511 lines
20 KiB
C++
511 lines
20 KiB
C++
|
//===--- DiagnosticRenderer.cpp - Diagnostic Pretty-Printing --------------===//
|
||
|
|
//
|
||
|
|
// The LLVM Compiler Infrastructure
|
||
|
|
//
|
||
|
|
// This file is distributed under the University of Illinois Open Source
|
||
|
|
// License. See LICENSE.TXT for details.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
#include "clang/Frontend/DiagnosticRenderer.h"
|
||
|
|
#include "clang/Basic/DiagnosticOptions.h"
|
||
|
|
#include "clang/Basic/FileManager.h"
|
||
|
|
#include "clang/Basic/SourceManager.h"
|
||
|
|
#include "clang/Edit/Commit.h"
|
||
|
|
#include "clang/Edit/EditedSource.h"
|
||
|
|
#include "clang/Edit/EditsReceiver.h"
|
||
|
|
#include "clang/Lex/Lexer.h"
|
||
|
|
#include "llvm/ADT/SmallSet.h"
|
||
|
|
#include "llvm/ADT/SmallString.h"
|
||
|
|
#include "llvm/Support/ErrorHandling.h"
|
||
|
|
#include "llvm/Support/MemoryBuffer.h"
|
||
|
|
#include "llvm/Support/raw_ostream.h"
|
||
|
|
#include <algorithm>
|
||
|
|
using namespace clang;
|
||
|
|
|
||
|
|
/// \brief Retrieve the name of the immediate macro expansion.
|
||
|
|
///
|
||
|
|
/// This routine starts from a source location, and finds the name of the macro
|
||
|
|
/// responsible for its immediate expansion. It looks through any intervening
|
||
|
|
/// macro argument expansions to compute this. It returns a StringRef which
|
||
|
|
/// refers to the SourceManager-owned buffer of the source where that macro
|
||
|
|
/// name is spelled. Thus, the result shouldn't out-live that SourceManager.
|
||
|
|
///
|
||
|
|
/// This differs from Lexer::getImmediateMacroName in that any macro argument
|
||
|
|
/// location will result in the topmost function macro that accepted it.
|
||
|
|
/// e.g.
|
||
|
|
/// \code
|
||
|
|
/// MAC1( MAC2(foo) )
|
||
|
|
/// \endcode
|
||
|
|
/// for location of 'foo' token, this function will return "MAC1" while
|
||
|
|
/// Lexer::getImmediateMacroName will return "MAC2".
|
||
|
|
static StringRef getImmediateMacroName(SourceLocation Loc,
|
||
|
|
const SourceManager &SM,
|
||
|
|
const LangOptions &LangOpts) {
|
||
|
|
assert(Loc.isMacroID() && "Only reasonble to call this on macros");
|
||
|
|
// Walk past macro argument expanions.
|
||
|
|
while (SM.isMacroArgExpansion(Loc))
|
||
|
|
Loc = SM.getImmediateExpansionRange(Loc).first;
|
||
|
|
|
||
|
|
// If the macro's spelling has no FileID, then it's actually a token paste
|
||
|
|
// or stringization (or similar) and not a macro at all.
|
||
|
|
if (!SM.getFileEntryForID(SM.getFileID(SM.getSpellingLoc(Loc))))
|
||
|
|
return StringRef();
|
||
|
|
|
||
|
|
// Find the spelling location of the start of the non-argument expansion
|
||
|
|
// range. This is where the macro name was spelled in order to begin
|
||
|
|
// expanding this macro.
|
||
|
|
Loc = SM.getSpellingLoc(SM.getImmediateExpansionRange(Loc).first);
|
||
|
|
|
||
|
|
// Dig out the buffer where the macro name was spelled and the extents of the
|
||
|
|
// name so that we can render it into the expansion note.
