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llvm-project/clang/test/Lexer/pragma-operators.cpp

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Add -fuse-line-directive flag to control usage of #line with -E Currently -fms-extensions controls this behavior, which doesn't make much sense. It means we can't identify what is and isn't a system header when compiling our own preprocessed output, because #line doesn't represent this information. If someone is feeding Clang's preprocessed output to another compiler, they can use this flag. Fixes PR20553. Reviewers: rsmith Differential Revision: http://reviews.llvm.org/D5217 llvm-svn: 230587
2015-02-26 08:17:25 +08:00
// RUN: %clang_cc1 -fms-extensions -std=c++11 -E %s -fuse-line-directives | FileCheck %s
When we parse a pragma, keep track of how that pragma was originally spelled (#pragma, _Pragma, __pragma). In -E mode, use that information to add appropriate newlines when translating _Pragma and __pragma into #pragma, like GCC does. Fixes <rdar://problem/8412013>. llvm-svn: 113553
2010-09-10 06:45:38 +08:00
// Test that we properly expand the C99 _Pragma and Microsoft __pragma
// into #pragma directives, with newlines where needed. <rdar://problem/8412013>
// CHECK: #line
// CHECK: #pragma warning(push)
Make sure we're producing a newline in the preprocessed output before emitting a #pragma, whenever one is needed. Fixes <rdar://problem/8417307>. llvm-svn: 113648
2010-09-11 06:27:29 +08:00
// CHECK: extern "C" {
When we parse a pragma, keep track of how that pragma was originally spelled (#pragma, _Pragma, __pragma). In -E mode, use that information to add appropriate newlines when translating _Pragma and __pragma into #pragma, like GCC does. Fixes <rdar://problem/8412013>. llvm-svn: 113553
2010-09-10 06:45:38 +08:00
// CHECK: #line
Make sure we're producing a newline in the preprocessed output before emitting a #pragma, whenever one is needed. Fixes <rdar://problem/8417307>. llvm-svn: 113648
2010-09-11 06:27:29 +08:00
// CHECK: #pragma warning(push)
// CHECK: int foo() { return 0; } }
When we parse a pragma, keep track of how that pragma was originally spelled (#pragma, _Pragma, __pragma). In -E mode, use that information to add appropriate newlines when translating _Pragma and __pragma into #pragma, like GCC does. Fixes <rdar://problem/8412013>. llvm-svn: 113553
2010-09-10 06:45:38 +08:00
// CHECK: #pragma warning(pop)
Make sure we're producing a newline in the preprocessed output before emitting a #pragma, whenever one is needed. Fixes <rdar://problem/8417307>. llvm-svn: 113648
2010-09-11 06:27:29 +08:00
#define A(X) extern "C" { __pragma(warning(push)) \
int X() { return 0; } \
}
#define B(X) A(X)
#pragma warning(push)
B(foo)
#pragma warning(pop)
Handle _Pragma on a u8, u, or U string literal per the C11 specification. Also handle raw string literals here. C++11 doesn't yet specify how they will behave, but discussion on core suggests that we should just strip off everything but the r-char-sequence. llvm-svn: 176779
2013-03-10 07:30:15 +08:00
#define pragma_L _Pragma(L"GCC diagnostic push")
#define pragma_u8 _Pragma(u8"system_header")
#define pragma_u _Pragma(u"GCC diagnostic pop")
#define pragma_U _Pragma(U"comment(lib, \"libfoo\")")
#define pragma_R _Pragma(R"(clang diagnostic ignored "-Wunused")")
#define pragma_UR _Pragma(UR"(clang diagnostic error "-Wunused")")
#define pragma_hello _Pragma(u8R"x(message R"y("Hello", world!)y")x")
// CHECK: int n =
// CHECK: #pragma GCC diagnostic push
// CHECK: #pragma system_header
// CHECK: #pragma GCC diagnostic pop
// CHECK: #pragma comment(lib, "libfoo")
// CHECK: #pragma clang diagnostic ignored "-Wunused"
// CHECK: #pragma clang diagnostic error "-Wunused"
Keep the parentheses in #pragma message (partial revert of r179771). llvm-svn: 179862
2013-04-20 01:13:17 +08:00
// CHECK: #pragma message("\042Hello\042, world!")
Handle _Pragma on a u8, u, or U string literal per the C11 specification. Also handle raw string literals here. C++11 doesn't yet specify how they will behave, but discussion on core suggests that we should just strip off everything but the r-char-sequence. llvm-svn: 176779
2013-03-10 07:30:15 +08:00
// CHECK: 0;
int n = pragma_L pragma_u8 pragma_u pragma_U pragma_R pragma_UR pragma_hello 0;
Lex and ignore Microsoft's #pragma warning(...) Summary: This fixes PR17145 and avoids unknown pragma warnings. This change does not attempt to map MSVC warning numbers to clang warning flags. Perhaps in the future we will implement a mapping for some common subset of Microsoft warnings, but for now we don't. Reviewers: rsmith CC: cfe-commits Differential Revision: http://llvm-reviews.chandlerc.com/D1652 llvm-svn: 190726
2013-09-14 06:00:30 +08:00
#pragma warning(disable : 1 2L 3U ; error : 4 5 6 ; suppress : 7 8 9)
// CHECK: #pragma warning(disable: 1 2 3)
// CHECK: #line [[@LINE-2]]
// CHECK: #pragma warning(error: 4 5 6)
// CHECK: #line [[@LINE-4]]
// CHECK: #pragma warning(suppress: 7 8 9)
#pragma warning(push)
#pragma warning(push, 1L)
#pragma warning(push, 4U)
#pragma warning(push, 0x1)
#pragma warning(push, 03)
#pragma warning(push, 0b10)
#pragma warning(push, 1i8)
// CHECK: #pragma warning(push)
// CHECK: #pragma warning(push, 1)
// CHECK: #pragma warning(push, 4)
// CHECK: #pragma warning(push, 1)
// CHECK: #pragma warning(push, 3)
// CHECK: #pragma warning(push, 2)
// CHECK: #pragma warning(push, 1)