656 строки
23 KiB
C++
656 строки
23 KiB
C++
//===--- PPCallbacksTracker.cpp - Preprocessor tracker -*--*-------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===--------------------------------------------------------------------===//
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///
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/// \file
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/// \brief Implementations for preprocessor tracking.
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///
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/// See the header for details.
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///
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//===--------------------------------------------------------------------===//
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#include "PPCallbacksTracker.h"
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#include "clang/Lex/MacroArgs.h"
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#include "llvm/Support/raw_ostream.h"
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#include <stdarg.h>
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#include <stdio.h>
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// Utility functions.
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// Get a "file:line:column" source location string.
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static std::string getSourceLocationString(clang::Preprocessor &PP,
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clang::SourceLocation Loc) {
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if (Loc.isInvalid())
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return std::string("(none)");
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if (Loc.isFileID()) {
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clang::PresumedLoc PLoc = PP.getSourceManager().getPresumedLoc(Loc);
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if (PLoc.isInvalid()) {
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return std::string("(invalid)");
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}
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std::string Str;
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llvm::raw_string_ostream SS(Str);
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// The macro expansion and spelling pos is identical for file locs.
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SS << "\"" << PLoc.getFilename() << ':' << PLoc.getLine() << ':'
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<< PLoc.getColumn() << "\"";
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std::string Result = SS.str();
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// YAML treats backslash as escape, so use forward slashes.
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std::replace(Result.begin(), Result.end(), '\\', '/');
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return Result;
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}
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return std::string("(nonfile)");
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}
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// Enum string tables.
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// FileChangeReason strings.
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static const char *const FileChangeReasonStrings[] = {
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"EnterFile", "ExitFile", "SystemHeaderPragma", "RenameFile"
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};
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// CharacteristicKind strings.
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static const char *const CharacteristicKindStrings[] = { "C_User", "C_System",
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"C_ExternCSystem" };
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// MacroDirective::Kind strings.
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static const char *const MacroDirectiveKindStrings[] = {
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"MD_Define","MD_Undefine", "MD_Visibility"
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};
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// PragmaIntroducerKind strings.
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static const char *const PragmaIntroducerKindStrings[] = { "PIK_HashPragma",
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"PIK__Pragma",
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"PIK___pragma" };
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// PragmaMessageKind strings.
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static const char *const PragmaMessageKindStrings[] = {
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"PMK_Message", "PMK_Warning", "PMK_Error"
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};
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// ConditionValueKind strings.
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static const char *const ConditionValueKindStrings[] = {
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"CVK_NotEvaluated", "CVK_False", "CVK_True"
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};
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// Mapping strings.
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static const char *const MappingStrings[] = { "0", "MAP_IGNORE",
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"MAP_REMARK", "MAP_WARNING",
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"MAP_ERROR", "MAP_FATAL" };
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// PPCallbacksTracker functions.
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PPCallbacksTracker::PPCallbacksTracker(llvm::SmallSet<std::string, 4> &Ignore,
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std::vector<CallbackCall> &CallbackCalls,
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clang::Preprocessor &PP)
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: CallbackCalls(CallbackCalls), Ignore(Ignore), PP(PP) {}
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PPCallbacksTracker::~PPCallbacksTracker() {}
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// Callback functions.
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// Callback invoked whenever a source file is entered or exited.
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void PPCallbacksTracker::FileChanged(
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clang::SourceLocation Loc, clang::PPCallbacks::FileChangeReason Reason,
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clang::SrcMgr::CharacteristicKind FileType, clang::FileID PrevFID) {
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beginCallback("FileChanged");
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appendArgument("Loc", Loc);
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appendArgument("Reason", Reason, FileChangeReasonStrings);
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appendArgument("FileType", FileType, CharacteristicKindStrings);
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appendArgument("PrevFID", PrevFID);
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}
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// Callback invoked whenever a source file is skipped as the result
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// of header guard optimization.
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void
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PPCallbacksTracker::FileSkipped(const clang::FileEntry &SkippedFile,
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const clang::Token &FilenameTok,
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clang::SrcMgr::CharacteristicKind FileType) {
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beginCallback("FileSkipped");
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appendArgument("ParentFile", &SkippedFile);
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appendArgument("FilenameTok", FilenameTok);
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appendArgument("FileType", FileType, CharacteristicKindStrings);
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}
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// Callback invoked whenever an inclusion directive results in a
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// file-not-found error.
