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44 lines
1.1 KiB
44 lines
1.1 KiB
name: duk_pcall_method
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proto: |
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duk_int_t duk_pcall_method(duk_context *ctx, duk_idx_t nargs);
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stack: |
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[ ... func! this! arg! ...! argN! ] -> [ ... retval! ] (if success, return value == 0)
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[ ... func! this! arg! ...! argN! ] -> [ ... err! ] (if failure, return value != 0)
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summary: |
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<p>Like <code><a href="#duk_pcall">duk_pcall()</a></code>, but the target function
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<code>func</code> is called with an explicit <code>this</code> binding given on the value
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stack.</p>
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example: |
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/* The target function here prints:
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*
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* this: 123
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* 2 3
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*
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* and returns 5.
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*/
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duk_int_t rc;
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duk_push_string(ctx, "function(x,y) { print('this:', this); "
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"print(x,y); return x+y; }");
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duk_eval(ctx); /* -> [ ... func ] */
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duk_push_int(ctx, 123);
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duk_push_int(ctx, 2);
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duk_push_int(ctx, 3);
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rc = duk_pcall_method(ctx, 2); /* [ ... func 123 2 3 ] -> [ 5 ] */
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if (rc == DUK_EXEC_SUCCESS) {
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printf("2+3=%ld\n", (long) duk_get_int(ctx, -1)); /* prints 5 */
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} else {
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printf("error: %s\n", duk_to_string(ctx, -1));
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}
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duk_pop(ctx);
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tags:
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- call
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- protected
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introduced: 1.0.0
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