2014-06-13 10:24:47 +08:00
// RUN: not %clang_cc1 -triple x86_64-pc-linux -std=c++11 -ast-dump -fcolor-diagnostics %s | FileCheck --strict-whitespace %s
2013-01-26 09:31:20 +08:00
// REQUIRES: ansi-escape-sequences
/// <a>Hello</a>
/// <br/>
int Test __attribute__ ( ( unused ) ) ;
/// Comment
void TestAttributedStmt ( ) {
switch ( 1 ) {
case 1 :
[[clang::fallthrough]] ;
case 2 :
;
}
}
class __attribute__ ( ( lockable ) ) Mutex {
/// A variable
int var1 ;
/// Another variable
///
/// Like the other variable, but different
int var2 ;
} mu1 , mu2 ;
int TestExpr __attribute__ ( ( guarded_by ( mu1 ) ) ) ;
2014-06-13 10:24:47 +08:00
struct Invalid {
__attribute__ ( ( noinline ) ) Invalid ( error ) ;
} Invalid ;
2014-10-31 05:02:37 +08:00
//CHECK: {{^}}[[GREEN:.\[0;1;32m]]TranslationUnitDecl[[RESET:.\[0m]][[Yellow:.\[0;33m]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]<invalid sloc>[[RESET]]> [[Yellow]]<invalid sloc>[[RESET]]{{$}}
//CHECK: {{^}}[[Blue:.\[0;34m]]|-[[RESET]][[GREEN]]TypedefDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]<invalid sloc>[[RESET]]> [[Yellow]]<invalid sloc>[[RESET]] implicit[[CYAN:.\[0;1;36m]] __int128_t[[RESET]] [[Green:.\[0;32m]]'__int128'[[RESET]]{{$}}
2014-05-28 05:29:22 +08:00
//CHECK: {{^}}[[Blue]]|-[[RESET]][[GREEN]]TypedefDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]<invalid sloc>[[RESET]]> [[Yellow]]<invalid sloc>[[RESET]] implicit[[CYAN]] __uint128_t[[RESET]] [[Green]]'unsigned __int128'[[RESET]]{{$}}
2017-12-22 05:42:42 +08:00
//CHECK: {{^}}[[Blue]]|-[[RESET]][[GREEN]]TypedefDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]<invalid sloc>[[RESET]]> [[Yellow]]<invalid sloc>[[RESET]] implicit[[CYAN]] __builtin_va_list[[RESET]] [[Green]]'__va_list_tag [1]'[[RESET]]{{$}}
2014-07-11 06:54:03 +08:00
//CHECK: {{^}}[[Blue]]|-[[RESET]][[GREEN]]VarDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]{{.*}}ast-dump-color.cpp:6:1[[RESET]], [[Yellow]]col:5[[RESET]]> [[Yellow]]col:5[[RESET]][[CYAN]] Test[[RESET]] [[Green]]'int'[[RESET]]
2016-03-10 01:34:16 +08:00
//CHECK: {{^}}[[Blue]]| |-[[RESET]][[BLUE:.\[0;1;34m]]UnusedAttr[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:25[[RESET]]> unused{{$}}
2014-03-06 09:09:03 +08:00
//CHECK: {{^}}[[Blue]]| `-[[RESET]][[Blue]]FullComment[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:4:4[[RESET]], [[Yellow]]line:5:8[[RESET]]>{{$}}
//CHECK: {{^}}[[Blue]]| `-[[RESET]][[Blue]]ParagraphComment[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:4:4[[RESET]], [[Yellow]]line:5:8[[RESET]]>{{$}}
//CHECK: {{^}}[[Blue]]| |-[[RESET]][[Blue]]TextComment[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:4:4[[RESET]]> Text=" "{{$}}
//CHECK: {{^}}[[Blue]]| |-[[RESET]][[Blue]]HTMLStartTagComment[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:5[[RESET]], [[Yellow]]col:7[[RESET]]> Name="a"{{$}}
//CHECK: {{^}}[[Blue]]| |-[[RESET]][[Blue]]TextComment[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:8[[RESET]], [[Yellow]]col:12[[RESET]]> Text="Hello"{{$}}
//CHECK: {{^}}[[Blue]]| |-[[RESET]][[Blue]]HTMLEndTagComment[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:13[[RESET]], [[Yellow]]col:16[[RESET]]> Name="a"{{$}}
//CHECK: {{^}}[[Blue]]| |-[[RESET]][[Blue]]TextComment[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:5:4[[RESET]]> Text=" "{{$}}
//CHECK: {{^}}[[Blue]]| `-[[RESET]][[Blue]]HTMLStartTagComment[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:5[[RESET]], [[Yellow]]col:8[[RESET]]> Name="br" SelfClosing{{$}}
2017-12-22 05:42:42 +08:00
//CHECK: {{^}}[[Blue]]|-[[RESET]][[GREEN]]FunctionDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:9:1[[RESET]], [[Yellow]]line:16:1[[RESET]]> [[Yellow]]line:9:6[[RESET]][[CYAN]] TestAttributedStmt[[RESET]] [[Green]]'void ()'[[RESET]]{{$}}
2014-04-02 13:48:29 +08:00
