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KT-510 this. allows initialization without backing field

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svtk
2011-11-21 14:35:08 +04:00
parent 3915d24660
commit a00ad38a1c
5 changed files with 54 additions and 6 deletions
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compiler/frontend/src/org/jetbrains/jet/lang/cfg/JetFlowInformationProvider.java
+13 -5
View File
@@ -285,11 +285,19 @@ public class JetFlowInformationProvider {
varWithValReassignErrorGenerated.add(variableDescriptor);
trace.report(Errors.VAL_REASSIGNMENT.on(expression, variableDescriptor, property == null ? new JetProperty[0] : new JetProperty[] { property }));
}
if (expression instanceof JetSimpleNameExpression && inAnonymousInitializers &&
variableDescriptor instanceof PropertyDescriptor && !enterInitializationPoints.isInitialized() && exitInitializationPoints.isInitialized()) {
JetSimpleNameExpression simpleNameExpression = (JetSimpleNameExpression) expression;
if (simpleNameExpression.getReferencedNameElementType() != JetTokens.FIELD_IDENTIFIER) {
trace.report(Errors.INITIALIZATION_USING_BACKING_FIELD.on(simpleNameExpression, variableDescriptor));
if (inAnonymousInitializers && variableDescriptor instanceof PropertyDescriptor && !enterInitializationPoints.isInitialized() &&
exitInitializationPoints.isInitialized()) {
JetExpression variable = expression;
if (expression instanceof JetDotQualifiedExpression) {
if (((JetDotQualifiedExpression) expression).getReceiverExpression() instanceof JetThisExpression) {
variable = ((JetDotQualifiedExpression) expression).getSelectorExpression();
}
}
if (variable instanceof JetSimpleNameExpression) {
JetSimpleNameExpression simpleNameExpression = (JetSimpleNameExpression) variable;
if (simpleNameExpression.getReferencedNameElementType() != JetTokens.FIELD_IDENTIFIER) {
trace.report(Errors.INITIALIZATION_USING_BACKING_FIELD.on(simpleNameExpression, expression, variableDescriptor));
}
}
}
}
compiler/testData/checkerWithErrorTypes/quick/regressions/kt510.jet
+18
View File
@@ -0,0 +1,18 @@
//KT-510 `this.` allows initialization without backing field
namespace kt510
public open class Identifier1() {
var field : Boolean
{
<!INITIALIZATION_USING_BACKING_FIELD!>field<!> = false; // error
}
}
public open class Identifier2() {
var field : Boolean
{
<!INITIALIZATION_USING_BACKING_FIELD!>this.field<!> = false;
}
}