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/*
* Quark parser.
* Turns tokens into an AST (Abstract Syntax Tree).
* Copyright (c) 2023-2024, Quinn Stephens and the OSMORA team.
* Provided under the BSD 3-Clause license.
*/
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "debug.h"
#include "hashmap.h"
#include "parser/type.h"
#include "parser.h"
static void
add_builtin(struct hashmap *map, char *name, size_t size, int n_ptrs)
{
struct type *type;
size_t name_len;
name_len = strlen(name);
type = malloc(sizeof(struct type));
type->hashmap_entry.hash = hash_data(name, name_len);
type->name = name;
type->name_len = name_len;
type->size = size;
type->n_ptrs = n_ptrs;
hashmap_add(map, &type->hashmap_entry);
}
void
tok_error(struct token *tok, const char *fmt, ...)
{
va_list ap;
fprintf(stderr, "\033[1m%s:%d:%d: \033[31merror:\033[0m ", tok->fname, tok->line, tok->col);
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
}
void
tok_warn(struct token *tok, const char *fmt, ...)
{
va_list ap;
printf("\033[1m%s:%d:%d: \033[33mwarning:\033[0m ", tok->fname, tok->line, tok->col);
va_start(ap, fmt);
vprintf(fmt, ap);
va_end(ap);
}
void
parser_parse(struct parser *ctx)
{
debug("Parsing...\n");
next_token(ctx);
while (ctx->tok.kind != TK_EOF) {
switch (ctx->tok.kind) {
case TK_TYPE:
parse_type(ctx);
break;
default:
tok_error(&ctx->tok, "unexpected \"%.*s\"\n", (int)ctx->tok.len, ctx->tok.pos);
next_token(ctx);
break;
}
}
}
void
parser_init(struct parser *ctx, char *source)
{
debug("Initializing parser...\n");
lexer_init(&ctx->lexer, source);
add_builtin(ctx->types, "any", 0, 0);
add_builtin(ctx->types, "uint", sizeof(void*), 0);
add_builtin(ctx->types, "uint64", 8, 0);
add_builtin(ctx->types, "uint32", 4, 0);
add_builtin(ctx->types, "uint16", 2, 0);
add_builtin(ctx->types, "uint8", 1, 0);
}
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