force-refresh / vendor / zordius / lightncandy / src / Runtime.php

Runtime.php in Force Refresh 2.1.5, at vendor/zordius/lightncandy/src/Runtime.php

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1	<?php
2	/*
3
4	MIT License
5	Copyright 2013-2020 Zordius Chen. All Rights Reserved.
6	Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
7	The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
8	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
9
10	Origin: https://github.com/zordius/lightncandy
11	*/
12
13	/**
14	* file to support LightnCandy compiled PHP runtime
15	*
16	* @package LightnCandy
17	* @author Zordius <[email protected]>
18	*/
19
20	namespace LightnCandy;
21
22	/**
23	* LightnCandy class for Object property access on a string.
24	*/
25	class StringObject
26	{
27	protected $string;
28
29	public function __construct($string)
30	{
31	$this->string = $string;
32	}
33
34	public function __toString()
35	{
36	return strval($this->string);
37	}
38	}
39
40	/**
41	* LightnCandy class for compiled PHP runtime.
42	*/
43	class Runtime extends Encoder
44	{
45	const DEBUG_ERROR_LOG = 1;
46	const DEBUG_ERROR_EXCEPTION = 2;
47	const DEBUG_TAGS = 4;
48	const DEBUG_TAGS_ANSI = 12;
49	const DEBUG_TAGS_HTML = 20;
50
51	/**
52	* Output debug info.
53	*
54	* @param string $v expression
55	* @param string $f runtime function name
56	* @param array<string,array\|string\|integer> $cx render time context for lightncandy
57	*
58	* @expect '{{123}}' when input '123', 'miss', array('flags' => array('debug' => Runtime::DEBUG_TAGS), 'runtime' => 'LightnCandy\\Runtime'), ''
59	* @expect '<!--MISSED((-->{{#123}}<!--))--><!--SKIPPED--><!--MISSED((-->{{/123}}<!--))-->' when input '123', 'wi', array('flags' => array('debug' => Runtime::DEBUG_TAGS_HTML), 'runtime' => 'LightnCandy\\Runtime'), false, null, false, function () {return 'A';}
60	*/
61	public static function debug($v, $f, $cx)
62	{
63	// Build array of reference for call_user_func_array
64	$P = func_get_args();
65	$params = array();
66	for ($i=2;$i<count($P);$i++) {
67	$params[] = &$P[$i];
68	}
69	$r = call_user_func_array((isset($cx['funcs'][$f]) ? $cx['funcs'][$f] : "{$cx['runtime']}::$f"), $params);
70
71	if ($cx['flags']['debug'] & static::DEBUG_TAGS) {
72	$ansi = $cx['flags']['debug'] & (static::DEBUG_TAGS_ANSI - static::DEBUG_TAGS);
73	$html = $cx['flags']['debug'] & (static::DEBUG_TAGS_HTML - static::DEBUG_TAGS);
74	$cs = ($html ? (($r !== '') ? '<!!--OK((-->' : '<!--MISSED((-->') : '')
75	. ($ansi ? (($r !== '') ? "\033[0;32m" : "\033[0;31m") : '');
76	$ce = ($html ? '<!--))-->' : '')
77	. ($ansi ? "\033[0m" : '');
78	switch ($f) {
79	case 'sec':
80	case 'wi':
81	if ($r == '') {
82	if ($ansi) {
83	$r = "\033[0;33mSKIPPED\033[0m";
84	}
85	if ($html) {
86	$r = '<!--SKIPPED-->';
87	}
88	}
89	return "$cs{{#{$v}}}$ce{$r}$cs{{/{$v}}}$ce";
90	default:
91	return "$cs{{{$v}}}$ce";
92	}
93	} else {
94	return $r;
95	}
96	}
97
98	/**
99	* Handle error by error_log or throw exception.
100	*
101	* @param array<string,array\|string\|integer> $cx render time context for lightncandy
102	* @param string $err error message
103	*
104	* @throws \Exception
105	*/
106	public static function err($cx, $err)
107	{
108	if ($cx['flags']['debug'] & static::DEBUG_ERROR_LOG) {
109	error_log($err);
110	return;
111	}
112	if ($cx['flags']['debug'] & static::DEBUG_ERROR_EXCEPTION) {
113	throw new \Exception($err);
114	}
115	}
116
117	/**
118	* Handle missing data error.
