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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,223 @@ | ||
| diff --git a/java/java.hints/src/org/netbeans/modules/java/hints/bugs/Bundle.properties b/java/java.hints/src/org/netbeans/modules/java/hints/bugs/Bundle.properties | ||
| index aa59c260fd14..eb396dcc3aca 100644 | ||
| --- a/java/java.hints/src/org/netbeans/modules/java/hints/bugs/Bundle.properties | ||
| +++ b/java/java.hints/src/org/netbeans/modules/java/hints/bugs/Bundle.properties | ||
| @@ -49,6 +49,10 @@ DESC_org.netbeans.modules.java.hints.bugs.Tiny.equalsNull=Finds invocations of t | ||
| ERR_equalsNull=Object equals "null" is never true | ||
| FIX_equalsNull=Use == instead of equals method | ||
|
|
||
| +DN_org.netbeans.modules.java.hints.bugs.Tiny.varTypeDiamondOperator= var used with diamond operator | ||
| +DESC_org.netbeans.modules.java.hints.bugs.Tiny.varTypeDiamondOperator=Finds variables initialzed using var and diamond operator | ||
| +ERR_varTypeDiamondOperator=<> would be inferred as <Object> | ||
| + | ||
| DN_org.netbeans.modules.java.hints.bugs.Tiny.resultSet=Incorrect column index in ResultSet | ||
| DESC_org.netbeans.modules.java.hints.bugs.Tiny.resultSet=Reports Iincorrect column indices passed to various methods of java.sql.ResultSet | ||
| ERR_ResultSetZero=Column index is zero, but ResultSet columns are counted from 1 | ||
| diff --git a/java/java.hints/src/org/netbeans/modules/java/hints/bugs/Tiny.java b/java/java.hints/src/org/netbeans/modules/java/hints/bugs/Tiny.java | ||
| index c3544a5a9f90..4ad1f50f2677 100644 | ||
| --- a/java/java.hints/src/org/netbeans/modules/java/hints/bugs/Tiny.java | ||
| +++ b/java/java.hints/src/org/netbeans/modules/java/hints/bugs/Tiny.java | ||
| @@ -32,9 +32,11 @@ | ||
| import com.sun.source.tree.LiteralTree; | ||
| import com.sun.source.tree.MemberSelectTree; | ||
| import com.sun.source.tree.MethodInvocationTree; | ||
| +import com.sun.source.tree.NewClassTree; | ||
| import com.sun.source.tree.SwitchTree; | ||
| import com.sun.source.tree.Tree; | ||
| import com.sun.source.tree.Tree.Kind; | ||
| +import com.sun.source.tree.VariableTree; | ||
| import com.sun.source.tree.WhileLoopTree; | ||
| import com.sun.source.util.SourcePositions; | ||
| import com.sun.source.util.TreePath; | ||
| @@ -51,6 +53,8 @@ | ||
| import javax.lang.model.element.ExecutableElement; | ||
| import javax.lang.model.element.Name; | ||
| import javax.lang.model.element.TypeElement; | ||
| +import javax.lang.model.element.TypeParameterElement; | ||
| +import javax.lang.model.element.VariableElement; | ||
| import javax.lang.model.type.DeclaredType; | ||
| import javax.lang.model.type.TypeKind; | ||
| import javax.lang.model.type.TypeMirror; | ||
| @@ -195,6 +199,42 @@ public static ErrorDescription equalsNull(HintContext ctx) { | ||
| return ErrorDescriptionFactory.forTree(ctx, ctx.getPath(), displayName, fix); | ||
| } | ||
|
|
||
| + @Hint(displayName = "#DN_org.netbeans.modules.java.hints.bugs.Tiny.varTypeDiamondOperator", description = "#DESC_org.netbeans.modules.java.hints.bugs.Tiny.varTypeDiamondOperator", category="bugs", suppressWarnings="AllowVarTypeDiamondOperator") | ||
| + @TriggerPatterns({ | ||
| + @TriggerPattern(value="$mods$ $varType $name = new $type<>($args$)", constraints=@ConstraintVariableType(variable="$type", type="java.util.Collection")), | ||
| + @TriggerPattern(value="$mods$ $varType $name = new $type<>($args$)", constraints=@ConstraintVariableType(variable="$type", type="java.util.Map")) | ||
