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-rw-r--r--source/Plugins/ExpressionParser/Go/GoAST.h3225
-rw-r--r--source/Plugins/ExpressionParser/Go/GoLexer.cpp402
-rw-r--r--source/Plugins/ExpressionParser/Go/GoLexer.h201
-rw-r--r--source/Plugins/ExpressionParser/Go/GoParser.cpp1035
-rw-r--r--source/Plugins/ExpressionParser/Go/GoParser.h165
-rw-r--r--source/Plugins/ExpressionParser/Go/GoUserExpression.cpp756
-rw-r--r--source/Plugins/ExpressionParser/Go/GoUserExpression.h98
-rw-r--r--source/Plugins/ExpressionParser/Go/gen_go_ast.py356
8 files changed, 6238 insertions, 0 deletions
diff --git a/source/Plugins/ExpressionParser/Go/GoAST.h b/source/Plugins/ExpressionParser/Go/GoAST.h
new file mode 100644
index 0000000000000..6d51240eab5cc
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Go/GoAST.h
@@ -0,0 +1,3225 @@
+//===-- GoAST.h -------------------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// DO NOT EDIT.
+// Generated by gen_go_ast.py
+
+#ifndef liblldb_GoAST_h
+#define liblldb_GoAST_h
+
+#include "lldb/lldb-forward.h"
+#include "lldb/lldb-private.h"
+#include "llvm/Support/Casting.h"
+#include "Plugins/ExpressionParser/Go/GoLexer.h"
+
+namespace lldb_private
+{
+
+class GoASTNode
+{
+ public:
+ typedef GoLexer::TokenType TokenType;
+ typedef GoLexer::Token Token;
+ enum ChanDir
+ {
+ eChanBidir,
+ eChanSend,
+ eChanRecv,
+ };
+ enum NodeKind
+ {
+ eBadDecl,
+ eFuncDecl,
+ eGenDecl,
+ eArrayType,
+ eBadExpr,
+ eBasicLit,
+ eBinaryExpr,
+ eIdent,
+ eCallExpr,
+ eChanType,
+ eCompositeLit,
+ eEllipsis,
+ eFuncType,
+ eFuncLit,
+ eIndexExpr,
+ eInterfaceType,
+ eKeyValueExpr,
+ eMapType,
+ eParenExpr,
+ eSelectorExpr,
+ eSliceExpr,
+ eStarExpr,
+ eStructType,
+ eTypeAssertExpr,
+ eUnaryExpr,
+ eImportSpec,
+ eTypeSpec,
+ eValueSpec,
+ eAssignStmt,
+ eBadStmt,
+ eBlockStmt,
+ eBranchStmt,
+ eCaseClause,
+ eCommClause,
+ eDeclStmt,
+ eDeferStmt,
+ eEmptyStmt,
+ eExprStmt,
+ eForStmt,
+ eGoStmt,
+ eIfStmt,
+ eIncDecStmt,
+ eLabeledStmt,
+ eRangeStmt,
+ eReturnStmt,
+ eSelectStmt,
+ eSendStmt,
+ eSwitchStmt,
+ eTypeSwitchStmt,
+ eField,
+ eFieldList,
+ };
+
+ virtual ~GoASTNode() = default;
+
+ NodeKind
+ GetKind() const
+ {
+ return m_kind;
+ }
+
+ virtual const char *GetKindName() const = 0;
+
+ template <typename V> void WalkChildren(V &v);
+
+ protected:
+ explicit GoASTNode(NodeKind kind) : m_kind(kind) { }
+
+ private:
+ const NodeKind m_kind;
+
+ GoASTNode(const GoASTNode &) = delete;
+ const GoASTNode &operator=(const GoASTNode &) = delete;
+};
+
+
+class GoASTDecl : public GoASTNode
+{
+ public:
+ template <typename R, typename V> R Visit(V *v) const;
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() >= eBadDecl && n->GetKind() <= eGenDecl;
+ }
+
+ protected:
+ explicit GoASTDecl(NodeKind kind) : GoASTNode(kind) { }
+ private:
+
+ GoASTDecl(const GoASTDecl &) = delete;
+ const GoASTDecl &operator=(const GoASTDecl &) = delete;
+};
+
+class GoASTExpr : public GoASTNode
+{
+ public:
+ template <typename R, typename V> R Visit(V *v) const;
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() >= eArrayType && n->GetKind() <= eUnaryExpr;
+ }
+
+ protected:
+ explicit GoASTExpr(NodeKind kind) : GoASTNode(kind) { }
+ private:
+
+ GoASTExpr(const GoASTExpr &) = delete;
+ const GoASTExpr &operator=(const GoASTExpr &) = delete;
+};
+
+class GoASTSpec : public GoASTNode
+{
+ public:
+ template <typename R, typename V> R Visit(V *v) const;
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() >= eImportSpec && n->GetKind() <= eValueSpec;
+ }
+
+ protected:
+ explicit GoASTSpec(NodeKind kind) : GoASTNode(kind) { }
+ private:
+
+ GoASTSpec(const GoASTSpec &) = delete;
+ const GoASTSpec &operator=(const GoASTSpec &) = delete;
+};
+
+class GoASTStmt : public GoASTNode
+{
+ public:
+ template <typename R, typename V> R Visit(V *v) const;
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() >= eAssignStmt && n->GetKind() <= eTypeSwitchStmt;
+ }
+
+ protected:
+ explicit GoASTStmt(NodeKind kind) : GoASTNode(kind) { }
+ private:
+
+ GoASTStmt(const GoASTStmt &) = delete;
+ const GoASTStmt &operator=(const GoASTStmt &) = delete;
+};
+
+
+class GoASTArrayType : public GoASTExpr
+{
+ public:
+ GoASTArrayType(GoASTExpr *len, GoASTExpr *elt) : GoASTExpr(eArrayType), m_len_up(len), m_elt_up(elt) {}
+ ~GoASTArrayType() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "ArrayType";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eArrayType;
+ }
+
+ const GoASTExpr *
+ GetLen() const
+ {
+ return m_len_up.get();
+ }
+ void
+ SetLen(GoASTExpr *len)
+ {
+ m_len_up.reset(len);
+ }
+
+ const GoASTExpr *
+ GetElt() const
+ {
+ return m_elt_up.get();
+ }
+ void
+ SetElt(GoASTExpr *elt)
+ {
+ m_elt_up.reset(elt);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTExpr> m_len_up;
+ std::unique_ptr<GoASTExpr> m_elt_up;
+
+ GoASTArrayType(const GoASTArrayType &) = delete;
+ const GoASTArrayType &operator=(const GoASTArrayType &) = delete;
+};
+
+class GoASTAssignStmt : public GoASTStmt
+{
+ public:
+ explicit GoASTAssignStmt(bool define) : GoASTStmt(eAssignStmt), m_define(define) {}
+ ~GoASTAssignStmt() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "AssignStmt";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eAssignStmt;
+ }
+
+ size_t
+ NumLhs() const
+ {
+ return m_lhs.size();
+ }
+ const GoASTExpr *
+ GetLhs(int i) const
+ {
+ return m_lhs[i].get();
+ }
+ void
+ AddLhs(GoASTExpr *lhs)
+ {
+ m_lhs.push_back(std::unique_ptr<GoASTExpr>(lhs));
+ }
+
+ size_t
+ NumRhs() const
+ {
+ return m_rhs.size();
+ }
+ const GoASTExpr *
+ GetRhs(int i) const
+ {
+ return m_rhs[i].get();
+ }
+ void
+ AddRhs(GoASTExpr *rhs)
+ {
+ m_rhs.push_back(std::unique_ptr<GoASTExpr>(rhs));
+ }
+
+ bool
+ GetDefine() const
+ {
+ return m_define;
+ }
+ void
+ SetDefine(bool define)
+ {
+ m_define = define;
+ }
+
+ private:
+ friend class GoASTNode;
+ std::vector<std::unique_ptr<GoASTExpr> > m_lhs;
+ std::vector<std::unique_ptr<GoASTExpr> > m_rhs;
+ bool m_define;
+
+ GoASTAssignStmt(const GoASTAssignStmt &) = delete;
+ const GoASTAssignStmt &operator=(const GoASTAssignStmt &) = delete;
+};
+
+class GoASTBadDecl : public GoASTDecl
+{
+ public:
+ GoASTBadDecl() : GoASTDecl(eBadDecl) {}
+ ~GoASTBadDecl() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "BadDecl";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eBadDecl;
+ }
+
+ GoASTBadDecl(const GoASTBadDecl &) = delete;
+ const GoASTBadDecl &operator=(const GoASTBadDecl &) = delete;
+};
+
+class GoASTBadExpr : public GoASTExpr
+{
+ public:
+ GoASTBadExpr() : GoASTExpr(eBadExpr) {}
+ ~GoASTBadExpr() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "BadExpr";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eBadExpr;
+ }
+
+ GoASTBadExpr(const GoASTBadExpr &) = delete;
+ const GoASTBadExpr &operator=(const GoASTBadExpr &) = delete;
+};
+
+class GoASTBadStmt : public GoASTStmt
+{
+ public:
+ GoASTBadStmt() : GoASTStmt(eBadStmt) {}
+ ~GoASTBadStmt() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "BadStmt";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eBadStmt;
+ }
+
+ GoASTBadStmt(const GoASTBadStmt &) = delete;
+ const GoASTBadStmt &operator=(const GoASTBadStmt &) = delete;
+};
+
+class GoASTBasicLit : public GoASTExpr
+{
+ public:
+ explicit GoASTBasicLit(Token value) : GoASTExpr(eBasicLit), m_value(value) {}
+ ~GoASTBasicLit() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "BasicLit";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eBasicLit;
+ }
+
+ Token
+ GetValue() const
+ {
+ return m_value;
+ }
+ void
+ SetValue(Token value)
+ {
+ m_value = value;
+ }
+
+ private:
+ friend class GoASTNode;
+ Token m_value;
+
+ GoASTBasicLit(const GoASTBasicLit &) = delete;
+ const GoASTBasicLit &operator=(const GoASTBasicLit &) = delete;
+};
+
+class GoASTBinaryExpr : public GoASTExpr
+{
+ public:
+ GoASTBinaryExpr(GoASTExpr *x, GoASTExpr *y, TokenType op) : GoASTExpr(eBinaryExpr), m_x_up(x), m_y_up(y), m_op(op) {}
+ ~GoASTBinaryExpr() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "BinaryExpr";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eBinaryExpr;
+ }
+
+ const GoASTExpr *
+ GetX() const
+ {
+ return m_x_up.get();
+ }
+ void
+ SetX(GoASTExpr *x)
+ {
+ m_x_up.reset(x);
+ }
+
+ const GoASTExpr *
+ GetY() const
+ {
+ return m_y_up.get();
+ }
+ void
+ SetY(GoASTExpr *y)
+ {
+ m_y_up.reset(y);
+ }
+
+ TokenType
+ GetOp() const
+ {
+ return m_op;
+ }
+ void
+ SetOp(TokenType op)
+ {
+ m_op = op;
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTExpr> m_x_up;
+ std::unique_ptr<GoASTExpr> m_y_up;
+ TokenType m_op;
+
+ GoASTBinaryExpr(const GoASTBinaryExpr &) = delete;
+ const GoASTBinaryExpr &operator=(const GoASTBinaryExpr &) = delete;
+};
+
+class GoASTBlockStmt : public GoASTStmt
+{
+ public:
+ GoASTBlockStmt() : GoASTStmt(eBlockStmt) {}
+ ~GoASTBlockStmt() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "BlockStmt";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eBlockStmt;
+ }
+
+ size_t
+ NumList() const
+ {
+ return m_list.size();
+ }
+ const GoASTStmt *
+ GetList(int i) const
+ {
+ return m_list[i].get();
+ }
+ void
+ AddList(GoASTStmt *list)
+ {
+ m_list.push_back(std::unique_ptr<GoASTStmt>(list));
+ }
+
+ private:
+ friend class GoASTNode;
+ std::vector<std::unique_ptr<GoASTStmt> > m_list;
+
+ GoASTBlockStmt(const GoASTBlockStmt &) = delete;
+ const GoASTBlockStmt &operator=(const GoASTBlockStmt &) = delete;
+};
+
+class GoASTIdent : public GoASTExpr
+{
+ public:
+ explicit GoASTIdent(Token name) : GoASTExpr(eIdent), m_name(name) {}
+ ~GoASTIdent() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "Ident";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eIdent;
+ }
+
+ Token
+ GetName() const
+ {
+ return m_name;
+ }
+ void
+ SetName(Token name)
+ {
+ m_name = name;
+ }
+
+ private:
+ friend class GoASTNode;
+ Token m_name;
+
+ GoASTIdent(const GoASTIdent &) = delete;
+ const GoASTIdent &operator=(const GoASTIdent &) = delete;
+};
+
+class GoASTBranchStmt : public GoASTStmt
+{
+ public:
+ GoASTBranchStmt(GoASTIdent *label, TokenType tok) : GoASTStmt(eBranchStmt), m_label_up(label), m_tok(tok) {}
+ ~GoASTBranchStmt() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "BranchStmt";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eBranchStmt;
+ }
+
+ const GoASTIdent *
+ GetLabel() const
+ {
+ return m_label_up.get();
+ }
+ void
+ SetLabel(GoASTIdent *label)
+ {
+ m_label_up.reset(label);
+ }
+
+ TokenType
+ GetTok() const
+ {
+ return m_tok;
+ }
+ void
+ SetTok(TokenType tok)
+ {
+ m_tok = tok;
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTIdent> m_label_up;
+ TokenType m_tok;
+
+ GoASTBranchStmt(const GoASTBranchStmt &) = delete;
+ const GoASTBranchStmt &operator=(const GoASTBranchStmt &) = delete;
+};
+
+class GoASTCallExpr : public GoASTExpr
+{
+ public:
+ explicit GoASTCallExpr(bool ellipsis) : GoASTExpr(eCallExpr), m_ellipsis(ellipsis) {}
+ ~GoASTCallExpr() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "CallExpr";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eCallExpr;
+ }
+
+ const GoASTExpr *
+ GetFun() const
+ {
+ return m_fun_up.get();
+ }
+ void
+ SetFun(GoASTExpr *fun)
+ {
+ m_fun_up.reset(fun);
+ }
+
+ size_t
+ NumArgs() const
+ {
+ return m_args.size();
+ }
+ const GoASTExpr *
+ GetArgs(int i) const
+ {
+ return m_args[i].get();
+ }
+ void
+ AddArgs(GoASTExpr *args)
+ {
+ m_args.push_back(std::unique_ptr<GoASTExpr>(args));
+ }
+
+ bool
+ GetEllipsis() const
+ {
+ return m_ellipsis;
+ }
+ void
+ SetEllipsis(bool ellipsis)
+ {
+ m_ellipsis = ellipsis;
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTExpr> m_fun_up;
+ std::vector<std::unique_ptr<GoASTExpr> > m_args;
+ bool m_ellipsis;
+
+ GoASTCallExpr(const GoASTCallExpr &) = delete;
+ const GoASTCallExpr &operator=(const GoASTCallExpr &) = delete;
+};
+
+class GoASTCaseClause : public GoASTStmt
+{
+ public:
+ GoASTCaseClause() : GoASTStmt(eCaseClause) {}
+ ~GoASTCaseClause() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "CaseClause";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eCaseClause;
+ }
+
+ size_t
+ NumList() const
+ {
+ return m_list.size();
+ }
+ const GoASTExpr *
+ GetList(int i) const
+ {
+ return m_list[i].get();
+ }
+ void
+ AddList(GoASTExpr *list)
+ {
+ m_list.push_back(std::unique_ptr<GoASTExpr>(list));
+ }
+
+ size_t
+ NumBody() const
+ {
+ return m_body.size();
+ }
+ const GoASTStmt *
+ GetBody(int i) const
+ {
+ return m_body[i].get();
+ }
+ void
+ AddBody(GoASTStmt *body)
+ {
+ m_body.push_back(std::unique_ptr<GoASTStmt>(body));
+ }
+
+ private:
+ friend class GoASTNode;
+ std::vector<std::unique_ptr<GoASTExpr> > m_list;
+ std::vector<std::unique_ptr<GoASTStmt> > m_body;
+
+ GoASTCaseClause(const GoASTCaseClause &) = delete;
+ const GoASTCaseClause &operator=(const GoASTCaseClause &) = delete;
+};
+
+class GoASTChanType : public GoASTExpr
+{
+ public:
+ GoASTChanType(ChanDir dir, GoASTExpr *value) : GoASTExpr(eChanType), m_dir(dir), m_value_up(value) {}
+ ~GoASTChanType() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "ChanType";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eChanType;
+ }
+
+ ChanDir
+ GetDir() const
+ {
+ return m_dir;
+ }
+ void
+ SetDir(ChanDir dir)
+ {
+ m_dir = dir;
+ }
+
+ const GoASTExpr *
+ GetValue() const
+ {
+ return m_value_up.get();
+ }
+ void
+ SetValue(GoASTExpr *value)
+ {
+ m_value_up.reset(value);
+ }
+
+ private:
+ friend class GoASTNode;
+ ChanDir m_dir;
+ std::unique_ptr<GoASTExpr> m_value_up;
+
+ GoASTChanType(const GoASTChanType &) = delete;
+ const GoASTChanType &operator=(const GoASTChanType &) = delete;
+};
+
+class GoASTCommClause : public GoASTStmt
+{
+ public:
+ GoASTCommClause() : GoASTStmt(eCommClause) {}
+ ~GoASTCommClause() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "CommClause";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eCommClause;
+ }
+
+ const GoASTStmt *
+ GetComm() const
+ {
+ return m_comm_up.get();
+ }
+ void
+ SetComm(GoASTStmt *comm)
+ {
+ m_comm_up.reset(comm);
+ }
+
+ size_t
+ NumBody() const
+ {
+ return m_body.size();
+ }
+ const GoASTStmt *
+ GetBody(int i) const
+ {
+ return m_body[i].get();
+ }
+ void
+ AddBody(GoASTStmt *body)
+ {
+ m_body.push_back(std::unique_ptr<GoASTStmt>(body));
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTStmt> m_comm_up;
+ std::vector<std::unique_ptr<GoASTStmt> > m_body;
+
+ GoASTCommClause(const GoASTCommClause &) = delete;
+ const GoASTCommClause &operator=(const GoASTCommClause &) = delete;
+};
+
+class GoASTCompositeLit : public GoASTExpr
+{
+ public:
+ GoASTCompositeLit() : GoASTExpr(eCompositeLit) {}
+ ~GoASTCompositeLit() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "CompositeLit";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eCompositeLit;
+ }
+
+ const GoASTExpr *
+ GetType() const
+ {
+ return m_type_up.get();
+ }
+ void
+ SetType(GoASTExpr *type)
+ {
+ m_type_up.reset(type);
+ }
+
+ size_t
+ NumElts() const
+ {
+ return m_elts.size();
+ }
+ const GoASTExpr *
+ GetElts(int i) const
+ {
+ return m_elts[i].get();
+ }
+ void
+ AddElts(GoASTExpr *elts)
+ {
+ m_elts.push_back(std::unique_ptr<GoASTExpr>(elts));
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTExpr> m_type_up;
+ std::vector<std::unique_ptr<GoASTExpr> > m_elts;
+
+ GoASTCompositeLit(const GoASTCompositeLit &) = delete;
+ const GoASTCompositeLit &operator=(const GoASTCompositeLit &) = delete;