119	*
120	* @param array<string,array\|string\|integer> $cx render time context for lightncandy
121	* @param string $v expression
122	*/
123	public static function miss($cx, $v)
124	{
125	static::err($cx, "Runtime: $v does not exist");
126	}
127
128	/**
129	* For {{log}} .
130	*
131	* @param array<string,array\|string\|integer> $cx render time context for lightncandy
132	* @param string $v expression
133	*/
134	public static function lo($cx, $v)
135	{
136	error_log(var_export($v[0], true));
137	return '';
138	}
139
140	/**
141	* Resursive lookup variable and helpers. This is slow and will only be used for instance property or method detection or lambdas.
142	*
143	* @param array<string,array\|string\|integer> $cx render time context for lightncandy
144	* @param array\|string\|boolean\|integer\|double\|null $in current context
145	* @param array<array\|string\|integer> $base current variable context
146	* @param array<string\|integer> $path array of names for path
147	* @param array\|null $args extra arguments for lambda
148	*
149	* @return null\|string Return the value or null when not found
150	*
151	* @expect null when input array('scopes' => array(), 'flags' => array('prop' => 0, 'method' => 0, 'mustlok' => 0)), null, 0, array('a', 'b')
152	* @expect 3 when input array('scopes' => array(), 'flags' => array('prop' => 0, 'method' => 0), 'mustlok' => 0), null, array('a' => array('b' => 3)), array('a', 'b')
153	* @expect null when input array('scopes' => array(), 'flags' => array('prop' => 0, 'method' => 0, 'mustlok' => 0)), null, (Object) array('a' => array('b' => 3)), array('a', 'b')
154	* @expect 3 when input array('scopes' => array(), 'flags' => array('prop' => 1, 'method' => 0, 'mustlok' => 0)), null, (Object) array('a' => array('b' => 3)), array('a', 'b')
155	*/
156	public static function v($cx, $in, $base, $path, $args = null)
157	{
158	$count = count($cx['scopes']);
159	$plen = count($path);
160	while ($base) {
161	$v = $base;
162	foreach ($path as $i => $name) {
163	if (is_array($v)) {
164	if (isset($v[$name])) {
165	$v = $v[$name];
166	continue;
167	}
168	if (($i === $plen - 1) && ($name === 'length')) {
169	return count($v);
170	}
171	}
172	if (is_object($v)) {
173	if ($cx['flags']['prop'] && !($v instanceof \Closure) && isset($v->$name)) {
174	$v = $v->$name;
175	continue;
176	}
177	if ($cx['flags']['method'] && is_callable(array($v, $name))) {
178	try {
179	$v = $v->$name();
180	continue;
181	} catch (\BadMethodCallException $e) {}
182	}
183	if ($v instanceof \ArrayAccess) {
184	if (isset($v[$name])) {
185	$v = $v[$name];
186	continue;
187	}
188	}
189	}
190	if ($cx['flags']['mustlok']) {
191	unset($v);
192	break;
193	}
194	return null;
195	}
196	if (isset($v)) {
197	if ($v instanceof \Closure) {
198	if ($cx['flags']['mustlam'] \|\| $cx['flags']['lambda']) {
199	if (!$cx['flags']['knohlp'] && !is_null($args)) {
200	$A = $args ? $args[0] : array();
201	$A[] = array('hash' => is_array( $args ) ? $args[1] : null, '_this' => $in);
202	} else {
203	$A = array($in);
204	}
205	$v = call_user_func_array($v, $A);
206	}
207	}
208	return $v;
209	}
210	$count--;
211	switch ($count) {
212	case -1:
213	$base = $cx['sp_vars']['root'];
214	break;
215	case -2:
216	return null;
217	default:
218	$base = $cx['scopes'][$count];
219	}
220	}
221	if ($args) {
222	static::err($cx, 'Can not find helper or lambda: "' . implode('.', $path) . '" !');
223	}
224	}
225
226	/**
227	* For {{#if}} .
228	*
229	* @param array<string,array\|string\|integer> $cx render time context for lightncandy
230	* @param array<array\|string\|integer>\|string\|integer\|null $v value to be tested
231	* @param boolean $zero include zero as true
232	*
233	* @return boolean Return true when the value is not null nor false.
234	*
235	* @expect false when input array(), null, false
236	* @expect false when input array(), 0, false
237	* @expect true when input array(), 0, true
238	* @expect false when input array(), false, false
239	* @expect true when input array(), true, false
240	* @expect true when input array(), 1, false
241	* @expect false when input array(), '', false
242	* @expect false when input array(), array(), false
243	* @expect true when input array(), array(''), false
244	* @expect true when input array(), array(0), false
245	*/
246	public static function ifvar($cx, $v, $zero)
247	{
248	return ($v !== null) && ($v !== false) && ($zero \|\| ($v !== 0) && ($v !== 0.0)) && ($v !== '') && (is_array($v) ? (count($v) > 0) : true);
249	}
250
251	/**
252	* For {{^var}} .
253	*
254	* @param array<string,array\|string\|integer> $cx render time context for lightncandy
255	* @param array<array\|string\|integer>\|string\|integer\|null $v value to be tested
256	*
257	* @return boolean Return true when the value is not null nor false.
258	*
259	* @expect true when input array(), null
260	* @expect false when input array(), 0
261	* @expect true when input array(), false
262	* @expect false when input array(), 'false'
263	* @expect true when input array(), array()
264	* @expect false when input array(), array('1')
265	*/
266	public static function isec($cx, $v)
267	{
268	return ($v === null) \|\| ($v === false) \|\| (is_array($v) && (count($v) === 0));
269	}
270
271	/**
272	* For {{var}} .
273	*
274	* @param array<string,array\|string\|integer> $cx render time context for lightncandy
275	* @param array<array\|string\|integer>\|string\|integer\|null $var value to be htmlencoded
276	*
277	* @return string The htmlencoded value of the specified variable
278	*
279	* @expect 'a' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a'
280	* @expect 'a&b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a&b'
281	* @expect 'a'b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a\'b'
282	* @expect 'a&b' when input null, new \LightnCandy\SafeString('a&b')
283	*/
284	public static function enc($cx, $var)
285	{
286	// Use full namespace classname for more specific code export/match in Exporter.php replaceSafeString.
287	if ($var instanceof \LightnCandy\SafeString) {
288	return (string)$var;
289	}
290
291	return htmlspecialchars(static::raw($cx, $var), ENT_QUOTES, 'UTF-8');
292	}
293
294	/**
295	* For {{var}} , do html encode just like handlebars.js .
296	*
297	* @param array<string,array\|string\|integer> $cx render time context for lightncandy
298	* @param array<array\|string\|integer>\|string\|integer\|null $var value to be htmlencoded
299	*
300	* @return string The htmlencoded value of the specified variable
301	*
302	* @expect 'a' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a'
303	* @expect 'a&b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a&b'
304	* @expect 'a'b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a\'b'
305	* @expect '`a'b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), '`a\'b'
306	*/
307	public static function encq($cx, $var)
308	{
309	// Use full namespace classname for more specific code export/match in Exporter.php replaceSafeString.
310	if ($var instanceof \LightnCandy\SafeString) {
311	return (string)$var;
312	}
313
314	return str_replace(array('=', '`', '''), array('=', '`', '''), htmlspecialchars(static::raw($cx, $var), ENT_QUOTES, 'UTF-8'));
315	}
316
317	/**
318	* For {{#var}} or {{#each}} .
