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<?php declare(strict_types=1); /* * This file is part of sebastian/code-unit-reverse-lookup. * * (c) Sebastian Bergmann <sebastian@phpunit.de> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace SebastianBergmann\CodeUnitReverseLookup; use function array_merge; use function assert; use function class_exists; use function function_exists; use function get_declared_classes; use function get_declared_traits; use function get_defined_functions; use function is_array; use function is_int; use function is_string; use function range; use function trait_exists; use ReflectionClass; use ReflectionFunction; use ReflectionMethod; final class Wizard { /** * @var array<string, array<int, string>> */ private array $lookupTable = []; /** * @var array<class-string, true> */ private array $processedClasses = []; /** * @var array<string, true> */ private array $processedFunctions = []; public function lookup(string $filename, int $lineNumber): string { if (!isset($this->lookupTable[$filename][$lineNumber])) { $this->updateLookupTable(); } if (isset($this->lookupTable[$filename][$lineNumber])) { return $this->lookupTable[$filename][$lineNumber]; } return $filename . ':' . $lineNumber; } private function updateLookupTable(): void { $this->processClassesAndTraits(); $this->processFunctions(); } private function processClassesAndTraits(): void { $classes = get_declared_classes(); $traits = get_declared_traits(); assert(is_array($traits)); foreach (array_merge($classes, $traits) as $classOrTrait) { assert(class_exists($classOrTrait) || trait_exists($classOrTrait)); if (isset($this->processedClasses[$classOrTrait])) { continue; } foreach ((new ReflectionClass($classOrTrait))->getMethods() as $method) { $this->processFunctionOrMethod($method); } $this->processedClasses[$classOrTrait] = true; } } private function processFunctions(): void { foreach (get_defined_functions()['user'] as $function) { assert(function_exists($function)); if (isset($this->processedFunctions[$function])) { continue; } $this->processFunctionOrMethod(new ReflectionFunction($function)); $this->processedFunctions[$function] = true; } } private function processFunctionOrMethod(ReflectionFunction|ReflectionMethod $functionOrMethod): void { if ($functionOrMethod->isInternal()) { return; } $name = $functionOrMethod->getName(); if ($functionOrMethod instanceof ReflectionMethod) { $name = $functionOrMethod->getDeclaringClass()->getName() . '::' . $name; } $fileName = $functionOrMethod->getFileName(); assert(is_string($fileName)); if (!isset($this->lookupTable[$fileName])) { $this->lookupTable[$fileName] = []; } $startLine = $functionOrMethod->getStartLine(); $endLine = $functionOrMethod->getEndLine(); assert(is_int($startLine)); assert(is_int($endLine)); assert($endLine >= $startLine); foreach (range($startLine, $endLine) as $line) { $this->lookupTable[$fileName][$line] = $name; } } }
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