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lang: replace stack-based parser with a recursive parser

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This commit is contained in:
max 🍓
2026-04-06 18:25:43 +01:00
parent 3a549aa6df
commit b904813cef
77 changed files with 2984 additions and 6499 deletions
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lang/ast/unit-package.c
-70
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@@ -1,62 +1,9 @@
#include "ctx.h"
#include "node.h"
#include <fx/ds/string.h>
#include <ivy/lang/lex.h>
#include <stdio.h>
struct unit_package_parser_state {
struct parser_state s_base;
int s_prev_token;
};
static struct token_parse_result parse_dot(
struct ivy_parser *ctx, struct ivy_token *tok)
{
struct unit_package_parser_state *state
= parser_get_state(ctx, struct unit_package_parser_state);
if (state->s_prev_token != IVY_TOK_IDENT) {
return PARSE_RESULT(IVY_ERR_BAD_SYNTAX, 0);
}
state->s_prev_token = IVY_SYM_DOT;
return PARSE_RESULT(IVY_OK, 0);
}
static struct token_parse_result parse_ident(
struct ivy_parser *ctx, struct ivy_token *tok)
{
struct unit_package_parser_state *state
= parser_get_state(ctx, struct unit_package_parser_state);
struct ivy_ast_unit_package_node *node
= (struct ivy_ast_unit_package_node *)(state->s_base.s_node);
if (state->s_prev_token == IVY_TOK_IDENT) {
return PARSE_RESULT(IVY_ERR_BAD_SYNTAX, 0);
}
fx_queue_push_back(&node->n_ident, &tok->t_entry);
state->s_prev_token = IVY_TOK_IDENT;
return PARSE_RESULT(IVY_OK, 0);
}
static struct token_parse_result parse_linefeed(
struct ivy_parser *ctx, struct ivy_token *tok)
{
struct unit_package_parser_state *state
= parser_get_state(ctx, struct unit_package_parser_state);
if (state->s_prev_token != IVY_TOK_IDENT) {
return PARSE_RESULT(IVY_ERR_BAD_SYNTAX, 0);
}
parser_pop_state(ctx, STATE_ADD_NODE_TO_PARENT);
return PARSE_RESULT(IVY_OK, 0);
}
static void to_string(struct ivy_ast_node *node, fx_string *str)
{
struct ivy_ast_unit_package_node *unit_package
@@ -83,24 +30,7 @@ static void to_string(struct ivy_ast_node *node, fx_string *str)
fx_string_append_cstr(str, ")");
}
static void init_state(struct ivy_parser *ctx, struct parser_state *sp, uintptr_t arg)
{
struct unit_package_parser_state *state
= (struct unit_package_parser_state *)sp;
state->s_prev_token = IVY_KW_PACKAGE;
}
struct ast_node_type unit_package_node_ops = {
.n_to_string = to_string,
.n_init_state = init_state,
.n_state_size = sizeof(struct unit_package_parser_state),
.n_node_size = sizeof(struct ivy_ast_unit_package_node),
.n_symbol_parsers = {
SYM_PARSER(DOT, parse_dot),
},
.n_token_parsers = {
TOK_PARSER(IDENT, parse_ident),
TOK_PARSER(LINEFEED, parse_linefeed),
}
};