TypeInfo::getParentType() - Code Metrics - fubhy/graphql-php - Measure and Improve Code Quality continuously with Scrutinizer

TypeInfo::getParentType() A
last analyzed 2016-04-28 00:47 UTC

↳ Parent: TypeInfo

Complexity

Conditions	2
Paths	2

Size

Total Lines	7
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	6

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	0
loc	7
ccs	0
cts	4
cp	0
rs	9.4285
cc	2
eloc	4
nc	2
nop	0
crap	6

<?php

namespace Fubhy\GraphQL\Utility;

use Fubhy\GraphQL\Language\Node;
use Fubhy\GraphQL\Language\Node\Field;
use Fubhy\GraphQL\Language\Node\ListType;
use Fubhy\GraphQL\Language\Node\NamedType;
use Fubhy\GraphQL\Language\Node\NonNullType;
use Fubhy\GraphQL\Schema;
use Fubhy\GraphQL\Type\Definition\FieldDefinition;
use Fubhy\GraphQL\Type\Definition\Types\InputObjectType;
use Fubhy\GraphQL\Type\Definition\Types\InterfaceType;
use Fubhy\GraphQL\Type\Definition\Types\ListModifier;
use Fubhy\GraphQL\Type\Definition\Types\NonNullModifier;
use Fubhy\GraphQL\Type\Definition\Types\ObjectType;
use Fubhy\GraphQL\Type\Definition\Types\Type;
use Fubhy\GraphQL\Type\Definition\Types\UnionType;
use Fubhy\GraphQL\Type\Introspection;

class TypeInfo
{
    /**
     * @var Schema
     */
    protected $_schema;

    /**
     * @var \Fubhy\GraphQL\Type\Directives\DirectiveInterface
     */
    protected $directive;

    /**
     * @var \SplStack<OutputType>
     */
    protected $typeStack;

    /**
     * @var \SplStack<CompositeType>
     */
    protected $parentTypeStack;

    /**
     * @var \SplStack<InputType>
     */
    protected $inputTypeStack;

    /**
     * @var \SplStack<FieldDefinition>
     */
    protected $fieldDefinitionStack;

    /**
     * @param Schema $schema
     * @param $inputType
     *
     * @return ListModifier|NonNullModifier|\Fubhy\GraphQL\Type\Definition\Types\TypeInterface|null
     */
    public static function typeFromAST(Schema $schema, $inputType)
    {
        if ($inputType instanceof ListType) {
            $innerType = self::typeFromAST($schema, $inputType->get('type'));
            return $innerType ? new ListModifier($innerType) : NULL;
        }

        if ($inputType instanceof NonNullType) {
            $innerType = self::typeFromAST($schema, $inputType->get('type'));
            return $innerType ? new NonNullModifier($innerType) : NULL;
        }

        if (!($inputType instanceof NamedType)) {
            throw new \LogicException('Must be a type name.');
        }

        return $schema->getType($inputType->get('name')->get('value'));
    }

    /**
     * Not exactly the same as the executor's definition of getFieldDef, in this
     * statically evaluated environment we do not always have an Object type,
     * and need to handle Interface and Union types.
     *
     * @param Schema $schema
     * @param Type $parentType
     * @param Field $fieldAST
     *
     * @return FieldDefinition
     */
    protected static function getFieldDefinition(Schema $schema, Type $parentType, Field $fieldAST)
    {
        $name = $fieldAST->get('name')->get('value');
        $schemaMeta = Introspection::schemaMetaFieldDefinition();
        if ($name === $schemaMeta->getName() && $schema->getQueryType() === $parentType) {
            return $schemaMeta;
        }

        $typeMeta = Introspection::typeMetaFieldDefinition();
        if ($name === $typeMeta->getName() && $schema->getQueryType() === $parentType) {
            return $typeMeta;
        }

