Symfony Profiler

<?php
/*
* This file is part of Twig.
*
* (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.
*/
namespace Twig\Node;
use Twig\Attribute\YieldReady;
use Twig\Compiler;
use Twig\Node\Expression\AbstractExpression;
use Twig\Node\Expression\ConstantExpression;
use Twig\Source;
/**
* Represents a module node.
*
* If you need to customize the behavior of the generated class, add nodes to
* the following nodes: display_start, display_end, constructor_start,
* constructor_end, and class_end.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
#[YieldReady]
final class ModuleNode extends Node
{
/**
* @param BodyNode $body
*/
public function __construct(Node $body, ?AbstractExpression $parent, Node $blocks, Node $macros, Node $traits, $embeddedTemplates, Source $source)
{
if (!$body instanceof BodyNode) {
trigger_deprecation('twig/twig', '3.12', \sprintf('Not passing a "%s" instance as the "body" argument of the "%s" constructor is deprecated.', BodyNode::class, static::class));
}
if (!$embeddedTemplates instanceof Node) {
trigger_deprecation('twig/twig', '3.21', \sprintf('Not passing a "%s" instance as the "embedded_templates" argument of the "%s" constructor is deprecated.', Node::class, static::class));
if (null !== $embeddedTemplates) {
$embeddedTemplates = new Nodes($embeddedTemplates);
} else {
$embeddedTemplates = new EmptyNode();
}
}
$nodes = [
'body' => $body,
'blocks' => $blocks,
'macros' => $macros,
'traits' => $traits,
'display_start' => new Nodes(),
'display_end' => new Nodes(),
'constructor_start' => new Nodes(),
'constructor_end' => new Nodes(),
'class_end' => new Nodes(),
];
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, [
'index' => null,
'embedded_templates' => $embeddedTemplates,
], 1);
// populate the template name of all node children
$this->setSourceContext($source);
}
/**
* @return void
*/
public function setIndex($index)
{
$this->setAttribute('index', $index);
}
public function compile(Compiler $compiler): void
{
$this->compileTemplate($compiler);
foreach ($this->getAttribute('embedded_templates') as $template) {
$compiler->subcompile($template);
}
}
/**
* @return void
*/
protected function compileTemplate(Compiler $compiler)
{
if (!$this->getAttribute('index')) {
$compiler->write('<?php');
}
$this->compileClassHeader($compiler);
$this->compileConstructor($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);
}
/**
* @return void
*/
protected function compileGetParent(Compiler $compiler)
{
if (!$this->hasNode('parent')) {
return;
}
$parent = $this->getNode('parent');
$compiler
->write("protected function doGetParent(array \$context): bool|string|Template|TemplateWrapper\n", "{\n")
->indent()
->addDebugInfo($parent)
->write('return ')
;
if ($parent instanceof ConstantExpression) {
$compiler->subcompile($parent);
} else {
$compiler
->raw('$this->load(')
->subcompile($parent)
->raw(', ')
->repr($parent->getTemplateLine())
->raw(')')
;
}
$compiler
->raw(";\n")
->outdent()
->write("}\n\n")
;
}
/**
* @return void
*/
protected function compileClassHeader(Compiler $compiler)
{
$compiler
->write("\n\n")
;
if (!$this->getAttribute('index')) {
$compiler
->write("use Twig\Environment;\n")
->write("use Twig\Error\LoaderError;\n")
->write("use Twig\Error\RuntimeError;\n")
->write("use Twig\Extension\CoreExtension;\n")
->write("use Twig\Extension\SandboxExtension;\n")
->write("use Twig\Markup;\n")
->write("use Twig\Sandbox\SecurityError;\n")
->write("use Twig\Sandbox\SecurityNotAllowedTagError;\n")
->write("use Twig\Sandbox\SecurityNotAllowedFilterError;\n")
->write("use Twig\Sandbox\SecurityNotAllowedFunctionError;\n")
->write("use Twig\Source;\n")
->write("use Twig\Template;\n")
->write("use Twig\TemplateWrapper;\n")
->write("\n")
;
}
$compiler
// if the template name contains */, add a blank to avoid a PHP parse error
->write('/* '.str_replace('*/', '* /', $this->getSourceContext()->getName())." */\n")
->write('class '.$compiler->getEnvironment()->getTemplateClass($this->getSourceContext()->getName(), $this->getAttribute('index')))
->raw(" extends Template\n")
->write("{\n")
->indent()
->write("private Source \$source;\n")
->write("/**\n")
->write(" * @var array<string, Template>\n")
->write(" */\n")
->write("private array \$macros = [];\n\n")
;
}
/**
* @return void
*/
protected function compileConstructor(Compiler $compiler)
{
$compiler
->write("public function __construct(Environment \$env)\n", "{\n")
->indent()
->subcompile($this->getNode('constructor_start'))
->write("parent::__construct(\$env);\n\n")
->write("\$this->source = \$this->getSourceContext();\n\n")
;
// parent
if (!$this->hasNode('parent')) {
$compiler->write("\$this->parent = false;\n\n");
}
$countTraits = \count($this->getNode('traits'));
if ($countTraits) {
// traits
foreach ($this->getNode('traits') as $i => $trait) {
$node = $trait->getNode('template');
$compiler
->addDebugInfo($node)
->write(\sprintf('$_trait_%s = $this->load(', $i))
->subcompile($node)
->raw(', ')
->repr($node->getTemplateLine())
->raw(");\n")
->write(\sprintf("if (!\$_trait_%s->unwrap()->isTraitable()) {\n", $i))
->indent()
->write("throw new RuntimeError('Template \"'.")
