node.h: Avoid a magic number to represent excessed comma

`(ID)1` was assigned to NODE_ARGS#rest_arg for `{|x,| }`.
This change removes the magic number by introducing an explicit macro
variable for it: NODE_SPECIAL_EXCESSED_COMMA.
This commit is contained in:
Yusuke Endoh 2019-06-04 23:11:38 +09:00
Родитель 39eae6bf89
Коммит 0872ea5330
4 изменённых файлов: 12 добавлений и 8 удалений

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@ -1632,7 +1632,7 @@ iseq_set_arguments(rb_iseq_t *iseq, LINK_ANCHOR *const optargs, const NODE *cons
debugs(" - argc: %d\n", body->param.lead_num);
rest_id = args->rest_arg;
if (rest_id == 1) {
if (rest_id == NODE_SPECIAL_EXCESSED_COMMA) {
last_comma = 1;
rest_id = 0;
}

9
node.c
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@ -1010,7 +1010,14 @@ dump_node(VALUE buf, VALUE indent, int comment, const NODE * node)
F_INT(nd_ainfo->post_args_num, "count of mandatory post-arguments");
F_NODE(nd_ainfo->post_init, "initialization of post-arguments");
F_ID(nd_ainfo->first_post_arg, "first post argument");
F_ID(nd_ainfo->rest_arg, "rest argument");
F_CUSTOM1(nd_ainfo->rest_arg, "rest argument") {
if (node->nd_ainfo->rest_arg == NODE_SPECIAL_EXCESSED_COMMA) {
A("1 (excessed comma)");
}
else {
A_ID(node->nd_ainfo->rest_arg);
}
}
F_ID(nd_ainfo->block_arg, "block argument");
F_NODE(nd_ainfo->opt_args, "optional arguments");
F_NODE(nd_ainfo->kw_args, "keyword arguments");

1
node.h
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@ -383,6 +383,7 @@ typedef struct RNode {
#define NODE_REQUIRED_KEYWORD_P(node) ((node)->nd_value == NODE_SPECIAL_REQUIRED_KEYWORD)
#define NODE_SPECIAL_NO_NAME_REST ((NODE *)-1)
#define NODE_NAMED_REST_P(node) ((node) != NODE_SPECIAL_NO_NAME_REST)
#define NODE_SPECIAL_EXCESSED_COMMA ((ID)1)
VALUE rb_node_case_when_optimizable_literal(const NODE *const node);

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@ -325,10 +325,6 @@ static int parser_yyerror(struct parser_params*, const YYLTYPE *yylloc, const ch
#define lambda_beginning_p() (p->lex.lpar_beg == p->lex.paren_nest)
#ifndef RIPPER
static const ID excessed_comma = 1;
#endif
static enum yytokentype yylex(YYSTYPE*, YYLTYPE*, struct parser_params*);
#ifndef RIPPER
@ -3261,7 +3257,7 @@ block_param : f_arg ',' f_block_optarg ',' f_rest_arg opt_block_args_tail
{
/*%%%*/
/* magic number for rest_id in iseq_set_arguments() */
$$ = new_args(p, $1, Qnone, excessed_comma, Qnone, new_args_tail(p, Qnone, Qnone, Qnone, &@1), &@$);
$$ = new_args(p, $1, Qnone, NODE_SPECIAL_EXCESSED_COMMA, Qnone, new_args_tail(p, Qnone, Qnone, Qnone, &@1), &@$);
/*% %*/
/*% ripper: new_args(p, $1, Qnone, excessed_comma!, Qnone, new_args_tail(p, Qnone, Qnone, Qnone, NULL), NULL) %*/
}
@ -11134,7 +11130,7 @@ args_with_numbered(struct parser_params *p, NODE *args, int max_numparam)
if (max_numparam > 0) {
if (!args) args = new_args_tail(p, 0, 0, 0, 0);
args->nd_ainfo->pre_args_num = max_numparam;
args->nd_ainfo->rest_arg = excessed_comma;
args->nd_ainfo->rest_arg = NODE_SPECIAL_EXCESSED_COMMA;
}
return args;
}