parse_statement_bitfield.c File Reference

#include "ast.h"
#include "macro_utils.h"
#include "module.h"
#include "parser.h"

Include dependency graph for parse_statement_bitfield.c:

Go to the source code of this file.

Functions
unsigned int	parse_statement_bitfield (module_t *module, ast_node_t *parent, token_t *token)
	Parse a bitfield statement adding it as a children on parent AST node.

Function Documentation

parse_statement_bitfield()

unsigned int parse_statement_bitfield	(	module_t *	module,
		ast_node_t *	parent,
		token_t *	token )

Parse a bitfield statement adding it as a children on parent AST node.

Parameters

module	The module where the AST is.
parent	The AST node parent for the statement.
token	The token where to start parsing the statement.

Returns

The number of tokens used on the statement.

Definition at line 10 of file parse_statement_bitfield.c.

{
  ast_node_t* node_statement = ast_add_children(parent, NT_STATEMENT, token);
  token_t* tkid = token + 1;
 
  if (tkid->type != TK_IDENTIFIER) {
    module_add_error(
      module,
      tkid->line,
      tkid->column,
      tkid->lexeme.length,
      "Expected an identifier here. Example: bitfield Name[4]"
    );
 
    return 1;
  }
 
  ast_add_children(node_statement, NT_IDENTIFIER, tkid);
  unsigned int ntokens = 2 + parse_size_spec(module, node_statement, token + 2, "bitfield Name[4]");
 
  token_t* tkopen_braces = token + ntokens;
 
  if (tkopen_braces->type == TK_OPEN_BRACES) {
    ast_node_t* body = ast_add_children(node_statement, NT_BITFIELD_BODY, tkopen_braces);
    ntokens += 1 + _parse_bitfield_body(module, body, tkopen_braces + 1);
  }
 
  return ntokens;
}