+};
+
+class GoASTDeclStmt : public GoASTStmt
+{
+ public:
+ explicit GoASTDeclStmt(GoASTDecl *decl) : GoASTStmt(eDeclStmt), m_decl_up(decl) {}
+ ~GoASTDeclStmt() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "DeclStmt";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eDeclStmt;
+ }
+
+ const GoASTDecl *
+ GetDecl() const
+ {
+ return m_decl_up.get();
+ }
+ void
+ SetDecl(GoASTDecl *decl)
+ {
+ m_decl_up.reset(decl);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTDecl> m_decl_up;
+
+ GoASTDeclStmt(const GoASTDeclStmt &) = delete;
+ const GoASTDeclStmt &operator=(const GoASTDeclStmt &) = delete;
+};
+
+class GoASTDeferStmt : public GoASTStmt
+{
+ public:
+ explicit GoASTDeferStmt(GoASTCallExpr *call) : GoASTStmt(eDeferStmt), m_call_up(call) {}
+ ~GoASTDeferStmt() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "DeferStmt";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eDeferStmt;
+ }
+
+ const GoASTCallExpr *
+ GetCall() const
+ {
+ return m_call_up.get();
+ }
+ void
+ SetCall(GoASTCallExpr *call)
+ {
+ m_call_up.reset(call);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTCallExpr> m_call_up;
+
+ GoASTDeferStmt(const GoASTDeferStmt &) = delete;
+ const GoASTDeferStmt &operator=(const GoASTDeferStmt &) = delete;
+};
+
+class GoASTEllipsis : public GoASTExpr
+{
+ public:
+ explicit GoASTEllipsis(GoASTExpr *elt) : GoASTExpr(eEllipsis), m_elt_up(elt) {}
+ ~GoASTEllipsis() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "Ellipsis";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eEllipsis;
+ }
+
+ const GoASTExpr *
+ GetElt() const
+ {
+ return m_elt_up.get();
+ }
+ void
+ SetElt(GoASTExpr *elt)
+ {
+ m_elt_up.reset(elt);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTExpr> m_elt_up;
+
+ GoASTEllipsis(const GoASTEllipsis &) = delete;
+ const GoASTEllipsis &operator=(const GoASTEllipsis &) = delete;
+};
+
+class GoASTEmptyStmt : public GoASTStmt
+{
+ public:
+ GoASTEmptyStmt() : GoASTStmt(eEmptyStmt) {}
+ ~GoASTEmptyStmt() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "EmptyStmt";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eEmptyStmt;
+ }
+
+ GoASTEmptyStmt(const GoASTEmptyStmt &) = delete;
+ const GoASTEmptyStmt &operator=(const GoASTEmptyStmt &) = delete;
+};
+
+class GoASTExprStmt : public GoASTStmt
+{
+ public:
+ explicit GoASTExprStmt(GoASTExpr *x) : GoASTStmt(eExprStmt), m_x_up(x) {}
+ ~GoASTExprStmt() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "ExprStmt";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eExprStmt;
+ }
+
+ const GoASTExpr *
+ GetX() const
+ {
+ return m_x_up.get();
+ }
+ void
+ SetX(GoASTExpr *x)
+ {
+ m_x_up.reset(x);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTExpr> m_x_up;
+
+ GoASTExprStmt(const GoASTExprStmt &) = delete;
+ const GoASTExprStmt &operator=(const GoASTExprStmt &) = delete;
+};
+
+class GoASTField : public GoASTNode
+{
+ public:
+ GoASTField() : GoASTNode(eField) {}
+ ~GoASTField() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "Field";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eField;
+ }
+
+ size_t
+ NumNames() const
+ {
+ return m_names.size();
+ }
+ const GoASTIdent *
+ GetNames(int i) const
+ {
+ return m_names[i].get();
+ }
+ void
+ AddNames(GoASTIdent *names)
+ {
+ m_names.push_back(std::unique_ptr<GoASTIdent>(names));
+ }
+
+ const GoASTExpr *
+ GetType() const
+ {
+ return m_type_up.get();
+ }
+ void
+ SetType(GoASTExpr *type)
+ {
+ m_type_up.reset(type);
+ }
+
+ const GoASTBasicLit *
+ GetTag() const
+ {
+ return m_tag_up.get();
+ }
+ void
+ SetTag(GoASTBasicLit *tag)
+ {
+ m_tag_up.reset(tag);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::vector<std::unique_ptr<GoASTIdent> > m_names;
+ std::unique_ptr<GoASTExpr> m_type_up;
+ std::unique_ptr<GoASTBasicLit> m_tag_up;
+
+ GoASTField(const GoASTField &) = delete;
+ const GoASTField &operator=(const GoASTField &) = delete;
+};
+
+class GoASTFieldList : public GoASTNode
+{
+ public:
+ GoASTFieldList() : GoASTNode(eFieldList) {}
+ ~GoASTFieldList() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "FieldList";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eFieldList;
+ }
+
+ size_t
+ NumList() const
+ {
+ return m_list.size();
+ }
+ const GoASTField *
+ GetList(int i) const
+ {
+ return m_list[i].get();
+ }
+ void
+ AddList(GoASTField *list)
+ {
+ m_list.push_back(std::unique_ptr<GoASTField>(list));
+ }
+
+ private:
+ friend class GoASTNode;
+ std::vector<std::unique_ptr<GoASTField> > m_list;
+
+ GoASTFieldList(const GoASTFieldList &) = delete;
+ const GoASTFieldList &operator=(const GoASTFieldList &) = delete;
+};
+
+class GoASTForStmt : public GoASTStmt
+{
+ public:
+ GoASTForStmt(GoASTStmt *init, GoASTExpr *cond, GoASTStmt *post, GoASTBlockStmt *body) : GoASTStmt(eForStmt), m_init_up(init), m_cond_up(cond), m_post_up(post), m_body_up(body) {}
+ ~GoASTForStmt() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "ForStmt";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eForStmt;
+ }
+
+ const GoASTStmt *
+ GetInit() const
+ {
+ return m_init_up.get();
+ }
+ void
+ SetInit(GoASTStmt *init)
+ {
+ m_init_up.reset(init);
+ }
+
+ const GoASTExpr *
+ GetCond() const
+ {
+ return m_cond_up.get();
+ }
+ void
+ SetCond(GoASTExpr *cond)
+ {
+ m_cond_up.reset(cond);
+ }
+
+ const GoASTStmt *
+ GetPost() const
+ {
+ return m_post_up.get();
+ }
+ void
+ SetPost(GoASTStmt *post)
+ {
+ m_post_up.reset(post);
+ }
+
+ const GoASTBlockStmt *
+ GetBody() const
+ {
+ return m_body_up.get();
+ }
+ void
+ SetBody(GoASTBlockStmt *body)
+ {
+ m_body_up.reset(body);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTStmt> m_init_up;
+ std::unique_ptr<GoASTExpr> m_cond_up;
+ std::unique_ptr<GoASTStmt> m_post_up;
+ std::unique_ptr<GoASTBlockStmt> m_body_up;
+
+ GoASTForStmt(const GoASTForStmt &) = delete;
+ const GoASTForStmt &operator=(const GoASTForStmt &) = delete;
+};
+
+class GoASTFuncType : public GoASTExpr
+{
+ public:
+ GoASTFuncType(GoASTFieldList *params, GoASTFieldList *results) : GoASTExpr(eFuncType), m_params_up(params), m_results_up(results) {}
+ ~GoASTFuncType() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "FuncType";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eFuncType;
+ }
+
+ const GoASTFieldList *
+ GetParams() const
+ {
+ return m_params_up.get();
+ }
+ void
+ SetParams(GoASTFieldList *params)
+ {
+ m_params_up.reset(params);
+ }
+
+ const GoASTFieldList *
+ GetResults() const
+ {
+ return m_results_up.get();
+ }
+ void
+ SetResults(GoASTFieldList *results)
+ {
+ m_results_up.reset(results);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTFieldList> m_params_up;
+ std::unique_ptr<GoASTFieldList> m_results_up;
+
+ GoASTFuncType(const GoASTFuncType &) = delete;
+ const GoASTFuncType &operator=(const GoASTFuncType &) = delete;
+};
+
+class GoASTFuncDecl : public GoASTDecl
+{
+ public:
+ GoASTFuncDecl(GoASTFieldList *recv, GoASTIdent *name, GoASTFuncType *type, GoASTBlockStmt *body) : GoASTDecl(eFuncDecl), m_recv_up(recv), m_name_up(name), m_type_up(type), m_body_up(body) {}
+ ~GoASTFuncDecl() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "FuncDecl";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eFuncDecl;
+ }
+
+ const GoASTFieldList *
+ GetRecv() const
+ {
+ return m_recv_up.get();
+ }
+ void
+ SetRecv(GoASTFieldList *recv)
+ {
+ m_recv_up.reset(recv);
+ }
+
+ const GoASTIdent *
+ GetName() const
+ {
+ return m_name_up.get();
+ }
+ void
+ SetName(GoASTIdent *name)
+ {
+ m_name_up.reset(name);
+ }
+
+ const GoASTFuncType *
+ GetType() const
+ {
+ return m_type_up.get();
+ }
+ void
+ SetType(GoASTFuncType *type)
+ {
+ m_type_up.reset(type);
+ }
+
+ const GoASTBlockStmt *
+ GetBody() const
+ {
+ return m_body_up.get();
+ }
+ void
+ SetBody(GoASTBlockStmt *body)
+ {
+ m_body_up.reset(body);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTFieldList> m_recv_up;
+ std::unique_ptr<GoASTIdent> m_name_up;
+ std::unique_ptr<GoASTFuncType> m_type_up;
+ std::unique_ptr<GoASTBlockStmt> m_body_up;
+
+ GoASTFuncDecl(const GoASTFuncDecl &) = delete;
+ const GoASTFuncDecl &operator=(const GoASTFuncDecl &) = delete;
+};
+
+class GoASTFuncLit : public GoASTExpr
+{
+ public:
+ GoASTFuncLit(GoASTFuncType *type, GoASTBlockStmt *body) : GoASTExpr(eFuncLit), m_type_up(type), m_body_up(body) {}
+ ~GoASTFuncLit() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "FuncLit";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eFuncLit;
+ }
+
+ const GoASTFuncType *
+ GetType() const
+ {
+ return m_type_up.get();
+ }
+ void
+ SetType(GoASTFuncType *type)
+ {
+ m_type_up.reset(type);
+ }
+
+ const GoASTBlockStmt *
+ GetBody() const
+ {
+ return m_body_up.get();
+ }
+ void
+ SetBody(GoASTBlockStmt *body)
+ {
+ m_body_up.reset(body);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTFuncType> m_type_up;
+ std::unique_ptr<GoASTBlockStmt> m_body_up;
+
+ GoASTFuncLit(const GoASTFuncLit &) = delete;
+ const GoASTFuncLit &operator=(const GoASTFuncLit &) = delete;
+};
+
+class GoASTGenDecl : public GoASTDecl
+{
+ public:
+ explicit GoASTGenDecl(TokenType tok) : GoASTDecl(eGenDecl), m_tok(tok) {}
+ ~GoASTGenDecl() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "GenDecl";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eGenDecl;
+ }
+
+ TokenType
+ GetTok() const
+ {
+ return m_tok;
+ }
+ void
+ SetTok(TokenType tok)
+ {
+ m_tok = tok;
+ }
+
+ size_t
+ NumSpecs() const
+ {
+ return m_specs.size();
+ }
+ const GoASTSpec *
+ GetSpecs(int i) const
+ {
+ return m_specs[i].get();
+ }
+ void
+ AddSpecs(GoASTSpec *specs)
+ {
+ m_specs.push_back(std::unique_ptr<GoASTSpec>(specs));
+ }
+
+ private:
+ friend class GoASTNode;
+ TokenType m_tok;
+ std::vector<std::unique_ptr<GoASTSpec> > m_specs;
+
+ GoASTGenDecl(const GoASTGenDecl &) = delete;
+ const GoASTGenDecl &operator=(const GoASTGenDecl &) = delete;
+};
+
+class GoASTGoStmt : public GoASTStmt
+{
+ public:
+ explicit GoASTGoStmt(GoASTCallExpr *call) : GoASTStmt(eGoStmt), m_call_up(call) {}
+ ~GoASTGoStmt() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "GoStmt";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eGoStmt;
+ }
+
+ const GoASTCallExpr *
+ GetCall() const
+ {
+ return m_call_up.get();
+ }
+ void
+ SetCall(GoASTCallExpr *call)
+ {
+ m_call_up.reset(call);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTCallExpr> m_call_up;
+
+ GoASTGoStmt(const GoASTGoStmt &) = delete;
+ const GoASTGoStmt &operator=(const GoASTGoStmt &) = delete;
+};
+
+class GoASTIfStmt : public GoASTStmt
+{
+ public:
+ GoASTIfStmt(GoASTStmt *init, GoASTExpr *cond, GoASTBlockStmt *body, GoASTStmt *els) : GoASTStmt(eIfStmt), m_init_up(init), m_cond_up(cond), m_body_up(body), m_els_up(els) {}
+ ~GoASTIfStmt() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "IfStmt";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eIfStmt;
+ }
+
+ const GoASTStmt *
+ GetInit() const
+ {
+ return m_init_up.get();
+ }
+ void
+ SetInit(GoASTStmt *init)
+ {
+ m_init_up.reset(init);
+ }
+
+ const GoASTExpr *
+ GetCond() const
+ {
+ return m_cond_up.get();
+ }
+ void
+ SetCond(GoASTExpr *cond)
+ {
+ m_cond_up.reset(cond);
+ }
+
+ const GoASTBlockStmt *
+ GetBody() const
+ {
+ return m_body_up.get();
+ }
+ void
+ SetBody(GoASTBlockStmt *body)
+ {
+ m_body_up.reset(body);
+ }
+
+ const GoASTStmt *
+ GetEls() const
+ {
+ return m_els_up.get();
+ }
+ void
+ SetEls(GoASTStmt *els)
+ {
+ m_els_up.reset(els);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTStmt> m_init_up;
+ std::unique_ptr<GoASTExpr> m_cond_up;
+ std::unique_ptr<GoASTBlockStmt> m_body_up;
+ std::unique_ptr<GoASTStmt> m_els_up;
+
+ GoASTIfStmt(const GoASTIfStmt &) = delete;
+ const GoASTIfStmt &operator=(const GoASTIfStmt &) = delete;
+};
+
+class GoASTImportSpec : public GoASTSpec
+{
+ public:
+ GoASTImportSpec(GoASTIdent *name, GoASTBasicLit *path) : GoASTSpec(eImportSpec), m_name_up(name), m_path_up(path) {}
+ ~GoASTImportSpec() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "ImportSpec";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eImportSpec;
+ }
+
+ const GoASTIdent *
+ GetName() const
+ {
+ return m_name_up.get();
+ }
+ void
+ SetName(GoASTIdent *name)
+ {
+ m_name_up.reset(name);
+ }
+
+ const GoASTBasicLit *
+ GetPath() const
+ {
+ return m_path_up.get();
+ }
+ void
+ SetPath(GoASTBasicLit *path)
+ {
+ m_path_up.reset(path);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTIdent> m_name_up;
+ std::unique_ptr<GoASTBasicLit> m_path_up;
+
+ GoASTImportSpec(const GoASTImportSpec &) = delete;
+ const GoASTImportSpec &operator=(const GoASTImportSpec &) = delete;
+};
+
+class GoASTIncDecStmt : public GoASTStmt
+{
+ public:
+ GoASTIncDecStmt(GoASTExpr *x, TokenType tok) : GoASTStmt(eIncDecStmt), m_x_up(x), m_tok(tok) {}
+ ~GoASTIncDecStmt() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "IncDecStmt";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eIncDecStmt;
+ }
+
+ const GoASTExpr *
+ GetX() const
+ {
+ return m_x_up.get();
+ }
+ void
+ SetX(GoASTExpr *x)
+ {
+ m_x_up.reset(x);
+ }
+
+ TokenType
+ GetTok() const
+ {
+ return m_tok;
+ }
+ void
+ SetTok(TokenType tok)
+ {
+ m_tok = tok;
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTExpr> m_x_up;
+ TokenType m_tok;
+
+ GoASTIncDecStmt(const GoASTIncDecStmt &) = delete;
+ const GoASTIncDecStmt &operator=(const GoASTIncDecStmt &) = delete;
+};
+
+class GoASTIndexExpr : public GoASTExpr
+{
+ public:
+ GoASTIndexExpr(GoASTExpr *x, GoASTExpr *index) : GoASTExpr(eIndexExpr), m_x_up(x), m_index_up(index) {}
+ ~GoASTIndexExpr() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "IndexExpr";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eIndexExpr;
+ }
+
+ const GoASTExpr *
+ GetX() const
+ {
+ return m_x_up.get();
+ }
+ void
+ SetX(GoASTExpr *x)
+ {
+ m_x_up.reset(x);
+ }
+
+ const GoASTExpr *
+ GetIndex() const
+ {
+ return m_index_up.get();
+ }
+ void
+ SetIndex(GoASTExpr *index)
+ {
+ m_index_up.reset(index);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTExpr> m_x_up;
+ std::unique_ptr<GoASTExpr> m_index_up;
+
+ GoASTIndexExpr(const GoASTIndexExpr &) = delete;
+ const GoASTIndexExpr &operator=(const GoASTIndexExpr &) = delete;
+};
+
+class GoASTInterfaceType : public GoASTExpr
+{
+ public:
+ explicit GoASTInterfaceType(GoASTFieldList *methods) : GoASTExpr(eInterfaceType), m_methods_up(methods) {}
+ ~GoASTInterfaceType() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "InterfaceType";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eInterfaceType;
+ }
+
+ const GoASTFieldList *
+ GetMethods() const
+ {
+ return m_methods_up.get();
+ }
+ void
+ SetMethods(GoASTFieldList *methods)
+ {
+ m_methods_up.reset(methods);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTFieldList> m_methods_up;
+
+ GoASTInterfaceType(const GoASTInterfaceType &) = delete;
+ const GoASTInterfaceType &operator=(const GoASTInterfaceType &) = delete;
+};
+
+class GoASTKeyValueExpr : public GoASTExpr
+{
+ public:
+ GoASTKeyValueExpr(GoASTExpr *key, GoASTExpr *value) : GoASTExpr(eKeyValueExpr), m_key_up(key), m_value_up(value) {}
+ ~GoASTKeyValueExpr() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "KeyValueExpr";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eKeyValueExpr;
+ }
+
+ const GoASTExpr *
+ GetKey() const
+ {
+ return m_key_up.get();
+ }
+ void
+ SetKey(GoASTExpr *key)
+ {
+ m_key_up.reset(key);
+ }
+
+ const GoASTExpr *
