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Refactoring: made code in 'processDeclaredBoundConstraints' more kotlin

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This commit is contained in:
Svetlana Isakova
2014-12-02 15:05:49 +03:00
parent 1fb713342b
commit b098220d03
1 changed files with 15 additions and 17 deletions
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core/descriptors/src/org/jetbrains/jet/lang/resolve/calls/inference/ConstraintSystemImpl.kt
+15 -17
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@@ -45,6 +45,7 @@ import org.jetbrains.jet.lang.types.CustomTypeVariable
import org.jetbrains.jet.lang.types.getCustomTypeVariable
import org.jetbrains.jet.lang.types.isFlexible
import org.jetbrains.jet.lang.types.checker.JetTypeChecker
import org.jetbrains.jet.lang.resolve.calls.inference.TypeBounds.Bound
public class ConstraintSystemImpl : ConstraintSystem {
@@ -389,25 +390,22 @@ public class ConstraintSystemImpl : ConstraintSystem {
public fun processDeclaredBoundConstraints() {
for ((typeParameterDescriptor, typeBounds) in typeParameterBounds) {
fun compoundPosition(bound: Bound) = CompoundConstraintPosition(
TYPE_BOUND_POSITION.position(typeParameterDescriptor.getIndex()), bound.position)
// todo order matters here
// it's important to create a separate variable here,
// because the following code may add new elements to typeBounds.bounds collection
val bounds = ArrayList(typeBounds.bounds)
for (declaredUpperBound in typeParameterDescriptor.getUpperBounds()) {
//todo order matters here
val bounds = ArrayList(typeBounds.bounds)
for (bound in bounds) {
if (bound.kind == LOWER_BOUND || bound.kind == EXACT_BOUND) {
val position = CompoundConstraintPosition(
TYPE_BOUND_POSITION.position(typeParameterDescriptor.getIndex()), bound.position)
addSubtypeConstraint(bound.constrainingType, declaredUpperBound, position)
}
bounds.filter { it.kind != UPPER_BOUND }.forEach {
lowerOrExactBound ->
addSubtypeConstraint(lowerOrExactBound.constrainingType, declaredUpperBound, compoundPosition(lowerOrExactBound))
}
if (isMyTypeVariable(declaredUpperBound)) {
val typeBoundsForUpperBound = getTypeBounds(declaredUpperBound)
for (bound in typeBoundsForUpperBound.bounds) {
if (bound.kind == UPPER_BOUND || bound.kind == EXACT_BOUND) {
val position = CompoundConstraintPosition(
TYPE_BOUND_POSITION.position(typeParameterDescriptor.getIndex()), bound.position)
typeBounds.addBound(UPPER_BOUND, bound.constrainingType, position)
}
}
if (!isMyTypeVariable(declaredUpperBound)) continue
getTypeBounds(declaredUpperBound).bounds.filter { it.kind != LOWER_BOUND }.forEach {
upperOrExactBound ->
typeBounds.addBound(UPPER_BOUND, upperOrExactBound.constrainingType, compoundPosition(upperOrExactBound))
}
}
}