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bool
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PPCallbacksTracker::FileNotFound(llvm::StringRef FileName,
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llvm::SmallVectorImpl<char> &RecoveryPath) {
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beginCallback("FileNotFound");
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appendFilePathArgument("FileName", FileName);
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return false;
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}
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// Callback invoked whenever an inclusion directive of
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// any kind (#include, #import, etc.) has been processed, regardless
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// of whether the inclusion will actually result in an inclusion.
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void PPCallbacksTracker::InclusionDirective(
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clang::SourceLocation HashLoc, const clang::Token &IncludeTok,
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llvm::StringRef FileName, bool IsAngled,
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clang::CharSourceRange FilenameRange, const clang::FileEntry *File,
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llvm::StringRef SearchPath, llvm::StringRef RelativePath,
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const clang::Module *Imported) {
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beginCallback("InclusionDirective");
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appendArgument("IncludeTok", IncludeTok);
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appendFilePathArgument("FileName", FileName);
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appendArgument("IsAngled", IsAngled);
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appendArgument("FilenameRange", FilenameRange);
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appendArgument("File", File);
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appendFilePathArgument("SearchPath", SearchPath);
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appendFilePathArgument("RelativePath", RelativePath);
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appendArgument("Imported", Imported);
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}
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// Callback invoked whenever there was an explicit module-import
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// syntax.
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void PPCallbacksTracker::moduleImport(clang::SourceLocation ImportLoc,
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clang::ModuleIdPath Path,
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const clang::Module *Imported) {
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beginCallback("moduleImport");
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appendArgument("ImportLoc", ImportLoc);
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appendArgument("Path", Path);
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appendArgument("Imported", Imported);
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}
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// Callback invoked when the end of the main file is reached.
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// No subsequent callbacks will be made.
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void PPCallbacksTracker::EndOfMainFile() { beginCallback("EndOfMainFile"); }
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// Callback invoked when a #ident or #sccs directive is read.
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void PPCallbacksTracker::Ident(clang::SourceLocation Loc, llvm::StringRef Str) {
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beginCallback("Ident");
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appendArgument("Loc", Loc);
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appendArgument("Str", Str);
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}
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// Callback invoked when start reading any pragma directive.
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void
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PPCallbacksTracker::PragmaDirective(clang::SourceLocation Loc,
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clang::PragmaIntroducerKind Introducer) {
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beginCallback("PragmaDirective");
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appendArgument("Loc", Loc);
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appendArgument("Introducer", Introducer, PragmaIntroducerKindStrings);
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}
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// Callback invoked when a #pragma comment directive is read.
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void PPCallbacksTracker::PragmaComment(clang::SourceLocation Loc,
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const clang::IdentifierInfo *Kind,
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llvm::StringRef Str) {
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beginCallback("PragmaComment");
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appendArgument("Loc", Loc);
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appendArgument("Kind", Kind);
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appendArgument("Str", Str);
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}
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// Callback invoked when a #pragma detect_mismatch directive is
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// read.
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void PPCallbacksTracker::PragmaDetectMismatch(clang::SourceLocation Loc,
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llvm::StringRef Name,
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llvm::StringRef Value) {
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beginCallback("PragmaDetectMismatch");
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appendArgument("Loc", Loc);
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appendArgument("Name", Name);
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appendArgument("Value", Value);
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}
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// Callback invoked when a #pragma clang __debug directive is read.
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void PPCallbacksTracker::PragmaDebug(clang::SourceLocation Loc,
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llvm::StringRef DebugType) {
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beginCallback("PragmaDebug");
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appendArgument("Loc", Loc);
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appendArgument("DebugType", DebugType);
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}
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// Callback invoked when a #pragma message directive is read.
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void PPCallbacksTracker::PragmaMessage(
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clang::SourceLocation Loc, llvm::StringRef Namespace,
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clang::PPCallbacks::PragmaMessageKind Kind, llvm::StringRef Str) {
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beginCallback("PragmaMessage");
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appendArgument("Loc", Loc);
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appendArgument("Namespace", Namespace);
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appendArgument("Kind", Kind, PragmaMessageKindStrings);
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appendArgument("Str", Str);
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}
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// Callback invoked when a #pragma gcc dianostic push directive
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// is read.