+ GetValue() const
+ {
+ return m_value_up.get();
+ }
+ void
+ SetValue(GoASTExpr *value)
+ {
+ m_value_up.reset(value);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTExpr> m_key_up;
+ std::unique_ptr<GoASTExpr> m_value_up;
+
+ GoASTKeyValueExpr(const GoASTKeyValueExpr &) = delete;
+ const GoASTKeyValueExpr &operator=(const GoASTKeyValueExpr &) = delete;
+};
+
+class GoASTLabeledStmt : public GoASTStmt
+{
+ public:
+ GoASTLabeledStmt(GoASTIdent *label, GoASTStmt *stmt) : GoASTStmt(eLabeledStmt), m_label_up(label), m_stmt_up(stmt) {}
+ ~GoASTLabeledStmt() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "LabeledStmt";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eLabeledStmt;
+ }
+
+ const GoASTIdent *
+ GetLabel() const
+ {
+ return m_label_up.get();
+ }
+ void
+ SetLabel(GoASTIdent *label)
+ {
+ m_label_up.reset(label);
+ }
+
+ const GoASTStmt *
+ GetStmt() const
+ {
+ return m_stmt_up.get();
+ }
+ void
+ SetStmt(GoASTStmt *stmt)
+ {
+ m_stmt_up.reset(stmt);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTIdent> m_label_up;
+ std::unique_ptr<GoASTStmt> m_stmt_up;
+
+ GoASTLabeledStmt(const GoASTLabeledStmt &) = delete;
+ const GoASTLabeledStmt &operator=(const GoASTLabeledStmt &) = delete;
+};
+
+class GoASTMapType : public GoASTExpr
+{
+ public:
+ GoASTMapType(GoASTExpr *key, GoASTExpr *value) : GoASTExpr(eMapType), m_key_up(key), m_value_up(value) {}
+ ~GoASTMapType() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "MapType";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eMapType;
+ }
+
+ const GoASTExpr *
+ GetKey() const
+ {
+ return m_key_up.get();
+ }
+ void
+ SetKey(GoASTExpr *key)
+ {
+ m_key_up.reset(key);
+ }
+
+ const GoASTExpr *
+ GetValue() const
+ {
+ return m_value_up.get();
+ }
+ void
+ SetValue(GoASTExpr *value)
+ {
+ m_value_up.reset(value);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTExpr> m_key_up;
+ std::unique_ptr<GoASTExpr> m_value_up;
+
+ GoASTMapType(const GoASTMapType &) = delete;
+ const GoASTMapType &operator=(const GoASTMapType &) = delete;
+};
+
+class GoASTParenExpr : public GoASTExpr
+{
+ public:
+ explicit GoASTParenExpr(GoASTExpr *x) : GoASTExpr(eParenExpr), m_x_up(x) {}
+ ~GoASTParenExpr() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "ParenExpr";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eParenExpr;
+ }
+
+ const GoASTExpr *
+ GetX() const
+ {
+ return m_x_up.get();
+ }
+ void
+ SetX(GoASTExpr *x)
+ {
+ m_x_up.reset(x);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTExpr> m_x_up;
+
+ GoASTParenExpr(const GoASTParenExpr &) = delete;
+ const GoASTParenExpr &operator=(const GoASTParenExpr &) = delete;
+};
+
+class GoASTRangeStmt : public GoASTStmt
+{
+ public:
+ GoASTRangeStmt(GoASTExpr *key, GoASTExpr *value, bool define, GoASTExpr *x, GoASTBlockStmt *body) : GoASTStmt(eRangeStmt), m_key_up(key), m_value_up(value), m_define(define), m_x_up(x), m_body_up(body) {}
+ ~GoASTRangeStmt() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "RangeStmt";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eRangeStmt;
+ }
+
+ const GoASTExpr *
+ GetKey() const
+ {
+ return m_key_up.get();
+ }
+ void
+ SetKey(GoASTExpr *key)
+ {
+ m_key_up.reset(key);
+ }
+
+ const GoASTExpr *
+ GetValue() const
+ {
+ return m_value_up.get();
+ }
+ void
+ SetValue(GoASTExpr *value)
+ {
+ m_value_up.reset(value);
+ }
+
+ bool
+ GetDefine() const
+ {
+ return m_define;
+ }
+ void
+ SetDefine(bool define)
+ {
+ m_define = define;
+ }
+
+ const GoASTExpr *
+ GetX() const
+ {
+ return m_x_up.get();
+ }
+ void
+ SetX(GoASTExpr *x)
+ {
+ m_x_up.reset(x);
+ }
+
+ const GoASTBlockStmt *
+ GetBody() const
+ {
+ return m_body_up.get();
+ }
+ void
+ SetBody(GoASTBlockStmt *body)
+ {
+ m_body_up.reset(body);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTExpr> m_key_up;
+ std::unique_ptr<GoASTExpr> m_value_up;
+ bool m_define;
+ std::unique_ptr<GoASTExpr> m_x_up;
+ std::unique_ptr<GoASTBlockStmt> m_body_up;
+
+ GoASTRangeStmt(const GoASTRangeStmt &) = delete;
+ const GoASTRangeStmt &operator=(const GoASTRangeStmt &) = delete;
+};
+
+class GoASTReturnStmt : public GoASTStmt
+{
+ public:
+ GoASTReturnStmt() : GoASTStmt(eReturnStmt) {}
+ ~GoASTReturnStmt() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "ReturnStmt";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eReturnStmt;
+ }
+
+ size_t
+ NumResults() const
+ {
+ return m_results.size();
+ }
+ const GoASTExpr *
+ GetResults(int i) const
+ {
+ return m_results[i].get();
+ }
+ void
+ AddResults(GoASTExpr *results)
+ {
+ m_results.push_back(std::unique_ptr<GoASTExpr>(results));
+ }
+
+ private:
+ friend class GoASTNode;
+ std::vector<std::unique_ptr<GoASTExpr> > m_results;
+
+ GoASTReturnStmt(const GoASTReturnStmt &) = delete;
+ const GoASTReturnStmt &operator=(const GoASTReturnStmt &) = delete;
+};
+
+class GoASTSelectStmt : public GoASTStmt
+{
+ public:
+ explicit GoASTSelectStmt(GoASTBlockStmt *body) : GoASTStmt(eSelectStmt), m_body_up(body) {}
+ ~GoASTSelectStmt() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "SelectStmt";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eSelectStmt;
+ }
+
+ const GoASTBlockStmt *
+ GetBody() const
+ {
+ return m_body_up.get();
+ }
+ void
+ SetBody(GoASTBlockStmt *body)
+ {
+ m_body_up.reset(body);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTBlockStmt> m_body_up;
+
+ GoASTSelectStmt(const GoASTSelectStmt &) = delete;
+ const GoASTSelectStmt &operator=(const GoASTSelectStmt &) = delete;
+};
+
+class GoASTSelectorExpr : public GoASTExpr
+{
+ public:
+ GoASTSelectorExpr(GoASTExpr *x, GoASTIdent *sel) : GoASTExpr(eSelectorExpr), m_x_up(x), m_sel_up(sel) {}
+ ~GoASTSelectorExpr() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "SelectorExpr";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eSelectorExpr;
+ }
+
+ const GoASTExpr *
+ GetX() const
+ {
+ return m_x_up.get();
+ }
+ void
+ SetX(GoASTExpr *x)
+ {
+ m_x_up.reset(x);
+ }
+
+ const GoASTIdent *
+ GetSel() const
+ {
+ return m_sel_up.get();
+ }
+ void
+ SetSel(GoASTIdent *sel)
+ {
+ m_sel_up.reset(sel);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTExpr> m_x_up;
+ std::unique_ptr<GoASTIdent> m_sel_up;
+
+ GoASTSelectorExpr(const GoASTSelectorExpr &) = delete;
+ const GoASTSelectorExpr &operator=(const GoASTSelectorExpr &) = delete;
+};
+
+class GoASTSendStmt : public GoASTStmt
+{
+ public:
+ GoASTSendStmt(GoASTExpr *chan, GoASTExpr *value) : GoASTStmt(eSendStmt), m_chan_up(chan), m_value_up(value) {}
+ ~GoASTSendStmt() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "SendStmt";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eSendStmt;
+ }
+
+ const GoASTExpr *
+ GetChan() const
+ {
+ return m_chan_up.get();
+ }
+ void
+ SetChan(GoASTExpr *chan)
+ {
+ m_chan_up.reset(chan);
+ }
+
+ const GoASTExpr *
+ GetValue() const
+ {
+ return m_value_up.get();
+ }
+ void
+ SetValue(GoASTExpr *value)
+ {
+ m_value_up.reset(value);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTExpr> m_chan_up;
+ std::unique_ptr<GoASTExpr> m_value_up;
+
+ GoASTSendStmt(const GoASTSendStmt &) = delete;
+ const GoASTSendStmt &operator=(const GoASTSendStmt &) = delete;
+};
+
+class GoASTSliceExpr : public GoASTExpr
+{
+ public:
+ GoASTSliceExpr(GoASTExpr *x, GoASTExpr *low, GoASTExpr *high, GoASTExpr *max, bool slice3) : GoASTExpr(eSliceExpr), m_x_up(x), m_low_up(low), m_high_up(high), m_max_up(max), m_slice3(slice3) {}
+ ~GoASTSliceExpr() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "SliceExpr";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eSliceExpr;
+ }
+
+ const GoASTExpr *
+ GetX() const
+ {
+ return m_x_up.get();
+ }
+ void
+ SetX(GoASTExpr *x)
+ {
+ m_x_up.reset(x);
+ }
+
+ const GoASTExpr *
+ GetLow() const
+ {
+ return m_low_up.get();
+ }
+ void
+ SetLow(GoASTExpr *low)
+ {
+ m_low_up.reset(low);
+ }
+
+ const GoASTExpr *
+ GetHigh() const
+ {
+ return m_high_up.get();
+ }
+ void
+ SetHigh(GoASTExpr *high)
+ {
+ m_high_up.reset(high);
+ }
+
+ const GoASTExpr *
+ GetMax() const
+ {
+ return m_max_up.get();
+ }
+ void
+ SetMax(GoASTExpr *max)
+ {
+ m_max_up.reset(max);
+ }
+
+ bool
+ GetSlice3() const
+ {
+ return m_slice3;
+ }
+ void
+ SetSlice3(bool slice3)
+ {
+ m_slice3 = slice3;
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTExpr> m_x_up;
+ std::unique_ptr<GoASTExpr> m_low_up;
+ std::unique_ptr<GoASTExpr> m_high_up;
+ std::unique_ptr<GoASTExpr> m_max_up;
+ bool m_slice3;
+
+ GoASTSliceExpr(const GoASTSliceExpr &) = delete;
+ const GoASTSliceExpr &operator=(const GoASTSliceExpr &) = delete;
+};
+
+class GoASTStarExpr : public GoASTExpr
+{
+ public:
+ explicit GoASTStarExpr(GoASTExpr *x) : GoASTExpr(eStarExpr), m_x_up(x) {}
+ ~GoASTStarExpr() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "StarExpr";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eStarExpr;
+ }
+
+ const GoASTExpr *
+ GetX() const
+ {
+ return m_x_up.get();
+ }
+ void
+ SetX(GoASTExpr *x)
+ {
+ m_x_up.reset(x);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTExpr> m_x_up;
+
+ GoASTStarExpr(const GoASTStarExpr &) = delete;
+ const GoASTStarExpr &operator=(const GoASTStarExpr &) = delete;
+};
+
+class GoASTStructType : public GoASTExpr
+{
+ public:
+ explicit GoASTStructType(GoASTFieldList *fields) : GoASTExpr(eStructType), m_fields_up(fields) {}
+ ~GoASTStructType() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "StructType";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eStructType;
+ }
+
+ const GoASTFieldList *
+ GetFields() const
+ {
+ return m_fields_up.get();
+ }
+ void
+ SetFields(GoASTFieldList *fields)
+ {
+ m_fields_up.reset(fields);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTFieldList> m_fields_up;
+
+ GoASTStructType(const GoASTStructType &) = delete;
+ const GoASTStructType &operator=(const GoASTStructType &) = delete;
+};
+
+class GoASTSwitchStmt : public GoASTStmt
+{
+ public:
+ GoASTSwitchStmt(GoASTStmt *init, GoASTExpr *tag, GoASTBlockStmt *body) : GoASTStmt(eSwitchStmt), m_init_up(init), m_tag_up(tag), m_body_up(body) {}
+ ~GoASTSwitchStmt() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "SwitchStmt";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eSwitchStmt;
+ }
+
+ const GoASTStmt *
+ GetInit() const
+ {
+ return m_init_up.get();
+ }
+ void
+ SetInit(GoASTStmt *init)
+ {
+ m_init_up.reset(init);
+ }
+
+ const GoASTExpr *
+ GetTag() const
+ {
+ return m_tag_up.get();
+ }
+ void
+ SetTag(GoASTExpr *tag)
+ {
+ m_tag_up.reset(tag);
+ }
+
+ const GoASTBlockStmt *
+ GetBody() const
+ {
+ return m_body_up.get();
+ }
+ void
+ SetBody(GoASTBlockStmt *body)
+ {
+ m_body_up.reset(body);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTStmt> m_init_up;
+ std::unique_ptr<GoASTExpr> m_tag_up;
+ std::unique_ptr<GoASTBlockStmt> m_body_up;
+
+ GoASTSwitchStmt(const GoASTSwitchStmt &) = delete;
+ const GoASTSwitchStmt &operator=(const GoASTSwitchStmt &) = delete;
+};
+
+class GoASTTypeAssertExpr : public GoASTExpr
+{
+ public:
+ GoASTTypeAssertExpr(GoASTExpr *x, GoASTExpr *type) : GoASTExpr(eTypeAssertExpr), m_x_up(x), m_type_up(type) {}
+ ~GoASTTypeAssertExpr() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "TypeAssertExpr";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eTypeAssertExpr;
+ }
+
+ const GoASTExpr *
+ GetX() const
+ {
+ return m_x_up.get();
+ }
+ void
+ SetX(GoASTExpr *x)
+ {
+ m_x_up.reset(x);
+ }
+
+ const GoASTExpr *
+ GetType() const
+ {
+ return m_type_up.get();
+ }
+ void
+ SetType(GoASTExpr *type)
+ {
+ m_type_up.reset(type);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTExpr> m_x_up;
+ std::unique_ptr<GoASTExpr> m_type_up;
+
+ GoASTTypeAssertExpr(const GoASTTypeAssertExpr &) = delete;
+ const GoASTTypeAssertExpr &operator=(const GoASTTypeAssertExpr &) = delete;
+};
+
+class GoASTTypeSpec : public GoASTSpec
+{
+ public:
+ GoASTTypeSpec(GoASTIdent *name, GoASTExpr *type) : GoASTSpec(eTypeSpec), m_name_up(name), m_type_up(type) {}
+ ~GoASTTypeSpec() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "TypeSpec";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eTypeSpec;
+ }
+
+ const GoASTIdent *
+ GetName() const
+ {
+ return m_name_up.get();
+ }
+ void
+ SetName(GoASTIdent *name)
+ {
+ m_name_up.reset(name);
+ }
+
+ const GoASTExpr *
+ GetType() const
+ {
+ return m_type_up.get();
+ }
+ void
+ SetType(GoASTExpr *type)
+ {
+ m_type_up.reset(type);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTIdent> m_name_up;
+ std::unique_ptr<GoASTExpr> m_type_up;
+
+ GoASTTypeSpec(const GoASTTypeSpec &) = delete;
+ const GoASTTypeSpec &operator=(const GoASTTypeSpec &) = delete;
+};
+
+class GoASTTypeSwitchStmt : public GoASTStmt
+{
+ public:
+ GoASTTypeSwitchStmt(GoASTStmt *init, GoASTStmt *assign, GoASTBlockStmt *body) : GoASTStmt(eTypeSwitchStmt), m_init_up(init), m_assign_up(assign), m_body_up(body) {}
+ ~GoASTTypeSwitchStmt() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "TypeSwitchStmt";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eTypeSwitchStmt;
+ }
+
+ const GoASTStmt *
+ GetInit() const
+ {
+ return m_init_up.get();
+ }
+ void
+ SetInit(GoASTStmt *init)
+ {
+ m_init_up.reset(init);
+ }
+
+ const GoASTStmt *
+ GetAssign() const
+ {
+ return m_assign_up.get();
+ }
+ void
+ SetAssign(GoASTStmt *assign)
+ {
+ m_assign_up.reset(assign);
+ }
+
+ const GoASTBlockStmt *
+ GetBody() const
+ {
+ return m_body_up.get();
+ }
+ void
+ SetBody(GoASTBlockStmt *body)
+ {
+ m_body_up.reset(body);
+ }
+
+ private:
+ friend class GoASTNode;
+ std::unique_ptr<GoASTStmt> m_init_up;
+ std::unique_ptr<GoASTStmt> m_assign_up;
+ std::unique_ptr<GoASTBlockStmt> m_body_up;
+
+ GoASTTypeSwitchStmt(const GoASTTypeSwitchStmt &) = delete;
+ const GoASTTypeSwitchStmt &operator=(const GoASTTypeSwitchStmt &) = delete;
+};
+
+class GoASTUnaryExpr : public GoASTExpr
+{
+ public:
+ GoASTUnaryExpr(TokenType op, GoASTExpr *x) : GoASTExpr(eUnaryExpr), m_op(op), m_x_up(x) {}
+ ~GoASTUnaryExpr() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "UnaryExpr";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eUnaryExpr;
+ }
+
+ TokenType
+ GetOp() const
+ {
+ return m_op;
+ }
+ void
+ SetOp(TokenType op)
+ {
+ m_op = op;
+ }
+
+ const GoASTExpr *
+ GetX() const
+ {
+ return m_x_up.get();
+ }
+ void
+ SetX(GoASTExpr *x)
+ {
+ m_x_up.reset(x);
+ }
+
+ private:
+ friend class GoASTNode;
+ TokenType m_op;
+ std::unique_ptr<GoASTExpr> m_x_up;
+
+ GoASTUnaryExpr(const GoASTUnaryExpr &) = delete;
+ const GoASTUnaryExpr &operator=(const GoASTUnaryExpr &) = delete;
+};
+
+class GoASTValueSpec : public GoASTSpec
+{
+ public:
+ GoASTValueSpec() : GoASTSpec(eValueSpec) {}
+ ~GoASTValueSpec() override = default;
+
+ const char *
+ GetKindName() const override
+ {
+ return "ValueSpec";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == eValueSpec;
+ }
+
+ size_t
+ NumNames() const
+ {
+ return m_names.size();
+ }
+ const GoASTIdent *
+ GetNames(int i) const
+ {
+ return m_names[i].get();
+ }
+ void
+ AddNames(GoASTIdent *names)
+ {
+ m_names.push_back(std::unique_ptr<GoASTIdent>(names));
+ }
+
+ const GoASTExpr *
+ GetType() const
+ {
+ return m_type_up.get();
+ }
+ void
+ SetType(GoASTExpr *type)
+ {
+ m_type_up.reset(type);
+ }
+
+ size_t
+ NumValues() const
+ {
+ return m_values.size();
+ }
+ const GoASTExpr *
+ GetValues(int i) const
+ {
+ return m_values[i].get();
+ }
+ void
+ AddValues(GoASTExpr *values)
+ {
+ m_values.push_back(std::unique_ptr<GoASTExpr>(values));
