Introduce a new representation for template template
parameters. Rather than storing them as either declarations (for the
non-dependent case) or expressions (for the dependent case), we now
(always) store them as TemplateNames.
The primary change here is to add a new kind of TemplateArgument,
which stores a TemplateName. However, making that change ripples to
every switch on a TemplateArgument's kind, also affecting
TemplateArgumentLocInfo/TemplateArgumentLoc, default template
arguments for template template parameters, type-checking of template
template arguments, etc.
This change is light on testing. It should fix several pre-existing
problems with template template parameters, such as:
- the inability to use dependent template names as template template
arguments
- template template parameter default arguments cannot be
instantiation
However, there are enough pieces missing that more implementation is
required before we can adequately test template template parameters.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86777 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/TemplateBase.cpp b/lib/AST/TemplateBase.cpp
index 94e1ca1..18a574c 100644
--- a/lib/AST/TemplateBase.cpp
+++ b/lib/AST/TemplateBase.cpp
@@ -58,6 +58,10 @@
ID.AddPointer(getAsDecl()? getAsDecl()->getCanonicalDecl() : 0);
break;
+ case Template:
+ ID.AddPointer(getAsTemplate().getAsVoidPointer());
+ break;
+
case Integral:
getAsIntegral()->Profile(ID);
getIntegralType().Profile(ID);
@@ -82,10 +86,19 @@
switch (Argument.getKind()) {
case TemplateArgument::Expression:
return getSourceExpression()->getSourceRange();
+
case TemplateArgument::Declaration:
return getSourceDeclExpression()->getSourceRange();
+
case TemplateArgument::Type:
return getSourceDeclaratorInfo()->getTypeLoc().getFullSourceRange();
+
+ case TemplateArgument::Template:
+ if (getTemplateQualifierRange().isValid())
+ return SourceRange(getTemplateQualifierRange().getBegin(),
+ getTemplateNameLoc());
+ return SourceRange(getTemplateNameLoc());
+
case TemplateArgument::Integral:
case TemplateArgument::Pack:
case TemplateArgument::Null: