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Bleeding edge - improve comparison against BcMath\Number 
1 parent c5d7128 commit df961a7

9 files changed

+218
-61
lines changed

‎conf/bleedingEdge.neon

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -8,3 +8,4 @@ parameters:
88
reportPreciseLineForUnusedFunctionParameter: true
99
internalTag: true
1010
newStaticInAbstractClassStaticMethod: true
11+
checkExtensionsForComparisonOperators: true

‎conf/config.neon

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -31,6 +31,7 @@ parameters:
3131
reportPreciseLineForUnusedFunctionParameter: false
3232
internalTag: false
3333
newStaticInAbstractClassStaticMethod: false
34+
checkExtensionsForComparisonOperators: false
3435
fileExtensions:
3536
- php
3637
checkAdvancedIsset: false

‎conf/parametersSchema.neon

Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -35,6 +35,7 @@ parametersSchema:
3535
reportPreciseLineForUnusedFunctionParameter: bool()
3636
internalTag: bool()
3737
newStaticInAbstractClassStaticMethod: bool()
38+
checkExtensionsForComparisonOperators: bool()
3839
])
3940
fileExtensions: listOf(string())
4041
checkAdvancedIsset: bool()

‎src/Reflection/InitializerExprTypeResolver.php

Lines changed: 6 additions & 22 deletions
Original file line numberDiff line numberDiff line change
@@ -885,7 +885,8 @@ public function getModType(Expr $left, Expr $right, callable $getTypeCallback):
885885
return $this->getNeverType($leftType, $rightType);
886886
}
887887

888-
$extensionSpecified = $this->callOperatorTypeSpecifyingExtensions(new BinaryOp\Mod($left, $right), $leftType, $rightType);
888+
$extensionSpecified = $this->operatorTypeSpecifyingExtensionRegistryProvider->getRegistry()
889+
->callOperatorTypeSpecifyingExtensions(new BinaryOp\Mod($left, $right), $leftType, $rightType);
889890
if ($extensionSpecified !== null) {
890891
return $extensionSpecified;
891892
}
@@ -1270,7 +1271,8 @@ public function getPowType(Expr $left, Expr $right, callable $getTypeCallback):
12701271
$leftType = $getTypeCallback($left);
12711272
$rightType = $getTypeCallback($right);
12721273

1273-
$extensionSpecified = $this->callOperatorTypeSpecifyingExtensions(new BinaryOp\Pow($left, $right), $leftType, $rightType);
1274+
$extensionSpecified = $this->operatorTypeSpecifyingExtensionRegistryProvider->getRegistry()
1275+
->callOperatorTypeSpecifyingExtensions(new BinaryOp\Pow($left, $right), $leftType, $rightType);
12741276
if ($extensionSpecified !== null) {
12751277
return $extensionSpecified;
12761278
}
@@ -1554,25 +1556,6 @@ private function resolveConstantArrayTypeComparison(ConstantArrayType $leftType,
15541556
return new TypeResult($resultType->toBoolean(), []);
15551557
}
15561558

1557-
private function callOperatorTypeSpecifyingExtensions(Expr\BinaryOp $expr, Type $leftType, Type $rightType): ?Type
1558-
{
1559-
$operatorSigil = $expr->getOperatorSigil();
1560-
$operatorTypeSpecifyingExtensions = $this->operatorTypeSpecifyingExtensionRegistryProvider->getRegistry()->getOperatorTypeSpecifyingExtensions($operatorSigil, $leftType, $rightType);
1561-
1562-
/** @var Type[] $extensionTypes */
1563-
$extensionTypes = [];
1564-
1565-
foreach ($operatorTypeSpecifyingExtensions as $extension) {
1566-
$extensionTypes[] = $extension->specifyType($operatorSigil, $leftType, $rightType);
1567-
}
1568-
1569-
if (count($extensionTypes) > 0) {
1570-
return TypeCombinator::union(...$extensionTypes);
1571-
}
1572-
1573-
return null;
1574-
}
1575-
15761559
/**
15771560
* @param BinaryOp\Plus|BinaryOp\Minus|BinaryOp\Mul|BinaryOp\Div|BinaryOp\ShiftLeft|BinaryOp\ShiftRight $expr
15781561
*/
@@ -1617,7 +1600,8 @@ private function resolveCommonMath(Expr\BinaryOp $expr, Type $leftType, Type $ri
16171600
}
16181601
}
16191602

