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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Proxy; |
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use Yiisoft\Proxy\Config\ClassConfig; |
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use Yiisoft\Proxy\Config\MethodConfig; |
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use Yiisoft\Proxy\Config\ParameterConfig; |
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use Yiisoft\Proxy\Config\TypeConfig; |
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final class ClassRenderer |
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{ |
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private string $classSignatureTemplate = '{{modifiers}} {{classType}} {{name}}{{extends}}{{parent}}{{implements}}'; |
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private string $proxyMethodSignatureTemplate = '{{modifiers}} function {{name}}({{params}}){{returnType}}'; |
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private string $proxyMethodBodyTemplate = '{{return}}$this->call({{methodName}}, [{{params}}]);'; |
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public function render(ClassConfig $classConfig): string |
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{ |
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return trim($this->renderClassSignature($classConfig)) |
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. "\n" |
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. '{' |
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. $this->renderClassBody($classConfig) |
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. '}'; |
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} |
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private function renderClassSignature(ClassConfig $classConfig): string |
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{ |
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$classType = $classConfig->isInterface |
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? 'interface' |
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: 'class'; |
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$extends = $classConfig->parent |
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? ' extends ' |
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: ''; |
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return strtr($this->classSignatureTemplate, [ |
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'{{modifiers}}' => $this->renderModifiers($classConfig->modifiers), |
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'{{classType}}' => $classType, |
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'{{name}}' => $classConfig->shortName, |
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'{{extends}}' => $extends, |
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'{{parent}}' => $classConfig->parent, |
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'{{implements}}' => $this->renderImplements($classConfig->interfaces), |
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]); |
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} |
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private function renderImplements(array $interfaces): string |
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{ |
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$output = $interfaces !== [] |
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? ' implements ' . implode(', ', $interfaces) |
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: ''; |
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return $output; |
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} |
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private function renderModifiers(array $modifiers): string |
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{ |
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return implode(' ', $modifiers); |
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} |
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private function renderClassBody(ClassConfig $classConfig): string |
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{ |
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return $this->renderMethods($classConfig->methods); |
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} |
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/** |
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* @param MethodConfig[] $methods |
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* @return string |
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*/ |
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private function renderMethods(array $methods): string |
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{ |
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$methodsCode = ''; |
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foreach ($methods as $method) { |
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$methodsCode .= "\n" . $this->renderMethod($method); |
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} |
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return $methodsCode; |
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} |
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private function renderMethod(MethodConfig $method): string |
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{ |
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return $this->renderMethodSignature($method) |
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. "\n" . $this->margin() |
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. '{' |
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. $this->renderMethodBody($method) |
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. $this->margin() |
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. '}' |
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. "\n"; |
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} |
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private function renderMethodSignature(MethodConfig $method): string |
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{ |
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return strtr($this->proxyMethodSignatureTemplate, [ |
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'{{modifiers}}' => $this->margin() . $this->renderModifiers($method->modifiers), |
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'{{name}}' => $method->name, |
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'{{params}}' => $this->renderMethodParameters($method->parameters), |
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'{{returnType}}' => $this->renderReturnType($method), |
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]); |
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} |
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private function renderMethodParameters(array $parameters): string |
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{ |
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$params = ''; |
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foreach ($parameters as $parameter) { |
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$params .= $this->renderMethodParameter($parameter) . ', '; |
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} |
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return rtrim($params, ', '); |
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} |
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private function renderMethodParameter(ParameterConfig $parameter): string |
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{ |
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$type = $parameter->hasType |
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? $this->renderType($parameter->type) |
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: ''; |
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$output = $type |
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. ' $' |
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. $parameter->name |
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. $this->renderParameterDefaultValue($parameter); |
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return ltrim($output); |
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} |
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private function renderParameterDefaultValue(ParameterConfig $parameter): string |
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{ |
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if (!$parameter->isDefaultValueAvailable) { |
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return ''; |
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} |
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$value = $parameter->isDefaultValueConstant |
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? $parameter->defaultValueConstantName |
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: self::varExport($parameter->defaultValue); |
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return ' = ' . $value; |
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} |
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private function renderMethodBody(MethodConfig $method): string |
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{ |
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return "\n" . strtr($this->proxyMethodBodyTemplate, [ |
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'{{return}}' => $this->margin(2) . $this->renderReturn($method), |
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'{{methodName}}' => "'" . $method->name . "'", |
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'{{params}}' => $this->renderMethodCallParameters($method->parameters), |
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]) . "\n"; |
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} |
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private function renderReturn(MethodConfig $method): string |
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{ |
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$output = $method->returnType?->name === 'void' |
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? '' |
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: 'return '; |
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return $output; |
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} |
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private function renderReturnType(MethodConfig $method): string |
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{ |
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$output = $method->hasReturnType |
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? ': ' . $this->renderType($method->returnType) |
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: ''; |
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return $output; |
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} |
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private function renderType(TypeConfig $type): string |
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{ |
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$output = $type->allowsNull |
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? '?' |
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: ''; |
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$output .= $type->name; |
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return $output; |
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} |
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private function renderMethodCallParameters(array $parameters): string |
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{ |
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$keys = array_keys($parameters); |
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$output = $keys !== [] |
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? '$' . implode(', $', $keys) |
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: ''; |
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return $output; |
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} |
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private static function varExport(mixed $var): string |
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{ |
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$output = ''; |
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switch (gettype($var)) { |
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case 'boolean': |
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$output = $var |
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? 'true' |
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: 'false'; |
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break; |
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case 'integer': |
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case 'double': |
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$output = (string)$var; |
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break; |
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case 'string': |
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$output = "'" . addslashes($var) . "'"; |
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break; |
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case 'NULL': |
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$output = 'null'; |
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break; |
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case 'array': |
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if (empty($var)) { |
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$output .= '[]'; |
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} else { |
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$keys = array_keys($var); |
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$output .= '['; |
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foreach ($keys as $key) { |
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$output .= self::varExport($key); |
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$output .= ' => '; |
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$output .= self::varExport($var[$key]); |
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} |
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$output .= ']'; |
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} |
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break; |
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} |
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return $output; |
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} |
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private function margin(int $count = 1): string |
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{ |
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return str_repeat(' ', $count); |
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} |
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} |
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yiisoft /
proxy
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