445 lines
14 KiB
PHP
445 lines
14 KiB
PHP
<?php
|
|
|
|
/*
|
|
* This file is part of Twig.
|
|
*
|
|
* (c) 2009 Fabien Potencier
|
|
* (c) 2009 Armin Ronacher
|
|
*
|
|
* For the full copyright and license information, please view the LICENSE
|
|
* file that was distributed with this source code.
|
|
*/
|
|
|
|
/**
|
|
* Represents a module node.
|
|
*
|
|
* Consider this class as being final. If you need to customize the behavior of
|
|
* the generated class, consider adding nodes to the following nodes: display_start,
|
|
* display_end, constructor_start, constructor_end, and class_end.
|
|
*
|
|
* @author Fabien Potencier <fabien@symfony.com>
|
|
*/
|
|
class Twig_Node_Module extends Twig_Node
|
|
{
|
|
private $source;
|
|
|
|
public function __construct(Twig_Node $body, Twig_Node_Expression $parent = null, Twig_Node $blocks, Twig_Node $macros, Twig_Node $traits, $embeddedTemplates, Twig_Source $source)
|
|
{
|
|
$this->source = $source;
|
|
|
|
$nodes = array(
|
|
'body' => $body,
|
|
'blocks' => $blocks,
|
|
'macros' => $macros,
|
|
'traits' => $traits,
|
|
'display_start' => new Twig_Node(),
|
|
'display_end' => new Twig_Node(),
|
|
'constructor_start' => new Twig_Node(),
|
|
'constructor_end' => new Twig_Node(),
|
|
'class_end' => new Twig_Node(),
|
|
);
|
|
if (null !== $parent) {
|
|
$nodes['parent'] = $parent;
|
|
}
|
|
|
|
// embedded templates are set as attributes so that they are only visited once by the visitors
|
|
parent::__construct($nodes, array(
|
|
'index' => null,
|
|
'embedded_templates' => $embeddedTemplates,
|
|
), 1);
|
|
|
|
// populate the template name of all node children
|
|
$this->setTemplateName($this->source->getName());
|
|
}
|
|
|
|
public function setIndex($index)
|
|
{
|
|
$this->setAttribute('index', $index);
|
|
}
|
|
|
|
public function compile(Twig_Compiler $compiler)
|
|
{
|
|
$this->compileTemplate($compiler);
|
|
|
|
foreach ($this->getAttribute('embedded_templates') as $template) {
|
|
$compiler->subcompile($template);
|
|
}
|
|
}
|
|
|
|
protected function compileTemplate(Twig_Compiler $compiler)
|
|
{
|
|
if (!$this->getAttribute('index')) {
|
|
$compiler->write('<?php');
|
|
}
|
|
|
|
$this->compileClassHeader($compiler);
|
|
|
|
if (
|
|
count($this->getNode('blocks'))
|
|
|| count($this->getNode('traits'))
|
|
|| !$this->hasNode('parent')
|
|
|| $this->getNode('parent') instanceof Twig_Node_Expression_Constant
|
|
|| count($this->getNode('constructor_start'))
|
|
|| count($this->getNode('constructor_end'))
|
|
) {
|
|
$this->compileConstructor($compiler);
|
|
}
|
|
|
|
$this->compileGetParent($compiler);
|
|
|
|
$this->compileDisplay($compiler);
|
|
|
|
$compiler->subcompile($this->getNode('blocks'));
|
|
|
|
$this->compileMacros($compiler);
|
|
|
|
$this->compileGetTemplateName($compiler);
|
|
|
|
$this->compileIsTraitable($compiler);
