diff options
Diffstat (limited to 'inc/lib/Twig/Node/Expression/Call.php')
| -rw-r--r-- | inc/lib/Twig/Node/Expression/Call.php | 209 |
1 files changed, 161 insertions, 48 deletions
diff --git a/inc/lib/Twig/Node/Expression/Call.php b/inc/lib/Twig/Node/Expression/Call.php index dba9b0e6..d962b6a5 100644 --- a/inc/lib/Twig/Node/Expression/Call.php +++ b/inc/lib/Twig/Node/Expression/Call.php @@ -3,27 +3,36 @@ /* * This file is part of Twig. * - * (c) 2012 Fabien Potencier + * (c) Fabien Potencier * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ abstract class Twig_Node_Expression_Call extends Twig_Node_Expression { + private $reflector; + protected function compileCallable(Twig_Compiler $compiler) { - $callable = $this->getAttribute('callable'); - $closingParenthesis = false; - if ($callable) { - if (is_string($callable)) { + if ($this->hasAttribute('callable') && $callable = $this->getAttribute('callable')) { + if (is_string($callable) && false === strpos($callable, '::')) { $compiler->raw($callable); - } elseif (is_array($callable) && $callable[0] instanceof Twig_ExtensionInterface) { - $compiler->raw(sprintf('$this->env->getExtension(\'%s\')->%s', $callable[0]->getName(), $callable[1])); } else { - $type = ucfirst($this->getAttribute('type')); - $compiler->raw(sprintf('call_user_func_array($this->env->get%s(\'%s\')->getCallable(), array', $type, $this->getAttribute('name'))); - $closingParenthesis = true; + list($r, $callable) = $this->reflectCallable($callable); + if ($r instanceof ReflectionMethod && is_string($callable[0])) { + if ($r->isStatic()) { + $compiler->raw(sprintf('%s::%s', $callable[0], $callable[1])); + } else { + $compiler->raw(sprintf('$this->env->getRuntime(\'%s\')->%s', $callable[0], $callable[1])); + } + } elseif ($r instanceof ReflectionMethod && $callable[0] instanceof Twig_ExtensionInterface) { + $compiler->raw(sprintf('$this->env->getExtension(\'%s\')->%s', get_class($callable[0]), $callable[1])); + } else { + $type = ucfirst($this->getAttribute('type')); + $compiler->raw(sprintf('call_user_func_array($this->env->get%s(\'%s\')->getCallable(), array', $type, $this->getAttribute('name'))); + $closingParenthesis = true; + } } } else { $compiler->raw($this->getAttribute('thing')->compile()); @@ -73,7 +82,7 @@ abstract class Twig_Node_Expression_Call extends Twig_Node_Expression $first = false; } - if ($this->hasNode('arguments') && null !== $this->getNode('arguments')) { + if ($this->hasNode('arguments')) { $callable = $this->hasAttribute('callable') ? $this->getAttribute('callable') : null; $arguments = $this->getArguments($callable, $this->getNode('arguments')); @@ -92,6 +101,9 @@ abstract class Twig_Node_Expression_Call extends Twig_Node_Expression protected function getArguments($callable, $arguments) { + $callType = $this->getAttribute('type'); + $callName = $this->getAttribute('name'); + $parameters = array(); $named = false; foreach ($arguments as $name => $node) { @@ -99,73 +111,101 @@ abstract class Twig_Node_Expression_Call extends Twig_Node_Expression $named = true; $name = $this->normalizeName($name); } elseif ($named) { - throw new Twig_Error_Syntax(sprintf('Positional arguments cannot be used after named arguments for %s "%s".', $this->getAttribute('type'), $this->getAttribute('name'))); + throw new Twig_Error_Syntax(sprintf('Positional arguments cannot be used after named arguments for %s "%s".', $callType, $callName)); } $parameters[$name] = $node; } - if (!$named) { + $isVariadic = $this->hasAttribute('is_variadic') && $this->getAttribute('is_variadic'); + if (!$named && !$isVariadic) { return $parameters; } if (!