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74 lines
1.8 KiB
74 lines
1.8 KiB
/*
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* Test finalizer rescue when the value being finalized/rescued becomes
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* unreachable as part of call handling unwind.
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*/
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/*===
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*** test_1 (duk_safe_call)
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calling
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finalizer, rescuing object {"name":"my object"}
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returned
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calling
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finalizer, rescuing object {"name":"my object"}
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returned
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final top: 0
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==> rc=0, result='undefined'
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finalizer, rescuing object {"name":"my object"}
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===*/
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static duk_ret_t my_func(duk_context *ctx) {
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(void) ctx;
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return 0;
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}
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static duk_ret_t test_1(duk_context *ctx, void *udata) {
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(void) udata;
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duk_eval_string_noresult(ctx,
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"this.myFinalizer = function myfin(o) {\n"
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" print('finalizer, rescuing object', JSON.stringify(o));\n"
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" var global = new Function('return this')();\n"
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" global.rescued = o;\n"
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"}\n"
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);
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/* First call; object gets finalized when call returns and call
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* handling does a duk_set_top() call. The object is rescued and
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* later reused.
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*/
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duk_push_c_function(ctx, my_func, 3 /*nargs*/);
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duk_push_null(ctx);
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duk_eval_string(ctx,
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"(function () {\n"
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" var res = { name: 'my object' };\n"
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" Duktape.fin(res, myFinalizer);\n"
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" return res;\n"
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"})()\n");
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duk_push_null(ctx);
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printf("calling\n");
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duk_call(ctx, 3);
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printf("returned\n");
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duk_pop(ctx);
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/* Object is reused for another call, and rescued again. */
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duk_push_c_function(ctx, my_func, 3 /*nargs*/);
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duk_push_null(ctx);
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duk_eval_string(ctx, "rescued");
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duk_eval_string_noresult(ctx, "rescued = null;");
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duk_push_null(ctx);
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printf("calling\n");
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duk_call(ctx, 3);
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printf("returned\n");
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duk_pop(ctx);
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printf("final top: %ld\n", (long) 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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TEST_SAFE_CALL(test_1);
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/* When we return the object is finalized once more as part of
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* heap destruction but no longer rescued.
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*/
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}
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