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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| 27 | class Runtime extends Encoder |
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| 28 | { |
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| 29 | const DEBUG_ERROR_LOG = 1; |
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| 30 | const DEBUG_ERROR_EXCEPTION = 2; |
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| 31 | const DEBUG_TAGS = 4; |
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| 32 | const DEBUG_TAGS_ANSI = 12; |
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| 33 | const DEBUG_TAGS_HTML = 20; |
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| 34 | |||
| 35 | /** |
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| 36 | * Output debug info. |
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| 37 | * |
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| 38 | * @param string $v expression |
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| 39 | * @param string $f runtime function name |
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| 40 | * @param array<string,array|string|integer> $cx render time context |
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| 41 | * |
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| 42 | * @expect '{{123}}' when input '123', 'miss', array('flags' => array('debug' => Runtime::DEBUG_TAGS), 'runtime' => 'LightnCandy\\Runtime'), '' |
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| 43 | * @expect '<!--MISSED((-->{{#123}}<!--))--><!--SKIPPED--><!--MISSED((-->{{/123}}<!--))-->' when input '123', 'wi', array('flags' => array('debug' => Runtime::DEBUG_TAGS_HTML), 'runtime' => 'LightnCandy\\Runtime'), false, null, false, function () {return 'A';} |
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| 44 | */ |
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| 45 | 9 | public static function debug($v, $f, $cx) { |
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| 75 | |||
| 76 | /** |
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| 77 | * Handle error by error_log or throw exception. |
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| 78 | * |
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| 79 | * @param array<string,array|string|integer> $cx render time context |
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| 80 | * @param string $err error message |
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| 81 | * |
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| 82 | * @throws \Exception |
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| 83 | */ |
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| 84 | 12 | public static function err($cx, $err) { |
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| 93 | |||
| 94 | /** |
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| 95 | * Handle missing data error. |
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| 96 | * |
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| 97 | * @param array<string,array|string|integer> $cx render time context |
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| 98 | * @param string $v expression |
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| 99 | */ |
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| 100 | 5 | public static function miss($cx, $v) { |
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| 103 | |||
| 104 | /** |
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| 105 | * For {{log}} . |
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| 106 | * |
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| 107 | * @param array<string,array|string|integer> $cx render time context |
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| 108 | * @param string $v expression |
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| 109 | */ |
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| 110 | public static function lo($cx, $v) { |
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| 111 | error_log(var_export($v[0], true)); |
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| 112 | return ''; |
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| 113 | } |
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| 114 | |||
| 115 | /** |
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| 116 | * Resursive lookup variable and helpers. This is slow and will only be used for instance property or method detection or lambdas. |
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| 117 | * |
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| 118 | * @param array<string,array|string|integer> $cx render time context |
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| 119 | * @param array|string|boolean|integer|double|null $in current context |
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| 120 | * @param array<array|string|integer> $base current variable context |
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| 121 | * @param array<string|integer> $path array of names for path |
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| 122 | * @param array|null $args extra arguments for lambda |
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| 123 | * |
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| 124 | * @return null|string Return the value or null when not found |
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| 125 | * |
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| 126 | * @expect null when input array('scopes' => array(), 'flags' => array('prop' => 0, 'method' => 0, 'mustlok' => 0)), null, 0, array('a', 'b') |
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| 127 | * @expect 3 when input array('scopes' => array(), 'flags' => array('prop' => 0, 'method' => 0), 'mustlok' => 0), null, array('a' => array('b' => 3)), array('a', 'b') |
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| 128 | * @expect null when input array('scopes' => array(), 'flags' => array('prop' => 0, 'method' => 0, 'mustlok' => 0)), null, (Object) array('a' => array('b' => 3)), array('a', 'b') |
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| 129 | * @expect 3 when input array('scopes' => array(), 'flags' => array('prop' => 1, 'method' => 0, 'mustlok' => 0)), null, (Object) array('a' => array('b' => 3)), array('a', 'b') |
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| 130 | */ |
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| 131 | 384 | public static function v($cx, $in, $base, $path, $args = null) { |
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| 185 | |||
| 186 | /** |
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| 187 | * For {{#if}} . |
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| 188 | * |
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| 189 | * @param array<string,array|string|integer> $cx render time context |
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| 190 | * @param array<array|string|integer>|string|integer|null $v value to be tested |
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| 191 | * @param boolean $zero include zero as true |
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| 192 | * |
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| 193 | * @return boolean Return true when the value is not null nor false. |
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| 194 | * |
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| 195 | * @expect false when input array(), null, false |
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| 196 | * @expect false when input array(), 0, false |
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| 197 | * @expect true when input array(), 0, true |
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| 198 | * @expect false when input array(), false, false |
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| 199 | * @expect true when input array(), true, false |
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| 200 | * @expect true when input array(), 1, false |
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| 201 | * @expect false when input array(), '', false |
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| 202 | * @expect false when input array(), array(), false |
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| 203 | * @expect true when input array(), array(''), false |
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| 204 | * @expect true when input array(), array(0), false |
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| 205 | */ |
