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llvm-project/clang/test/Misc/diag-macro-backtrace.c

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Fix -fmacro-backtrace-limit=0 to show the entire macro backtrace. llvm-svn: 148930
2012-01-25 14:07:15 +08:00
// RUN: %clang -fsyntax-only -fmacro-backtrace-limit=0 %s 2>&1 | FileCheck %s
#define FOO 1+"hi"
#define BAR FOO
#define BAZ BAR
#define QUZ BAZ
#define TAZ QUZ
#define ABA TAZ
#define BAB ABA
#define ZAZ BAB
#define WAZ ZAZ
#define DROOL WAZ
#define FOOL DROOL
PR14049: Don't say "expanded from macro 'foo'" when 'foo' just happens to be the LHS of a token paste. Use "expanded from here" instead when we're not sure it's actually a macro. llvm-svn: 169373
2012-12-05 19:04:55 +08:00
FOOL;
Fix -fmacro-backtrace-limit=0 to show the entire macro backtrace. llvm-svn: 148930
2012-01-25 14:07:15 +08:00
// CHECK: :15:1: error: expected identifier or '('
// CHECK: FOOL
// CHECK: ^
// CHECK: :13:14: note: expanded from macro 'FOOL'
// CHECK: #define FOOL DROOL
// CHECK: ^
// CHECK: :12:15: note: expanded from macro 'DROOL'
// CHECK: #define DROOL WAZ
// CHECK: ^
// CHECK: :11:13: note: expanded from macro 'WAZ'
// CHECK: #define WAZ ZAZ
// CHECK: ^
// CHECK: :10:13: note: expanded from macro 'ZAZ'
// CHECK: #define ZAZ BAB
// CHECK: ^
// CHECK: :9:13: note: expanded from macro 'BAB'
// CHECK: #define BAB ABA
// CHECK: ^
// CHECK: :8:13: note: expanded from macro 'ABA'
// CHECK: #define ABA TAZ
// CHECK: ^
// CHECK: :7:13: note: expanded from macro 'TAZ'
// CHECK: #define TAZ QUZ
// CHECK: ^
// CHECK: :6:13: note: expanded from macro 'QUZ'
// CHECK: #define QUZ BAZ
// CHECK: ^
// CHECK: :5:13: note: expanded from macro 'BAZ'
// CHECK: #define BAZ BAR
// CHECK: ^
// CHECK: :4:13: note: expanded from macro 'BAR'
// CHECK: #define BAR FOO
// CHECK: ^
// CHECK: :3:13: note: expanded from macro 'FOO'
// CHECK: #define FOO 1+"hi"
// CHECK: ^
PR14049: Don't say "expanded from macro 'foo'" when 'foo' just happens to be the LHS of a token paste. Use "expanded from here" instead when we're not sure it's actually a macro. llvm-svn: 169373
2012-12-05 19:04:55 +08:00
#define ADD(a, b) a ## #b
ADD(L, foo)
// CHECK: error: expected identifier or '('
// CHECK: ADD(L, foo)
// CHECK: {{^\^}}
// CHECK: note: expanded from macro 'ADD'
// CHECK: #define ADD(a, b) a ## #b
// CHECK: {{^ \^}}
// CHECK: note: expanded from here
// CHECK: L"foo"
// CHECK: {{^\^}}
// CHECK: 2 errors generated.