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lang: ast: implement control flags returned by parser functions

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max 🍓
2024-11-26 21:30:40 +00:00
parent 740df312a9
commit cd89c20beb
9 changed files with 177 additions and 98 deletions
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48
lang/ast/ctx.c
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@@ -1,7 +1,6 @@
#include "ctx.h"
#include "node.h"
#include "parse.h"
#include <blue/core/queue.h>
#include <ivy/lang/ast.h>
@@ -37,25 +36,36 @@ enum ivy_status ivy_parser_get_status(struct ivy_parser *parser)
enum ivy_status ivy_parser_push_token(
struct ivy_parser *parser, struct ivy_token *tok)
{
struct parser_state *state = parser_get_state_generic(parser);
if (!state) {
parser->p_status = IVY_ERR_INTERNAL_FAILURE;
return IVY_ERR_INTERNAL_FAILURE;
while (true) {
struct parser_state *state = parser_get_state_generic(parser);
if (!state) {
parser->p_status = IVY_ERR_INTERNAL_FAILURE;
break;
}
token_parse_function func = get_token_parser(state->s_node, tok);
if (func) {
struct token_parse_result result = func(parser, tok);
parser->p_status = result.r_status;
if (result.r_flags & PARSE_REPEAT_TOKEN) {
continue;
}
break;
}
if (tok->t_type == IVY_TOK_LINEFEED) {
ivy_token_destroy(tok);
parser->p_status = IVY_OK;
break;
}
parser->p_status = IVY_ERR_BAD_SYNTAX;
break;
}
token_parse_function func = get_token_parser(state->s_node, tok);
if (func) {
parser->p_status = func(parser, tok);
return parser->p_status;
}
if (tok->t_type == IVY_TOK_LINEFEED) {
ivy_token_destroy(tok);
return IVY_OK;
}
parser->p_status = IVY_ERR_BAD_SYNTAX;
return IVY_ERR_BAD_SYNTAX;
return parser->p_status;
}
struct parser_state *parser_get_state_generic(struct ivy_parser *parser)
@@ -92,12 +102,12 @@ struct parser_state *parser_push_state(
}
state->s_node = ast_node_create_with_size(type, node_type->n_node_size);
b_queue_push_back(&parser->p_state, &state->s_entry);
if (node_type->n_init_state) {
node_type->n_init_state(parser, state);
}
b_queue_push_back(&parser->p_state, &state->s_entry);
return state;
}