balint777 /
POData
| Total Complexity | 94 |
| Total Lines | 742 |
| Duplicated Lines | 0 % |
| Changes | 3 | ||
| Bugs | 0 | Features | 0 |
Complex classes like ExpressionParser 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.
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 ExpressionParser, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 40 | class ExpressionParser |
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| 41 | { |
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| 42 | const RECURSION_LIMIT = 200; |
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| 43 | |||
| 44 | /** |
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| 45 | * The Lexical analyzer |
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| 46 | * |
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| 47 | * @var ExpressionLexer |
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| 48 | */ |
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| 49 | private $_lexer; |
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| 50 | |||
| 51 | /** |
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| 52 | * The current recursion depth |
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| 53 | * |
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| 54 | * @var int |
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| 55 | */ |
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| 56 | private $_recursionDepth; |
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| 57 | |||
| 58 | /** |
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| 59 | * The ResourceType on which $filter condition needs to be applied |
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| 60 | * |
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| 61 | * @var ResourceType |
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| 62 | */ |
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| 63 | private $_resourceType; |
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| 64 | |||
| 65 | /** |
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| 66 | * @var bool |
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| 67 | */ |
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| 68 | private $_isPHPExpressionProvider; |
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| 69 | |||
| 70 | /** |
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| 71 | * True if the filter expression contains level 2 property access, for example |
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| 72 | * Customers?$filter=Address/LineNumber eq 12 |
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| 73 | * Customer?$filter=Order/OrderID gt 1234 |
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| 74 | * False otherwise. |
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| 75 | * |
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| 76 | * @var bool |
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| 77 | */ |
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| 78 | private $_hasLevel2PropertyInTheExpression; |
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| 79 | |||
| 80 | |||
| 81 | /** |
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| 82 | * Construct a new instance of ExpressionParser |
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| 83 | * |
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| 84 | * @param string $text The expression to parse. |
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| 85 | * @param ResourceType $resourceType The resource type of the resource targeted by the resource path. |
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| 86 | * @param bool $isPHPExpressionProvider |
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| 87 | * |
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| 88 | * TODO Expression parser should not depend on the fact that end user is implementing IExpressionProvider or not. |
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| 89 | */ |
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| 90 | public function __construct($text, ResourceType $resourceType, $isPHPExpressionProvider) |
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| 91 | { |
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| 92 | $this->_lexer = new ExpressionLexer($text); |
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| 93 | $this->_resourceType = $resourceType; |
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| 94 | $this->_isPHPExpressionProvider = $isPHPExpressionProvider; |
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| 95 | $this->_hasLevel2PropertyInTheExpression = false; |
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| 96 | } |
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| 97 | |||
| 98 | /** |
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| 99 | * Checks whether the expression contains level 2 property access. |
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| 100 | * |
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| 101 | * @return boolean |
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| 102 | */ |
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| 103 | public function hasLevel2Property() |
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| 104 | { |
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| 105 | return $this->_hasLevel2PropertyInTheExpression; |
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|
Bug
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| 106 | } |
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| 107 | |||
| 108 | /** |
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| 109 | * Get the current token from lexer |
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| 110 | * |
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| 111 | * @return ExpressionToken |
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| 112 | */ |
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| 113 | private function _getCurrentToken() |
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| 114 | { |
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| 115 | return $this->_lexer->getCurrentToken(); |
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| 116 | } |
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| 117 | |||
| 118 | /** |
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| 119 | * Set the current token in lexer |
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| 120 | * |
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| 121 | * @param ExpressionToken $token The token to set as current token. |
