1: <?php declare(strict_types = 1);
2:
3: namespace PHPStan\Type;
4:
5: use PHPStan\Php\PhpVersion;
6: use PHPStan\PhpDocParser\Ast\Type\IdentifierTypeNode;
7: use PHPStan\PhpDocParser\Ast\Type\TypeNode;
8: use PHPStan\TrinaryLogic;
9: use PHPStan\Type\Constant\ConstantArrayType;
10: use PHPStan\Type\Constant\ConstantBooleanType;
11: use PHPStan\Type\Constant\ConstantFloatType;
12: use PHPStan\Type\Constant\ConstantIntegerType;
13: use PHPStan\Type\Constant\ConstantStringType;
14: use PHPStan\Type\Traits\NonArrayTypeTrait;
15: use PHPStan\Type\Traits\NonCallableTypeTrait;
16: use PHPStan\Type\Traits\NonGeneralizableTypeTrait;
17: use PHPStan\Type\Traits\NonGenericTypeTrait;
18: use PHPStan\Type\Traits\NonIterableTypeTrait;
19: use PHPStan\Type\Traits\NonObjectTypeTrait;
20: use PHPStan\Type\Traits\NonOffsetAccessibleTypeTrait;
21: use PHPStan\Type\Traits\UndecidedBooleanTypeTrait;
22: use PHPStan\Type\Traits\UndecidedComparisonTypeTrait;
23:
24: /** @api */
25: class BooleanType implements Type
26: {
27:
28: use JustNullableTypeTrait;
29: use NonArrayTypeTrait;
30: use NonCallableTypeTrait;
31: use NonIterableTypeTrait;
32: use NonObjectTypeTrait;
33: use UndecidedBooleanTypeTrait;
34: use UndecidedComparisonTypeTrait;
35: use NonGenericTypeTrait;
36: use NonOffsetAccessibleTypeTrait;
37: use NonGeneralizableTypeTrait;
38:
39: /** @api */
40: public function __construct()
41: {
42: }
43:
44: public function getConstantStrings(): array
45: {
46: return [];
47: }
48:
49: public function describe(VerbosityLevel $level): string
50: {
51: return 'bool';
52: }
53:
54: public function toNumber(): Type
55: {
56: return $this->toInteger();
57: }
58:
59: public function toAbsoluteNumber(): Type
60: {
61: return $this->toNumber()->toAbsoluteNumber();
62: }
63:
64: public function toString(): Type
65: {
66: return TypeCombinator::union(
67: new ConstantStringType(''),
68: new ConstantStringType('1'),
69: );
70: }
71:
72: public function toInteger(): Type
73: {
74: return TypeCombinator::union(
75: new ConstantIntegerType(0),
76: new ConstantIntegerType(1),
77: );
78: }
79:
80: public function toFloat(): Type
81: {
82: return TypeCombinator::union(
83: new ConstantFloatType(0.0),
84: new ConstantFloatType(1.0),
85: );
86: }
87:
88: public function toArray(): Type
89: {
90: return new ConstantArrayType(
91: [new ConstantIntegerType(0)],
92: [$this],
93: [1],
94: [],
95: TrinaryLogic::createYes(),
96: );
97: }
98:
99: public function toArrayKey(): Type
100: {
101: return new UnionType([new ConstantIntegerType(0), new ConstantIntegerType(1)]);
102: }
103:
104: public function isOffsetAccessLegal(): TrinaryLogic
105: {
106: return TrinaryLogic::createYes();
107: }
108:
109: public function isNull(): TrinaryLogic
110: {
111: return TrinaryLogic::createNo();
112: }
113:
114: public function isTrue(): TrinaryLogic
115: {
116: return TrinaryLogic::createMaybe();
117: }
118:
119: public function isFalse(): TrinaryLogic
120: {
121: return TrinaryLogic::createMaybe();
122: }
123:
124: public function isBoolean(): TrinaryLogic
125: {
126: return TrinaryLogic::createYes();
127: }
128:
129: public function isScalar(): TrinaryLogic
130: {
131: return TrinaryLogic::createYes();
132: }
133:
134: public function looseCompare(Type $type, PhpVersion $phpVersion): BooleanType
135: {
136: return new BooleanType();
137: }
138:
139: public function tryRemove(Type $typeToRemove): ?Type
140: {
141: if ($typeToRemove instanceof ConstantBooleanType) {
142: return new ConstantBooleanType(!$typeToRemove->getValue());
143: }
144:
145: return null;
146: }
147:
148: public function getFiniteTypes(): array
149: {
150: return [
151: new ConstantBooleanType(true),
152: new ConstantBooleanType(false),
153: ];
154: }
155:
156: public function exponentiate(Type $exponent): Type
157: {
158: return ExponentiateHelper::exponentiate($this, $exponent);
159: }
160:
161: public function toPhpDocNode(): TypeNode
162: {
163: return new IdentifierTypeNode('bool');
164: }
165:
166: }
167: