zordius /
lightncandy
Complex classes like Runtime often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Runtime, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 26 | class Runtime |
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| 27 | { |
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| 28 | const DEBUG_ERROR_LOG = 1; |
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| 29 | const DEBUG_ERROR_EXCEPTION = 2; |
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| 30 | const DEBUG_TAGS = 4; |
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| 31 | const DEBUG_TAGS_ANSI = 12; |
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| 32 | const DEBUG_TAGS_HTML = 20; |
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| 33 | |||
| 34 | /** |
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| 35 | * LightnCandy runtime method for output debug info. |
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| 36 | * |
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| 37 | * @param string $v expression |
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| 38 | * @param string $f runtime function name |
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| 39 | * @param array<string,array|string|integer> $cx render time context |
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| 40 | * |
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| 41 | * @expect '{{123}}' when input '123', 'miss', array('flags' => array('debug' => Runtime::DEBUG_TAGS), 'runtime' => 'LightnCandy\\Runtime'), '' |
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| 42 | * @expect '<!--MISSED((-->{{#123}}<!--))--><!--SKIPPED--><!--MISSED((-->{{/123}}<!--))-->' when input '123', 'wi', array('flags' => array('debug' => Runtime::DEBUG_TAGS_HTML), 'runtime' => 'LightnCandy\\Runtime'), false, false, function () {return 'A';} |
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| 43 | */ |
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| 44 | 9 | public static function debug($v, $f, $cx) { |
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| 76 | |||
| 77 | /** |
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| 78 | * LightnCandy runtime method for error |
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| 79 | * |
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| 80 | * @param array<string,array|string|integer> $cx render time context |
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| 81 | * @param string $err error message |
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| 82 | * |
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| 83 | * @throws \Exception |
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| 84 | */ |
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| 85 | 8 | public static function err($cx, $err) { |
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| 94 | |||
| 95 | /** |
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| 96 | * LightnCandy runtime method for missing data error. |
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| 97 | * |
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| 98 | * @param array<string,array|string|integer> $cx render time context |
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| 99 | * @param string $v expression |
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| 100 | */ |
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| 101 | 5 | public static function miss($cx, $v) { |
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| 104 | |||
| 105 | /** |
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| 106 | * LightnCandy runtime method for variable lookup. It is slower and only be used for instance property or method detection or lambdas. |
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| 107 | * |
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| 108 | * @param array<string,array|string|integer> $cx render time context |
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| 109 | * @param array<array|string|integer> $base current variable context |
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| 110 | * @param array<string|integer> $path array of names for path |
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| 111 | * |
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| 112 | * @return null|string Return the value or null when not found |
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| 113 | * |
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| 114 | * @expect null when input array('scopes' => array(), 'flags' => array('prop' => 0, 'method' => 0, 'mustlok' => 0)), 0, array('a', 'b') |
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| 115 | * @expect 3 when input array('scopes' => array(), 'flags' => array('prop' => 0, 'method' => 0), 'mustlok' => 0), array('a' => array('b' => 3)), array('a', 'b') |
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| 116 | * @expect null when input array('scopes' => array(), 'flags' => array('prop' => 0, 'method' => 0, 'mustlok' => 0)), (Object) array('a' => array('b' => 3)), array('a', 'b') |
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| 117 | * @expect 3 when input array('scopes' => array(), 'flags' => array('prop' => 1, 'method' => 0, 'mustlok' => 0)), (Object) array('a' => array('b' => 3)), array('a', 'b') |
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| 118 | */ |
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| 119 | 336 | public static function v($cx, $base, $path) { |
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| 164 | |||
| 165 | /** |
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| 166 | * LightnCandy runtime method for {{#if var}}. |
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| 167 | * |
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| 168 | * @param array<string,array|string|integer> $cx render time context |
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| 169 | * @param array<array|string|integer>|string|integer|null $v value to be tested |
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| 170 | * @param boolean $zero include zero as true |
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| 171 | * |
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| 172 | * @return boolean Return true when the value is not null nor false. |
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| 173 | * |
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| 174 | * @expect false when input array(), null, false |
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| 175 | * @expect false when input array(), 0, false |
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| 176 | * @expect true when input array(), 0, true |
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| 177 | * @expect false when input array(), false, false |
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| 178 | * @expect true when input array(), true, false |
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| 179 | * @expect true when input array(), 1, false |
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| 180 | * @expect false when input array(), '', false |
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| 181 | * @expect false when input array(), array(), false |
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| 182 | * @expect true when input array(), array(''), false |
