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Add gcc-style attributes to parser

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This commit is contained in:
Josh Holtrop 2018-05-09 20:24:12 -04:00
parent 625410faa0
commit aa6ef6b8d6
2 changed files with 52 additions and 6 deletions
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1
src/parser/parser.l
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@ -121,6 +121,7 @@ continue return CONTINUE;
sizeof return SIZEOF;
__attribute__ return ATTRIBUTE;
L?'[^\\]' return CHAR_CONST;
L?'\\.' return CHAR_CONST;

57
src/parser/parser.yc
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@ -112,6 +112,7 @@ int yylex(YYSTYPE *, YYLTYPE *);
%token IDENTIFIER;
%token TYPE_NAME;
%token ATTRIBUTE;
%start translation_unit
@ -303,6 +304,14 @@ declaration_specifiers
$$ = $2;
$$->list->push_back($1);
}
| attribute_spec {
$$ = new Node(NODE_TYPE_LIST);
$$->list->push_back($1);
}
| attribute_spec declaration_specifiers {
$$ = $2;
$$->list->push_back($1);
}
;
init_declarator_list
@ -404,8 +413,8 @@ type_qualifier
;
declarator
: pointer direct_declarator { $$ = $2; }
| direct_declarator
: pointer direct_declarator opt_attribute_spec { $$ = $2; }
| direct_declarator opt_attribute_spec
;
direct_declarator
@ -558,10 +567,46 @@ external_declaration
;
function_definition
: declaration_specifiers declarator declaration_list compound_statement
| declaration_specifiers declarator compound_statement
| declarator declaration_list compound_statement
| declarator compound_statement
: declaration_specifiers declarator declaration_list opt_attribute_spec compound_statement
| declaration_specifiers declarator opt_attribute_spec compound_statement
| declarator declaration_list opt_attribute_spec compound_statement
| declarator opt_attribute_spec compound_statement
;
opt_attribute_spec
: { $$ = nullptr; }
| attribute_spec
;
attribute_spec
: ATTRIBUTE LPAREN LPAREN attribute_list RPAREN RPAREN
;
attribute_list
: attribute {
$$ = new Node(NODE_TYPE_LIST);
$$->list->push_back($1);
}
| attribute_list COMMA attribute {
$$ = $1;
$$->list->push_back($3);
}
;
attribute
: IDENTIFIER
| IDENTIFIER LPAREN primary_expression_list RPAREN
;
primary_expression_list
: primary_expression {
$$ = new Node(NODE_TYPE_LIST);
$$->list->push_back($1);
}
| primary_expression_list COMMA primary_expression {
$$ = $1;
$$->list->push_back($3);
}
;
%%