| + }) | ||
| + public static ErrorDescription varTypeDiamondOperator(HintContext ctx) { | ||
| + TreePath path = ctx.getPath(); | ||
| + Boolean isVarUsed = ctx.getInfo().getTreeUtilities().isVarType(path); | ||
| + if(!isVarUsed){ | ||
| + return null; | ||
| + } | ||
| + | ||
| + VariableTree vt = (VariableTree) ctx.getPath().getLeaf(); | ||
| + NewClassTree nct = (NewClassTree) vt.getInitializer(); | ||
| + Element constructorCand = ctx.getInfo().getTrees().getElement(new TreePath(ctx.getPath(), nct)); | ||
| + | ||
| + if (constructorCand.getKind() != ElementKind.CONSTRUCTOR) { | ||
| + return null; | ||
| + } | ||
| + | ||
| + ExecutableElement constructor = (ExecutableElement) constructorCand; | ||
| + | ||
| + for (VariableElement param : constructor.getParameters()) { | ||
| + if (param.asType().getKind() == TypeKind.DECLARED) { | ||
| + DeclaredType dt = (DeclaredType) param.asType(); | ||
| + if (!dt.getTypeArguments().isEmpty()) { | ||
| + return null; | ||
| + } | ||
| + } | ||
| + } | ||
| + | ||
| + String displayName = NbBundle.getMessage(Tiny.class, "ERR_varTypeDiamondOperator"); | ||
| + | ||
| + return ErrorDescriptionFactory.forTree(ctx, path, displayName); | ||
| + } | ||
| + | ||
| @Hint(displayName = "#DN_org.netbeans.modules.java.hints.bugs.Tiny.resultSet", description = "#DESC_org.netbeans.modules.java.hints.bugs.Tiny.resultSet", category="bugs", suppressWarnings="UseOfIndexZeroInJDBCResultSet", options=Options.QUERY) | ||
| @TriggerPattern(value="$set.$method($columnIndex, $other$)", | ||
| constraints={ | ||
| diff --git a/java/java.hints/test/unit/src/org/netbeans/modules/java/hints/bugs/Bundle_test.properties b/java/java.hints/test/unit/src/org/netbeans/modules/java/hints/bugs/Bundle_test.properties | ||
| index 6b96fc845f38..e92c7d63fec4 100644 | ||
| --- a/java/java.hints/test/unit/src/org/netbeans/modules/java/hints/bugs/Bundle_test.properties | ||
| +++ b/java/java.hints/test/unit/src/org/netbeans/modules/java/hints/bugs/Bundle_test.properties | ||
| @@ -33,6 +33,8 @@ ERR_system_arraycopy_negative={0} is negative | ||
| ERR_equalsNull=ERR_equalsNull | ||
| FIX_equalsNull=FIX_equalsNull | ||
|
|
||
| +ERR_varTypeDiamondOperator=ERR_varTypeDiamondOperator | ||
| + | ||
| ERR_ResultSetZero=ERR_ResultSetZero | ||
| ERR_ResultSetNegative=ERR_ResultSetNegative | ||
|
|
||
| diff --git a/java/java.hints/test/unit/src/org/netbeans/modules/java/hints/bugs/TinyTest.java b/java/java.hints/test/unit/src/org/netbeans/modules/java/hints/bugs/TinyTest.java | ||
| index 824bfca951c1..4e496beda630 100644 | ||
| --- a/java/java.hints/test/unit/src/org/netbeans/modules/java/hints/bugs/TinyTest.java | ||
| +++ b/java/java.hints/test/unit/src/org/netbeans/modules/java/hints/bugs/TinyTest.java | ||
| @@ -356,6 +356,121 @@ public void testInconsistentIndentationLast() throws Exception { | ||
| } | ||
| } | ||
|
|
||
| + public void testVarUsageWithoutExplicitType() throws Exception { | ||
| + HintTest.create() | ||
| + .input("package test;\n" + | ||
| + "public class Test {\n" + | ||
| + " public void test() {\n" + | ||
| + " var v = new java.util.ArrayList<>();\n" + | ||
| + " }\n" + | ||
| + "}\n") | ||
| + .sourceLevel("11") | ||
| + .run(Tiny.class) | ||
| + .assertWarnings("3:8-3:44:verifier:ERR_varTypeDiamondOperator"); | ||
| + } | ||
| + | ||
| + public void testVarUsageWithoutExplicitType2() throws Exception { | ||
| + HintTest.create() | ||