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| 206 | 73 | public static function ifvar($cx, $v, $zero) { |
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| 209 | |||
| 210 | /** |
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| 211 | * For {{^var}} . |
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| 212 | * |
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| 213 | * @param array<string,array|string|integer> $cx render time context |
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| 214 | * @param array<array|string|integer>|string|integer|null $v value to be tested |
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| 215 | * |
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| 216 | * @return boolean Return true when the value is not null nor false. |
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| 217 | * |
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| 218 | * @expect true when input array(), null |
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| 219 | * @expect false when input array(), 0 |
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| 220 | * @expect true when input array(), false |
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| 221 | * @expect false when input array(), 'false' |
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| 222 | * @expect true when input array(), array() |
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| 223 | * @expect false when input array(), array('1') |
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| 224 | */ |
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| 225 | 37 | public static function isec($cx, $v) { |
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| 228 | |||
| 229 | /** |
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| 230 | * For {{var}} . |
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| 231 | * |
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| 232 | * @param array<string,array|string|integer> $cx render time context |
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| 233 | * @param array<array|string|integer>|string|integer|null $var value to be htmlencoded |
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| 234 | * |
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| 235 | * @return string The htmlencoded value of the specified variable |
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| 236 | * |
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| 237 | * @expect 'a' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a' |
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| 238 | * @expect 'a&b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a&b' |
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| 239 | * @expect 'a'b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a\'b' |
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| 240 | * @expect 'a&b' when input null, new \LightnCandy\SafeString('a&b') |
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| 241 | */ |
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| 242 | 45 | public static function enc($cx, $var) { |
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| 249 | |||
| 250 | /** |
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| 251 | * For {{var}} , do html encode just like handlebars.js . |
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| 252 | * |
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| 253 | * @param array<string,array|string|integer> $cx render time context |
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| 254 | * @param array<array|string|integer>|string|integer|null $var value to be htmlencoded |
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| 255 | * |
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| 256 | * @return string The htmlencoded value of the specified variable |
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| 257 | * |
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| 258 | * @expect 'a' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a' |
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| 259 | * @expect 'a&b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a&b' |
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| 260 | * @expect 'a'b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), 'a\'b' |
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| 261 | * @expect '`a'b' when input array('flags' => array('mustlam' => 0, 'lambda' => 0)), '`a\'b' |
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| 262 | */ |
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| 263 | 327 | public static function encq($cx, $var) { |
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| 270 | |||
| 271 | /** |
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| 272 | * For {{#var}} or {{#each}} . |
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| 273 | * |
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| 274 | * @param array<string,array|string|integer> $cx render time context |
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| 275 | * @param array<array|string|integer>|string|integer|null $v value for the section |
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| 276 | * @param array<string>|null $bp block parameters |
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| 277 | * @param array<array|string|integer>|string|integer|null $in input data with current scope |
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| 278 | * @param boolean $each true when rendering #each |
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| 279 | * @param Closure $cb callback function to render child context |
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| 280 | * @param Closure|null $else callback function to render child context when {{else}} |
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| 281 | * |
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| 282 | * @return string The rendered string of the section |
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| 283 | * |
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| 284 | * @expect '' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), false, null, false, false, function () {return 'A';} |
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| 285 | * @expect '' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), null, null, null, false, function () {return 'A';} |
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| 286 | * @expect 'A' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), true, null, true, false, function () {return 'A';} |
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| 287 | * @expect 'A' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 0, null, 0, false, function () {return 'A';} |
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| 288 | * @expect '-a=' when input array('scopes' => array(), 'flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array('a'), null, array('a'), false, function ($c, $i) {return "-$i=";} |
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| 289 | * @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=";} |
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| 290 | * @expect '' when input array('scopes' => array(), 'flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 'abc', null, 'abc', true, function ($c, $i) {return "-$i=";} |
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| 291 | * @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=";} |
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| 292 | * @expect '1' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 'b', null, 'b', false, function ($c, $i) {return count($i);} |
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| 293 | * @expect '1' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 1, null, 1, false, function ($c, $i) {return print_r($i, true);} |
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| 294 | * @expect '0' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 0, null, 0, false, function ($c, $i) {return print_r($i, true);} |
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| 295 | * @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);} |
