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78 lines
2.1 KiB
78 lines
2.1 KiB
/*===
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duk_is_constructor_call: 1
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key='own_key', value='own_value'
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key='name', value='my prototype'
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duk_is_constructor_call: 1
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key='name', value='replacement'
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final top: 0
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rc=0, ret=undefined
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===*/
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int my_func_1(duk_context *ctx) {
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printf("duk_is_constructor_call: %d\n", duk_is_constructor_call(ctx));
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/* check 'this'; it should have internal prototype set below to
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* constructor's "prototype" property.
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*/
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duk_push_this(ctx);
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duk_push_string(ctx, "own_value");
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duk_put_prop_string(ctx, -2, "own_key");
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duk_enum(ctx, -1, 0 /*enum_flags*/);
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while (duk_next(ctx, -1, 1 /*get_value*/)) {
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printf("key='%s', value='%s'\n", duk_to_string(ctx, -2), duk_to_string(ctx, -1));
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duk_pop_2(ctx);
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}
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duk_pop(ctx);
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duk_pop(ctx);
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return 0;
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}
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int my_func_2(duk_context *ctx) {
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printf("duk_is_constructor_call: %d\n", duk_is_constructor_call(ctx));
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/* this replaces the freshly constructed object, and does NOT have
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* the same internal prototype as the fresh object.
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*/
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duk_eval_string(ctx, "({ name: 'replacement' })");
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return 1;
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}
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int test_raw(duk_context *ctx) {
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/* Create a constructor (function object). Its "prototype" property
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* controls the internal prototype of created instances.
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*/
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duk_push_c_function(ctx, my_func_1, 0);
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duk_eval_string(ctx, "({ name: 'my prototype' })");
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duk_put_prop_string(ctx, -2, "prototype");
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duk_new(ctx, 0); /* -> [ ret ] */
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duk_pop(ctx);
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/* If constructor returns an object, it replaces the fresh object
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* created for the constructor "this" binding.
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*/
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duk_push_c_function(ctx, my_func_2, 0);
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duk_eval_string(ctx, "({ name: 'my prototype' })");
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duk_put_prop_string(ctx, -2, "prototype");
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duk_new(ctx, 0); /* -> [ ret ] */
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duk_enum(ctx, -1, 0 /*enum_flags*/);
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while (duk_next(ctx, -1, 1 /*get_value*/)) {
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printf("key='%s', value='%s'\n", duk_to_string(ctx, -2), duk_to_string(ctx, -1));
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duk_pop_2(ctx);
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}
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duk_pop(ctx);
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duk_pop(ctx);
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printf("final top: %d\n", duk_get_top(ctx));
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return 0;
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}
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void test(duk_context *ctx) {
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int rc;
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rc = duk_safe_call(ctx, test_raw, 0, 1, DUK_INVALID_INDEX);
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printf("rc=%d, ret=%s\n", rc, duk_to_string(ctx, -1));
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}
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