//CHECK: {{^}}[[Blue]]| |-[[RESET]][[MAGENTA:.\[0;1;35m]]CompoundStmt[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:27[[RESET]], [[Yellow]]line:16:1[[RESET]]>{{$}}
2013-01-31 09:44:26 +08:00
//CHECK: {{^}}[[Blue]]| | `-[[RESET]][[MAGENTA]]SwitchStmt[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:10:3[[RESET]], [[Yellow]]line:15:3[[RESET]]>{{$}}
//CHECK: {{^}}[[Blue]]| | |-[[RESET]][[MAGENTA]]IntegerLiteral[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:10:11[[RESET]]> [[Green]]'int'[[RESET]][[Cyan:.\[0;36m]][[RESET]][[Cyan]][[RESET]][[CYAN]] 1[[RESET]]{{$}}
//CHECK: {{^}}[[Blue]]| | `-[[RESET]][[MAGENTA]]CompoundStmt[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:14[[RESET]], [[Yellow]]line:15:3[[RESET]]>{{$}}
//CHECK: {{^}}[[Blue]]| | |-[[RESET]][[MAGENTA]]CaseStmt[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:11:3[[RESET]], [[Yellow]]line:12:27[[RESET]]>{{$}}
[clang] Add storage for APValue in ConstantExpr
Summary:
When using ConstantExpr we often need the result of the expression to be kept in the AST. Currently this is done on a by the node that needs the result and has been done multiple times for enumerator, for constexpr variables... . This patch adds to ConstantExpr the ability to store the result of evaluating the expression. no functional changes expected.
Changes:
- Add trailling object to ConstantExpr that can hold an APValue or an uint64_t. the uint64_t is here because most ConstantExpr yield integral values so there is an optimized layout for integral values.
- Add basic* serialization support for the trailing result.
- Move conversion functions from an enum to a fltSemantics from clang::FloatingLiteral to llvm::APFloatBase. this change is to make it usable for serializing APValues.
- Add basic* Import support for the trailing result.
- ConstantExpr created in CheckConvertedConstantExpression now stores the result in the ConstantExpr Node.
- Adapt AST dump to print the result when present.
basic* : None, Indeterminate, Int, Float, FixedPoint, ComplexInt, ComplexFloat,
the result is not yet used anywhere but for -ast-dump.
Reviewers: rsmith, martong, shafik
Reviewed By: rsmith
Subscribers: rnkovacs, hiraditya, dexonsmith, cfe-commits, llvm-commits
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D62399
llvm-svn: 363493
2019-06-15 18:24:47 +08:00
//CHECK: {{^}}[[Blue]]| | | |-[[RESET]][[MAGENTA]]ConstantExpr[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:11:8[[RESET]]> [[Green]]'int'[[RESET]][[Cyan]][[RESET]][[Cyan]][[RESET]][[CYAN]] 1[[RESET]]{{$}}
2018-11-09 08:41:36 +08:00
//CHECK: {{^}}[[Blue]]| | | | `-[[RESET]][[MAGENTA]]IntegerLiteral[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:8[[RESET]]> [[Green]]'int'[[RESET]][[Cyan]][[RESET]][[Cyan]][[RESET]][[CYAN]] 1[[RESET]]{{$}}
2013-01-31 09:44:26 +08:00
//CHECK: {{^}}[[Blue]]| | | `-[[RESET]][[MAGENTA]]AttributedStmt[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:12:5[[RESET]], [[Yellow]]col:27[[RESET]]>{{$}}
//CHECK: {{^}}[[Blue]]| | | |-[[RESET]][[BLUE]]FallThroughAttr[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:7[[RESET]], [[Yellow]]col:14[[RESET]]>{{$}}
//CHECK: {{^}}[[Blue]]| | | `-[[RESET]][[MAGENTA]]NullStmt[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:27[[RESET]]>{{$}}
//CHECK: {{^}}[[Blue]]| | `-[[RESET]][[MAGENTA]]CaseStmt[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:13:3[[RESET]], [[Yellow]]line:14:5[[RESET]]>{{$}}
[clang] Add storage for APValue in ConstantExpr
Summary:
When using ConstantExpr we often need the result of the expression to be kept in the AST. Currently this is done on a by the node that needs the result and has been done multiple times for enumerator, for constexpr variables... . This patch adds to ConstantExpr the ability to store the result of evaluating the expression. no functional changes expected.
Changes:
- Add trailling object to ConstantExpr that can hold an APValue or an uint64_t. the uint64_t is here because most ConstantExpr yield integral values so there is an optimized layout for integral values.
- Add basic* serialization support for the trailing result.
- Move conversion functions from an enum to a fltSemantics from clang::FloatingLiteral to llvm::APFloatBase. this change is to make it usable for serializing APValues.
- Add basic* Import support for the trailing result.
- ConstantExpr created in CheckConvertedConstantExpression now stores the result in the ConstantExpr Node.
- Adapt AST dump to print the result when present.
basic* : None, Indeterminate, Int, Float, FixedPoint, ComplexInt, ComplexFloat,
the result is not yet used anywhere but for -ast-dump.
Reviewers: rsmith, martong, shafik
Reviewed By: rsmith
Subscribers: rnkovacs, hiraditya, dexonsmith, cfe-commits, llvm-commits
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D62399
llvm-svn: 363493
2019-06-15 18:24:47 +08:00
//CHECK: {{^}}[[Blue]]| | |-[[RESET]][[MAGENTA]]ConstantExpr[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:13:8[[RESET]]> [[Green]]'int'[[RESET]][[Cyan]][[RESET]][[Cyan]][[RESET]][[CYAN]] 2[[RESET]]{{$}}
2018-11-09 08:41:36 +08:00
//CHECK: {{^}}[[Blue]]| | | `-[[RESET]][[MAGENTA]]IntegerLiteral[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:8[[RESET]]> [[Green]]'int'[[RESET]][[Cyan]][[RESET]][[Cyan]][[RESET]][[CYAN]] 2[[RESET]]{{$}}
2013-01-31 09:44:26 +08:00
//CHECK: {{^}}[[Blue]]| | `-[[RESET]][[MAGENTA]]NullStmt[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:14:5[[RESET]]>{{$}}
2014-03-06 09:09:03 +08:00
//CHECK: {{^}}[[Blue]]| `-[[RESET]][[Blue]]FullComment[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:8:4[[RESET]], [[Yellow]]col:11[[RESET]]>{{$}}
//CHECK: {{^}}[[Blue]]| `-[[RESET]][[Blue]]ParagraphComment[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:4[[RESET]], [[Yellow]]col:11[[RESET]]>{{$}}
//CHECK: {{^}}[[Blue]]| `-[[RESET]][[Blue]]TextComment[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:4[[RESET]], [[Yellow]]col:11[[RESET]]> Text=" Comment"{{$}}
2014-04-02 13:48:29 +08:00
//CHECK: {{^}}[[Blue]]|-[[RESET]][[GREEN]]CXXRecordDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:18:1[[RESET]], [[Yellow]]line:25:1[[RESET]]> [[Yellow]]line:18:33[[RESET]] class[[CYAN]] Mutex[[RESET]] definition{{$}}
//CHECK: {{^}}[[Blue]]| |-[[RESET]][[BLUE]]CapabilityAttr[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:22[[RESET]]> capability "mutex"{{$}}
2014-05-28 05:29:22 +08:00
//CHECK: {{^}}[[Blue]]| |-[[RESET]][[GREEN]]CXXRecordDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:1[[RESET]], [[Yellow]]col:33[[RESET]]> [[Yellow]]col:33[[RESET]] implicit class[[CYAN]] Mutex[[RESET]]{{$}}
2014-04-02 13:48:29 +08:00
//CHECK: {{^}}[[Blue]]| |-[[RESET]][[GREEN]]FieldDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:20:3[[RESET]], [[Yellow]]col:7[[RESET]]> [[Yellow]]col:7[[RESET]][[CYAN]] var1[[RESET]] [[Green]]'int'[[RESET]]{{$}}
2014-03-06 09:09:03 +08:00
//CHECK: {{^}}[[Blue]]| | `-[[RESET]][[Blue]]FullComment[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:19:6[[RESET]], [[Yellow]]col:16[[RESET]]>{{$}}
//CHECK: {{^}}[[Blue]]| | `-[[RESET]][[Blue]]ParagraphComment[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:6[[RESET]], [[Yellow]]col:16[[RESET]]>{{$}}
//CHECK: {{^}}[[Blue]]| | `-[[RESET]][[Blue]]TextComment[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:6[[RESET]], [[Yellow]]col:16[[RESET]]> Text=" A variable"{{$}}
2014-04-02 13:48:29 +08:00
//CHECK: {{^}}[[Blue]]| |-[[RESET]][[GREEN]]FieldDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:24:3[[RESET]], [[Yellow]]col:7[[RESET]]> [[Yellow]]col:7[[RESET]][[CYAN]] var2[[RESET]] [[Green]]'int'[[RESET]]{{$}}
2014-03-06 09:09:03 +08:00
//CHECK: {{^}}[[Blue]]| | `-[[RESET]][[Blue]]FullComment[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:21:6[[RESET]], [[Yellow]]line:23:44[[RESET]]>{{$}}
//CHECK: {{^}}[[Blue]]| | |-[[RESET]][[Blue]]ParagraphComment[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:21:6[[RESET]], [[Yellow]]col:22[[RESET]]>{{$}}
//CHECK: {{^}}[[Blue]]| | | `-[[RESET]][[Blue]]TextComment[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:6[[RESET]], [[Yellow]]col:22[[RESET]]> Text=" Another variable"{{$}}
//CHECK: {{^}}[[Blue]]| | `-[[RESET]][[Blue]]ParagraphComment[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:23:6[[RESET]], [[Yellow]]col:44[[RESET]]>{{$}}
//CHECK: {{^}}[[Blue]]| | `-[[RESET]][[Blue]]TextComment[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:6[[RESET]], [[Yellow]]col:44[[RESET]]> Text=" Like the other variable, but different"{{$}}
2017-12-22 05:42:42 +08:00
//CHECK: {{^}}[[Blue]]| |-[[RESET]][[GREEN]]CXXConstructorDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:18:33[[RESET]]> [[Yellow]]col:33[[RESET]] implicit used[[CYAN]] Mutex[[RESET]] [[Green]]'void () noexcept'[[RESET]] inline{{.*$}}
2013-01-31 09:44:26 +08:00
//CHECK: {{^}}[[Blue]]| | `-[[RESET]][[MAGENTA]]CompoundStmt[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:33[[RESET]]>{{$}}
2017-12-22 05:42:42 +08:00
//CHECK: {{^}}[[Blue]]| |-[[RESET]][[GREEN]]CXXConstructorDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:33[[RESET]]> [[Yellow]]col:33[[RESET]] implicit constexpr[[CYAN]] Mutex[[RESET]] [[Green]]'void (const Mutex &)'[[RESET]] inline{{ .*$}}
//CHECK: {{^}}[[Blue]]| | `-[[RESET]][[GREEN]]ParmVarDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:33[[RESET]]> [[Yellow]]col:33[[RESET]] [[Green]]'const Mutex &'[[RESET]]{{$}}
//CHECK: {{^}}[[Blue]]| `-[[RESET]][[GREEN]]CXXConstructorDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:33[[RESET]]> [[Yellow]]col:33[[RESET]] implicit constexpr[[CYAN]] Mutex[[RESET]] [[Green]]'void (Mutex &&)'[[RESET]] inline{{ .*$}}
//CHECK: {{^}}[[Blue]]| `-[[RESET]][[GREEN]]ParmVarDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:33[[RESET]]> [[Yellow]]col:33[[RESET]] [[Green]]'Mutex &&'[[RESET]]{{$}}
//CHECK: {{^}}[[Blue]]|-[[RESET]][[GREEN]]VarDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:1[[RESET]], [[Yellow]]line:25:3[[RESET]]> [[Yellow]]col:3[[RESET]] referenced[[CYAN]] mu1[[RESET]] [[Green]]'class Mutex':'Mutex'[[RESET]]
//CHECK: {{^}}[[Blue]]| `-[[RESET]][[MAGENTA]]CXXConstructExpr[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:3[[RESET]]> [[Green]]'class Mutex':'Mutex'[[RESET]][[Cyan]][[RESET]][[Cyan]][[RESET]] [[Green]]'void () noexcept'[[RESET]]{{$}}
//CHECK: {{^}}[[Blue]]|-[[RESET]][[GREEN]]VarDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:18:1[[RESET]], [[Yellow]]line:25:8[[RESET]]> [[Yellow]]col:8[[RESET]][[CYAN]] mu2[[RESET]] [[Green]]'class Mutex':'Mutex'[[RESET]]
//CHECK: {{^}}[[Blue]]| `-[[RESET]][[MAGENTA]]CXXConstructExpr[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:8[[RESET]]> [[Green]]'class Mutex':'Mutex'[[RESET]][[Cyan]][[RESET]][[Cyan]][[RESET]] [[Green]]'void () noexcept'[[RESET]]{{$}}
2014-07-11 06:54:03 +08:00
//CHECK: {{^}}[[Blue]]|-[[RESET]][[GREEN]]VarDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:26:1[[RESET]], [[Yellow]]col:5[[RESET]]> [[Yellow]]col:5[[RESET]][[CYAN]] TestExpr[[RESET]] [[Green]]'int'[[RESET]]
2014-06-13 10:24:47 +08:00
//CHECK: {{^}}[[Blue]]| `-[[RESET]][[BLUE]]GuardedByAttr[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:29[[RESET]], [[Yellow]]col:43[[RESET]]>{{$}}
2019-06-12 01:50:32 +08:00
//CHECK: {{^}}[[Blue]]| `-[[RESET]][[MAGENTA]]DeclRefExpr[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:40[[RESET]]> [[Green]]'class Mutex':'Mutex'[[RESET]][[Cyan]] lvalue[[RESET]][[Cyan]][[RESET]] [[GREEN]]Var[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]][[CYAN]] 'mu1'[[RESET]] [[Green]]'class Mutex':'Mutex'[[RESET]] non_odr_use_unevaluated{{$}}
2014-06-13 10:24:47 +08:00
//CHECK: {{^}}[[Blue]]|-[[RESET]][[GREEN]]CXXRecordDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:28:1[[RESET]], [[Yellow]]line:30:1[[RESET]]> [[Yellow]]line:28:8[[RESET]] struct[[CYAN]] Invalid[[RESET]] definition
Add -Wunused-local-typedef, a warning that finds unused local typedefs.
The warning warns on TypedefNameDecls -- typedefs and C++11 using aliases --
that are !isReferenced(). Since the isReferenced() bit on TypedefNameDecls
wasn't used for anything before this warning it wasn't always set correctly,
so this patch also adds a few missing MarkAnyDeclReferenced() calls in
various places for TypedefNameDecls.
This is made a bit complicated due to local typedefs possibly being used only
after their local scope has closed. Consider:
template <class T>
void template_fun(T t) {
typename T::Foo s3foo; // YYY
(void)s3foo;
}
void template_fun_user() {
struct Local {
typedef int Foo; // XXX
} p;
template_fun(p);
}
Here the typedef in XXX is only used at end-of-translation unit, when YYY in
template_fun() gets instantiated. To handle this, typedefs that are unused when
their scope exits are added to a set of potentially unused typedefs, and that
set gets checked at end-of-TU. Typedefs that are still unused at that point then
get warned on. There's also serialization code for this set, so that the
warning works with precompiled headers and modules. For modules, the warning
is emitted when the module is built, for precompiled headers each time the
header gets used.