|
|
|
|
$this->compileDebugInfo($compiler);
|
|
|
|
$this->compileGetSourceContext($compiler);
|
|
|
|
$this->compileClassFooter($compiler);
|
|
}
|
|
|
|
protected function compileGetParent(Twig_Compiler $compiler)
|
|
{
|
|
if (!$this->hasNode('parent')) {
|
|
return;
|
|
}
|
|
$parent = $this->getNode('parent');
|
|
|
|
$compiler
|
|
->write("protected function doGetParent(array \$context)\n", "{\n")
|
|
->indent()
|
|
->addDebugInfo($parent)
|
|
->write('return ')
|
|
;
|
|
|
|
if ($parent instanceof Twig_Node_Expression_Constant) {
|
|
$compiler->subcompile($parent);
|
|
} else {
|
|
$compiler
|
|
->raw('$this->loadTemplate(')
|
|
->subcompile($parent)
|
|
->raw(', ')
|
|
->repr($this->source->getName())
|
|
->raw(', ')
|
|
->repr($parent->getTemplateLine())
|
|
->raw(')')
|
|
;
|
|
}
|
|
|
|
$compiler
|
|
->raw(";\n")
|
|
->outdent()
|
|
->write("}\n\n")
|
|
;
|
|
}
|
|
|
|
protected function compileClassHeader(Twig_Compiler $compiler)
|
|
{
|
|
$compiler
|
|
->write("\n\n")
|
|
// if the template name contains */, add a blank to avoid a PHP parse error
|
|
->write('/* '.str_replace('*/', '* /', $this->source->getName())." */\n")
|
|
->write('class '.$compiler->getEnvironment()->getTemplateClass($this->source->getName(), $this->getAttribute('index')))
|
|
->raw(sprintf(" extends %s\n", $compiler->getEnvironment()->getBaseTemplateClass()))
|
|
->write("{\n")
|
|
->indent()
|
|
;
|
|
}
|
|
|
|
protected function compileConstructor(Twig_Compiler $compiler)
|
|
{
|
|
$compiler
|
|
->write("public function __construct(Twig_Environment \$env)\n", "{\n")
|
|
->indent()
|
|
->subcompile($this->getNode('constructor_start'))
|
|
->write("parent::__construct(\$env);\n\n")
|
|
;
|
|
|
|
// parent
|
|
if (!$this->hasNode('parent')) {
|
|
$compiler->write("\$this->parent = false;\n\n");
|
|
} elseif (($parent = $this->getNode('parent')) && $parent instanceof Twig_Node_Expression_Constant) {
|
|
$compiler
|
|
->addDebugInfo($parent)
|
|
->write('$this->parent = $this->loadTemplate(')
|
|
->subcompile($parent)
|
|
->raw(', ')
|
|
->repr($this->source->getName())
|
|
->raw(', ')
|
|
->repr($parent->getTemplateLine())
|
|
->raw(");\n")
|
|
;
|
|
}
|
|
|
|
$countTraits = count($this->getNode('traits'));
|
|
if ($countTraits) {
|
|
// traits
|
|
foreach ($this->getNode('traits') as $i => $trait) {
|
|
$node = $trait->getNode('template');
|
|
|
|
$compiler
|
|
->write(sprintf('$_trait_%s = $this->loadTemplate(', $i))
|
|
->subcompile($node)
|
|
->raw(', ')
|
|
->repr($node->getTemplateName())
|
|
->raw(', ')
|
|
->repr($node->getTemplateLine())
|
|
->raw(");\n")
|
|
;
|
|
|
|
$compiler
|
|
->addDebugInfo($trait->getNode('template'))
|
|
->write(sprintf("if (!\$_trait_%s->isTraitable()) {\n", $i))
|
|
->indent()
|
|
->write("throw new Twig_Error_Runtime('Template \"'.")