|
||
|
|
std::pair<FileID, unsigned> ExpansionInfo = SM.getDecomposedLoc(Loc);
|
||
|
|
unsigned MacroTokenLength = Lexer::MeasureTokenLength(Loc, SM, LangOpts);
|
||
|
|
StringRef ExpansionBuffer = SM.getBufferData(ExpansionInfo.first);
|
||
|
|
return ExpansionBuffer.substr(ExpansionInfo.second, MacroTokenLength);
|
||
|
|
}
|
||
|
|
|
||
|
|
DiagnosticRenderer::DiagnosticRenderer(const LangOptions &LangOpts,
|
||
|
|
DiagnosticOptions *DiagOpts)
|
||
|
|
: LangOpts(LangOpts), DiagOpts(DiagOpts), LastLevel() {}
|
||
|
|
|
||
|
|
DiagnosticRenderer::~DiagnosticRenderer() {}
|
||
|
|
|
||
|
|
namespace {
|
||
|
|
|
||
|
|
class FixitReceiver : public edit::EditsReceiver {
|
||
|
|
SmallVectorImpl<FixItHint> &MergedFixits;
|
||
|
|
|
||
|
|
public:
|
||
|
|
FixitReceiver(SmallVectorImpl<FixItHint> &MergedFixits)
|
||
|
|
: MergedFixits(MergedFixits) { }
|
||
|
|
virtual void insert(SourceLocation loc, StringRef text) {
|
||
|
|
MergedFixits.push_back(FixItHint::CreateInsertion(loc, text));
|
||
|
|
}
|
||
|
|
virtual void replace(CharSourceRange range, StringRef text) {
|
||
|
|
MergedFixits.push_back(FixItHint::CreateReplacement(range, text));
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
static void mergeFixits(ArrayRef<FixItHint> FixItHints,
|
||
|
|
const SourceManager &SM, const LangOptions &LangOpts,
|
||
|
|
SmallVectorImpl<FixItHint> &MergedFixits) {
|
||
|
|
edit::Commit commit(SM, LangOpts);
|
||
|
|
for (ArrayRef<FixItHint>::const_iterator
|
||
|
|
I = FixItHints.begin(), E = FixItHints.end(); I != E; ++I) {
|
||
|
|
const FixItHint &Hint = *I;
|
||
|
|
if (Hint.CodeToInsert.empty()) {
|
||
|
|
if (Hint.InsertFromRange.isValid())
|
||
|
|
commit.insertFromRange(Hint.RemoveRange.getBegin(),
|
||
|
|
Hint.InsertFromRange, /*afterToken=*/false,
|
||
|
|
Hint.BeforePreviousInsertions);
|
||
|
|
else
|
||
|
|
commit.remove(Hint.RemoveRange);
|
||
|
|
} else {
|
||
|
|
if (Hint.RemoveRange.isTokenRange() ||
|
||
|
|
Hint.RemoveRange.getBegin() != Hint.RemoveRange.getEnd())
|
||
|
|
commit.replace(Hint.RemoveRange, Hint.CodeToInsert);
|
||
|
|
else
|
||
|
|
commit.insert(Hint.RemoveRange.getBegin(), Hint.CodeToInsert,
|
||
|
|
/*afterToken=*/false, Hint.BeforePreviousInsertions);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
edit::EditedSource Editor(SM, LangOpts);
|
||
|
|
if (Editor.commit(commit)) {
|
||
|
|
FixitReceiver Rec(MergedFixits);
|
||
|
|
Editor.applyRewrites(Rec);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void DiagnosticRenderer::emitDiagnostic(SourceLocation Loc,
|
||
|
|
DiagnosticsEngine::Level Level,
|
||
|
|
StringRef Message,
|
||
|
|
ArrayRef<CharSourceRange> Ranges,
|
||
|
|
ArrayRef<FixItHint> FixItHints,
|
||
|
|
const SourceManager *SM,
|
||
|
|
DiagOrStoredDiag D) {
|
||
|
|
assert(SM || Loc.isInvalid());
|
||
|
|
|
||
|
|
beginDiagnostic(D, Level);
|
||
|
|
|
||
|
|
if (!Loc.isValid())
|
||
|
|
// If we have no source location, just emit the diagnostic message.
|
||
|
|
emitDiagnosticMessage(Loc, PresumedLoc(), Level, Message, Ranges, SM, D);
|
||
|
|
else {
|
||
|
|
// Get the ranges into a local array we can hack on.