1620-
$specifiedTypes = $this->callOperatorTypeSpecifyingExtensions($expr, $leftType, $rightType);
1603+
$specifiedTypes = $this->operatorTypeSpecifyingExtensionRegistryProvider->getRegistry()
1604+
->callOperatorTypeSpecifyingExtensions($expr, $leftType, $rightType);
16211605
if ($specifiedTypes !== null) {
16221606
return $specifiedTypes;
16231607
}

‎src/Rules/Operators/InvalidComparisonOperationRule.php

Lines changed: 68 additions & 38 deletions
Original file line numberDiff line numberDiff line change
@@ -4,7 +4,10 @@
44

55
use PhpParser\Node;
66
use PHPStan\Analyser\Scope;
7+
use PHPStan\DependencyInjection\AutowiredParameter;
78
use PHPStan\DependencyInjection\RegisteredRule;
9+
use PHPStan\DependencyInjection\Type\OperatorTypeSpecifyingExtensionRegistryProvider;
10+
use PHPStan\Rules\IdentifierRuleError;
811
use PHPStan\Rules\Rule;
912
use PHPStan\Rules\RuleErrorBuilder;
1013
use PHPStan\Rules\RuleLevelHelper;
@@ -28,7 +31,12 @@
2831
final class InvalidComparisonOperationRule implements Rule
2932
{
3033

31-
public function __construct(private RuleLevelHelper $ruleLevelHelper)
34+
public function __construct(
35+
private RuleLevelHelper $ruleLevelHelper,
36+
private OperatorTypeSpecifyingExtensionRegistryProvider $operatorTypeSpecifyingExtensionRegistryProvider,
37+
#[AutowiredParameter(ref: '%featureToggles.checkExtensionsForComparisonOperators%')]
38+
private bool $checkExtensionsForComparisonOperators,
39+
)
3240
{
3341
}
3442

@@ -55,6 +63,22 @@ public function processNode(Node $node, Scope $scope): array
5563
return [];
5664
}
5765

66+
$result = $this->operatorTypeSpecifyingExtensionRegistryProvider->getRegistry()->callOperatorTypeSpecifyingExtensions(
67+
$node,
68+
$scope->getType($node->left),
69+
$scope->getType($node->right),
70+
);
71+
72+
if ($result !== null) {
73+
if (! $result instanceof ErrorType) {
74+
return [];
75+
}
76+
77+
if ($this->checkExtensionsForComparisonOperators) {
78+
return $this->createError($node, $scope);
79+
}
80+
}
81+
5882
if (
5983
($this->isNumberType($scope, $node->left) && (
6084
$this->isPossiblyNullableObjectType($scope, $node->right) || $this->isPossiblyNullableArrayType($scope, $node->right)
@@ -63,43 +87,7 @@ public function processNode(Node $node, Scope $scope): array
6387
$this->isPossiblyNullableObjectType($scope, $node->left) || $this->isPossiblyNullableArrayType($scope, $node->left)
6488
))
6589
) {
66-
switch (get_class($node)) {
67-
case Node\Expr\BinaryOp\Equal::class:
68-
$nodeType = 'equal';
69-
break;
70-
case Node\Expr\BinaryOp\NotEqual::class:
71-
$nodeType = 'notEqual';
72-
break;
73-
case Node\Expr\BinaryOp\Greater::class:
74-
$nodeType = 'greater';
75-
break;
76-
case Node\Expr\BinaryOp\GreaterOrEqual::class:
77-
$nodeType = 'greaterOrEqual';
78-
break;
79-
case Node\Expr\BinaryOp\Smaller::class:
80-
$nodeType = 'smaller';
81-
break;
82-
case Node\Expr\BinaryOp\SmallerOrEqual::class:
83-
$nodeType = 'smallerOrEqual';
84-
break;
85-
case Node\Expr\BinaryOp\Spaceship::class:
86-
$nodeType = 'spaceship';
87-
break;
88-
default:
89-
throw new ShouldNotHappenException();
90-
}
91-
92-
return [
93-
RuleErrorBuilder::message(sprintf(
94-
'Comparison operation "%s" between %s and %s results in an error.',
95-
$node->getOperatorSigil(),
96-
$scope->getType($node->left)->describe(VerbosityLevel::value()),
97-
$scope->getType($node->right)->describe(VerbosityLevel::value()),
98-
))
99-
->line($node->left->getStartLine())
100-
->identifier(sprintf('%s.invalid', $nodeType))
101-
->build(),
102-
];
90+
return $this->createError($node, $scope);
10391
}
10492