|
|
->subcompile($trait->getNode('template'))
|
|
->raw(".'\" cannot be used as a trait.');\n")
|
|
->outdent()
|
|
->write("}\n")
|
|
->write(sprintf("\$_trait_%s_blocks = \$_trait_%s->getBlocks();\n\n", $i, $i))
|
|
;
|
|
|
|
foreach ($trait->getNode('targets') as $key => $value) {
|
|
$compiler
|
|
->write(sprintf('if (!isset($_trait_%s_blocks[', $i))
|
|
->string($key)
|
|
->raw("])) {\n")
|
|
->indent()
|
|
->write("throw new Twig_Error_Runtime(sprintf('Block ")
|
|
->string($key)
|
|
->raw(' is not defined in trait ')
|
|
->subcompile($trait->getNode('template'))
|
|
->raw(".'));\n")
|
|
->outdent()
|
|
->write("}\n\n")
|
|
|
|
->write(sprintf('$_trait_%s_blocks[', $i))
|
|
->subcompile($value)
|
|
->raw(sprintf('] = $_trait_%s_blocks[', $i))
|
|
->string($key)
|
|
->raw(sprintf(']; unset($_trait_%s_blocks[', $i))
|
|
->string($key)
|
|
->raw("]);\n\n")
|
|
;
|
|
}
|
|
}
|
|
|
|
if ($countTraits > 1) {
|
|
$compiler
|
|
->write("\$this->traits = array_merge(\n")
|
|
->indent()
|
|
;
|
|
|
|
for ($i = 0; $i < $countTraits; ++$i) {
|
|
$compiler
|
|
->write(sprintf('$_trait_%s_blocks'.($i == $countTraits - 1 ? '' : ',')."\n", $i))
|
|
;
|
|
}
|
|
|
|
$compiler
|
|
->outdent()
|
|
->write(");\n\n")
|
|
;
|
|
} else {
|
|
$compiler
|
|
->write("\$this->traits = \$_trait_0_blocks;\n\n")
|
|
;
|
|
}
|
|
|
|
$compiler
|
|
->write("\$this->blocks = array_merge(\n")
|
|
->indent()
|
|
->write("\$this->traits,\n")
|
|
->write("array(\n")
|
|
;
|
|
} else {
|
|
$compiler
|
|
->write("\$this->blocks = array(\n")
|
|
;
|
|
}
|
|
|
|
// blocks
|
|
$compiler
|
|
->indent()
|
|
;
|
|
|
|
foreach ($this->getNode('blocks') as $name => $node) {
|
|
$compiler
|
|
->write(sprintf("'%s' => array(\$this, 'block_%s'),\n", $name, $name))
|
|
;
|
|
}
|
|
|
|
if ($countTraits) {
|
|
$compiler
|
|
->outdent()
|
|
->write(")\n")
|
|
;
|
|
}
|
|
|
|
$compiler
|
|
->outdent()
|
|
->write(");\n")
|
|
->outdent()
|
|
->subcompile($this->getNode('constructor_end'))
|
|
->write("}\n\n")
|
|
;
|
|
}
|
|
|
|
protected function compileDisplay(Twig_Compiler $compiler)
|
|
{
|
|
$compiler
|
|
->write("protected function doDisplay(array \$context, array \$blocks = array())\n", "{\n")
|
|
->indent()
|
|
->subcompile($this->getNode('display_start'))
|
|
->subcompile($this->getNode('body'))
|
|
;
|
|
|
|
if ($this->hasNode('parent')) {
|
|
$parent = $this->getNode('parent');
|
|
$compiler->addDebugInfo($parent);
|
|
if ($parent instanceof Twig_Node_Expression_Constant) {
|
|
$compiler->write('$this->parent');
|
|
} else {
|
|
$compiler->write('$this->getParent($context)');
|
|
}
|
|
$compiler->raw("->display(\$context, array_merge(\$this->blocks, \$blocks));\n");
|
|
}
|
|
|
|
$compiler
|
|
->subcompile($this->getNode('display_end'))
|
|
->outdent()
|
|
->write("}\n\n")
|
|
;
|
|
}
|
|
|
|
protected function compileClassFooter(Twig_Compiler $compiler)
|
|
{
|
|
$compiler
|
|
->subcompile($this->getNode('class_end'))
|
|
->outdent()
|
|
->write("}\n")
|
|
;
|
|
}
|
|
|
|
protected function compileMacros(Twig_Compiler $compiler)
|
|
{
|
|
$compiler->subcompile($this->getNode('macros'));
|
|
}
|
|
|
|
protected function compileGetTemplateName(Twig_Compiler $compiler)
|
|
{
|
|
$compiler
|
|
->write("public function getTemplateName()\n", "{\n")
|
|
->indent()
|
|
->write('return ')
|
|
->repr($this->source->getName())
|
|
->raw(";\n")
|
|
->outdent()
|
|
->write("}\n\n")
|
|
;
|
|
}
|
|
|
|
protected function compileIsTraitable(Twig_Compiler $compiler)
|
|
{
|
|
// A template can be used as a trait if:
|
|
// * it has no parent
|
|
// * it has no macros
|
|
// * it has no body
|
|
//
|
|
// Put another way, a template can be used as a trait if it
|
|
// only contains blocks and use statements.