|
||
|
|
SmallVector<CharSourceRange, 20> MutableRanges(Ranges.begin(),
|
||
|
|
Ranges.end());
|
||
|
|
|
||
|
|
SmallVector<FixItHint, 8> MergedFixits;
|
||
|
|
if (!FixItHints.empty()) {
|
||
|
|
mergeFixits(FixItHints, *SM, LangOpts, MergedFixits);
|
||
|
|
FixItHints = MergedFixits;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (ArrayRef<FixItHint>::const_iterator I = FixItHints.begin(),
|
||
|
|
E = FixItHints.end();
|
||
|
|
I != E; ++I)
|
||
|
|
if (I->RemoveRange.isValid())
|
||
|
|
MutableRanges.push_back(I->RemoveRange);
|
||
|
|
|
||
|
|
SourceLocation UnexpandedLoc = Loc;
|
||
|
|
|
||
|
|
// Find the ultimate expansion location for the diagnostic.
|
||
|
|
Loc = SM->getFileLoc(Loc);
|
||
|
|
|
||
|
|
PresumedLoc PLoc = SM->getPresumedLoc(Loc, DiagOpts->ShowPresumedLoc);
|
||
|
|
|
||
|
|
// First, if this diagnostic is not in the main file, print out the
|
||
|
|
// "included from" lines.
|
||
|
|
emitIncludeStack(Loc, PLoc, Level, *SM);
|
||
|
|
|
||
|
|
// Next, emit the actual diagnostic message and caret.
|
||
|
|
emitDiagnosticMessage(Loc, PLoc, Level, Message, Ranges, SM, D);
|
||
|
|
emitCaret(Loc, Level, MutableRanges, FixItHints, *SM);
|
||
|
|
|
||
|
|
// If this location is within a macro, walk from UnexpandedLoc up to Loc
|
||
|
|
// and produce a macro backtrace.
|
||
|
|
if (UnexpandedLoc.isValid() && UnexpandedLoc.isMacroID()) {
|
||
|
|
unsigned MacroDepth = 0;
|
||
|
|
emitMacroExpansions(UnexpandedLoc, Level, MutableRanges, FixItHints, *SM,
|
||
|
|
MacroDepth);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
LastLoc = Loc;
|
||
|
|
LastLevel = Level;
|
||
|
|
|
||
|
|
endDiagnostic(D, Level);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void DiagnosticRenderer::emitStoredDiagnostic(StoredDiagnostic &Diag) {
|
||
|
|
emitDiagnostic(Diag.getLocation(), Diag.getLevel(), Diag.getMessage(),
|
||
|
|
Diag.getRanges(), Diag.getFixIts(),
|
||
|
|
Diag.getLocation().isValid() ? &Diag.getLocation().getManager()
|
||
|
|
: 0,
|
||
|
|
&Diag);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// \brief Prints an include stack when appropriate for a particular
|
||
|
|
/// diagnostic level and location.
|
||
|
|
///
|
||
|
|
/// This routine handles all the logic of suppressing particular include
|
||
|
|
/// stacks (such as those for notes) and duplicate include stacks when
|
||
|
|
/// repeated warnings occur within the same file. It also handles the logic
|
||
|
|
/// of customizing the formatting and display of the include stack.
|
||
|
|
///
|
||
|
|
/// \param Loc The diagnostic location.
|
||
|
|
/// \param PLoc The presumed location of the diagnostic location.
|
||
|
|
/// \param Level The diagnostic level of the message this stack pertains to.
|
||
|
|
void DiagnosticRenderer::emitIncludeStack(SourceLocation Loc,
|
||
|
|
PresumedLoc PLoc,
|
||
|
|
DiagnosticsEngine::Level Level,
|
||
|
|
const SourceManager &SM) {
|
||
|
|
SourceLocation IncludeLoc = PLoc.getIncludeLoc();
|
||
|
|
|
||
|
|
// Skip redundant include stacks altogether.
