From 92561d7f36508b7e0271926e417adf0e2e53916b Mon Sep 17 00:00:00 2001 From: Appleman1234 Date: Sun, 25 Sep 2022 13:22:40 +1000 Subject: Initial attempt a switch to composer and PHP-8.1 compatibility --- inc/lib/Twig/ExpressionParser.php | 744 -------------------------------------- 1 file changed, 744 deletions(-) delete mode 100644 inc/lib/Twig/ExpressionParser.php (limited to 'inc/lib/Twig/ExpressionParser.php') diff --git a/inc/lib/Twig/ExpressionParser.php b/inc/lib/Twig/ExpressionParser.php deleted file mode 100644 index fe4a9b4a..00000000 --- a/inc/lib/Twig/ExpressionParser.php +++ /dev/null @@ -1,744 +0,0 @@ - - * - * @internal - */ -class Twig_ExpressionParser -{ - const OPERATOR_LEFT = 1; - const OPERATOR_RIGHT = 2; - - protected $parser; - protected $unaryOperators; - protected $binaryOperators; - - private $env; - - public function __construct(Twig_Parser $parser, $env = null) - { - $this->parser = $parser; - - if ($env instanceof Twig_Environment) { - $this->env = $env; - $this->unaryOperators = $env->getUnaryOperators(); - $this->binaryOperators = $env->getBinaryOperators(); - } else { - @trigger_error('Passing the operators as constructor arguments to '.__METHOD__.' is deprecated since version 1.27. Pass the environment instead.', E_USER_DEPRECATED); - - $this->env = $parser->getEnvironment(); - $this->unaryOperators = func_get_arg(1); - $this->binaryOperators = func_get_arg(2); - } - } - - public function parseExpression($precedence = 0) - { - $expr = $this->getPrimary(); - $token = $this->parser->getCurrentToken(); - while ($this->isBinary($token) && $this->binaryOperators[$token->getValue()]['precedence'] >= $precedence) { - $op = $this->binaryOperators[$token->getValue()]; - $this->parser->getStream()->next(); - - if ('is not' === $token->getValue()) { - $expr = $this->parseNotTestExpression($expr); - } elseif ('is' === $token->getValue()) { - $expr = $this->parseTestExpression($expr); - } elseif (isset($op['callable'])) { - $expr = call_user_func($op['callable'], $this->parser, $expr); - } else { - $expr1 = $this->parseExpression(self::OPERATOR_LEFT === $op['associativity'] ? $op['precedence'] + 1 : $op['precedence']); - $class = $op['class']; - $expr = new $class($expr, $expr1, $token->getLine()); - } - - $token = $this->parser->getCurrentToken(); - } - - if (0 === $precedence) { - return $this->parseConditionalExpression($expr); - } - - return $expr; - } - - protected function getPrimary() - { - $token = $this->parser->getCurrentToken(); - - if ($this->isUnary($token)) { - $operator = $this->unaryOperators[$token->getValue()]; - $this->parser->getStream()->next(); - $expr = $this->parseExpression($operator['precedence']); - $class = $operator['class']; - - return $this->parsePostfixExpression(new $class($expr, $token->getLine())); - } elseif ($token->test(Twig_Token::PUNCTUATION_TYPE, '(')) { - $this->parser->getStream()->next(); - $expr = $this->parseExpression(); - $this->parser->getStream()->expect(Twig_Token::PUNCTUATION_TYPE, ')', 'An opened parenthesis is not properly closed'); - - return $this->parsePostfixExpression($expr); - } - - return $this->parsePrimaryExpression(); - } - - protected function parseConditionalExpression($expr) - { - while ($this->parser->getStream()->nextIf(Twig_Token::PUNCTUATION_TYPE, '?')) { - if (!