->subcompile($trait->getNode('template'))
->raw(".'\" cannot be used as a trait.', ")
->repr($node->getTemplateLine())
->raw(", \$this->source);\n")
->outdent()
->write("}\n")
->write(\sprintf("\$_trait_%s_blocks = \$_trait_%s->unwrap()->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 RuntimeError('Block ")
->string($key)
->raw(' is not defined in trait ')
->subcompile($trait->getNode('template'))
->raw(".', ")
->repr($node->getTemplateLine())
->raw(", \$this->source);\n")
->outdent()
->write("}\n\n")
->write(\sprintf('$_trait_%s_blocks[', $i))
->subcompile($value)
->raw(\sprintf('] = $_trait_%s_blocks[', $i))
->string($key)
->raw(\sprintf(']; unset($_trait_%s_blocks[', $i))
->string($key)
->raw(']); $this->traitAliases[')
->subcompile($value)
->raw('] = ')
->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("[\n")
;
} else {
$compiler
->write("\$this->blocks = [\n")
;
}
// blocks
$compiler
->indent()
;
foreach ($this->getNode('blocks') as $name => $node) {
$compiler
->write(\sprintf("'%s' => [\$this, 'block_%s'],\n", $name, $name))
;
}
if ($countTraits) {
$compiler
->outdent()
->write("]\n")
->outdent()
->write(");\n")
;
} else {
$compiler
->outdent()
->write("];\n")
;
}
$compiler
->subcompile($this->getNode('constructor_end'))
->outdent()
->write("}\n\n")
;
}
/**
* @return void
*/
protected function compileDisplay(Compiler $compiler)
{
$compiler
->write("protected function doDisplay(array \$context, array \$blocks = []): iterable\n", "{\n")
->indent()
->write("\$macros = \$this->macros;\n")
->subcompile($this->getNode('display_start'))
->subcompile($this->getNode('body'))
;
if ($this->hasNode('parent')) {
$parent = $this->getNode('parent');
$compiler->addDebugInfo($parent);
if ($parent instanceof ConstantExpression) {
$compiler
->write('$this->parent = $this->load(')
->subcompile($parent)
->raw(', ')
->repr($parent->getTemplateLine())
->raw(");\n")
;
}
$compiler->write('yield from ');
if ($parent instanceof ConstantExpression) {
$compiler->raw('$this->parent');
} else {
$compiler->raw('$this->getParent($context)');
}
$compiler->raw("->unwrap()->yield(\$context, array_merge(\$this->blocks, \$blocks));\n");
}
$compiler->subcompile($this->getNode('display_end'));
if (!$this->hasNode('parent')) {
$compiler->write("yield from [];\n");
}
$compiler
->outdent()
->write("}\n\n")
;
}
/**
* @return void
*/
protected function compileClassFooter(Compiler $compiler)
{
$compiler
->subcompile($this->getNode('class_end'))
->outdent()
->write("}\n")
;
}
/**
* @return void
*/
protected function compileMacros(Compiler $compiler)
{
$compiler->subcompile($this->getNode('macros'));
}
/**
* @return void
*/
protected function compileGetTemplateName(Compiler $compiler)
{
$compiler
->write("/**\n")
->write(" * @codeCoverageIgnore\n")
->write(" */\n")
->write("public function getTemplateName(): string\n", "{\n")
->indent()
->write('return ')
->repr($this->getSourceContext()->getName())
->raw(";\n")
->outdent()
->write("}\n\n")
;
}
/**
* @return void
*/
protected function compileIsTraitable(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 BodyNode) {
$nodes = $this->getNode('body')->getNode('0');
} else {
$nodes = $this->getNode('body');
}
if (!\count($nodes)) {
$nodes = new Nodes([$nodes]);
}
foreach ($nodes as $node) {
if (!\count($node)) {
continue;
}
$traitable = false;
break;
}
}
if ($traitable) {
return;
}
$compiler
->write("/**\n")
->write(" * @codeCoverageIgnore\n")
->write(" */\n")
->write("public function isTraitable(): bool\n", "{\n")
->indent()
->write("return false;\n")
->outdent()
->write("}\n\n")
;
}
/**
* @return void
*/
protected function compileDebugInfo(Compiler $compiler)
{
$compiler
->write("/**\n")
->write(" * @codeCoverageIgnore\n")
->write(" */\n")
->write("public function getDebugInfo(): array\n", "{\n")
->indent()
->write(\sprintf("return %s;\n", str_replace("\n", '', var_export(array_reverse($compiler->getDebugInfo(), true), true))))
->outdent()
->write("}\n\n")
;
}
/**
* @return void
*/
protected function compileGetSourceContext(Compiler $compiler)
{
$compiler
->write("public function getSourceContext(): Source\n", "{\n")
->indent()
->write('return new Source(')
->string($compiler->getEnvironment()->isDebug() ? $this->getSourceContext()->getCode() : '')
->raw(', ')
->string($this->getSourceContext()->getName())
->raw(', ')
->string($this->getSourceContext()->getPath())
->raw(");\n")
->outdent()
->write("}\n")
;
}
}

vendor/twig/twig/src/Node/ModuleNode.php line 84