diff options
Diffstat (limited to 'inc/lib/Twig/ExpressionParser.php')
| -rw-r--r-- | inc/lib/Twig/ExpressionParser.php | 341 |
1 files changed, 237 insertions, 104 deletions
diff --git a/inc/lib/Twig/ExpressionParser.php b/inc/lib/Twig/ExpressionParser.php index 9deab09c..fe4a9b4a 100644 --- a/inc/lib/Twig/ExpressionParser.php +++ b/inc/lib/Twig/ExpressionParser.php @@ -3,8 +3,8 @@ /* * This file is part of Twig. * - * (c) 2009 Fabien Potencier - * (c) 2009 Armin Ronacher + * (c) Fabien Potencier + * (c) Armin Ronacher * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. @@ -15,10 +15,12 @@ * * This parser implements a "Precedence climbing" algorithm. * - * @see http://www.engr.mun.ca/~theo/Misc/exp_parsing.htm - * @see http://en.wikipedia.org/wiki/Operator-precedence_parser + * @see https://www.engr.mun.ca/~theo/Misc/exp_parsing.htm + * @see https://en.wikipedia.org/wiki/Operator-precedence_parser * * @author Fabien Potencier <fabien@symfony.com> + * + * @internal */ class Twig_ExpressionParser { @@ -29,11 +31,23 @@ class Twig_ExpressionParser protected $unaryOperators; protected $binaryOperators; - public function __construct(Twig_Parser $parser, array $unaryOperators, array $binaryOperators) + private $env; + + public function __construct(Twig_Parser $parser, $env = null) { $this->parser = $parser; - $this->unaryOperators = $unaryOperators; - $this->binaryOperators = $binaryOperators; + + if ($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) @@ -44,7 +58,11 @@ class Twig_ExpressionParser $op = $this->binaryOperators[$token->getValue()]; $this->parser->getStream()->next(); - if (isset($op['callable'])) { + 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 : $op['precedence']); @@ -86,18 +104,15 @@ class Twig_ExpressionParser protected function parseConditionalExpression($expr) { - while ($this->parser->getStream()->test(Twig_Token::PUNCTUATION_TYPE, '?')) { - $this->parser->getStream()->next(); - if (!$this->parser->getStream()->test(Twig_Token::PUNCTUATION_TYPE, ':')) { + 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()->test(Twig_Token::PUNCTUATION_TYPE, ':')) { - $this->parser->getStream()->next(); + if ($this->parser->getStream()->nextIf(Twig_Token::PUNCTUATION_TYPE, ':')) { $expr3 = $this->parseExpression(); } else { $expr3 = new Twig_Node_Expression_Constant('', $this->parser->getCurrentToken()->getLine()); } } else { - $this->parser->getStream()->next(); $expr2 = $expr; $expr3 = $this->parseExpression(); } @@ -161,13 +176,39 @@ class Twig_ExpressionParser $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->getLine()), $token->getValue()), $token->getLine(), $this->parser->getFilename()); + throw new Twig_Error_Syntax(sprintf('Unexpected token "%s" of value "%s".', Twig_Token::typeToEnglish($token->getType()), $token->getValue()), $token->getLine(), $this->parser->getStream()->getSourceContext()); } } @@ -182,12 +223,10 @@ class Twig_ExpressionParser // a string cannot be followed by another string in a single expression $nextCanBeString = true; while (true) { - if ($stream->test(Twig_Token::STRING_TYPE) && $nextCanBeString) { - $token = $stream->next(); + if ($nextCanBeString && $token = $stream->nextIf(Twig_Token::STRING_TYPE)) { $nodes[] = new Twig_Node_Expression_Constant($token->getValue(), $token->getLine()); $nextCanBeString = false; - } elseif ($stream->test(Twig_Token::INTERPOLATION_START_TYPE)) { - $stream->next(); + } elseif ($stream->nextIf(Twig_Token::INTERPOLATION_START_TYPE)) { $nodes[] = $this->parseExpression(); $stream->expect(Twig_Token::INTERPOLATION_END_TYPE); $nextCanBeString = true; @@ -198,7 +237,7 @@ class Twig_ExpressionParser $expr = array_shift($nodes); foreach ($nodes as $node) { - $expr = new Twig_Node_Expression_Binary_Concat($expr, $node, $node->getLine()); + $expr = new Twig_Node_Expression_Binary_Concat($expr, $node, $node->getTemplateLine()); } return $expr; @@ -253,15 +292,14 @@ class Twig_ExpressionParser // * a string -- 'a' // * a name, which is equivalent to a string -- a // * an expression, which must be enclosed in parentheses -- (1 + 2) - if ($stream->test(Twig_Token::STRING_TYPE) || $stream->test(Twig_Token::NAME_TYPE) || $stream->test(Twig_Token::NUMBER_TYPE)) { - $token = $stream->next(); + if (($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->getLine()), $current->getValue()), $current->getLine(), $this->parser->getFilename()); + throw new Twig_Error_Syntax(sprintf('A hash key must be a quoted string, a number, a name, or an expression enclosed in parentheses (unexpected token "%s" of value "%s".', Twig_Token::typeToEnglish($current->getType()), $current->getValue()), $current->getLine(), $stream->getSourceContext()); } $stream->expect(Twig_Token::PUNCTUATION_TYPE, ':', 