diff options
Diffstat (limited to 'contrib/llvm-project/lldb/source/Core/FormatEntity.cpp')
| -rw-r--r-- | contrib/llvm-project/lldb/source/Core/FormatEntity.cpp | 2427 |
1 files changed, 2427 insertions, 0 deletions
diff --git a/contrib/llvm-project/lldb/source/Core/FormatEntity.cpp b/contrib/llvm-project/lldb/source/Core/FormatEntity.cpp new file mode 100644 index 000000000000..1ffbed2cd64e --- /dev/null +++ b/contrib/llvm-project/lldb/source/Core/FormatEntity.cpp @@ -0,0 +1,2427 @@ +//===-- FormatEntity.cpp ----------------------------------------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include "lldb/Core/FormatEntity.h" + +#include "lldb/Core/Address.h" +#include "lldb/Core/AddressRange.h" +#include "lldb/Core/Debugger.h" +#include "lldb/Core/DumpRegisterValue.h" +#include "lldb/Core/Module.h" +#include "lldb/Core/ValueObject.h" +#include "lldb/Core/ValueObjectVariable.h" +#include "lldb/DataFormatters/DataVisualization.h" +#include "lldb/DataFormatters/FormatClasses.h" +#include "lldb/DataFormatters/FormatManager.h" +#include "lldb/DataFormatters/TypeSummary.h" +#include "lldb/Expression/ExpressionVariable.h" +#include "lldb/Interpreter/CommandInterpreter.h" +#include "lldb/Symbol/Block.h" +#include "lldb/Symbol/CompileUnit.h" +#include "lldb/Symbol/CompilerType.h" +#include "lldb/Symbol/Function.h" +#include "lldb/Symbol/LineEntry.h" +#include "lldb/Symbol/Symbol.h" +#include "lldb/Symbol/SymbolContext.h" +#include "lldb/Symbol/VariableList.h" +#include "lldb/Target/ExecutionContext.h" +#include "lldb/Target/ExecutionContextScope.h" +#include "lldb/Target/Language.h" +#include "lldb/Target/Process.h" +#include "lldb/Target/RegisterContext.h" +#include "lldb/Target/SectionLoadList.h" +#include "lldb/Target/StackFrame.h" +#include "lldb/Target/StopInfo.h" +#include "lldb/Target/Target.h" +#include "lldb/Target/Thread.h" +#include "lldb/Utility/AnsiTerminal.h" +#include "lldb/Utility/ArchSpec.h" +#include "lldb/Utility/ConstString.h" +#include "lldb/Utility/FileSpec.h" +#include "lldb/Utility/Log.h" +#include "lldb/Utility/Logging.h" +#include "lldb/Utility/RegisterValue.h" +#include "lldb/Utility/SharingPtr.h" +#include "lldb/Utility/Stream.h" +#include "lldb/Utility/StreamString.h" +#include "lldb/Utility/StringList.h" +#include "lldb/Utility/StructuredData.h" +#include "lldb/lldb-defines.h" +#include "lldb/lldb-forward.h" +#include "llvm/ADT/STLExtras.h" +#include "llvm/ADT/StringRef.h" +#include "llvm/ADT/Triple.h" +#include "llvm/Support/Compiler.h" + +#include <ctype.h> +#include <inttypes.h> +#include <memory> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <type_traits> +#include <utility> + +namespace lldb_private { +class ScriptInterpreter; +} +namespace lldb_private { +struct RegisterInfo; +} + +using namespace lldb; +using namespace lldb_private; + +enum FileKind { FileError = 0, Basename, Dirname, Fullpath }; + +#define ENTRY(n, t) \ + { n, nullptr, FormatEntity::Entry::Type::t, 0, 0, nullptr, false } +#define ENTRY_VALUE(n, t, v) \ + { n, nullptr, FormatEntity::Entry::Type::t, v, 0, nullptr, false } +#define ENTRY_CHILDREN(n, t, c) \ + { \ + n, nullptr, FormatEntity::Entry::Type::t, 0, \ + static_cast<uint32_t>(llvm::array_lengthof(c)), c, false \ + } +#define ENTRY_CHILDREN_KEEP_SEP(n, t, c) \ + { \ + n, nullptr, FormatEntity::Entry::Type::t, 0, \ + static_cast<uint32_t>(llvm::array_lengthof(c)), c, true \ + } +#define ENTRY_STRING(n, s) \ + { n, s, FormatEntity::Entry::Type::EscapeCode, 0, 0, nullptr, false } +static FormatEntity::Entry::Definition g_string_entry[] = { + ENTRY("*", ParentString)}; + +static FormatEntity::Entry::Definition g_addr_entries[] = { + ENTRY("load", AddressLoad), + ENTRY("file", AddressFile), + ENTRY("load", AddressLoadOrFile), +}; + +static FormatEntity::Entry::Definition g_file_child_entries[] = { + ENTRY_VALUE("basename", ParentNumber, FileKind::Basename), + ENTRY_VALUE("dirname", ParentNumber, FileKind::Dirname), + ENTRY_VALUE("fullpath", ParentNumber, FileKind::Fullpath)}; + +static FormatEntity::Entry::Definition g_frame_child_entries[] = { + ENTRY("index", FrameIndex), + ENTRY("pc", FrameRegisterPC), + ENTRY("fp", FrameRegisterFP), + ENTRY("sp", FrameRegisterSP), + ENTRY("flags", FrameRegisterFlags), + ENTRY("no-debug", FrameNoDebug), + ENTRY_CHILDREN("reg", FrameRegisterByName, g_string_entry), + ENTRY("is-artificial", FrameIsArtificial), +}; + +static FormatEntity::Entry::Definition g_function_child_entries[] = { + ENTRY("id", FunctionID), + ENTRY("name", FunctionName), + ENTRY("name-without-args", FunctionNameNoArgs), + ENTRY("name-with-args", FunctionNameWithArgs), + ENTRY("addr-offset", FunctionAddrOffset), + ENTRY("concrete-only-addr-offset-no-padding", FunctionAddrOffsetConcrete), + ENTRY("line-offset", FunctionLineOffset), + ENTRY("pc-offset", FunctionPCOffset), + ENTRY("initial-function", FunctionInitial), + ENTRY("changed", FunctionChanged), + ENTRY("is-optimized", FunctionIsOptimized)}; + +static FormatEntity::Entry::Definition g_line_child_entries[] = { + ENTRY_CHILDREN("file", LineEntryFile, g_file_child_entries), + ENTRY("number", LineEntryLineNumber), + ENTRY("column", LineEntryColumn), + ENTRY("start-addr", LineEntryStartAddress), + ENTRY("end-addr", LineEntryEndAddress), +}; + +static FormatEntity::Entry::Definition g_module_child_entries[] = { + ENTRY_CHILDREN("file", ModuleFile, g_file_child_entries), +}; + +static FormatEntity::Entry::Definition g_process_child_entries[] = { + ENTRY("id", ProcessID), + ENTRY_VALUE("name", ProcessFile, FileKind::Basename), + ENTRY_CHILDREN("file", ProcessFile, g_file_child_entries), +}; + +static FormatEntity::Entry::Definition g_svar_child_entries[] = { + ENTRY("*", ParentString)}; + +static FormatEntity::Entry::Definition g_var_child_entries[] = { + ENTRY("*", ParentString)}; + +static FormatEntity::Entry::Definition g_thread_child_entries[] = { + ENTRY("id", ThreadID), + ENTRY("protocol_id", ThreadProtocolID), + ENTRY("index", ThreadIndexID), + ENTRY_CHILDREN("info", ThreadInfo, g_string_entry), + ENTRY("queue", ThreadQueue), + ENTRY("name", ThreadName), + ENTRY("stop-reason", ThreadStopReason), + ENTRY("return-value", ThreadReturnValue), + ENTRY("completed-expression", ThreadCompletedExpression), +}; + +static FormatEntity::Entry::Definition g_target_child_entries[] = { + ENTRY("arch", TargetArch), +}; + +#define _TO_STR2(_val) #_val +#define _TO_STR(_val) _TO_STR2(_val) + +static FormatEntity::Entry::Definition g_ansi_fg_entries[] = { + ENTRY_STRING("black", + ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_BLACK) ANSI_ESC_END), + ENTRY_STRING("red", ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_RED) ANSI_ESC_END), + ENTRY_STRING("green", + ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_GREEN) ANSI_ESC_END), + ENTRY_STRING("yellow", + ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_YELLOW) ANSI_ESC_END), + ENTRY_STRING("blue", + ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_BLUE) ANSI_ESC_END), + ENTRY_STRING("purple", + ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_PURPLE) ANSI_ESC_END), + ENTRY_STRING("cyan", + ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_CYAN) ANSI_ESC_END), + ENTRY_STRING("white", + ANSI_ESC_START _TO_STR(ANSI_FG_COLOR_WHITE) ANSI_ESC_END), +}; + +static FormatEntity::Entry::Definition g_ansi_bg_entries[] = { + ENTRY_STRING("black", + ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_BLACK) ANSI_ESC_END), + ENTRY_STRING("red", ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_RED) ANSI_ESC_END), + ENTRY_STRING("green", + ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_GREEN) ANSI_ESC_END), + ENTRY_STRING("yellow", + ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_YELLOW) ANSI_ESC_END), + ENTRY_STRING("blue", + ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_BLUE) ANSI_ESC_END), + ENTRY_STRING("purple", + ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_PURPLE) ANSI_ESC_END), + ENTRY_STRING("cyan", + ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_CYAN) ANSI_ESC_END), + ENTRY_STRING("white", + ANSI_ESC_START _TO_STR(ANSI_BG_COLOR_WHITE) ANSI_ESC_END), +}; + +static FormatEntity::Entry::Definition g_ansi_entries[] = { + ENTRY_CHILDREN("fg", Invalid, g_ansi_fg_entries), + ENTRY_CHILDREN("bg", Invalid, g_ansi_bg_entries), + ENTRY_STRING("normal", + ANSI_ESC_START _TO_STR(ANSI_CTRL_NORMAL) ANSI_ESC_END), + ENTRY_STRING("bold", ANSI_ESC_START _TO_STR(ANSI_CTRL_BOLD) ANSI_ESC_END), + ENTRY_STRING("faint", ANSI_ESC_START _TO_STR(ANSI_CTRL_FAINT) ANSI_ESC_END), + ENTRY_STRING("italic", + ANSI_ESC_START _TO_STR(ANSI_CTRL_ITALIC) ANSI_ESC_END), + ENTRY_STRING("underline", + ANSI_ESC_START _TO_STR(ANSI_CTRL_UNDERLINE) ANSI_ESC_END), + ENTRY_STRING("slow-blink", + ANSI_ESC_START _TO_STR(ANSI_CTRL_SLOW_BLINK) ANSI_ESC_END), + ENTRY_STRING("fast-blink", + ANSI_ESC_START _TO_STR(ANSI_CTRL_FAST_BLINK) ANSI_ESC_END), + ENTRY_STRING("negative", + ANSI_ESC_START _TO_STR(ANSI_CTRL_IMAGE_NEGATIVE) ANSI_ESC_END), + ENTRY_STRING("conceal", + ANSI_ESC_START _TO_STR(ANSI_CTRL_CONCEAL) ANSI_ESC_END), + ENTRY_STRING("crossed-out", + ANSI_ESC_START _TO_STR(ANSI_CTRL_CROSSED_OUT) ANSI_ESC_END), +}; + +static FormatEntity::Entry::Definition g_script_child_entries[] = { + ENTRY("frame", ScriptFrame), ENTRY("process", ScriptProcess), + ENTRY("target", ScriptTarget), ENTRY("thread", ScriptThread), + ENTRY("var", ScriptVariable), ENTRY("svar", ScriptVariableSynthetic), + ENTRY("thread", ScriptThread), +}; + +static FormatEntity::Entry::Definition g_top_level_entries[] = { + ENTRY_CHILDREN("addr", AddressLoadOrFile, g_addr_entries), + ENTRY("addr-file-or-load", AddressLoadOrFile), + ENTRY_CHILDREN("ansi", Invalid, g_ansi_entries), + ENTRY("current-pc-arrow", CurrentPCArrow), + ENTRY_CHILDREN("file", File, g_file_child_entries), + ENTRY("language", Lang), + ENTRY_CHILDREN("frame", Invalid, g_frame_child_entries), + ENTRY_CHILDREN("function", Invalid, g_function_child_entries), + ENTRY_CHILDREN("line", Invalid, g_line_child_entries), + ENTRY_CHILDREN("module", Invalid, g_module_child_entries), + ENTRY_CHILDREN("process", Invalid, g_process_child_entries), + ENTRY_CHILDREN("script", Invalid, g_script_child_entries), + ENTRY_CHILDREN_KEEP_SEP("svar", VariableSynthetic, g_svar_child_entries), + ENTRY_CHILDREN("thread", Invalid, g_thread_child_entries), + ENTRY_CHILDREN("target", Invalid, g_target_child_entries), + ENTRY_CHILDREN_KEEP_SEP("var", Variable, g_var_child_entries), +}; + +static FormatEntity::Entry::Definition g_root = + ENTRY_CHILDREN("<root>", Root, g_top_level_entries); + +FormatEntity::Entry::Entry(llvm::StringRef s) + : string(s.data(), s.size()), printf_format(), children(), + definition(nullptr), type(Type::String), fmt(lldb::eFormatDefault), + number(0), deref(false) {} + +FormatEntity::Entry::Entry(char ch) + : string(1, ch), printf_format(), children(), definition(nullptr), + type(Type::String), fmt(lldb::eFormatDefault), number(0), deref(false) {} + +void FormatEntity::Entry::AppendChar(char ch) { + if (children.empty() || children.back().type != Entry::Type::String) + children.push_back(Entry(ch)); + else + children.back().string.append(1, ch); +} + +void FormatEntity::Entry::AppendText(const llvm::StringRef &s) { + if (children.empty() || children.back().type != Entry::Type::String) + children.push_back(Entry(s)); + else + children.back().string.append(s.data(), s.size()); +} + +void FormatEntity::Entry::AppendText(const char *cstr) { + return AppendText(llvm::StringRef(cstr)); +} + +Status FormatEntity::Parse(const llvm::StringRef &format_str, Entry &entry) { + entry.Clear(); + entry.type = Entry::Type::Root; + llvm::StringRef modifiable_format(format_str); + return ParseInternal(modifiable_format, entry, 0); +} + +#define ENUM_TO_CSTR(eee) \ + case FormatEntity::Entry::Type::eee: \ + return #eee + +const char *FormatEntity::Entry::TypeToCString(Type t) { + switch (t) { + ENUM_TO_CSTR(Invalid); + ENUM_TO_CSTR(ParentNumber); + ENUM_TO_CSTR(ParentString); + ENUM_TO_CSTR(EscapeCode); + ENUM_TO_CSTR(Root); + ENUM_TO_CSTR(String); + ENUM_TO_CSTR(Scope); + ENUM_TO_CSTR(Variable); + ENUM_TO_CSTR(VariableSynthetic); + ENUM_TO_CSTR(ScriptVariable); + ENUM_TO_CSTR(ScriptVariableSynthetic); + ENUM_TO_CSTR(AddressLoad); + ENUM_TO_CSTR(AddressFile); + ENUM_TO_CSTR(AddressLoadOrFile); + ENUM_TO_CSTR(ProcessID); + ENUM_TO_CSTR(ProcessFile); + ENUM_TO_CSTR(ScriptProcess); + ENUM_TO_CSTR(ThreadID); + ENUM_TO_CSTR(ThreadProtocolID); + ENUM_TO_CSTR(ThreadIndexID); + ENUM_TO_CSTR(ThreadName); + ENUM_TO_CSTR(ThreadQueue); + ENUM_TO_CSTR(ThreadStopReason); + ENUM_TO_CSTR(ThreadReturnValue); + ENUM_TO_CSTR(ThreadCompletedExpression); + ENUM_TO_CSTR(ScriptThread); + ENUM_TO_CSTR(ThreadInfo); + ENUM_TO_CSTR(TargetArch); + ENUM_TO_CSTR(ScriptTarget); + ENUM_TO_CSTR(ModuleFile); + ENUM_TO_CSTR(File); + ENUM_TO_CSTR(Lang); + ENUM_TO_CSTR(FrameIndex); + ENUM_TO_CSTR(FrameNoDebug); + ENUM_TO_CSTR(FrameRegisterPC); + ENUM_TO_CSTR(FrameRegisterSP); + ENUM_TO_CSTR(FrameRegisterFP); + ENUM_TO_CSTR(FrameRegisterFlags); + ENUM_TO_CSTR(FrameRegisterByName); + ENUM_TO_CSTR(FrameIsArtificial); + ENUM_TO_CSTR(ScriptFrame); + ENUM_TO_CSTR(FunctionID); + ENUM_TO_CSTR(FunctionDidChange); + ENUM_TO_CSTR(FunctionInitialFunction); + ENUM_TO_CSTR(FunctionName); + ENUM_TO_CSTR(FunctionNameWithArgs); + ENUM_TO_CSTR(FunctionNameNoArgs); + ENUM_TO_CSTR(FunctionAddrOffset); + ENUM_TO_CSTR(FunctionAddrOffsetConcrete); + ENUM_TO_CSTR(FunctionLineOffset); + ENUM_TO_CSTR(FunctionPCOffset); + ENUM_TO_CSTR(FunctionInitial); + ENUM_TO_CSTR(FunctionChanged); + ENUM_TO_CSTR(FunctionIsOptimized); + ENUM_TO_CSTR(LineEntryFile); + ENUM_TO_CSTR(LineEntryLineNumber); + ENUM_TO_CSTR(LineEntryColumn); + ENUM_TO_CSTR(LineEntryStartAddress); + ENUM_TO_CSTR(LineEntryEndAddress); + ENUM_TO_CSTR(CurrentPCArrow); + } + return "???"; +} + +#undef ENUM_TO_CSTR + +void FormatEntity::Entry::Dump(Stream &s, int depth) const { + s.Printf("%*.*s%-20s: ", depth * 2, depth * 2, "", TypeToCString(type)); + if (fmt != eFormatDefault) + s.Printf("lldb-format = %s, ", FormatManager::GetFormatAsCString(fmt)); + if (!string.empty()) + s.Printf("string = \"%s\"", string.c_str()); + if (!printf_format.empty()) + s.Printf("printf_format = \"%s\"", printf_format.c_str()); + if (number != 0) + s.Printf("number = %" PRIu64 " (0x%" PRIx64 "), ", number, number); + if (deref) + s.Printf("deref = true, "); + s.EOL(); + for (const auto &child : children) { + child.Dump(s, depth + 1); + } +} + +template <typename T> +static bool RunScriptFormatKeyword(Stream &s, const SymbolContext *sc, + const ExecutionContext *exe_ctx, T t, + const char *script_function_name) { + Target *target = Target::GetTargetFromContexts(exe_ctx, sc); + + if (target) { + ScriptInterpreter *script_interpreter = + target->GetDebugger().GetScriptInterpreter(); + if (script_interpreter) { + Status error; + std::string script_output; + + if (script_interpreter->RunScriptFormatKeyword(script_function_name, t, + script_output, error) && + error.Success()) { + s.Printf("%s", script_output.c_str()); + return true; + } else { + s.Printf("<error: %s>", error.AsCString()); + } + } + } + return false; +} + +static bool DumpAddress(Stream &s, const SymbolContext *sc, + const ExecutionContext *exe_ctx, const Address &addr, + bool print_file_addr_or_load_addr) { + Target *target = Target::GetTargetFromContexts(exe_ctx, sc); + addr_t vaddr = LLDB_INVALID_ADDRESS; + if (exe_ctx && !target->GetSectionLoadList().IsEmpty()) + vaddr = addr.GetLoadAddress(target); + if (vaddr == LLDB_INVALID_ADDRESS) + vaddr = addr.GetFileAddress(); + + if (vaddr != LLDB_INVALID_ADDRESS) { + int addr_width = 0; + if (exe_ctx && target) { + addr_width = target->GetArchitecture().GetAddressByteSize() * 2; + } + if (addr_width == 0) + addr_width = 16; + if (print_file_addr_or_load_addr) { + ExecutionContextScope *exe_scope = nullptr; + if (exe_ctx) + exe_scope = exe_ctx->GetBestExecutionContextScope(); + addr.Dump(&s, exe_scope, Address::DumpStyleLoadAddress, + Address::DumpStyleModuleWithFileAddress, 0); + } else { + s.Printf("0x%*.*" PRIx64, addr_width, addr_width, vaddr); + } + return true; + } + return false; +} + +static bool DumpAddressOffsetFromFunction(Stream &s, const SymbolContext *sc, + const ExecutionContext *exe_ctx, + const Address &format_addr, + bool concrete_only, bool no_padding, + bool print_zero_offsets) { + if (format_addr.IsValid()) { + Address func_addr; + + if (sc) { + if (sc->function) { + func_addr = sc->function->GetAddressRange().GetBaseAddress(); + if (sc->block && !concrete_only) { + // Check to make sure we aren't in an inline function. If we are, use + // the inline block range that contains "format_addr" since blocks + // can be discontiguous. + Block *inline_block = sc->block->GetContainingInlinedBlock(); + AddressRange inline_range; + if (inline_block && inline_block->GetRangeContainingAddress( + format_addr, inline_range)) + func_addr = inline_range.GetBaseAddress(); + } + } else if (sc->symbol && sc->symbol->ValueIsAddress()) + func_addr = sc->symbol->GetAddressRef(); + } + + if (func_addr.IsValid()) { + const char *addr_offset_padding = no_padding ? "" : " "; + + if (func_addr.GetSection() == format_addr.GetSection()) { + addr_t func_file_addr = func_addr.GetFileAddress(); + addr_t addr_file_addr = format_addr.GetFileAddress(); + if (addr_file_addr > func_file_addr || + (addr_file_addr == func_file_addr && print_zero_offsets)) { + s.Printf("%s+%s%" PRIu64, addr_offset_padding, addr_offset_padding, + addr_file_addr - func_file_addr); + } else if (addr_file_addr < func_file_addr) { + s.Printf("%s-%s%" PRIu64, addr_offset_padding, addr_offset_padding, + func_file_addr - addr_file_addr); + } + return true; + } else { + Target *target = Target::GetTargetFromContexts(exe_ctx, sc); + if (target) { + addr_t func_load_addr = func_addr.GetLoadAddress(target); + addr_t addr_load_addr = format_addr.GetLoadAddress(target); + if (addr_load_addr > func_load_addr || + (addr_load_addr == func_load_addr && print_zero_offsets)) { + s.Printf("%s+%s%" PRIu64, addr_offset_padding, addr_offset_padding, + addr_load_addr - func_load_addr); + } else