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Diffstat (limited to 'inc/lib/Twig/Node/Expression/Call.php')
| -rw-r--r-- | inc/lib/Twig/Node/Expression/Call.php | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/inc/lib/Twig/Node/Expression/Call.php b/inc/lib/Twig/Node/Expression/Call.php new file mode 100644 index 00000000..87b62deb --- /dev/null +++ b/inc/lib/Twig/Node/Expression/Call.php @@ -0,0 +1,178 @@ +<?php + +/* + * This file is part of Twig. + * + * (c) 2012 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 +{ + protected function compileCallable(Twig_Compiler $compiler) + { + $callable = $this->getAttribute('callable'); + + $closingParenthesis = false; + if ($callable) { + if (is_string($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; + } + } else { + $compiler->raw($this->getAttribute('thing')->compile()); + } + + $this->compileArguments($compiler); + + if ($closingParenthesis) { + $compiler->raw(')'); + } + } + + protected function compileArguments(Twig_Compiler $compiler) + { + $compiler->raw('('); + + $first = true; + + if ($this->hasAttribute('needs_environment') && $this->getAttribute('needs_environment')) { + $compiler->raw('$this->env'); + $first = false; + } + + if ($this->hasAttribute('needs_context') && $this->getAttribute('needs_context')) { + if (!$first) { + $compiler->raw(', '); + } + $compiler->raw('$context'); + $first = false; + } + + if ($this->hasAttribute('arguments')) { + foreach ($this->getAttribute('arguments') as $argument) { + if (!$first) { + $compiler->raw(', '); + } + $compiler->string($argument); + $first = false; + } + } + + if ($this->hasNode('node')) { + if (!$first) { + $compiler->raw(', '); + } + $compiler->subcompile($this->getNode('node')); + $first = false; + } + + if ($this->hasNode('arguments') && null !== $this->getNode('arguments')) { + $callable = $this->hasAttribute('callable') ? $this->getAttribute('callable') : null; + + $arguments = $this->getArguments($callable, $this->getNode('arguments')); + + foreach ($arguments as $node) { + if (!$first) { + $compiler->raw(', '); + } + $compiler->subcompile($node); + $first = false; + } + } + + $compiler->raw(')'); + } + + protected function getArguments($callable, $arguments) + { + $parameters = array(); + $named = false; + foreach ($arguments as $name => $node) { + if (!is_int($name)) { + $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'))); + } + + $parameters[$name] = $node; + } + + if (!$named) { + 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); + } + } + + $arguments = array(); + $pos = 0; + foreach ($definition as $param) { + $name = $this->normalizeName($param->name); + + if (array_key_exists($name, $parameters)) { + if (array_key_exists($pos, $parameters)) { + throw new Twig_Error_Syntax(sprintf('Arguments "%s" is defined twice for %s "%s".', $name, $this->getAttribute('type'), $this->getAttribute('name'))); + } + + $arguments[] = $parameters[$name]; + unset($parameters[$name]); + } elseif (array_key_exists($pos, $parameters)) { + $arguments[] = $parameters[$pos]; + unset($parameters[$pos]); + ++$pos; + } elseif ($param->isDefaultValueAvailable()) { + $arguments[] = new Twig_Node_Expression_Constant($param->getDefaultValue(), -1); + } elseif ($param->isOptional()) { + break; + } else { + throw new Twig_Error_Syntax(sprintf('Value for argument "%s" is required for %s "%s".', $name, $this->getAttribute('type'), $this->getAttribute('name'))); + } + } + + foreach (array_keys($parameters) as $name) { + throw new Twig_Error_Syntax(sprintf('Unknown argument "%s" for %s "%s".', $name, $this->getAttribute('type'), $this->getAttribute('name'))); + } + + return $arguments; + } + + protected function normalizeName($name) + { + return strtolower(preg_replace(array('/([A-Z]+)([A-Z][a-z])/', '/([a-z\d])([A-Z])/'), array('\\1_\\2', '\\1_\\2'), $name)); + } +} |