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| 296 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array(), null, 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 297 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), array(), null, 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 298 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), false, null, 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 299 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), false, null, 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 300 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), '', null, 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 301 | * @expect 'cb' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), '', null, 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 302 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 0, null, 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 303 | * @expect 'cb' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), 0, null, 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 304 | * @expect 'inv' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), new stdClass, null, 0, true, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 305 | * @expect 'cb' when input array('flags' => array('spvar' => 0, 'mustlam' => 0, 'lambda' => 0)), new stdClass, null, 0, false, function ($c, $i) {return 'cb';}, function ($c, $i) {return 'inv';} |
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| 306 | * @expect '268' when input array('scopes' => array(), 'flags' => array('spvar' => 1, 'mustlam' => 0, 'lambda' => 0), 'sp_vars'=>array('root' => 0)), array(1,3,4), null, 0, false, function ($c, $i) {return $i * 2;} |
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| 307 | * @expect '038' when input array('scopes' => array(), 'flags' => array('spvar' => 1, 'mustlam' => 0, 'lambda' => 0), 'sp_vars'=>array('root' => 0)), array(1,3,'a'=>4), null, 0, true, function ($c, $i) {return $i * $c['sp_vars']['index'];} |
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| 308 | */ |
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| 309 | 162 | public static function sec($cx, $v, $bp, $in, $each, $cb, $else = null) { |
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| 417 | |||
| 418 | /** |
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| 419 | * For {{#with}} . |
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| 420 | * |
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| 421 | * @param array<string,array|string|integer> $cx render time context |
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| 422 | * @param array<array|string|integer>|string|integer|null $v value to be the new context |
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| 423 | * @param array<array|string|integer>|string|integer|null $in input data with current scope |
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| 424 | * @param array<string>|null $bp block parameters |
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| 425 | * @param Closure $cb callback function to render child context |
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| 426 | * @param Closure|null $else callback function to render child context when {{else}} |
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| 427 | * |
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| 428 | * @return string The rendered string of the token |
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| 429 | * |
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| 430 | * @expect '' when input array(), false, null, false, function () {return 'A';} |
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| 431 | * @expect '' when input array(), null, null, null, function () {return 'A';} |
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| 432 | * @expect '{"a":"b"}' when input array(), array('a'=>'b'), null, array('a'=>'c'), function ($c, $i) {return json_encode($i);} |
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| 433 | * @expect '-b=' when input array(), 'b', null, array('a'=>'b'), function ($c, $i) {return "-$i=";} |
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| 434 | */ |
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| 435 | 28 | public static function wi($cx, $v, $bp, $in, $cb, $else = null) { |
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| 451 | |||
| 452 | /** |
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| 453 | * Get merged context. |
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| 454 | * |
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| 455 | * @param array<string,array|string|integer> $cx render time context |
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| 456 | * @param array<array|string|integer>|string|integer|null $a the context to be merged |
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| 457 | * @param array<array|string|integer>|string|integer|null $b the new context to overwrite |
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| 458 | * |
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| 459 | * @return array<array|string|integer>|string|integer the merged context object |
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| 460 | * |
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| 461 | */ |
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| 462 | 90 | public static function m($cx, $a, $b) { |
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| 476 | |||
| 477 | /** |
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| 478 | * For {{> partial}} . |
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| 479 | * |
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| 480 | * @param array<string,array|string|integer> $cx render time context |
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| 481 | * @param string $p partial name |
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| 482 | * @param array<array|string|integer>|string|integer|null $v value to be the new context |
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| 483 | * |
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| 484 | * @return string The rendered string of the partial |
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| 485 | * |
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| 486 | */ |
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| 487 | 86 | public static function p($cx, $p, $v, $pid, $sp = '') { |
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| 499 | |||
| 500 | /** |
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| 501 | * For {{#* inlinepartial}} . |
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| 502 | * |
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| 503 | * @param array<string,array|string|integer> $cx render time context |
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| 504 | * @param string $p partial name |
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| 505 | * @param Closure $code the compiled partial code |
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| 506 | * |
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| 507 | */ |
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| 508 | 7 | public static function in(&$cx, $p, $code) { |
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| 511 | |||
| 512 | /** |
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| 513 | * For custom helpers. |
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| 514 | * |
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| 515 | * @param array<string,array|string|integer> $cx render time context |
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| 516 | * @param string $ch the name of custom helper to be executed |
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| 517 | * @param array<array|string|integer>|string|integer|null $vars variables for the helper |
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| 518 | * @param string $op the name of variable resolver. should be one of: 'raw', 'enc', or 'encq'. |
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| 519 | * @param boolean $inverted the logic will be inverted |
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| 520 | * @param Closure|null $cb callback function to render child context |
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| 521 | * @param Closure|null $else callback function to render child context when {{else}} |
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| 522 | * |
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| 523 | * @return string The rendered string of the token |
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| 524 | */ |
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| 525 | 161 | public static function hbch($cx, $ch, $vars, $op, $inverted, $cb = null, $else = null) { |
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| 627 | } |
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| 628 | |||
| 629 |
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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.