if (addr_load_addr < func_load_addr) { + s.Printf("%s-%s%" PRIu64, addr_offset_padding, addr_offset_padding, + func_load_addr - addr_load_addr); + } + return true; + } + } + } + } + return false; +} + +static bool ScanBracketedRange(llvm::StringRef subpath, + size_t &close_bracket_index, + const char *&var_name_final_if_array_range, + int64_t &index_lower, int64_t &index_higher) { + Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_DATAFORMATTERS)); + close_bracket_index = llvm::StringRef::npos; + const size_t open_bracket_index = subpath.find('['); + if (open_bracket_index == llvm::StringRef::npos) { + if (log) + log->Printf("[ScanBracketedRange] no bracketed range, skipping entirely"); + return false; + } + + close_bracket_index = subpath.find(']', open_bracket_index + 1); + + if (close_bracket_index == llvm::StringRef::npos) { + if (log) + log->Printf("[ScanBracketedRange] no bracketed range, skipping entirely"); + return false; + } else { + var_name_final_if_array_range = subpath.data() + open_bracket_index; + + if (close_bracket_index - open_bracket_index == 1) { + if (log) + log->Printf( + "[ScanBracketedRange] '[]' detected.. going from 0 to end of data"); + index_lower = 0; + } else { + const size_t separator_index = subpath.find('-', open_bracket_index + 1); + + if (separator_index == llvm::StringRef::npos) { + const char *index_lower_cstr = subpath.data() + open_bracket_index + 1; + index_lower = ::strtoul(index_lower_cstr, nullptr, 0); + index_higher = index_lower; + if (log) + log->Printf("[ScanBracketedRange] [%" PRId64 + "] detected, high index is same", + index_lower); + } else { + const char *index_lower_cstr = subpath.data() + open_bracket_index + 1; + const char *index_higher_cstr = subpath.data() + separator_index + 1; + index_lower = ::strtoul(index_lower_cstr, nullptr, 0); + index_higher = ::strtoul(index_higher_cstr, nullptr, 0); + if (log) + log->Printf("[ScanBracketedRange] [%" PRId64 "-%" PRId64 "] detected", + index_lower, index_higher); + } + if (index_lower > index_higher && index_higher > 0) { + if (log) + log->Printf("[ScanBracketedRange] swapping indices"); + const int64_t temp = index_lower; + index_lower = index_higher; + index_higher = temp; + } + } + } + return true; +} + +static bool DumpFile(Stream &s, const FileSpec &file, FileKind file_kind) { + switch (file_kind) { + case FileKind::FileError: + break; + + case FileKind::Basename: + if (file.GetFilename()) { + s << file.GetFilename(); + return true; + } + break; + + case FileKind::Dirname: + if (file.GetDirectory()) { + s << file.GetDirectory(); + return true; + } + break; + + case FileKind::Fullpath: + if (file) { + s << file; + return true; + } + break; + } + return false; +} + +static bool DumpRegister(Stream &s, StackFrame *frame, RegisterKind reg_kind, + uint32_t reg_num, Format format) + +{ + if (frame) { + RegisterContext *reg_ctx = frame->GetRegisterContext().get(); + + if (reg_ctx) { + const uint32_t lldb_reg_num = + reg_ctx->ConvertRegisterKindToRegisterNumber(reg_kind, reg_num); + if (lldb_reg_num != LLDB_INVALID_REGNUM) { + const RegisterInfo *reg_info = + reg_ctx->GetRegisterInfoAtIndex(lldb_reg_num); + if (reg_info) { + RegisterValue reg_value; + if (reg_ctx->ReadRegister(reg_info, reg_value)) { + DumpRegisterValue(reg_value, &s, reg_info, false, false, format); + return true; + } + } + } + } + } + return false; +} + +static ValueObjectSP ExpandIndexedExpression(ValueObject *valobj, size_t index, + StackFrame *frame, + bool deref_pointer) { + Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_DATAFORMATTERS)); + const char *ptr_deref_format = "[%d]"; + std::string ptr_deref_buffer(10, 0); + ::sprintf(&ptr_deref_buffer[0], ptr_deref_format, index); + if (log) + log->Printf("[ExpandIndexedExpression] name to deref: %s", + ptr_deref_buffer.c_str()); + ValueObject::GetValueForExpressionPathOptions options; + ValueObject::ExpressionPathEndResultType final_value_type; + ValueObject::ExpressionPathScanEndReason reason_to_stop; + ValueObject::ExpressionPathAftermath what_next = + (deref_pointer ? ValueObject::eExpressionPathAftermathDereference + : ValueObject::eExpressionPathAftermathNothing); + ValueObjectSP item = valobj->GetValueForExpressionPath( + ptr_deref_buffer.c_str(), &reason_to_stop, &final_value_type, options, + &what_next); + if (!item) { + if (log) + log->Printf("[ExpandIndexedExpression] ERROR: why stopping = %d," + " final_value_type %d", + reason_to_stop, final_value_type); + } else { + if (log) + log->Printf("[ExpandIndexedExpression] ALL RIGHT: why stopping = %d," + " final_value_type %d", + reason_to_stop, final_value_type); + } + return item; +} + +static char ConvertValueObjectStyleToChar( + ValueObject::ValueObjectRepresentationStyle style) { + switch (style) { + case ValueObject::eValueObjectRepresentationStyleLanguageSpecific: + return '@'; + case ValueObject::eValueObjectRepresentationStyleValue: + return 'V'; + case ValueObject::eValueObjectRepresentationStyleLocation: + return 'L'; + case ValueObject::eValueObjectRepresentationStyleSummary: + return 'S'; + case ValueObject::eValueObjectRepresentationStyleChildrenCount: + return '#'; + case ValueObject::eValueObjectRepresentationStyleType: + return 'T'; + case ValueObject::eValueObjectRepresentationStyleName: + return 'N'; + case ValueObject::eValueObjectRepresentationStyleExpressionPath: + return '>'; + } + return '\0'; +} + +static bool DumpValue(Stream &s, const SymbolContext *sc, + const ExecutionContext *exe_ctx, + const FormatEntity::Entry &entry, ValueObject *valobj) { + if (valobj == nullptr) + return false; + + Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_DATAFORMATTERS)); + Format custom_format = eFormatInvalid; + ValueObject::ValueObjectRepresentationStyle val_obj_display = + entry.string.empty() + ? ValueObject::eValueObjectRepresentationStyleValue + : ValueObject::eValueObjectRepresentationStyleSummary; + + bool do_deref_pointer = entry.deref; + bool is_script = false; + switch (entry.type) { + case FormatEntity::Entry::Type::ScriptVariable: + is_script = true; + break; + + case FormatEntity::Entry::Type::Variable: + custom_format = entry.fmt; + val_obj_display = (ValueObject::ValueObjectRepresentationStyle)entry.number; + break; + + case FormatEntity::Entry::Type::ScriptVariableSynthetic: + is_script = true; + LLVM_FALLTHROUGH; + case FormatEntity::Entry::Type::VariableSynthetic: + custom_format = entry.fmt; + val_obj_display = (ValueObject::ValueObjectRepresentationStyle)entry.number; + if (!valobj->IsSynthetic()) { + valobj = valobj->GetSyntheticValue().get(); + if (valobj == nullptr) + return false; + } + break; + + default: + return false; + } + + if (valobj == nullptr) + return false; + + ValueObject::ExpressionPathAftermath what_next = + (do_deref_pointer ? ValueObject::eExpressionPathAftermathDereference + : ValueObject::eExpressionPathAftermathNothing); + ValueObject::GetValueForExpressionPathOptions options; + options.DontCheckDotVsArrowSyntax() + .DoAllowBitfieldSyntax() + .DoAllowFragileIVar() + .SetSyntheticChildrenTraversal( + ValueObject::GetValueForExpressionPathOptions:: + SyntheticChildrenTraversal::Both); + ValueObject *target = nullptr; + const char *var_name_final_if_array_range = nullptr; + size_t close_bracket_index = llvm::StringRef::npos; + int64_t index_lower = -1; + int64_t index_higher = -1; + bool is_array_range = false; + bool was_plain_var = false; + bool was_var_format = false; + bool was_var_indexed = false; + ValueObject::ExpressionPathScanEndReason reason_to_stop = + ValueObject::eExpressionPathScanEndReasonEndOfString; + ValueObject::ExpressionPathEndResultType final_value_type = + ValueObject::eExpressionPathEndResultTypePlain; + + if (is_script) { + return RunScriptFormatKeyword(s, sc, exe_ctx, valobj, entry.string.c_str()); + } + + llvm::StringRef subpath(entry.string); + // simplest case ${var}, just print valobj's value + if (entry.string.empty()) { + if (entry.printf_format.empty() && entry.fmt == eFormatDefault && + entry.number == ValueObject::eValueObjectRepresentationStyleValue) + was_plain_var = true; + else + was_var_format = true; + target = valobj; + } else // this is ${var.something} or multiple .something nested + { + if (entry.string[0] == '[') + was_var_indexed = true; + ScanBracketedRange(subpath, close_bracket_index, + var_name_final_if_array_range, index_lower, + index_higher); + + Status error; + + const std::string &expr_path = entry.string; + + if (log) + log->Printf("[Debugger::FormatPrompt] symbol to expand: %s", + expr_path.c_str()); + + target = + valobj + ->GetValueForExpressionPath(expr_path.c_str(), &reason_to_stop, + &final_value_type, options, &what_next) + .get(); + + if (!target) { + if (log) + log->Printf("[Debugger::FormatPrompt] ERROR: why stopping = %d," + " final_value_type %d", + reason_to_stop, final_value_type); + return false; + } else { + if (log) + log->Printf("[Debugger::FormatPrompt] ALL RIGHT: why stopping = %d," + " final_value_type %d", + reason_to_stop, final_value_type); + target = target + ->GetQualifiedRepresentationIfAvailable( + target->GetDynamicValueType(), true) + .get(); + } + } + + is_array_range = + (final_value_type == + ValueObject::eExpressionPathEndResultTypeBoundedRange || + final_value_type == + ValueObject::eExpressionPathEndResultTypeUnboundedRange); + + do_deref_pointer = + (what_next == ValueObject::eExpressionPathAftermathDereference); + + if (do_deref_pointer && !is_array_range) { + // I have not deref-ed yet, let's do it + // this happens when we are not going through + // GetValueForVariableExpressionPath to get to the target ValueObject + Status error; + target = target->Dereference(error).get(); + if (error.Fail()) { + if (log) + log->Printf("[Debugger::FormatPrompt] ERROR: %s\n", + error.AsCString("unknown")); + return false; + } + do_deref_pointer = false; + } + + if (!target) { + if (log) + log->Printf("[Debugger::FormatPrompt] could not calculate target for " + "prompt expression"); + return false; + } + + // we do not want to use the summary for a bitfield of type T:n if we were + // originally dealing with just a T - that would get us into an endless + // recursion + if (target->IsBitfield() && was_var_indexed) { + // TODO: check for a (T:n)-specific summary - we should still obey that + StreamString bitfield_name; + bitfield_name.Printf("%s:%d", target->GetTypeName().AsCString(), + target->GetBitfieldBitSize()); + auto type_sp = std::make_shared<TypeNameSpecifierImpl>( + bitfield_name.GetString(), false); + if (val_obj_display == + ValueObject::eValueObjectRepresentationStyleSummary && + !DataVisualization::GetSummaryForType(type_sp)) + val_obj_display = ValueObject::eValueObjectRepresentationStyleValue; + } + + // TODO use flags for these + const uint32_t type_info_flags = + target->GetCompilerType().GetTypeInfo(nullptr); + bool is_array = (type_info_flags & eTypeIsArray) != 0; + bool is_pointer = (type_info_flags & eTypeIsPointer) != 0; + bool is_aggregate = target->GetCompilerType().IsAggregateType(); + + if ((is_array || is_pointer) && (!is_array_range) && + val_obj_display == + ValueObject::eValueObjectRepresentationStyleValue) // this should be + // wrong, but there + // are some + // exceptions + { + StreamString str_temp; + if (log) + log->Printf( + "[Debugger::FormatPrompt] I am into array || pointer && !range"); + + if (target->HasSpecialPrintableRepresentation(val_obj_display, + custom_format)) { + // try to use the special cases + bool success = target->DumpPrintableRepresentation( + str_temp, val_obj_display, custom_format); + if (log) + log->Printf("[Debugger::FormatPrompt] special cases did%s match", + success ? "" : "n't"); + + // should not happen + if (success) + s << str_temp.GetString(); + return true; + } else { + if (was_plain_var) // if ${var} + { + s << target->GetTypeName() << " @ " << target->GetLocationAsCString(); + } else if (is_pointer) // if pointer, value is the address stored + { + target->DumpPrintableRepresentation( + s, val_obj_display, custom_format, + ValueObject::PrintableRepresentationSpecialCases::eDisable); + } + return true; + } + } + + // if directly trying to print ${var}, and this is an aggregate, display a + // nice type @ location message + if (is_aggregate && was_plain_var) { + s << target->GetTypeName() << " @ " << target->GetLocationAsCString(); + return true; + } + + // if directly trying to print ${var%V}, and this is an aggregate, do not let + // the user do it + if (is_aggregate && + ((was_var_format && + val_obj_display == + ValueObject::eValueObjectRepresentationStyleValue))) { + s << "<invalid use of aggregate type>"; + return true; + } + + if (!is_array_range) { + if (log) + log->Printf("[Debugger::FormatPrompt] dumping ordinary printable output"); + return target->DumpPrintableRepresentation(s, val_obj_display, + custom_format); + } else { + if (log) + log->Printf("[Debugger::FormatPrompt] checking if I can handle as array"); + if (!is_array && !is_pointer) + return false; + if (log) + log->Printf("[Debugger::FormatPrompt] handle as array"); + StreamString special_directions_stream; + llvm::StringRef special_directions; + if (close_bracket_index != llvm::StringRef::npos && + subpath.size() > close_bracket_index) { + ConstString additional_data(subpath.drop_front(close_bracket_index + 1)); + special_directions_stream.Printf("${%svar%s", do_deref_pointer ? "*" : "", + additional_data.GetCString()); + + if (entry.fmt != eFormatDefault) { + const char format_char = + FormatManager::GetFormatAsFormatChar(entry.fmt); + if (format_char != '\0') + special_directions_stream.Printf("%%%c", format_char); + else { + const char *format_cstr = + FormatManager::GetFormatAsCString(entry.fmt); + special_directions_stream.Printf("%%%s", format_cstr); + } + } else if (entry.number != 0) { + const char style_char = ConvertValueObjectStyleToChar( + (ValueObject::ValueObjectRepresentationStyle)entry.number); + if (style_char) + special_directions_stream.Printf("%%%c", style_char); + } + special_directions_stream.PutChar('}'); + special_directions = + llvm::StringRef(special_directions_stream.GetString()); + } + + // let us display items index_lower thru index_higher of this array + s.PutChar('['); + + if (index_higher < 0) + index_higher = valobj->GetNumChildren() - 1; + + uint32_t max_num_children = + target->GetTargetSP()->GetMaximumNumberOfChildrenToDisplay(); + + bool success = true; + for (int64_t index = index_lower; index <= index_higher; ++index) { + ValueObject *item = + ExpandIndexedExpression(target, index, exe_ctx->GetFramePtr(), false) + .get(); + + if (!item) { + if (log) + log->Printf("[Debugger::FormatPrompt] ERROR in getting child item at " + "index %" PRId64, + index); + } else { + if (log) + log->Printf( + "[Debugger::FormatPrompt] special_directions for child item: %s", + special_directions.data() ? special_directions.data() : ""); + } + + if (special_directions.empty()) { + success &= item->DumpPrintableRepresentation(s, val_obj_display, + custom_format); + } else { + success &= FormatEntity::FormatStringRef( + special_directions, s, sc, exe_ctx, nullptr, item, false, false); + } + + if (--max_num_children == 0) { + s.PutCString(", ..."); + break; + } + + if (index < index_higher) + s.PutChar(','); + } + s.PutChar(']'); + return success; + } +} + +static bool DumpRegister(Stream &s, StackFrame *frame, const char *reg_name, + Format format) { + if (frame) { + RegisterContext *reg_ctx = frame->GetRegisterContext().get(); + + if (reg_ctx) { + const RegisterInfo *reg_info = reg_ctx->GetRegisterInfoByName(reg_name); + if (reg_info) { + RegisterValue reg_value; + if (reg_ctx->ReadRegister(reg_info, reg_value)) { + DumpRegisterValue(reg_value, &s, reg_info, false, false, format); + return true; + } + } + } + } + return false; +} + +static bool FormatThreadExtendedInfoRecurse( + const FormatEntity::Entry &entry, + const StructuredData::ObjectSP &thread_info_dictionary, + const SymbolContext *sc, const ExecutionContext *exe_ctx, Stream &s) { + llvm::StringRef path(entry.string); + + StructuredData::ObjectSP value = + thread_info_dictionary->GetObjectForDotSeparatedPath(path); + + if (value) { + if (value->GetType() == eStructuredDataTypeInteger) { + const char *token_format = "0x%4.4" PRIx64; + if (!entry.printf_format.empty()) + token_format = entry.printf_format.c_str(); + s.Printf(token_format, value->GetAsInteger()->GetValue()); + return true; + } else if (value->GetType() == eStructuredDataTypeFloat) { + s.Printf("%f", value->GetAsFloat()->GetValue()); + return true; + } else if (value->GetType() == eStructuredDataTypeString) { + s.Format("{0}", value->GetAsString()->GetValue()); + return true; + } else if (value->GetType() == eStructuredDataTypeArray) { + if (value->GetAsArray()->GetSize() > 0) { + s.Printf("%zu", value->GetAsArray()->GetSize()); + return true; + } + } else if (value->GetType() == eStructuredDataTypeDictionary) { + s.Printf("%zu", + value->GetAsDictionary()->GetKeys()->GetAsArray()->GetSize()); + return true; + } + } + + return false; +} + +static inline bool IsToken(const char *var_name_begin, const char *var) { + return (::strncmp(var_name_begin, var, strlen(var)) == 0); +} + +bool FormatEntity::FormatStringRef(const llvm::StringRef &format_str, Stream &s, + const SymbolContext *sc, + const ExecutionContext *exe_ctx, + const Address *addr, ValueObject *valobj, + bool function_changed, + bool initial_function) { + if (!format_str.empty()) { + FormatEntity::Entry root; + Status error = FormatEntity::Parse(format_str, root); + if (error.Success()) { + return FormatEntity::Format(root, s, sc, exe_ctx, addr, valobj, + function_changed, initial_function); + } + } + return false; +} + +bool FormatEntity::FormatCString(const char *format, Stream &s, + const SymbolContext *sc, + const ExecutionContext *exe_ctx, + const Address *addr, ValueObject *valobj, + bool function_changed, bool initial_function) { + if (format && format[0]) { + FormatEntity::Entry root; + llvm::StringRef format_str(format); + Status error = FormatEntity::Parse(format_str, root); + if (error.Success()) { + return FormatEntity::Format(root, s, sc, exe_ctx, addr, valobj, + function_changed, initial_function); + } + } + return false; +} + +bool FormatEntity::Format(const Entry &entry, Stream &s, + const SymbolContext *sc, + const ExecutionContext *exe_ctx, const Address *addr, + ValueObject *valobj, bool function_changed, + bool initial_function) { + switch (entry.type) { + case Entry::Type::Invalid: + case Entry::Type::ParentNumber: // Only used for + // FormatEntity::Entry::Definition encoding + case Entry::Type::ParentString: // Only used for + // FormatEntity::Entry::Definition encoding + return false; + case Entry::Type::EscapeCode: + if (exe_ctx) { + if (Target *target = exe_ctx->GetTargetPtr()) { + Debugger &debugger = target->GetDebugger(); + if (debugger.GetUseColor()) { + s.PutCString(entry.string); + } + } + } + // Always return true, so colors being disabled is transparent. + return true; + + case Entry::Type::Root: + for (const auto &child : entry.children) { + if (!Format(child, s, sc, exe_ctx, addr, valobj, function_changed, + initial_function)) { + return false; // If any item of root fails, then the formatting fails + } + } + return true; // Only return true if all items succeeded + + case Entry::Type::String: + s.PutCString(entry.string); + return true; + + case Entry::Type::Scope: { + StreamString scope_stream; + bool success = false; + for (const auto &child : entry.children) { + success = Format(child, scope_stream, sc, exe_ctx, addr, valobj, + function_changed, initial_function); + if (!success) + break; + } + // Only if all items in a scope succeed, then do we print the output into + // the main stream + if (success) + s.Write(scope_stream.GetString().data(), scope_stream.GetString().size()); + } + return true; // Scopes always successfully print themselves + + case Entry::Type::Variable: + case Entry::Type::VariableSynthetic: + case Entry::Type::ScriptVariable: + case Entry::Type::ScriptVariableSynthetic: + return DumpValue(s, sc, exe_ctx, entry, valobj); + + case Entry::Type::AddressFile: + case Entry::Type::AddressLoad: + case Entry::Type::AddressLoadOrFile: + return (addr != nullptr && addr->IsValid() && + DumpAddress(s, sc, exe_ctx, *addr, + entry.type == Entry::Type::AddressLoadOrFile)); + + case Entry::Type::ProcessID: + if (exe_ctx) { + Process *process = exe_ctx->GetProcessPtr(); + if (process) { + const char *format = "%" PRIu64; + if (!entry.printf_format.empty()) + format = entry.printf_format.c_str(); + s.Printf(format, process->GetID()); + return true; + } + } + return false; + + case Entry::Type::ProcessFile: + if (exe_ctx) { + Process *process = exe_ctx->GetProcessPtr(); + if (process) { + Module *exe_module = process->GetTarget().GetExecutableModulePointer(); + if (exe_module) { + if (DumpFile(s, exe_module->GetFileSpec(), (FileKind)entry.number)) + return true; + } + } + } + return false; + + case Entry::Type::ScriptProcess: + if (exe_ctx) { + Process *process = exe_ctx->GetProcessPtr(); + if (process) + return RunScriptFormatKeyword(s, sc, exe_ctx, process, + entry.string.c_str()); + } + return false; + + case Entry::Type::ThreadID: + if (exe_ctx) { + Thread *thread = exe_ctx->GetThreadPtr(); + if (thread) { + const char *format = "0x%4.4" PRIx64; + if (!entry.printf_format.empty()) { + // Watch for the special "tid" format... + if (entry.printf_format == "tid") { + // TODO(zturner): Rather than hardcoding this to be platform + // specific, it should be controlled by a setting and the default + // value of the setting can be different depending on the platform. + Target &target = thread->GetProcess()->GetTarget(); + ArchSpec arch(target.GetArchitecture()); + llvm::Triple::OSType ostype = arch.IsValid() + ? arch.GetTriple().getOS() + : llvm::Triple::UnknownOS; + if ((ostype == llvm::Triple::FreeBSD) || + (ostype == llvm::Triple::Linux) || + (ostype == llvm::Triple::NetBSD)) { + format = "%" PRIu64; + } + } else { + format = entry.printf_format.c_str(); + } + } + s.Printf(format, thread->GetID()); + return true; + } + } + return false; + + case Entry::Type::ThreadProtocolID: + if (exe_ctx) { + Thread *thread = exe_ctx->GetThreadPtr(); + if (thread) { + const char *format = "0x%4.4" PRIx64; + if (!entry.printf_format.empty()) + format = entry.printf_format.c_str(); + s.Printf(format, thread->GetProtocolID()); + return true; + } + } + return false; + + case Entry::Type::ThreadIndexID: + if (exe_ctx) { + Thread *thread = exe_ctx->GetThreadPtr(); + if (thread) { + const char *format = "%" PRIu32; + if (!entry.printf_format.empty()) + format = entry.printf_format.c_str(); + s.Printf(format, thread->GetIndexID()); + return true; + } + } + return false; + + case Entry::Type::ThreadName: + if (exe_ctx) { + Thread *thread = exe_ctx->GetThreadPtr(); + if (thread) { + const char *cstr = thread->GetName(); + if (cstr && cstr[0]) { + s.PutCString(cstr); + return true; + } + } + } + return false; + + case Entry::Type::ThreadQueue: + if (exe_ctx) { + Thread *thread = exe_ctx->GetThreadPtr(); + if (thread) { + const char *cstr = thread->GetQueueName(); + if (cstr && cstr[0]) { + s.PutCString(cstr); + return true; + } + } + } + return false; + + case Entry::Type::ThreadStopReason: + if (exe_ctx) { + Thread *thread = exe_ctx->GetThreadPtr(); + if (thread) { + StopInfoSP stop_info_sp = thread->GetStopInfo(); + if (stop_info_sp && stop_info_sp->IsValid()) { + const char *cstr = stop_info_sp->GetDescription(); + if (cstr && cstr[0]) { + s.PutCString(cstr); + return true; + } + } + } + } + return false; + + case Entry::Type::ThreadReturnValue: + if (exe_ctx) { + Thread *thread = exe_ctx->GetThreadPtr(); + if (thread) { + StopInfoSP stop_info_sp = thread->GetStopInfo(); + if (stop_info_sp && stop_info_sp->IsValid()) { + ValueObjectSP return_valobj_sp = + StopInfo::GetReturnValueObject(stop_info_sp); + if (return_valobj_sp) { + return_valobj_sp->Dump(s); + return true; + } + } + } + } + return false; + + case Entry::Type::ThreadCompletedExpression: + if (exe_ctx) { + Thread *thread = exe_ctx->GetThreadPtr(); + if (thread) { + StopInfoSP stop_info_sp = thread->GetStopInfo(); + if (stop_info_sp && stop_info_sp->IsValid()) { + ExpressionVariableSP expression_var_sp = + StopInfo::GetExpressionVariable(stop_info_sp); + if (expression_var_sp && expression_var_sp->GetValueObject()) { + expression_var_sp->GetValueObject()->Dump(s); + return true; + } + } + } + } + return false; + + case Entry::Type::ScriptThread: + if (exe_ctx) { + Thread *thread = exe_ctx->GetThreadPtr(); + if (thread) + return RunScriptFormatKeyword(s, sc, exe_ctx, thread, + entry.string.c_str()); + } + return false; + + case Entry::Type::ThreadInfo: + if (exe_ctx) { + Thread *thread = exe_ctx->GetThreadPtr(); + if (thread) { + StructuredData::ObjectSP object_sp = thread->GetExtendedInfo(); + if (object_sp && + object_sp->GetType() == eStructuredDataTypeDictionary) { + if (FormatThreadExtendedInfoRecurse(entry, object_sp, sc, exe_ctx, s)) + return true; + } + } + } + return false; + + case Entry::Type::TargetArch: + if (exe_ctx) { + Target *target = exe_ctx->GetTargetPtr(); + if (target) { + const ArchSpec &arch = target->GetArchitecture(); + if (arch.IsValid()) { + s.PutCString(arch.GetArchitectureName()); + return true; + } + } + } + return false; + + case Entry::Type::ScriptTarget: + if (exe_ctx) { + Target *target = exe_ctx->GetTargetPtr(); + if (target) + return RunScriptFormatKeyword(s, sc, exe_ctx, target, + entry.string.c_str()); + } + return false; + + case Entry::Type::ModuleFile: + if (sc) { + Module *module = sc->module_sp.get(); + if (module) { + if (DumpFile(s, module->GetFileSpec(), (FileKind)entry.number)) + return true; + } + } + return false; + + case Entry::Type::File: + if (sc) { + CompileUnit *cu = sc->comp_unit; + if (cu) { + // CompileUnit is a FileSpec + if (DumpFile(s, *cu, (FileKind)entry.number)) + return true; + } + } + return false; + + case Entry::Type::Lang: + if (sc) { + CompileUnit *cu = sc->comp_unit; + if (cu) { + const char *lang_name = + Language::GetNameForLanguageType(cu->GetLanguage()); + if (lang_name) { + s.PutCString(lang_name); + return true; + } + } + } + return false; + + case Entry::Type::FrameIndex: + if (exe_ctx) { + StackFrame *frame = exe_ctx->GetFramePtr(); + if (frame) { + const char *format = "%" PRIu32; + if (!entry.printf_format.empty()) + format = entry.printf_format.c_str(); + s.Printf(format, frame->GetFrameIndex()); + return true; + } + } + return false; + + case Entry::Type::FrameRegisterPC: + if (exe_ctx) { + StackFrame *frame = exe_ctx->GetFramePtr(); + if (frame) { + const Address &pc_addr = frame->GetFrameCodeAddress(); + if (pc_addr.IsValid()) { + if (DumpAddress(s, sc, exe_ctx, pc_addr, false)) + return true; + } + } + } + return false; + + case Entry::Type::FrameRegisterSP: + if (exe_ctx) { + StackFrame *frame = exe_ctx->GetFramePtr(); + if (frame) { + if (DumpRegister(s, frame, eRegisterKindGeneric, LLDB_REGNUM_GENERIC_SP, + (lldb::Format)entry.number)) + return true; + } + } + return false; + + case Entry::Type::FrameRegisterFP: + if (exe_ctx) { + StackFrame *frame = exe_ctx->GetFramePtr(); + if (frame) { + if (DumpRegister(s, frame, eRegisterKindGeneric, LLDB_REGNUM_GENERIC_FP, + (lldb::Format)entry.number)) + return true; + } + } + return false; + + case Entry::Type::FrameRegisterFlags: + if (exe_ctx) { + StackFrame *frame = exe_ctx->GetFramePtr(); + if (frame) { + if (DumpRegister(s, frame, eRegisterKindGeneric, + LLDB_REGNUM_GENERIC_FLAGS, (lldb::Format)entry.number)) + return true; + } + } + return false; + + case Entry::Type::FrameNoDebug: + if (exe_ctx) { + StackFrame *frame = exe_ctx->GetFramePtr(); + if (frame) { + return !frame->HasDebugInformation(); + } + } + return true; + + case Entry::Type::FrameRegisterByName: + if (exe_ctx) { + StackFrame *frame = exe_ctx->GetFramePtr(); + if (frame) { + if (DumpRegister(s, frame, entry.string.c_str(), + (lldb::Format)entry.number)) + return true; + } + } + return false; + + case Entry::Type::FrameIsArtificial: { + if (exe_ctx) + if (StackFrame *frame = exe_ctx->GetFramePtr()) + return frame->IsArtificial(); + return false; + } + + case Entry::Type::ScriptFrame: + if (exe_ctx) { + StackFrame *frame = exe_ctx->GetFramePtr(); + if (frame) + return RunScriptFormatKeyword(s, sc, exe_ctx, frame, + entry.string.c_str()); + } + return false; + + case Entry::Type::FunctionID: + if (sc) { + if (sc->function) { + s.Printf("function{0x%8.8" PRIx64 "}", sc->function->GetID()); + return true; + } else if (sc->symbol) { + s.Printf("symbol[%u]", sc->symbol->GetID()); + return true; + } + } + return false; + + case Entry::Type::FunctionDidChange: + return function_changed; + + case Entry::Type::FunctionInitialFunction: + return initial_function; + + case Entry::Type::FunctionName: { + Language *language_plugin = nullptr; + bool language_plugin_handled = false; + StreamString ss; + if (sc->function) + language_plugin = Language::FindPlugin(sc->function->GetLanguage()); + else if (sc->symbol) + language_plugin = Language::FindPlugin(sc->symbol->GetLanguage()); + if (language_plugin) { + language_plugin_handled = language_plugin->GetFunctionDisplayName( + sc, exe_ctx, Language::FunctionNameRepresentation::eName, ss); + } + if (language_plugin_handled) { + s << ss.GetString(); + return true; + } else { + const char *name = nullptr; + if (sc->function) + name = sc->function->GetName().AsCString(nullptr); + else if (sc->symbol) + name = sc->symbol->GetName().AsCString(nullptr); + if (name) { + s.PutCString(name); + + if (sc->block) { + Block *inline_block = sc->block->GetContainingInlinedBlock(); + if (inline_block) { + const InlineFunctionInfo *inline_info = + sc->block->GetInlinedFunctionInfo(); + if (inline_info) { + s.PutCString(" [inlined] "); + inline_info->GetName(sc->function->GetLanguage()).Dump(&s); + } + } + } + return true; + } + } + } + return false; + + case Entry::Type::FunctionNameNoArgs: { + Language *language_plugin = nullptr; + bool language_plugin_handled = false; + StreamString ss; + if (sc->function) + language_plugin = Language::FindPlugin(sc->function->GetLanguage()); + else if (sc->symbol) + language_plugin = Language::FindPlugin(sc->symbol->GetLanguage()); + if (language_plugin) { + language_plugin_handled = language_plugin->GetFunctionDisplayName( + sc, exe_ctx, Language::FunctionNameRepresentation::eNameWithNoArgs, + ss); + } + if (language_plugin_handled) { + s << ss.GetString(); + return true; + } else { + ConstString name; + if (sc->function) + name = sc->function->GetNameNoArguments(); + else if (sc->symbol) + name = sc->symbol->GetNameNoArguments(); + if (name) { + s.PutCString(name.GetCString()); + return true; + } + } + } + return false; + + case Entry::Type::FunctionNameWithArgs: { + Language *language_plugin = nullptr; + bool language_plugin_handled = false; + StreamString ss; + if (sc->function) + language_plugin = Language::FindPlugin(sc->function->GetLanguage()); + else if (sc->symbol) + language_plugin = Language::FindPlugin(sc->symbol->GetLanguage()); + if (language_plugin) { + language_plugin_handled = language_plugin->GetFunctionDisplayName( + sc, exe_ctx, Language::FunctionNameRepresentation::eNameWithArgs, ss); + } + if (language_plugin_handled) { + s << ss.GetString(); + return true; + } else { + // Print the function name with arguments in it + if (sc->function) { + ExecutionContextScope *exe_scope = + exe_ctx ? exe_ctx->GetBestExecutionContextScope() : nullptr; + const char *cstr = sc->function->GetName().AsCString(nullptr); + if (cstr) { + const InlineFunctionInfo *inline_info = nullptr; + VariableListSP variable_list_sp; + bool get_function_vars = true; + if (sc->block) { + Block *inline_block = sc->block->GetContainingInlinedBlock(); + + if (inline_block) { + get_function_vars = false; + inline_info = sc->block->GetInlinedFunctionInfo(); + if (inline_info) + variable_list_sp = inline_block->GetBlockVariableList(true); + } + } + + if (get_function_vars) { + variable_list_sp = + sc->function->GetBlock(true).GetBlockVariableList(true); + } + + if (inline_info) { + s.PutCString(cstr); + s.PutCString(" [inlined] "); + cstr = + inline_info->GetName(sc->function->GetLanguage()).GetCString(); + } + + VariableList args; + if (variable_list_sp) + variable_list_sp->AppendVariablesWithScope( + eValueTypeVariableArgument, args); + if (args.GetSize() > 0) { + const char *open_paren = strchr(cstr, '('); + const char *close_paren = nullptr; + const char *generic = strchr(cstr, '<'); + // if before the arguments list begins there is a template sign + // then scan to the end of the generic args before you try to find + // the arguments list + if (generic && open_paren && generic < open_paren) { + int generic_depth = 1; + ++generic; + for (; *generic && generic_depth > 0; generic++) { + if (*generic == '<') + generic_depth++; + if (*generic == '>') + generic_depth--; + } + if (*generic) + open_paren = strchr(generic, '('); + else + open_paren = nullptr; + } + if (open_paren) { + if (IsToken(open_paren, "(anonymous namespace)")) { + open_paren = + strchr(open_paren + strlen("(anonymous namespace)"), '('); + if (open_paren) + close_paren = strchr(open_paren, ')'); + } else + close_paren = strchr(open_paren, ')'); + } + + if (open_paren) + s.Write(cstr, open_paren - cstr + 1); + else { + s.PutCString(cstr); + s.PutChar('('); + } + const size_t num_args = args.GetSize(); + for (size_t arg_idx = 0; arg_idx < num_args; ++arg_idx) { + std::string buffer; + + VariableSP var_sp(args.GetVariableAtIndex(arg_idx)); + ValueObjectSP var_value_sp( + ValueObjectVariable::Create(exe_scope, var_sp)); + StreamString ss; + llvm::StringRef var_representation; + const char *var_name = var_value_sp->GetName().GetCString(); + if (var_value_sp->GetCompilerType().IsValid()) { + if (var_value_sp && exe_scope->CalculateTarget()) + var_value_sp = + var_value_sp->GetQualifiedRepresentationIfAvailable( + exe_scope->CalculateTarget() + ->TargetProperties::GetPreferDynamicValue(), + exe_scope->CalculateTarget() + ->TargetProperties::GetEnableSyntheticValue()); + if (var_value_sp->GetCompilerType().IsAggregateType() && + DataVisualization::ShouldPrintAsOneLiner(*var_value_sp)) { + static StringSummaryFormat format( + TypeSummaryImpl::Flags() + .SetHideItemNames(false) + .SetShowMembersOneLiner(true), + ""); + format.FormatObject(var_value_sp.get(), buffer, + TypeSummaryOptions()); + var_representation = buffer; + } else + var_value_sp->DumpPrintableRepresentation( + ss, + ValueObject::ValueObjectRepresentationStyle:: + eValueObjectRepresentationStyleSummary, + eFormatDefault, + ValueObject::PrintableRepresentationSpecialCases::eAllow, + false); + } + + if (!ss.GetString().empty()) + var_representation = ss.GetString(); + if (arg_idx > 0) + s.PutCString(", "); + if (var_value_sp->GetError().Success()) { + if (!var_representation.empty()) + s.Printf("%s=%s", var_name, var_representation.str().c_str()); + else + s.Printf("%s=%s at %s", var_name, + var_value_sp->GetTypeName().GetCString(), + var_value_sp->GetLocationAsCString()); + } else + s.Printf("%s=<unavailable>", var_name); + } + + if (close_paren) + s.PutCString(close_paren); + else + s.PutChar(')'); + + } else { + s.PutCString(cstr); + } + return true; + } + } else if (sc->symbol) { + const char *cstr = sc->symbol->GetName().AsCString(nullptr); + if (cstr) { + s.PutCString(cstr); + return true; + } + } + } + } + return false; + + case Entry::Type::FunctionAddrOffset: + if (addr) { + if (DumpAddressOffsetFromFunction(s, sc, exe_ctx, *addr, false, false, + false)) + return true; + } + return false; + + case Entry::Type::FunctionAddrOffsetConcrete: + if (addr) { + if (DumpAddressOffsetFromFunction(s, sc, exe_ctx, *addr, true, true, + true)) + return true; + } + return false; + + case Entry::Type::FunctionLineOffset: + return (DumpAddressOffsetFromFunction(s, sc, exe_ctx, + sc->line_entry.range.GetBaseAddress(), + false, false, false)); + + case Entry::Type::FunctionPCOffset: + if (exe_ctx) { + StackFrame *frame = exe_ctx->GetFramePtr(); + if (frame) { + if (DumpAddressOffsetFromFunction(s, sc, exe_ctx, + frame->GetFrameCodeAddress(), false, + false, false)) + return true; + } + } + return false; + + case Entry::Type::FunctionChanged: + return function_changed; + + case Entry::Type::FunctionIsOptimized: { + bool is_optimized = false; + if (sc->function && sc->function->GetIsOptimized()) { + is_optimized = true; + } + return is_optimized; + } + + case Entry::Type::FunctionInitial: + return initial_function; + + case Entry::Type::LineEntryFile: + if (sc && sc->line_entry.IsValid()) { + Module *module = sc->module_sp.get(); + if (module) { + if (DumpFile(s, sc->line_entry.file, (FileKind)entry.number)) + return true; + } + } + return false; + + case Entry::Type::LineEntryLineNumber: + if (sc && sc->line_entry.IsValid()) { + const char *format = "%" PRIu32; + if (!entry.printf_format.empty()) + format = entry.printf_format.c_str(); + s.Printf(format, sc->line_entry.line); + return true; + } + return false; + + case Entry::Type::LineEntryColumn: + if (sc && sc->line_entry.IsValid() && sc->line_entry.column) { + const char *format = "%" PRIu32; + if (!entry.printf_format.empty()) + format = entry.printf_format.c_str(); + s.Printf(format, sc->line_entry.column); + return true; + } + return false; + + case Entry::Type::LineEntryStartAddress: + case Entry::Type::LineEntryEndAddress: + if (sc && sc->line_entry.range.GetBaseAddress().IsValid()) { + Address addr = sc->line_entry.range.GetBaseAddress(); + + if (entry.type == Entry::Type::LineEntryEndAddress) + addr.Slide(sc->line_entry.range.GetByteSize()); + if (DumpAddress(s, sc, exe_ctx, addr, false)) + return true; + } + return false; + + case Entry::Type::CurrentPCArrow: + if (addr && exe_ctx && exe_ctx->GetFramePtr()) { + RegisterContextSP reg_ctx = + exe_ctx->GetFramePtr()->GetRegisterContextSP(); + if (reg_ctx) { + addr_t pc_loadaddr = reg_ctx->GetPC(); + if (pc_loadaddr != LLDB_INVALID_ADDRESS) { + Address pc; + pc.SetLoadAddress(pc_loadaddr, exe_ctx->GetTargetPtr()); + if (pc == *addr) { + s.Printf("-> "); + return true; + } + } + } + s.Printf(" "); + return true; + } + return false; + } + return false; +} + +static bool DumpCommaSeparatedChildEntryNames( + Stream &s, const FormatEntity::Entry::Definition *parent) { + if (parent->children) { + const size_t n = parent->num_children; + for (size_t i = 0; i < n; ++i) { + if (i > 0) + s.PutCString(", "); + s.Printf("\"%s\"", parent->children[i].name); + } + return true; + } + return false; +} + +static Status ParseEntry(const llvm::StringRef &format_str, + const FormatEntity::Entry::Definition *parent, + FormatEntity::Entry &entry) { + Status error; + + const size_t sep_pos = format_str.find_first_of(".[:"); + const char sep_char = + (sep_pos == llvm::StringRef::npos) ? '\0' : format_str[sep_pos]; + llvm::StringRef key = format_str.substr(0, sep_pos); + + const size_t n = parent->num_children; + for (size_t i = 0; i < n; ++i) { + const FormatEntity::Entry::Definition *entry_def = parent->children + i; + if (key.equals(entry_def->name) || entry_def->name[0] == '*') { + llvm::StringRef value; + if (sep_char) + value = + format_str.substr(sep_pos + (entry_def->keep_separator ? 0 : 1)); + switch (entry_def->type) { + case FormatEntity::Entry::Type::ParentString: + entry.string = format_str.str(); + return error; // Success + + case FormatEntity::Entry::Type::ParentNumber: + entry.number = entry_def->data; + return error; // Success + + case FormatEntity::Entry::Type::EscapeCode: + entry.type = entry_def->type; + entry.string = entry_def->string; + return error; // Success + + default: + entry.type = entry_def->type; + break; + } + + if (value.empty()) { + if (entry_def->type == FormatEntity::Entry::Type::Invalid) { + if (entry_def->children) { + StreamString error_strm; + error_strm.Printf("'%s' can't be specified on its own, you must " + "access one of its children: ", + entry_def->name); + DumpCommaSeparatedChildEntryNames(error_strm, entry_def); + error.SetErrorStringWithFormat("%s", error_strm.GetData()); + } else if (sep_char == ':') { + // Any value whose separator is a with a ':' means this value has a + // string argument that needs to be stored in the entry (like + // "${script.var:}"). In this case the string value is the empty + // string which is ok. + } else { + error.SetErrorStringWithFormat("%s", "invalid entry definitions"); + } + } + } else { + if (entry_def->children) { + error = ParseEntry(value, entry_def, entry); + } else if (sep_char == ':') { + // Any value whose separator is a with a ':' means this value has a + // string argument that needs to be stored in the entry (like + // "${script.var:modulename.function}") + entry.string = value.str(); + } else { + error.SetErrorStringWithFormat( + "'%s' followed by '%s' but it has no children", key.str().c_str(), + value.str().c_str()); + } + } + return error; + } + } + StreamString error_strm; + if (parent->type == FormatEntity::Entry::Type::Root) + error_strm.Printf( + "invalid top level item '%s'. Valid top level items are: ", + key.str().c_str()); + else + error_strm.Printf("invalid member '%s' in '%s'. Valid members are: ", + key.str().c_str(), parent->name); + DumpCommaSeparatedChildEntryNames(error_strm, parent); + error.SetErrorStringWithFormat("%s", error_strm.GetData()); + return error; +} + +static const FormatEntity::Entry::Definition * +FindEntry(const llvm::StringRef &format_str, + const FormatEntity::Entry::Definition *parent, + llvm::StringRef &remainder) { + Status error; + + std::pair<llvm::StringRef, llvm::StringRef> p = format_str.split('.'); + const size_t n = parent->num_children; + for (size_t i = 0; i < n; ++i) { + const FormatEntity::Entry::Definition *entry_def = parent->children + i; + if (p.first.equals(entry_def->name) || entry_def->name[0] == '*') { + if (p.second.empty()) { + if (format_str.back() == '.') + remainder = format_str.drop_front(format_str.size() - 1); + else + remainder = llvm::StringRef(); // Exact match + return entry_def; + } else { + if (entry_def->children) { + return FindEntry(p.second, entry_def, remainder); + } else { + remainder = p.second; + return entry_def; + } + } + } + } + remainder = format_str; + return parent; +} + +Status FormatEntity::ParseInternal(llvm::StringRef &format, Entry &parent_entry, + uint32_t depth) { + Status error; + while (!format.empty() && error.Success()) { + const size_t non_special_chars = format.find_first_of("${}\\"); + + if (non_special_chars == llvm::StringRef::npos) { + // No special characters, just string bytes so add them and we are done + parent_entry.AppendText(format); + return error; + } + + if (non_special_chars > 0) { + // We have a special character, so add all characters before these as a + // plain string + parent_entry.AppendText(format.substr(0, non_special_chars)); + format = format.drop_front(non_special_chars); + } + + switch (format[0]) { + case '\0': + return error; + + case '{': { + format = format.drop_front(); // Skip the '{' + Entry scope_entry(Entry::Type::Scope); + error = FormatEntity::ParseInternal(format, scope_entry, depth + 1); + if (error.Fail()) + return error; + parent_entry.AppendEntry(std::move(scope_entry)); + } break; + + case '}': + if (depth == 0) + error.SetErrorString("unmatched '}' character"); + else + format = + format + .drop_front(); // Skip the '}' as we are at the end of the scope + return error; + + case '\\': { + format = format.drop_front(); // Skip the '\' character + if (format.empty()) { + error.SetErrorString( + "'\\' character was not followed by another character"); + return error; + } + + const char desens_char = format[0]; + format = format.drop_front(); // Skip the desensitized char character + switch (desens_char) { + case 'a': + parent_entry.AppendChar('\a'); + break; + case 'b': + parent_entry.AppendChar('\b'); + break; + case 'f': + parent_entry.AppendChar('\f'); + break; + case 'n': + parent_entry.AppendChar('\n'); + break; + case 'r': + parent_entry.AppendChar('\r'); + break; + case 't': + parent_entry.AppendChar('\t'); + break; + case 'v': + parent_entry.AppendChar('\v'); + break; + case '\'': + parent_entry.AppendChar('\''); + break; + case '\\': + parent_entry.AppendChar('\\'); + break; + case '0': + // 1 to 3 octal chars + { + // Make a string that can hold onto the initial zero char, up to 3 + // octal digits, and a terminating NULL. + char oct_str[5] = {0, 0, 0, 0, 0}; + + int i; + for (i = 0; (format[i] >= '0' && format[i] <= '7') && i < 4; ++i) + oct_str[i] = format[i]; + + // We don't want to consume the last octal character since the main + // for loop will do this for us, so we advance p by one less than i + // (even if i is zero) + format = format.drop_front(i); + unsigned long octal_value = ::strtoul(oct_str, nullptr, 8); + if (octal_value <= UINT8_MAX) { + parent_entry.AppendChar((char)octal_value); + } else { + error.SetErrorString("octal number is larger than a single byte"); + return error; + } + } + break; + + case 'x': + // hex number in the format + if (isxdigit(format[0])) { + // Make a string that can hold onto two hex chars plus a + // NULL terminator + char hex_str[3] = {0, 0, 0}; + hex_str[0] = format[0]; + + format = format.drop_front(); + + if (isxdigit(format[0])) { + hex_str[1] = format[0]; + format = format.drop_front(); + } + + unsigned long hex_value = strtoul(hex_str, nullptr, 16); + if (hex_value <= UINT8_MAX) { + parent_entry.AppendChar((char)hex_value); + } else { + error.SetErrorString("hex number is larger than a single byte"); + return error; + } + } else { + parent_entry.AppendChar(desens_char); + } + break; + + default: + // Just desensitize any other character by just printing what came + // after the '\' + parent_entry.AppendChar(desens_char); + break; + } + } break; + + case '$': + if (format.size() == 1) { + // '$' at the end of a format string, just print the '$' + parent_entry.AppendText("$"); + } else { + format = format.drop_front(); // Skip the '$' + + if (format[0] == '{') { + format = format.drop_front(); // Skip the '{' + + llvm::StringRef variable, variable_format; + error = FormatEntity::ExtractVariableInfo(format, variable, + variable_format); + if (error.Fail()) + return error; + bool verify_is_thread_id = false; + Entry entry; + if (!variable_format.empty()) { + entry.printf_format = variable_format.str(); + + // If the format contains a '%' we are going to assume this is a + // printf style format. So if you want to format your thread ID + // using "0x%llx" you can use: ${thread.id%0x%llx} + // + // If there is no '%' in the format, then it is assumed to be a + // LLDB format name, or one of the extended formats specified in + // the switch statement below. + + if (entry.printf_format.find('%') == std::string::npos) { + bool clear_printf = false; + + if (FormatManager::GetFormatFromCString( + entry.printf_format.c_str(), false, entry.fmt)) { + // We have an LLDB format, so clear the printf format + clear_printf = true; + } else if (entry.printf_format.size() == 1) { + switch (entry.printf_format[0]) { + case '@': // if this is an @ sign, print ObjC description + entry.number = ValueObject:: + eValueObjectRepresentationStyleLanguageSpecific; + clear_printf = true; + break; + case 'V': // if this is a V, print the value using the default + // format + entry.number = + ValueObject::eValueObjectRepresentationStyleValue; + clear_printf = true; + break; + case 'L': // if this is an L, print the location of the value + entry.number = + ValueObject::eValueObjectRepresentationStyleLocation; + clear_printf = true; + break; + case 'S': // if this is an S, print the summary after all + entry.number = + ValueObject::eValueObjectRepresentationStyleSummary; + clear_printf = true; + break; + case '#': // if this is a '#', print the number of children + entry.number = + ValueObject::eValueObjectRepresentationStyleChildrenCount; + clear_printf = true; + break; + case 'T': // if this is a 'T', print the type + entry.number = + ValueObject::eValueObjectRepresentationStyleType; + clear_printf = true; + break; + case 'N': // if this is a 'N', print the name + entry.number = + ValueObject::eValueObjectRepresentationStyleName; + clear_printf = true; + break; + case '>': // if this is a '>', print the expression path + entry.number = ValueObject:: + eValueObjectRepresentationStyleExpressionPath; + clear_printf = true; + break; + default: + error.SetErrorStringWithFormat("invalid format: '%s'", + entry.printf_format.c_str()); + return error; + } + } else if (FormatManager::GetFormatFromCString( + entry.printf_format.c_str(), true, entry.fmt)) { + clear_printf = true; + } else if (entry.printf_format == "tid") { + verify_is_thread_id = true; + } else { + error.SetErrorStringWithFormat("invalid format: '%s'", + entry.printf_format.c_str()); + return error; + } + + // Our format string turned out to not be a printf style format + // so lets clear the string + if (clear_printf) + entry.printf_format.clear(); + } + } + + // Check for dereferences + if (variable[0] == '*') { + entry.deref = true; + variable = variable.drop_front(); + } + + error = ParseEntry(variable, &g_root, entry); + if (error.Fail()) + return error; + + if (verify_is_thread_id) { + if (entry.type != Entry::Type::ThreadID && + entry.type != Entry::Type::ThreadProtocolID) { + error.SetErrorString("the 'tid' format can only be used on " + "${thread.id} and ${thread.protocol_id}"); + } + } + + switch (entry.type) { + case Entry::Type::Variable: + case Entry::Type::VariableSynthetic: + if (entry.number == 0) { + if (entry.string.empty()) + entry.number = + ValueObject::eValueObjectRepresentationStyleValue; + else + entry.number = + ValueObject::eValueObjectRepresentationStyleSummary; + } + break; + default: + // Make sure someone didn't try to dereference anything but ${var} + // or ${svar} + if (entry.deref) { + error.SetErrorStringWithFormat( + "${%s} can't be dereferenced, only ${var} and ${svar} can.", + variable.str().c_str()); + return error; + } + } + parent_entry.AppendEntry(std::move(entry)); + } + } + break; + } + } + return error; +} + +Status FormatEntity::ExtractVariableInfo(llvm::StringRef &format_str, + llvm::StringRef &variable_name, + llvm::StringRef &variable_format) { + Status error; + variable_name = llvm::StringRef(); + variable_format = llvm::StringRef(); + + const size_t paren_pos = format_str.find('}'); + if (paren_pos != llvm::StringRef::npos) { + const size_t percent_pos = format_str.find('%'); + if (percent_pos < paren_pos) { + if (percent_pos > 0) { + if (percent_pos > 1) + variable_name = format_str.substr(0, percent_pos); + variable_format = + format_str.substr(percent_pos + 1, paren_pos - (percent_pos + 1)); + } + } else { + variable_name = format_str.substr(0, paren_pos); + } + // Strip off elements and the formatting and the trailing '}' + format_str = format_str.substr(paren_pos + 1); + } else { + error.SetErrorStringWithFormat( + "missing terminating '}' character for '${%s'", + format_str.str().c_str()); + } + return error; +} + +bool FormatEntity::FormatFileSpec(const FileSpec &file_spec, Stream &s, + llvm::StringRef variable_name, + llvm::StringRef variable_format) { + if (variable_name.empty() || variable_name.equals(".fullpath")) { + file_spec.Dump(&s); + return true; + } else if (variable_name.equals(".basename")) { + s.PutCString(file_spec.GetFilename().AsCString("")); + return true; + } else if (variable_name.equals(".dirname")) { + s.PutCString(file_spec.GetFilename().AsCString("")); + return true; + } + return false; +} + +static std::string MakeMatch(const llvm::StringRef &prefix, + const char *suffix) { + std::string match(prefix.str()); + match.append(suffix); + return match; +} + +static void AddMatches(const FormatEntity::Entry::Definition *def, + const llvm::StringRef &prefix, + const llvm::StringRef &match_prefix, + StringList &matches) { + const size_t n = def->num_children; + if (n > 0) { + for (size_t i = 0; i < n; ++i) { + std::string match = prefix.str(); + if (match_prefix.empty()) + matches.AppendString(MakeMatch(prefix, def->children[i].name)); + else if (strncmp(def->children[i].name, match_prefix.data(), + match_prefix.size()) == 0) + matches.AppendString( + MakeMatch(prefix, def->children[i].name + match_prefix.size())); + } + } +} + +size_t FormatEntity::AutoComplete(CompletionRequest &request) { + llvm::StringRef str = request.GetCursorArgumentPrefix().str(); + + request.SetWordComplete(false); + str = str.drop_front(request.GetMatchStartPoint()); + + const size_t dollar_pos = str.rfind('$'); + if (dollar_pos == llvm::StringRef::npos) + return 0; + + // Hitting TAB after $ at the end of the string add a "{" + if (dollar_pos == str.size() - 1) { + std::string match = str.str(); + match.append("{"); + request.AddCompletion(match); + return 1; + } + + if (str[dollar_pos + 1] != '{') + return 0; + + const size_t close_pos = str.find('}', dollar_pos + 2); + if (close_pos != llvm::StringRef::npos) + return 0; + + const size_t format_pos = str.find('%', dollar_pos + 2); + if (format_pos != llvm::StringRef::npos) + return 0; + + llvm::StringRef partial_variable(str.substr(dollar_pos + 2)); + if (partial_variable.empty()) { + // Suggest all top level entites as we are just past "${" + StringList new_matches; + AddMatches(&g_root, str, llvm::StringRef(), new_matches); + request.AddCompletions(new_matches); + return request.GetNumberOfMatches(); + } + + // We have a partially specified variable, find it + llvm::StringRef remainder; + const FormatEntity::Entry::Definition *entry_def = + FindEntry(partial_variable, &g_root, remainder); + if (!entry_def) + return 0; + + const size_t n = entry_def->num_children; + + if (remainder.empty()) { + // Exact match + if (n > 0) { + // "${thread.info" <TAB> + request.AddCompletion(MakeMatch(str, ".")); + } else { + // "${thread.id" <TAB> + request.AddCompletion(MakeMatch(str, "}")); + request.SetWordComplete(true); + } + } else if (remainder.equals(".")) { + // "${thread." <TAB> + StringList new_matches; + AddMatches(entry_def, str, llvm::StringRef(), new_matches); + request.AddCompletions(new_matches); + } else { + // We have a partial match + // "${thre" <TAB> + StringList new_matches; + AddMatches(entry_def, str, remainder, new_matches); + request.AddCompletions(new_matches); + } + return request.GetNumberOfMatches(); +} |