+ }
+
+ private:
+ friend class GoASTNode;
+ std::vector<std::unique_ptr<GoASTIdent> > m_names;
+ std::unique_ptr<GoASTExpr> m_type_up;
+ std::vector<std::unique_ptr<GoASTExpr> > m_values;
+
+ GoASTValueSpec(const GoASTValueSpec &) = delete;
+ const GoASTValueSpec &operator=(const GoASTValueSpec &) = delete;
+};
+
+
+template <typename R, typename V>
+R GoASTDecl::Visit(V* v) const
+{
+ switch(GetKind())
+ {
+ case eBadDecl:
+ return v->VisitBadDecl(llvm::cast<const GoASTBadDecl>(this));
+ case eFuncDecl:
+ return v->VisitFuncDecl(llvm::cast<const GoASTFuncDecl>(this));
+ case eGenDecl:
+ return v->VisitGenDecl(llvm::cast<const GoASTGenDecl>(this));
+ default:
+ assert(false && "Invalid kind");
+ }
+}
+
+template <typename R, typename V>
+R GoASTExpr::Visit(V* v) const
+{
+ switch(GetKind())
+ {
+ case eArrayType:
+ return v->VisitArrayType(llvm::cast<const GoASTArrayType>(this));
+ case eBadExpr:
+ return v->VisitBadExpr(llvm::cast<const GoASTBadExpr>(this));
+ case eBasicLit:
+ return v->VisitBasicLit(llvm::cast<const GoASTBasicLit>(this));
+ case eBinaryExpr:
+ return v->VisitBinaryExpr(llvm::cast<const GoASTBinaryExpr>(this));
+ case eIdent:
+ return v->VisitIdent(llvm::cast<const GoASTIdent>(this));
+ case eCallExpr:
+ return v->VisitCallExpr(llvm::cast<const GoASTCallExpr>(this));
+ case eChanType:
+ return v->VisitChanType(llvm::cast<const GoASTChanType>(this));
+ case eCompositeLit:
+ return v->VisitCompositeLit(llvm::cast<const GoASTCompositeLit>(this));
+ case eEllipsis:
+ return v->VisitEllipsis(llvm::cast<const GoASTEllipsis>(this));
+ case eFuncType:
+ return v->VisitFuncType(llvm::cast<const GoASTFuncType>(this));
+ case eFuncLit:
+ return v->VisitFuncLit(llvm::cast<const GoASTFuncLit>(this));
+ case eIndexExpr:
+ return v->VisitIndexExpr(llvm::cast<const GoASTIndexExpr>(this));
+ case eInterfaceType:
+ return v->VisitInterfaceType(llvm::cast<const GoASTInterfaceType>(this));
+ case eKeyValueExpr:
+ return v->VisitKeyValueExpr(llvm::cast<const GoASTKeyValueExpr>(this));
+ case eMapType:
+ return v->VisitMapType(llvm::cast<const GoASTMapType>(this));
+ case eParenExpr:
+ return v->VisitParenExpr(llvm::cast<const GoASTParenExpr>(this));
+ case eSelectorExpr:
+ return v->VisitSelectorExpr(llvm::cast<const GoASTSelectorExpr>(this));
+ case eSliceExpr:
+ return v->VisitSliceExpr(llvm::cast<const GoASTSliceExpr>(this));
+ case eStarExpr:
+ return v->VisitStarExpr(llvm::cast<const GoASTStarExpr>(this));
+ case eStructType:
+ return v->VisitStructType(llvm::cast<const GoASTStructType>(this));
+ case eTypeAssertExpr:
+ return v->VisitTypeAssertExpr(llvm::cast<const GoASTTypeAssertExpr>(this));
+ case eUnaryExpr:
+ return v->VisitUnaryExpr(llvm::cast<const GoASTUnaryExpr>(this));
+ default:
+ assert(false && "Invalid kind");
+ }
+}
+
+template <typename R, typename V>
+R GoASTSpec::Visit(V* v) const
+{
+ switch(GetKind())
+ {
+ case eImportSpec:
+ return v->VisitImportSpec(llvm::cast<const GoASTImportSpec>(this));
+ case eTypeSpec:
+ return v->VisitTypeSpec(llvm::cast<const GoASTTypeSpec>(this));
+ case eValueSpec:
+ return v->VisitValueSpec(llvm::cast<const GoASTValueSpec>(this));
+ default:
+ assert(false && "Invalid kind");
+ }
+}
+
+template <typename R, typename V>
+R GoASTStmt::Visit(V* v) const
+{
+ switch(GetKind())
+ {
+ case eAssignStmt:
+ return v->VisitAssignStmt(llvm::cast<const GoASTAssignStmt>(this));
+ case eBadStmt:
+ return v->VisitBadStmt(llvm::cast<const GoASTBadStmt>(this));
+ case eBlockStmt:
+ return v->VisitBlockStmt(llvm::cast<const GoASTBlockStmt>(this));
+ case eBranchStmt:
+ return v->VisitBranchStmt(llvm::cast<const GoASTBranchStmt>(this));
+ case eCaseClause:
+ return v->VisitCaseClause(llvm::cast<const GoASTCaseClause>(this));
+ case eCommClause:
+ return v->VisitCommClause(llvm::cast<const GoASTCommClause>(this));
+ case eDeclStmt:
+ return v->VisitDeclStmt(llvm::cast<const GoASTDeclStmt>(this));
+ case eDeferStmt:
+ return v->VisitDeferStmt(llvm::cast<const GoASTDeferStmt>(this));
+ case eEmptyStmt:
+ return v->VisitEmptyStmt(llvm::cast<const GoASTEmptyStmt>(this));
+ case eExprStmt:
+ return v->VisitExprStmt(llvm::cast<const GoASTExprStmt>(this));
+ case eForStmt:
+ return v->VisitForStmt(llvm::cast<const GoASTForStmt>(this));
+ case eGoStmt:
+ return v->VisitGoStmt(llvm::cast<const GoASTGoStmt>(this));
+ case eIfStmt:
+ return v->VisitIfStmt(llvm::cast<const GoASTIfStmt>(this));
+ case eIncDecStmt:
+ return v->VisitIncDecStmt(llvm::cast<const GoASTIncDecStmt>(this));
+ case eLabeledStmt:
+ return v->VisitLabeledStmt(llvm::cast<const GoASTLabeledStmt>(this));
+ case eRangeStmt:
+ return v->VisitRangeStmt(llvm::cast<const GoASTRangeStmt>(this));
+ case eReturnStmt:
+ return v->VisitReturnStmt(llvm::cast<const GoASTReturnStmt>(this));
+ case eSelectStmt:
+ return v->VisitSelectStmt(llvm::cast<const GoASTSelectStmt>(this));
+ case eSendStmt:
+ return v->VisitSendStmt(llvm::cast<const GoASTSendStmt>(this));
+ case eSwitchStmt:
+ return v->VisitSwitchStmt(llvm::cast<const GoASTSwitchStmt>(this));
+ case eTypeSwitchStmt:
+ return v->VisitTypeSwitchStmt(llvm::cast<const GoASTTypeSwitchStmt>(this));
+ default:
+ assert(false && "Invalid kind");
+ }
+}
+
+template <typename V>
+void GoASTNode::WalkChildren(V &v)
+{
+ switch (m_kind)
+ {
+
+
+ case eArrayType:
+ {
+ GoASTArrayType *n = llvm::cast<GoASTArrayType>(this);
+ (void)n;
+ v(n->m_len_up.get());
+ v(n->m_elt_up.get());
+ return;
+ }
+ case eAssignStmt:
+ {
+ GoASTAssignStmt *n = llvm::cast<GoASTAssignStmt>(this);
+ (void)n;
+ for (auto& e : n->m_lhs) { v(e.get()); }
+ for (auto& e : n->m_rhs) { v(e.get()); }
+ return;
+ }
+ case eBasicLit:
+ {
+ GoASTBasicLit *n = llvm::cast<GoASTBasicLit>(this);
+ (void)n;
+ return;
+ }
+ case eBinaryExpr:
+ {
+ GoASTBinaryExpr *n = llvm::cast<GoASTBinaryExpr>(this);
+ (void)n;
+ v(n->m_x_up.get());
+ v(n->m_y_up.get());
+ return;
+ }
+ case eBlockStmt:
+ {
+ GoASTBlockStmt *n = llvm::cast<GoASTBlockStmt>(this);
+ (void)n;
+ for (auto& e : n->m_list) { v(e.get()); }
+ return;
+ }
+ case eIdent:
+ {
+ GoASTIdent *n = llvm::cast<GoASTIdent>(this);
+ (void)n;
+ return;
+ }
+ case eBranchStmt:
+ {
+ GoASTBranchStmt *n = llvm::cast<GoASTBranchStmt>(this);
+ (void)n;
+ v(n->m_label_up.get());
+ return;
+ }
+ case eCallExpr:
+ {
+ GoASTCallExpr *n = llvm::cast<GoASTCallExpr>(this);
+ (void)n;
+ v(n->m_fun_up.get());
+ for (auto& e : n->m_args) { v(e.get()); }
+ return;
+ }
+ case eCaseClause:
+ {
+ GoASTCaseClause *n = llvm::cast<GoASTCaseClause>(this);
+ (void)n;
+ for (auto& e : n->m_list) { v(e.get()); }
+ for (auto& e : n->m_body) { v(e.get()); }
+ return;
+ }
+ case eChanType:
+ {
+ GoASTChanType *n = llvm::cast<GoASTChanType>(this);
+ (void)n;
+ v(n->m_value_up.get());
+ return;
+ }
+ case eCommClause:
+ {
+ GoASTCommClause *n = llvm::cast<GoASTCommClause>(this);
+ (void)n;
+ v(n->m_comm_up.get());
+ for (auto& e : n->m_body) { v(e.get()); }
+ return;
+ }
+ case eCompositeLit:
+ {
+ GoASTCompositeLit *n = llvm::cast<GoASTCompositeLit>(this);
+ (void)n;
+ v(n->m_type_up.get());
+ for (auto& e : n->m_elts) { v(e.get()); }
+ return;
+ }
+ case eDeclStmt:
+ {
+ GoASTDeclStmt *n = llvm::cast<GoASTDeclStmt>(this);
+ (void)n;
+ v(n->m_decl_up.get());
+ return;
+ }
+ case eDeferStmt:
+ {
+ GoASTDeferStmt *n = llvm::cast<GoASTDeferStmt>(this);
+ (void)n;
+ v(n->m_call_up.get());
+ return;
+ }
+ case eEllipsis:
+ {
+ GoASTEllipsis *n = llvm::cast<GoASTEllipsis>(this);
+ (void)n;
+ v(n->m_elt_up.get());
+ return;
+ }
+ case eExprStmt:
+ {
+ GoASTExprStmt *n = llvm::cast<GoASTExprStmt>(this);
+ (void)n;
+ v(n->m_x_up.get());
+ return;
+ }
+ case eField:
+ {
+ GoASTField *n = llvm::cast<GoASTField>(this);
+ (void)n;
+ for (auto& e : n->m_names) { v(e.get()); }
+ v(n->m_type_up.get());
+ v(n->m_tag_up.get());
+ return;
+ }
+ case eFieldList:
+ {
+ GoASTFieldList *n = llvm::cast<GoASTFieldList>(this);
+ (void)n;
+ for (auto& e : n->m_list) { v(e.get()); }
+ return;
+ }
+ case eForStmt:
+ {
+ GoASTForStmt *n = llvm::cast<GoASTForStmt>(this);
+ (void)n;
+ v(n->m_init_up.get());
+ v(n->m_cond_up.get());
+ v(n->m_post_up.get());
+ v(n->m_body_up.get());
+ return;
+ }
+ case eFuncType:
+ {
+ GoASTFuncType *n = llvm::cast<GoASTFuncType>(this);
+ (void)n;
+ v(n->m_params_up.get());
+ v(n->m_results_up.get());
+ return;
+ }
+ case eFuncDecl:
+ {
+ GoASTFuncDecl *n = llvm::cast<GoASTFuncDecl>(this);
+ (void)n;
+ v(n->m_recv_up.get());
+ v(n->m_name_up.get());
+ v(n->m_type_up.get());
+ v(n->m_body_up.get());
+ return;
+ }
+ case eFuncLit:
+ {
+ GoASTFuncLit *n = llvm::cast<GoASTFuncLit>(this);
+ (void)n;
+ v(n->m_type_up.get());
+ v(n->m_body_up.get());
+ return;
+ }
+ case eGenDecl:
+ {
+ GoASTGenDecl *n = llvm::cast<GoASTGenDecl>(this);
+ (void)n;
+ for (auto& e : n->m_specs) { v(e.get()); }
+ return;
+ }
+ case eGoStmt:
+ {
+ GoASTGoStmt *n = llvm::cast<GoASTGoStmt>(this);
+ (void)n;
+ v(n->m_call_up.get());
+ return;
+ }
+ case eIfStmt:
+ {
+ GoASTIfStmt *n = llvm::cast<GoASTIfStmt>(this);
+ (void)n;
+ v(n->m_init_up.get());
+ v(n->m_cond_up.get());
+ v(n->m_body_up.get());
+ v(n->m_els_up.get());
+ return;
+ }
+ case eImportSpec:
+ {
+ GoASTImportSpec *n = llvm::cast<GoASTImportSpec>(this);
+ (void)n;
+ v(n->m_name_up.get());
+ v(n->m_path_up.get());
+ return;
+ }
+ case eIncDecStmt:
+ {
+ GoASTIncDecStmt *n = llvm::cast<GoASTIncDecStmt>(this);
+ (void)n;
+ v(n->m_x_up.get());
+ return;
+ }
+ case eIndexExpr:
+ {
+ GoASTIndexExpr *n = llvm::cast<GoASTIndexExpr>(this);
+ (void)n;
+ v(n->m_x_up.get());
+ v(n->m_index_up.get());
+ return;
+ }
+ case eInterfaceType:
+ {
+ GoASTInterfaceType *n = llvm::cast<GoASTInterfaceType>(this);
+ (void)n;
+ v(n->m_methods_up.get());
+ return;
+ }
+ case eKeyValueExpr:
+ {
+ GoASTKeyValueExpr *n = llvm::cast<GoASTKeyValueExpr>(this);
+ (void)n;
+ v(n->m_key_up.get());
+ v(n->m_value_up.get());
+ return;
+ }
+ case eLabeledStmt:
+ {
+ GoASTLabeledStmt *n = llvm::cast<GoASTLabeledStmt>(this);
+ (void)n;
+ v(n->m_label_up.get());
+ v(n->m_stmt_up.get());
+ return;
+ }
+ case eMapType:
+ {
+ GoASTMapType *n = llvm::cast<GoASTMapType>(this);
+ (void)n;
+ v(n->m_key_up.get());
+ v(n->m_value_up.get());
+ return;
+ }
+ case eParenExpr:
+ {
+ GoASTParenExpr *n = llvm::cast<GoASTParenExpr>(this);
+ (void)n;
+ v(n->m_x_up.get());
+ return;
+ }
+ case eRangeStmt:
+ {
+ GoASTRangeStmt *n = llvm::cast<GoASTRangeStmt>(this);
+ (void)n;
+ v(n->m_key_up.get());
+ v(n->m_value_up.get());
+ v(n->m_x_up.get());
+ v(n->m_body_up.get());
+ return;
+ }
+ case eReturnStmt:
+ {
+ GoASTReturnStmt *n = llvm::cast<GoASTReturnStmt>(this);
+ (void)n;
+ for (auto& e : n->m_results) { v(e.get()); }
+ return;
+ }
+ case eSelectStmt:
+ {
+ GoASTSelectStmt *n = llvm::cast<GoASTSelectStmt>(this);
+ (void)n;
+ v(n->m_body_up.get());
+ return;
+ }
+ case eSelectorExpr:
+ {
+ GoASTSelectorExpr *n = llvm::cast<GoASTSelectorExpr>(this);
+ (void)n;
+ v(n->m_x_up.get());
+ v(n->m_sel_up.get());
+ return;
+ }
+ case eSendStmt:
+ {
+ GoASTSendStmt *n = llvm::cast<GoASTSendStmt>(this);
+ (void)n;
+ v(n->m_chan_up.get());
+ v(n->m_value_up.get());
+ return;
+ }
+ case eSliceExpr:
+ {
+ GoASTSliceExpr *n = llvm::cast<GoASTSliceExpr>(this);
+ (void)n;
+ v(n->m_x_up.get());
+ v(n->m_low_up.get());
+ v(n->m_high_up.get());
+ v(n->m_max_up.get());
+ return;
+ }
+ case eStarExpr:
+ {
+ GoASTStarExpr *n = llvm::cast<GoASTStarExpr>(this);
+ (void)n;
+ v(n->m_x_up.get());
+ return;
+ }
+ case eStructType:
+ {
+ GoASTStructType *n = llvm::cast<GoASTStructType>(this);
+ (void)n;
+ v(n->m_fields_up.get());
+ return;
+ }
+ case eSwitchStmt:
+ {
+ GoASTSwitchStmt *n = llvm::cast<GoASTSwitchStmt>(this);
+ (void)n;
+ v(n->m_init_up.get());
+ v(n->m_tag_up.get());
+ v(n->m_body_up.get());
+ return;
+ }
+ case eTypeAssertExpr:
+ {
+ GoASTTypeAssertExpr *n = llvm::cast<GoASTTypeAssertExpr>(this);
+ (void)n;
+ v(n->m_x_up.get());
+ v(n->m_type_up.get());
+ return;
+ }
+ case eTypeSpec:
+ {
+ GoASTTypeSpec *n = llvm::cast<GoASTTypeSpec>(this);
+ (void)n;
+ v(n->m_name_up.get());
+ v(n->m_type_up.get());
+ return;
+ }
+ case eTypeSwitchStmt:
+ {
+ GoASTTypeSwitchStmt *n = llvm::cast<GoASTTypeSwitchStmt>(this);
+ (void)n;
+ v(n->m_init_up.get());
+ v(n->m_assign_up.get());
+ v(n->m_body_up.get());
+ return;
+ }
+ case eUnaryExpr:
+ {
+ GoASTUnaryExpr *n = llvm::cast<GoASTUnaryExpr>(this);
+ (void)n;
+ v(n->m_x_up.get());
+ return;
+ }
+ case eValueSpec:
+ {
+ GoASTValueSpec *n = llvm::cast<GoASTValueSpec>(this);
+ (void)n;
+ for (auto& e : n->m_names) { v(e.get()); }
+ v(n->m_type_up.get());
+ for (auto& e : n->m_values) { v(e.get()); }
+ return;
+ }
+
+ case eEmptyStmt:
+ case eBadDecl:
+ case eBadExpr:
+ case eBadStmt:
+ break;
+ }
+}
+
+} // namespace lldb_private
+
+#endif
+
diff --git a/source/Plugins/ExpressionParser/Go/GoLexer.cpp b/source/Plugins/ExpressionParser/Go/GoLexer.cpp
new file mode 100644
index 0000000000000..6de0f5619ca8c
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Go/GoLexer.cpp
@@ -0,0 +1,402 @@
+//===-- GoLexer.cpp ---------------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <string.h>
+
+#include "GoLexer.h"
+
+using namespace lldb_private;
+
+llvm::StringMap<GoLexer::TokenType> *GoLexer::m_keywords;
+
+GoLexer::GoLexer(const char *src) : m_src(src), m_end(src + strlen(src)), m_last_token(TOK_INVALID, "")
+{
+}
+
+bool
+GoLexer::SkipWhitespace()
+{
+ bool saw_newline = false;
+ for (; m_src < m_end; ++m_src)
+ {
+ if (*m_src == '\n')
+ saw_newline = true;
+ if (*m_src == '/' && !SkipComment())
+ return saw_newline;
+ else if (!IsWhitespace(*m_src))
+ return saw_newline;
+ }
+ return saw_newline;
+}
+
+bool
+GoLexer::SkipComment()
+{
+ if (m_src[0] == '/' && m_src[1] == '/')
+ {
+ for (const char *c = m_src + 2; c < m_end; ++c)
+ {
+ if (*c == '\n')
+ {
+ m_src = c - 1;
+ return true;
+ }
+ }
+ return true;
+ }
+ else if (m_src[0] == '/' && m_src[1] == '*')
+ {
+ for (const char *c = m_src + 2; c < m_end; ++c)
+ {
+ if (c[0] == '*' && c[1] == '/')
+ {
+ m_src = c + 1;
+ return true;
+ }
+ }
+ }
+ return false;
+}
+
+const GoLexer::Token &
+GoLexer::Lex()
+{
+ bool newline = SkipWhitespace();
+ const char *start = m_src;
+ m_last_token.m_type = InternalLex(newline);
+ m_last_token.m_value = llvm::StringRef(start, m_src - start);
+ return m_last_token;
+}
+
+GoLexer::TokenType
+GoLexer::InternalLex(bool newline)
+{
+ if (m_src >= m_end)
+ {
+ return TOK_EOF;
+ }
+ if (newline)
+ {
+ switch (m_last_token.m_type)
+ {
+ case TOK_IDENTIFIER:
+ case LIT_FLOAT:
+ case LIT_IMAGINARY:
+ case LIT_INTEGER:
+ case LIT_RUNE:
+ case LIT_STRING:
+ case KEYWORD_BREAK:
+ case KEYWORD_CONTINUE:
+ case KEYWORD_FALLTHROUGH:
+ case KEYWORD_RETURN:
+ case OP_PLUS_PLUS:
+ case OP_MINUS_MINUS:
+ case OP_RPAREN:
+ case OP_RBRACK:
+ case OP_RBRACE:
+ return OP_SEMICOLON;
+ default:
+ break;
+ }
+ }
+ char c = *m_src;
+ switch (c)
+ {
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ case '8':
+ case '9':
+ return DoNumber();
+ case '+':
+ case '-':
+ case '*':
+ case '/':
+ case '%':
+ case '&':
+ case '|':
+ case '^':
+ case '<':
+ case '>':
+ case '!':
+ case ':':
+ case ';':
+ case '(':
+ case ')':
+ case '[':
+ case ']':
+ case '{':
+ case '}':
+ case ',':
+ case '=':
+ return DoOperator();
+ case '.':
+ if (IsDecimal(m_src[1]))
+ return DoNumber();
+ return DoOperator();
+ case '$':
+ // For lldb persistent vars.