10593
return [];
@@ -166,4 +154,46 @@ private function isPossiblyNullableArrayType(Scope $scope, Node\Expr $expr): boo
166154
return !($type instanceof ErrorType) && $type->isArray()->yes();
167155
}
168156

157+
/** @return list<IdentifierRuleError> */
158+
private function createError(Node\Expr\BinaryOp $node, Scope $scope): array
159+
{
160+
switch (get_class($node)) {
161+
case Node\Expr\BinaryOp\Equal::class:
162+
$nodeType = 'equal';
163+
break;
164+
case Node\Expr\BinaryOp\NotEqual::class:
165+
$nodeType = 'notEqual';
166+
break;
167+
case Node\Expr\BinaryOp\Greater::class:
168+
$nodeType = 'greater';
169+
break;
170+
case Node\Expr\BinaryOp\GreaterOrEqual::class:
171+
$nodeType = 'greaterOrEqual';
172+
break;
173+
case Node\Expr\BinaryOp\Smaller::class:
174+
$nodeType = 'smaller';
175+
break;
176+
case Node\Expr\BinaryOp\SmallerOrEqual::class:
177+
$nodeType = 'smallerOrEqual';
178+
break;
179+
case Node\Expr\BinaryOp\Spaceship::class:
180+
$nodeType = 'spaceship';
181+
break;
182+
default:
183+
throw new ShouldNotHappenException();
184+
}
185+
186+
return [
187+
RuleErrorBuilder::message(sprintf(
188+
'Comparison operation "%s" between %s and %s results in an error.',
189+
$node->getOperatorSigil(),
190+
$scope->getType($node->left)->describe(VerbosityLevel::value()),
191+
$scope->getType($node->right)->describe(VerbosityLevel::value()),
192+
))
193+
->line($node->left->getStartLine())
194+
->identifier(sprintf('%s.invalid', $nodeType))
195+
->build(),
196+
];
197+
}
198+
169199
}

‎src/Type/OperatorTypeSpecifyingExtensionRegistry.php

Lines changed: 21 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -2,8 +2,10 @@
22

33
namespace PHPStan\Type;
44

5+
use PhpParser\Node\Expr;
56
use function array_filter;
67
use function array_values;
8+
use function count;
79

810
final class OperatorTypeSpecifyingExtensionRegistry
911
{
@@ -25,4 +27,23 @@ public function getOperatorTypeSpecifyingExtensions(string $operator, Type $left
2527
return array_values(array_filter($this->extensions, static fn (OperatorTypeSpecifyingExtension $extension): bool => $extension->isOperatorSupported($operator, $leftType, $rightType)));
2628
}
2729

