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method refs: treat boxed types as with anonymous

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This commit is contained in:
anna
2013-02-26 15:02:33 +01:00
parent 0a2f5908e4
commit 96abac54cc
2 changed files with 2 additions and 17 deletions
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15
java/java-psi-api/src/com/intellij/psi/util/TypeConversionUtil.java
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@@ -815,21 +815,6 @@ public class TypeConversionUtil {
}
public static boolean boxingConversionApplicable(final PsiType left, final PsiType right) {
if (right instanceof PsiMethodReferenceType) {
final JavaResolveResult result = ((PsiMethodReferenceType)right).getExpression().advancedResolve(false);
PsiElement element = result.getElement();
final PsiClassType.ClassResolveResult functionalInterfaceResult = PsiUtil.resolveGenericsClassInType(left);
final PsiMethod interfaceMethod = LambdaUtil.getFunctionalInterfaceMethod(functionalInterfaceResult);
if (element instanceof PsiMethod && interfaceMethod != null) {
final PsiType[] parameterTypes = ((PsiMethod)element).getSignature(result.getSubstitutor()).getParameterTypes();
final PsiType[] argTypes = interfaceMethod.getSignature(functionalInterfaceResult.getSubstitutor()).getParameterTypes();
if (parameterTypes.length != argTypes.length) return false;
for (int i = 0; i < parameterTypes.length; i++) {
if (boxingConversionApplicable(parameterTypes[i], argTypes[i])) return true;
}
}
}
if (left instanceof PsiPrimitiveType && !PsiType.NULL.equals(left)) {
return right instanceof PsiClassType && isAssignable(left, right);
}

4
java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/methodRef/MethodRefMisc1.java
View File

@@ -38,7 +38,7 @@ class MyTest1 {
}
public static void main(String[] args) {
call(1, MyTest1::m);
call<error descr="Ambiguous method call: both 'MyTest1.call(int, I1)' and 'MyTest1.call(int, I2)' match">(1, MyTest1::m)</error>;
}
}
@@ -54,7 +54,7 @@ class MyTest2 {
static void call(Integer i, I s) { }
static void test() {
call<error descr="Ambiguous method call: both 'MyTest2.call(int, I)' and 'MyTest2.call(Integer, I)' match">(1, MyTest2::m)</error>; //ambiguous
call(1, MyTest2::m); //call(int i, I s)
}
}