+ return DoIdent();
+ case '"':
+ case '`':
+ return DoString();
+ case '\'':
+ return DoRune();
+ default:
+ break;
+ }
+ if (IsLetterOrDigit(c))
+ return DoIdent();
+ ++m_src;
+ return TOK_INVALID;
+}
+
+GoLexer::TokenType
+GoLexer::DoOperator()
+{
+ TokenType t = TOK_INVALID;
+ if (m_end - m_src > 2)
+ {
+ t = LookupKeyword(llvm::StringRef(m_src, 3));
+ if (t != TOK_INVALID)
+ m_src += 3;
+ }
+ if (t == TOK_INVALID && m_end - m_src > 1)
+ {
+ t = LookupKeyword(llvm::StringRef(m_src, 2));
+ if (t != TOK_INVALID)
+ m_src += 2;
+ }
+ if (t == TOK_INVALID)
+ {
+ t = LookupKeyword(llvm::StringRef(m_src, 1));
+ ++m_src;
+ }
+ return t;
+}
+
+GoLexer::TokenType
+GoLexer::DoIdent()
+{
+ const char *start = m_src++;
+ while (m_src < m_end && IsLetterOrDigit(*m_src))
+ {
+ ++m_src;
+ }
+ TokenType kw = LookupKeyword(llvm::StringRef(start, m_src - start));
+ if (kw != TOK_INVALID)
+ return kw;
+ return TOK_IDENTIFIER;
+}
+
+GoLexer::TokenType
+GoLexer::DoNumber()
+{
+ if (m_src[0] == '0' && (m_src[1] == 'x' || m_src[1] == 'X'))
+ {
+ m_src += 2;
+ while (IsHexChar(*m_src))
+ ++m_src;
+ return LIT_INTEGER;
+ }
+ bool dot_ok = true;
+ bool e_ok = true;
+ while (true)
+ {
+ while (IsDecimal(*m_src))
+ ++m_src;
+ switch (*m_src)
+ {
+ case 'i':
+ ++m_src;
+ return LIT_IMAGINARY;
+ case '.':
+ if (!dot_ok)
+ return LIT_FLOAT;
+ ++m_src;
+ dot_ok = false;
+ break;
+ case 'e':
+ case 'E':
+ if (!e_ok)
+ return LIT_FLOAT;
+ dot_ok = e_ok = false;
+ ++m_src;
+ if (*m_src == '+' || *m_src == '-')
+ ++m_src;
+ break;
+ default:
+ if (dot_ok)
+ return LIT_INTEGER;
+ return LIT_FLOAT;
+ }
+ }
+}
+
+GoLexer::TokenType
+GoLexer::DoRune()
+{
+ while (++m_src < m_end)
+ {
+ switch (*m_src)
+ {
+ case '\'':
+ ++m_src;
+ return LIT_RUNE;
+ case '\n':
+ return TOK_INVALID;
+ case '\\':
+ if (m_src[1] == '\n')
+ return TOK_INVALID;
+ ++m_src;
+ }
+ }
+ return TOK_INVALID;
+}
+
+GoLexer::TokenType
+GoLexer::DoString()
+{
+ if (*m_src == '`')
+ {
+ while (++m_src < m_end)
+ {
+ if (*m_src == '`')
+ {
+ ++m_src;
+ return LIT_STRING;
+ }
+ }
+ return TOK_INVALID;
+ }
+ while (++m_src < m_end)
+ {
+ switch (*m_src)
+ {
+ case '"':
+ ++m_src;
+ return LIT_STRING;
+ case '\n':
+ return TOK_INVALID;
+ case '\\':
+ if (m_src[1] == '\n')
+ return TOK_INVALID;
+ ++m_src;
+ }
+ }
+ return TOK_INVALID;
+}
+
+GoLexer::TokenType
+GoLexer::LookupKeyword(llvm::StringRef id)
+{
+ if (m_keywords == nullptr)
+ m_keywords = InitKeywords();
+ const auto &it = m_keywords->find(id);
+ if (it == m_keywords->end())
+ return TOK_INVALID;
+ return it->second;
+}
+
+llvm::StringRef
+GoLexer::LookupToken(TokenType t)
+{
+ if (m_keywords == nullptr)
+ m_keywords = InitKeywords();
+ for (const auto &e : *m_keywords)
+ {
+ if (e.getValue() == t)
+ return e.getKey();
+ }
+ return "";
+}
+
+llvm::StringMap<GoLexer::TokenType> *
+GoLexer::InitKeywords()
+{
+ auto &result = *new llvm::StringMap<TokenType>(128);
+ result["break"] = KEYWORD_BREAK;
+ result["default"] = KEYWORD_DEFAULT;
+ result["func"] = KEYWORD_FUNC;
+ result["interface"] = KEYWORD_INTERFACE;
+ result["select"] = KEYWORD_SELECT;
+ result["case"] = KEYWORD_CASE;
+ result["defer"] = KEYWORD_DEFER;
+ result["go"] = KEYWORD_GO;
+ result["map"] = KEYWORD_MAP;
+ result["struct"] = KEYWORD_STRUCT;
+ result["chan"] = KEYWORD_CHAN;
+ result["else"] = KEYWORD_ELSE;
+ result["goto"] = KEYWORD_GOTO;
+ result["package"] = KEYWORD_PACKAGE;
+ result["switch"] = KEYWORD_SWITCH;
+ result["const"] = KEYWORD_CONST;
+ result["fallthrough"] = KEYWORD_FALLTHROUGH;
+ result["if"] = KEYWORD_IF;
+ result["range"] = KEYWORD_RANGE;
+ result["type"] = KEYWORD_TYPE;
+ result["continue"] = KEYWORD_CONTINUE;
+ result["for"] = KEYWORD_FOR;
+ result["import"] = KEYWORD_IMPORT;
+ result["return"] = KEYWORD_RETURN;
+ result["var"] = KEYWORD_VAR;
+ result["+"] = OP_PLUS;
+ result["-"] = OP_MINUS;
+ result["*"] = OP_STAR;
+ result["/"] = OP_SLASH;
+ result["%"] = OP_PERCENT;
+ result["&"] = OP_AMP;
+ result["|"] = OP_PIPE;
+ result["^"] = OP_CARET;
+ result["<<"] = OP_LSHIFT;
+ result[">>"] = OP_RSHIFT;
+ result["&^"] = OP_AMP_CARET;
+ result["+="] = OP_PLUS_EQ;
+ result["-="] = OP_MINUS_EQ;
+ result["*="] = OP_STAR_EQ;
+ result["/="] = OP_SLASH_EQ;
+ result["%="] = OP_PERCENT_EQ;
+ result["&="] = OP_AMP_EQ;
+ result["|="] = OP_PIPE_EQ;
+ result["^="] = OP_CARET_EQ;
+ result["<<="] = OP_LSHIFT_EQ;
+ result[">>="] = OP_RSHIFT_EQ;
+ result["&^="] = OP_AMP_CARET_EQ;
+ result["&&"] = OP_AMP_AMP;
+ result["||"] = OP_PIPE_PIPE;
+ result["<-"] = OP_LT_MINUS;
+ result["++"] = OP_PLUS_PLUS;
+ result["--"] = OP_MINUS_MINUS;
+ result["=="] = OP_EQ_EQ;
+ result["<"] = OP_LT;
+ result[">"] = OP_GT;
+ result["="] = OP_EQ;
+ result["!"] = OP_BANG;
+ result["!="] = OP_BANG_EQ;
+ result["<="] = OP_LT_EQ;
+ result[">="] = OP_GT_EQ;
+ result[":="] = OP_COLON_EQ;
+ result["..."] = OP_DOTS;
+ result["("] = OP_LPAREN;
+ result["["] = OP_LBRACK;
+ result["{"] = OP_LBRACE;
+ result[","] = OP_COMMA;
+ result["."] = OP_DOT;
+ result[")"] = OP_RPAREN;
+ result["]"] = OP_RBRACK;
+ result["}"] = OP_RBRACE;
+ result[";"] = OP_SEMICOLON;
+ result[":"] = OP_COLON;
+ return &result;
+}
diff --git a/source/Plugins/ExpressionParser/Go/GoLexer.h b/source/Plugins/ExpressionParser/Go/GoLexer.h
new file mode 100644
index 0000000000000..e8e1635bab771
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Go/GoLexer.h
@@ -0,0 +1,201 @@
+//===-- GoLexer.h -----------------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_GoLexer_h
+#define liblldb_GoLexer_h
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/StringMap.h"
+
+namespace lldb_private
+{
+
+class GoLexer
+{
+ public:
+ explicit GoLexer(const char *src);
+
+ enum TokenType
+ {
+ TOK_EOF,
+ TOK_INVALID,
+ TOK_IDENTIFIER,
+ LIT_INTEGER,
+ LIT_FLOAT,
+ LIT_IMAGINARY,
+ LIT_RUNE,
+ LIT_STRING,
+ KEYWORD_BREAK,
+ KEYWORD_DEFAULT,
+ KEYWORD_FUNC,
+ KEYWORD_INTERFACE,
+ KEYWORD_SELECT,
+ KEYWORD_CASE,
+ KEYWORD_DEFER,
+ KEYWORD_GO,
+ KEYWORD_MAP,
+ KEYWORD_STRUCT,
+ KEYWORD_CHAN,
+ KEYWORD_ELSE,
+ KEYWORD_GOTO,
+ KEYWORD_PACKAGE,
+ KEYWORD_SWITCH,
+ KEYWORD_CONST,
+ KEYWORD_FALLTHROUGH,
+ KEYWORD_IF,
+ KEYWORD_RANGE,
+ KEYWORD_TYPE,
+ KEYWORD_CONTINUE,
+ KEYWORD_FOR,
+ KEYWORD_IMPORT,
+ KEYWORD_RETURN,
+ KEYWORD_VAR,
+ OP_PLUS,
+ OP_MINUS,
+ OP_STAR,
+ OP_SLASH,
+ OP_PERCENT,
+ OP_AMP,
+ OP_PIPE,
+ OP_CARET,
+ OP_LSHIFT,
+ OP_RSHIFT,
+ OP_AMP_CARET,
+ OP_PLUS_EQ,
+ OP_MINUS_EQ,
+ OP_STAR_EQ,
+ OP_SLASH_EQ,
+ OP_PERCENT_EQ,
+ OP_AMP_EQ,
+ OP_PIPE_EQ,
+ OP_CARET_EQ,
+ OP_LSHIFT_EQ,
+ OP_RSHIFT_EQ,
+ OP_AMP_CARET_EQ,
+ OP_AMP_AMP,
+ OP_PIPE_PIPE,
+ OP_LT_MINUS,
+ OP_PLUS_PLUS,
+ OP_MINUS_MINUS,
+ OP_EQ_EQ,
+ OP_LT,
+ OP_GT,
+ OP_EQ,
+ OP_BANG,
+ OP_BANG_EQ,
+ OP_LT_EQ,
+ OP_GT_EQ,
+ OP_COLON_EQ,
+ OP_DOTS,
+ OP_LPAREN,
+ OP_LBRACK,
+ OP_LBRACE,
+ OP_COMMA,
+ OP_DOT,
+ OP_RPAREN,
+ OP_RBRACK,
+ OP_RBRACE,
+ OP_SEMICOLON,
+ OP_COLON,
+ };
+
+ struct Token
+ {
+ explicit Token(TokenType t, llvm::StringRef text) : m_type(t), m_value(text) {}
+ TokenType m_type;
+ llvm::StringRef m_value;
+ };
+
+ const Token &Lex();
+
+ size_t
+ BytesRemaining() const
+ {
+ return m_end - m_src;
+ }
+ llvm::StringRef
+ GetString(int len) const
+ {
+ return llvm::StringRef(m_src, len);
+ }
+
+ static TokenType LookupKeyword(llvm::StringRef id);
+ static llvm::StringRef LookupToken(TokenType t);
+
+ private:
+ bool
+ IsDecimal(char c)
+ {
+ return c >= '0' && c <= '9';
+ }
+ bool
+ IsHexChar(char c)
+ {
+ if (c >= '0' && c <= '9')
+ return true;
+ if (c >= 'A' && c <= 'F')
+ return true;
+ if (c >= 'a' && c <= 'f')
+ return true;
+ return false;
+ }
+ bool
+ IsLetterOrDigit(char c)
+ {
+ if (c >= 'a' && c <= 'z')
+ return true;
+ if (c >= 'A' && c <= 'Z')
+ return true;
+ if (c == '_')
+ return true;
+ if (c >= '0' && c <= '9')
+ return true;
+ // Treat all non-ascii chars as letters for simplicity.
+ return 0 != (c & 0x80);
+ }
+ bool
+ IsWhitespace(char c)
+ {
+ switch (c)
+ {
+ case ' ':
+ case '\t':
+ case '\r':
+ return true;
+ }
+ return false;
+ }
+
+ bool SkipWhitespace();
+ bool SkipComment();
+
+ TokenType InternalLex(bool newline);
+
+ TokenType DoOperator();
+
+ TokenType DoIdent();
+
+ TokenType DoNumber();
+
+ TokenType DoRune();
+
+ TokenType DoString();
+
+ static llvm::StringMap<TokenType> *InitKeywords();
+
+ static llvm::StringMap<TokenType> *m_keywords;
+
+ const char *m_src;
+ const char *m_end;
+ Token m_last_token;
+};
+
+} // namespace lldb_private
+
+#endif
diff --git a/source/Plugins/ExpressionParser/Go/GoParser.cpp b/source/Plugins/ExpressionParser/Go/GoParser.cpp
new file mode 100644
index 0000000000000..0f136f7e61dc8
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Go/GoParser.cpp
@@ -0,0 +1,1035 @@
+//===-- GoParser.cpp ---------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <vector>
+
+#include "GoParser.h"
+
+#include "lldb/Core/Error.h"
+#include "llvm/ADT/SmallString.h"
+#include "Plugins/ExpressionParser/Go/GoAST.h"
+
+using namespace lldb_private;
+using namespace lldb;
+
+namespace
+{
+llvm::StringRef
+DescribeToken(GoLexer::TokenType t)
+{
+ switch (t)
+ {
+ case GoLexer::TOK_EOF:
+ return "<eof>";
+ case GoLexer::TOK_IDENTIFIER:
+ return "identifier";
+ case GoLexer::LIT_FLOAT:
+ return "float";
+ case GoLexer::LIT_IMAGINARY:
+ return "imaginary";
+ case GoLexer::LIT_INTEGER:
+ return "integer";
+ case GoLexer::LIT_RUNE:
+ return "rune";
+ case GoLexer::LIT_STRING:
+ return "string";
+ default:
+ return GoLexer::LookupToken(t);
+ }
+}
+} // namespace
+
+class GoParser::Rule
+{
+ public:
+ Rule(llvm::StringRef name, GoParser *p) : m_name(name), m_parser(p), m_pos(p->m_pos) {}
+
+ std::nullptr_t
+ error()
+ {
+ if (!m_parser->m_failed)
+ {
+ // Set m_error in case this is the top level.
+ if (m_parser->m_last_tok == GoLexer::TOK_INVALID)
+ m_parser->m_error = m_parser->m_last;
+ else
+ m_parser->m_error = DescribeToken(m_parser->m_last_tok);
+ // And set m_last in case it isn't.
+ m_parser->m_last = m_name;
+ m_parser->m_last_tok = GoLexer::TOK_INVALID;
+ m_parser->m_pos = m_pos;
+ }
+ return nullptr;
+ }
+
+ private:
+ llvm::StringRef m_name;
+ GoParser *m_parser;
+ size_t m_pos;
+};
+
+GoParser::GoParser(const char *src) : m_lexer(src), m_pos(0), m_failed(false)
+{
+}
+
+GoASTStmt *
+GoParser::Statement()
+{
+ Rule r("Statement", this);
+ GoLexer::TokenType t = peek();
+ GoASTStmt *ret = nullptr;
+ switch (t)
+ {
+ case GoLexer::TOK_EOF:
+ case GoLexer::OP_SEMICOLON:
+ case GoLexer::OP_RPAREN:
+ case GoLexer::OP_RBRACE:
+ case GoLexer::TOK_INVALID:
+ return EmptyStmt();
+ case GoLexer::OP_LBRACE:
+ return Block();
+
+ /* TODO:
+ case GoLexer::KEYWORD_GO:
+ return GoStmt();
+ case GoLexer::KEYWORD_RETURN:
+ return ReturnStmt();
+ case GoLexer::KEYWORD_BREAK:
+ case GoLexer::KEYWORD_CONTINUE:
+ case GoLexer::KEYWORD_GOTO:
+ case GoLexer::KEYWORD_FALLTHROUGH:
+ return BranchStmt();
+ case GoLexer::KEYWORD_IF:
+ return IfStmt();
+ case GoLexer::KEYWORD_SWITCH:
+ return SwitchStmt();
+ case GoLexer::KEYWORD_SELECT:
+ return SelectStmt();
+ case GoLexer::KEYWORD_FOR:
+ return ForStmt();
+ case GoLexer::KEYWORD_DEFER:
+ return DeferStmt();
+ case GoLexer::KEYWORD_CONST:
+ case GoLexer::KEYWORD_TYPE:
+ case GoLexer::KEYWORD_VAR:
+ return DeclStmt();
+ case GoLexer::TOK_IDENTIFIER:
+ if ((ret = LabeledStmt()) ||
+ (ret = ShortVarDecl()))
+ {
+ return ret;
+ }
+*/
+ default:
+ break;
+ }
+ GoASTExpr *expr = Expression();
+ if (expr == nullptr)
+ return r.error();
+ if (/*(ret = SendStmt(expr)) ||*/
+ (ret = IncDecStmt(expr)) || (ret = Assignment(expr)) || (ret = ExpressionStmt(expr)))
+ {
+ return ret;
+ }
+ delete expr;
+ return r.error();
+}
+
+GoASTStmt *
+GoParser::ExpressionStmt(GoASTExpr *e)
+{
+ if (Semicolon())
+ return new GoASTExprStmt(e);
+ return nullptr;
+}
+
+GoASTStmt *
+GoParser::IncDecStmt(GoASTExpr *e)
+{
+ Rule r("IncDecStmt", this);
+ if (match(GoLexer::OP_PLUS_PLUS))
+ return Semicolon() ? new GoASTIncDecStmt(e, GoLexer::OP_PLUS_PLUS) : r.error();
+ if (match(GoLexer::OP_MINUS_MINUS))
+ return Semicolon() ? new GoASTIncDecStmt(e, GoLexer::OP_MINUS_MINUS) : r.error();
+ return nullptr;
+}
+
+GoASTStmt *
+GoParser::Assignment(lldb_private::GoASTExpr *e)
+{
+ Rule r("Assignment", this);
+ std::vector<std::unique_ptr<GoASTExpr>> lhs;
+ for (GoASTExpr *l = MoreExpressionList(); l; l = MoreExpressionList())
+ lhs.push_back(std::unique_ptr<GoASTExpr>(l));
+ switch (peek())
+ {
+ case GoLexer::OP_EQ:
+ case GoLexer::OP_PLUS_EQ:
+ case GoLexer::OP_MINUS_EQ:
+ case GoLexer::OP_PIPE_EQ:
+ case GoLexer::OP_CARET_EQ:
+ case GoLexer::OP_STAR_EQ:
+ case GoLexer::OP_SLASH_EQ:
+ case GoLexer::OP_PERCENT_EQ:
+ case GoLexer::OP_LSHIFT_EQ:
+ case GoLexer::OP_RSHIFT_EQ:
+ case GoLexer::OP_AMP_EQ:
+ case GoLexer::OP_AMP_CARET_EQ:
+ break;
+ default:
+ return r.error();
+ }
+ // We don't want to own e until we know this is an assignment.
+ std::unique_ptr<GoASTAssignStmt> stmt(new GoASTAssignStmt(false));
+ stmt->AddLhs(e);
+ for (auto &l : lhs)
+ stmt->AddLhs(l.release());
+ for (GoASTExpr *r = Expression(); r; r = MoreExpressionList())
+ stmt->AddRhs(r);
+ if (!Semicolon() || stmt->NumRhs() == 0)
+ return new GoASTBadStmt;
+ return stmt.release();
+}
+
+GoASTStmt *
+GoParser::EmptyStmt()
+{
+ if (match(GoLexer::TOK_EOF))
+ return nullptr;
+ if (Semicolon())
+ return new GoASTEmptyStmt;
+ return nullptr;
+}
+
+GoASTStmt *
+GoParser::GoStmt()
+{
+ if (match(GoLexer::KEYWORD_GO))
+ {
+ if (GoASTCallExpr *e = llvm::dyn_cast_or_null<GoASTCallExpr>(Expression()))
+ {
+ return FinishStmt(new GoASTGoStmt(e));
+ }
+ m_last = "call expression";
+ m_failed = true;
+ return new GoASTBadStmt();
+ }
+ return nullptr;
+}
+
+GoASTStmt *
+GoParser::ReturnStmt()
+{
+ if (match(GoLexer::KEYWORD_RETURN))
+ {
+ std::unique_ptr<GoASTReturnStmt> r(new GoASTReturnStmt());
+ for (GoASTExpr *e = Expression(); e; e = MoreExpressionList())
+ r->AddResults(e);
+ return FinishStmt(r.release());
+ }
+ return nullptr;
+}
+
+GoASTStmt *
+GoParser::BranchStmt()
+{
+ GoLexer::Token *tok;
+ if ((tok = match(GoLexer::KEYWORD_BREAK)) || (tok = match(GoLexer::KEYWORD_CONTINUE)) ||
+ (tok = match(GoLexer::KEYWORD_GOTO)))
+ {
+ auto *e = Identifier();
+ if (tok->m_type == GoLexer::KEYWORD_GOTO && !e)
+ return syntaxerror();
+ return FinishStmt(new GoASTBranchStmt(e, tok->m_type));
+ }
+ if ((tok = match(GoLexer::KEYWORD_FALLTHROUGH)))
+ return FinishStmt(new GoASTBranchStmt(nullptr, tok->m_type));
+
+ return nullptr;
+}
+
+GoASTIdent *
+GoParser::Identifier()
+{
+ if (auto *tok = match(GoLexer::TOK_IDENTIFIER))
+ return new GoASTIdent(*tok);
+ return nullptr;
+}
+
+GoASTExpr *
+GoParser::MoreExpressionList()
+{
+ if (match(GoLexer::OP_COMMA))
+ {
+ auto *e = Expression();
+ if (!e)
+ return syntaxerror();
+ return e;
+ }
+ return nullptr;
+}
+
+GoASTIdent *
+GoParser::MoreIdentifierList()
+{
+ if (match(GoLexer::OP_COMMA))
+ {
+ auto *i = Identifier();
+ if (!i)
+ return syntaxerror();
+ return i;
+ }
+ return nullptr;
+}
+
+GoASTExpr *
+GoParser::Expression()
+{
+ Rule r("Expression", this);
+ if (GoASTExpr *ret = OrExpr())
+ return ret;
+ return r.error();
+}
+
+GoASTExpr *
+GoParser::UnaryExpr()
+{
+ switch (peek())
+ {
+ case GoLexer::OP_PLUS:
+ case GoLexer::OP_MINUS:
+ case GoLexer::OP_BANG:
+ case GoLexer::OP_CARET:
+ case GoLexer::OP_STAR:
+ case GoLexer::OP_AMP:
+ case GoLexer::OP_LT_MINUS:
+ {
+ const GoLexer::Token t = next();
+ if (GoASTExpr *e = UnaryExpr())
+ {
+ if (t.m_type == GoLexer::OP_STAR)
+ return new GoASTStarExpr(e);
+ else
+ return new GoASTUnaryExpr(t.m_type, e);
+ }
+ return syntaxerror();
+ }
+ default:
+ return PrimaryExpr();
+ }
+}
+
+GoASTExpr *
+GoParser::OrExpr()
+{
+ std::unique_ptr<GoASTExpr> l(AndExpr());
+ if (l)
+ {
+ while (match(GoLexer::OP_PIPE_PIPE))
+ {
+ GoASTExpr *r = AndExpr();
+ if (r)
+ l.reset(new GoASTBinaryExpr(l.release(), r, GoLexer::OP_PIPE_PIPE));
+ else
+ return syntaxerror();
+ }
+ return l.release();
+ }
+ return nullptr;
+}
+
+GoASTExpr *
+GoParser::AndExpr()
+{
+ std::unique_ptr<GoASTExpr> l(RelExpr());
+ if (l)
+ {
