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"field" reassignment: fix and test

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This commit is contained in:
Mikhail Glukhikh
2015-09-16 12:05:44 +03:00
parent 9f640b00d9
commit 9939f96c09
4 changed files with 20 additions and 2 deletions
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compiler/frontend/src/org/jetbrains/kotlin/cfg/JetFlowInformationProvider.java
+6 -2
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@@ -47,6 +47,7 @@ import org.jetbrains.kotlin.cfg.pseudocodeTraverser.Edges;
import org.jetbrains.kotlin.cfg.pseudocodeTraverser.PseudocodeTraverserPackage;
import org.jetbrains.kotlin.cfg.pseudocodeTraverser.TraversalOrder;
import org.jetbrains.kotlin.descriptors.*;
import org.jetbrains.kotlin.descriptors.impl.SyntheticFieldDescriptor;
import org.jetbrains.kotlin.diagnostics.Diagnostic;
import org.jetbrains.kotlin.diagnostics.DiagnosticFactory;
import org.jetbrains.kotlin.diagnostics.Errors;
@@ -400,8 +401,11 @@ public class JetFlowInformationProvider {
@NotNull Collection<VariableDescriptor> varWithValReassignErrorGenerated
) {
VariableDescriptor variableDescriptor = ctxt.variableDescriptor;
if (JetPsiUtil.isBackingFieldReference(expression) && variableDescriptor instanceof PropertyDescriptor) {
PropertyDescriptor propertyDescriptor = (PropertyDescriptor) variableDescriptor;
if (variableDescriptor instanceof SyntheticFieldDescriptor
|| (JetPsiUtil.isBackingFieldReference(expression) && variableDescriptor instanceof PropertyDescriptor)) {
PropertyDescriptor propertyDescriptor = variableDescriptor instanceof SyntheticFieldDescriptor
? ((SyntheticFieldDescriptor) variableDescriptor).getPropertyDescriptor()
: (PropertyDescriptor) variableDescriptor;
JetPropertyAccessor accessor = PsiTreeUtil.getParentOfType(expression, JetPropertyAccessor.class);
if (accessor != null) {
DeclarationDescriptor accessorDescriptor = trace.get(BindingContext.DECLARATION_TO_DESCRIPTOR, accessor);