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Use feature check

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GitOrigin-RevId: adff29ad2101fcc3f2310519e96152acdc4d647f
This commit is contained in:
Tagir Valeev
2020-05-21 14:05:54 +03:00
committed by intellij-monorepo-bot
parent f6bc4c8009
commit fc3d01378e
1 changed files with 29 additions and 28 deletions
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plugins/InspectionGadgets/src/com/intellij/codeInspection/LambdaCanBeMethodReferenceInspection.java
+29 -28
View File
@@ -1,13 +1,13 @@
// Copyright 2000-2017 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
package com.intellij.codeInspection;
import com.intellij.codeInsight.daemon.impl.analysis.HighlightingFeature;
import com.intellij.openapi.diagnostic.Attachment;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Condition;
import com.intellij.openapi.util.Conditions;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.pom.java.LanguageLevel;
import com.intellij.profile.codeInspection.InspectionProjectProfileManager;
import com.intellij.psi.*;
import com.intellij.psi.codeStyle.JavaCodeStyleManager;
@@ -53,38 +53,39 @@ public class LambdaCanBeMethodReferenceInspection extends AbstractBaseJavaLocalI
@NotNull
@Override
public PsiElementVisitor buildVisitor(@NotNull final ProblemsHolder holder, boolean isOnTheFly) {
if (!HighlightingFeature.LAMBDA_EXPRESSIONS.isAvailable(holder.getFile())) {
return PsiElementVisitor.EMPTY_VISITOR;
}
return new JavaElementVisitor() {
@Override
public void visitLambdaExpression(PsiLambdaExpression expression) {
super.visitLambdaExpression(expression);
if (PsiUtil.getLanguageLevel(expression).isAtLeast(LanguageLevel.JDK_1_8)) {
final PsiElement body = expression.getBody();
final PsiType functionalInterfaceType = expression.getFunctionalInterfaceType();
if (functionalInterfaceType == null) return;
MethodReferenceCandidate methodRefCandidate = extractMethodReferenceCandidateExpression(body);
if (methodRefCandidate == null) return;
final PsiExpression candidate =
canBeMethodReferenceProblem(expression.getParameterList().getParameters(), functionalInterfaceType, null,
methodRefCandidate.myExpression);
if (candidate == null) return;
ProblemHighlightType type;
if (methodRefCandidate.mySafeQualifier && methodRefCandidate.myConformsCodeStyle) {
type = ProblemHighlightType.GENERIC_ERROR_OR_WARNING;
}
else {
if (!isOnTheFly) return;
type = ProblemHighlightType.INFORMATION;
}
PsiElement element =
type == ProblemHighlightType.INFORMATION || InspectionProjectProfileManager.isInformationLevel(getShortName(), expression)
? expression
: candidate;
holder.registerProblem(holder.getManager().createProblemDescriptor(
element,
getDisplayName(),
type != ProblemHighlightType.INFORMATION,
type, true, new ReplaceWithMethodRefFix(methodRefCandidate.mySafeQualifier ? "" : " (may change semantics)")));
final PsiElement body = expression.getBody();
final PsiType functionalInterfaceType = expression.getFunctionalInterfaceType();
if (functionalInterfaceType == null) return;
MethodReferenceCandidate methodRefCandidate = extractMethodReferenceCandidateExpression(body);
if (methodRefCandidate == null) return;
final PsiExpression candidate =
canBeMethodReferenceProblem(expression.getParameterList().getParameters(), functionalInterfaceType, null,
methodRefCandidate.myExpression);
if (candidate == null) return;
ProblemHighlightType type;
if (methodRefCandidate.mySafeQualifier && methodRefCandidate.myConformsCodeStyle) {
type = ProblemHighlightType.GENERIC_ERROR_OR_WARNING;
}
else {
if (!isOnTheFly) return;
type = ProblemHighlightType.INFORMATION;
}
PsiElement element =
type == ProblemHighlightType.INFORMATION || InspectionProjectProfileManager.isInformationLevel(getShortName(), expression)
? expression
: candidate;
holder.registerProblem(holder.getManager().createProblemDescriptor(
element,
getDisplayName(),
type != ProblemHighlightType.INFORMATION,
type, true, new ReplaceWithMethodRefFix(methodRefCandidate.mySafeQualifier ? "" : " (may change semantics)")));
}
};
}