r298742 - [ODRHash] Add error messages for mismatched parameters in methods.
Richard Trieu via cfe-commits
cfe-commits at lists.llvm.org
Fri Mar 24 14:17:48 PDT 2017
Author: rtrieu
Date: Fri Mar 24 16:17:48 2017
New Revision: 298742
URL: http://llvm.org/viewvc/llvm-project?rev=298742&view=rev
Log:
[ODRHash] Add error messages for mismatched parameters in methods.
Modified:
cfe/trunk/include/clang/Basic/DiagnosticSerializationKinds.td
cfe/trunk/lib/AST/ODRHash.cpp
cfe/trunk/lib/Serialization/ASTReader.cpp
cfe/trunk/test/Modules/odr_hash.cpp
Modified: cfe/trunk/include/clang/Basic/DiagnosticSerializationKinds.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/DiagnosticSerializationKinds.td?rev=298742&r1=298741&r2=298742&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/DiagnosticSerializationKinds.td (original)
+++ cfe/trunk/include/clang/Basic/DiagnosticSerializationKinds.td Fri Mar 24 16:17:48 2017
@@ -146,7 +146,12 @@ def err_module_odr_violation_mismatch_de
"method %4 is %select{not static|static}5|"
"method %4 is %select{not volatile|volatile}5|"
"method %4 is %select{not const|const}5|"
- "method %4 is %select{not inline|inline}5}3">;
+ "method %4 is %select{not inline|inline}5|"
+ "method %4 that has %5 parameter%s5|"
+ "method %4 with %ordinal5 parameter of type %6|"
+ "method %4 with %ordinal5 parameter named %6|"
+ "method %4 with %ordinal5 parameter with %select{no |}6default argument|"
+ "method %4 with %ordinal5 parameter with default argument}3">;
def note_module_odr_violation_mismatch_decl_diff : Note<"but in '%0' found "
"%select{"
@@ -166,7 +171,12 @@ def note_module_odr_violation_mismatch_d
"method %2 is %select{not static|static}3|"
"method %2 is %select{not volatile|volatile}3|"
"method %2 is %select{not const|const}3|"
- "method %2 is %select{not inline|inline}3}1">;
+ "method %2 is %select{not inline|inline}3|"
+ "method %2 that has %3 parameter%s3|"
+ "method %2 with %ordinal3 parameter of type %4|"
+ "method %2 with %ordinal3 parameter named %4|"
+ "method %2 with %ordinal3 parameter with %select{no |}4default argument|"
+ "method %2 with %ordinal3 parameter with different default argument}1">;
def warn_module_uses_date_time : Warning<
"%select{precompiled header|module}0 uses __DATE__ or __TIME__">,
Modified: cfe/trunk/lib/AST/ODRHash.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/ODRHash.cpp?rev=298742&r1=298741&r2=298742&view=diff
==============================================================================
--- cfe/trunk/lib/AST/ODRHash.cpp (original)
+++ cfe/trunk/lib/AST/ODRHash.cpp Fri Mar 24 16:17:48 2017
@@ -169,6 +169,11 @@ public:
Inherited::VisitValueDecl(D);
}
+ void VisitParmVarDecl(const ParmVarDecl *D) {
+ AddStmt(D->getDefaultArg());
+ Inherited::VisitParmVarDecl(D);
+ }
+
void VisitAccessSpecDecl(const AccessSpecDecl *D) {
ID.AddInteger(D->getAccess());
Inherited::VisitAccessSpecDecl(D);
@@ -202,6 +207,12 @@ public:
Hash.AddBoolean(D->isPure());
Hash.AddBoolean(D->isDeletedAsWritten());
+ ID.AddInteger(D->param_size());
+
+ for (auto *Param : D->parameters()) {
+ Hash.AddSubDecl(Param);
+ }
+
Inherited::VisitFunctionDecl(D);
}
@@ -315,6 +326,10 @@ public:
}
}
+ void AddQualType(QualType T) {
+ Hash.AddQualType(T);
+ }
+
void Visit(const Type *T) {
ID.AddInteger(T->getTypeClass());
Inherited::Visit(T);
@@ -327,6 +342,50 @@ public:
VisitType(T);
}
+ void VisitFunctionType(const FunctionType *T) {
+ AddQualType(T->getReturnType());
+ T->getExtInfo().Profile(ID);
+ Hash.AddBoolean(T->isConst());
+ Hash.AddBoolean(T->isVolatile());
+ Hash.AddBoolean(T->isRestrict());
+ VisitType(T);
+ }
+
+ void VisitFunctionNoProtoType(const FunctionNoProtoType *T) {
+ VisitFunctionType(T);
+ }
+
+ void VisitFunctionProtoType(const FunctionProtoType *T) {
+ ID.AddInteger(T->getNumParams());
+ for (auto ParamType : T->getParamTypes())
+ AddQualType(ParamType);
+
+ const auto &epi = T->getExtProtoInfo();
+ ID.AddInteger(epi.Variadic);
+ ID.AddInteger(epi.TypeQuals);
+ ID.AddInteger(epi.RefQualifier);
+ ID.AddInteger(epi.ExceptionSpec.Type);
+
+ if (epi.ExceptionSpec.Type == EST_Dynamic) {
+ for (QualType Ex : epi.ExceptionSpec.Exceptions)