319	*
320	* @param array<string,array\|string\|integer> $cx render time context for lightncandy
321	* @param array<array\|string\|integer>\|string\|integer\|null $v value for the section
322	* @param array<string>\|null $bp block parameters
323	* @param array<array\|string\|integer>\|string\|integer\|null $in input data with current scope
324	* @param boolean $each true when rendering #each
325	* @param Closure $cb callback function to render child context
326	* @param Closure\|null $else callback function to render child context when {{else}}
327	*
328	* @return string The rendered string of the section
329	*
330	* @expect '' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'mustsec' => 0, 'lambda' => 0)), false, null, false, false, function () {return 'A';}
331	* @expect '' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'mustsec' => 0, 'lambda' => 0)), null, null, null, false, function () {return 'A';}
332	* @expect 'A' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'mustsec' => 0, 'lambda' => 0)), true, null, true, false, function () {return 'A';}
333	* @expect 'A' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'mustsec' => 0, 'lambda' => 0)), 0, null, 0, false, function () {return 'A';}
334	* @expect '-a=' when input array('scopes' => array(), 'flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array('a'), null, array('a'), false, function ($c, $i) {return "-$i=";}
335	* @expect '-a=-b=' when input array('scopes' => array(), 'flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array('a','b'), null, array('a','b'), false, function ($c, $i) {return "-$i=";}
336	* @expect '' when input array('scopes' => array(), 'flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 'abc', null, 'abc', true, function ($c, $i) {return "-$i=";}
337	* @expect '-b=' when input array('scopes' => array(), 'flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array('a' => 'b'), null, array('a' => 'b'), true, function ($c, $i) {return "-$i=";}
338	* @expect 'b' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'mustsec' => 0, 'lambda' => 0)), 'b', null, 'b', false, function ($c, $i) {return print_r($i, true);}
339	* @expect '1' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'mustsec' => 0, 'lambda' => 0)), 1, null, 1, false, function ($c, $i) {return print_r($i, true);}
340	* @expect '0' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'mustsec' => 0, 'lambda' => 0)), 0, null, 0, false, function ($c, $i) {return print_r($i, true);}
341	* @expect '{"b":"c"}' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array('b' => 'c'), null, array('b' => 'c'), false, function ($c, $i) {return json_encode($i);}
342	* @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array(), null, 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';}
343	* @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array(), null, 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';}
344	* @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), false, null, 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';}
345	* @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'mustsec' => 0, 'lambda' => 0)), false, null, 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';}
346	* @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), '', null, 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';}
347	* @expect 'cb' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'mustsec' => 0, 'lambda' => 0)), '', null, 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';}
348	* @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 0, null, 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';}
349	* @expect 'cb' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'mustsec' => 0, 'lambda' => 0)), 0, null, 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';}
350	* @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), new stdClass, null, 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';}
351	* @expect 'cb' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'mustsec' => 0, 'lambda' => 0)), new stdClass, null, 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';}
352	* @expect '268' when input array('scopes' => array(), 'flags' => array('spvar' => 1, 'mustlam' => 0, 'lambda' => 0), 'sp_vars'=>array('root' => 0)), array(1,3,4), null, 0, false, function ($c, $i) {return $i * 2;}