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| 183 | * @expect true when input array(), array(0), false |
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| 184 | */ |
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| 185 | 54 | public static function ifvar($cx, $v, $zero) { |
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| 188 | |||
| 189 | /** |
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| 190 | * LightnCandy runtime method for {{#if var}} when {{../var}} used. |
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| 191 | * |
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| 192 | * @param array<string,array|string|integer> $cx render time context |
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| 193 | * @param array<array|string|integer>|string|integer|null $v value to be tested |
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| 194 | * @param boolean $zero include zero as true |
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| 195 | * @param array<array|string|integer> $in input data with current scope |
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| 196 | * @param Closure|null $truecb callback function when test result is true |
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| 197 | * @param Closure|null $falsecb callback function when test result is false |
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| 198 | * |
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| 199 | * @return string The rendered string of the section |
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| 200 | * |
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| 201 | * @expect '' when input array('scopes' => array()), null, false, array(), null |
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| 202 | * @expect '' when input array('scopes' => array()), null, false, array(), function () {return 'Y';} |
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| 203 | * @expect 'Y' when input array('scopes' => array()), 1, false, array(), function () {return 'Y';} |
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| 204 | * @expect 'N' when input array('scopes' => array()), null, false, array(), function () {return 'Y';}, function () {return 'N';} |
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| 205 | */ |
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| 206 | 1 | public static function ifv($cx, $v, $zero, $in, $truecb, $falsecb = null) { |
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| 218 | |||
| 219 | /** |
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| 220 | * LightnCandy runtime method for {{#unless var}} when {{../var}} used. |
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| 221 | * |
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| 222 | * @param array<string,array|string|integer> $cx render time context |
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| 223 | * @param array<array|string|integer>|string|integer|null $var value be tested |
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| 224 | * @param boolean $zero include zero as true |
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| 225 | * @param array<array|string|integer>|string|integer|null $in input data with current scope |
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| 226 | * @param Closure $truecb callback function when test result is true |
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| 227 | * @param Closure|null $falsecb callback function when test result is false |
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| 228 | * |
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| 229 | * @return string Return rendered string when the value is not null nor false. |
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| 230 | * |
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| 231 | * @expect '' when input array('scopes' => array()), null, false, array(), null |
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| 232 | * @expect 'Y' when input array('scopes' => array()), null, false, array(), function () {return 'Y';} |
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| 233 | * @expect '' when input array('scopes' => array()), 1, false, array(), function () {return 'Y';} |
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| 234 | * @expect 'Y' when input array('scopes' => array()), null, false, array(), function () {return 'Y';}, function () {return 'N';} |
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| 235 | * @expect 'N' when input array('scopes' => array()), true, false, array(), function () {return 'Y';}, function () {return 'N';} |
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| 236 | */ |
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| 237 | 1 | public static function unl($cx, $var, $zero, $in, $truecb, $falsecb = null) { |
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| 240 | |||
| 241 | /** |
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| 242 | * LightnCandy runtime method for {{^var}} inverted section. |
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| 243 | * |
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| 244 | * @param array<string,array|string|integer> $cx render time context |
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| 245 | * @param array<array|string|integer>|string|integer|null $v value to be tested |
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| 246 | * |
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| 247 | * @return boolean Return true when the value is not null nor false. |
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| 248 | * |
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| 249 | * @expect true when input array(), null |
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| 250 | * @expect false when input array(), 0 |
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| 251 | * @expect true when input array(), false |
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| 252 | * @expect false when input array(), 'false' |
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| 253 | * @expect true when input array(), array() |
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| 254 | * @expect false when input array(), array('1') |
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| 255 | */ |
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| 256 | 36 | public static function isec($cx, $v) { |
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| 259 | |||
| 260 | /** |
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| 261 | * LightnCandy runtime method for {{{var}}} . |
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| 262 | * |
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| 263 | * @param array<string,array|string|integer> $cx render time context |
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| 264 | * @param array<array|string|integer>|string|integer|null $v value to be output |
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| 265 | * |
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| 266 | * @return string The raw value of the specified variable |
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| 267 | * |
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| 268 | * @expect true when input array('flags' => array('jstrue' => 0, 'mustlam' => 0, 'lambda' => 0)), true |
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| 269 | * @expect 'true' when input array('flags' => array('jstrue' => 1)), true |
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| 270 | * @expect '' when input array('flags' => array('jstrue' => 0, 'mustlam' => 0, 'lambda' => 0)), false |
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| 271 | * @expect 'false' when input array('flags' => array('jstrue' => 1)), false |
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| 272 | * @expect 'false' when input array('flags' => array('jstrue' => 1)), false, true |
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| 273 | * @expect 'Array' when input array('flags' => array('jstrue' => 1, 'jsobj' => 0)), array('a', 'b') |
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| 274 | * @expect 'a,b' when input array('flags' => array('jstrue' => 1, 'jsobj' => 1, 'mustlam' => 0, 'lambda' => 0)), array('a', 'b') |
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| 275 | * @expect '[object Object]' when input array('flags' => array('jstrue' => 1, 'jsobj' => 1)), array('a', 'c' => 'b') |
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| 276 | * @expect '[object Object]' when input array('flags' => array('jstrue' => 1, 'jsobj' => 1)), array('c' => 'b') |
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| 277 | * @expect 'a,true' when input array('flags' => array('jstrue' => 1, 'jsobj' => 1, 'mustlam' => 0, 'lambda' => 0)), array('a', true) |
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| 278 | * @expect 'a,1' when input array('flags' => array('jstrue' => 0, 'jsobj' => 1, 'mustlam' => 0, 'lambda' => 0)), array('a',true) |
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| 279 | * @expect 'a,' when input array('flags' => array('jstrue' => 0, 'jsobj' => 1, 'mustlam' => 0, 'lambda' => 0)), array('a',false) |
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| 280 | * @expect 'a,false' when input array('flags' => array('jstrue' => 1, 'jsobj' => 1, 'mustlam' => 0, 'lambda' => 0)), array('a',false) |
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| 281 | */ |
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| 282 | 272 | public static function raw($cx, $v) { |
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| 313 | |||
| 314 | /** |
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| 315 | * LightnCandy runtime method for {{var}} . |
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| 316 | * |
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| 317 | * @param array<string,array|string|integer> $cx render time context |
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| 318 | * @param array<array|string|integer>|string|integer|null $var value to be htmlencoded |
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| 319 | * |
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| 320 | * @return string The htmlencoded value of the specified variable |
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| 321 | * |
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| 322 | * @expect 'a' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a' |
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| 323 | * @expect 'a&b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a&b' |
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| 324 | * @expect 'a'b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a\'b' |
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| 325 | */ |
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| 326 | 44 | public static function enc($cx, $var) { |
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| 329 | |||
| 330 | /** |
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| 331 | * LightnCandy runtime method for {{var}} , and deal with single quote to same as handlebars.js . |
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| 332 | * |
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| 333 | * @param array<string,array|string|integer> $cx render time context |
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| 334 | * @param array<array|string|integer>|string|integer|null $var value to be htmlencoded |
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| 335 | * |
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| 336 | * @return string The htmlencoded value of the specified variable |
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| 337 | * |
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| 338 | * @expect 'a' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a' |
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| 339 | * @expect 'a&b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a&b' |
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| 340 | * @expect 'a'b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a\'b' |
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| 341 | * @expect '`a'b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), '`a\'b' |
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| 342 | */ |
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| 343 | 201 | public static function encq($cx, $var) { |
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| 346 | |||
| 347 | /** |
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| 348 | * LightnCandy runtime method for {{#var}} section. |
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| 349 | * |
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| 350 | * @param array<string,array|string|integer> $cx render time context |
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| 351 | * @param array<array|string|integer>|string|integer|null $v value for the section |
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| 352 | * @param array<array|string|integer>|string|integer|null $in input data with current scope |
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| 353 | * @param boolean $each true when rendering #each |
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| 354 | * @param Closure $cb callback function to render child context |
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| 355 | * @param Closure|null $else callback function to render child context when {{else}} |
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| 356 | * |
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| 357 | * @return string The rendered string of the section |
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| 358 | * |
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| 359 | * @expect '' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), false, false, false, function () {return 'A';} |
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| 360 | * @expect '' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), null, null, false, function () {return 'A';} |
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| 361 | * @expect 'A' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), true, true, false, function () {return 'A';} |
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| 362 | * @expect 'A' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 0, 0, false, function () {return 'A';} |
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| 363 | * @expect '-a=' when input array('scopes' => array(), 'flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array('a'), array('a'), false, function ($c, $i) {return "-$i=";} |
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| 364 | * @expect '-a=-b=' when input array('scopes' => array(), 'flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array('a','b'), array('a','b'), false, function ($c, $i) {return "-$i=";} |
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| 365 | * @expect '' when input array('scopes' => array(), 'flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 'abc', 'abc', true, function ($c, $i) {return "-$i=";} |
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| 366 | * @expect '-b=' when input array('scopes' => array(), 'flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array('a' => 'b'), array('a' => 'b'), true, function ($c, $i) {return "-$i=";} |
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| 367 | * @expect '1' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 'b', 'b', false, function ($c, $i) {return count($i);} |
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| 368 | * @expect '1' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 1, 1, false, function ($c, $i) {return print_r($i, true);} |
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| 369 | * @expect '0' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 0, 0, false, function ($c, $i) {return print_r($i, true);} |
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| 370 | * @expect '{"b":"c"}' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array('b' => 'c'), array('b' => 'c'), false, function ($c, $i) {return json_encode($i);} |
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| 371 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array(), 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 372 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array(), 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 373 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), false, 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 374 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), false, 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 375 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), '', 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 376 | * @expect 'cb' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), '', 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 377 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 0, 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 378 | * @expect 'cb' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 0, 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 379 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), new stdClass, 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 380 | * @expect 'cb' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), new stdClass, 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 381 | * @expect '268' when input array('scopes' => array(), 'flags' => array('spvar' => 1, 'mustlam' => 0, 'lambda' => 0), 'sp_vars'=>array('root' => 0)), array(1,3,4), 0, false, function ($c, $i) {return $i * 2;} |
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| 382 | * @expect '038' when input array('scopes' => array(), 'flags' => array('spvar' => 1, 'mustlam' => 0, 'lambda' => 0), 'sp_vars'=>array('root' => 0)), array(1,3,'a'=>4), 0, true, function ($c, $i) {return $i * $c['sp_vars']['index'];} |
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| 383 | */ |
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| 384 | 151 | public static function sec($cx, $v, $in, $each, $cb, $else = null) { |
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| 496 | |||
| 497 | /** |
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| 498 | * LightnCandy runtime method for {{#with var}} . |
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| 499 | * |
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| 500 | * @param array<string,array|string|integer> $cx render time context |
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| 501 | * @param array<array|string|integer>|string|integer|null $v value to be the new context |
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| 502 | * @param array<array|string|integer>|string|integer|null $in input data with current scope |
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| 503 | * @param Closure $cb callback function to render child context |
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| 504 | * @param Closure|null $else callback function to render child context when {{else}} |
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| 505 | * |
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| 506 | * @return string The rendered string of the token |
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| 507 | * |
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| 508 | * @expect '' when input array(), false, false, function () {return 'A';} |
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| 509 | * @expect '' when input array(), null, null, function () {return 'A';} |
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| 510 | * @expect '{"a":"b"}' when input array(), array('a'=>'b'), array('a'=>'c'), function ($c, $i) {return json_encode($i);} |
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| 511 | * @expect '-b=' when input array(), 'b', array('a'=>'b'), function ($c, $i) {return "-$i=";} |
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| 512 | */ |
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| 513 | 13 | public static function wi($cx, $v, $in, $cb, $else = null) { |
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| 522 | |||
| 523 | /** |
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| 524 | * LightnCandy runtime method for {{> partial}} . |
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| 525 | * |
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| 526 | * @param array<string,array|string|integer> $cx render time context |
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| 527 | * @param string $p partial name |
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| 528 | * @param array<array|string|integer>|string|integer|null $v value to be the new context |
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| 529 | * |
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| 530 | * @return string The rendered string of the partial |
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| 531 | * |
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| 532 | */ |
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| 533 | 56 | public static function p($cx, $p, $v, $sp = '') { |
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| 555 | |||
| 556 | /** |
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| 557 | * LightnCandy runtime method for custom helpers. |
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| 558 | * |
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| 559 | * @param array<string,array|string|integer> $cx render time context |
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| 560 | * @param string $ch the name of custom helper to be executed |
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| 561 | * @param array<array> $vars variables for the helper |
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| 562 | * @param string $op the name of variable resolver. should be one of: 'raw', 'enc', or 'encq'. |
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| 563 | * |
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| 564 | * @return string The rendered string of the token |
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| 565 | * |
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| 566 | * @expect '---' when input array('helpers' => array('a' => function ($i) {return "-$i[0]-";})), 'a', array(array('-'),array()), 'raw' |
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| 567 | * @expect '-&-' when input array('helpers' => array('a' => function ($i) {return "-$i[0]-";})), 'a', array(array('&'),array()), 'enc' |
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| 568 | * @expect '-'-' when input array('helpers' => array('a' => function ($i) {return "-$i[0]-";})), 'a', array(array('\''),array()), 'encq' |
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| 569 | * @expect '-b-' when input array('helpers' => array('a' => function ($i,$j) {return "-{$j['a']}-";})), 'a', array(array(),array('a' => 'b')), 'raw' |
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| 570 | */ |
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| 571 | 22 | public static function ch($cx, $ch, $vars, $op) { |
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| 574 | |||
| 575 | /** |
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| 576 | * LightnCandy runtime method to handle response of custom helpers. |
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| 577 | * |
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| 578 | * @param string|array<string,array|string|integer> $ret return value from custom helper |
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| 579 | * @param string $op the name of variable resolver. should be one of: 'raw', 'enc', or 'encq'. |
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| 580 | * |
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| 581 | * @return string The rendered string of the token |
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| 582 | * |
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| 583 | * @expect '-&-' when input '-&-', 'raw' |
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| 584 | * @expect '-&'-' when input '-&\'-', 'enc' |
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| 585 | * @expect '-&'-' when input '-&\'-', 'encq' |
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| 586 | * @expect '-&'-' when input array('-&\'-'), 'enc' |
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| 587 | * @expect '-&'-' when input array('-&\'-'), 'encq' |
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| 588 | * @expect '-&-' when input array('-&-', false), 'enc' |
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| 589 | * @expect '-&-' when input array('-&-', false), 'raw' |
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| 590 | * @expect '-&-' when input array('-&-', 'raw'), 'enc' |
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| 591 | * @expect '-&'-' when input array('-&\'-', 'encq'), 'raw' |
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| 592 | */ |
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| 593 | 144 | public static function chret($ret, $op) { |
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| 609 | |||
| 610 | /** |
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| 611 | * LightnCandy runtime method for Handlebars.js style custom helpers. |
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| 612 | * |
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| 613 | * @param array<string,array|string|integer> $cx render time context |
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| 614 | * @param string $ch the name of custom helper to be executed |
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| 615 | * @param array<array|string|integer>|string|integer|null $vars variables for the helper |
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| 616 | * @param string $op the name of variable resolver. should be one of: 'raw', 'enc', or 'encq'. |
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| 617 | * @param boolean $inverted the logic will be inverted |
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| 618 | * @param Closure|null $cb callback function to render child context |
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| 619 | * @param Closure|null $else callback function to render child context when {{else}} |
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| 620 | * |
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| 621 | * @return string The rendered string of the token |
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| 622 | */ |
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| 623 | 124 | public static function hbch($cx, $ch, $vars, $op, $inverted, $cb = null, $else = null) { |
|
| 703 | |||
| 704 | /** |
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| 705 | * LightnCandy runtime method for block custom helpers. |
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| 706 | * |
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| 707 | * @param array<string,array|string|integer> $cx render time context |
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| 708 | * @param string $ch the name of custom helper to be executed |
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| 709 | * @param array<array|string|integer>|string|integer|null $vars variables for the helper |
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| 710 | * @param array<array|string|integer>|string|integer|null $in input data with current scope |
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| 711 | * @param boolean $inverted the logic will be inverted |
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| 712 | * @param Closure $cb callback function to render child context |
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| 713 | * @param Closure|null $else callback function to render child context when {{else}} |
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| 714 | * |
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| 715 | * @return string The rendered string of the token |
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| 716 | * |
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| 717 | * @expect '4.2.3' when input array('blockhelpers' => array('a' => function ($cx) {return array($cx,2,3);})), 'a', array(0, 0), 4, false, function($cx, $i) {return implode('.', $i);} |
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| 718 | * @expect '2.6.5' when input array('blockhelpers' => array('a' => function ($cx,$in) {return array($cx,$in[0],5);})), 'a', array('6', 0), 2, false, function($cx, $i) {return implode('.', $i);} |
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| 719 | * @expect '' when input array('blockhelpers' => array('a' => function ($cx,$in) {})), 'a', array('6', 0), 2, false, function($cx, $i) {return implode('.', $i);} |
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| 720 | */ |
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| 721 | 4 | public static function bch($cx, $ch, $vars, $in, $inverted, $cb, $else = null) { |
|
| 748 | } |
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| 749 | |||
| 750 |
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This check looks from parameters that have been defined for a function or method, but which are not used in the method body.