        $typeNameMeta = Introspection::typeNameMetaFieldDefinition();
        if ($name === $typeNameMeta->getName() && ($parentType instanceof ObjectType || $parentType instanceof InterfaceType || $parentType instanceof UnionType)) {
            return $typeNameMeta;
        }

        if ($parentType instanceof ObjectType || $parentType instanceof InterfaceType) {
            $fields = $parentType->getFields();
            return isset($fields[$name]) ? $fields[$name] : NULL;
        }

        return NULL;
    }

    /**
     * Constructor.
     *
     * @param Schema $schema
     */
    public function __construct(Schema $schema)
    {
        $this->_schema = $schema;
        $this->typeStack = [];
        $this->parentTypeStack = [];
        $this->inputTypeStack = [];
        $this->fieldDefinitionStack = [];
    }

    /**
     * @return Type
     */
    protected function getType()
    {
        if (!empty($this->typeStack)) {
            return $this->typeStack[count($this->typeStack) - 1];
        }

        return NULL;
    }

    /**
     * @return Type
     */
    protected function getParentType()
    {
        if (!empty($this->parentTypeStack)) {
            return $this->parentTypeStack[count($this->parentTypeStack) - 1];
        }
        return NULL;
    }

    /**
     * @return mixed|null
     */
    protected function getInputType()
    {
        if (!empty($this->inputTypeStack)) {
            return $this->inputTypeStack[count($this->inputTypeStack) - 1];
        }
        return NULL;
    }

    /**
     * @param Node $node
     */
    protected function enter(Node $node)
    {
        $schema = $this->_schema;

        switch ($node::KIND) {
            case Node::KIND_SELECTION_SET:
                $rawType = $this->getType();
                $rawType = isset($rawType) ? $rawType->getUnmodifiedType() : NULL;
                $compositeType = NULL;
                if (isset($rawType) && $rawType->isCompositeType()) {
                    $compositeType = $rawType;
                }
                array_push($this->parentTypeStack, $compositeType);
                break;

            case Node::KIND_DIRECTIVE:
                $this->directive = $schema->getDirective($node->get('name')->get('value'));
                break;

            case Node::KIND_FIELD:
                $parentType = $this->getParentType();
                $fieldDefinition = NULL;
                if (isset($parentType)) {
                    $fieldDefinition = self::getFieldDefinition($schema, $parentType, $node);

                }
                array_push($this->fieldDefinitionStack, $fieldDefinition);
                array_push($this->typeStack, $fieldDefinition ? $fieldDefinition->getType() : NULL);
                break;

            case Node::KIND_OPERATION_DEFINITION:
                $type = NULL;
                if ($node->get('operation') === 'query') {
                    $type = $schema->getQueryType();
                } else if ($node->get('operation') === 'mutation') {
                    $type = $schema->getMutationType();
                }
                array_push($this->typeStack, $type);
                break;

            case Node::KIND_INLINE_FRAGMENT:
            case Node::KIND_FRAGMENT_DEFINITION:
                $type = $schema->getType($node->get('typeCondition')->get('value'));
                array_push($this->typeStack, $type);
                break;

            case Node::KIND_VARIABLE_DEFINITION:
                array_push($this->inputTypeStack, self::typeFromAST($schema, $node->get('type')));
                break;

            case Node::KIND_ARGUMENT:
                if (!empty($this->fieldDefinitionStack)) {
                    $field = $this->fieldDefinitionStack[count($this->fieldDefinitionStack) - 1];
                }
                else {
                    $field = NULL;
                }

                $argType = NULL;
                if ($field) {
                    $argDefinition = NULL;
                    foreach ($field->getArguments() as $arg) {
                        if ($arg->getName() === $node->get('name')->get('value')) {
                            $argDefinition = $arg;
                        }
                        break;
                    }

                    if ($argDefinition) {
                        $argType = $argDefinition->getType();
                    }
                }
                array_push($this->inputTypeStack, $argType);
                break;

            case Node::KIND_ARRAY_VALUE:
                $arrayType = $this->getInputType();
                $arrayType = isset($arrayType) ? $arrayType->getNullableType() : NULL;
                array_push(
                    $this->inputTypeStack,
                    $arrayType instanceof ListModifier ? $arrayType->getWrappedType() : NULL
                );
                break;

            case Node::KIND_OBJECT_FIELD:
                $objectType = $this->getInputType();
                $objectType = isset($objectType) ? $objectType->getUnmodifiedType() : NULL;
                $fieldType = NULL;
                if ($objectType instanceof InputObjectType) {
                    $tmp = $objectType->getFields();
                    $inputField = isset($tmp[$node->get('name')->get('value')]) ? $tmp[$node->get('name')->get('value')] : NULL;
                    $fieldType = $inputField ? $inputField->getType() : NULL;
                }
                array_push($this->inputTypeStack, $fieldType);
            break;
        }
    }

    /**
     * @param Node $node
     */
    protected function leave(Node $node)
    {
        switch ($node::KIND) {
            case Node::KIND_SELECTION_SET:
                array_pop($this->parentTypeStack);
                break;
            case Node::KIND_FIELD:
                array_pop($this->fieldDefinitionStack);
                array_pop($this->typeStack);
                break;
            case Node::KIND_DIRECTIVE:
                $this->directive = NULL;
                break;
            case Node::KIND_OPERATION_DEFINITION:
            case Node::KIND_INLINE_FRAGMENT:
            case Node::KIND_FRAGMENT_DEFINITION:
                array_pop($this->typeStack);
                break;
            case Node::KIND_VARIABLE_DEFINITION:
                array_pop($this->inputTypeStack);
                break;
            case Node::KIND_ARGUMENT:
                array_pop($this->inputTypeStack);
                break;
            case Node::KIND_ARRAY_VALUE:
            case Node::KIND_OBJECT_FIELD:
                array_pop($this->inputTypeStack);
                break;
        }
    }
}


1		<?php
2
3		namespace Fubhy\GraphQL\Utility;
4
5		use Fubhy\GraphQL\Language\Node;
6		use Fubhy\GraphQL\Language\Node\Field;
7		use Fubhy\GraphQL\Language\Node\ListType;
8		use Fubhy\GraphQL\Language\Node\NamedType;
9		use Fubhy\GraphQL\Language\Node\NonNullType;
10		use Fubhy\GraphQL\Schema;
11		use Fubhy\GraphQL\Type\Definition\FieldDefinition;
12		use Fubhy\GraphQL\Type\Definition\Types\InputObjectType;
13		use Fubhy\GraphQL\Type\Definition\Types\InterfaceType;
14		use Fubhy\GraphQL\Type\Definition\Types\ListModifier;
15		use Fubhy\GraphQL\Type\Definition\Types\NonNullModifier;
16		use Fubhy\GraphQL\Type\Definition\Types\ObjectType;
17		use Fubhy\GraphQL\Type\Definition\Types\Type;
18		use Fubhy\GraphQL\Type\Definition\Types\UnionType;
19		use Fubhy\GraphQL\Type\Introspection;
20
21		class TypeInfo
22		{
23		/**
24		* @var Schema
25		*/
26		protected $_schema;
27
28		/**
29		* @var \Fubhy\GraphQL\Type\Directives\DirectiveInterface
30		*/
31		protected $directive;
32
33		/**
34		* @var \SplStack<OutputType>
35		*/
36		protected $typeStack;
37
38		/**
39		* @var \SplStack<CompositeType>
40		*/
41		protected $parentTypeStack;
42
43		/**
44		* @var \SplStack<InputType>
45		*/
46		protected $inputTypeStack;
47
48		/**
49		* @var \SplStack<FieldDefinition>
50		*/
51		protected $fieldDefinitionStack;
52
53		/**
54		* @param Schema $schema
55		* @param $inputType
56		*
57		* @return ListModifier\|NonNullModifier\|\Fubhy\GraphQL\Type\Definition\Types\TypeInterface\|null
58		*/
59	105	public static function typeFromAST(Schema $schema, $inputType)
60		{
61	105	if ($inputType instanceof ListType) {
62	36	$innerType = self::typeFromAST($schema, $inputType->get('type'));
63	36	return $innerType ? new ListModifier($innerType) : NULL;
64		}
65
66	105	if ($inputType instanceof NonNullType) {
67	45	$innerType = self::typeFromAST($schema, $inputType->get('type'));
68	45	return $innerType ? new NonNullModifier($innerType) : NULL;
69		}
70
71	105	if (!($inputType instanceof NamedType)) {
72		throw new \LogicException('Must be a type name.');
73		}
74
75	105	return $schema->getType($inputType->get('name')->get('value'));
76		}
77
78		/**
79		* Not exactly the same as the executor's definition of getFieldDef, in this
80		* statically evaluated environment we do not always have an Object type,
