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[java-inspections] UseHashCodeMethodInspection: support reporting and replacing with Double.hashCode() when temp var is reused

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GitOrigin-RevId: 8b6169bd90214b30d3d83acf7ebe49bc20b4f29d
This commit is contained in:
Bas Leijdekkers
2024-01-16 17:16:51 +01:00
committed by intellij-monorepo-bot
parent a9e8828ed9
commit 45d3f80e5e
7 changed files with 130 additions and 22 deletions
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18
java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/useHashCode/afterReusedVariable1.java Normal file
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@@ -0,0 +1,18 @@
// "Replace with 'Double.hashCode()'" "true-preview"
class X {
private String s;
private double d1;
private double d2;
@Override
public int hashCode() {
int result;
long temp;
result = s != null ? s.hashCode() : 0;
result = 31 * result + Double.hashCode(d1);
temp = Double.doubleToLongBits(d2);
result = 31 * result + (int)(temp ^ (temp >>> 32));
return result;
}
}

18
java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/useHashCode/afterReusedVariable2.java Normal file
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@@ -0,0 +1,18 @@
// "Replace with 'Double.hashCode()'" "true-preview"
class X {
private String s;
private double d1;
private double d2;
@Override
public int hashCode() {
int result;
long temp;
result = s != null ? s.hashCode() : 0;
temp = Double.doubleToLongBits(d1);
result = 31 * result + (int)(temp ^ (temp >>> 32));
result = 31 * result + Double.hashCode(d2);
return result;
}
}

14
java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/useHashCode/afterSplitDeclarationAndAssignment.java Normal file
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@@ -0,0 +1,14 @@
// "Replace with 'Double.hashCode()'" "true-preview"
class X {
private String s;
private double d;
@Override
public int hashCode() {
int result;
result = s != null ? s.hashCode() : 0;
result = 31 * result + Double.hashCode(d);
return result;
}
}

19
java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/useHashCode/beforeReusedVariable1.java Normal file
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@@ -0,0 +1,19 @@
// "Replace with 'Double.hashCode()'" "true-preview"
class X {
private String s;
private double d1;
private double d2;
@Override
public int hashCode() {
int result;
long temp;
result = s != null ? s.hashCode() : 0;
temp = Double.doubleToLongBits(d1);
result = 31 * result + (int)(temp ^<caret> (temp >>> 32));
temp = Double.doubleToLongBits(d2);
result = 31 * result + (int)(temp ^ (temp >>> 32));
return result;
}
}

19
java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/useHashCode/beforeReusedVariable2.java Normal file
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@@ -0,0 +1,19 @@
// "Replace with 'Double.hashCode()'" "true-preview"
class X {
private String s;
private double d1;
private double d2;
@Override
public int hashCode() {
int result;
long temp;
result = s != null ? s.hashCode() : 0;
temp = Double.doubleToLongBits(d1);
result = 31 * result + (int)(temp ^ (temp >>> 32));
temp = Double.doubleToLongBits(d2);
result = 31 * result + (int)(temp ^ (temp >>> 32)<caret>);
return result;
}
}

16
java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/useHashCode/beforeSplitDeclarationAndAssignment.java Normal file
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@@ -0,0 +1,16 @@
// "Replace with 'Double.hashCode()'" "true-preview"
class X {
private String s;
private double d;
@Override
public int hashCode() {
int result;
long temp;
result = s != null ? s.hashCode() : 0;
temp = Double.doubleToLongBits(d);
result = 31 * result + (int)<caret>(temp ^ (temp >>> 32));
return result;
}
}