353	* @expect '038' when input array('scopes' => array(), 'flags' => array('spvar' => 1, 'mustlam' => 0, 'lambda' => 0), 'sp_vars'=>array('root' => 0)), array(1,3,'a'=>4), null, 0, true, function ($c, $i) {return $i * $c['sp_vars']['index'];}
354	*/
355	public static function sec($cx, $v, $bp, $in, $each, $cb, $else = null)
356	{
357	$push = ($in !== $v) \|\| $each;
358
359	$isAry = is_array($v) \|\| ($v instanceof \ArrayObject);
360	$isTrav = $v instanceof \Traversable;
361	$loop = $each;
362	$keys = null;
363	$last = null;
364	$isObj = false;
365
366	if ($isAry && $else !== null && count($v) === 0) {
367	return $else($cx, $in);
368	}
369
370	// #var, detect input type is object or not
371	if (!$loop && $isAry) {
372	$keys = array_keys($v);
373	$loop = (count(array_diff_key($v, array_keys($keys))) == 0);
374	$isObj = !$loop;
375	}
376
377	if (($loop && $isAry) \|\| $isTrav) {
378	if ($each && !$isTrav) {
379	// Detect input type is object or not when never done once
380	if ($keys == null) {
381	$keys = array_keys($v);
382	$isObj = (count(array_diff_key($v, array_keys($keys))) > 0);
383	}
384	}
385	$ret = array();
386	if ($push) {
387	$cx['scopes'][] = $in;
388	}
389	$i = 0;
390	if ($cx['flags']['spvar']) {
391	$old_spvar = $cx['sp_vars'];
392	$cx['sp_vars'] = array_merge(array('root' => $old_spvar['root']), $old_spvar, array('_parent' => $old_spvar));
393	if (!$isTrav) {
394	$last = count($keys) - 1;
395	}
396	}
397
398	$isSparceArray = $isObj && (count(array_filter(array_keys($v), 'is_string')) == 0);
399	foreach ($v as $index => $raw) {
400	if ($cx['flags']['spvar']) {
401	$cx['sp_vars']['first'] = ($i === 0);
402	$cx['sp_vars']['last'] = ($i == $last);
403	$cx['sp_vars']['key'] = $index;
404	$cx['sp_vars']['index'] = $isSparceArray ? $index : $i;
405	$i++;
406	}
407	if (isset($bp[0])) {
408	$raw = static::m($cx, $raw, array($bp[0] => $raw));
409	}
410	if (isset($bp[1])) {
411	$raw = static::m($cx, $raw, array($bp[1] => $index));
412	}
413	$ret[] = $cb($cx, $raw);
414	}
415	if ($cx['flags']['spvar']) {
416	if ($isObj) {
417	unset($cx['sp_vars']['key']);
418	} else {
419	unset($cx['sp_vars']['last']);
420	}
421	unset($cx['sp_vars']['index']);
422	unset($cx['sp_vars']['first']);
423	$cx['sp_vars'] = $old_spvar;
424	}
425	if ($push) {
426	array_pop($cx['scopes']);
427	}
428	return join('', $ret);
429	}
430	if ($each) {
431	if ($else !== null) {
432	$ret = $else($cx, $v);
433	return $ret;
434	}
435	return '';
436	}
437	if ($isAry) {
438	if ($push) {
439	$cx['scopes'][] = $in;
440	}
441	$ret = $cb($cx, $v);
442	if ($push) {
443	array_pop($cx['scopes']);
444	}
445	return $ret;
446	}
447
448	if ($cx['flags']['mustsec']) {
449	return $v ? $cb($cx, $in) : '';
450	}
451
452	if ($v === true) {
453	return $cb($cx, $in);
454	}
455
456	if (($v !== null) && ($v !== false)) {
457	return $cb($cx, $v);
458	}
459
460	if ($else !== null) {
461	$ret = $else($cx, $in);
462	return $ret;
463	}
464
465	return '';
466	}
467
468	/**
469	* For {{#with}} .
470	*
471	* @param array<string,array\|string\|integer> $cx render time context for lightncandy
472	* @param array<array\|string\|integer>\|string\|integer\|null $v value to be the new context
473	* @param array<array\|string\|integer>\|string\|integer\|null $in input data with current scope
474	* @param array<string>\|null $bp block parameters
475	* @param Closure $cb callback function to render child context
476	* @param Closure\|null $else callback function to render child context when {{else}}
477	*
478	* @return string The rendered string of the token
479	*
480	* @expect '' when input array(), false, null, false, function () {return 'A';}
481	* @expect '' when input array(), null, null, null, function () {return 'A';}
482	* @expect '{"a":"b"}' when input array(), array('a'=>'b'), null, array('a'=>'c'), function ($c, $i) {return json_encode($i);}
483	* @expect '-b=' when input array(), 'b', null, array('a'=>'b'), function ($c, $i) {return "-$i=";}
484	*/
485	public static function wi($cx, $v, $bp, $in, $cb, $else = null)
486	{
487	if (isset($bp[0])) {
488	$v = static::m($cx, $v, array($bp[0] => $v));
489	}
490	if (($v === false) \|\| ($v === null) \|\| (is_array($v) && (count($v) === 0))) {
491	return $else ? $else($cx, $in) : '';
492	}
493	if ($v === $in) {
494	$ret = $cb($cx, $v);
495	} else {
496	$cx['scopes'][] = $in;
497	$ret = $cb($cx, $v);
498	array_pop($cx['scopes']);
499	}
500	return $ret;
501	}
502
503	/**
504	* Get merged context.