|
||
|
|
if (LastIncludeLoc == IncludeLoc)
|
||
|
|
return;
|
||
|
|
|
||
|
|
LastIncludeLoc = IncludeLoc;
|
||
|
|
|
||
|
|
if (!DiagOpts->ShowNoteIncludeStack && Level == DiagnosticsEngine::Note)
|
||
|
|
return;
|
||
|
|
|
||
|
|
if (IncludeLoc.isValid())
|
||
|
|
emitIncludeStackRecursively(IncludeLoc, SM);
|
||
|
|
else {
|
||
|
|
emitModuleBuildStack(SM);
|
||
|
|
emitImportStack(Loc, SM);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/// \brief Helper to recursivly walk up the include stack and print each layer
|
||
|
|
/// on the way back down.
|
||
|
|
void DiagnosticRenderer::emitIncludeStackRecursively(SourceLocation Loc,
|
||
|
|
const SourceManager &SM) {
|
||
|
|
if (Loc.isInvalid()) {
|
||
|
|
emitModuleBuildStack(SM);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
PresumedLoc PLoc = SM.getPresumedLoc(Loc, DiagOpts->ShowPresumedLoc);
|
||
|
|
if (PLoc.isInvalid())
|
||
|
|
return;
|
||
|
|
|
||
|
|
// If this source location was imported from a module, print the module
|
||
|
|
// import stack rather than the
|
||
|
|
// FIXME: We want submodule granularity here.
|
||
|
|
std::pair<SourceLocation, StringRef> Imported = SM.getModuleImportLoc(Loc);
|
||
|
|
if (Imported.first.isValid()) {
|
||
|
|
// This location was imported by a module. Emit the module import stack.
|
||
|
|
emitImportStackRecursively(Imported.first, Imported.second, SM);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Emit the other include frames first.
|
||
|
|
emitIncludeStackRecursively(PLoc.getIncludeLoc(), SM);
|
||
|
|
|
||
|
|
// Emit the inclusion text/note.
|
||
|
|
emitIncludeLocation(Loc, PLoc, SM);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// \brief Emit the module import stack associated with the current location.
|
||
|
|
void DiagnosticRenderer::emitImportStack(SourceLocation Loc,
|
||
|
|
const SourceManager &SM) {
|
||
|
|
if (Loc.isInvalid()) {
|
||
|
|
emitModuleBuildStack(SM);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
std::pair<SourceLocation, StringRef> NextImportLoc
|
||
|
|
= SM.getModuleImportLoc(Loc);
|
||
|
|
emitImportStackRecursively(NextImportLoc.first, NextImportLoc.second, SM);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// \brief Helper to recursivly walk up the import stack and print each layer
|
||
|
|
/// on the way back down.
|
||
|
|
void DiagnosticRenderer::emitImportStackRecursively(SourceLocation Loc,
|
||
|
|
StringRef ModuleName,
|
||
|
|
const SourceManager &SM) {
|
||
|
|
if (Loc.isInvalid()) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
PresumedLoc PLoc = SM.getPresumedLoc(Loc, DiagOpts->ShowPresumedLoc);
|
||
|
|
if (PLoc.isInvalid())
|
||
|
|
return;
|
||
|
|
|
||
|
|
// Emit the other import frames first.
|
||
|
|
std::pair<SourceLocation, StringRef> NextImportLoc
|
||
|
|
= SM.getModuleImportLoc(Loc);
|
||
|
|
emitImportStackRecursively(NextImportLoc.first, NextImportLoc.second, SM);
|
||
|
|
|
||
|
|
// Emit the inclusion text/note.
|
||
|
|
emitImportLocation(Loc, PLoc, ModuleName, SM);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// \brief Emit the module build stack, for cases where a module is (re-)built
|
||
|
|
/// on demand.
