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78 lines
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/*===
this binding: 'my this binding'
result=33
final top: 0
rc=0, result='undefined'
this binding: 'my this binding'
rc=1, result='TypeError: argument 2 is not a number'
===*/
int my_adder(duk_context *ctx) {
int i, n;
double res = 0.0;
duk_push_this(ctx);
printf("this binding: '%s'\n", duk_to_string(ctx, -1));
duk_pop(ctx);
n = duk_get_top(ctx);
for (i = 0; i < n; i++) {
if (!duk_is_number(ctx, i)) {
duk_error(ctx, DUK_ERR_TYPE_ERROR, "argument %d is not a number", i);
}
res += duk_get_number(ctx, i);
}
duk_push_number(ctx, res);
return 1;
}
int test_1(duk_context *ctx) {
duk_set_top(ctx, 0);
duk_push_c_function(ctx, my_adder, 3 /*nargs*/);
duk_push_string(ctx, "my this binding");
duk_push_int(ctx, 10);
duk_push_int(ctx, 11);
duk_push_int(ctx, 12);
duk_push_int(ctx, 13); /* clipped */
duk_push_int(ctx, 14); /* clipped */
duk_call_method(ctx, 5);
printf("result=%s\n", duk_to_string(ctx, -1));
duk_pop(ctx);
printf("final top: %d\n", duk_get_top(ctx));
return 0;
}
int test_2(duk_context *ctx) {
duk_set_top(ctx, 0);
duk_push_c_function(ctx, my_adder, 3 /*nargs*/);
duk_push_string(ctx, "my this binding");
duk_push_int(ctx, 10);
duk_push_int(ctx, 11);
duk_push_string(ctx, "foo"); /* causes error */
duk_push_int(ctx, 13); /* clipped */
duk_push_int(ctx, 14); /* clipped */
duk_call_method(ctx, 5);
printf("result=%s\n", duk_to_string(ctx, -1));
duk_pop(ctx);
printf("final top: %d\n", duk_get_top(ctx));
return 0;
}
void test(duk_context *ctx) {
int rc;
rc = duk_safe_call(ctx, test_1, 0, 1);
printf("rc=%d, result='%s'\n", rc, duk_to_string(ctx, -1));
duk_pop(ctx);
rc = duk_safe_call(ctx, test_2, 0, 1);
printf("rc=%d, result='%s'\n", rc, duk_to_string(ctx, -1));
duk_pop(ctx);
}