220 lines
10 KiB
PHP
220 lines
10 KiB
PHP
<?php
|
|
|
|
/*
|
|
* This file is part of Twig.
|
|
*
|
|
* (c) Fabien Potencier
|
|
*
|
|
* For the full copyright and license information, please view the LICENSE
|
|
* file that was distributed with this source code.
|
|
*/
|
|
|
|
namespace Twig\Util;
|
|
|
|
use Twig\Error\SyntaxError;
|
|
use Twig\Node\Expression\ArrayExpression;
|
|
use Twig\Node\Expression\ConstantExpression;
|
|
use Twig\Node\Expression\VariadicExpression;
|
|
use Twig\Node\Node;
|
|
use Twig\TwigCallableInterface;
|
|
|
|
/**
|
|
* @author Fabien Potencier <fabien@symfony.com>
|
|
*
|
|
* @internal
|
|
*/
|
|
final class CallableArgumentsExtractor
|
|
{
|
|
private ReflectionCallable $rc;
|
|
|
|
public function __construct(
|
|
private Node $node,
|
|
private TwigCallableInterface $twigCallable,
|
|
) {
|
|
$this->rc = new ReflectionCallable($twigCallable);
|
|
}
|
|
|
|
/**
|
|
* @return array<Node>
|
|
*/
|
|
public function extractArguments(Node $arguments): array
|
|
{
|
|
$extractedArguments = [];
|
|
$extractedArgumentNameMap = [];
|
|
$named = false;
|
|
foreach ($arguments as $name => $node) {
|
|
if (!\is_int($name)) {
|
|
$named = true;
|
|
} elseif ($named) {
|
|
throw new SyntaxError(\sprintf('Positional arguments cannot be used after named arguments for %s "%s".', $this->twigCallable->getType(), $this->twigCallable->getName()), $this->node->getTemplateLine(), $this->node->getSourceContext());
|
|
}
|
|
|
|
$extractedArguments[$normalizedName = $this->normalizeName($name)] = $node;
|
|
$extractedArgumentNameMap[$normalizedName] = $name;
|
|
}
|
|
|
|
if (!$named && !$this->twigCallable->isVariadic()) {
|
|
$min = $this->twigCallable->getMinimalNumberOfRequiredArguments();
|
|
if (\count($extractedArguments) < $this->rc->getReflector()->getNumberOfRequiredParameters() - $min) {
|
|
$argName = $this->toSnakeCase($this->rc->getReflector()->getParameters()[$min + \count($extractedArguments)]->getName());
|
|
|
|
throw new SyntaxError(\sprintf('Value for argument "%s" is required for %s "%s".', $argName, $this->twigCallable->getType(), $this->twigCallable->getName()), $this->node->getTemplateLine(), $this->node->getSourceContext());
|
|
}
|
|
|
|
return $extractedArguments;
|
|
}
|
|
|
|
if (!$callable = $this->twigCallable->getCallable()) {
|
|
if ($named) {
|
|
throw new SyntaxError(\sprintf('Named arguments are not supported for %s "%s".', $this->twigCallable->getType(), $this->twigCallable->getName()));
|
|
}
|
|
|
|
throw new SyntaxError(\sprintf('Arbitrary positional arguments are not supported for %s "%s".', $this->twigCallable->getType(), $this->twigCallable->getName()));
|
|
}
|
|
|
|
[$callableParameters, $isPhpVariadic] = $this->getCallableParameters();
|
|
$arguments = [];
|
|
$callableParameterNames = [];
|
|
$missingArguments = [];
|
|
$optionalArguments = [];
|
|
$pos = 0;
|
|
foreach ($callableParameters as $callableParameter) {
|
|
$callableParameterName = $callableParameter->name;
|
|
if (\PHP_VERSION_ID >= 80000 && 'range' === $callable) {
|
|
if ('start' === $callableParameterName) {
|
|
$callableParameterName = 'low';
|
|
} elseif ('end' === $callableParameterName) {
|
|
$callableParameterName = 'high';
|
|
}
|
|
}
|
|
|
|
$callableParameterNames[] = $callableParameterName;
|
|
$normalizedCallableParameterName = $this->normalizeName($callableParameterName);
|
|
|
|
if (\array_key_exists($normalizedCallableParameterName, $extractedArguments)) {
|
|
if (\array_key_exists($pos, $extractedArguments)) {
|
|
throw new SyntaxError(\sprintf('Argument "%s" is defined twice for %s "%s".', $callableParameterName, $this->twigCallable->getType(), $this->twigCallable->getName()), $this->node->getTemplateLine(), $this->node->getSourceContext());
|
|
}
|
|
|
|
if (\count($missingArguments)) {
|
|
throw new SyntaxError(\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".',
|
|
$callableParameterName, $this->twigCallable->getType(), $this->twigCallable->getName(), implode(', ', array_map([$this, 'toSnakeCase'], $callableParameterNames)), \count($missingArguments) > 1 ? 's' : '', implode('", "', $missingArguments)
|
|
), $this->node->getTemplateLine(), $this->node->getSourceContext());
|
|
}
|
|
|
|
$arguments = array_merge($arguments, $optionalArguments);
|
|
$arguments[] = $extractedArguments[$normalizedCallableParameterName];
|
|
unset($extractedArguments[$normalizedCallableParameterName]);
|
|
$optionalArguments = [];
|
|
} elseif (\array_key_exists($pos, $extractedArguments)) {
|
|