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void PPCallbacksTracker::PragmaDiagnosticPush(clang::SourceLocation Loc,
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llvm::StringRef Namespace) {
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beginCallback("PragmaDiagnosticPush");
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appendArgument("Loc", Loc);
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appendArgument("Namespace", Namespace);
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}
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// Callback invoked when a #pragma gcc dianostic pop directive
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// is read.
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void PPCallbacksTracker::PragmaDiagnosticPop(clang::SourceLocation Loc,
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llvm::StringRef Namespace) {
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beginCallback("PragmaDiagnosticPop");
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appendArgument("Loc", Loc);
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appendArgument("Namespace", Namespace);
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}
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// Callback invoked when a #pragma gcc dianostic directive is read.
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void PPCallbacksTracker::PragmaDiagnostic(clang::SourceLocation Loc,
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llvm::StringRef Namespace,
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clang::diag::Severity Mapping,
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llvm::StringRef Str) {
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beginCallback("PragmaDiagnostic");
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appendArgument("Loc", Loc);
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appendArgument("Namespace", Namespace);
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appendArgument("Mapping", (unsigned)Mapping, MappingStrings);
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appendArgument("Str", Str);
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}
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// Called when an OpenCL extension is either disabled or
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// enabled with a pragma.
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void PPCallbacksTracker::PragmaOpenCLExtension(
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clang::SourceLocation NameLoc, const clang::IdentifierInfo *Name,
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clang::SourceLocation StateLoc, unsigned State) {
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beginCallback("PragmaOpenCLExtension");
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appendArgument("NameLoc", NameLoc);
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appendArgument("Name", Name);
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appendArgument("StateLoc", StateLoc);
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appendArgument("State", (int)State);
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}
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// Callback invoked when a #pragma warning directive is read.
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void PPCallbacksTracker::PragmaWarning(clang::SourceLocation Loc,
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llvm::StringRef WarningSpec,
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llvm::ArrayRef<int> Ids) {
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beginCallback("PragmaWarning");
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appendArgument("Loc", Loc);
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appendArgument("WarningSpec", WarningSpec);
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std::string Str;
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llvm::raw_string_ostream SS(Str);
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SS << "[";
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for (int i = 0, e = Ids.size(); i != e; ++i) {
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if (i)
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SS << ", ";
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SS << Ids[i];
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}
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SS << "]";
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appendArgument("Ids", SS.str());
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}
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// Callback invoked when a #pragma warning(push) directive is read.
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void PPCallbacksTracker::PragmaWarningPush(clang::SourceLocation Loc,
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int Level) {
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beginCallback("PragmaWarningPush");
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appendArgument("Loc", Loc);
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appendArgument("Level", Level);
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}
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// Callback invoked when a #pragma warning(pop) directive is read.
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void PPCallbacksTracker::PragmaWarningPop(clang::SourceLocation Loc) {
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beginCallback("PragmaWarningPop");
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appendArgument("Loc", Loc);
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}
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// Called by Preprocessor::HandleMacroExpandedIdentifier when a
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// macro invocation is found.
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void
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PPCallbacksTracker::MacroExpands(const clang::Token &MacroNameTok,
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const clang::MacroDefinition &MacroDefinition,
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clang::SourceRange Range,
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const clang::MacroArgs *Args) {
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beginCallback("MacroExpands");
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appendArgument("MacroNameTok", MacroNameTok);
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appendArgument("MacroDefinition", MacroDefinition);
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appendArgument("Range", Range);
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appendArgument("Args", Args);
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}
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// Hook called whenever a macro definition is seen.
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void
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PPCallbacksTracker::MacroDefined(const clang::Token &MacroNameTok,
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const clang::MacroDirective *MacroDirective) {
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beginCallback("MacroDefined");
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appendArgument("MacroNameTok", MacroNameTok);
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appendArgument("MacroDirective", MacroDirective);
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}
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// Hook called whenever a macro #undef is seen.
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void PPCallbacksTracker::MacroUndefined(
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const clang::Token &MacroNameTok,
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const clang::MacroDefinition &MacroDefinition) {
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beginCallback("MacroUndefined");
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appendArgument("MacroNameTok", MacroNameTok);
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appendArgument("MacroDefinition", MacroDefinition);
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}
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// Hook called whenever the 'defined' operator is seen.
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void PPCallbacksTracker::Defined(const clang::Token &MacroNameTok,
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const clang::MacroDefinition &MacroDefinition,
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clang::SourceRange Range) {
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beginCallback("Defined");
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appendArgument("MacroNameTok", MacroNameTok);
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appendArgument("MacroDefinition", MacroDefinition);
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appendArgument("Range", Range);
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}
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// Hook called when a source range is skipped.
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void PPCallbacksTracker::SourceRangeSkipped(clang::SourceRange Range) {
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beginCallback("SourceRangeSkipped");
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appendArgument("Range", Range);
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}
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// Hook called whenever an #if is seen.
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void PPCallbacksTracker::If(clang::SourceLocation Loc,
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clang::SourceRange ConditionRange,
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ConditionValueKind ConditionValue) {
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beginCallback("If");
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appendArgument("Loc", Loc);
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appendArgument("ConditionRange", ConditionRange);
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appendArgument("ConditionValue", ConditionValue, ConditionValueKindStrings);
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}
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// Hook called whenever an #elif is seen.
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void PPCallbacksTracker::Elif(clang::SourceLocation Loc,
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clang::SourceRange ConditionRange,
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ConditionValueKind ConditionValue,
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clang::SourceLocation IfLoc) {
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beginCallback("Elif");
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appendArgument("Loc", Loc);
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appendArgument("ConditionRange", ConditionRange);
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appendArgument("ConditionValue", ConditionValue, ConditionValueKindStrings);
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appendArgument("IfLoc", IfLoc);
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}
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// Hook called whenever an #ifdef is seen.
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void PPCallbacksTracker::Ifdef(clang::SourceLocation Loc,
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const clang::Token &MacroNameTok,
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const clang::MacroDefinition &MacroDefinition) {
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beginCallback("Ifdef");
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appendArgument("Loc", Loc);
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appendArgument("MacroNameTok", MacroNameTok);
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appendArgument("MacroDefinition", MacroDefinition);
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}
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// Hook called whenever an #ifndef is seen.
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void PPCallbacksTracker::Ifndef(clang::SourceLocation Loc,
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const clang::Token &MacroNameTok,
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const clang::MacroDefinition &MacroDefinition) {
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beginCallback("Ifndef");
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appendArgument("Loc", Loc);
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appendArgument("MacroNameTok", MacroNameTok);
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appendArgument("MacroDefinition", MacroDefinition);
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}
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// Hook called whenever an #else is seen.
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void PPCallbacksTracker::Else(clang::SourceLocation Loc,
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clang::SourceLocation IfLoc) {
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beginCallback("Else");
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appendArgument("Loc", Loc);
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appendArgument("IfLoc", IfLoc);
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}
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// Hook called whenever an #endif is seen.
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void PPCallbacksTracker::Endif(clang::SourceLocation Loc,
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clang::SourceLocation IfLoc) {
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beginCallback("Endif");
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appendArgument("Loc", Loc);
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appendArgument("IfLoc", IfLoc);
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}
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// Helper functions.
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// Start a new callback.
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void PPCallbacksTracker::beginCallback(const char *Name) {
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DisableTrace = Ignore.count(std::string(Name));
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if (DisableTrace)
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return;
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CallbackCalls.push_back(CallbackCall(Name));
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}
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// Append a bool argument to the top trace item.
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void PPCallbacksTracker::appendArgument(const char *Name, bool Value) {
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appendArgument(Name, (Value ? "true" : "false"));
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}
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// Append an int argument to the top trace item.
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void PPCallbacksTracker::appendArgument(const char *Name, int Value) {
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std::string Str;
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llvm::raw_string_ostream SS(Str);
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SS << Value;
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appendArgument(Name, SS.str());
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}
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// Append a string argument to the top trace item.
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void PPCallbacksTracker::appendArgument(const char *Name, const char *Value) {
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if (DisableTrace)
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return;
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CallbackCalls.back().Arguments.push_back(Argument(Name, Value));
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}
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// Append a string object argument to the top trace item.