+ while (match(GoLexer::OP_AMP_AMP))
+ {
+ GoASTExpr *r = RelExpr();
+ if (r)
+ l.reset(new GoASTBinaryExpr(l.release(), r, GoLexer::OP_AMP_AMP));
+ else
+ return syntaxerror();
+ }
+ return l.release();
+ }
+ return nullptr;
+}
+
+GoASTExpr *
+GoParser::RelExpr()
+{
+ std::unique_ptr<GoASTExpr> l(AddExpr());
+ if (l)
+ {
+ for (GoLexer::Token *t; (t = match(GoLexer::OP_EQ_EQ)) || (t = match(GoLexer::OP_BANG_EQ)) ||
+ (t = match(GoLexer::OP_LT)) || (t = match(GoLexer::OP_LT_EQ)) ||
+ (t = match(GoLexer::OP_GT)) || (t = match(GoLexer::OP_GT_EQ));)
+ {
+ GoLexer::TokenType op = t->m_type;
+ GoASTExpr *r = AddExpr();
+ if (r)
+ l.reset(new GoASTBinaryExpr(l.release(), r, op));
+ else
+ return syntaxerror();
+ }
+ return l.release();
+ }
+ return nullptr;
+}
+
+GoASTExpr *
+GoParser::AddExpr()
+{
+ std::unique_ptr<GoASTExpr> l(MulExpr());
+ if (l)
+ {
+ for (GoLexer::Token *t; (t = match(GoLexer::OP_PLUS)) || (t = match(GoLexer::OP_MINUS)) ||
+ (t = match(GoLexer::OP_PIPE)) || (t = match(GoLexer::OP_CARET));)
+ {
+ GoLexer::TokenType op = t->m_type;
+ GoASTExpr *r = MulExpr();
+ if (r)
+ l.reset(new GoASTBinaryExpr(l.release(), r, op));
+ else
+ return syntaxerror();
+ }
+ return l.release();
+ }
+ return nullptr;
+}
+
+GoASTExpr *
+GoParser::MulExpr()
+{
+ std::unique_ptr<GoASTExpr> l(UnaryExpr());
+ if (l)
+ {
+ for (GoLexer::Token *t; (t = match(GoLexer::OP_STAR)) || (t = match(GoLexer::OP_SLASH)) ||
+ (t = match(GoLexer::OP_PERCENT)) || (t = match(GoLexer::OP_LSHIFT)) ||
+ (t = match(GoLexer::OP_RSHIFT)) || (t = match(GoLexer::OP_AMP)) ||
+ (t = match(GoLexer::OP_AMP_CARET));)
+ {
+ GoLexer::TokenType op = t->m_type;
+ GoASTExpr *r = UnaryExpr();
+ if (r)
+ l.reset(new GoASTBinaryExpr(l.release(), r, op));
+ else
+ return syntaxerror();
+ }
+ return l.release();
+ }
+ return nullptr;
+}
+
+GoASTExpr *
+GoParser::PrimaryExpr()
+{
+ GoASTExpr *l;
+ GoASTExpr *r;
+ (l = Conversion()) || (l = Operand());
+ if (!l)
+ return nullptr;
+ while ((r = Selector(l)) || (r = IndexOrSlice(l)) || (r = TypeAssertion(l)) || (r = Arguments(l)))
+ {
+ l = r;
+ }
+ return l;
+}
+
+GoASTExpr *
+GoParser::Operand()
+{
+ GoLexer::Token *lit;
+ if ((lit = match(GoLexer::LIT_INTEGER)) || (lit = match(GoLexer::LIT_FLOAT)) ||
+ (lit = match(GoLexer::LIT_IMAGINARY)) || (lit = match(GoLexer::LIT_RUNE)) || (lit = match(GoLexer::LIT_STRING)))
+ return new GoASTBasicLit(*lit);
+ if (match(GoLexer::OP_LPAREN))
+ {
+ GoASTExpr *e;
+ if (!((e = Expression()) && match(GoLexer::OP_RPAREN)))
+ return syntaxerror();
+ return e;
+ }
+ // MethodExpr should be handled by Selector
+ if (GoASTExpr *e = CompositeLit())
+ return e;
+ if (GoASTExpr *n = Name())
+ return n;
+ return FunctionLit();
+}
+
+GoASTExpr *
+GoParser::FunctionLit()
+{
+ if (!match(GoLexer::KEYWORD_FUNC))
+ return nullptr;
+ auto *sig = Signature();
+ if (!sig)
+ return syntaxerror();
+ auto *body = Block();
+ if (!body)
+ {
+ delete sig;
+ return syntaxerror();
+ }
+ return new GoASTFuncLit(sig, body);
+}
+
+GoASTBlockStmt *
+GoParser::Block()
+{
+ if (!match(GoLexer::OP_LBRACE))
+ return nullptr;
+ std::unique_ptr<GoASTBlockStmt> block(new GoASTBlockStmt);
+ for (auto *s = Statement(); s; s = Statement())
+ block->AddList(s);
+ if (!match(GoLexer::OP_RBRACE))
+ return syntaxerror();
+ return block.release();
+}
+
+GoASTExpr *
+GoParser::CompositeLit()
+{
+ Rule r("CompositeLit", this);
+ GoASTExpr *type;
+ (type = StructType()) || (type = ArrayOrSliceType(true)) || (type = MapType()) || (type = Name());
+ if (!type)
+ return r.error();
+ GoASTCompositeLit *lit = LiteralValue();
+ if (!lit)
+ return r.error();
+ lit->SetType(type);
+ return lit;
+}
+
+GoASTCompositeLit *
+GoParser::LiteralValue()
+{
+ if (!match(GoLexer::OP_LBRACE))
+ return nullptr;
+ std::unique_ptr<GoASTCompositeLit> lit(new GoASTCompositeLit);
+ for (GoASTExpr *e = Element(); e; e = Element())
+ {
+ lit->AddElts(e);
+ if (!match(GoLexer::OP_COMMA))
+ break;
+ }
+ if (!mustMatch(GoLexer::OP_RBRACE))
+ return nullptr;
+ return lit.release();
+}
+
+GoASTExpr *
+GoParser::Element()
+{
+ GoASTExpr *key;
+ if (!((key = Expression()) || (key = LiteralValue())))
+ return nullptr;
+ if (!match(GoLexer::OP_COLON))
+ return key;
+ GoASTExpr *value;
+ if ((value = Expression()) || (value = LiteralValue()))
+ return new GoASTKeyValueExpr(key, value);
+ delete key;
+ return syntaxerror();
+}
+
+GoASTExpr *
+GoParser::Selector(GoASTExpr *e)
+{
+ Rule r("Selector", this);
+ if (match(GoLexer::OP_DOT))
+ {
+ if (auto *name = Identifier())
+ return new GoASTSelectorExpr(e, name);
+ }
+ return r.error();
+}
+
+GoASTExpr *
+GoParser::IndexOrSlice(GoASTExpr *e)
+{
+ Rule r("IndexOrSlice", this);
+ if (match(GoLexer::OP_LBRACK))
+ {
+ std::unique_ptr<GoASTExpr> i1(Expression()), i2, i3;
+ bool slice = false;
+ if (match(GoLexer::OP_COLON))
+ {
+ slice = true;
+ i2.reset(Expression());
+ if (i2 && match(GoLexer::OP_COLON))
+ {
+ i3.reset(Expression());
+ if (!i3)
+ return syntaxerror();
+ }
+ }
+ if (!(slice || i1))
+ return syntaxerror();
+ if (!mustMatch(GoLexer::OP_RBRACK))
+ return nullptr;
+ if (slice)
+ {
+ bool slice3 = i3.get();
+ return new GoASTSliceExpr(e, i1.release(), i2.release(), i3.release(), slice3);
+ }
+ return new GoASTIndexExpr(e, i1.release());
+ }
+ return r.error();
+}
+
+GoASTExpr *
+GoParser::TypeAssertion(GoASTExpr *e)
+{
+ Rule r("TypeAssertion", this);
+ if (match(GoLexer::OP_DOT) && match(GoLexer::OP_LPAREN))
+ {
+ if (auto *t = Type())
+ {
+ if (!mustMatch(GoLexer::OP_RPAREN))
+ return nullptr;
+ return new GoASTTypeAssertExpr(e, t);
+ }
+ return syntaxerror();
+ }
+ return r.error();
+}
+
+GoASTExpr *
+GoParser::Arguments(GoASTExpr *e)
+{
+ if (match(GoLexer::OP_LPAREN))
+ {
+ std::unique_ptr<GoASTCallExpr> call(new GoASTCallExpr(false));
+ GoASTExpr *arg;
+ // ( ExpressionList | Type [ "," ExpressionList ] )
+ for ((arg = Expression()) || (arg = Type()); arg; arg = MoreExpressionList())
+ {
+ call->AddArgs(arg);
+ }
+ if (match(GoLexer::OP_DOTS))
+ call->SetEllipsis(true);
+
+ // Eat trailing comma
+ match(GoLexer::OP_COMMA);
+
+ if (!mustMatch(GoLexer::OP_RPAREN))
+ return nullptr;
+ call->SetFun(e);
+ return call.release();
+ }
+ return nullptr;
+}
+
+GoASTExpr *
+GoParser::Conversion()
+{
+ Rule r("Conversion", this);
+ if (GoASTExpr *t = Type2())
+ {
+ if (match(GoLexer::OP_LPAREN))
+ {
+ GoASTExpr *v = Expression();
+ if (!v)
+ return syntaxerror();
+ match(GoLexer::OP_COMMA);
+ if (!mustMatch(GoLexer::OP_RPAREN))
+ return r.error();
+ GoASTCallExpr *call = new GoASTCallExpr(false);
+ call->SetFun(t);
+ call->AddArgs(v);
+ return call;
+ }
+ }
+ return r.error();
+}
+
+GoASTExpr *
+GoParser::Type2()
+{
+ switch (peek())
+ {
+ case GoLexer::OP_LBRACK:
+ return ArrayOrSliceType(false);
+ case GoLexer::KEYWORD_STRUCT:
+ return StructType();
+ case GoLexer::KEYWORD_FUNC:
+ return FunctionType();
+ case GoLexer::KEYWORD_INTERFACE:
+ return InterfaceType();
+ case GoLexer::KEYWORD_MAP:
+ return MapType();
+ case GoLexer::KEYWORD_CHAN:
+ return ChanType2();
+ default:
+ return nullptr;
+ }
+}
+
+GoASTExpr *
+GoParser::ArrayOrSliceType(bool allowEllipsis)
+{
+ Rule r("ArrayType", this);
+ if (match(GoLexer::OP_LBRACK))
+ {
+ std::unique_ptr<GoASTExpr> len;
+ if (allowEllipsis && match(GoLexer::OP_DOTS))
+ {
+ len.reset(new GoASTEllipsis(nullptr));
+ }
+ else
+ {
+ len.reset(Expression());
+ }
+
+ if (!match(GoLexer::OP_RBRACK))
+ return r.error();
+ GoASTExpr *elem = Type();
+ if (!elem)
+ return syntaxerror();
+ return new GoASTArrayType(len.release(), elem);
+ }
+ return r.error();
+}
+
+GoASTExpr *
+GoParser::StructType()
+{
+ if (!(match(GoLexer::KEYWORD_STRUCT) && mustMatch(GoLexer::OP_LBRACE)))
+ return nullptr;
+ std::unique_ptr<GoASTFieldList> fields(new GoASTFieldList);
+ while (auto *field = FieldDecl())
+ fields->AddList(field);
+ if (!mustMatch(GoLexer::OP_RBRACE))
+ return nullptr;
+ return new GoASTStructType(fields.release());
+}
+
+GoASTField *
+GoParser::FieldDecl()
+{
+ std::unique_ptr<GoASTField> f(new GoASTField);
+ GoASTExpr *t = FieldNamesAndType(f.get());
+ if (!t)
+ t = AnonymousFieldType();
+ if (!t)
+ return nullptr;
+
+ if (auto *tok = match(GoLexer::LIT_STRING))
+ f->SetTag(new GoASTBasicLit(*tok));
+ if (!Semicolon())
+ return syntaxerror();
+ return f.release();
+}
+
+GoASTExpr *
+GoParser::FieldNamesAndType(GoASTField *field)
+{
+ Rule r("FieldNames", this);
+ for (auto *id = Identifier(); id; id = MoreIdentifierList())
+ field->AddNames(id);
+ if (m_failed)
+ return nullptr;
+ GoASTExpr *t = Type();
+ if (t)
+ return t;
+ return r.error();
+}
+
+GoASTExpr *
+GoParser::AnonymousFieldType()
+{
+ bool pointer = match(GoLexer::OP_STAR);
+ GoASTExpr *t = Type();
+ if (!t)
+ return nullptr;
+ if (pointer)
+ return new GoASTStarExpr(t);
+ return t;
+}
+
+GoASTExpr *
+GoParser::FunctionType()
+{
+ if (!match(GoLexer::KEYWORD_FUNC))
+ return nullptr;
+ return Signature();
+}
+
+GoASTFuncType *
+GoParser::Signature()
+{
+ auto *params = Params();
+ if (!params)
+ return syntaxerror();
+ auto *result = Params();
+ if (!result)
+ {
+ if (auto *t = Type())
+ {
+ result = new GoASTFieldList;
+ auto *f = new GoASTField;
+ f->SetType(t);
+ result->AddList(f);
+ }
+ }
+ return new GoASTFuncType(params, result);
+}
+
+GoASTFieldList *
+GoParser::Params()
+{
+ if (!match(GoLexer::OP_LPAREN))
+ return nullptr;
+ std::unique_ptr<GoASTFieldList> l(new GoASTFieldList);
+ while (GoASTField *p = ParamDecl())
+ {
+ l->AddList(p);
+ if (!match(GoLexer::OP_COMMA))
+ break;
+ }
+ if (!mustMatch(GoLexer::OP_RPAREN))
+ return nullptr;
+ return l.release();
+}
+
+GoASTField *
+GoParser::ParamDecl()
+{
+ std::unique_ptr<GoASTField> field(new GoASTField);
+ GoASTIdent *id = Identifier();
+ if (id)
+ {
+ // Try `IdentifierList [ "..." ] Type`.
+ // If that fails, backtrack and try `[ "..." ] Type`.
+ Rule r("NamedParam", this);
+ for (; id; id = MoreIdentifierList())
+ field->AddNames(id);
+ GoASTExpr *t = ParamType();
+ if (t)
+ {
+ field->SetType(t);
+ return field.release();
+ }
+ field.reset(new GoASTField);
+ r.error();
+ }
+ GoASTExpr *t = ParamType();
+ if (t)
+ {
+ field->SetType(t);
+ return field.release();
+ }
+ return nullptr;
+}
+
+GoASTExpr *
+GoParser::ParamType()
+{
+ bool dots = match(GoLexer::OP_DOTS);
+ GoASTExpr *t = Type();
+ if (!dots)
+ return t;
+ if (!t)
+ return syntaxerror();
+ return new GoASTEllipsis(t);
+}
+
+GoASTExpr *
+GoParser::InterfaceType()
+{
+ if (!match(GoLexer::KEYWORD_INTERFACE) || !mustMatch(GoLexer::OP_LBRACE))
+ return nullptr;
+ std::unique_ptr<GoASTFieldList> methods(new GoASTFieldList);
+ while (true)
+ {
+ Rule r("MethodSpec", this);
+ // ( identifier Signature | TypeName ) ;
+ std::unique_ptr<GoASTIdent> id(Identifier());
+ if (!id)
+ break;
+ GoASTExpr *type = Signature();
+ if (!type)
+ {
+ r.error();
+ id.reset();
+ type = Name();
+ }
+ if (!Semicolon())
+ return syntaxerror();
+ auto *f = new GoASTField;
+ if (id)
+ f->AddNames(id.release());
+ f->SetType(type);
+ methods->AddList(f);
+ }
+ if (!mustMatch(GoLexer::OP_RBRACE))
+ return nullptr;
+ return new GoASTInterfaceType(methods.release());
+}
+
+GoASTExpr *
+GoParser::MapType()
+{
+ if (!(match(GoLexer::KEYWORD_MAP) && mustMatch(GoLexer::OP_LBRACK)))
+ return nullptr;
+ std::unique_ptr<GoASTExpr> key(Type());
+ if (!key)
+ return syntaxerror();
+ if (!mustMatch(GoLexer::OP_RBRACK))
+ return nullptr;
+ auto *elem = Type();
+ if (!elem)
+ return syntaxerror();
+ return new GoASTMapType(key.release(), elem);
+}
+
+GoASTExpr *
+GoParser::ChanType()
+{
+ Rule r("chan", this);
+ if (match(GoLexer::OP_LT_MINUS))
+ {
+ if (match(GoLexer::KEYWORD_CHAN))
+ {
+ auto *elem = Type();
+ if (!elem)
+ return syntaxerror();
+ return new GoASTChanType(GoASTNode::eChanRecv, elem);
+ }
+ return r.error();
+ }
+ return ChanType2();
+}
+
+GoASTExpr *
+GoParser::ChanType2()
+{
+ if (!match(GoLexer::KEYWORD_CHAN))
+ return nullptr;
+ auto dir = GoASTNode::eChanBidir;
+ if (match(GoLexer::OP_LT_MINUS))
+ dir = GoASTNode::eChanSend;
+ auto *elem = Type();
+ if (!elem)
+ return syntaxerror();
+ return new GoASTChanType(dir, elem);
+}
+
+GoASTExpr *
+GoParser::Type()
+{
+ if (GoASTExpr *t = Type2())
+ return t;
+ if (GoASTExpr *t = Name())
+ return t;
+ if (GoASTExpr *t = ChanType())
+ return t;
+ if (match(GoLexer::OP_STAR))
+ {
+ GoASTExpr *t = Type();
+ if (!t)
+ return syntaxerror();
+ return new GoASTStarExpr(t);
+ }
+ if (match(GoLexer::OP_LPAREN))
+ {
+ std::unique_ptr<GoASTExpr> t(Type());
+ if (!t || !match(GoLexer::OP_RPAREN))
+ return syntaxerror();
+ return t.release();
+ }
+ return nullptr;
+}
+
+bool
+GoParser::Semicolon()
+{
+ if (match(GoLexer::OP_SEMICOLON))
+ return true;
+ switch (peek())
+ {
+ case GoLexer::OP_RPAREN:
+ case GoLexer::OP_RBRACE:
+ case GoLexer::TOK_EOF:
+ return true;
+ default:
+ return false;
+ }
+}
+
+GoASTExpr *
+GoParser::Name()
+{
+ if (auto *id = Identifier())
+ {
+ if (GoASTExpr *qual = QualifiedIdent(id))
+ return qual;
+ return id;
+ }
+ return nullptr;
+}
+
+GoASTExpr *
+GoParser::QualifiedIdent(lldb_private::GoASTIdent *p)
+{
+ Rule r("QualifiedIdent", this);
+ llvm::SmallString<32> path(p->GetName().m_value);
+ GoLexer::Token *next;
+ bool have_slashes = false;
+ // LLDB extension: support full/package/path.name
+ while (match(GoLexer::OP_SLASH) && (next = match(GoLexer::TOK_IDENTIFIER)))
+ {
+ have_slashes = true;
+ path.append("/");
+ path.append(next->m_value);
+ }
+ if (match(GoLexer::OP_DOT))
+ {
+ auto *name = Identifier();
+ if (name)
+ {
+ if (have_slashes)
+ {
+ p->SetName(GoLexer::Token(GoLexer::TOK_IDENTIFIER, CopyString(path)));
+ }
+ return new GoASTSelectorExpr(p, name);
+ }
+ }
+ return r.error();
+}
+
+llvm::StringRef
+GoParser::CopyString(llvm::StringRef s)
+{
+ return m_strings.insert(std::make_pair(s, 'x')).first->getKey();
+}
+
+void
+GoParser::GetError(Error &error)
+{
+ llvm::StringRef want;
+ if (m_failed)
+ want = m_last_tok == GoLexer::TOK_INVALID ? DescribeToken(m_last_tok) : m_last;
+ else
+ want = m_error;
+ size_t len = m_lexer.BytesRemaining();
+ if (len > 10)
+ len = 10;
+ llvm::StringRef got;
+ if (len == 0)
+ got = "<eof>";
+ else
+ got = m_lexer.GetString(len);
+ error.SetErrorStringWithFormat("Syntax error: expected %s before '%s'.", want.str().c_str(), got.str().c_str());
+}
diff --git a/source/Plugins/ExpressionParser/Go/GoParser.h b/source/Plugins/ExpressionParser/Go/GoParser.h
new file mode 100644
index 0000000000000..9ceb670ccd117
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Go/GoParser.h
@@ -0,0 +1,165 @@
+//===-- GoParser.h -----------------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_GoParser_h
+#define liblldb_GoParser_h
+
+#include "lldb/lldb-private.h"
+#include "Plugins/ExpressionParser/Go/GoAST.h"
+#include "Plugins/ExpressionParser/Go/GoLexer.h"
+
+namespace lldb_private
+{
+class GoParser
+{
+ public:
+ explicit GoParser(const char *src);
+
+ GoASTStmt *Statement();
+
+ GoASTStmt *GoStmt();
+ GoASTStmt *ReturnStmt();
+ GoASTStmt *BranchStmt();
+ GoASTStmt *EmptyStmt();
+ GoASTStmt *ExpressionStmt(GoASTExpr *e);
+ GoASTStmt *IncDecStmt(GoASTExpr *e);
+ GoASTStmt *Assignment(GoASTExpr *e);
+ GoASTBlockStmt *Block();
+
+ GoASTExpr *MoreExpressionList(); // ["," Expression]
+ GoASTIdent *MoreIdentifierList(); // ["," Identifier]
+
+ GoASTExpr *Expression();
+ GoASTExpr *UnaryExpr();
+ GoASTExpr *OrExpr();
+ GoASTExpr *AndExpr();
+ GoASTExpr *RelExpr();
+ GoASTExpr *AddExpr();
+ GoASTExpr *MulExpr();
+ GoASTExpr *PrimaryExpr();
+ GoASTExpr *Operand();
+ GoASTExpr *Conversion();
+
+ GoASTExpr *Selector(GoASTExpr *e);
+ GoASTExpr *IndexOrSlice(GoASTExpr *e);
+ GoASTExpr *TypeAssertion(GoASTExpr *e);
+ GoASTExpr *Arguments(GoASTExpr *e);
+
+ GoASTExpr *Type();
+ GoASTExpr *Type2();
+ GoASTExpr *ArrayOrSliceType(bool allowEllipsis);
+ GoASTExpr *StructType();
+ GoASTExpr *FunctionType();
+ GoASTExpr *InterfaceType();
+ GoASTExpr *MapType();
+ GoASTExpr *ChanType();
+ GoASTExpr *ChanType2();
+
+ GoASTExpr *Name();
+ GoASTExpr *QualifiedIdent(GoASTIdent *p);
