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method refs: accept default constructors refs for SAMs with void return type

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This commit is contained in:
anna
2012-10-08 22:12:34 +02:00
parent b450cc58f9
commit f65e347410
2 changed files with 12 additions and 1 deletions
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1
java/java-psi-api/src/com/intellij/psi/LambdaUtil.java
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@@ -613,6 +613,7 @@ public class LambdaUtil {
} else if (resolve instanceof PsiClass) {
final PsiType interfaceReturnType = getFunctionalInterfaceReturnType(left);
if (interfaceReturnType != null) {
if (interfaceReturnType == PsiType.VOID) return true;
final PsiClassType classType = JavaPsiFacade.getElementFactory(methodReferenceExpression.getProject()).createType((PsiClass)resolve, result.getSubstitutor());
if (TypeConversionUtil.isAssignable(interfaceReturnType, classType, false)) {
final PsiParameter[] parameters = method.getParameterList().getParameters();

12
java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/methodRef/DefaultConstructor.java
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@@ -33,4 +33,14 @@ class DefaultConstructor {
I2<Outer.Inner, Outer> i2 = Outer.Inner::new;
<error descr="Incompatible types. Found: '<method reference>', required: 'DefaultConstructor.I2<DefaultConstructor.Outer.Inner,java.lang.String>'">I2<Outer.Inner, String> i2str = Outer.Inner::new;</error>
}
}
}
class DefaultConstructor1 {
public void bar() {
}
{
Runnable b1 = DefaultConstructor1 :: new;
}
}