mirror of
https://github.com/jerryscript-project/jerryscript.git
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cfdb5eddb3
Added a unit test for the jerryx_arg_js_iterator_restore function. Added the specification to the documentation. JerryScript-DCO-1.0-Signed-off-by: Timothy Harvey t-harvey@ti.com
79 lines
2.5 KiB
C
79 lines
2.5 KiB
C
/* Copyright JS Foundation and other contributors, http://js.foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "arg-internal.h"
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#include "jerryscript-ext/arg.h"
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#include "jerryscript.h"
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/**
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* Pop the current JS argument from the iterator.
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* It will change the index and js_arg_p value in the iterator.
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*
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* @return the current JS argument.
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*/
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jerry_value_t
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jerryx_arg_js_iterator_pop (jerryx_arg_js_iterator_t *js_arg_iter_p) /**< the JS arg iterator */
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{
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return (js_arg_iter_p->js_arg_idx++ < js_arg_iter_p->js_arg_cnt ? *js_arg_iter_p->js_arg_p++
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: jerry_create_undefined ());
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} /* jerryx_arg_js_iterator_pop */
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/**
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* Restore the previous JS argument from the iterator.
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* It will change the index and js_arg_p value in the iterator.
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*
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* @return the restored (now current) JS argument.
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*/
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jerry_value_t
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jerryx_arg_js_iterator_restore (jerryx_arg_js_iterator_t *js_arg_iter_p) /**< the JS arg iterator */
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{
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if (js_arg_iter_p->js_arg_idx == 0)
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{
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return jerry_create_undefined ();
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}
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--js_arg_iter_p->js_arg_idx;
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--js_arg_iter_p->js_arg_p;
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return *js_arg_iter_p->js_arg_p;
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} /* jerryx_arg_js_iterator_restore */
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/**
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* Get the current JS argument from the iterator.
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*
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* Note:
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* Unlike jerryx_arg_js_iterator_pop, it will not change index and
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* js_arg_p value in the iterator.
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*
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* @return the current JS argument.
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*/
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jerry_value_t
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jerryx_arg_js_iterator_peek (jerryx_arg_js_iterator_t *js_arg_iter_p) /**< the JS arg iterator */
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{
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return (js_arg_iter_p->js_arg_idx < js_arg_iter_p->js_arg_cnt ? *js_arg_iter_p->js_arg_p
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: jerry_create_undefined ());
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} /* jerryx_arg_js_iterator_peek */
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/**
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* Get the index of the current JS argument
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*
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* @return the index
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*/
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jerry_length_t
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jerryx_arg_js_iterator_index (jerryx_arg_js_iterator_t *js_arg_iter_p) /**< the JS arg iterator */
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{
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return js_arg_iter_p->js_arg_idx;
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} /* jerryx_arg_js_iterator_index */
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