+ AddQualType(Ex);
+ } else if (epi.ExceptionSpec.Type == EST_ComputedNoexcept &&
+ epi.ExceptionSpec.NoexceptExpr) {
+ AddStmt(epi.ExceptionSpec.NoexceptExpr);
+ } else if (epi.ExceptionSpec.Type == EST_Uninstantiated ||
+ epi.ExceptionSpec.Type == EST_Unevaluated) {
+ AddDecl(epi.ExceptionSpec.SourceDecl->getCanonicalDecl());
+ }
+ if (epi.ExtParameterInfos) {
+ for (unsigned i = 0; i != T->getNumParams(); ++i)
+ ID.AddInteger(epi.ExtParameterInfos[i].getOpaqueValue());
+ }
+ epi.ExtInfo.Profile(ID);
+ Hash.AddBoolean(epi.HasTrailingReturn);
+
+ VisitFunctionType(T);
+ }
+
void VisitTypedefType(const TypedefType *T) {
AddDecl(T->getDecl());
Hash.AddQualType(T->getDecl()->getUnderlyingType());
Modified: cfe/trunk/lib/Serialization/ASTReader.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTReader.cpp?rev=298742&r1=298741&r2=298742&view=diff
==============================================================================
--- cfe/trunk/lib/Serialization/ASTReader.cpp (original)
+++ cfe/trunk/lib/Serialization/ASTReader.cpp Fri Mar 24 16:17:48 2017
@@ -9239,6 +9239,11 @@ void ASTReader::diagnoseOdrViolations()
MethodVolatile,
MethodConst,
MethodInline,
+ MethodNumberParameters,
+ MethodParameterType,
+ MethodParameterName,
+ MethodParameterSingleDefaultArgument,
+ MethodParameterDifferentDefaultArguments,
};
// These lambdas have the common portions of the ODR diagnostics. This
@@ -9562,6 +9567,84 @@ void ASTReader::diagnoseOdrViolations()
Diagnosed = true;
break;
}
+
+ const unsigned FirstNumParameters = FirstMethod->param_size();
+ const unsigned SecondNumParameters = SecondMethod->param_size();
+ if (FirstNumParameters != SecondNumParameters) {
+ ODRDiagError(FirstMethod->getLocation(),
+ FirstMethod->getSourceRange(), MethodNumberParameters)
+ << FirstName << FirstNumParameters;
+ ODRDiagNote(SecondMethod->getLocation(),
+ SecondMethod->getSourceRange(), MethodNumberParameters)
+ << SecondName << SecondNumParameters;
+ Diagnosed = true;
+ break;
+ }
+
+ // Need this status boolean to know when break out of the switch.
+ bool ParameterMismatch = false;
+ for (unsigned I = 0; I < FirstNumParameters; ++I) {
+ const ParmVarDecl *FirstParam = FirstMethod->getParamDecl(I);
+ const ParmVarDecl *SecondParam = SecondMethod->getParamDecl(I);
+ if (FirstParam->getType() != SecondParam->getType()) {
+ ODRDiagError(FirstMethod->getLocation(),
+ FirstMethod->getSourceRange(), MethodParameterType)
+ << FirstName << (I + 1) << FirstParam->getType();
+ ODRDiagNote(SecondMethod->getLocation(),
+ SecondMethod->getSourceRange(), MethodParameterType)
+ << SecondName << (I + 1) << SecondParam->getType();
+ ParameterMismatch = true;
+ break;
+ }
+
+ DeclarationName FirstParamName = FirstParam->getDeclName();
+ DeclarationName SecondParamName = SecondParam->getDeclName();
+ if (FirstParamName != SecondParamName) {
+ ODRDiagError(FirstMethod->getLocation(),
+ FirstMethod->getSourceRange(), MethodParameterName)
+ << FirstName << (I + 1) << FirstParamName;
+ ODRDiagNote(SecondMethod->getLocation(),
+ SecondMethod->getSourceRange(), MethodParameterName)
+ << SecondName << (I + 1) << SecondParamName;
+ ParameterMismatch = true;
+ break;
+ }
+
+ const Expr* FirstDefaultArg = FirstParam->getDefaultArg();
+ const Expr* SecondDefaultArg = SecondParam->getDefaultArg();
+ if ((!FirstDefaultArg && SecondDefaultArg) ||
+ (FirstDefaultArg && !SecondDefaultArg)) {
+ ODRDiagError(FirstMethod->getLocation(),
+ FirstMethod->getSourceRange(),
+ MethodParameterSingleDefaultArgument)
+ << FirstName << (I + 1) << (FirstDefaultArg != nullptr);
+ ODRDiagNote(SecondMethod->getLocation(),
+ SecondMethod->getSourceRange(),
+ MethodParameterSingleDefaultArgument)
+ << SecondName << (I + 1) << (SecondDefaultArg != nullptr);
+ ParameterMismatch = true;
+ break;
+ }
+
+ if (ComputeODRHash(FirstDefaultArg) !=
+ ComputeODRHash(SecondDefaultArg)) {
+ ODRDiagError(FirstMethod->getLocation(),
+ FirstMethod->getSourceRange(),
+ MethodParameterDifferentDefaultArguments)
+ << FirstName << (I + 1);
+ ODRDiagNote(SecondMethod->getLocation(),
+ SecondMethod->getSourceRange(),
+ MethodParameterDifferentDefaultArguments)
+ << SecondName << (I + 1);
