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Add support for '__is_literal_type' spelling of the existing 

'__is_literal' type trait for GCC compatibility. At least one relased
version if libstdc++ uses this name for the trait despite it not being
documented anywhere.

llvm-svn: 130078
This commit is contained in:
Chandler Carruth 2011-04-24 02:49:28 +00:00
parent ad7d404732
commit 65fa1fd18e
5 changed files with 7 additions and 0 deletions
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3
clang/include/clang/Basic/TokenKinds.def
View File

@ -338,6 +338,9 @@ KEYWORD(__is_empty , KEYCXX)
KEYWORD(__is_enum , KEYCXX)
// Tentative name - there's no implementation of std::is_literal_type yet.
KEYWORD(__is_literal , KEYCXX)
// Name for GCC 4.6 compatibility - people have already written libraries using
// this name unfortunately.
KEYWORD(__is_literal_type , KEYCXX)
KEYWORD(__is_pod , KEYCXX)
KEYWORD(__is_polymorphic , KEYCXX)
KEYWORD(__is_trivial , KEYCXX)

1
clang/lib/Parse/ParseExpr.cpp
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@ -989,6 +989,7 @@ ExprResult Parser::ParseCastExpression(bool isUnaryExpression,
case tok::kw___is_empty:
case tok::kw___is_enum:
case tok::kw___is_literal:
case tok::kw___is_literal_type:
case tok::kw___is_pod:
case tok::kw___is_polymorphic:
case tok::kw___is_trivial:

1
clang/lib/Parse/ParseExprCXX.cpp
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@ -1927,6 +1927,7 @@ static UnaryTypeTrait UnaryTypeTraitFromTokKind(tok::TokenKind kind) {
case tok::kw___is_empty: return UTT_IsEmpty;
case tok::kw___is_enum: return UTT_IsEnum;
case tok::kw___is_literal: return UTT_IsLiteral;
case tok::kw___is_literal_type: return UTT_IsLiteral;
case tok::kw___is_pod: return UTT_IsPOD;
case tok::kw___is_polymorphic: return UTT_IsPolymorphic;
case tok::kw___is_trivial: return UTT_IsTrivial;

1
clang/lib/Parse/ParseTentative.cpp
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@ -660,6 +660,7 @@ Parser::isExpressionOrTypeSpecifierSimple(tok::TokenKind Kind) {
case tok::kw___is_empty:
case tok::kw___is_enum:
case tok::kw___is_literal:
case tok::kw___is_literal_type:
case tok::kw___is_pod:
case tok::kw___is_polymorphic:
case tok::kw___is_trivial:

1
clang/test/SemaCXX/literal-type.cpp
View File

@ -1,6 +1,7 @@
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++0x %s
static_assert(__is_literal(int), "fail");
static_assert(__is_literal_type(int), "fail"); // alternate spelling for GCC
static_assert(__is_literal(void*), "fail");
enum E { E1 };
static_assert(__is_literal(E), "fail");