|
||
|
|
void DiagnosticRenderer::emitModuleBuildStack(const SourceManager &SM) {
|
||
|
|
ModuleBuildStack Stack = SM.getModuleBuildStack();
|
||
|
|
for (unsigned I = 0, N = Stack.size(); I != N; ++I) {
|
||
|
|
const SourceManager &CurSM = Stack[I].second.getManager();
|
||
|
|
SourceLocation CurLoc = Stack[I].second;
|
||
|
|
emitBuildingModuleLocation(CurLoc,
|
||
|
|
CurSM.getPresumedLoc(CurLoc,
|
||
|
|
DiagOpts->ShowPresumedLoc),
|
||
|
|
Stack[I].first,
|
||
|
|
CurSM);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Helper function to fix up source ranges. It takes in an array of ranges,
|
||
|
|
// and outputs an array of ranges where we want to draw the range highlighting
|
||
|
|
// around the location specified by CaretLoc.
|
||
|
|
//
|
||
|
|
// To find locations which correspond to the caret, we crawl the macro caller
|
||
|
|
// chain for the beginning and end of each range. If the caret location
|
||
|
|
// is in a macro expansion, we search each chain for a location
|
||
|
|
// in the same expansion as the caret; otherwise, we crawl to the top of
|
||
|
|
// each chain. Two locations are part of the same macro expansion
|
||
|
|
// iff the FileID is the same.
|
||
|
|
static void mapDiagnosticRanges(
|
||
|
|
SourceLocation CaretLoc,
|
||
|
|
ArrayRef<CharSourceRange> Ranges,
|
||
|
|
SmallVectorImpl<CharSourceRange> &SpellingRanges,
|
||
|
|
const SourceManager *SM) {
|
||
|
|
FileID CaretLocFileID = SM->getFileID(CaretLoc);
|
||
|
|
|
||
|
|
for (ArrayRef<CharSourceRange>::const_iterator I = Ranges.begin(),
|
||
|
|
E = Ranges.end();
|
||
|
|
I != E; ++I) {
|
||
|
|
SourceLocation Begin = I->getBegin(), End = I->getEnd();
|
||
|
|
bool IsTokenRange = I->isTokenRange();
|
||
|
|
|
||
|
|
FileID BeginFileID = SM->getFileID(Begin);
|
||
|
|
FileID EndFileID = SM->getFileID(End);
|
||
|
|
|
||
|
|
// Find the common parent for the beginning and end of the range.
|
||
|
|
|
||
|
|
// First, crawl the expansion chain for the beginning of the range.
|
||
|
|
llvm::SmallDenseMap<FileID, SourceLocation> BeginLocsMap;
|
||
|
|
while (Begin.isMacroID() && BeginFileID != EndFileID) {
|
||
|
|
BeginLocsMap[BeginFileID] = Begin;
|
||
|
|
Begin = SM->getImmediateExpansionRange(Begin).first;
|
||
|
|
BeginFileID = SM->getFileID(Begin);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Then, crawl the expansion chain for the end of the range.
|
||
|
|
if (BeginFileID != EndFileID) {
|
||
|
|
while (End.isMacroID() && !BeginLocsMap.count(EndFileID)) {
|
||
|
|
End = SM->getImmediateExpansionRange(End).second;
|
||
|
|
EndFileID = SM->getFileID(End);
|
||
|
|
}
|
||
|
|
if (End.isMacroID()) {
|
||
|
|
Begin = BeginLocsMap[EndFileID];
|
||
|
|
BeginFileID = EndFileID;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
while (Begin.isMacroID() && BeginFileID != CaretLocFileID) {
|
||
|
|
if (SM->isMacroArgExpansion(Begin)) {
|
||
|
|
Begin = SM->getImmediateSpellingLoc(Begin);
|
||
|
|
End = SM->getImmediateSpellingLoc(End);
|
||
|
|
} else {
|
||
|
|
Begin = SM->getImmediateExpansionRange(Begin).first;
|
||
|
|
End = SM->getImmediateExpansionRange(End).second;
|
||
|
|
}
|
||
|
|
BeginFileID = SM->getFileID(Begin);
|
||
|
|
if (BeginFileID != SM->getFileID(End)) {
|
||
|
|
// FIXME: Ugly hack to stop a crash; this code is making bad
|
||
|
|
// assumptions and it's too complicated for me to reason
|
||
|
|
// about.
|
||
|
|
Begin = End = SourceLocation();
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Return the spelling location of the beginning and end of the range.
|
||
|
|
Begin = SM->getSpellingLoc(Begin);
|
||
|
|
End = SM->getSpellingLoc(End);
|
||
|
|
SpellingRanges.push_back(CharSourceRange(SourceRange(Begin, End),
|
||
|
|
IsTokenRange));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void DiagnosticRenderer::emitCaret(SourceLocation Loc,
|
||
|
|
DiagnosticsEngine::Level Level,
|
||
|
|
ArrayRef<CharSourceRange> Ranges,
|
||
|
|
ArrayRef<FixItHint> Hints,
|
||
|
|
const SourceManager &SM) {
|
||
|
|
SmallVector<CharSourceRange, 4> SpellingRanges;
|
||
|
|
mapDiagnosticRanges(Loc, Ranges, SpellingRanges, &SM);
|
||
|
|
emitCodeContext(Loc, Level, SpellingRanges, Hints, SM);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// \brief Recursively emit notes for each macro expansion and caret
|
||
|
|
/// diagnostics where appropriate.
|
||
|
|
///
|
||
|
|
/// Walks up the macro expansion stack printing expansion notes, the code
|
||
|
|
/// snippet, caret, underlines and FixItHint display as appropriate at each
|
||
|
|
/// level.
|
||
|
|
///
|
||
|
|
/// \param Loc The location for this caret.
|
||
|
|
/// \param Level The diagnostic level currently being emitted.
|
||
|
|
/// \param Ranges The underlined ranges for this code snippet.
|
||
|
|
/// \param Hints The FixIt hints active for this diagnostic.
|
||
|
|
/// \param OnMacroInst The current depth of the macro expansion stack.
|
||
|
|
void DiagnosticRenderer::emitMacroExpansions(SourceLocation Loc,
|
||
|
|
DiagnosticsEngine::Level Level,
|
||
|
|
ArrayRef<CharSourceRange> Ranges,
|
||
|
|
ArrayRef<FixItHint> Hints,
|
||
|
|
const SourceManager &SM,
|
||
|
|
unsigned &MacroDepth,
|
||
|
|
unsigned OnMacroInst) {
|
||
|
|
assert(!Loc.isInvalid() && "must have a valid source location here");
|
||
|
|
|
||
|
|
// Walk up to the caller of this macro, and produce a backtrace down to there.
|
||
|
|
SourceLocation OneLevelUp = SM.getImmediateMacroCallerLoc(Loc);
|
||
|
|
if (OneLevelUp.isMacroID())
|
||
|
|
emitMacroExpansions(OneLevelUp, Level, Ranges, Hints, SM,
|
||
|
|
MacroDepth, OnMacroInst + 1);
|
||
|
|
else
|
||
|
|
MacroDepth = OnMacroInst + 1;
|
||
|
|
|
||
|
|
unsigned MacroSkipStart = 0, MacroSkipEnd = 0;
|
||
|
|
if (MacroDepth > DiagOpts->MacroBacktraceLimit &&
|
||
|
|
DiagOpts->MacroBacktraceLimit != 0) {
|
||
|
|
MacroSkipStart = DiagOpts->MacroBacktraceLimit / 2 +
|
||
|
|
DiagOpts->MacroBacktraceLimit % 2;
|
||
|
|
MacroSkipEnd = MacroDepth - DiagOpts->MacroBacktraceLimit / 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Whether to suppress printing this macro expansion.
|
||
|
|
bool Suppressed = (OnMacroInst >= MacroSkipStart &&
|
||
|
|
OnMacroInst < MacroSkipEnd);
|
||
|
|
|
||
|
|
if (Suppressed) {
|
||
|
|
// Tell the user that we've skipped contexts.
|
||
|
|
if (OnMacroInst == MacroSkipStart) {
|
||
|
|
SmallString<200> MessageStorage;
|
||
|
|
llvm::raw_svector_ostream Message(MessageStorage);
|
||
|
|
Message << "(skipping " << (MacroSkipEnd - MacroSkipStart)
|
||
|
|
<< " expansions in backtrace; use -fmacro-backtrace-limit=0 to "
|
||
|
|
"see all)";
|
||
|
|
emitBasicNote(Message.str());
|
||
|
|
}
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Find the spelling location for the macro definition. We must use the
|
||
|
|
// spelling location here to avoid emitting a macro bactrace for the note.
