Author: Pratyush Das
Date: 2021-06-29T14:57:26Z
New Revision: c33ebad73516ffcf7b00821a430aa6a0199941f0

URL: 
https://github.com/llvm/llvm-project/commit/c33ebad73516ffcf7b00821a430aa6a0199941f0
DIFF: 
https://github.com/llvm/llvm-project/commit/c33ebad73516ffcf7b00821a430aa6a0199941f0.diff

LOG: Print default template argument if manually specified in typedef 
declaration.

If a default template type argument is manually specified to be of the default
type, then it is committed when printing the template.

Differential revision: https://reviews.llvm.org/D103040

Added: 
    

Modified: 
    clang/lib/AST/TypePrinter.cpp
    clang/test/SemaTemplate/class-template-id.cpp
    clang/test/SemaTemplate/default-arguments-ast-print.cpp

Removed: 
    


################################################################################
diff  --git a/clang/lib/AST/TypePrinter.cpp b/clang/lib/AST/TypePrinter.cpp
index 720cab917a22..47e48506dc96 100644
--- a/clang/lib/AST/TypePrinter.cpp
+++ b/clang/lib/AST/TypePrinter.cpp
@@ -1449,8 +1449,7 @@ void TypePrinter::printTemplateId(const 
TemplateSpecializationType *T,
     T->getTemplateName().print(OS, Policy);
   }
 
-  const TemplateParameterList *TPL = TD ? TD->getTemplateParameters() : 
nullptr;
-  printTemplateArgumentList(OS, T->template_arguments(), Policy, TPL);
+  printTemplateArgumentList(OS, T->template_arguments(), Policy);
   spaceBeforePlaceHolder(OS);
 }
 

diff  --git a/clang/test/SemaTemplate/class-template-id.cpp 
b/clang/test/SemaTemplate/class-template-id.cpp
index b32a03e478d9..50cb3ef59ea4 100644
--- a/clang/test/SemaTemplate/class-template-id.cpp
+++ b/clang/test/SemaTemplate/class-template-id.cpp
@@ -9,9 +9,9 @@ A<int, FLOAT> *foo(A<int> *ptr, A<int> const *ptr2, A<int, 
double> *ptr3) {
   if (ptr)
     return ptr; // okay
   else if (ptr2)
-    return ptr2; // expected-error{{cannot initialize return object of type 
'A<int> *' with an lvalue of type 'const A<int> *'}}
+    return ptr2; // expected-error{{cannot initialize return object of type 
'A<int, FLOAT> *' (aka 'A<int, float> *') with an lvalue of type 'const A<int> 
*'}}
   else {
-    return ptr3; // expected-error{{cannot initialize return object of type 
'A<int> *' with an lvalue of type 'A<int, double> *'}}
+    return ptr3; // expected-error{{cannot initialize return object of type 
'A<int, FLOAT> *' (aka 'A<int, float> *') with an lvalue of type 'A<int, 
double> *'}}
   }
 }
 

diff  --git a/clang/test/SemaTemplate/default-arguments-ast-print.cpp 
b/clang/test/SemaTemplate/default-arguments-ast-print.cpp
index 9ed17a79de0d..4623f0a8cdf4 100644
--- a/clang/test/SemaTemplate/default-arguments-ast-print.cpp
+++ b/clang/test/SemaTemplate/default-arguments-ast-print.cpp
@@ -10,3 +10,15 @@ int Foo<int_type, double>::method1() {
   // CHECK: int Foo<int_type, double>::method1()
   return 10;
 }
+
+int test_typedef() {
+  typedef Foo<int, double> TypedefArg;
+  // CHECK: typedef Foo<int, double> TypedefArg;
+  return 10;
+}
+
+int test_typedef2() {
+  typedef Foo<int> TypedefArg;
+  // CHECK: typedef Foo<int> TypedefArg;
+  return 10;
+}


        
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