/** * Compiles the ExpressionNode, returning an array with * exactly two keys which contain strings: * * - "initialization" which contains variable initializations * - "execution" which contains the execution (that uses the variables) * * The expression and matches can be read from the local * instance - and the RenderingContext and other APIs * can be accessed via the TemplateCompiler. * * @param TemplateCompiler $templateCompiler * @return array */ public function compile(TemplateCompiler $templateCompiler) { $handlerClass = get_class($this); $expressionVariable = $templateCompiler->variableName('string'); $matchesVariable = $templateCompiler->variableName('array'); $initializationPhpCode = sprintf('// Rendering %s node' . chr(10), $handlerClass); $initializationPhpCode .= sprintf('%s = \'%s\';', $expressionVariable, $this->getExpression()) . chr(10); $initializationPhpCode .= sprintf('%s = %s;', $matchesVariable, var_export($this->getMatches(), true)) . chr(10); return ['initialization' => $initializationPhpCode, 'execution' => sprintf('\\%s::evaluateExpression($renderingContext, %s, %s)', $handlerClass, $expressionVariable, $matchesVariable)]; }
/** * This ViewHelper is used a *lot* because it is used by the escape interceptor. * Therefore we render it to raw PHP code during compilation * * @param string $argumentsName * @param string $closureName * @param string $initializationPhpCode * @param ViewHelperNode $node * @param TemplateCompiler $compiler * @return string */ public function compile($argumentsName, $closureName, &$initializationPhpCode, ViewHelperNode $node, TemplateCompiler $compiler) { $valueVariableName = $compiler->variableName('value'); $initializationPhpCode .= sprintf('%1$s = (%2$s[\'value\'] !== NULL ? %2$s[\'value\'] : %3$s());', $valueVariableName, $argumentsName, $closureName) . chr(10); return sprintf('!is_string(%1$s) && !(is_object(%1$s) && method_exists(%1$s, \'__toString\')) ? %1$s : htmlspecialchars(%1$s, (%2$s[\'keepQuotes\'] ? ENT_NOQUOTES : ENT_QUOTES), %2$s[\'encoding\'], %2$s[\'doubleEncode\'])', $valueVariableName, $argumentsName); }
/** * Compiles the ExpressionNode, returning an array with * exactly two keys which contain strings: * * - "initialization" which contains variable initializations * - "execution" which contains the execution (that uses the variables) * * The expression and matches can be read from the local * instance - and the RenderingContext and other APIs * can be accessed via the TemplateCompiler. * * @param TemplateCompiler $templateCompiler * @return string */ public function compile(TemplateCompiler $templateCompiler) { $parts = preg_split('/([\\?:])/s', $this->getExpression()); $parts = array_map([__CLASS__, 'trimPart'], $parts); list($check, $then, $else) = $parts; $matchesVariable = $templateCompiler->variableName('array'); $initializationPhpCode = '// Rendering TernaryExpression node' . chr(10); $initializationPhpCode .= sprintf('%s = %s;', $matchesVariable, var_export($this->getMatches(), true)) . chr(10); $parser = new BooleanParser(); $compiledExpression = $parser->compile($check); $functionName = $templateCompiler->variableName('ternaryExpression'); $initializationPhpCode .= sprintf('%s = function($context, $renderingContext) { if (%s::convertToBoolean(' . $compiledExpression . ', $renderingContext) === TRUE) { return %s::getTemplateVariableOrValueItself(%s, $renderingContext); } else { return %s::getTemplateVariableOrValueItself(%s, $renderingContext); } };' . chr(10), $functionName, BooleanNode::class, static::class, var_export($then, true), static::class, var_export($else, true)); return ['initialization' => $initializationPhpCode, 'execution' => sprintf('%s(%s::gatherContext($renderingContext, %s[1]), $renderingContext)', $functionName, static::class, $matchesVariable)]; }
/** * @test */ public function testVariableNameDelegatesToNodeConverter() { $instance = new TemplateCompiler(); $nodeConverter = $this->getMock(NodeConverter::class, array('variableName'), array($instance)); $nodeConverter->expects($this->once())->method('variableName')->willReturnArgument(0); $instance->setNodeConverter($nodeConverter); $this->assertEquals('foobar', $instance->variableName('foobar')); }
/** * Compiles the node structure to a native switch * statement which evaluates closures for each * case comparison and renders child node closures * only when value matches. * * @param string $argumentsName * @param string $closureName * @param string $initializationPhpCode * @param ViewHelperNode $node * @param TemplateCompiler $compiler * @return string */ public function compile($argumentsName, $closureName, &$initializationPhpCode, ViewHelperNode $node, TemplateCompiler $compiler) { $phpCode = 'call_user_func_array(function($arguments) use ($renderingContext, $self) {' . PHP_EOL . 'switch ($arguments[\'expression\']) {' . PHP_EOL; $expressionEvaluationClosureName = $compiler->variableName('switchExpressionClosure'); foreach ($node->getChildNodes() as $childNode) { if ($this->isDefaultCaseNode($childNode)) { $childrenClosure = $compiler->wrapChildNodesInClosure($childNode); $phpCode .= sprintf('default: return call_user_func(%s);', $childrenClosure) . PHP_EOL; } elseif ($this->isCaseNode($childNode)) { $valueClosure = $compiler->wrapViewHelperNodeArgumentEvaluationInClosure($childNode, 'value'); $childrenClosure = $compiler->wrapChildNodesInClosure($childNode); $phpCode .= sprintf('case call_user_func(%s): return call_user_func(%s);', $valueClosure, $childrenClosure, $compiler->getNodeConverter()->convert($childNode)) . PHP_EOL; } } $phpCode .= '}' . PHP_EOL; $phpCode .= sprintf('}, array(%s))', $argumentsName); return $phpCode; }