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void PPCallbacksTracker::appendArgument(const char *Name,
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llvm::StringRef Value) {
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appendArgument(Name, Value.str());
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}
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// Append a string object argument to the top trace item.
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void PPCallbacksTracker::appendArgument(const char *Name,
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const std::string &Value) {
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appendArgument(Name, Value.c_str());
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}
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// Append a token argument to the top trace item.
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void PPCallbacksTracker::appendArgument(const char *Name,
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const clang::Token &Value) {
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appendArgument(Name, PP.getSpelling(Value));
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}
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// Append an enum argument to the top trace item.
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void PPCallbacksTracker::appendArgument(const char *Name, int Value,
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const char *const Strings[]) {
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appendArgument(Name, Strings[Value]);
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}
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// Append a FileID argument to the top trace item.
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void PPCallbacksTracker::appendArgument(const char *Name, clang::FileID Value) {
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if (Value.isInvalid()) {
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appendArgument(Name, "(invalid)");
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return;
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}
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const clang::FileEntry *FileEntry =
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PP.getSourceManager().getFileEntryForID(Value);
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if (!FileEntry) {
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appendArgument(Name, "(getFileEntryForID failed)");
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return;
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}
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appendFilePathArgument(Name, FileEntry->getName());
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}
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// Append a FileEntry argument to the top trace item.
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void PPCallbacksTracker::appendArgument(const char *Name,
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const clang::FileEntry *Value) {
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if (!Value) {
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appendArgument(Name, "(null)");
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return;
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}
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appendFilePathArgument(Name, Value->getName());
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}
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// Append a SourceLocation argument to the top trace item.
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void PPCallbacksTracker::appendArgument(const char *Name,
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clang::SourceLocation Value) {
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if (Value.isInvalid()) {
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appendArgument(Name, "(invalid)");
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return;
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}
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appendArgument(Name, getSourceLocationString(PP, Value).c_str());
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}
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// Append a SourceRange argument to the top trace item.
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void PPCallbacksTracker::appendArgument(const char *Name,
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clang::SourceRange Value) {
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if (DisableTrace)
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return;
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if (Value.isInvalid()) {
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appendArgument(Name, "(invalid)");
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return;
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}
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std::string Str;
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llvm::raw_string_ostream SS(Str);
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SS << "[" << getSourceLocationString(PP, Value.getBegin()) << ", "
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<< getSourceLocationString(PP, Value.getEnd()) << "]";
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appendArgument(Name, SS.str());
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}
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// Append a CharSourceRange argument to the top trace item.
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void PPCallbacksTracker::appendArgument(const char *Name,
|
|
clang::CharSourceRange Value) {
|
|
if (Value.isInvalid()) {
|
|
appendArgument(Name, "(invalid)");
|
|
return;
|
|
}
|
|
appendArgument(Name, getSourceString(Value).str().c_str());
|
|
}
|
|
|
|
// Append a SourceLocation argument to the top trace item.
|
|
void PPCallbacksTracker::appendArgument(const char *Name,
|
|
clang::ModuleIdPath Value) {
|
|
if (DisableTrace)
|
|
return;
|
|
std::string Str;
|
|
llvm::raw_string_ostream SS(Str);
|
|
SS << "[";
|
|
for (int I = 0, E = Value.size(); I != E; ++I) {
|
|
if (I)
|
|
SS << ", ";
|
|
SS << "{"
|
|
<< "Name: " << Value[I].first->getName() << ", "
|
|
<< "Loc: " << getSourceLocationString(PP, Value[I].second) << "}";
|
|
}
|
|
SS << "]";
|
|
appendArgument(Name, SS.str());
|
|
}
|
|
|
|
// Append an IdentifierInfo argument to the top trace item.
|
|
void PPCallbacksTracker::appendArgument(const char *Name,
|
|
const clang::IdentifierInfo *Value) {
|
|
if (!Value) {
|
|
appendArgument(Name, "(null)");
|
|
return;
|
|
}
|
|
appendArgument(Name, Value->getName().str().c_str());
|
|
}
|
|
|
|
// Append a MacroDirective argument to the top trace item.
|
|
void PPCallbacksTracker::appendArgument(const char *Name,
|
|
const clang::MacroDirective *Value) {
|
|
if (!Value) {
|
|
appendArgument(Name, "(null)");
|
|
return;
|
|
}
|
|
appendArgument(Name, MacroDirectiveKindStrings[Value->getKind()]);
|
|
}
|
|
|
|
// Append a MacroDefinition argument to the top trace item.
|
|
void PPCallbacksTracker::appendArgument(const char *Name,
|
|
const clang::MacroDefinition &Value) {
|
|
std::string Str;
|
|
llvm::raw_string_ostream SS(Str);
|
|
SS << "[";
|
|
bool Any = false;
|
|
if (Value.getLocalDirective()) {
|
|
SS << "(local)";
|
|
Any = true;
|
|
}
|
|
for (auto *MM : Value.getModuleMacros()) {
|
|
if (Any) SS << ", ";
|
|
SS << MM->getOwningModule()->getFullModuleName();
|
|
}
|
|
SS << "]";
|
|
appendArgument(Name, SS.str());
|
|
}
|
|
|
|
// Append a MacroArgs argument to the top trace item.
|
|
void PPCallbacksTracker::appendArgument(const char *Name,
|
|
const clang::MacroArgs *Value) {
|
|
if (!Value) {
|
|
appendArgument(Name, "(null)");
|
|
return;
|
|
}
|
|
std::string Str;
|
|
llvm::raw_string_ostream SS(Str);
|
|
SS << "[";
|
|
// The argument tokens might include end tokens, so we reflect how
|
|
// how getUnexpArgument provides the arguments.
|
|
for (int I = 0, E = Value->getNumArguments(); I < E; ++I) {
|
|
const clang::Token *Current = Value->getUnexpArgument(I);
|
|
int TokenCount = Value->getArgLength(Current) + 1; // include EOF
|
|
E -= TokenCount;
|
|
if (I)
|
|
SS << ", ";
|
|
// We're assuming tokens are contiguous, as otherwise we have no
|
|
// other way to get at them.
|
|
--TokenCount;
|
|
for (int TokenIndex = 0; TokenIndex < TokenCount; ++TokenIndex, ++Current) {
|
|
if (TokenIndex)
|
|
SS << " ";
|
|
// We need to be careful here because the arguments might not be legal in
|
|
// YAML, so we use the token name for anything but identifiers and
|
|
// numeric literals.
|
|
if (Current->isAnyIdentifier() ||
|
|
Current->is(clang::tok::numeric_constant)) {
|
|
SS << PP.getSpelling(*Current);
|
|
} else {
|
|
SS << "<" << Current->getName() << ">";
|
|
}
|
|
}
|
|
}
|
|
SS << "]";
|
|
appendArgument(Name, SS.str());
|
|
}
|
|
|
|
// Append a Module argument to the top trace item.
|
|
void PPCallbacksTracker::appendArgument(const char *Name,
|
|
const clang::Module *Value) {
|
|
if (!Value) {
|
|
appendArgument(Name, "(null)");
|
|
return;
|
|
}
|
|
appendArgument(Name, Value->Name.c_str());
|
|
}
|
|
|
|
// Append a double-quoted argument to the top trace item.
|
|
void PPCallbacksTracker::appendQuotedArgument(const char *Name,
|
|
const std::string &Value) {
|
|
std::string Str;
|
|
llvm::raw_string_ostream SS(Str);
|
|
SS << "\"" << Value << "\"";
|
|
appendArgument(Name, SS.str());
|
|
}
|
|
|
|
// Append a double-quoted file path argument to the top trace item.
|
|
void PPCallbacksTracker::appendFilePathArgument(const char *Name,
|
|
llvm::StringRef Value) {
|
|
std::string Path(Value);
|
|
// YAML treats backslash as escape, so use forward slashes.
|
|
std::replace(Path.begin(), Path.end(), '\\', '/');
|
|
appendQuotedArgument(Name, Path);
|
|
}
|
|
|
|
// Get the raw source string of the range.
|
|
llvm::StringRef
|
|
PPCallbacksTracker::getSourceString(clang::CharSourceRange Range) {
|
|
const char *B = PP.getSourceManager().getCharacterData(Range.getBegin());
|
|
const char *E = PP.getSourceManager().getCharacterData(Range.getEnd());
|
|
return llvm::StringRef(B, E - B);
|
|
}
|