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| author | Arthur Cohen <arthur.cohen@embecosm.com> | 2022-03-24 15:03:20 +0100 |
|---|---|---|
| committer | Arthur Cohen <arthur.cohen@embecosm.com> | 2022-03-24 15:03:20 +0100 |
| commit | 5651331236d39ce685e1de3396463fd88c3a83d2 (patch) | |
| tree | 3729e3e925c99ac127e593918544c43fc4a2d855 /gcc/rust/expand/rust-macro-expand.cc | |
| parent | 8283724bc24efc0c11960947f2d4e99bc20b3765 (diff) | |
| download | gcc-5651331236d39ce685e1de3396463fd88c3a83d2.zip gcc-5651331236d39ce685e1de3396463fd88c3a83d2.tar.gz gcc-5651331236d39ce685e1de3396463fd88c3a83d2.tar.bz2 | |
macros: Allow parsing :tt fragments
:tt fragments stand for token trees, and are composed of either a token,
or a delimited token tree, which is a token tree surrounded by
delimiters (parentheses, curly brackets or square brackets).
This should allow us to handle a lot more macros, including extremely
powerful macro patterns such as TT munchers
Diffstat (limited to 'gcc/rust/expand/rust-macro-expand.cc')
| -rw-r--r-- | gcc/rust/expand/rust-macro-expand.cc | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/gcc/rust/expand/rust-macro-expand.cc b/gcc/rust/expand/rust-macro-expand.cc index e0dfc50..6227344 100644 --- a/gcc/rust/expand/rust-macro-expand.cc +++ b/gcc/rust/expand/rust-macro-expand.cc @@ -497,10 +497,8 @@ MacroExpander::match_fragment (Parser<MacroInvocLexer> &parser, gcc_unreachable (); break; - // what is TT? case AST::MacroFragSpec::TT: - // parser.parse_token_tree() ? - gcc_unreachable (); + parser.parse_token_tree (); break; // i guess we just ignore invalid and just error out |