'A hash key must be followed by a colon (:)'); @@ -278,7 +316,7 @@ class Twig_ExpressionParser { while (true) { $token = $this->parser->getCurrentToken(); - if ($token->getType() == Twig_Token::PUNCTUATION_TYPE) { + if (Twig_Token::PUNCTUATION_TYPE == $token->getType()) { if ('.' == $token->getValue() || '[' == $token->getValue()) { $node = $this->parseSubscriptExpression($node); } elseif ('|' == $token->getValue()) { @@ -298,41 +336,46 @@ class Twig_ExpressionParser { switch ($name) { case 'parent': - $args = $this->parseArguments(); + $this->parseArguments(); if (!count($this->parser->getBlockStack())) { - throw new Twig_Error_Syntax('Calling "parent" outside a block is forbidden', $line, $this->parser->getFilename()); + 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->getFilename()); + 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(), $line); case 'block': - return new Twig_Node_Expression_BlockReference($this->parseArguments()->getNode(0), false, $line); + $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->getFilename()); + 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) : new Twig_Node_Expression_Array(array(), $line), Twig_Template::ANY_CALL, $line); + return new Twig_Node_Expression_GetAttr($args->getNode(0), $args->getNode(1), count($args) > 2 ? $args->getNode(2) : null, Twig_Template::ANY_CALL, $line); default: - $args = $this->parseArguments(true); - if (null !== $alias = $this->parser->getImportedSymbol('macro', $name)) { - return new Twig_Node_Expression_MacroCall($alias['node'], $alias['name'], $this->createArrayFromArguments($args), $line); - } - - try { - $class = $this->getFunctionNodeClass($name, $line); - } catch (Twig_Error_Syntax $e) { - if (!$this->parser->hasMacro($name)) { - throw $e; + if (null !== $alias = $this->parser->getImportedSymbol('function', $name)) { + $arguments = new Twig_Node_Expression_Array(array(), $line); + foreach ($this->parseArguments() as $n) { + $arguments->addElement($n); } - return new Twig_Node_Expression_MacroCall(new Twig_Node_Expression_Name('_self', $line), $name, $this->createArrayFromArguments($args), $line); + $node = new Twig_Node_Expression_MethodCall($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); } } @@ -344,33 +387,42 @@ class Twig_ExpressionParser $lineno = $token->getLine(); $arguments = new Twig_Node_Expression_Array(array(), $lineno); $type = Twig_Template::ANY_CALL; - if ($token->getValue() == '.') { + if ('.' == $token->getValue()) { $token = $stream->next(); if ( - $token->getType() == Twig_Token::NAME_TYPE + Twig_Token::NAME_TYPE == $token->getType() || - $token->getType() == Twig_Token::NUMBER_TYPE + Twig_Token::NUMBER_TYPE == $token->getType() || - ($token->getType() == Twig_Token::OPERATOR_TYPE && preg_match(Twig_Lexer::REGEX_NAME, $token->getValue())) + (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, $this->parser->getFilename()); + 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(), $this->parser->getFilename()); + throw new Twig_Error_Syntax(sprintf('Dynamic macro names are not supported (called on "%s").', $node->getAttribute('name')), $token->getLine(), $stream->getSourceContext()); } - $arguments = $this->createArrayFromArguments($this->parseArguments(true)); + $name = $arg->getAttribute('value'); - return new Twig_Node_Expression_MacroCall($node, $arg->getAttribute('value'), $arguments, $lineno); - } + if ($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); + $node->setAttribute('safe', true); - if ($stream->test(Twig_Token::PUNCTUATION_TYPE, '(')) { - $type = Twig_Template::METHOD_CALL; - $arguments = $this->createArrayFromArguments($this->parseArguments()); + return $node; } } else { $type = Twig_Template::ARRAY_CALL; @@ -384,9 +436,8 @@ class Twig_ExpressionParser $arg = $this->parseExpression(); } - if ($stream->test(Twig_Token::PUNCTUATION_TYPE, ':')) { + if ($stream->nextIf(Twig_Token::PUNCTUATION_TYPE, ':')) { $slice = true; - $stream->next(); } if ($slice) { @@ -447,10 +498,12 @@ class Twig_ExpressionParser /** * Parses arguments. * - * @param Boolean $namedArguments Whether to allow named arguments or not - * @param Boolean $definition Whether we are parsing arguments for a function definition + * @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) { @@ -471,10 +524,9 @@ class Twig_ExpressionParser } $name = null; - if ($namedArguments && $stream->test(Twig_Token::OPERATOR_TYPE, '=')) { - $token = $stream->next(); + if ($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(), $this->parser->getFilename()); + throw new Twig_Error_Syntax(sprintf('A parameter name must be a string, "%s" given.', get_class($value)), $token->getLine(), $stream->getSourceContext()); } $name = $value->getAttribute('name'); @@ -482,26 +534,25 @@ class Twig_ExpressionParser $value = $this->parsePrimaryExpression(); if (!