$this->parser->getStream()->nextIf(Twig_Token::PUNCTUATION_TYPE, ':')) { - $expr2 = $this->parseExpression(); - if ($this->parser->getStream()->nextIf(Twig_Token::PUNCTUATION_TYPE, ':')) { - $expr3 = $this->parseExpression(); - } else { - $expr3 = new Twig_Node_Expression_Constant('', $this->parser->getCurrentToken()->getLine()); - } - } else { - $expr2 = $expr; - $expr3 = $this->parseExpression(); - } - - $expr = new Twig_Node_Expression_Conditional($expr, $expr2, $expr3, $this->parser->getCurrentToken()->getLine()); - } - - return $expr; - } - - protected function isUnary(Twig_Token $token) - { - return $token->test(Twig_Token::OPERATOR_TYPE) && isset($this->unaryOperators[$token->getValue()]); - } - - protected function isBinary(Twig_Token $token) - { - return $token->test(Twig_Token::OPERATOR_TYPE) && isset($this->binaryOperators[$token->getValue()]); - } - - public function parsePrimaryExpression() - { - $token = $this->parser->getCurrentToken(); - switch ($token->getType()) { - case Twig_Token::NAME_TYPE: - $this->parser->getStream()->next(); - switch ($token->getValue()) { - case 'true': - case 'TRUE': - $node = new Twig_Node_Expression_Constant(true, $token->getLine()); - break; - - case 'false': - case 'FALSE': - $node = new Twig_Node_Expression_Constant(false, $token->getLine()); - break; - - case 'none': - case 'NONE': - case 'null': - case 'NULL': - $node = new Twig_Node_Expression_Constant(null, $token->getLine()); - break; - - default: - if ('(' === $this->parser->getCurrentToken()->getValue()) { - $node = $this->getFunctionNode($token->getValue(), $token->getLine()); - } else { - $node = new Twig_Node_Expression_Name($token->getValue(), $token->getLine()); - } - } - break; - - case Twig_Token::NUMBER_TYPE: - $this->parser->getStream()->next(); - $node = new Twig_Node_Expression_Constant($token->getValue(), $token->getLine()); - break; - - case Twig_Token::STRING_TYPE: - case Twig_Token::INTERPOLATION_START_TYPE: - $node = $this->parseStringExpression(); - break; - - case Twig_Token::OPERATOR_TYPE: - if (preg_match(Twig_Lexer::REGEX_NAME, $token->getValue(), $matches) && $matches[0] == $token->getValue()) { - // in this context, string operators are variable names - $this->parser->getStream()->next(); - $node = new Twig_Node_Expression_Name($token->getValue(), $token->getLine()); - break; - } elseif (isset($this->unaryOperators[$token->getValue()])) { - $class = $this->unaryOperators[$token->getValue()]['class']; - - $ref = new ReflectionClass($class); - $negClass = 'Twig_Node_Expression_Unary_Neg'; - $posClass = 'Twig_Node_Expression_Unary_Pos'; - if (!(in_array($ref->getName(), array($negClass, $posClass)) || $ref->isSubclassOf($negClass) || $ref->isSubclassOf($posClass))) { - throw new Twig_Error_Syntax(sprintf('Unexpected unary operator "%s".', $token->getValue()), $token->getLine(), $this->parser->getStream()->getSourceContext()); - } - - $this->parser->getStream()->next(); - $expr = $this->parsePrimaryExpression(); - - $node = new $class($expr, $token->getLine()); - break; - } - - // no break - default: - if ($token->test(Twig_Token::PUNCTUATION_TYPE, '[')) { - $node = $this->parseArrayExpression(); - } elseif ($token->test(Twig_Token::PUNCTUATION_TYPE, '{')) { - $node = $this->parseHashExpression(); - } elseif ($token->test(Twig_Token::OPERATOR_TYPE, '=') && ('==' === $this->parser->getStream()->look(-1)->getValue() || '!=' === $this->parser->getStream()->look(-1)->getValue())) { - throw new Twig_Error_Syntax(sprintf('Unexpected operator of value "%s". Did you try to use "===" or "!