505	*
506	* @param array<string,array\|string\|integer> $cx render time context for lightncandy
507	* @param array<array\|string\|integer>\|string\|integer\|null $a the context to be merged
508	* @param array<array\|string\|integer>\|string\|integer\|null $b the new context to overwrite
509	*
510	* @return array<array\|string\|integer>\|string\|integer the merged context object
511	*
512	*/
513	public static function m($cx, $a, $b)
514	{
515	if (is_array($b)) {
516	if ($a === null) {
517	return $b;
518	} elseif (is_array($a)) {
519	return array_merge($a, $b);
520	} elseif ($cx['flags']['method'] \|\| $cx['flags']['prop']) {
521	if (!is_object($a)) {
522	$a = new StringObject($a);
523	}
524	foreach ($b as $i => $v) {
525	$a->$i = $v;
526	}
527	}
528	}
529	return $a;
530	}
531
532	/**
533	* For {{> partial}} .
534	*
535	* @param array<string,array\|string\|integer> $cx render time context for lightncandy
536	* @param string $p partial name
537	* @param array<array\|string\|integer>\|string\|integer\|null $v value to be the new context
538	*
539	* @return string The rendered string of the partial
540	*
541	*/
542	public static function p($cx, $p, $v, $pid, $sp = '')
543	{
544	$pp = ($p === '@partial-block') ? "$p" . ($pid > 0 ? $pid : $cx['partialid']) : $p;
545
546	if (!isset($cx['partials'][$pp])) {
547	static::err($cx, "Can not find partial named as '$p' !!");
548	return '';
549	}
550
551	$cx['partialid'] = ($p === '@partial-block') ? (($pid > 0) ? $pid : (($cx['partialid'] > 0) ? $cx['partialid'] - 1 : 0)) : $pid;
552
553	return call_user_func($cx['partials'][$pp], $cx, static::m($cx, $v[0][0], $v[1]), $sp);
554	}
555
556	/**
557	* For {{#* inlinepartial}} .
558	*
559	* @param array<string,array\|string\|integer> $cx render time context for lightncandy
560	* @param string $p partial name
561	* @param Closure $code the compiled partial code
562	*
563	*/
564	public static function in(&$cx, $p, $code)
565	{
566	$cx['partials'][$p] = $code;
567	}
568
569	/* For single custom helpers.
570	*
571	* @param array<string,array\|string\|integer> $cx render time context for lightncandy
572	* @param string $ch the name of custom helper to be executed
573	* @param array<array\|string\|integer>\|string\|integer\|null $vars variables for the helper
574	* @param string $op the name of variable resolver. should be one of: 'raw', 'enc', or 'encq'.
575	* @param array<string,array\|string\|integer> $_this current rendering context for the helper
576	*
577	* @return string The rendered string of the token
578	*/
579	public static function hbch(&$cx, $ch, $vars, $op, &$_this)
580	{
581	if (isset($cx['blparam'][0][$ch])) {
582	return $cx['blparam'][0][$ch];
583	}
584
585	$options = array(
586	'name' => $ch,
587	'hash' => $vars[1],
588	'contexts' => count($cx['scopes']) ? $cx['scopes'] : array(null),
589	'fn.blockParams' => 0,
590	'_this' => &$_this
591	);
592
593	if ($cx['flags']['spvar']) {
594	$options['data'] = &$cx['sp_vars'];
595	}
596
597	return static::exch($cx, $ch, $vars, $options);
598	}
599
600	/**
601	* For block custom helpers.
