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KT-6320 AssertionError in ConstraintSystem(The constraint shouldn't contain different type variables on both sides: Y <: X)

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#KT-6320 Fixed
This commit is contained in:
Svetlana Isakova
2014-12-02 15:07:17 +03:00
parent b098220d03
commit f9d4a68c6e
4 changed files with 60 additions and 7 deletions
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core/descriptors/src/org/jetbrains/jet/lang/resolve/calls/inference/ConstraintSystemImpl.kt
+3 -7
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@@ -304,13 +304,9 @@ public class ConstraintSystemImpl : ConstraintSystem {
}
fun simplifyConstraint(subType: JetType, superType: JetType) {
// can be equal for the recursive invocations:
// fun <T> foo(i: Int) : T { ... return foo(i); } => T <: T
if (isMyTypeVariable(subType) && isMyTypeVariable(superType) && JetTypeChecker.DEFAULT.equalTypes(subType, superType)) return
assert(!isMyTypeVariable(subType) || !isMyTypeVariable(superType)) {
"The constraint shouldn't contain different type variables on both sides: " + subType + " <: " + superType
}
// can be equal for the recursive invocations: fun <T> foo(i: Int) : T { ... return foo(i); } => T <: T
// the right processing of constraints connecting type variables is not supported yet
if (isMyTypeVariable(subType) && isMyTypeVariable(superType)) return
if (isMyTypeVariable(subType)) {
val boundKind = if (constraintKind == SUB_TYPE) UPPER_BOUND else EXACT_BOUND