make_map.c

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/*
 * This file is part of the Fun programming language.
 * https://fun-lang.xyz/
 *
 * Copyright 2025 Johannes Findeisen <you@hanez.org>
 * Licensed under the terms of the Apache-2.0 license.
 * https://opensource.org/license/apache-2-0
 */


case OP_MAKE_MAP: {
 int pairs = inst.operand;
 if (pairs < 0) {
 fprintf(stderr, "MAKE_MAP invalid pair count\n");
 exit(1);
 }
 Value m = make_map_empty();
 for (int i = 0; i < pairs; ++i) {
 Value val = pop_value(vm);
 Value key = pop_value(vm);
 if (key.type != VAL_STRING) {
 fprintf(stderr, "Map literal keys must be strings\n");
 exit(1);
 }
 if (!map_set(&m, key.s ? key.s : "", val)) {
 fprintf(stderr, "Map literal set failed\n");
 exit(1);
 }
 free_value(key);
 }
 push_value(vm, m);
 break;
}