|
||
|
|
SourceLocation SpellingLoc = Loc;
|
||
|
|
// If this is the expansion of a macro argument, point the caret at the
|
||
|
|
// use of the argument in the definition of the macro, not the expansion.
|
||
|
|
if (SM.isMacroArgExpansion(Loc))
|
||
|
|
SpellingLoc = SM.getImmediateExpansionRange(Loc).first;
|
||
|
|
SpellingLoc = SM.getSpellingLoc(SpellingLoc);
|
||
|
|
|
||
|
|
// Map the ranges into the FileID of the diagnostic location.
|
||
|
|
SmallVector<CharSourceRange, 4> SpellingRanges;
|
||
|
|
mapDiagnosticRanges(Loc, Ranges, SpellingRanges, &SM);
|
||
|
|
|
||
|
|
SmallString<100> MessageStorage;
|
||
|
|
llvm::raw_svector_ostream Message(MessageStorage);
|
||
|
|
StringRef MacroName = getImmediateMacroName(Loc, SM, LangOpts);
|
||
|
|
if (MacroName.empty())
|
||
|
|
Message << "expanded from here";
|
||
|
|
else
|
||
|
|
Message << "expanded from macro '" << MacroName << "'";
|
||
|
|
emitDiagnostic(SpellingLoc, DiagnosticsEngine::Note, Message.str(),
|
||
|
|
SpellingRanges, None, &SM);
|
||
|
|
}
|
||
|
|
|
||
|
|
DiagnosticNoteRenderer::~DiagnosticNoteRenderer() {}
|
||
|
|
|
||
|
|
void DiagnosticNoteRenderer::emitIncludeLocation(SourceLocation Loc,
|
||
|
|
PresumedLoc PLoc,
|
||
|
|
const SourceManager &SM) {
|
||
|
|
// Generate a note indicating the include location.
|
||
|
|
SmallString<200> MessageStorage;
|
||
|
|
llvm::raw_svector_ostream Message(MessageStorage);
|
||
|
|
Message << "in file included from " << PLoc.getFilename() << ':'
|
||
|
|
<< PLoc.getLine() << ":";
|
||
|
|
emitNote(Loc, Message.str(), &SM);
|
||
|
|
}
|
||
|
|
|
||
|
|
void DiagnosticNoteRenderer::emitImportLocation(SourceLocation Loc,
|
||
|
|
PresumedLoc PLoc,
|
||
|
|
StringRef ModuleName,
|
||
|
|
const SourceManager &SM) {
|
||
|
|
// Generate a note indicating the include location.
|
||
|
|
SmallString<200> MessageStorage;
|
||
|
|
llvm::raw_svector_ostream Message(MessageStorage);
|
||
|
|
Message << "in module '" << ModuleName << "' imported from "
|
||
|
|
<< PLoc.getFilename() << ':' << PLoc.getLine() << ":";
|
||
|
|
emitNote(Loc, Message.str(), &SM);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
DiagnosticNoteRenderer::emitBuildingModuleLocation(SourceLocation Loc,
|
||
|
|
PresumedLoc PLoc,
|
||
|
|
StringRef ModuleName,
|
||
|
|
const SourceManager &SM) {
|
||
|
|
// Generate a note indicating the include location.
|
||
|
|
SmallString<200> MessageStorage;
|
||
|
|
llvm::raw_svector_ostream Message(MessageStorage);
|
||
|
|
Message << "while building module '" << ModuleName << "' imported from "
|
||
|
|
<< PLoc.getFilename() << ':' << PLoc.getLine() << ":";
|
||
|
|
emitNote(Loc, Message.str(), &SM);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void DiagnosticNoteRenderer::emitBasicNote(StringRef Message) {
|
||
|
|
emitNote(SourceLocation(), Message, 0);
|
||
|
|
}
|