|
|
$traitable = !$this->hasNode('parent') && 0 === count($this->getNode('macros'));
|
|
if ($traitable) {
|
|
if ($this->getNode('body') instanceof Twig_Node_Body) {
|
|
$nodes = $this->getNode('body')->getNode(0);
|
|
} else {
|
|
$nodes = $this->getNode('body');
|
|
}
|
|
|
|
if (!count($nodes)) {
|
|
$nodes = new Twig_Node(array($nodes));
|
|
}
|
|
|
|
foreach ($nodes as $node) {
|
|
if (!count($node)) {
|
|
continue;
|
|
}
|
|
|
|
if ($node instanceof Twig_Node_Text && ctype_space($node->getAttribute('data'))) {
|
|
continue;
|
|
}
|
|
|
|
if ($node instanceof Twig_Node_BlockReference) {
|
|
continue;
|
|
}
|
|
|
|
$traitable = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ($traitable) {
|
|
return;
|
|
}
|
|
|
|
$compiler
|
|
->write("public function isTraitable()\n", "{\n")
|
|
->indent()
|
|
->write(sprintf("return %s;\n", $traitable ? 'true' : 'false'))
|
|
->outdent()
|
|
->write("}\n\n")
|
|
;
|
|
}
|
|
|
|
protected function compileDebugInfo(Twig_Compiler $compiler)
|
|
{
|
|
$compiler
|
|
->write("public function getDebugInfo()\n", "{\n")
|
|
->indent()
|
|
->write(sprintf("return %s;\n", str_replace("\n", '', var_export(array_reverse($compiler->getDebugInfo(), true), true))))
|
|
->outdent()
|
|
->write("}\n\n")
|
|
;
|
|
}
|
|
|
|
protected function compileGetSourceContext(Twig_Compiler $compiler)
|
|
{
|
|
$compiler
|
|
->write("public function getSourceContext()\n", "{\n")
|
|
->indent()
|
|
->write('return new Twig_Source(')
|
|
->string($compiler->getEnvironment()->isDebug() ? $this->source->getCode() : '')
|
|
->raw(', ')
|
|
->string($this->source->getName())
|
|
->raw(', ')
|
|
->string($this->source->getPath())
|
|
->raw(");\n")
|
|
->outdent()
|
|
->write("}\n")
|
|
;
|
|
}
|
|
|
|
protected function compileLoadTemplate(Twig_Compiler $compiler, $node, $var)
|
|
{
|
|
if ($node instanceof Twig_Node_Expression_Constant) {
|
|
$compiler
|
|
->write(sprintf('%s = $this->loadTemplate(', $var))
|
|
->subcompile($node)
|
|
->raw(', ')
|
|
->repr($node->getTemplateName())
|
|
->raw(', ')
|
|
->repr($node->getTemplateLine())
|
|
->raw(");\n")
|
|
;
|
|
} else {
|
|
throw new LogicException('Trait templates can only be constant nodes.');
|
|
}
|
|
}
|
|
}
|