index_set.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_INDEX_SET: {
 Value v = pop_value(vm);
 Value idx = pop_value(vm);
 Value container = pop_value(vm);
#ifdef FUN_DEBUG
 fprintf(stderr, "DEBUG INDEX_SET: container.type=%d idx.type=%d value.type=%d\n",
 container.type, idx.type, v.type);
#endif
 if (container.type == VAL_ARRAY) {
 if (idx.type != VAL_INT) {
 fprintf(stderr, "INDEX_SET index must be int for array\n");
 exit(1);
 }
 if (!array_set(&container, (int)idx.i, v)) {
 fprintf(stderr, "Runtime error: index out of range\n");
 exit(1);
 }
 free_value(container);
 free_value(idx);
 } else if (container.type == VAL_MAP) {
 if (idx.type != VAL_STRING) {
 fprintf(stderr, "INDEX_SET key must be string for map\n");
 exit(1);
 }
 if (!map_set(&container, idx.s ? idx.s : "", v)) {
 fprintf(stderr, "Runtime error: map set failed\n");
 exit(1);
 }
 free_value(container);
 free_value(idx);
 } else {
 fprintf(stderr, "Runtime type error: INDEX_SET expects array or map\n");
 exit(1);
 }
 break;
}