Fix phpstan/phpstan#8985: Expression result remembered on impure call-chains#5449

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Commits on Apr 23, 2026

Fix phpstan/phpstan#8985: Expression result remembered on new()
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Skip storing expression types with new in chain instead of skipping at resolve time

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more readable
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Fix expressionHasNewInChain crash on Name nodes, add tests for all expression types

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Allow ClassConstFetch on new to be remembered, add tests for all expression types

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testClassConstFetchOnUnknownClass
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fix
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add failling test
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tests
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separate tests
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Allow stored expression types for new-chain expressions when set on the same AST node

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Update bug-8985.php
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Update ReturnTypeRuleTest.php
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Check for impure sub-expressions in TypeSpecifier::createForExpr

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Add tests for impure receiver chain and impure arguments

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Merge sub-expression side effect checks into existing purity conditions

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Remove expressionHasNewInChain from MutatingScope

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Extract side-effect checks into ExprSideEffectsHelper

phpstan-bot
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claude
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fix cs
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