+ ParameterMismatch = true;
+ break;
+ }
+ }
+
+ if (ParameterMismatch) {
+ Diagnosed = true;
+ break;
+ }
break;
}
Modified: cfe/trunk/test/Modules/odr_hash.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Modules/odr_hash.cpp?rev=298742&r1=298741&r2=298742&view=diff
==============================================================================
--- cfe/trunk/test/Modules/odr_hash.cpp (original)
+++ cfe/trunk/test/Modules/odr_hash.cpp Fri Mar 24 16:17:48 2017
@@ -403,6 +403,79 @@ S8 s8;
// expected-note at first.h:* {{but in 'FirstModule' found method 'A' is const}}
#endif
+#if defined(FIRST)
+struct S9 {
+ void A(int x) {}
+ void A(int x, int y) {}
+};
+#elif defined(SECOND)
+struct S9 {
+ void A(int x, int y) {}
+ void A(int x) {}
+};
+#else
+S9 s9;
+// expected-error at second.h:* {{'Method::S9' has different definitions in different modules; first difference is definition in module 'SecondModule' found method 'A' that has 2 parameters}}
+// expected-note at first.h:* {{but in 'FirstModule' found method 'A' that has 1 parameter}}
+#endif
+
+#if defined(FIRST)
+struct S10 {
+ void A(int x) {}
+ void A(float x) {}
+};
+#elif defined(SECOND)
+struct S10 {
+ void A(float x) {}
+ void A(int x) {}
+};
+#else
+S10 s10;
+// expected-error at second.h:* {{'Method::S10' has different definitions in different modules; first difference is definition in module 'SecondModule' found method 'A' with 1st parameter of type 'float'}}
+// expected-note at first.h:* {{but in 'FirstModule' found method 'A' with 1st parameter of type 'int'}}
+#endif
+
+#if defined(FIRST)
+struct S11 {
+ void A(int x) {}
+};
+#elif defined(SECOND)
+struct S11 {
+ void A(int y) {}
+};
+#else
+S11 s11;
+// expected-error at second.h:* {{'Method::S11' has different definitions in different modules; first difference is definition in module 'SecondModule' found method 'A' with 1st parameter named 'y'}}
+// expected-note at first.h:* {{but in 'FirstModule' found method 'A' with 1st parameter named 'x'}}
+#endif
+
+#if defined(FIRST)
+struct S12 {
+ void A(int x) {}
+};
+#elif defined(SECOND)
+struct S12 {
+ void A(int x = 1) {}
+};
+#else
+S12 s12;
+// expected-error at second.h:* {{'Method::S12' has different definitions in different modules; first difference is definition in module 'SecondModule' found method 'A' with 1st parameter with default argument}}
+// expected-note at first.h:* {{but in 'FirstModule' found method 'A' with 1st parameter with no default argument}}
+#endif
+
+#if defined(FIRST)
+struct S13 {
+ void A(int x = 1 + 0) {}
+};
+#elif defined(SECOND)
+struct S13 {
+ void A(int x = 1) {}
+};
+#else
+S13 s13;
+// expected-error at second.h:* {{'Method::S13' has different definitions in different modules; first difference is definition in module 'SecondModule' found method 'A' with 1st parameter with default argument}}
+// expected-note at first.h:* {{but in 'FirstModule' found method 'A' with 1st parameter with different default argument}}
+#endif
} // namespace Method
// Naive parsing of AST can lead to cycles in processing. Ensure
@@ -522,7 +595,6 @@ S3 s3;
#endif
} // namespace Using
-
// Interesting cases that should not cause errors. struct S should not error
// while struct T should error at the access specifier mismatch at the end.
namespace AllDecls {
@@ -556,6 +628,9 @@ struct S {
typedef int typedef_int;
using using_int = int;
+
+ void method_one_arg(int x) {}
+ void method_one_arg_default_argument(int x = 5 + 5) {}
};
#elif defined(SECOND)
typedef int INT;
@@ -587,6 +662,9 @@ struct S {
typedef int typedef_int;
using using_int = int;
+
+ void method_one_arg(int x) {}
+ void method_one_arg_default_argument(int x = 5 + 5) {}
};
#else
S *s;
@@ -623,6 +701,9 @@ struct T {
typedef int typedef_int;
using using_int = int;
+ void method_one_arg(int x) {}
+ void method_one_arg_default_argument(int x = 5 + 5) {}
+
private:
};
#elif defined(SECOND)
@@ -656,6 +737,9 @@ struct T {
typedef int typedef_int;
using using_int = int;
+ void method_one_arg(int x) {}
+ void method_one_arg_default_argument(int x = 5 + 5) {}
+
public:
};
#else
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