==" for strict comparison? Use "is same as(value)" instead.', $token->getValue()), $token->getLine(), $this->parser->getStream()->getSourceContext()); - } else { - throw new Twig_Error_Syntax(sprintf('Unexpected token "%s" of value "%s".', Twig_Token::typeToEnglish($token->getType()), $token->getValue()), $token->getLine(), $this->parser->getStream()->getSourceContext()); - } - } - - return $this->parsePostfixExpression($node); - } - - public function parseStringExpression() - { - $stream = $this->parser->getStream(); - - $nodes = array(); - // a string cannot be followed by another string in a single expression - $nextCanBeString = true; - while (true) { - if ($nextCanBeString && $token = $stream->nextIf(Twig_Token::STRING_TYPE)) { - $nodes[] = new Twig_Node_Expression_Constant($token->getValue(), $token->getLine()); - $nextCanBeString = false; - } elseif ($stream->nextIf(Twig_Token::INTERPOLATION_START_TYPE)) { - $nodes[] = $this->parseExpression(); - $stream->expect(Twig_Token::INTERPOLATION_END_TYPE); - $nextCanBeString = true; - } else { - break; - } - } - - $expr = array_shift($nodes); - foreach ($nodes as $node) { - $expr = new Twig_Node_Expression_Binary_Concat($expr, $node, $node->getTemplateLine()); - } - - return $expr; - } - - public function parseArrayExpression() - { - $stream = $this->parser->getStream(); - $stream->expect(Twig_Token::PUNCTUATION_TYPE, '[', 'An array element was expected'); - - $node = new Twig_Node_Expression_Array(array(), $stream->getCurrent()->getLine()); - $first = true; - while (!$stream->test(Twig_Token::PUNCTUATION_TYPE, ']')) { - if (!$first) { - $stream->expect(Twig_Token::PUNCTUATION_TYPE, ',', 'An array element must be followed by a comma'); - - // trailing ,? - if ($stream->test(Twig_Token::PUNCTUATION_TYPE, ']')) { - break; - } - } - $first = false; - - $node->addElement($this->parseExpression()); - } - $stream->expect(Twig_Token::PUNCTUATION_TYPE, ']', 'An opened array is not properly closed'); - - return $node; - } - - public function parseHashExpression() - { - $stream = $this->parser->getStream(); - $stream->expect(Twig_Token::PUNCTUATION_TYPE, '{', 'A hash element was expected'); - - $node = new Twig_Node_Expression_Array(array(), $stream->getCurrent()->getLine()); - $first = true; - while (!$stream->test(Twig_Token::PUNCTUATION_TYPE, '}')) { - if (!$first) { - $stream->expect(Twig_Token::PUNCTUATION_TYPE, ',', 'A hash value must be followed by a comma'); - - // trailing ,? - if ($stream->test(Twig_Token::PUNCTUATION_TYPE, '}')) { - break; - } - } - $first = false; - - // a hash key can be: - // - // * a number -- 12 - // * a string -- 'a' - // * a name, which is equivalent to a string -- a - // * an expression, which must be enclosed in parentheses -- (1 + 2) - if (($token = $stream->nextIf(Twig_Token::STRING_TYPE)) || ($token = $stream->nextIf(Twig_Token::NAME_TYPE)) || $token = $stream->nextIf(Twig_Token::NUMBER_TYPE)) { - $key = new Twig_Node_Expression_Constant($token->getValue(), $token->getLine()); - } elseif ($stream->test(Twig_Token::PUNCTUATION_TYPE, '(')) { - $key = $this->parseExpression(); - } else { - $current = $stream->getCurrent(); - - throw new Twig_Error_Syntax(sprintf('A hash key must be a quoted string, a number, a name, or an expression enclosed in parentheses (unexpected token "%s" of value "%s".', Twig_Token::typeToEnglish($current->getType()), $current->getValue()), $current->getLine(), $stream->getSourceContext()); - } - - $stream->expect(Twig_Token::PUNCTUATION_TYPE, ':', 'A hash key must be followed by a colon (:)'); - $value = $this->parseExpression(); - - $node->addElement($value, $key); - } - $stream->expect(Twig_Token::PUNCTUATION_TYPE, '}', 'An opened hash is not properly closed'); - - return $node; - } - - public function parsePostfixExpression($node) - { - while (true) { - $token = $this->parser->getCurrentToken(); - if (Twig_Token::PUNCTUATION_TYPE == $token->getType()) { - if ('.' == $token->getValue() || '[' == $token->getValue()) { - $node = $this->parseSubscriptExpression($node); - } elseif ('|' == $token->getValue()) { - $node = $this->parseFilterExpression($node); - } else { - break; - } - } else { - break; - } - } - - return $node; - } - - public function getFunctionNode($name, $line) - { - switch ($name) { - case 'parent': - $this->parseArguments(); - if (!count($this->parser->getBlockStack())) { - throw new Twig_Error_Syntax('Calling "parent" outside a block is forbidden.', $line, $this->parser->getStream()->getSourceContext()); - } - - if (!$this->parser->getParent() && !$this->parser->hasTraits()) { - throw new Twig_Error_Syntax('Calling "parent" on a template that does not extend nor "use" another template is forbidden.', $line, $this->parser->getStream()->getSourceContext()); - } - - return new Twig_Node_Expression_Parent($this->parser->peekBlockStack(), $line); - case 'block': - $args = $this->parseArguments(); - if (count($args) < 1) { - throw new Twig_Error_Syntax('The "block" function takes one argument (the block name).', $line, $this->parser->getStream()->getSourceContext()); - } - - return new Twig_Node_Expression_BlockReference($args->getNode(0), count($args) > 1 ? $args->getNode(1) : null, $line); - case 'attribute': - $args = $this->parseArguments(); - if (count($args) < 2) { - throw new Twig_Error_Syntax('The "attribute" function takes at least two arguments (the variable and the attributes).', $line, $this->parser->getStream()->getSourceContext()); - } - - return new Twig_Node_Expression_GetAttr($args->getNode(0), $args->getNode(1), count($args) > 2 ? $args->getNode(2) : null, Twig_Template::ANY_CALL, $line); - default: - if (null !== $alias = $this->parser->getImportedSymbol('function', $name)) { - $arguments = new Twig_Node_Expression_Array(array(), $line); - foreach ($this->parseArguments() as $n) { - $arguments->addElement($n); - } - - $node = new Twig_Node_Expression_MethodCall($alias['node'], $alias['name'], $arguments, $line); - $node->setAttribute('safe', true); - - return $node; - } - - $args = $this->parseArguments(true); - $class = $this->getFunctionNodeClass($name, $line); - - return new $class($name, $args, $line); - } - } - - public function parseSubscriptExpression($node) - { - $stream = $this->parser->getStream(); - $token = $stream->next(); - $lineno = $token->getLine(); - $arguments = new Twig_Node_Expression_Array(array(), $lineno); - $type = Twig_Template::ANY_CALL; - if ('.' == $token->getValue()) { - $token = $stream->next(); - if ( - Twig_Token::NAME_TYPE == $token->getType() - || - Twig_Token::NUMBER_TYPE == $token->getType() - || - (Twig_Token::OPERATOR_TYPE == $token->getType() && preg_match(Twig_Lexer::REGEX_NAME, $token->getValue())) - ) { - $arg = new Twig_Node_Expression_Constant($token->getValue(), $lineno); - - if ($stream->test(Twig_Token::PUNCTUATION_TYPE, '(')) { - $type = Twig_Template::METHOD_CALL; - foreach ($this->parseArguments() as $n) { - $arguments->addElement($n); - } - } - } else { - throw new Twig_Error_Syntax('Expected name or number.', $lineno, $stream->getSourceContext()); - } - - if ($node instanceof Twig_Node_Expression_Name && null !== $this->parser->getImportedSymbol('template', $node->getAttribute('name'))) { - if (!$arg instanceof Twig_Node_Expression_Constant) { - throw new Twig_Error_Syntax(sprintf('Dynamic macro names are not supported (called on "%s").', $node->getAttribute('name')), $token->getLine(), $stream->getSourceContext()); - } - - $name = $arg->getAttribute('value'); - - if ($this->parser->isReservedMacroName($name)) { - throw new Twig_Error_Syntax(sprintf('"%s" cannot be called as macro as it is a reserved keyword.', $name), $token->getLine(), $stream->getSourceContext()); - } - - $node = new Twig_Node_Expression_MethodCall($node, 'get'.$name, $arguments, $lineno); - $node->setAttribute('safe', true); - - return $node; - } - } else { - $type = Twig_Template::ARRAY_CALL; - - // slice? - $slice = false; - if ($stream->test(Twig_Token::PUNCTUATION_TYPE, ':')) { - $slice = true; - $arg = new Twig_Node_Expression_Constant(0, $token->getLine()); - } else { - $arg = $this->parseExpression(); - } - - if ($stream->nextIf(Twig_Token::PUNCTUATION_TYPE, ':')) { - $slice = true; - } - - if ($slice) { - if ($stream->test(Twig_Token::PUNCTUATION_TYPE, ']')) { - $length = new Twig_Node_Expression_Constant(null, $token->getLine()); - } else { - $length = $this->parseExpression(); - } - - $class = $this->getFilterNodeClass('slice', $token->getLine()); - $arguments = new Twig_Node(array($arg, $length)); - $filter = new $class($node, new Twig_Node_Expression_Constant('slice', $token->getLine()), $arguments, $token->getLine()); - - $stream->expect(Twig_Token::PUNCTUATION_TYPE, ']'); - - return $filter; - } - - $stream->expect(Twig_Token::PUNCTUATION_TYPE, ']'); - } - - return new Twig_Node_Expression_GetAttr($node, $arg, $arguments, $type, $lineno); - } - - public function parseFilterExpression($node) - { - $this->parser->getStream()->next(); - - return $this->parseFilterExpressionRaw($node); - } - - public function parseFilterExpressionRaw($node, $tag = null) - { - while (true) { - $token = $this->parser->getStream()->expect(Twig_Token::NAME_TYPE); - - $name = new Twig_Node_Expression_Constant($token->getValue(), $token->getLine()); - if (!$this->parser->getStream()->test(Twig_Token::PUNCTUATION_TYPE, '(')) { - $arguments = new Twig_Node(); - } else { - $arguments = $this->parseArguments(true); - } - - $class = $this->getFilterNodeClass($name->getAttribute('value'), $token->getLine()); - - $node = new $class($node, $name, $arguments, $token->getLine(), $tag); - - if (!$this->parser->getStream()->test(Twig_Token::PUNCTUATION_TYPE, '|')) { - break; - } - - $this->parser->getStream()->next(); - } - - return $node; - } - - /** - * Parses arguments. - * - * @param bool $namedArguments Whether to allow named arguments or not - * @param bool $definition Whether we are parsing arguments for a function definition - * - * @return Twig_Node - * - * @throws Twig_Error_Syntax - */ - public function parseArguments($namedArguments = false, $definition = false) - { - $args = array(); - $stream = $this->parser->getStream(); - - $stream->expect(Twig_Token::PUNCTUATION_TYPE, '(', 'A list of arguments must begin with an opening parenthesis'); - while (!$stream->test(Twig_Token::PUNCTUATION_TYPE, ')')) { - if (!empty($args)) { - $stream->expect(Twig_Token::PUNCTUATION_TYPE, ',', 'Arguments must be separated by a comma'); - } - - if ($definition) { - $token = $stream->expect(Twig_Token::NAME_TYPE, null, 'An argument must be a name'); - $value = new Twig_Node_Expression_Name($token->getValue(), $this->parser->getCurrentToken()->getLine()); - } else { - $value = $this->parseExpression(); - } - - $name = null; - if ($namedArguments && $token = $stream->nextIf(Twig_Token::OPERATOR_TYPE, '=')) { - if (!