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https://github.com/Gericom/teak-llvm.git
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b87be18d8e
Summary:
There are cases where the same string or select is repeated verbatim in a lot of diagnostics. This can be a pain to maintain and update. Tablegen provides no way stash the common text somewhere and reuse it in the diagnostics, until now!
This patch allows diagnostic texts to contain `%sub{<definition-name>}`, where `<definition-name>` names a Tablegen record of type `TextSubstitution`. These substitutions are done early, before the diagnostic string is otherwise processed. All `%sub` modifiers will be replaced before the diagnostic definitions are emitted.
The substitution must specify all arguments used by the substitution, and modifier indexes in the substitution are re-numbered accordingly. For example:
```
def select_ovl_candidate : TextSubstitution<"%select{function|constructor}0%select{| template| %2}1">;
```
when used as
```
"candidate `%sub{select_ovl_candidate}3,2,1 not viable"
```
will act as if we wrote:
```
"candidate %select{function|constructor}3%select{| template| %1}2 not viable"
```
Reviewers: rsmith, rjmccall, aaron.ballman, a.sidorin
Reviewed By: rjmccall
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D46740
llvm-svn: 332799
42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
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// RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s
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// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
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struct S {
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S();
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#if __cplusplus <= 199711L
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// expected-note@-2 {{because type 'S' has a user-provided default constructor}}
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#endif
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};
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struct { // expected-error {{anonymous structs and classes must be class members}}
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};
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struct E {
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struct {
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S x;
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#if __cplusplus <= 199711L
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// expected-error@-2 {{anonymous struct member 'x' has a non-trivial default constructor}}
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#endif
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};
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static struct {
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};
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class {
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int anon_priv_field; // expected-error {{anonymous struct cannot contain a private data member}}
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};
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};
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template <class T> void foo(T);
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typedef struct { // expected-note {{use a tag name here to establish linkage prior to definition}}
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#if __cplusplus <= 199711L
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// expected-note@-2 {{declared here}}
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#endif
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void test() {
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foo(this);
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#if __cplusplus <= 199711L
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// expected-warning@-2 {{template argument uses unnamed type}}
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#endif
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}
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} A; // expected-error {{unsupported: typedef changes linkage of anonymous type, but linkage was already computed}}
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