Finally, consider a function using C++14 auto return types to return a local
type defined in a header:
auto f() {
struct S { typedef int a; };
return S();
}
Here, the typedef escapes its local scope and could be used by only some
translation units including the header. To not warn on this, add a
RecursiveASTVisitor that marks all delcs on local types returned from auto
functions as referenced. (Except if it's a function with internal linkage, or
the decls are private and the local type has no friends -- in these cases, it
_is_ safe to warn.)
Several of the included testcases (most of the interesting ones) were provided
by Richard Smith.
(gcc's spelling -Wunused-local-typedefs is supported as an alias for this
warning.)
llvm-svn: 217298
2014-09-06 09:25:55 +08:00
//CHECK: {{^}}[[Blue]]| |-[[RESET]][[GREEN]]CXXRecordDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:1[[RESET]], [[Yellow]]col:8[[RESET]]> [[Yellow]]col:8[[RESET]] implicit referenced struct[[CYAN]] Invalid[[RESET]]
2014-06-13 10:24:47 +08:00
//CHECK: {{^}}[[Blue]]| |-[[RESET]][[GREEN]]CXXConstructorDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:29:3[[RESET]], [[Yellow]]col:42[[RESET]]> [[Yellow]]col:29[[RESET]] invalid[[CYAN]] Invalid[[RESET]] [[Green]]'void (int)'[[RESET]]
//CHECK: {{^}}[[Blue]]| | |-[[RESET]][[GREEN]]ParmVarDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:37[[RESET]], [[Yellow]]<invalid sloc>[[RESET]]> [[Yellow]]col:42[[RESET]] invalid [[Green]]'int'[[RESET]]
//CHECK: {{^}}[[Blue]]| | `-[[RESET]][[BLUE]]NoInlineAttr[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:18[[RESET]]>
2017-12-22 05:42:42 +08:00
//CHECK: {{^}}[[Blue]]| |-[[RESET]][[GREEN]]CXXConstructorDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]line:28:8[[RESET]]> [[Yellow]]col:8[[RESET]] implicit used constexpr[[CYAN]] Invalid[[RESET]] [[Green]]'void () noexcept'[[RESET]] inline
2014-06-13 10:24:47 +08:00
//CHECK: {{^}}[[Blue]]| | `-[[RESET]][[MAGENTA]]CompoundStmt[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:8[[RESET]]>
2017-12-22 05:42:42 +08:00
//CHECK: {{^}}[[Blue]]| |-[[RESET]][[GREEN]]CXXConstructorDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:8[[RESET]]> [[Yellow]]col:8[[RESET]] implicit constexpr[[CYAN]] Invalid[[RESET]] [[Green]]'void (const Invalid &)'[[RESET]] inline default trivial noexcept-unevaluated 0x{{[0-9a-fA-F]*}}
//CHECK: {{^}}[[Blue]]| | `-[[RESET]][[GREEN]]ParmVarDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:8[[RESET]]> [[Yellow]]col:8[[RESET]] [[Green]]'const Invalid &'[[RESET]]
//CHECK: {{^}}[[Blue]]| `-[[RESET]][[GREEN]]CXXConstructorDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:8[[RESET]]> [[Yellow]]col:8[[RESET]] implicit constexpr[[CYAN]] Invalid[[RESET]] [[Green]]'void (Invalid &&)'[[RESET]] inline default trivial noexcept-unevaluated 0x{{[0-9a-fA-F]*}}
//CHECK: {{^}}[[Blue]]| `-[[RESET]][[GREEN]]ParmVarDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:8[[RESET]]> [[Yellow]]col:8[[RESET]] [[Green]]'Invalid &&'[[RESET]]
//CHECK: {{^}}[[Blue]]`-[[RESET]][[GREEN]]VarDecl[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:1[[RESET]], [[Yellow]]line:30:3[[RESET]]> [[Yellow]]col:3[[RESET]][[CYAN]] Invalid[[RESET]] [[Green]]'struct Invalid':'Invalid'[[RESET]]
//CHECK: {{^}}[[Blue]] `-[[RESET]][[MAGENTA]]CXXConstructExpr[[RESET]][[Yellow]] 0x{{[0-9a-fA-F]*}}[[RESET]] <[[Yellow]]col:3[[RESET]]> [[Green]]'struct Invalid':'Invalid'[[RESET]][[Cyan]][[RESET]][[Cyan]][[RESET]] [[Green]]'void () noexcept'[[RESET]]
