Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'xtask/src/codegen/grammar.rs')
| -rw-r--r-- | xtask/src/codegen/grammar.rs | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/xtask/src/codegen/grammar.rs b/xtask/src/codegen/grammar.rs index d39231f1c2..035891dcbe 100644 --- a/xtask/src/codegen/grammar.rs +++ b/xtask/src/codegen/grammar.rs @@ -404,6 +404,7 @@ fn generate_syntax_kinds(grammar: KindsSrc) -> String { }); let punctuation = grammar.punct.iter().map(|(_token, name)| format_ident!("{}", name)).collect::<Vec<_>>(); + let punctuation_texts = grammar.punct.iter().map(|&(text, _name)| text); let fmt_kw_as_variant = |&name| match name { "Self" => format_ident!("SELF_TYPE_KW"), @@ -429,6 +430,7 @@ fn generate_syntax_kinds(grammar: KindsSrc) -> String { quote! { #kw if #ed <= edition } }) .collect::<Vec<_>>(); + let edition_dependent_keywords = grammar.edition_dependent_keywords.iter().map(|&(it, _)| it); let edition_dependent_keywords_variants = grammar .edition_dependent_keywords .iter() @@ -502,6 +504,20 @@ fn generate_syntax_kinds(grammar: KindsSrc) -> String { use self::SyntaxKind::*; impl SyntaxKind { + #[allow(unreachable_patterns)] + pub const fn text(self) -> &'static str { + match self { + TOMBSTONE | EOF | __LAST + #( | #literals )* + #( | #nodes )* + #( | #tokens )* => panic!("no text for these `SyntaxKind`s"), + #( #punctuation => #punctuation_texts ,)* + #( #strict_keywords_variants => #strict_keywords ,)* + #( #contextual_keywords_variants => #contextual_keywords ,)* + #( #edition_dependent_keywords_variants => #edition_dependent_keywords ,)* + } + } + /// Checks whether this syntax kind is a strict keyword for the given edition. /// Strict keywords are identifiers that are always considered keywords. pub fn is_strict_keyword(self, edition: Edition) -> bool { |