81		* and need to handle Interface and Union types.
82		*
83		* @param Schema $schema
84		* @param Type $parentType
85		* @param Field $fieldAST
86		*
87		* @return FieldDefinition
88		*/
89		protected static function getFieldDefinition(Schema $schema, Type $parentType, Field $fieldAST)
90		{
91		$name = $fieldAST->get('name')->get('value');
92		$schemaMeta = Introspection::schemaMetaFieldDefinition();
93		if ($name === $schemaMeta->getName() && $schema->getQueryType() === $parentType) {
94		return $schemaMeta;
95		}
96
97		$typeMeta = Introspection::typeMetaFieldDefinition();
98		if ($name === $typeMeta->getName() && $schema->getQueryType() === $parentType) {
99		return $typeMeta;
100		}
101
102		$typeNameMeta = Introspection::typeNameMetaFieldDefinition();
103		if ($name === $typeNameMeta->getName() && ($parentType instanceof ObjectType \|\| $parentType instanceof InterfaceType \|\| $parentType instanceof UnionType)) {
104		return $typeNameMeta;
105		}
106
107		if ($parentType instanceof ObjectType \|\| $parentType instanceof InterfaceType) {
108		$fields = $parentType->getFields();
109		return isset($fields[$name]) ? $fields[$name] : NULL;
110		}
111
112		return NULL;
113		}
114
115		/**
116		* Constructor.
117		*
118		* @param Schema $schema
119		*/
120		public function __construct(Schema $schema)
121		{
122		$this->_schema = $schema;
123		$this->typeStack = [];
124		$this->parentTypeStack = [];
125		$this->inputTypeStack = [];
126		$this->fieldDefinitionStack = [];
127		}
128
129		/**
130		* @return Type
131		*/
132		protected function getType()
133		{
134		if (!empty($this->typeStack)) {
135		return $this->typeStack[count($this->typeStack) - 1];
136		}
137
138		return NULL;
139		}
140
141		/**
142		* @return Type
143		*/
144		protected function getParentType()
145		{
146		if (!empty($this->parentTypeStack)) {
147		return $this->parentTypeStack[count($this->parentTypeStack) - 1];
148		}
149		return NULL;
150		}
151
152		/**
153		* @return mixed\|null
154		*/
155		protected function getInputType()
156		{
157		if (!empty($this->inputTypeStack)) {
158		return $this->inputTypeStack[count($this->inputTypeStack) - 1];
159		}
160		return NULL;
161		}
162
163		/**
164		* @param Node $node
165		*/
166		protected function enter(Node $node)
167		{
168		$schema = $this->_schema;
169
170		switch ($node::KIND) {
171		case Node::KIND_SELECTION_SET:
172		$rawType = $this->getType();
173		$rawType = isset($rawType) ? $rawType->getUnmodifiedType() : NULL;
174		$compositeType = NULL;
175		if (isset($rawType) && $rawType->isCompositeType()) {
176		$compositeType = $rawType;
177		}
178		array_push($this->parentTypeStack, $compositeType);
179		break;
180
181		case Node::KIND_DIRECTIVE:
182		$this->directive = $schema->getDirective($node->get('name')->get('value'));
183		break;
184
185		case Node::KIND_FIELD:
186		$parentType = $this->getParentType();
187		$fieldDefinition = NULL;
188		if (isset($parentType)) {
189		$fieldDefinition = self::getFieldDefinition($schema, $parentType, $node);
		0 ignored issues – show Compatibility introduced 2016-02-08 14:55 UTC by Report Bug Copy Issue Report `$node` of type `object<Fubhy\GraphQL\Language\Node>` is not a sub-type of `object<Fubhy\GraphQL\Language\Node\Field>`. It seems like you assume a child class of the class `Fubhy\GraphQL\Language\Node` to be always present. This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass. Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type. Loading history...