$this->checkConstantExpression($value)) { - throw new Twig_Error_Syntax('A default value for an argument must be a constant (a boolean, a string, a number, or an array).', $token->getLine(), $this->parser->getFilename()); + 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 && null === $name) { - $name = $value->getAttribute('name'); - $value = new Twig_Node_Expression_Constant(null, $this->parser->getCurrentToken()->getLine()); - } - - if (null === $name) { - $args[] = $value; - } else { - if ($definition && isset($args[$name])) { - throw new Twig_Error_Syntax(sprintf('Arguments cannot contain the same argument name more than once ("%s" is defined twice).', $name), $token->getLine(), $this->parser->getFilename()); + if ($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'); @@ -511,18 +562,19 @@ class Twig_ExpressionParser public function parseAssignmentExpression() { + $stream = $this->parser->getStream(); $targets = array(); while (true) { - $token = $this->parser->getStream()->expect(Twig_Token::NAME_TYPE, null, 'Only variables can be assigned to'); - if (in_array($token->getValue(), array('true', 'false', 'none'))) { - throw new Twig_Error_Syntax(sprintf('You cannot assign a value to "%s"', $token->getValue()), $token->getLine(), $this->parser->getFilename()); + $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()); } - $targets[] = new Twig_Node_Expression_AssignName($token->getValue(), $token->getLine()); + $targets[] = new Twig_Node_Expression_AssignName($value, $token->getLine()); - if (!$this->parser->getStream()->test(Twig_Token::PUNCTUATION_TYPE, ',')) { + if (!$stream->nextIf(Twig_Token::PUNCTUATION_TYPE, ',')) { break; } - $this->parser->getStream()->next(); } return new Twig_Node($targets); @@ -533,26 +585,104 @@ class Twig_ExpressionParser $targets = array(); while (true) { $targets[] = $this->parseExpression(); - if (!$this->parser->getStream()->test(Twig_Token::PUNCTUATION_TYPE, ',')) { + if (!$this->parser->getStream()->nextIf(Twig_Token::PUNCTUATION_TYPE, ',')) { break; } - $this->parser->getStream()->next(); } return new Twig_Node($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) { - $env = $this->parser->getEnvironment(); + 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())); - if (false === $function = $env->getFunction($name)) { - $message = sprintf('The function "%s" does not exist', $name); - if ($alternatives = $env->computeAlternatives($name, array_keys($env->getFunctions()))) { - $message = sprintf('%s. Did you mean "%s"', $message, implode('", "', $alternatives)); + 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(), $line); - throw new Twig_Error_Syntax($message, $line, $this->parser->getFilename()); + @trigger_error($message, E_USER_DEPRECATED); } if ($function instanceof Twig_SimpleFunction) { @@ -564,15 +694,25 @@ class Twig_ExpressionParser protected function getFilterNodeClass($name, $line) { - $env = $this->parser->getEnvironment(); + 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())); - if (false === $filter = $env->getFilter($name)) { - $message = sprintf('The filter "%s" does not exist', $name); - if ($alternatives = $env->computeAlternatives($name, array_keys($env->getFilters()))) { - $message = sprintf('%s. Did you mean "%s"', $message, implode('", "', $alternatives)); + 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(), $line); - throw new Twig_Error_Syntax($message, $line, $this->parser->getFilename()); + @trigger_error($message, E_USER_DEPRECATED); } if ($filter instanceof Twig_SimpleFilter) { @@ -585,7 +725,9 @@ class Twig_ExpressionParser // checks that the node only contains "constant" elements protected function checkConstantExpression(Twig_NodeInterface $node) { - if (!($node instanceof Twig_Node_Expression_Constant || $node instanceof Twig_Node_Expression_Array)) { + if (!($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; } @@ -597,15 +739,6 @@ class Twig_ExpressionParser return true; } - - private function createArrayFromArguments(Twig_Node $arguments, $line = null) - { - $line = null === $line ? $arguments->getLine() : $line; - $array = new Twig_Node_Expression_Array(array(), $line); - foreach ($arguments as $key => $value) { - $array->addElement($value, new Twig_Node_Expression_Constant($key, $value->getLine())); - } - - return $array; - } } + +class_alias('Twig_ExpressionParser', 'Twig\ExpressionParser', false); |