$arguments = array_merge($arguments, $optionalArguments);
|
|
$arguments[] = $extractedArguments[$pos];
|
|
unset($extractedArguments[$pos]);
|
|
$optionalArguments = [];
|
|
++$pos;
|
|
} elseif ($callableParameter->isDefaultValueAvailable()) {
|
|
$optionalArguments[] = new ConstantExpression($callableParameter->getDefaultValue(), $this->node->getTemplateLine());
|
|
} elseif ($callableParameter->isOptional()) {
|
|
if (!$extractedArguments) {
|
|
break;
|
|
}
|
|
|
|
$missingArguments[] = $callableParameterName;
|
|
} else {
|
|
throw new SyntaxError(\sprintf('Value for argument "%s" is required for %s "%s".', $this->toSnakeCase($callableParameterName), $this->twigCallable->getType(), $this->twigCallable->getName()), $this->node->getTemplateLine(), $this->node->getSourceContext());
|
|
}
|
|
}
|
|
|
|
if ($this->twigCallable->isVariadic()) {
|
|
$arbitraryArguments = $isPhpVariadic ? new VariadicExpression([], $this->node->getTemplateLine()) : new ArrayExpression([], $this->node->getTemplateLine());
|
|
foreach ($extractedArguments as $key => $value) {
|
|
if (\is_int($key)) {
|
|
$arbitraryArguments->addElement($value);
|
|
} else {
|
|
$originalKey = $extractedArgumentNameMap[$key];
|
|
if ($originalKey !== $this->toSnakeCase($originalKey)) {
|
|
trigger_deprecation('twig/twig', '3.15', \sprintf('Using "snake_case" for variadic arguments is required for a smooth upgrade with Twig 4.0; rename "%s" to "%s" in "%s" at line %d.', $originalKey, $this->toSnakeCase($originalKey), $this->node->getSourceContext()->getName(), $this->node->getTemplateLine()));
|
|
}
|
|
$arbitraryArguments->addElement($value, new ConstantExpression($this->toSnakeCase($originalKey), $this->node->getTemplateLine()));
|
|
// I Twig 4.0, don't convert the key:
|
|
// $arbitraryArguments->addElement($value, new ConstantExpression($originalKey, $this->node->getTemplateLine()));
|
|
}
|
|
unset($extractedArguments[$key]);
|
|
}
|
|
|
|
if ($arbitraryArguments->count()) {
|
|
$arguments = array_merge($arguments, $optionalArguments);
|
|
$arguments[] = $arbitraryArguments;
|
|
}
|
|
}
|
|
|
|
if ($extractedArguments) {
|
|
$unknownArgument = null;
|
|
foreach ($extractedArguments as $extractedArgument) {
|
|
if ($extractedArgument instanceof Node) {
|
|
$unknownArgument = $extractedArgument;
|
|
break;
|
|
}
|
|
}
|
|
|
|
throw new SyntaxError(
|
|
\sprintf(
|
|
'Unknown argument%s "%s" for %s "%s(%s)".',
|
|
\count($extractedArguments) > 1 ? 's' : '', implode('", "', array_keys($extractedArguments)), $this->twigCallable->getType(), $this->twigCallable->getName(), implode(', ', array_map([$this, 'toSnakeCase'], $callableParameterNames))
|
|
),
|
|
$unknownArgument ? $unknownArgument->getTemplateLine() : $this->node->getTemplateLine(),
|
|
$unknownArgument ? $unknownArgument->getSourceContext() : $this->node->getSourceContext()
|
|
);
|
|
}
|
|
|
|
return $arguments;
|
|
}
|
|
|
|
private function normalizeName(string $name): string
|
|
{
|
|
return strtolower(str_replace('_', '', $name));
|
|
}
|
|
|
|
private function toSnakeCase(string $name): string
|
|
{
|
|
return strtolower(preg_replace(['/([A-Z]+)([A-Z][a-z])/', '/([a-z0-9])([A-Z])/'], '\1_\2', $name));
|
|
}
|
|
|
|
private function getCallableParameters(): array
|
|
{
|
|
$parameters = $this->rc->getReflector()->getParameters();
|
|
if ($this->node->hasNode('node')) {
|
|
array_shift($parameters);
|
|
}
|
|
if ($this->twigCallable->needsCharset()) {
|
|
array_shift($parameters);
|
|
}
|
|
if ($this->twigCallable->needsEnvironment()) {
|
|
array_shift($parameters);
|
|
}
|
|
if ($this->twigCallable->needsContext()) {
|
|
array_shift($parameters);
|
|
}
|
|
foreach ($this->twigCallable->getArguments() as $argument) {
|
|
array_shift($parameters);
|
|
}
|
|
|
|
$isPhpVariadic = false;
|
|
if ($this->twigCallable->isVariadic()) {
|
|
$argument = end($parameters);
|
|
$isArray = $argument && $argument->hasType() && $argument->getType() instanceof \ReflectionNamedType && 'array' === $argument->getType()->getName();
|
|
if ($isArray && $argument->isDefaultValueAvailable() && [] === $argument->getDefaultValue()) {
|
|
array_pop($parameters);
|
|
} elseif ($argument && $argument->isVariadic()) {
|
|
array_pop($parameters);
|
|
$isPhpVariadic = true;
|
|
} else {
|
|
throw new SyntaxError(\sprintf('The last parameter of "%s" for %s "%s" must be an array with default value, eg. "array $arg = []".', $this->rc->getName(), $this->twigCallable->getType(), $this->twigCallable->getName()));
|
|
}
|
|
}
|
|
|
|
return [$parameters, $isPhpVariadic];
|
|
}
|
|
}
|