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[libclang] Generalize clang_getNumTemplateArguments and clang_getTemplateArgumentAsType to other kind of specializations. 

Patch by Emilio Cobos Álvarez!
https://reviews.llvm.org/D26663

llvm-svn: 287024
This commit is contained in:
Argyrios Kyrtzidis 2016-11-15 20:51:46 +00:00
parent bf55f7ea59
commit 35f5aab4d7
3 changed files with 22 additions and 21 deletions
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7
clang/include/clang-c/Index.h
View File

@ -3516,11 +3516,8 @@ enum CXRefQualifierKind {
};
/**
* \brief Returns the number of template arguments for given class template
* specialization, or -1 if type \c T is not a class template specialization.
*
* Variadic argument packs count as only one argument, and can not be inspected
* further.
* \brief Returns the number of template arguments for given template
* specialization, or -1 if type \c T is not a template specialization.
*/
CINDEX_LINKAGE int clang_Type_getNumTemplateArguments(CXType T);

11
clang/test/Index/print-type.cpp
View File

@ -56,6 +56,11 @@ auto autoBlob = new Blob();
auto autoFunction(){return int();}
decltype(auto) autoInt = 5;
template <typename T>
using TypeAlias = outer::Qux<T>;
struct TypeAliasUser { TypeAlias<int> foo; };
// RUN: c-index-test -test-print-type %s -std=c++14 | FileCheck %s
// CHECK: Namespace=outer:1:11 (Definition) [type=] [typekind=Invalid] [isPOD=0]
// CHECK: ClassTemplate=Foo:4:8 (Definition) [type=] [typekind=Invalid] [isPOD=0]
@ -99,7 +104,7 @@ decltype(auto) autoInt = 5;
// CHECK: TemplateRef=Baz:9:8 [type=] [typekind=Invalid] [isPOD=0]
// CHECK: IntegerLiteral= [type=int] [typekind=Int] [isPOD=1]
// CHECK: TemplateRef=Foo:4:8 [type=] [typekind=Invalid] [isPOD=0]
// CHECK: FieldDecl=qux:28:29 (Definition) [type=Qux<int, char *, Foo<int> >] [typekind=Unexposed] [canonicaltype=outer::Qux<int, char *, outer::Foo<int> >] [canonicaltypekind=Record] [templateargs/1=] [isPOD=1]
// CHECK: FieldDecl=qux:28:29 (Definition) [type=Qux<int, char *, Foo<int> >] [typekind=Unexposed] [canonicaltype=outer::Qux<int, char *, outer::Foo<int> >] [canonicaltypekind=Record] [templateargs/3= [type=int] [typekind=Int] [type=char *] [typekind=Pointer] [type=Foo<int>] [typekind=Unexposed]] [isPOD=1]
// CHECK: TemplateRef=Qux:12:8 [type=] [typekind=Invalid] [isPOD=0]
// CHECK: TemplateRef=Foo:4:8 [type=] [typekind=Invalid] [isPOD=0]
// CHECK: FunctionTemplate=tbar:35:3 [type=T (int)] [typekind=FunctionProto] [canonicaltype=type-parameter-0-0 (int)] [canonicaltypekind=FunctionProto] [resulttype=T] [resulttypekind=Unexposed] [isPOD=0]
@ -148,3 +153,7 @@ decltype(auto) autoInt = 5;
// CHECK: UnexposedExpr= [type=int] [typekind=Int] [isPOD=1]
// CHECK: VarDecl=autoInt:57:16 (Definition) [type=int] [typekind=Auto] [canonicaltype=int] [canonicaltypekind=Int] [isPOD=1]
// CHECK: IntegerLiteral= [type=int] [typekind=Int] [isPOD=1]
// CHECK: TypeAliasTemplateDecl=TypeAlias:60:1 (Definition) [type=] [typekind=Invalid] [isPOD=0]
// CHECK: TemplateTypeParameter=T:59:20 (Definition) [type=T] [typekind=Unexposed] [canonicaltype=type-parameter-0-0] [canonicaltypekind=Unexposed] [isPOD=0]
// CHECK: FieldDecl=foo:62:39 (Definition) [type=TypeAlias<int>] [typekind=Unexposed] [canonicaltype=outer::Qux<int>] [canonicaltypekind=Record] [templateargs/1= [type=int] [typekind=Int]] [isPOD=1]
// CHECK: TemplateRef=TypeAlias:60:1 [type=] [typekind=Invalid] [isPOD=0]

25
clang/tools/libclang/CXType.cpp
View File

@ -925,31 +925,26 @@ int clang_Type_getNumTemplateArguments(CXType CT) {
QualType T = GetQualType(CT);
if (T.isNull())
return -1;
const CXXRecordDecl *RecordDecl = T->getAsCXXRecordDecl();
if (!RecordDecl)
const TemplateSpecializationType *Specialization =
T->getAs<TemplateSpecializationType>();
if (!Specialization)
return -1;
const ClassTemplateSpecializationDecl *TemplateDecl =
dyn_cast<ClassTemplateSpecializationDecl>(RecordDecl);
if (!TemplateDecl)
return -1;
return TemplateDecl->getTemplateArgs().size();
return Specialization->template_arguments().size();
}
CXType clang_Type_getTemplateArgumentAsType(CXType CT, unsigned i) {
QualType T = GetQualType(CT);
if (T.isNull())
return MakeCXType(QualType(), GetTU(CT));
const CXXRecordDecl *RecordDecl = T->getAsCXXRecordDecl();
if (!RecordDecl)
const TemplateSpecializationType *Specialization =
T->getAs<TemplateSpecializationType>();
if (!Specialization)
return MakeCXType(QualType(), GetTU(CT));
const ClassTemplateSpecializationDecl *TemplateDecl =
dyn_cast<ClassTemplateSpecializationDecl>(RecordDecl);
if (!TemplateDecl)
return MakeCXType(QualType(), GetTU(CT));
const TemplateArgumentList &TA = TemplateDecl->getTemplateArgs();
auto TA = Specialization->template_arguments();
if (TA.size() <= i)
return MakeCXType(QualType(), GetTU(CT));
const TemplateArgument &A = TA.get(i);
const TemplateArgument &A = TA[i];
if (A.getKind() != TemplateArgument::Type)
return MakeCXType(QualType(), GetTU(CT));
return MakeCXType(A.getAsType(), GetTU(CT));