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IDEA-163062 [Java8][Feature] Function.identity() inspection

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This commit is contained in:
Tagir Valeev
2016-12-13 16:16:18 +07:00
parent 9f032daf1f
commit 215dabf2ae
13 changed files with 331 additions and 0 deletions
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17
java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/lambda2methodCall/afterEquals.java Normal file
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// "Replace lambda expression with 'Predicate.isEqual()'" "true"
import java.util.Objects;
import java.util.Optional;
import java.util.function.Predicate;
import java.util.function.UnaryOperator;
import java.util.regex.Pattern;
public class Main {
private final Pattern pattern = Pattern.compile("[a-z]");
public <T extends CharSequence> void test() {
Object str = "def";
String xyz = Optional.of("xyz").map(x -> x).filter(Predicate.isEqual(str))
.filter(str -> pattern.matcher(str).find()).orElse("");
UnaryOperator<T> op = x -> x;
}
}

17
java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/lambda2methodCall/afterIdentity.java Normal file
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// "Replace lambda expression with 'Function.identity()'" "true"
import java.util.Objects;
import java.util.Optional;
import java.util.function.Function;
import java.util.function.UnaryOperator;
import java.util.regex.Pattern;
public class Main {
private final Pattern pattern = Pattern.compile("[a-z]");
public <T extends CharSequence> void test() {
Object str = "def";
String xyz = Optional.of("xyz").map(Function.identity()).filter(x -> Objects.equals(x, str))
.filter(str -> pattern.matcher(str).find()).orElse("");
UnaryOperator<T> op = x -> x;
}
}

16
java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/lambda2methodCall/afterPattern.java Normal file
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// "Replace lambda expression with 'Pattern.asPredicate()'" "true"
import java.util.Objects;
import java.util.Optional;
import java.util.function.UnaryOperator;
import java.util.regex.Pattern;
public class Main {
private final Pattern pattern = Pattern.compile("[a-z]");
public <T extends CharSequence> void test() {
Object str = "def";
String xyz = Optional.of("xyz").map(x -> x).filter(x -> Objects.equals(x, str))
.filter(pattern.asPredicate()).orElse("");
UnaryOperator<T> op = x -> x;
}
}

16
java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/lambda2methodCall/beforeEquals.java Normal file
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@@ -0,0 +1,16 @@
// "Replace lambda expression with 'Predicate.isEqual()'" "true"
import java.util.Objects;
import java.util.Optional;
import java.util.function.UnaryOperator;
import java.util.regex.Pattern;
public class Main {
private final Pattern pattern = Pattern.compile("[a-z]");
public <T extends CharSequence> void test() {
Object str = "def";
String xyz = Optional.of("xyz").map(x -> x).filter(x <caret>-> Objects.equals(x, str))
.filter(str -> pattern.matcher(str).find()).orElse("");
UnaryOperator<T> op = x -> x;
}
}

16
java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/lambda2methodCall/beforeIdentity.java Normal file
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@@ -0,0 +1,16 @@
// "Replace lambda expression with 'Function.identity()'" "true"
import java.util.Objects;
import java.util.Optional;
import java.util.function.UnaryOperator;
import java.util.regex.Pattern;
public class Main {
private final Pattern pattern = Pattern.compile("[a-z]");
public <T extends CharSequence> void test() {
Object str = "def";
String xyz = Optional.of("xyz").map(x <caret>-> x).filter(x -> Objects.equals(x, str))
.filter(str -> pattern.matcher(str).find()).orElse("");
UnaryOperator<T> op = x -> x;
}
}

9
java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/lambda2methodCall/beforeIdentitySerializable.java Normal file
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// "Replace lambda expression with 'Function.identity()'" "false"
import java.io.Serializable;
import java.util.function.Function;
public class Main {
public static void main(String[] args) {
Function<Object, Object> fn = (Function<Object, Object> & Serializable) x <caret>-> x;
}
}

16
java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/lambda2methodCall/beforeIdentityUnaryOperator.java Normal file
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// "Replace lambda expression with 'Function.identity()'" "false"
import java.util.Objects;
import java.util.Optional;
import java.util.function.UnaryOperator;
import java.util.regex.Pattern;
public class Main {
private final Pattern pattern = Pattern.compile("[a-z]");
public <T extends CharSequence> void test() {
Object str = "def";
String xyz = Optional.of("xyz").map(x -> x).filter(x -> Objects.equals(x, str))
.filter(str -> pattern.matcher(str).find()).orElse("");
UnaryOperator<T> op = x <caret>-> x;
}
}

16
java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/lambda2methodCall/beforePattern.java Normal file
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@@ -0,0 +1,16 @@
// "Replace lambda expression with 'Pattern.asPredicate()'" "true"
import java.util.Objects;
import java.util.Optional;
import java.util.function.UnaryOperator;
import java.util.regex.Pattern;
public class Main {
private final Pattern pattern = Pattern.compile("[a-z]");
public <T extends CharSequence> void test() {
Object str = "def";
String xyz = Optional.of("xyz").map(x -> x).filter(x -> Objects.equals(x, str))
.filter(str <caret>-> pattern.matcher(str).find()).orElse("");
UnaryOperator<T> op = x -> x;
}
}