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| 122 | * |
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| 123 | * @return void |
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| 124 | */ |
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| 125 | private function _setCurrentToken($token) |
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| 126 | { |
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| 127 | $this->_lexer->setCurrentToken($token); |
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| 128 | } |
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| 129 | |||
| 130 | /** |
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| 131 | * Resets parser with new expression string. |
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| 132 | * |
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| 133 | * @param string $text Reset the expression to parse. |
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| 134 | * |
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| 135 | * @return void |
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| 136 | */ |
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| 137 | public function resetParser($text) |
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| 138 | { |
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| 139 | $this->_lexer = new ExpressionLexer($text); |
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| 140 | $this->_recursionDepth = 0; |
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| 141 | } |
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| 142 | |||
| 143 | /** |
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| 144 | * Parse the expression in filter option. |
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| 145 | * |
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| 146 | * @return AbstractExpression |
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| 147 | */ |
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| 148 | public function parseFilter() |
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| 149 | { |
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| 150 | return $this->_parseExpression(); |
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| 151 | } |
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| 152 | |||
| 153 | /** |
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| 154 | * Start parsing the expression |
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| 155 | * |
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| 156 | * @return AbstractExpression |
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| 157 | */ |
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| 158 | private function _parseExpression() |
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| 159 | { |
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| 160 | $this->_recurseEnter(); |
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| 161 | $expr = $this->_parseLogicalOr(); |
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| 162 | $this->_recurseLeave(); |
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| 163 | return $expr; |
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| 164 | } |
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| 165 | |||
| 166 | /** |
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| 167 | * Parse logical or (or) |
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| 168 | * |
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| 169 | * @return AbstractExpression |
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| 170 | */ |
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| 171 | private function _parseLogicalOr() |
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| 172 | { |
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| 173 | $this->_recurseEnter(); |
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| 174 | $left = $this->_parseLogicalAnd(); |
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| 175 | while ($this->_tokenIdentifierIs(ODataConstants::KEYWORD_OR)) { |
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| 176 | $logicalOpToken = clone $this->_getCurrentToken(); |
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| 177 | $this->_lexer->nextToken(); |
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| 178 | $right = $this->_parseLogicalAnd(); |
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| 179 | FunctionDescription::verifyLogicalOpArguments($logicalOpToken, $left, $right); |
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| 180 | $left = new LogicalExpression( |
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| 181 | $left, $right, ExpressionType::OR_LOGICAL |
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| 182 | ); |
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| 183 | } |
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| 184 | |||
| 185 | $this->_recurseLeave(); |
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| 186 | return $left; |
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| 187 | } |
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| 188 | |||
| 189 | /** |
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| 190 | * Parse logical and (and). |
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| 191 | * |
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| 192 | * @return AbstractExpression |
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| 193 | */ |
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| 194 | private function _parseLogicalAnd() |
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| 195 | { |
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| 196 | $this->_recurseEnter(); |
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| 197 | $left = $this->_parseComparison(); |
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| 198 | while ($this->_tokenIdentifierIs(ODataConstants::KEYWORD_AND)) { |
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| 199 | $logicalOpToken = clone $this->_getCurrentToken(); |
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| 200 | $this->_lexer->nextToken(); |
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| 201 | $right = $this->_parseComparison(); |
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| 202 | FunctionDescription::verifyLogicalOpArguments($logicalOpToken, $left, $right); |
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| 203 | $left = new LogicalExpression($left, $right, ExpressionType::AND_LOGICAL); |