$callable) { - throw new LogicException(sprintf('Named arguments are not supported for %s "%s".', $this->getAttribute('type'), $this->getAttribute('name'))); - } - - // manage named arguments - if (is_array($callable)) { - $r = new ReflectionMethod($callable[0], $callable[1]); - } elseif (is_object($callable) && !$callable instanceof Closure) { - $r = new ReflectionObject($callable); - $r = $r->getMethod('__invoke'); - } else { - $r = new ReflectionFunction($callable); - } - - $definition = $r->getParameters(); - if ($this->hasNode('node')) { - array_shift($definition); - } - if ($this->hasAttribute('needs_environment') && $this->getAttribute('needs_environment')) { - array_shift($definition); - } - if ($this->hasAttribute('needs_context') && $this->getAttribute('needs_context')) { - array_shift($definition); - } - if ($this->hasAttribute('arguments') && null !== $this->getAttribute('arguments')) { - foreach ($this->getAttribute('arguments') as $argument) { - array_shift($definition); + if ($named) { + $message = sprintf('Named arguments are not supported for %s "%s".', $callType, $callName); + } else { + $message = sprintf('Arbitrary positional arguments are not supported for %s "%s".', $callType, $callName); } + + throw new LogicException($message); } + $callableParameters = $this->getCallableParameters($callable, $isVariadic); $arguments = array(); + $names = array(); + $missingArguments = array(); + $optionalArguments = array(); $pos = 0; - foreach ($definition as $param) { - $name = $this->normalizeName($param->name); + foreach ($callableParameters as $callableParameter) { + $names[] = $name = $this->normalizeName($callableParameter->name); if (array_key_exists($name, $parameters)) { if (array_key_exists($pos, $parameters)) { - throw new Twig_Error_Syntax(sprintf('Argument "%s" is defined twice for %s "%s".', $name, $this->getAttribute('type'), $this->getAttribute('name'))); + throw new Twig_Error_Syntax(sprintf('Argument "%s" is defined twice for %s "%s".', $name, $callType, $callName)); + } + + if (count($missingArguments)) { + throw new Twig_Error_Syntax(sprintf( + 'Argument "%s" could not be assigned for %s "%s(%s)" because it is mapped to an internal PHP function which cannot determine default value for optional argument%s "%s".', + $name, $callType, $callName, implode(', ', $names), count($missingArguments) > 1 ? 's' : '', implode('", "', $missingArguments)) + ); } + $arguments = array_merge($arguments, $optionalArguments); $arguments[] = $parameters[$name]; unset($parameters[$name]); + $optionalArguments = array(); } elseif (array_key_exists($pos, $parameters)) { + $arguments = array_merge($arguments, $optionalArguments); $arguments[] = $parameters[$pos]; unset($parameters[$pos]); + $optionalArguments = array(); ++$pos; - } elseif ($param->isDefaultValueAvailable()) { - $arguments[] = new Twig_Node_Expression_Constant($param->getDefaultValue(), -1); - } elseif ($param->isOptional()) { - break; + } elseif ($callableParameter->isDefaultValueAvailable()) { + $optionalArguments[] = new Twig_Node_Expression_Constant($callableParameter->getDefaultValue(), -1); + } elseif ($callableParameter->isOptional()) { + if (empty($parameters)) { + break; + } else { + $missingArguments[] = $name; + } } else { - throw new Twig_Error_Syntax(sprintf('Value for argument "%s" is required for %s "%s".', $name, $this->getAttribute('type'), $this->getAttribute('name'))); + throw new Twig_Error_Syntax(sprintf('Value for argument "%s" is required for %s "%s".', $name, $callType, $callName)); + } + } + + if ($isVariadic) { + $arbitraryArguments = new Twig_Node_Expression_Array(array(), -1); + foreach ($parameters as $key => $value) { + if (is_int($key)) { + $arbitraryArguments->addElement($value); + } else { + $arbitraryArguments->addElement($value, new Twig_Node_Expression_Constant($key, -1)); + } + unset($parameters[$key]); + } + + if ($arbitraryArguments->count()) { + $arguments = array_merge($arguments, $optionalArguments); + $arguments[] = $arbitraryArguments; } } if (!empty($parameters)) { - throw new Twig_Error_Syntax(sprintf('Unknown argument%s "%s" for %s "%s".', count($parameters) > 1 ? 