TypeCombinator: Prevent unnecessary work #4773
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staabm
commented
Jan 17, 2026
| if ( | ||
| $a instanceof ConstantStringType | ||
| ) { | ||
| $description = $b->describe(VerbosityLevel::value()); |
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describe $b only when $a == ''.
before we described $b no matter which constant-value $a had
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micro optimization in a very hot path