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| author | Vadim Petrochenkov <vadim.petrochenkov@gmail.com> | 2016-04-21 02:03:29 +0300 |
|---|---|---|
| committer | Vadim Petrochenkov <vadim.petrochenkov@gmail.com> | 2016-04-24 20:59:44 +0300 |
| commit | a97f60ee8618fde7bafe49d79a3ea670758e6a0c (patch) | |
| tree | ff11f35da542fcbf667cd3f70e4b32402618870b /src/libsyntax/parse/token.rs | |
| parent | 6c44bea64435fd3859439a6ecab7758855a13f07 (diff) | |
| download | rust-a97f60ee8618fde7bafe49d79a3ea670758e6a0c.tar.gz rust-a97f60ee8618fde7bafe49d79a3ea670758e6a0c.zip | |
syntax: Make `is_path_start` precise and improve some error messages about unexpected tokens
Diffstat (limited to 'src/libsyntax/parse/token.rs')
| -rw-r--r-- | src/libsyntax/parse/token.rs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/libsyntax/parse/token.rs b/src/libsyntax/parse/token.rs index 32078c875be..fcb6c3539db 100644 --- a/src/libsyntax/parse/token.rs +++ b/src/libsyntax/parse/token.rs @@ -243,6 +243,11 @@ impl Token { self.is_keyword(keywords::Const) } + pub fn is_path_start(&self) -> bool { + self == &ModSep || self == &Lt || self.is_path() || + self.is_path_segment_keyword() || self.is_ident() && !self.is_any_keyword() + } + /// Maps a token to its corresponding binary operator. pub fn to_binop(&self) -> Option<BinOpKind> { match *self { |