100 lines
2.6 KiB
C
100 lines
2.6 KiB
C
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/*
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* 'Reflect' built-in (ES2016 Section 26.1)
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* http://www.ecma-international.org/ecma-262/7.0/#sec-reflect-object
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*
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* Many Reflect built-in functions are provided by shared helpers in
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* duk_bi_object.c or duk_bi_function.c.
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*/
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#include "duk_internal.h"
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#if defined(DUK_USE_REFLECT_BUILTIN)
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DUK_INTERNAL duk_ret_t duk_bi_reflect_object_delete_property(duk_hthread *thr) {
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duk_tval *tv_obj;
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duk_tval *tv_key;
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duk_bool_t ret;
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DUK_ASSERT_TOP(thr, 2);
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(void) duk_require_hobject(thr, 0);
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(void) duk_to_string(thr, 1);
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/* [ target key ] */
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DUK_ASSERT(thr != NULL);
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tv_obj = DUK_GET_TVAL_POSIDX(thr, 0);
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tv_key = DUK_GET_TVAL_POSIDX(thr, 1);
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ret = duk_hobject_delprop(thr, tv_obj, tv_key, 0 /*throw_flag*/);
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duk_push_boolean(thr, ret);
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return 1;
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}
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DUK_INTERNAL duk_ret_t duk_bi_reflect_object_get(duk_hthread *thr) {
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duk_tval *tv_obj;
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duk_tval *tv_key;
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duk_idx_t nargs;
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DUK_ASSERT(thr != NULL);
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nargs = duk_get_top_require_min(thr, 2 /*min_top*/);
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(void) duk_require_hobject(thr, 0);
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(void) duk_to_string(thr, 1);
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if (nargs >= 3 && !duk_strict_equals(thr, 0, 2)) {
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/* XXX: [[Get]] receiver currently unsupported */
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DUK_ERROR_UNSUPPORTED(thr);
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DUK_WO_NORETURN(return 0;);
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}
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/* [ target key receiver? ...? ] */
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tv_obj = DUK_GET_TVAL_POSIDX(thr, 0);
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tv_key = DUK_GET_TVAL_POSIDX(thr, 1);
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(void) duk_hobject_getprop(thr, tv_obj, tv_key); /* This could also be a duk_get_prop(). */
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return 1;
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}
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DUK_INTERNAL duk_ret_t duk_bi_reflect_object_has(duk_hthread *thr) {
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duk_tval *tv_obj;
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duk_tval *tv_key;
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duk_bool_t ret;
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DUK_ASSERT(thr != NULL);
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DUK_ASSERT_TOP(thr, 2);
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(void) duk_require_hobject(thr, 0);
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(void) duk_to_string(thr, 1);
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/* [ target key ] */
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tv_obj = DUK_GET_TVAL_POSIDX(thr, 0);
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tv_key = DUK_GET_TVAL_POSIDX(thr, 1);
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ret = duk_hobject_hasprop(thr, tv_obj, tv_key);
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duk_push_boolean(thr, ret);
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return 1;
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}
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DUK_INTERNAL duk_ret_t duk_bi_reflect_object_set(duk_hthread *thr) {
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duk_tval *tv_obj;
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duk_tval *tv_key;
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duk_tval *tv_val;
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duk_idx_t nargs;
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duk_bool_t ret;
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DUK_ASSERT(thr != NULL);
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nargs = duk_get_top_require_min(thr, 3 /*min_top*/);
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(void) duk_require_hobject(thr, 0);
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(void) duk_to_string(thr, 1);
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if (nargs >= 4 && !duk_strict_equals(thr, 0, 3)) {
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/* XXX: [[Set]] receiver currently unsupported */
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DUK_ERROR_UNSUPPORTED(thr);
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DUK_WO_NORETURN(return 0;);
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}
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/* [ target key value receiver? ...? ] */
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tv_obj = DUK_GET_TVAL_POSIDX(thr, 0);
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tv_key = DUK_GET_TVAL_POSIDX(thr, 1);
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tv_val = DUK_GET_TVAL_POSIDX(thr, 2);
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ret = duk_hobject_putprop(thr, tv_obj, tv_key, tv_val, 0 /*throw_flag*/);
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duk_push_boolean(thr, ret);
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return 1;
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}
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#endif /* DUK_USE_REFLECT_BUILTIN */
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