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| 204 | } |
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| 205 | |||
| 206 | $this->_recurseLeave(); |
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| 207 | return $left; |
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| 208 | } |
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| 209 | |||
| 210 | /** |
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| 211 | * Parse comparison operation (eq, ne, gt, ge, lt, le) |
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| 212 | * TODO: http://host/service/Products?$filter=Name in ('Milk', 'Cheese') |
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| 213 | * TODO: http://docs.oasis-open.org/odata/odata/v4.01/odata-v4.01-part2-url-conventions.html |
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| 214 | * @return AbstractExpression |
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| 215 | */ |
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| 216 | private function _parseComparison() |
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| 217 | { |
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| 218 | $this->_recurseEnter(); |
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| 219 | $left = $this->_parseAdditive(); |
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| 220 | while ($this->_getCurrentToken()->isComparisonOperator()) { |
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| 221 | $comparisonToken = clone $this->_getCurrentToken(); |
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| 222 | $this->_lexer->nextToken(); |
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| 223 | $right = $this->_parseAdditive(); |
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| 224 | $left = self::_generateComparisonExpression( |
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| 225 | $left, $right, |
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| 226 | $comparisonToken, $this->_isPHPExpressionProvider |
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| 227 | ); |
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| 228 | } |
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| 229 | |||
| 230 | $this->_recurseLeave(); |
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| 231 | return $left; |
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| 232 | } |
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| 233 | |||
| 234 | /** |
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| 235 | * Parse additive operation (add, sub). |
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| 236 | * |
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| 237 | * @return AbstractExpression |
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| 238 | */ |
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| 239 | private function _parseAdditive() |
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| 240 | { |
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| 241 | $this->_recurseEnter(); |
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| 242 | $left = $this->_parseMultiplicative(); |
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| 243 | while ($this->_getCurrentToken()->identifierIs(ODataConstants::KEYWORD_ADD) |
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| 244 | || $this->_getCurrentToken()->identifierIs(ODataConstants::KEYWORD_SUB)) { |
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| 245 | $additiveToken = clone $this->_getCurrentToken(); |
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| 246 | $this->_lexer->nextToken(); |
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| 247 | $right = $this->_parseMultiplicative(); |
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| 248 | $opReturnType = FunctionDescription::verifyAndPromoteArithmeticOpArguments($additiveToken, $left, $right); |
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| 249 | if ($additiveToken->identifierIs(ODataConstants::KEYWORD_ADD)) { |
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| 250 | $left = new ArithmeticExpression($left, $right, ExpressionType::ADD, $opReturnType); |
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| 251 | } else { |
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| 252 | $left = new ArithmeticExpression($left, $right, ExpressionType::SUBTRACT, $opReturnType); |
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| 253 | } |
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| 254 | } |
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| 255 | |||
| 256 | $this->_recurseLeave(); |
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| 257 | return $left; |
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| 258 | } |
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| 259 | |||
| 260 | /** |
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| 261 | * Parse multipicative operators (mul, div, mod) |
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| 262 | * |
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| 263 | * @return AbstractExpression |
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| 264 | */ |
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| 265 | private function _parseMultiplicative() |
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| 266 | { |
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| 267 | $this->_recurseEnter(); |
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| 268 | $left = $this->_parseUnary(); |
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| 269 | while ($this->_getCurrentToken()->identifierIs(ODataConstants::KEYWORD_MULTIPLY) |
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| 270 | || $this->_getCurrentToken()->identifierIs(ODataConstants::KEYWORD_DIVIDE) |
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| 271 | || $this->_getCurrentToken()->identifierIs(ODataConstants::KEYWORD_MODULO) |
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| 272 | ) { |
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| 273 | $multiplicativeToken = clone $this->_getCurrentToken(); |
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| 274 | $this->_lexer->nextToken(); |
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| 275 | $right = $this->_parseUnary(); |
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| 276 | $opReturnType = FunctionDescription::verifyAndPromoteArithmeticOpArguments( |
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| 277 | $multiplicativeToken, $left, $right |
