hawkinsw/gp4
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

grammar: Parse externs

Browse Source 
Signed-off-by: Will Hawkins <hawkinsw@obs.cr>
This commit is contained in:
Will Hawkins
2026-04-23 06:01:31 -04:00
parent a2d6aa0e28
commit 74fead1eba
3 changed files with 95 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files
tree-sitter-p4/grammar.js
+5 -2
View File
@@ -68,13 +68,16 @@ export default grammar({
instantiation: $ => seq($.typeRef, '(', optional($.parameter_list), ')', $.identifier),
// Declarations
declaration: $ => seq(choice($.parserDeclaration, $.parserTypeDeclaration, $.type_declaration, $.function_declaration, $.control_declaration)),
declaration: $ => seq(choice($.parserDeclaration, $.parserTypeDeclaration, $.type_declaration, $.function_declaration, $.control_declaration, $.extern_declaration)),
type_declaration: $=> choice($.struct_declaration),
struct_declaration: $ => seq($.struct, $.identifier, '{', optional($.struct_declaration_fields), '}'),
struct_declaration_fields: $=> repeat1(seq($.variableDeclaration)),
function_declaration: $=> seq($.typeRef, $.identifier, $.parameters, $.statement),
extern_declaration: $=> seq($.extern, $.declaration),
// The body is truly optional only in the extern case. This check is handled by the compiler.
function_declaration: $=> seq($.typeRef, $.identifier, $.parameters, optional($.blockStatement)),
// Make separate productions for the parser type and the parser type declaration because the latter can have type parameters.
parserTypeDeclaration: $ => seq(optional($.annotations), $.parser, field('parser_name', $.identifier), optional($.typeParameters), $.parameters),