's' : '' , implode('", "', array_keys($parameters)), $this->getAttribute('type'), $this->getAttribute('name'))); + $unknownParameter = null; + foreach ($parameters as $parameter) { + if ($parameter instanceof Twig_Node) { + $unknownParameter = $parameter; + break; + } + } + + throw new Twig_Error_Syntax(sprintf( + 'Unknown argument%s "%s" for %s "%s(%s)".', + count($parameters) > 1 ? 's' : '', implode('", "', array_keys($parameters)), $callType, $callName, implode(', ', $names) + ), $unknownParameter ? $unknownParameter->getTemplateLine() : -1); } return $arguments; @@ -175,4 +215,77 @@ abstract class Twig_Node_Expression_Call extends Twig_Node_Expression { return strtolower(preg_replace(array('/([A-Z]+)([A-Z][a-z])/', '/([a-z\d])([A-Z])/'), array('\\1_\\2', '\\1_\\2'), $name)); } + + private function getCallableParameters($callable, $isVariadic) + { + list($r) = $this->reflectCallable($callable); + if (null === $r) { + return array(); + } + + $parameters = $r->getParameters(); + if ($this->hasNode('node')) { + array_shift($parameters); + } + if ($this->hasAttribute('needs_environment') && $this->getAttribute('needs_environment')) { + array_shift($parameters); + } + if ($this->hasAttribute('needs_context') && $this->getAttribute('needs_context')) { + array_shift($parameters); + } + if ($this->hasAttribute('arguments') && null !== $this->getAttribute('arguments')) { + foreach ($this->getAttribute('arguments') as $argument) { + array_shift($parameters); + } + } + if ($isVariadic) { + $argument = end($parameters); + if ($argument && $argument->isArray() && $argument->isDefaultValueAvailable() && array() === $argument->getDefaultValue()) { + array_pop($parameters); + } else { + $callableName = $r->name; + if ($r instanceof ReflectionMethod) { + $callableName = $r->getDeclaringClass()->name.'::'.$callableName; + } + + throw new LogicException(sprintf('The last parameter of "%s" for %s "%s" must be an array with default value, eg. "array $arg = array()".', $callableName, $this->getAttribute('type'), $this->getAttribute('name'))); + } + } + + return $parameters; + } + + private function reflectCallable($callable) + { + if (null !== $this->reflector) { + return $this->reflector; + } + + if (is_array($callable)) { + if (!method_exists($callable[0], $callable[1])) { + // __call() + return array(null, array()); + } + $r = new ReflectionMethod($callable[0], $callable[1]); + } elseif (is_object($callable) && !$callable instanceof Closure) { + $r = new ReflectionObject($callable); + $r = $r->getMethod('__invoke'); + $callable = array($callable, '__invoke'); + } elseif (is_string($callable) && false !== $pos = strpos($callable, '::')) { + $class = substr($callable, 0, $pos); + $method = substr($callable, $pos + 2); + if (!method_exists($class, $method)) { + // __staticCall() + return array(null, array()); + } + $r = new ReflectionMethod($callable); + $callable = array($class, $method); + } else { + $r = new ReflectionFunction($callable); + } + + return $this->reflector = array($r, $callable); + } } + +class_alias('Twig_Node_Expression_Call', 'Twig\Node\Expression\CallExpression', false); |