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-rw-r--r--lib/AST/ASTDiagnostic.cpp74
-rw-r--r--lib/Basic/Diagnostic.cpp14
2 files changed, 66 insertions, 22 deletions
diff --git a/lib/AST/ASTDiagnostic.cpp b/lib/AST/ASTDiagnostic.cpp
index 16d2f85360..7c91b5cb7a 100644
--- a/lib/AST/ASTDiagnostic.cpp
+++ b/lib/AST/ASTDiagnostic.cpp
@@ -129,7 +129,7 @@ break; \
/// \brief Convert the given type to a string suitable for printing as part of
/// a diagnostic.
///
-/// There are three main criteria when determining whether we should have an
+/// There are four main criteria when determining whether we should have an
/// a.k.a. clause when pretty-printing a type:
///
/// 1) Some types provide very minimal sugar that doesn't impede the
@@ -142,15 +142,44 @@ break; \
/// want to desugar these, even if we do produce an a.k.a. clause.
/// 3) Some types may have already been desugared previously in this diagnostic.
/// if this is the case, doing another "aka" would just be clutter.
+/// 4) Two different types within the same diagnostic have the same output
+/// string. In this case, force an a.k.a with the desugared type when
+/// doing so will provide additional information.
///
/// \param Context the context in which the type was allocated
/// \param Ty the type to print
+/// \param QualTypeVals pointer values to QualTypes which are used in the
+/// diagnostic message
static std::string
ConvertTypeToDiagnosticString(ASTContext &Context, QualType Ty,
const Diagnostic::ArgumentValue *PrevArgs,
- unsigned NumPrevArgs) {
+ unsigned NumPrevArgs,
+ llvm::SmallVectorImpl<intptr_t> &QualTypeVals) {
// FIXME: Playing with std::string is really slow.
+ bool ForceAKA = false;
+ QualType CanTy = Ty.getCanonicalType();
std::string S = Ty.getAsString(Context.PrintingPolicy);
+ std::string CanS = CanTy.getAsString(Context.PrintingPolicy);
+
+ for (llvm::SmallVectorImpl<intptr_t>::iterator I = QualTypeVals.begin(),
+ E = QualTypeVals.end(); I != E; ++I) {
+ QualType CompareTy =
+ QualType::getFromOpaquePtr(reinterpret_cast<void*>(*I));
+ if (CompareTy == Ty)
+ continue; // Same types
+ QualType CompareCanTy = CompareTy.getCanonicalType();
+ if (CompareCanTy == CanTy)
+ continue; // Same canonical types
+ std::string CompareS = CompareTy.getAsString(Context.PrintingPolicy);
+ if (CompareS != S)
+ continue; // Original strings are different
+ std::string CompareCanS = CompareCanTy.getAsString(Context.PrintingPolicy);
+ if (CompareCanS == CanS)
+ continue; // No new info from canonical type
+
+ ForceAKA = true;
+ break;
+ }
// Check to see if we already desugared this type in this
// diagnostic. If so, don't do it again.
@@ -172,11 +201,15 @@ ConvertTypeToDiagnosticString(ASTContext &Context, QualType Ty,
if (!Repeated) {
bool ShouldAKA = false;
QualType DesugaredTy = Desugar(Context, Ty, ShouldAKA);
- if (ShouldAKA) {
- S = "'" + S + "' (aka '";
- S += DesugaredTy.getAsString(Context.PrintingPolicy);
- S += "')";
- return S;
+ if (ShouldAKA || ForceAKA) {
+ if (DesugaredTy == Ty) {
+ DesugaredTy = Ty.getCanonicalType();
+ }
+ std::string akaStr = DesugaredTy.getAsString(Context.PrintingPolicy);
+ if (akaStr != S) {
+ S = "'" + S + "' (aka '" + akaStr + "')";
+ return S;
+ }
}
}
@@ -184,16 +217,18 @@ ConvertTypeToDiagnosticString(ASTContext &Context, QualType Ty,
return S;
}
-void clang::FormatASTNodeDiagnosticArgument(Diagnostic::ArgumentKind Kind,
- intptr_t Val,
- const char *Modifier,
- unsigned ModLen,
- const char *Argument,
- unsigned ArgLen,
- const Diagnostic::ArgumentValue *PrevArgs,
- unsigned NumPrevArgs,
- llvm::SmallVectorImpl<char> &Output,
- void *Cookie) {
+void clang::FormatASTNodeDiagnosticArgument(
+ Diagnostic::ArgumentKind Kind,
+ intptr_t Val,
+ const char *Modifier,
+ unsigned ModLen,
+ const char *Argument,
+ unsigned ArgLen,
+ const Diagnostic::ArgumentValue *PrevArgs,
+ unsigned NumPrevArgs,
+ llvm::SmallVectorImpl<char> &Output,
+ void *Cookie,
+ llvm::SmallVectorImpl<intptr_t> &QualTypeVals) {
ASTContext &Context = *static_cast<ASTContext*>(Cookie);
std::string S;
@@ -206,7 +241,8 @@ void clang::FormatASTNodeDiagnosticArgument(Diagnostic::ArgumentKind Kind,
"Invalid modifier for QualType argument");
QualType Ty(QualType::getFromOpaquePtr(reinterpret_cast<void*>(Val)));
- S = ConvertTypeToDiagnosticString(Context, Ty, PrevArgs, NumPrevArgs);
+ S = ConvertTypeToDiagnosticString(Context, Ty, PrevArgs, NumPrevArgs,
+ QualTypeVals);
NeedQuotes = false;
break;
}
@@ -257,7 +293,7 @@ void clang::FormatASTNodeDiagnosticArgument(Diagnostic::ArgumentKind Kind,
} else if (TypeDecl *Type = dyn_cast<TypeDecl>(DC)) {
S = ConvertTypeToDiagnosticString(Context,
Context.getTypeDeclType(Type),
- PrevArgs, NumPrevArgs);
+ PrevArgs, NumPrevArgs, QualTypeVals);
} else {
// FIXME: Get these strings from some localized place
NamedDecl *ND = cast<NamedDecl>(DC);
diff --git a/lib/Basic/Diagnostic.cpp b/lib/Basic/Diagnostic.cpp
index e0ef53d00d..ae363a0df0 100644
--- a/lib/Basic/Diagnostic.cpp
+++ b/lib/Basic/Diagnostic.cpp
@@ -26,7 +26,8 @@ static void DummyArgToStringFn(Diagnostic::ArgumentKind AK, intptr_t QT,
const Diagnostic::ArgumentValue *PrevArgs,
unsigned NumPrevArgs,
llvm::SmallVectorImpl<char> &Output,
- void *Cookie) {
+ void *Cookie,
+ llvm::SmallVectorImpl<intptr_t> &QualTypeVals) {
const char *Str = "<can't format argument>";
Output.append(Str, Str+strlen(Str));
}
@@ -544,7 +545,14 @@ FormatDiagnostic(const char *DiagStr, const char *DiagEnd,
/// ConvertArgToString, allowing the implementation to avoid redundancies in
/// obvious cases.
llvm::SmallVector<Diagnostic::ArgumentValue, 8> FormattedArgs;
-
+
+ /// QualTypeVals - Pass a vector of arrays so that QualType names can be
+ /// compared to see if more information is needed to be printed.
+ llvm::SmallVector<intptr_t, 2> QualTypeVals;
+ for (unsigned i = 0, e = getNumArgs(); i < e; ++i)
+ if (getArgKind(i) == Diagnostic::ak_qualtype)
+ QualTypeVals.push_back(getRawArg(i));
+
while (DiagStr != DiagEnd) {
if (DiagStr[0] != '%') {
// Append non-%0 substrings to Str if we have one.
@@ -675,7 +683,7 @@ FormatDiagnostic(const char *DiagStr, const char *DiagEnd,
Modifier, ModifierLen,
Argument, ArgumentLen,
FormattedArgs.data(), FormattedArgs.size(),
- OutStr);
+ OutStr, QualTypeVals);
break;
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-07-24 21:38:18 +0000