$value instanceof Twig_Node_Expression_Name) { - throw new Twig_Error_Syntax(sprintf('A parameter name must be a string, "%s" given.', get_class($value)), $token->getLine(), $stream->getSourceContext()); - } - $name = $value->getAttribute('name'); - - if ($definition) { - $value = $this->parsePrimaryExpression(); - - if (!$this->checkConstantExpression($value)) { - throw new Twig_Error_Syntax(sprintf('A default value for an argument must be a constant (a boolean, a string, a number, or an array).'), $token->getLine(), $stream->getSourceContext()); - } - } else { - $value = $this->parseExpression(); - } - } - - if ($definition) { - if (null === $name) { - $name = $value->getAttribute('name'); - $value = new Twig_Node_Expression_Constant(null, $this->parser->getCurrentToken()->getLine()); - } - $args[$name] = $value; - } else { - if (null === $name) { - $args[] = $value; - } else { - $args[$name] = $value; - } - } - } - $stream->expect(Twig_Token::PUNCTUATION_TYPE, ')', 'A list of arguments must be closed by a parenthesis'); - - return new Twig_Node($args); - } - - public function parseAssignmentExpression() - { - $stream = $this->parser->getStream(); - $targets = array(); - while (true) { - $token = $stream->expect(Twig_Token::NAME_TYPE, null, 'Only variables can be assigned to'); - $value = $token->getValue(); - if (in_array(strtolower($value), array('true', 'false', 'none', 'null'))) { - throw new Twig_Error_Syntax(sprintf('You cannot assign a value to "%s".', $value), $token->getLine(), $stream->getSourceContext()); - } - $targets[] = new Twig_Node_Expression_AssignName($value, $token->getLine()); - - if (!$stream->nextIf(Twig_Token::PUNCTUATION_TYPE, ',')) { - break; - } - } - - return new Twig_Node($targets); - } - - public function parseMultitargetExpression() - { - $targets = array(); - while (true) { - $targets[] = $this->parseExpression(); - if (!$this->parser->getStream()->nextIf(Twig_Token::PUNCTUATION_TYPE, ',')) { - break; - } - } - - return new Twig_Node($targets); - } - - private function parseNotTestExpression(Twig_NodeInterface $node) - { - return new Twig_Node_Expression_Unary_Not($this->parseTestExpression($node), $this->parser->getCurrentToken()->getLine()); - } - - private function parseTestExpression(Twig_NodeInterface $node) - { - $stream = $this->parser->getStream(); - list($name, $test) = $this->getTest($node->getTemplateLine()); - - $class = $this->getTestNodeClass($test); - $arguments = null; - if ($stream->test(Twig_Token::PUNCTUATION_TYPE, '(')) { - $arguments = $this->parser->getExpressionParser()->parseArguments(true); - } - - return new $class($node, $name, $arguments, $this->parser->getCurrentToken()->getLine()); - } - - private function getTest($line) - { - $stream = $this->parser->getStream(); - $name = $stream->expect(Twig_Token::NAME_TYPE)->getValue(); - - if ($test = $this->env->getTest($name)) { - return array($name, $test); - } - - if ($stream->test(Twig_Token::NAME_TYPE)) { - // try 2-words tests - $name = $name.' '.$this->parser->getCurrentToken()->getValue(); - - if ($test = $this->env->getTest($name)) { - $stream->next(); - - return array($name, $test); - } - } - - $e = new Twig_Error_Syntax(sprintf('Unknown "%s" test.', $name), $line, $stream->getSourceContext()); - $e->addSuggestions($name, array_keys($this->env->getTests())); - - throw $e; - } - - private function getTestNodeClass($test) - { - if ($test instanceof Twig_SimpleTest && $test->isDeprecated()) { - $stream = $this->parser->getStream(); - $message = sprintf('Twig Test "%s" is deprecated', $test->getName()); - if (!is_bool($test->getDeprecatedVersion())) { - $message .