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getContainingMethodOrLambdaReturnType moved to AnalysisUastUtil (IDEA-CR-34609)

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This commit is contained in:
Nicolay Mitropolsky
2018-07-06 12:24:31 +03:00
parent 3d189cd131
commit 6c12113b5a
1 changed files with 34 additions and 0 deletions
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jvm/jvm-analysis-api/src/com/intellij/codeInspection/AnalysisUastUtil.java
+34
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@@ -118,4 +118,38 @@ public final class AnalysisUastUtil {
return false;
}
public static PsiType getContainingMethodOrLambdaReturnType(UCallExpression expression) {
UElement parent = expression.getUastParent();
while (parent != null) {
if (parent instanceof UMethod) {
return ((UMethod)parent).getReturnType();
}
if (parent instanceof ULambdaExpression) {
PsiType lambdaType = ((ULambdaExpression)parent).getBody().getExpressionType();
if (lambdaType != null) return lambdaType;
PsiType functionalInterfaceType = ((ULambdaExpression)parent).getFunctionalInterfaceType();
if (functionalInterfaceType != null) {
return LambdaUtil.getFunctionalInterfaceReturnType(functionalInterfaceType);
}
// if `functionalInterfaceType` will return proper type for Kotlin (after KT-25297 is fixed) then this part could be dropped
UElement lambdaParent = parent.getUastParent();
if (lambdaParent instanceof UCallExpression) {
PsiParameter lambdaParameter = UastUtils.getParameterForArgument(((UCallExpression)lambdaParent), ((ULambdaExpression)parent));
if (lambdaParameter == null) return null;
return LambdaUtil.getFunctionalInterfaceReturnType(lambdaParameter.getType());
}
return null;
}
if (parent instanceof UClass) {
return null;
}
parent = parent.getUastParent();
}
return null;
}
}