| + .input("package test;\n" + | ||
| + "public class Test {\n" + | ||
| + " public void test() {\n" + | ||
| + " var v = new java.util.HashSet<>();\n" + | ||
| + " }\n" + | ||
| + "}\n") | ||
| + .sourceLevel("11") | ||
| + .run(Tiny.class) | ||
| + .assertWarnings("3:8-3:42:verifier:ERR_varTypeDiamondOperator"); | ||
| + } | ||
| + | ||
| + public void testVarUsageWithoutExplicitType3() throws Exception { | ||
| + HintTest.create() | ||
| + .input("package test;\n" + | ||
| + "public class Test {\n" + | ||
| + " public void test() {\n" + | ||
| + " var v = new java.util.HashMap<>();\n" + | ||
| + " }\n" + | ||
| + "}\n") | ||
| + .sourceLevel("11") | ||
| + .run(Tiny.class) | ||
| + .assertWarnings("3:8-3:42:verifier:ERR_varTypeDiamondOperator"); | ||
| + } | ||
| + | ||
| + public void testVarUsageWithExplicitType() throws Exception { | ||
| + HintTest.create() | ||
| + .input("package test;\n" + | ||
| + "public class Test {\n" + | ||
| + " public void test() {\n" + | ||
| + " var v = new java.util.ArrayList<Integer>();\n" + | ||
| + " }\n" + | ||
| + "}\n") | ||
| + .sourceLevel("11") | ||
| + .run(Tiny.class) | ||
| + .assertWarnings(); | ||
| + } | ||
| + | ||
| + public void testVarUsageWithExplicitType2() throws Exception { | ||
| + HintTest.create() | ||
| + .input("package test;\n" + | ||
| + "public class Test {\n" + | ||
| + " public void test() {\n" + | ||
| + " var v = new String[2];\n" + | ||
| + " }\n" + | ||
| + "}\n") | ||
| + .sourceLevel("11") | ||
| + .run(Tiny.class) | ||
| + .assertWarnings(); | ||
| + } | ||
| + | ||
| + public void testWithoutVarUsageWithExplicitType() throws Exception { | ||
| + HintTest.create() | ||
| + .input("package test;\n" + | ||
| + "public class Test {\n" + | ||
| + " public void test() {\n" + | ||
| + " java.util.List<Integer> v = new java.util.ArrayList<Integer>();\n" + | ||
| + " }\n" + | ||
| + "}\n") | ||
| + .run(Tiny.class) | ||
| + .assertWarnings(); | ||
| + } | ||
| + | ||
| + public void testWithoutVarUsageWithExplicitType2() throws Exception { | ||
| + HintTest.create() | ||
| + .input("package test;\n" + | ||
| + "public class Test {\n" + | ||
| + " public void test() {\n" + | ||
| + " java.util.List<Integer> v = new java.util.ArrayList<>();\n" + | ||
| + " }\n" + | ||
| + "}\n") | ||
| + .run(Tiny.class) | ||
| + .assertWarnings(); | ||
| + } | ||
| + | ||
| + public void testVarUsageSensibleTypeInferred1() throws Exception { | ||
| + HintTest.create() | ||
| + .input("package test;\n" + | ||
| + "public class Test {\n" + | ||
| + " public void test(java.util.Set<String> input) {\n" + | ||
| + " var v = new java.util.HashSet<>(input);\n" + | ||
| + " }\n" + | ||
| + "}\n") | ||
| + .sourceLevel("11") | ||
| + .run(Tiny.class) | ||
| + .assertWarnings(); | ||
| + } | ||
| + | ||
| + public void testVarUsageSensibleTypeInferred2() throws Exception { | ||
| + HintTest.create() | ||
| + .input("package test;\n" + | ||
| + "public class Test {\n" + | ||
| + " public void test(java.util.Map<String, String> input) {\n" + | ||
| + " var v = new java.util.HashMap<>(input);\n" + | ||
| + " }\n" + | ||
| + "}\n") | ||
| + .sourceLevel("11") | ||
| + .run(Tiny.class) | ||
| + .assertWarnings(); | ||
| + } | ||
| + | ||
| private static Map<String, String> alterSettings(String... settings) throws Exception { | ||
| //XXX: hack, need to initialize the HintTest's lookup before setting the | ||
| //formatting preferences | ||
|
|
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