190		}
191		array_push($this->fieldDefinitionStack, $fieldDefinition);
192		array_push($this->typeStack, $fieldDefinition ? $fieldDefinition->getType() : NULL);
193		break;
194
195		case Node::KIND_OPERATION_DEFINITION:
196		$type = NULL;
197		if ($node->get('operation') === 'query') {
198		$type = $schema->getQueryType();
199		} else if ($node->get('operation') === 'mutation') {
200		$type = $schema->getMutationType();
201		}
202		array_push($this->typeStack, $type);
203		break;
204
205		case Node::KIND_INLINE_FRAGMENT:
206		case Node::KIND_FRAGMENT_DEFINITION:
207		$type = $schema->getType($node->get('typeCondition')->get('value'));
208		array_push($this->typeStack, $type);
209		break;
210
211		case Node::KIND_VARIABLE_DEFINITION:
212		array_push($this->inputTypeStack, self::typeFromAST($schema, $node->get('type')));
213		break;
214
215		case Node::KIND_ARGUMENT:
216		if (!empty($this->fieldDefinitionStack)) {
217		$field = $this->fieldDefinitionStack[count($this->fieldDefinitionStack) - 1];
218		}
219		else {
220		$field = NULL;
221		}
222
223		$argType = NULL;
224		if ($field) {
225		$argDefinition = NULL;
226		foreach ($field->getArguments() as $arg) {
227		if ($arg->getName() === $node->get('name')->get('value')) {
228		$argDefinition = $arg;
229		}
230		break;
231		}
232
233		if ($argDefinition) {
234		$argType = $argDefinition->getType();
235		}
236		}
237		array_push($this->inputTypeStack, $argType);
238		break;
239
240		case Node::KIND_ARRAY_VALUE:
241		$arrayType = $this->getInputType();
242		$arrayType = isset($arrayType) ? $arrayType->getNullableType() : NULL;
243		array_push(
244		$this->inputTypeStack,
245		$arrayType instanceof ListModifier ? $arrayType->getWrappedType() : NULL
246		);
247		break;
248
249		case Node::KIND_OBJECT_FIELD:
250		$objectType = $this->getInputType();
251		$objectType = isset($objectType) ? $objectType->getUnmodifiedType() : NULL;
252		$fieldType = NULL;
253		if ($objectType instanceof InputObjectType) {
254		$tmp = $objectType->getFields();
255		$inputField = isset($tmp[$node->get('name')->get('value')]) ? $tmp[$node->get('name')->get('value')] : NULL;
256		$fieldType = $inputField ? $inputField->getType() : NULL;
257		}
258		array_push($this->inputTypeStack, $fieldType);
259		break;
260		}
261		}
262
263		/**
264		* @param Node $node
265		*/
266		protected function leave(Node $node)
267		{
268		switch ($node::KIND) {
269		case Node::KIND_SELECTION_SET:
270		array_pop($this->parentTypeStack);
271		break;
272		case Node::KIND_FIELD:
273		array_pop($this->fieldDefinitionStack);
274		array_pop($this->typeStack);
275		break;
276		case Node::KIND_DIRECTIVE:
277		$this->directive = NULL;
278		break;
279		case Node::KIND_OPERATION_DEFINITION:
280		case Node::KIND_INLINE_FRAGMENT:
281		case Node::KIND_FRAGMENT_DEFINITION:
282		array_pop($this->typeStack);
283		break;
284		case Node::KIND_VARIABLE_DEFINITION:
285		array_pop($this->inputTypeStack);
286		break;
287		case Node::KIND_ARGUMENT:
288		array_pop($this->inputTypeStack);
289		break;
290		case Node::KIND_ARRAY_VALUE:
291		case Node::KIND_OBJECT_FIELD:
292		array_pop($this->inputTypeStack);
293		break;
294		}
295		}
296		}
297

fubhy / graphql-php

TypeInfo::getParentType() A last analyzed 2016-04-28 00:47 UTC

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TypeInfo::getParentType() A
last analyzed 2016-04-28 00:47 UTC