+ GoASTIdent *Identifier();
+
+ GoASTField *FieldDecl();
+ GoASTExpr *AnonymousFieldType();
+ GoASTExpr *FieldNamesAndType(GoASTField *f);
+
+ GoASTFieldList *Params();
+ GoASTField *ParamDecl();
+ GoASTExpr *ParamType();
+ GoASTFuncType *Signature();
+ GoASTExpr *CompositeLit();
+ GoASTExpr *FunctionLit();
+ GoASTExpr *Element();
+ GoASTCompositeLit *LiteralValue();
+
+ bool
+ Failed() const
+ {
+ return m_failed;
+ }
+ bool
+ AtEOF() const
+ {
+ return m_lexer.BytesRemaining() == 0 && m_pos == m_tokens.size();
+ }
+
+ void GetError(Error &error);
+
+ private:
+ class Rule;
+ friend class Rule;
+
+ std::nullptr_t
+ syntaxerror()
+ {
+ m_failed = true;
+ return nullptr;
+ }
+ GoLexer::Token &
+ next()
+ {
+ if (m_pos >= m_tokens.size())
+ {
+ if (m_pos != 0 &&
+ (m_tokens.back().m_type == GoLexer::TOK_EOF || m_tokens.back().m_type == GoLexer::TOK_INVALID))
+ return m_tokens.back();
+ m_pos = m_tokens.size();
+ m_tokens.push_back(m_lexer.Lex());
+ }
+ return m_tokens[m_pos++];
+ }
+ GoLexer::TokenType
+ peek()
+ {
+ GoLexer::Token &tok = next();
+ --m_pos;
+ return tok.m_type;
+ }
+ GoLexer::Token *
+ match(GoLexer::TokenType t)
+ {
+ GoLexer::Token &tok = next();
+ if (tok.m_type == t)
+ return &tok;
+ --m_pos;
+ m_last_tok = t;
+ return nullptr;
+ }
+ GoLexer::Token *
+ mustMatch(GoLexer::TokenType t)
+ {
+ GoLexer::Token *tok = match(t);
+ if (tok)
+ return tok;
+ return syntaxerror();
+ }
+ bool Semicolon();
+
+ GoASTStmt *
+ FinishStmt(GoASTStmt *s)
+ {
+ if (!Semicolon())
+ m_failed = true;
+ return s;
+ }
+
+ llvm::StringRef CopyString(llvm::StringRef s);
+
+ GoLexer m_lexer;
+ std::vector<GoLexer::Token> m_tokens;
+ size_t m_pos;
+ llvm::StringRef m_error;
+ llvm::StringRef m_last;
+ GoLexer::TokenType m_last_tok;
+ llvm::StringMap<uint8_t> m_strings;
+ bool m_failed;
+};
+}
+
+#endif
diff --git a/source/Plugins/ExpressionParser/Go/GoUserExpression.cpp b/source/Plugins/ExpressionParser/Go/GoUserExpression.cpp
new file mode 100644
index 0000000000000..3f12a2b6255bb
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Go/GoUserExpression.cpp
@@ -0,0 +1,756 @@
+//===-- GoUserExpression.cpp ------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// C Includes
+#include <stdio.h>
+#if HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+// C++ Includes
+#include <cstdlib>
+#include <memory>
+#include <string>
+#include <vector>
+
+// Other libraries and framework includes
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/StringMap.h"
+
+// Project includes
+#include "GoUserExpression.h"
+
+#include "lldb/lldb-private.h"
+#include "lldb/Core/ConstString.h"
+#include "lldb/Core/DataBufferHeap.h"
+#include "lldb/Core/DataEncoder.h"
+#include "lldb/Core/DataExtractor.h"
+#include "lldb/Core/Log.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Core/StreamFile.h"
+#include "lldb/Core/StreamString.h"
+#include "lldb/Core/ValueObjectConstResult.h"
+#include "lldb/Core/ValueObjectRegister.h"
+#include "lldb/Expression/ExpressionVariable.h"
+#include "lldb/Symbol/TypeList.h"
+#include "lldb/Symbol/GoASTContext.h"
+#include "lldb/Symbol/VariableList.h"
+#include "lldb/Target/ExecutionContext.h"
+#include "lldb/Target/Process.h"
+#include "lldb/Target/RegisterContext.h"
+#include "lldb/Target/StackFrame.h"
+#include "lldb/Target/Target.h"
+#include "lldb/Target/ThreadPlan.h"
+#include "lldb/Target/ThreadPlanCallUserExpression.h"
+
+#include "Plugins/ExpressionParser/Go/GoAST.h"
+#include "Plugins/ExpressionParser/Go/GoParser.h"
+
+using namespace lldb_private;
+using namespace lldb;
+
+class GoUserExpression::GoInterpreter
+{
+ public:
+ GoInterpreter(ExecutionContext &exe_ctx, const char *expr)
+ : m_exe_ctx(exe_ctx), m_frame(exe_ctx.GetFrameSP()), m_parser(expr)
+ {
+ if (m_frame)
+ {
+ const SymbolContext &ctx = m_frame->GetSymbolContext(eSymbolContextFunction);
+ ConstString fname = ctx.GetFunctionName();
+ if (fname.GetLength() > 0)
+ {
+ size_t dot = fname.GetStringRef().find('.');
+ if (dot != llvm::StringRef::npos)
+ m_package = llvm::StringRef(fname.AsCString(), dot);
+ }
+ }
+ }
+
+ void
+ set_use_dynamic(DynamicValueType use_dynamic)
+ {
+ m_use_dynamic = use_dynamic;
+ }
+
+ bool Parse();
+ lldb::ValueObjectSP Evaluate(ExecutionContext &exe_ctx);
+ lldb::ValueObjectSP EvaluateStatement(const GoASTStmt *s);
+ lldb::ValueObjectSP EvaluateExpr(const GoASTExpr *e);
+
+ ValueObjectSP
+ VisitBadExpr(const GoASTBadExpr *e)
+ {
+ m_parser.GetError(m_error);
+ return nullptr;
+ }
+
+ ValueObjectSP VisitParenExpr(const GoASTParenExpr *e);
+ ValueObjectSP VisitIdent(const GoASTIdent *e);
+ ValueObjectSP VisitStarExpr(const GoASTStarExpr *e);
+ ValueObjectSP VisitSelectorExpr(const GoASTSelectorExpr *e);
+ ValueObjectSP VisitBasicLit(const GoASTBasicLit *e);
+ ValueObjectSP VisitIndexExpr(const GoASTIndexExpr *e);
+ ValueObjectSP VisitUnaryExpr(const GoASTUnaryExpr *e);
+ ValueObjectSP VisitCallExpr(const GoASTCallExpr *e);
+
+ ValueObjectSP
+ VisitTypeAssertExpr(const GoASTTypeAssertExpr *e)
+ {
+ return NotImplemented(e);
+ }
+
+ ValueObjectSP
+ VisitBinaryExpr(const GoASTBinaryExpr *e)
+ {
+ return NotImplemented(e);
+ }
+
+ ValueObjectSP
+ VisitArrayType(const GoASTArrayType *e)
+ {
+ return NotImplemented(e);
+ }
+
+ ValueObjectSP
+ VisitChanType(const GoASTChanType *e)
+ {
+ return NotImplemented(e);
+ }
+
+ ValueObjectSP
+ VisitCompositeLit(const GoASTCompositeLit *e)
+ {
+ return NotImplemented(e);
+ }
+
+ ValueObjectSP
+ VisitEllipsis(const GoASTEllipsis *e)
+ {
+ return NotImplemented(e);
+ }
+
+ ValueObjectSP
+ VisitFuncType(const GoASTFuncType *e)
+ {
+ return NotImplemented(e);
+ }
+
+ ValueObjectSP
+ VisitFuncLit(const GoASTFuncLit *e)
+ {
+ return NotImplemented(e);
+ }
+
+ ValueObjectSP
+ VisitInterfaceType(const GoASTInterfaceType *e)
+ {
+ return NotImplemented(e);
+ }
+
+ ValueObjectSP
+ VisitKeyValueExpr(const GoASTKeyValueExpr *e)
+ {
+ return NotImplemented(e);
+ }
+
+ ValueObjectSP
+ VisitMapType(const GoASTMapType *e)
+ {
+ return NotImplemented(e);
+ }
+
+ ValueObjectSP
+ VisitSliceExpr(const GoASTSliceExpr *e)
+ {
+ return NotImplemented(e);
+ }
+
+ ValueObjectSP
+ VisitStructType(const GoASTStructType *e)
+ {
+ return NotImplemented(e);
+ }
+
+ CompilerType EvaluateType(const GoASTExpr *e);
+
+ Error &
+ error()
+ {
+ return m_error;
+ }
+
+ private:
+ std::nullptr_t
+ NotImplemented(const GoASTExpr *e)
+ {
+ m_error.SetErrorStringWithFormat("%s node not implemented", e->GetKindName());
+ return nullptr;
+ }
+
+ ExecutionContext m_exe_ctx;
+ lldb::StackFrameSP m_frame;
+ GoParser m_parser;
+ DynamicValueType m_use_dynamic;
+ Error m_error;
+ llvm::StringRef m_package;
+ std::vector<std::unique_ptr<GoASTStmt>> m_statements;
+};
+
+VariableSP
+FindGlobalVariable(TargetSP target, llvm::Twine name)
+{
+ ConstString fullname(name.str());
+ VariableList variable_list;
+ const bool append = true;
+ if (!target)
+ {
+ return nullptr;
+ }
+ const uint32_t match_count = target->GetImages().FindGlobalVariables(fullname, append, 1, variable_list);
+ if (match_count == 1)
+ {
+ return variable_list.GetVariableAtIndex(0);
+ }
+ return nullptr;
+}
+
+CompilerType
+LookupType(TargetSP target, ConstString name)
+{
+ if (!target)
+ return CompilerType();
+ SymbolContext sc;
+ TypeList type_list;
+ uint32_t num_matches = target->GetImages().FindTypes(sc, name, false, 2, type_list);
+ if (num_matches > 0)
+ {
+ return type_list.GetTypeAtIndex(0)->GetFullCompilerType();
+ }
+ return CompilerType();
+}
+
+GoUserExpression::GoUserExpression(ExecutionContextScope &exe_scope, const char *expr, const char *expr_prefix,
+ lldb::LanguageType language, ResultType desired_type,
+ const EvaluateExpressionOptions &options)
+ : UserExpression(exe_scope, expr, expr_prefix, language, desired_type, options)
+{
+}
+
+bool
+GoUserExpression::Parse(Stream &error_stream, ExecutionContext &exe_ctx, lldb_private::ExecutionPolicy execution_policy,
+ bool keep_result_in_memory, bool generate_debug_info)
+{
+ InstallContext(exe_ctx);
+ m_interpreter.reset(new GoInterpreter(exe_ctx, GetUserText()));
+ if (m_interpreter->Parse())
+ return true;
+ const char *error_cstr = m_interpreter->error().AsCString();
+ if (error_cstr && error_cstr[0])
+ error_stream.Printf("error: %s\n", error_cstr);
+ else
+ error_stream.Printf("error: expression can't be interpreted or run\n");
+ return false;
+}
+
+lldb::ExpressionResults
+GoUserExpression::Execute(Stream &error_stream, ExecutionContext &exe_ctx, const EvaluateExpressionOptions &options,
+ lldb::UserExpressionSP &shared_ptr_to_me, lldb::ExpressionVariableSP &result)
+{
+ Log *log(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_EXPRESSIONS | LIBLLDB_LOG_STEP));
+
+ lldb_private::ExecutionPolicy execution_policy = options.GetExecutionPolicy();
+ lldb::ExpressionResults execution_results = lldb::eExpressionSetupError;
+
+ Process *process = exe_ctx.GetProcessPtr();
+ Target *target = exe_ctx.GetTargetPtr();
+
+ if (target == nullptr || process == nullptr || process->GetState() != lldb::eStateStopped)
+ {
+ if (execution_policy == eExecutionPolicyAlways)
+ {
+ if (log)
+ log->Printf("== [GoUserExpression::Evaluate] Expression may not run, but is not constant ==");
+
+ error_stream.Printf("expression needed to run but couldn't");
+
+ return execution_results;
+ }
+ }
+
+ m_interpreter->set_use_dynamic(options.GetUseDynamic());
+ ValueObjectSP result_val_sp = m_interpreter->Evaluate(exe_ctx);
+ Error err = m_interpreter->error();
+ m_interpreter.reset();
+
+ if (!result_val_sp)
+ {
+ const char *error_cstr = err.AsCString();
+ if (error_cstr && error_cstr[0])
+ error_stream.Printf("error: %s\n", error_cstr);
+ else
+ error_stream.Printf("error: expression can't be interpreted or run\n");
+ return lldb::eExpressionDiscarded;
+ }
+ result.reset(new ExpressionVariable(ExpressionVariable::eKindGo));
+ result->m_live_sp = result->m_frozen_sp = result_val_sp;
+ result->m_flags |= ExpressionVariable::EVIsProgramReference;
+ PersistentExpressionState *pv = target->GetPersistentExpressionStateForLanguage(eLanguageTypeGo);
+ if (pv != nullptr)
+ {
+ result->SetName(pv->GetNextPersistentVariableName());
+ pv->AddVariable(result);
+ }
+ return lldb::eExpressionCompleted;
+}
+
+bool
+GoUserExpression::GoInterpreter::Parse()
+{
+ for (std::unique_ptr<GoASTStmt> stmt(m_parser.Statement()); stmt; stmt.reset(m_parser.Statement()))
+ {
+ if (m_parser.Failed())
+ break;
+ m_statements.emplace_back(std::move(stmt));
+ }
+ if (m_parser.Failed() || !m_parser.AtEOF())
+ m_parser.GetError(m_error);
+
+ return m_error.Success();
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::Evaluate(ExecutionContext &exe_ctx)
+{
+ m_exe_ctx = exe_ctx;
+ ValueObjectSP result;
+ for (const std::unique_ptr<GoASTStmt> &stmt : m_statements)
+ {
+ result = EvaluateStatement(stmt.get());
+ if (m_error.Fail())
+ return nullptr;
+ }
+ return result;
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::EvaluateStatement(const lldb_private::GoASTStmt *stmt)
+{
+ ValueObjectSP result;
+ switch (stmt->GetKind())
+ {
+ case GoASTNode::eBlockStmt:
+ {
+ const GoASTBlockStmt *block = llvm::cast<GoASTBlockStmt>(stmt);
+ for (size_t i = 0; i < block->NumList(); ++i)
+ result = EvaluateStatement(block->GetList(i));
+ break;
+ }
+ case GoASTNode::eBadStmt:
+ m_parser.GetError(m_error);
+ break;
+ case GoASTNode::eExprStmt:
+ {
+ const GoASTExprStmt *expr = llvm::cast<GoASTExprStmt>(stmt);
+ return EvaluateExpr(expr->GetX());
+ }
+ default:
+ m_error.SetErrorStringWithFormat("%s node not supported", stmt->GetKindName());
+ }
+ return result;
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::EvaluateExpr(const lldb_private::GoASTExpr *e)
+{
+ if (e)
+ return e->Visit<ValueObjectSP>(this);
+ return ValueObjectSP();
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::VisitParenExpr(const lldb_private::GoASTParenExpr *e)
+{
+ return EvaluateExpr(e->GetX());
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::VisitIdent(const GoASTIdent *e)
+{
+ ValueObjectSP val;
+ if (m_frame)
+ {
+ VariableSP var_sp;
+ std::string varname = e->GetName().m_value.str();
+ if (varname.size() > 1 && varname[0] == '$')
+ {
+ RegisterContextSP reg_ctx_sp = m_frame->GetRegisterContext();
+ const RegisterInfo *reg = reg_ctx_sp->GetRegisterInfoByName(varname.c_str() + 1);
+ if (reg)
+ {
+ std::string type;
+ switch (reg->encoding)
+ {
+ case lldb::eEncodingSint:
+ type.append("int");
+ break;
+ case lldb::eEncodingUint:
+ type.append("uint");
+ break;
+ case lldb::eEncodingIEEE754:
+ type.append("float");
+ break;
+ default:
+ m_error.SetErrorString("Invaild register encoding");
+ return nullptr;
+ }
+ switch (reg->byte_size)
+ {
+ case 8:
+ type.append("64");
+ break;
+ case 4:
+ type.append("32");
+ break;
+ case 2:
+ type.append("16");
+ break;
+ case 1:
+ type.append("8");
+ break;
+ default:
+ m_error.SetErrorString("Invaild register size");
+ return nullptr;
+ }
+ ValueObjectSP regVal =
+ ValueObjectRegister::Create(m_frame.get(), reg_ctx_sp, reg->kinds[eRegisterKindLLDB]);
+ CompilerType goType = LookupType(m_frame->CalculateTarget(), ConstString(type));
+ if (regVal)
+ {
+ regVal = regVal->Cast(goType);
+ return regVal;
+ }
+ }
+ m_error.SetErrorString("Invaild register name");
+ return nullptr;
+ }
+ VariableListSP var_list_sp(m_frame->GetInScopeVariableList(false));
+ if (var_list_sp)
+ {
+ var_sp = var_list_sp->FindVariable(ConstString(varname));
+ if (var_sp)
+ val = m_frame->GetValueObjectForFrameVariable(var_sp, m_use_dynamic);
+ else
+ {
+ // When a variable is on the heap instead of the stack, go records a variable
+ // '&x' instead of 'x'.
+ var_sp = var_list_sp->FindVariable(ConstString("&" + varname));
+ if (var_sp)
+ {
+ val = m_frame->GetValueObjectForFrameVariable(var_sp, m_use_dynamic);
+ if (val)
+ val = val->Dereference(m_error);
+ if (m_error.Fail())
+ return nullptr;
+ }
+ }
+ }
+ if (!val)
+ {
+ m_error.Clear();
+ TargetSP target = m_frame->CalculateTarget();
+ if (!target)
+ {
+ m_error.SetErrorString("No target");
+ return nullptr;
+ }
+ var_sp = FindGlobalVariable(target, m_package + "." + e->GetName().m_value);
+ if (var_sp)
+ return m_frame->TrackGlobalVariable(var_sp, m_use_dynamic);
+ }
+ }
+ if (!val)
+ m_error.SetErrorStringWithFormat("Unknown variable %s", e->GetName().m_value.str().c_str());
+ return val;
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::VisitStarExpr(const GoASTStarExpr *e)
+{
+ ValueObjectSP target = EvaluateExpr(e->GetX());
+ if (!target)
+ return nullptr;
+ return target->Dereference(m_error);
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::VisitSelectorExpr(const lldb_private::GoASTSelectorExpr *e)
+{
+ ValueObjectSP target = EvaluateExpr(e->GetX());
+ if (target)
+ {
+ if (target->GetCompilerType().IsPointerType())
+ {
+ target = target->Dereference(m_error);
+ if (m_error.Fail())
+ return nullptr;
+ }
+ ConstString field(e->GetSel()->GetName().m_value);
+ ValueObjectSP result = target->GetChildMemberWithName(field, true);
+ if (!result)
+ m_error.SetErrorStringWithFormat("Unknown child %s", field.AsCString());
+ return result;
+ }
+ if (const GoASTIdent *package = llvm::dyn_cast<GoASTIdent>(e->GetX()))
+ {
+ if (VariableSP global = FindGlobalVariable(m_exe_ctx.GetTargetSP(),
+ package->GetName().m_value + "." + e->GetSel()->GetName().m_value))
+ {
+ if (m_frame)
+ {
+ m_error.Clear();
+ return m_frame->GetValueObjectForFrameVariable(global, m_use_dynamic);
+ }
+ }
+ }
+ if (const GoASTBasicLit *packageLit = llvm::dyn_cast<GoASTBasicLit>(e->GetX()))
+ {
+ if (packageLit->GetValue().m_type == GoLexer::LIT_STRING)
+ {
+ std::string value = packageLit->GetValue().m_value.str();
+ value = value.substr(1, value.size() - 2);
+ if (VariableSP global =
+ FindGlobalVariable(m_exe_ctx.GetTargetSP(), value + "." + e->GetSel()->GetName().m_value))
+ {
+ if (m_frame)
+ {
+ m_error.Clear();
+ return m_frame->TrackGlobalVariable(global, m_use_dynamic);
+ }
+ }
+ }
+ }
+ // EvaluateExpr should have already set m_error.
