forked from OSchip/llvm-project
6f6c40a875
The solution is to favor the longest possible nest-name-specifier, and
drop other alternatives by using the guard, per per C++ [basic.lookup.qual.general].
Motivated cases:
```
Foo::Foo() {};
// the constructor can be parsed as:
// - Foo ::Foo(); // where the first Foo is return-type, and ::Foo is the function declarator
// + Foo::Foo(); // where Foo::Foo is the function declarator
```
```
void test() {
// a very slow parsing case when there are many qualifers!
X::Y::Z;
// The statement can be parsed as:
// - X ::Y::Z; // ::Y::Z is the declarator
// - X::Y ::Z; // ::Z is the declarator
// + X::Y::Z; // a declaration without declarator (X::Y::Z is decl-specifier-seq)
// + X::Y::Z; // a qualifed-id expression
}
```
Differential Revision: https://reviews.llvm.org/D130511
|
||
|---|---|---|
| .. | ||
| Unit | ||
| crash | ||
| cxx | ||
| .clang-format | ||
| CMakeLists.txt | ||
| check-cxx-bnf.test | ||
| fuzzer.cpp | ||
| glr-variant-start.cpp | ||
| glr.cpp | ||
| html-forest.c | ||
| lex.c | ||
| lit.cfg.py | ||
| lit.local.cfg | ||
| lit.site.cfg.py.in | ||
| lr-build-basic.test | ||
| lr-build-conflicts.test | ||
| strip-directives.c | ||