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/*
* Copyright (c) 2025 Quinn Stephens and the OSMORA team.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS”
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdarg.h>
#include <stdio.h>
#include "lexer.h"
#include "log.h"
#include "parser.h"
#include "parser/types.h"
static void
tok_error(struct token *tok, const char *fmt, ...)
{
va_list args;
fprintf(stderr, "\033[1;97m%d:%d: \033[1;91merror: \033[0m", tok->line, tok->col);
va_start(args, fmt);
vfprintf(stderr, fmt, args);
va_end(args);
}
static bool
parse_declaration(struct lexer *lexer, struct token *tok)
{
struct type *typ;
/*
* TODO: Support custom types.
*/
if (!(tok->flags & TF_BUILTIN_TYPE)) {
tok_error(tok, "expected built-in type\n");
return false;
}
typ = types_find_builtin(tok->kind);
if (typ == NULL) {
return false;
}
lexer_next(lexer, tok);
if (tok->kind != TOK_IDENTIFIER) {
tok_error(tok, "expected identifier\n");
return false;
}
log_debug("name: \"%.*s\", type: { name: \"%s\", size: %lu }\n", tok->len, tok->pos, typ->name, typ->size);
lexer_next(lexer, tok);
return true;
}
bool
parser_parse(struct lexer *lexer)
{
struct token tok;
bool success;
log_debug("Parsing...\n");
if (!lexer_next(lexer, &tok)) {
log_error("failed to get first token\n");
return false;
}
while (tok.kind != TOK_EOF) {
if (tok.kind == TOK_UNKNOWN) {
tok_error(&tok, "unrecognized token\n");
return false;
}
if ((tok.flags & TF_BUILTIN_TYPE) || tok.kind == TOK_IDENTIFIER) {
success = parse_declaration(lexer, &tok);
}
if (!success) {
return false;
}
}
return true;
}
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