30+
public function callOperatorTypeSpecifyingExtensions(Expr\BinaryOp $expr, Type $leftType, Type $rightType): ?Type
31+
{
32+
$operatorSigil = $expr->getOperatorSigil();
33+
$operatorTypeSpecifyingExtensions = $this->getOperatorTypeSpecifyingExtensions($operatorSigil, $leftType, $rightType);
34+
35+
/** @var Type[] $extensionTypes */
36+
$extensionTypes = [];
37+
38+
foreach ($operatorTypeSpecifyingExtensions as $extension) {
39+
$extensionTypes[] = $extension->specifyType($operatorSigil, $leftType, $rightType);
40+
}
41+
42+
if (count($extensionTypes) > 0) {
43+
return TypeCombinator::union(...$extensionTypes);
44+
}
45+
46+
return null;
47+
}
48+
2849
}

‎src/Type/Php/BcMathNumberOperatorTypeSpecifyingExtension.php

Lines changed: 15 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -4,7 +4,9 @@
44

55
use PHPStan\DependencyInjection\AutowiredService;
66
use PHPStan\Php\PhpVersion;
7+
use PHPStan\Type\BooleanType;
78
use PHPStan\Type\ErrorType;
9+
use PHPStan\Type\IntegerRangeType;
810
use PHPStan\Type\NeverType;
911
use PHPStan\Type\ObjectType;
1012
use PHPStan\Type\OperatorTypeSpecifyingExtension;
@@ -27,7 +29,7 @@ public function isOperatorSupported(string $operatorSigil, Type $leftSide, Type
2729

2830
$bcMathNumberType = new ObjectType('BcMath\Number');
2931

30-
return in_array($operatorSigil, ['-', '+', '*', '/', '**', '%'], true)
32+
return in_array($operatorSigil, ['-', '+', '*', '/', '**', '%', '<', '<=', '>', '>=', '==', '!=', '<=>'], true)
3133
&& (
3234
$bcMathNumberType->isSuperTypeOf($leftSide)->yes()
3335
|| $bcMathNumberType->isSuperTypeOf($rightSide)->yes()
@@ -41,6 +43,18 @@ public function specifyType(string $operatorSigil, Type $leftSide, Type $rightSi
4143
? $rightSide
4244
: $leftSide;
4345

46+
if ($otherSide->isFloat()->yes()) {
47+
return new ErrorType();
48+
}
49+
50+
if (in_array($operatorSigil, ['<', '<=', '>', '>=', '==', '!='], true)) {
51+
return new BooleanType();
52+
}
53+
54+
if ($operatorSigil === '<=>') {
55+
return IntegerRangeType::fromInterval(-1, 1);
56+
}
57+
4458
if (
4559
$otherSide->isInteger()->yes()
4660
|| $otherSide->isNumericString()->yes()

‎tests/PHPStan/Rules/Operators/InvalidComparisonOperationRuleTest.php

Lines changed: 18 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -2,6 +2,7 @@
22

33
namespace PHPStan\Rules\Operators;
44

5+
use PHPStan\DependencyInjection\Type\OperatorTypeSpecifyingExtensionRegistryProvider;
56
use PHPStan\Rules\Rule;
67
use PHPStan\Rules\RuleLevelHelper;
78
use PHPStan\Testing\RuleTestCase;
@@ -17,6 +18,8 @@ protected function getRule(): Rule
1718
{
1819
return new InvalidComparisonOperationRule(
1920
new RuleLevelHelper(self::createReflectionProvider(), true, false, true, false, false, false, true),
21+
$this->getContainer()->getByType(OperatorTypeSpecifyingExtensionRegistryProvider::class),
22+
true,
2023
);
2124
}
2225

@@ -170,4 +173,19 @@ public function testBug11119(): void
170173
$this->analyse([__DIR__ . '/data/bug-11119.php'], []);
171174
}
172175

176+
#[RequiresPhp('>= 8.4')]
177+
public function testBug13001(): void
178+
{
179+
$this->analyse([__DIR__ . '/data/bug-13001.php'], [
180+
[
181+
'Comparison operation ">" between BcMath\\Number and 0.2 results in an error.',
182+
10,
183+
],
184+
[
185+
'Comparison operation "<=>" between 0.2 and BcMath\\Number results in an error.',
186+
11,
187+
],
188+
]);
189+
}
190+
173191
}

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