= sprintf(' since version %s', $test->getDeprecatedVersion()); - } - if ($test->getAlternative()) { - $message .= sprintf('. Use "%s" instead', $test->getAlternative()); - } - $src = $stream->getSourceContext(); - $message .= sprintf(' in %s at line %d.', $src->getPath() ? $src->getPath() : $src->getName(), $stream->getCurrent()->getLine()); - - @trigger_error($message, E_USER_DEPRECATED); - } - - if ($test instanceof Twig_SimpleTest) { - return $test->getNodeClass(); - } - - return $test instanceof Twig_Test_Node ? $test->getClass() : 'Twig_Node_Expression_Test'; - } - - protected function getFunctionNodeClass($name, $line) - { - if (false === $function = $this->env->getFunction($name)) { - $e = new Twig_Error_Syntax(sprintf('Unknown "%s" function.', $name), $line, $this->parser->getStream()->getSourceContext()); - $e->addSuggestions($name, array_keys($this->env->getFunctions())); - - throw $e; - } - - if ($function instanceof Twig_SimpleFunction && $function->isDeprecated()) { - $message = sprintf('Twig Function "%s" is deprecated', $function->getName()); - if (!is_bool($function->getDeprecatedVersion())) { - $message .= sprintf(' since version %s', $function->getDeprecatedVersion()); - } - if ($function->getAlternative()) { - $message .= sprintf('. Use "%s" instead', $function->getAlternative()); - } - $src = $this->parser->getStream()->getSourceContext(); - $message .= sprintf(' in %s at line %d.', $src->getPath() ? $src->getPath() : $src->getName(), $line); - - @trigger_error($message, E_USER_DEPRECATED); - } - - if ($function instanceof Twig_SimpleFunction) { - return $function->getNodeClass(); - } - - return $function instanceof Twig_Function_Node ? $function->getClass() : 'Twig_Node_Expression_Function'; - } - - protected function getFilterNodeClass($name, $line) - { - if (false === $filter = $this->env->getFilter($name)) { - $e = new Twig_Error_Syntax(sprintf('Unknown "%s" filter.', $name), $line, $this->parser->getStream()->getSourceContext()); - $e->addSuggestions($name, array_keys($this->env->getFilters())); - - throw $e; - } - - if ($filter instanceof Twig_SimpleFilter && $filter->isDeprecated()) { - $message = sprintf('Twig Filter "%s" is deprecated', $filter->getName()); - if (!is_bool($filter->getDeprecatedVersion())) { - $message .= sprintf(' since version %s', $filter->getDeprecatedVersion()); - } - if ($filter->getAlternative()) { - $message .= sprintf('. Use "%s" instead', $filter->getAlternative()); - } - $src = $this->parser->getStream()->getSourceContext(); - $message .= sprintf(' in %s at line %d.', $src->getPath() ? $src->getPath() : $src->getName(), $line); - - @trigger_error($message, E_USER_DEPRECATED); - } - - if ($filter instanceof Twig_SimpleFilter) { - return $filter->getNodeClass(); - } - - return $filter instanceof Twig_Filter_Node ? $filter->getClass() : 'Twig_Node_Expression_Filter'; - } - - // checks that the node only contains "constant" elements - protected function checkConstantExpression(Twig_NodeInterface $node) - { - if (!($node instanceof Twig_Node_Expression_Constant || $node instanceof Twig_Node_Expression_Array - || $node instanceof Twig_Node_Expression_Unary_Neg || $node instanceof Twig_Node_Expression_Unary_Pos - )) { - return false; - } - - foreach ($node as $n) { - if (!$this->checkConstantExpression($n)) { - return false; - } - } - - return true; - } -} - -class_alias('Twig_ExpressionParser', 'Twig\ExpressionParser', false); -- cgit v1.3