602	*
603	* @param array<string,array\|string\|integer> $cx render time context for lightncandy
604	* @param string $ch the name of custom helper to be executed
605	* @param array<array\|string\|integer>\|string\|integer\|null $vars variables for the helper
606	* @param array<string,array\|string\|integer> $_this current rendering context for the helper
607	* @param boolean $inverted the logic will be inverted
608	* @param Closure\|null $cb callback function to render child context
609	* @param Closure\|null $else callback function to render child context when {{else}}
610	*
611	* @return string The rendered string of the token
612	*/
613	public static function hbbch(&$cx, $ch, $vars, &$_this, $inverted, $cb, $else = null)
614	{
615	$options = array(
616	'name' => $ch,
617	'hash' => $vars[1],
618	'contexts' => count($cx['scopes']) ? $cx['scopes'] : array(null),
619	'fn.blockParams' => 0,
620	'_this' => &$_this,
621	);
622
623	if ($cx['flags']['spvar']) {
624	$options['data'] = &$cx['sp_vars'];
625	}
626
627	if (isset($vars[2])) {
628	$options['fn.blockParams'] = count($vars[2]);
629	}
630
631	// $invert the logic
632	if ($inverted) {
633	$tmp = $else;
634	$else = $cb;
635	$cb = $tmp;
636	}
637
638	$options['fn'] = function ($context = '_NO_INPUT_HERE_', $data = null) use ($cx, &$_this, $cb, $options, $vars) {
639	if ($cx['flags']['echo']) {
640	ob_start();
641	}
642	if (isset($data['data'])) {
643	$old_spvar = $cx['sp_vars'];
644	$cx['sp_vars'] = array_merge(array('root' => $old_spvar['root']), $data['data'], array('_parent' => $old_spvar));
645	}
646	$ex = false;
647	if (isset($data['blockParams']) && isset($vars[2])) {
648	$ex = array_combine($vars[2], array_slice($data['blockParams'], 0, count($vars[2])));
649	array_unshift($cx['blparam'], $ex);
650	} elseif (isset($cx['blparam'][0])) {
651	$ex = $cx['blparam'][0];
652	}
653	if (($context === '_NO_INPUT_HERE_') \|\| ($context === $_this)) {
654	$ret = $cb($cx, is_array($ex) ? static::m($cx, $_this, $ex) : $_this);
655	} else {
656	$cx['scopes'][] = $_this;
657	$ret = $cb($cx, is_array($ex) ? static::m($cx, $context, $ex) : $context);
658	array_pop($cx['scopes']);
659	}
660	if (isset($data['data'])) {
661	$cx['sp_vars'] = $old_spvar;
662	}
663	return $cx['flags']['echo'] ? ob_get_clean() : $ret;
664	};
665
666	if ($else) {
667	$options['inverse'] = function ($context = '_NO_INPUT_HERE_') use ($cx, $_this, $else) {
668	if ($cx['flags']['echo']) {
669	ob_start();
670	}
671	if ($context === '_NO_INPUT_HERE_') {
672	$ret = $else($cx, $_this);
673	} else {
674	$cx['scopes'][] = $_this;
675	$ret = $else($cx, $context);
676	array_pop($cx['scopes']);
677	}
678	return $cx['flags']['echo'] ? ob_get_clean() : $ret;
679	};
680	} else {
681	$options['inverse'] = function () {
682	return '';
683	};
684	}
685
686	return static::exch($cx, $ch, $vars, $options);
687	}
688
689	/**
690	* Execute custom helper with prepared options
691	*
692	* @param array<string,array\|string\|integer> $cx render time context for lightncandy
693	* @param string $ch the name of custom helper to be executed
694	* @param array<array\|string\|integer>\|string\|integer\|null $vars variables for the helper
695	* @param array<string,array\|string\|integer> $options the options object
696	*
697	* @return string The rendered string of the token
698	*/
699	public static function exch($cx, $ch, $vars, &$options)
700	{
701	$args = $vars[0];
702	$args[] = &$options;
703	$r = true;
704
705	try {
706	$r = call_user_func_array($cx['helpers'][$ch], $args);
707	} catch (\Exception $E) {
708	static::err($cx, "Runtime: call custom helper '$ch' error: " . $E->getMessage());
709	}
710
711	return $r;
712	}
713	}
714