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| 278 | ); |
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| 279 | if ($multiplicativeToken->identifierIs(ODataConstants::KEYWORD_MULTIPLY)) { |
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| 280 | $left = new ArithmeticExpression($left, $right, ExpressionType::MULTIPLY, $opReturnType); |
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| 281 | } else if ($multiplicativeToken->identifierIs(ODataConstants::KEYWORD_DIVIDE)) { |
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| 282 | $left = new ArithmeticExpression($left, $right, ExpressionType::DIVIDE, $opReturnType); |
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| 283 | } else { |
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| 284 | $left = new ArithmeticExpression($left, $right, ExpressionType::MODULO, $opReturnType); |
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| 285 | } |
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| 286 | } |
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| 287 | |||
| 288 | $this->_recurseLeave(); |
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| 289 | return $left; |
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| 290 | } |
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| 291 | |||
| 292 | /** |
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| 293 | * Parse unary operator (- ,not) |
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| 294 | * |
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| 295 | * @return AbstractExpression |
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| 296 | */ |
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| 297 | private function _parseUnary() |
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| 298 | { |
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| 299 | $this->_recurseEnter(); |
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| 300 | |||
| 301 | if ($this->_getCurrentToken()->Id == ExpressionTokenId::MINUS |
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| 302 | || $this->_getCurrentToken()->identifierIs(ODataConstants::KEYWORD_NOT) |
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| 303 | ) { |
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| 304 | $op = clone $this->_getCurrentToken(); |
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| 305 | $this->_lexer->nextToken(); |
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| 306 | if ($op->Id == ExpressionTokenId::MINUS |
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| 307 | && (ExpressionLexer::isNumeric($this->_getCurrentToken()->Id)) |
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| 308 | ) { |
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| 309 | $numberLiteral = $this->_getCurrentToken(); |
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| 310 | $numberLiteral->Text = '-' . $numberLiteral->Text; |
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| 311 | $numberLiteral->Position = $op->Position; |
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| 312 | $v = $this->_getCurrentToken(); |
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| 313 | $this->_setCurrentToken($numberLiteral); |
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| 314 | $this->_recurseLeave(); |
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| 315 | return $this->_parsePrimary(); |
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| 316 | } |
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| 317 | |||
| 318 | $expr = $this->_parsePrimary(); |
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| 319 | FunctionDescription::validateUnaryOpArguments($op, $expr); |
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| 320 | if ($op->Id == ExpressionTokenId::MINUS) { |
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| 321 | $expr = new UnaryExpression($expr, ExpressionType::NEGATE, $expr->getType()); |
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| 322 | } else { |
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| 323 | $expr = new UnaryExpression($expr, ExpressionType::NOT_LOGICAL, new Boolean()); |
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| 324 | } |
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| 325 | |||
| 326 | $this->_recurseLeave(); |
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| 327 | return $expr; |
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| 328 | } |
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| 329 | |||
| 330 | $this->_recurseLeave(); |
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| 331 | return $this->_parsePrimary(); |
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| 332 | } |
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| 333 | |||
| 334 | /** |
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| 335 | * Start parsing the primary. |
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| 336 | * |
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| 337 | * @return AbstractExpression |
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| 338 | */ |
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| 339 | private function _parsePrimary() |
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| 340 | { |
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| 341 | $this->_recurseEnter(); |
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| 342 | $expr = $this->_parsePrimaryStart(); |
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| 343 | while (true) { |
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| 344 | if ($this->_getCurrentToken()->Id == ExpressionTokenId::SLASH) { |
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| 345 | $this->_lexer->nextToken(); |
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| 346 | $expr = $this->_parsePropertyAccess($expr); |
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| 347 | } else { |
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| 348 | break; |
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| 349 | } |
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| 350 | } |
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| 351 | |||
| 352 | $this->_recurseLeave(); |
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| 353 | return $expr; |
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| 354 | } |
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| 355 | |||
| 356 | /** |
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| 357 | * Parse primary tokens [literals, identifiers (e.g. function call), open param for sub expressions] |
