1 files changed, 123 insertions, 0 deletions
diff --git a/vendor/sebastian/type/src/ReflectionMapper.php b/vendor/sebastian/type/src/ReflectionMapper.php
new file mode 100644
index 000000000..db9baf425
--- /dev/null
+++ b/vendor/sebastian/type/src/ReflectionMapper.php
@@ -0,0 +1,123 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/type.
+ *
+ * (c) Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Type;
+
+use function assert;
+use function sprintf;
+use ReflectionMethod;
+use ReflectionNamedType;
+use ReflectionType;
+use ReflectionUnionType;
+
+final class ReflectionMapper
+{
+    public function fromMethodReturnType(ReflectionMethod $method): Type
+    {
+        if (!$this->reflectionMethodHasReturnType($method)) {
+            return new UnknownType;
+        }
+
+        $returnType = $this->reflectionMethodGetReturnType($method);
+
+        assert($returnType instanceof ReflectionNamedType || $returnType instanceof ReflectionUnionType);
+
+        if ($returnType instanceof ReflectionNamedType) {
+            if ($returnType->getName() === 'self') {
+                return ObjectType::fromName(
+                    $method->getDeclaringClass()->getName(),
+                    $returnType->allowsNull()
+                );
+            }
+
+            if ($returnType->getName() === 'static') {
+                return new StaticType(
+                    TypeName::fromReflection($method->getDeclaringClass()),
+                    $returnType->allowsNull()
+                );
+            }
+
+            if ($returnType->getName() === 'mixed') {
+                return new MixedType;
+            }
+
+            if ($returnType->getName() === 'parent') {
+                $parentClass = $method->getDeclaringClass()->getParentClass();
+
+                // @codeCoverageIgnoreStart
+                if ($parentClass === false) {
+                    throw new RuntimeException(
+                        sprintf(
+                            '%s::%s() has a "parent" return type declaration but %s does not have a parent class',
+                            $method->getDeclaringClass()->getName(),
+                            $method->getName(),
+                            $method->getDeclaringClass()->getName()
+                        )
+                    );
+                }
+                // @codeCoverageIgnoreEnd
+
+                return ObjectType::fromName(
+                    $parentClass->getName(),
+                    $returnType->allowsNull()
+                );
+            }
+
+            return Type::fromName(
+                $returnType->getName(),
+                $returnType->allowsNull()
+            );
+        }
+
+        assert($returnType instanceof ReflectionUnionType);
+
+        $types = [];
+
+        foreach ($returnType->getTypes() as $type) {
+            assert($type instanceof ReflectionNamedType);
+
+            if ($type->getName() === 'self') {
+                $types[] = ObjectType::fromName(
+                    $method->getDeclaringClass()->getName(),
+                    false
+                );
+            } else {
+                $types[] = Type::fromName($type->getName(), false);
+            }
+        }
+
+        return new UnionType(...$types);
+    }
+
+    private function reflectionMethodHasReturnType(ReflectionMethod $method): bool
+    {
+        if ($method->hasReturnType()) {
+            return true;
+        }
+
+        if (!method_exists($method, 'hasTentativeReturnType')) {
+            return false;
+        }
+
+        return $method->hasTentativeReturnType();
+    }
+
+    private function reflectionMethodGetReturnType(ReflectionMethod $method): ?ReflectionType
+    {
+        if ($method->hasReturnType()) {
+            return $method->getReturnType();
+        }
+
+        if (!method_exists($method, 'getTentativeReturnType')) {
+            return null;
+        }
+
+        return $method->getTentativeReturnType();
+    }
+}