+ return target;
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::VisitBasicLit(const lldb_private::GoASTBasicLit *e)
+{
+ std::string value = e->GetValue().m_value.str();
+ if (e->GetValue().m_type != GoLexer::LIT_INTEGER)
+ {
+ m_error.SetErrorStringWithFormat("Unsupported literal %s", value.c_str());
+ return nullptr;
+ }
+ errno = 0;
+ int64_t intvalue = strtol(value.c_str(), nullptr, 0);
+ if (errno != 0)
+ {
+ m_error.SetErrorToErrno();
+ return nullptr;
+ }
+ DataBufferSP buf(new DataBufferHeap(sizeof(intvalue), 0));
+ TargetSP target = m_exe_ctx.GetTargetSP();
+ if (!target)
+ {
+ m_error.SetErrorString("No target");
+ return nullptr;
+ }
+ ByteOrder order = target->GetArchitecture().GetByteOrder();
+ uint8_t addr_size = target->GetArchitecture().GetAddressByteSize();
+ DataEncoder enc(buf, order, addr_size);
+ enc.PutU64(0, static_cast<uint64_t>(intvalue));
+ DataExtractor data(buf, order, addr_size);
+
+ CompilerType type = LookupType(target, ConstString("int64"));
+ return ValueObject::CreateValueObjectFromData(nullptr, data, m_exe_ctx, type);
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::VisitIndexExpr(const lldb_private::GoASTIndexExpr *e)
+{
+ ValueObjectSP target = EvaluateExpr(e->GetX());
+ if (!target)
+ return nullptr;
+ ValueObjectSP index = EvaluateExpr(e->GetIndex());
+ if (!index)
+ return nullptr;
+ bool is_signed;
+ if (!index->GetCompilerType().IsIntegerType(is_signed))
+ {
+ m_error.SetErrorString("Unsupported index");
+ return nullptr;
+ }
+ size_t idx;
+ if (is_signed)
+ idx = index->GetValueAsSigned(0);
+ else
+ idx = index->GetValueAsUnsigned(0);
+ if (GoASTContext::IsGoSlice(target->GetCompilerType()))
+ {
+ target = target->GetStaticValue();
+ ValueObjectSP cap = target->GetChildMemberWithName(ConstString("cap"), true);
+ if (cap)
+ {
+ uint64_t capval = cap->GetValueAsUnsigned(0);
+ if (idx >= capval)
+ {
+ m_error.SetErrorStringWithFormat("Invalid index %" PRIu64 " , cap = %" PRIu64, uint64_t(idx), capval);
+ return nullptr;
+ }
+ }
+ target = target->GetChildMemberWithName(ConstString("array"), true);
+ if (target && m_use_dynamic != eNoDynamicValues)
+ {
+ ValueObjectSP dynamic = target->GetDynamicValue(m_use_dynamic);
+ if (dynamic)
+ target = dynamic;
+ }
+ if (!target)
+ return nullptr;
+ return target->GetSyntheticArrayMember(idx, true);
+ }
+ return target->GetChildAtIndex(idx, true);
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::VisitUnaryExpr(const GoASTUnaryExpr *e)
+{
+ ValueObjectSP x = EvaluateExpr(e->GetX());
+ if (!x)
+ return nullptr;
+ switch (e->GetOp())
+ {
+ case GoLexer::OP_AMP:
+ {
+ CompilerType type = x->GetCompilerType().GetPointerType();
+ uint64_t address = x->GetAddressOf();
+ return ValueObject::CreateValueObjectFromAddress(nullptr, address, m_exe_ctx, type);
+ }
+ case GoLexer::OP_PLUS:
+ return x;
+ default:
+ m_error.SetErrorStringWithFormat("Operator %s not supported",
+ GoLexer::LookupToken(e->GetOp()).str().c_str());
+ return nullptr;
+ }
+}
+
+CompilerType
+GoUserExpression::GoInterpreter::EvaluateType(const GoASTExpr *e)
+{
+ TargetSP target = m_exe_ctx.GetTargetSP();
+ if (auto *id = llvm::dyn_cast<GoASTIdent>(e))
+ {
+ CompilerType result = LookupType(target, ConstString(id->GetName().m_value));
+ if (result.IsValid())
+ return result;
+ std::string fullname = (m_package + "." + id->GetName().m_value).str();
+ result = LookupType(target, ConstString(fullname));
+ if (!result)
+ m_error.SetErrorStringWithFormat("Unknown type %s", fullname.c_str());
+ return result;
+ }
+ if (auto *sel = llvm::dyn_cast<GoASTSelectorExpr>(e))
+ {
+ std::string package;
+ if (auto *pkg_node = llvm::dyn_cast<GoASTIdent>(sel->GetX()))
+ {
+ package = pkg_node->GetName().m_value.str();
+ }
+ else if (auto *str_node = llvm::dyn_cast<GoASTBasicLit>(sel->GetX()))
+ {
+ if (str_node->GetValue().m_type == GoLexer::LIT_STRING)
+ {
+ package = str_node->GetValue().m_value.substr(1).str();
+ package.resize(package.length() - 1);
+ }
+ }
+ if (package.empty())
+ {
+ m_error.SetErrorStringWithFormat("Invalid %s in type expression", sel->GetX()->GetKindName());
+ return CompilerType();
+ }
+ std::string fullname = (package + "." + sel->GetSel()->GetName().m_value).str();
+ CompilerType result = LookupType(target, ConstString(fullname));
+ if (!result)
+ m_error.SetErrorStringWithFormat("Unknown type %s", fullname.c_str());
+ return result;
+ }
+ if (auto *star = llvm::dyn_cast<GoASTStarExpr>(e))
+ {
+ CompilerType elem = EvaluateType(star->GetX());
+ return elem.GetPointerType();
+ }
+ if (auto *paren = llvm::dyn_cast<GoASTParenExpr>(e))
+ return EvaluateType(paren->GetX());
+ if (auto *array = llvm::dyn_cast<GoASTArrayType>(e))
+ {
+ CompilerType elem = EvaluateType(array->GetElt());
+ }
+
+ m_error.SetErrorStringWithFormat("Invalid %s in type expression", e->GetKindName());
+ return CompilerType();
+}
+
+ValueObjectSP
+GoUserExpression::GoInterpreter::VisitCallExpr(const lldb_private::GoASTCallExpr *e)
+{
+ ValueObjectSP x = EvaluateExpr(e->GetFun());
+ if (x || e->NumArgs() != 1)
+ {
+ m_error.SetErrorStringWithFormat("Code execution not supported");
+ return nullptr;
+ }
+ m_error.Clear();
+ CompilerType type = EvaluateType(e->GetFun());
+ if (!type)
+ {
+ return nullptr;
+ }
+ ValueObjectSP value = EvaluateExpr(e->GetArgs(0));
+ if (!value)
+ return nullptr;
+ // TODO: Handle special conversions
+ return value->Cast(type);
+}
+
+GoPersistentExpressionState::GoPersistentExpressionState() : PersistentExpressionState(eKindGo)
+{
+}
+
+ConstString
+GoPersistentExpressionState::GetNextPersistentVariableName()
+{
+ char name_cstr[256];
+ // We can't use the same variable format as clang.
+ ::snprintf(name_cstr, sizeof(name_cstr), "$go%u", m_next_persistent_variable_id++);
+ ConstString name(name_cstr);
+ return name;
+}
+
+void
+GoPersistentExpressionState::RemovePersistentVariable(lldb::ExpressionVariableSP variable)
+{
+ RemoveVariable(variable);
+
+ const char *name = variable->GetName().AsCString();
+
+ if (*(name++) != '$')
+ return;
+ if (*(name++) != 'g')
+ return;
+ if (*(name++) != 'o')
+ return;
+
+ if (strtoul(name, nullptr, 0) == m_next_persistent_variable_id - 1)
+ m_next_persistent_variable_id--;
+}
diff --git a/source/Plugins/ExpressionParser/Go/GoUserExpression.h b/source/Plugins/ExpressionParser/Go/GoUserExpression.h
new file mode 100644
index 0000000000000..b429c68f023d5
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Go/GoUserExpression.h
@@ -0,0 +1,98 @@
+//===-- GoUserExpression.h --------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_GoUserExpression_h_
+#define liblldb_GoUserExpression_h_
+
+// C Includes
+// C++ Includes
+#include <memory>
+
+// Other libraries and framework includes
+// Project includes
+#include "lldb/lldb-forward.h"
+#include "lldb/lldb-private.h"
+#include "lldb/Expression/UserExpression.h"
+#include "lldb/Expression/ExpressionVariable.h"
+#include "lldb/Target/ExecutionContext.h"
+
+namespace lldb_private
+{
+class GoParser;
+
+class GoPersistentExpressionState : public PersistentExpressionState
+{
+ public:
+ GoPersistentExpressionState();
+
+ ConstString GetNextPersistentVariableName() override;
+
+ void RemovePersistentVariable(lldb::ExpressionVariableSP variable) override;
+
+ lldb::addr_t
+ LookupSymbol(const ConstString &name) override
+ {
+ return LLDB_INVALID_ADDRESS;
+ }
+
+ static bool
+ classof(const PersistentExpressionState *pv)
+ {
+ return pv->getKind() == PersistentExpressionState::eKindGo;
+ }
+
+ private:
+ uint32_t m_next_persistent_variable_id; ///< The counter used by GetNextResultName().
+};
+
+//----------------------------------------------------------------------
+/// @class GoUserExpression GoUserExpression.h "lldb/Expression/GoUserExpression.h"
+/// @brief Encapsulates a single expression for use with Go
+///
+/// LLDB uses expressions for various purposes, notably to call functions
+/// and as a backend for the expr command. GoUserExpression encapsulates
+/// the objects needed to parse and interpret an expression.
+//----------------------------------------------------------------------
+class GoUserExpression : public UserExpression
+{
+ public:
+ GoUserExpression(ExecutionContextScope &exe_scope, const char *expr, const char *expr_prefix,
+ lldb::LanguageType language, ResultType desired_type, const EvaluateExpressionOptions &options);
+
+ bool
+ Parse(Stream &error_stream, ExecutionContext &exe_ctx, lldb_private::ExecutionPolicy execution_policy,
+ bool keep_result_in_memory, bool generate_debug_info) override;
+
+ lldb::ExpressionResults
+ Execute(Stream &error_stream, ExecutionContext &exe_ctx,
+ const EvaluateExpressionOptions &options,
+ lldb::UserExpressionSP &shared_ptr_to_me,
+ lldb::ExpressionVariableSP &result) override;
+
+ bool
+ CanInterpret() override
+ {
+ return true;
+ }
+ bool
+ FinalizeJITExecution(Stream &error_stream, ExecutionContext &exe_ctx, lldb::ExpressionVariableSP &result,
+ lldb::addr_t function_stack_bottom = LLDB_INVALID_ADDRESS,
+ lldb::addr_t function_stack_top = LLDB_INVALID_ADDRESS) override
+ {
+ return true;
+ }
+
+ private:
+ class GoInterpreter;
+ std::unique_ptr<GoInterpreter> m_interpreter;
+};
+
+} // namespace lldb_private
+
+#endif // liblldb_GoUserExpression_h_
diff --git a/source/Plugins/ExpressionParser/Go/gen_go_ast.py b/source/Plugins/ExpressionParser/Go/gen_go_ast.py
new file mode 100644
index 0000000000000..05b589a9976cb
--- /dev/null
+++ b/source/Plugins/ExpressionParser/Go/gen_go_ast.py
@@ -0,0 +1,356 @@
+import StringIO
+
+def addNodes():
+ addNode("ArrayType", "Expr", "len", "Expr", "elt", "Expr")
+ addNode("AssignStmt", "Stmt", "lhs", "[]Expr", "rhs", "[]Expr", "define", "bool")
+ addNode("BadDecl", "Decl")
+ addNode("BadExpr", "Expr")
+ addNode("BadStmt", "Stmt")
+ addNode("BasicLit", "Expr", "value", "Token")
+ addNode("BinaryExpr", "Expr", "x", "Expr", "y", "Expr", "op", "TokenType")
+ addNode("BlockStmt", "Stmt", "list", "[]Stmt")
+ addNode("Ident", "Expr", "name", "Token")
+ addNode("BranchStmt", "Stmt", "label", "Ident", "tok", "TokenType")
+ addNode("CallExpr", "Expr", "fun", "Expr", "args", "[]Expr", "ellipsis", "bool")
+ addNode("CaseClause", "Stmt", "list", "[]Expr", "body", "[]Stmt")
+ addNode("ChanType", "Expr", "dir", "ChanDir", "value", "Expr")
+ addNode("CommClause", "Stmt", "comm", "Stmt", "body", "[]Stmt")
+ addNode("CompositeLit", "Expr", "type", "Expr", "elts", "[]Expr")
+ addNode("DeclStmt", "Stmt", "decl", "Decl")
+ addNode("DeferStmt", "Stmt", "call", "CallExpr")
+ addNode("Ellipsis", "Expr", "elt", "Expr")
+ addNode("EmptyStmt", "Stmt")
+ addNode("ExprStmt", "Stmt", "x", "Expr")
+ addNode("Field", "Node", "names", "[]Ident", "type", "Expr", "tag", "BasicLit")
+ addNode("FieldList", "Node", "list", "[]Field")
+ addNode("ForStmt", "Stmt", "init", "Stmt", "cond", "Expr", "post", "Stmt", "body", "BlockStmt")
+ addNode("FuncType", "Expr", "params", "FieldList", "results", "FieldList")
+ addNode("FuncDecl", "Decl", "recv", "FieldList", "name", "Ident", "type", "FuncType", "body", "BlockStmt")
+ addNode("FuncLit", "Expr", "type", "FuncType", "body", "BlockStmt")
+ addNode("GenDecl", "Decl", "tok", "TokenType", "specs", "[]Spec")
+ addNode("GoStmt", "Stmt", "call", "CallExpr")
+ addNode("IfStmt", "Stmt", "init", "Stmt", "cond", "Expr", "body", "BlockStmt", "els", "Stmt")
+ addNode("ImportSpec", "Spec", "name", "Ident", "path", "BasicLit")
+ addNode("IncDecStmt", "Stmt", "x", "Expr", "tok", "TokenType")
+ addNode("IndexExpr", "Expr", "x", "Expr", "index", "Expr")
+ addNode("InterfaceType", "Expr", "methods", "FieldList")
+ addNode("KeyValueExpr", "Expr", "key", "Expr", "value", "Expr")
+ addNode("LabeledStmt", "Stmt", "label", "Ident", "stmt", "Stmt")
+ addNode("MapType", "Expr", "key", "Expr", "value", "Expr")
+ addNode("ParenExpr", "Expr", "x", "Expr")
+ addNode("RangeStmt", "Stmt", "key", "Expr", "value", "Expr", "define", "bool", "x", "Expr", "body", "BlockStmt")
+ addNode("ReturnStmt", "Stmt", "results", "[]Expr")
+ addNode("SelectStmt", "Stmt", "body", "BlockStmt")
+ addNode("SelectorExpr", "Expr", "x", "Expr", "sel", "Ident")
+ addNode("SendStmt", "Stmt", "chan", "Expr", "value", "Expr")
+ addNode("SliceExpr", "Expr", "x", "Expr", "low", "Expr", "high", "Expr", "max", "Expr", "slice3", "bool")
+ addNode("StarExpr", "Expr", "x", "Expr")
+ addNode("StructType", "Expr", "fields", "FieldList")
+ addNode("SwitchStmt", "Stmt", "init", "Stmt", "tag", "Expr", "body", "BlockStmt")
+ addNode("TypeAssertExpr", "Expr", "x", "Expr", "type", "Expr")
+ addNode("TypeSpec", "Spec", "name", "Ident", "type", "Expr")
+ addNode("TypeSwitchStmt", "Stmt", "init", "Stmt", "assign", "Stmt", "body", "BlockStmt")
+ addNode("UnaryExpr", "Expr", "op", "TokenType", "x", "Expr")
+ addNode("ValueSpec", "Spec", "names", "[]Ident", "type", "Expr", "values", "[]Expr")
+ addParent("Decl", "Node")
+ addParent("Expr", "Node")
+ addParent("Spec", "Node")
+ addParent("Stmt", "Node")
+
+
+class Member(object):
+ def __init__(self, name, typename):
+ self.title = name.title()
+ self.sname = name
+ self.mname = 'm_' + name
+ self.is_list = typename.startswith("[]")
+ self.is_value = isValueType(typename)
+ if self.is_value:
+ self.argtype = typename
+ self.mtype = typename
+ elif self.is_list:
+ self.argtype = 'GoAST' + typename[2:]
+ self.mtype = 'std::vector<std::unique_ptr<%s> >' % self.argtype
+ else:
+ self.argtype = 'GoAST' + typename
+ self.mtype = 'std::unique_ptr<%s>' % self.argtype
+ self.mname = self.mname + '_up'
+
+
+kinds = {}
+parentClasses = StringIO.StringIO()
+childClasses = StringIO.StringIO()
+walker = StringIO.StringIO()
+
+def startClass(name, parent, out):
+ out.write("""
+class GoAST%s : public GoAST%s
+{
+ public:
+""" % (name, parent))
+
+def endClass(name, out):
+ out.write("""
+ %(name)s(const %(name)s &) = delete;
+ const %(name)s &operator=(const %(name)s &) = delete;
+};
+""" % {'name': 'GoAST' + name})
+
+def addNode(name, parent, *children):
+ startClass(name, parent, childClasses)
+ l = kinds.setdefault(parent, [])
+ l.append(name)
+ children = createMembers(name, children)
+ addConstructor(name, parent, children)
+ childClasses.write("""
+ const char *
+ GetKindName() const override
+ {
+ return "%(name)s";
+ }
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() == e%(name)s;
+ }
+ """ % {'name':name})
+ addChildren(name, children)
+ endClass(name, childClasses)
+
+def isValueType(typename):
+ if typename[0].islower():
+ return True
+ if typename[0].isupper():
+ return typename.startswith('Token') or typename == 'ChanDir'
+ return False
+
+
+def createMembers(name, children):
+ l = len(children)
+ if (l % 2) != 0:
+ raise Exception("Invalid children for %s: %s" % (name, children))
+ return [Member(children[i], children[i + 1]) for i in xrange(0, l, 2)]
+
+
+def addConstructor(name, parent, children):
+ for c in children:
+ if c.is_list:
+ children = [x for x in children if x.is_value]
+ break
+ childClasses.write(' ')
+ if len(children) == 1:
+ childClasses.write('explicit ')
+ childClasses.write('GoAST%s(' % name)
+ for i in xrange(len(children)):
+ if i > 0:
+ childClasses.write(', ')
+
+ c = children[i]
+ if c.is_value:
+ childClasses.write(c.argtype)
+ childClasses.write(' ')
+ else:
+ childClasses.write('%s *' % c.argtype)
+ childClasses.write(c.sname)
+ childClasses.write(') : GoAST%s(e%s)' % (parent, name))
+ for c in children:
+ childClasses.write(', ')
+ childClasses.write('%(mname)s(%(sname)s)' % c.__dict__)
+ childClasses.write(""" {}
+ ~GoAST%s() override = default;
+""" % name)
+
+
+def addChildren(name, children):
+ if len(children) == 0:
+ return
+ walker.write("""
+ case e%(n)s:
+ {
+ GoAST%(n)s *n = llvm::cast<GoAST%(n)s>(this);
+ (void)n;""" % {'n':name})
+ for c in children:
+ if c.is_list:
+ childClasses.write("""
+ size_t
+ Num%(title)s() const
+ {
+ return %(mname)s.size();
+ }
+ const %(argtype)s *
+ Get%(title)s(int i) const
+ {
+ return %(mname)s[i].get();
+ }
+ void
+ Add%(title)s(%(argtype)s *%(sname)s)
+ {
+ %(mname)s.push_back(std::unique_ptr<%(argtype)s>(%(sname)s));
+ }
+""" % c.__dict__)
+ walker.write("""
+ for (auto& e : n->%s) { v(e.get()); }""" % c.mname)
+ else:
+ const = ''
+ get = ''
+ set = ''
+ t = c.argtype
+ if isValueType(t):
+ set = '%(mname)s = %(sname)s' % c.__dict__
+ t = t + ' '
+ else:
+ t = t + ' *'
+ const = 'const '
+ get = '.get()'
+ set = '%(mname)s.reset(%(sname)s)' % c.__dict__
+ walker.write("""
+ v(n->%s.get());""" % c.mname)
+ childClasses.write("""
+ %(const)s%(type)s
+ Get%(title)s() const
+ {
+ return %(mname)s%(get)s;
+ }
+ void
+ Set%(title)s(%(type)s%(sname)s)
+ {
+ %(set)s;
+ }
+""" % {'const':const, 'title': c.title, 'sname': c.sname, 'get': get, 'set': set, 'type': t, 'mname': c.mname})
+ childClasses.write('\n private:\n friend class GoASTNode;\n')
+ walker.write("""
+ return;
+ }""")
+ for c in children:
+ childClasses.write(' %s %s;\n' %(c.mtype, c.mname))
+
+
+def addParent(name, parent):
+ startClass(name, parent, parentClasses)
+ l = kinds[name]
+ minName = l[0]
+ maxName = l[-1]
+ parentClasses.write(""" template <typename R, typename V> R Visit(V *v) const;
+
+ static bool
+ classof(const GoASTNode *n)
+ {
+ return n->GetKind() >= e%s && n->GetKind() <= e%s;
+ }
+
+ protected:
+ explicit GoAST%s(NodeKind kind) : GoASTNode(kind) { }
+ private:
+""" % (minName, maxName, name))
+ endClass(name, parentClasses)
+
+addNodes()
+
+print """//===-- GoAST.h -------------------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// DO NOT EDIT.
+// Generated by gen_go_ast.py
+
+#ifndef liblldb_GoAST_h
+#define liblldb_GoAST_h
+
+#include "lldb/lldb-forward.h"
+#include "lldb/lldb-private.h"
+#include "llvm/Support/Casting.h"
+#include "Plugins/ExpressionParser/Go/GoLexer.h"
+
+namespace lldb_private
+{
+
+class GoASTNode
+{
+ public:
+ typedef GoLexer::TokenType TokenType;
+ typedef GoLexer::Token Token;
+ enum ChanDir
+ {
+ eChanBidir,
+ eChanSend,
+ eChanRecv,
+ };
+ enum NodeKind
+ {"""
+for l in kinds.itervalues():
+ for x in l:
+ print " e%s," % x
+print """ };
+
+ virtual ~GoASTNode() = default;
+
+ NodeKind
+ GetKind() const
+ {
+ return m_kind;
+ }
+
+ virtual const char *GetKindName() const = 0;
+
+ template <typename V> void WalkChildren(V &v);
+
+ protected:
+ explicit GoASTNode(NodeKind kind) : m_kind(kind) { }
+
+ private:
+ const NodeKind m_kind;
+
+ GoASTNode(const GoASTNode &) = delete;
+ const GoASTNode &operator=(const GoASTNode &) = delete;
+};
+"""
+
+
+print parentClasses.getvalue()
+print childClasses.getvalue()
+
+for k, l in kinds.iteritems():
+ if k == 'Node':
+ continue
+ print """
+template <typename R, typename V>
+R GoAST%s::Visit(V* v) const
+{
+ switch(GetKind())
+ {""" % k
+ for subtype in l:
+ print """ case e%(n)s:
+ return v->Visit%(n)s(llvm::cast<const GoAST%(n)s>(this));""" % {'n':subtype}
+
+ print """ default:
+ assert(false && "Invalid kind");
+ }
+}"""
+
+print """
+template <typename V>
+void GoASTNode::WalkChildren(V &v)
+{
+ switch (m_kind)
+ {
+"""
+print walker.getvalue()
+print"""
+ case eEmptyStmt:
+ case eBadDecl:
+ case eBadExpr:
+ case eBadStmt:
+ break;
+ }
+}
+
+} // namespace lldb_private
+
+#endif
+"""
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-28 03:23:43 +0000