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| 358 | * |
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| 359 | * |
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| 360 | * @return AbstractExpression |
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| 361 | */ |
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| 362 | private function _parsePrimaryStart() |
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| 363 | { |
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| 364 | switch ($this->_lexer->getCurrentToken()->Id) { |
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| 365 | case ExpressionTokenId::BOOLEAN_LITERAL: |
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| 366 | return $this->_parseTypedLiteral(new Boolean()); |
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| 367 | case ExpressionTokenId::DATETIME_LITERAL: |
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| 368 | return $this->_parseTypedLiteral(new DateTime()); |
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| 369 | case ExpressionTokenId::DECIMAL_LITERAL: |
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| 370 | return $this->_parseTypedLiteral(new Decimal()); |
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| 371 | case ExpressionTokenId::NULL_LITERAL: |
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| 372 | return $this->_parseNullLiteral(); |
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| 373 | case ExpressionTokenId::IDENTIFIER: |
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| 374 | return $this->_parseIdentifier(); |
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| 375 | case ExpressionTokenId::STRING_LITERAL: |
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| 376 | return $this->_parseTypedLiteral(new StringType()); |
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| 377 | case ExpressionTokenId::INT64_LITERAL: |
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| 378 | return $this->_parseTypedLiteral(new Int64()); |
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| 379 | case ExpressionTokenId::INTEGER_LITERAL: |
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| 380 | return $this->_parseTypedLiteral(new Int32()); |
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| 381 | case ExpressionTokenId::DOUBLE_LITERAL: |
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| 382 | return $this->_parseTypedLiteral(new Double()); |
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| 383 | case ExpressionTokenId::SINGLE_LITERAL: |
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| 384 | return $this->_parseTypedLiteral(new Single()); |
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| 385 | case ExpressionTokenId::GUID_LITERAL: |
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| 386 | return $this->_parseTypedLiteral(new Guid()); |
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| 387 | case ExpressionTokenId::ARRAY_LITERAL: |
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| 388 | return $this->_parseTypedLiteral(new ArrayType()); |
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| 389 | case ExpressionTokenId::BINARY_LITERAL: |
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| 390 | throw new NotImplementedException( |
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| 391 | 'Support for binary is not implemented' |
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| 392 | ); |
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| 393 | //return $this->_parseTypedLiteral(new Binary()); |
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| 394 | case ExpressionTokenId::OPENPARAM: |
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| 395 | return $this->_parseParenExpression(); |
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| 396 | default: |
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| 397 | throw ODataException::createSyntaxError("Expression expected."); |
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| 398 | } |
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| 399 | } |
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| 400 | |||
| 401 | /** |
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| 402 | * Parse Sub expression. |
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| 403 | * |
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| 404 | * @return AbstractExpression |
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| 405 | */ |
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| 406 | private function _parseParenExpression() |
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| 407 | { |
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| 408 | if ($this->_getCurrentToken()->Id != ExpressionTokenId::OPENPARAM) { |
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| 409 | throw ODataException::createSyntaxError("Open parenthesis expected."); |
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| 410 | } |
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| 411 | |||
| 412 | $this->_lexer->nextToken(); |
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| 413 | $expr = $this->_parseExpression(); |
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| 414 | if ($this->_getCurrentToken()->Id == ExpressionTokenId::COMMA) { |
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| 415 | $expr = [$expr]; |
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| 416 | while ($this->_getCurrentToken()->Id == ExpressionTokenId::COMMA) |
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| 417 | { |
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| 418 | $this->_lexer->nextToken(); |
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| 419 | $expr[] = $this->_parseExpression(); |
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| 420 | } |
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| 421 | } |
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| 422 | if ($this->_getCurrentToken()->Id != ExpressionTokenId::CLOSEPARAM) { |
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| 423 | throw ODataException::createSyntaxError("Close parenthesis expected."); |
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| 424 | } |
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| 425 | |||
| 426 | $this->_lexer->nextToken(); |
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| 427 | return $expr; |
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| 428 | } |
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| 429 | |||
| 430 | /** |
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| 431 | * Parse an identifier |
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| 432 | * |
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| 433 | * @return AbstractExpression |
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| 434 | */ |
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| 435 | private function _parseIdentifier() |
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| 436 | { |
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| 437 | $this->_validateToken(ExpressionTokenId::IDENTIFIER); |
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| 438 | |||
| 439 | // An open paren here would indicate calling a method |
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| 440 | $identifierIsFunction = $this->_lexer->peekNextToken()->Id == ExpressionTokenId::OPENPARAM; |
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| 441 | if ($identifierIsFunction) { |
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| 442 | return $this->_parseIdentifierAsFunction(); |
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| 443 | } else { |
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| 444 | return $this->_parsePropertyAccess(null); |
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| 445 | } |
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| 446 | } |
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| 447 | |||
| 448 | /** |
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| 449 | * Parse a property access |
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| 450 | * |
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| 451 | * @param PropertyAccessExpression $parentExpression Parent expression. |
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| 452 | * |
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| 453 | * @throws ODataException |
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| 454 | * |
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| 455 | * @return PropertyAccessExpression |
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| 456 | */ |
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| 457 | private function _parsePropertyAccess($parentExpression) |
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| 493 | } |
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| 494 | |||
| 495 | /** |
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| 496 | * Try to parse an identifier which is followed by an opern bracket as |
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| 497 | * astoria URI function call. |
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| 498 | * |
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| 499 | * @return AbstractExpression |
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| 500 | * |
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| 501 | * @throws ODataException |
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| 502 | */ |
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| 503 | private function _parseIdentifierAsFunction() |
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| 504 | { |
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| 505 | $functionToken = clone $this->_getCurrentToken(); |
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| 506 | $functions = FunctionDescription::verifyFunctionExists($functionToken); |
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| 507 | $this->_lexer->nextToken(); |
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| 508 | $paramExpressions = $this->_parseArgumentList(); |
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| 509 | $function = FunctionDescription::verifyFunctionCallOpArguments( |
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| 510 | $functions, $paramExpressions, $functionToken |
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| 511 | ); |
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| 512 | return new FunctionCallExpression($function, $paramExpressions); |
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| 513 | } |
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| 514 | |||
| 515 | /** |
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| 516 | * Start parsing argument list of a function-call |
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| 517 | * |
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| 518 | * @return array<AbstractExpression> |
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| 519 | */ |
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| 520 | private function _parseArgumentList() |
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| 521 | { |
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| 522 | if ($this->_getCurrentToken()->Id != ExpressionTokenId::OPENPARAM) { |
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| 523 | throw ODataException::createSyntaxError("Open parenthesis expected."); |
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| 524 | } |
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| 525 | |||
| 526 | $this->_lexer->nextToken(); |
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| 527 | $args |
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| 528 | = $this->_getCurrentToken()->Id != ExpressionTokenId::CLOSEPARAM |
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| 529 | ? $this->_parseArguments() : array(); |
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| 530 | if ($this->_getCurrentToken()->Id != ExpressionTokenId::CLOSEPARAM) { |
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| 531 | throw ODataException::createSyntaxError("Close parenthesis expected."); |
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| 532 | } |
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| 533 | |||
| 534 | $this->_lexer->nextToken(); |
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| 535 | return $args; |
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| 536 | } |
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| 537 | |||
| 538 | /** |
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| 539 | * Parse arguments of a function-call. |
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| 540 | * |
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| 541 | * @return array<AbstractExpression> |
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| 542 | */ |
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| 543 | private function _parseArguments() |
