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lang: ast: move recipient tracking from msg handler node to selector node

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This commit is contained in:
max 🍓
2024-11-28 16:58:01 +00:00
parent 4304b94491
commit 2a33ae44a5
4 changed files with 131 additions and 13 deletions
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98
lang/ast/selector.c
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@@ -4,6 +4,7 @@
#include <blue/object/string.h>
#include <ivy/lang/lex.h>
#include <stdio.h>
struct selector_parser_state {
struct parser_state s_base;
@@ -19,6 +20,40 @@ struct selector_parser_state {
} \
} while (0)
static struct token_parse_result parse_plus(
struct ivy_parser *ctx, struct ivy_token *tok)
{
struct selector_parser_state *state
= parser_get_state(ctx, struct selector_parser_state);
struct ivy_ast_selector_node *sel
= (struct ivy_ast_selector_node *)state->s_base.s_node;
if (sel->n_recipient != IVY_SELECTOR_RECIPIENT_NONE) {
return PARSE_RESULT(IVY_ERR_BAD_SYNTAX, 0);
}
sel->n_recipient = IVY_SELECTOR_RECIPIENT_CLASS;
return PARSE_RESULT(IVY_OK, 0);
}
static struct token_parse_result parse_hyphen(
struct ivy_parser *ctx, struct ivy_token *tok)
{
struct selector_parser_state *state
= parser_get_state(ctx, struct selector_parser_state);
struct ivy_ast_selector_node *sel
= (struct ivy_ast_selector_node *)state->s_base.s_node;
if (sel->n_recipient != IVY_SELECTOR_RECIPIENT_NONE) {
return PARSE_RESULT(IVY_ERR_BAD_SYNTAX, 0);
}
sel->n_recipient = IVY_SELECTOR_RECIPIENT_OBJECT;
return PARSE_RESULT(IVY_OK, 0);
}
static struct token_parse_result parse_ident(
struct ivy_parser *ctx, struct ivy_token *tok)
{
@@ -166,6 +201,66 @@ static struct token_parse_result parse_other(
return PARSE_RESULT(IVY_ERR_BAD_SYNTAX, 0);
}
static void print(struct ivy_ast_node *node)
{
struct ivy_ast_selector_node *sel = (struct ivy_ast_selector_node *)node;
printf("%s [", ivy_ast_node_type_to_string(node->n_type));
switch (sel->n_recipient) {
case IVY_SELECTOR_RECIPIENT_CLASS:
fputc('+', stdout);
break;
case IVY_SELECTOR_RECIPIENT_OBJECT:
fputc('-', stdout);
break;
default:
fputc('?', stdout);
break;
}
if (sel->n_msg_name) {
printf("%s", sel->n_msg_name->t_str);
}
if (sel->n_msg_name && !b_queue_empty(&sel->n_arg_labels)) {
fputc('(', stdout);
}
b_queue_iterator label_it = {0};
b_queue_iterator name_it = {0};
b_queue_iterator_begin(&sel->n_arg_labels, &label_it);
b_queue_iterator_begin(&sel->n_arg_names, &name_it);
int i = 0;
while (b_queue_iterator_is_valid(&label_it)
&& b_queue_iterator_is_valid(&name_it)) {
if (i > 0) {
fputc(' ', stdout);
}
struct ivy_token *label
= b_unbox(struct ivy_token, label_it.entry, t_entry);
struct ivy_token *name
= b_unbox(struct ivy_token, name_it.entry, t_entry);
if (label && name) {
printf("%s:%s", label->t_str, name->t_str);
}
i++;
b_queue_iterator_next(&label_it);
b_queue_iterator_next(&name_it);
}
if (sel->n_msg_name && !b_queue_empty(&sel->n_arg_labels)) {
fputc(')', stdout);
}
fputs("]\n", stdout);
}
static void init_state(struct ivy_parser *ctx, struct parser_state *sp)
{
struct selector_parser_state *state = (struct selector_parser_state *)sp;
@@ -175,6 +270,7 @@ static void init_state(struct ivy_parser *ctx, struct parser_state *sp)
struct ast_node_type selector_node_ops = {
.n_init_state = init_state,
.n_print = print,
.n_state_size = sizeof(struct selector_parser_state),
.n_node_size = sizeof(struct ivy_ast_selector_node),
.n_token_parsers = {
@@ -183,6 +279,8 @@ struct ast_node_type selector_node_ops = {
TOK_PARSER_FALLBACK(parse_other),
},
.n_symbol_parsers = {
SYM_PARSER(PLUS, parse_plus),
SYM_PARSER(HYPHEN, parse_hyphen),
SYM_PARSER(LEFT_PAREN, parse_left_paren),
SYM_PARSER(RIGHT_PAREN, parse_right_paren),
SYM_PARSER(PIPE, parse_pipe),