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Added support for functions returning integer

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This commit is contained in:
Clifford Wolf 2014-02-12 23:29:54 +01:00
parent ab71bd0746
commit 007bdff55d
1 changed files with 12 additions and 2 deletions
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14
frontends/verilog/parser.y
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@ -106,7 +106,7 @@ static void free_attr(std::map<std::string, AstNode*> *al)
%token TOK_SUPPLY0 TOK_SUPPLY1 TOK_TO_SIGNED TOK_TO_UNSIGNED %token TOK_SUPPLY0 TOK_SUPPLY1 TOK_TO_SIGNED TOK_TO_UNSIGNED
%token TOK_POS_INDEXED TOK_NEG_INDEXED TOK_ASSERT %token TOK_POS_INDEXED TOK_NEG_INDEXED TOK_ASSERT
%type <ast> wire_type range non_opt_range expr basic_expr concat_list rvalue lvalue lvalue_concat_list %type <ast> wire_type range non_opt_range range_or_integer expr basic_expr concat_list rvalue lvalue lvalue_concat_list
%type <string> opt_label tok_prim_wrapper hierarchical_id %type <string> opt_label tok_prim_wrapper hierarchical_id
%type <boolean> opt_signed %type <boolean> opt_signed
%type <al> attr %type <al> attr
@ -360,6 +360,16 @@ range:
$$ = NULL; $$ = NULL;
}; };
range_or_integer:
range {
$$ = $1;
} |
TOK_INTEGER {
$$ = new AstNode(AST_RANGE);
$$->children.push_back(AstNode::mkconst_int(31, true));
$$->children.push_back(AstNode::mkconst_int(0, true));
};
module_body: module_body:
module_body module_body_stmt | module_body module_body_stmt |
/* empty */; /* empty */;
@ -380,7 +390,7 @@ task_func_decl:
current_function_or_task = NULL; current_function_or_task = NULL;
ast_stack.pop_back(); ast_stack.pop_back();
} | } |
TOK_FUNCTION opt_signed range TOK_ID ';' { TOK_FUNCTION opt_signed range_or_integer TOK_ID ';' {
current_function_or_task = new AstNode(AST_FUNCTION); current_function_or_task = new AstNode(AST_FUNCTION);
current_function_or_task->str = *$4; current_function_or_task->str = *$4;
ast_stack.back()->children.push_back(current_function_or_task); ast_stack.back()->children.push_back(current_function_or_task);