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| 544 | { |
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| 545 | $argList = array(); |
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| 546 | while (true) { |
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| 547 | $argList[] = $this->_parseExpression(); |
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| 548 | if ($this->_getCurrentToken()->Id != ExpressionTokenId::COMMA) { |
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| 549 | break; |
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| 550 | } |
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| 551 | |||
| 552 | $this->_lexer->nextToken(); |
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| 553 | } |
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| 554 | |||
| 555 | return $argList; |
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| 556 | } |
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| 557 | |||
| 558 | /** |
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| 559 | * Parse primitive type literal. |
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| 560 | * |
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| 561 | * @param IType $targetType Expected type of the current literal. |
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| 562 | * |
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| 563 | * @return AbstractExpression |
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| 564 | * |
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| 565 | * @throws ODataException |
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| 566 | */ |
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| 567 | private function _parseTypedLiteral(IType $targetType) |
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| 568 | { |
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| 569 | $literal = $this->_lexer->getCurrentToken()->Text; |
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| 570 | $outVal = null; |
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| 571 | if (!$targetType->validate($literal, $outVal)) { |
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| 572 | throw ODataException::createSyntaxError( |
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| 573 | Messages::expressionParserUnrecognizedLiteral( |
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| 574 | $targetType->getFullTypeName(), |
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| 575 | $literal, |
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| 576 | $this->_lexer->getCurrentToken()->Position |
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| 577 | ) |
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| 578 | ); |
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| 579 | } |
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| 580 | |||
| 581 | $result = new ConstantExpression($outVal, $targetType); |
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| 582 | $this->_lexer->nextToken(); |
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| 583 | return $result; |
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| 584 | } |
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| 585 | |||
| 586 | /** |
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| 587 | * Parse null literal. |
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| 588 | * |
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| 589 | * @return ConstantExpression |
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| 590 | */ |
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| 591 | private function _parseNullLiteral() |
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| 595 | } |
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| 596 | |||
| 597 | /** |
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| 598 | * Check the current token is of a specific kind |
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| 599 | * |
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| 600 | * @param ExpressionTokenId $expressionTokenId Token to check |
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| 601 | * with current token. |
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| 602 | * |
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| 603 | * @return boolean |
||
| 604 | */ |
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| 605 | private function _tokenIdentifierIs($expressionTokenId) |
||
| 606 | { |
||
| 607 | return $this->_getCurrentToken()->identifierIs($expressionTokenId); |
||
| 608 | } |
||
| 609 | |||
| 610 | /** |
||
| 611 | * Validate the current token |
||
| 612 | * |
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| 613 | * @param ExpressionTokenId $expressionTokenId Token to check |
||
| 614 | * with current token. |
||
| 615 | * |
||
| 616 | * @return void |
||
| 617 | * |
||
| 618 | * @throws ODataException |
||
| 619 | */ |
||
| 620 | private function _validateToken($expressionTokenId) |
||
| 624 | } |
||
| 625 | } |
||
| 626 | |||
| 627 | /** |
||
| 628 | * Increment recursion count and throw error if beyond limit |
||
| 629 | * |
||
| 630 | * @return void |
||
| 631 | * |
||
| 632 | * @throws ODataException If max recursion limit hits. |
||
| 633 | */ |
||
| 634 | private function _recurseEnter() |
||
| 635 | { |
||
| 636 | $this->_recursionDepth++; |
||
| 637 | if ($this->_recursionDepth == self::RECURSION_LIMIT) { |
||
| 638 | throw ODataException::createSyntaxError("Recursion limit reached."); |
||
| 639 | } |
||
| 640 | } |
||
| 641 | |||
| 642 | /** |
||
| 643 | * Decrement recursion count |
||
| 644 | * |
||
| 645 | * @return void |
||
| 646 | */ |
||
| 647 | private function _recurseLeave() |
||
| 648 | { |
||
| 649 | $this->_recursionDepth--; |
||
| 650 | } |
||
| 651 | |||
| 652 | /** |
||
| 653 | * Generates Comparison Expression |
||
| 654 | * |
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| 655 | * @param AbstractExpression $left The LHS expression. |
||
| 656 | * @param AbstractExpression $right The RHS expression. |
||
| 657 | * @param ExpressionToken $expressionToken The comparison expression token. |
||
| 658 | * @param boolean $isPHPExpressionProvider |
||
| 659 | * |
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| 660 | * @return AbstractExpression |
||
| 661 | */ |
||
| 662 | private static function _generateComparisonExpression($left, $right, $expressionToken, $isPHPExpressionProvider) |
||
| 782 | ); |
||
| 783 | } |
||
| 784 | } |
||
| 785 | |||
| 786 | } |
||
| 787 |
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