Implement TypeSpecifierContext->getReturnType() #3878
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staabm
commented
Mar 13, 2025
staabm
commented
Mar 13, 2025
| public static function createTrue(?Type $returnType = null): self | ||
| { | ||
| return self::create(self::CONTEXT_TRUE); | ||
| return self::create(self::CONTEXT_TRUE, $returnType); |
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todo: bit-field cleanup after the main-point of this PR works
About true/truthy - let’s get rid of the bit-masking, I think they will be implemented as getReturnType()->isTrue()->yes()
The other one as getReturnType()->toBoolean()->isTrue()->yes()
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staabm
commented
Mar 13, 2025
| $negatedReturnType = null; | ||
| if ($this->returnType !== null) { | ||
| $baseType = $this->returnType->generalize(GeneralizePrecision::lessSpecific()); | ||
| $negatedReturnType = TypeCombinator::remove($baseType, $this->returnType); |
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This won't work for unions of int. We will need 2 two return types in the context and toggle between them on negate()
|
had a different try with #3881 |
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for expression like
if (doFoo() > 0)we want to pass the context specific return-type information into type-specifying extensions so they can decide not just on true/truethy/false/falsy but also on "remaining return type values" (e.g. preg_match returns
0|1|false)this should help to reduce the number of hardcoded hacks within the TypeSpecifier und move over some cases into extensions (which also allows 3rd party extensions todo similar things, as they can't hard-code hack the TypeSpecifier)
ondrej quoted: