1 files changed, 284 insertions, 0 deletions
diff --git a/javaparser-symbol-solver-testing/src/test/test_sourcecode/javaparser_new_src/javaparser-core/com/github/javaparser/ast/nodeTypes/NodeWithMembers.java b/javaparser-symbol-solver-testing/src/test/test_sourcecode/javaparser_new_src/javaparser-core/com/github/javaparser/ast/nodeTypes/NodeWithMembers.java
new file mode 100644
index 000000000..827e5edee
--- /dev/null
+++ b/javaparser-symbol-solver-testing/src/test/test_sourcecode/javaparser_new_src/javaparser-core/com/github/javaparser/ast/nodeTypes/NodeWithMembers.java
@@ -0,0 +1,284 @@
+package com.github.javaparser.ast.nodeTypes;
+
+import static com.github.javaparser.ast.type.VoidType.VOID_TYPE;
+import static java.util.Collections.unmodifiableList;
+import static java.util.stream.Collectors.toCollection;
+import static java.util.stream.Collectors.toList;
+import static java.util.stream.Collectors.toSet;
+
+import java.util.Arrays;
+import java.util.EnumSet;
+import java.util.List;
+import java.util.stream.Stream;
+
+import com.github.javaparser.ast.Modifier;
+import com.github.javaparser.ast.Node;
+import com.github.javaparser.ast.body.BodyDeclaration;
+import com.github.javaparser.ast.body.ConstructorDeclaration;
+import com.github.javaparser.ast.body.FieldDeclaration;
+import com.github.javaparser.ast.body.InitializerDeclaration;
+import com.github.javaparser.ast.body.MethodDeclaration;
+import com.github.javaparser.ast.body.TypeDeclaration;
+import com.github.javaparser.ast.body.VariableDeclarator;
+import com.github.javaparser.ast.body.VariableDeclaratorId;
+import com.github.javaparser.ast.stmt.BlockStmt;
+import com.github.javaparser.ast.type.ClassOrInterfaceType;
+import com.github.javaparser.ast.type.Type;
+
+/**
+ * A node having members.
+ *
+ * The main reason for this interface is to permit users to manipulate homogeneously all nodes with a getMembers
+ * method.
+ *
+ */
+public interface NodeWithMembers<T> {
+    List<BodyDeclaration<?>> getMembers();
+
+    T setMembers(List<BodyDeclaration<?>> members);
+
+    /**
+     * Add a field to this and automatically add the import of the type if needed
+     *
+     * @param typeClass the type of the field
+     * @param name the name of the field
+     * @param modifiers the modifiers like {@link Modifier#PUBLIC}
+     * @return the {@link FieldDeclaration} created
+     */
+    default FieldDeclaration addField(Class<?> typeClass, String name, Modifier... modifiers) {
+        ((Node) this).tryAddImportToParentCompilationUnit(typeClass);
+        return addField(typeClass.getSimpleName(), name, modifiers);
+    }
+
+    /**
+     * Add a field to this
+     *
+     * @param type the type of the field
+     * @param name the name of the field
+     * @param modifiers the modifiers like {@link Modifier#PUBLIC}
+     * @return the {@link FieldDeclaration} created
+     */
+    default FieldDeclaration addField(String type, String name, Modifier... modifiers) {
+        return addField(new ClassOrInterfaceType(type), name, modifiers);
+    }
+
+    /**
+     * Add a field to this
+     *
+     * @param type the type of the field
+     * @param name the name of the field
+     * @param modifiers the modifiers like {@link Modifier#PUBLIC}
+     * @return the {@link FieldDeclaration} created
+     */
+    default FieldDeclaration addField(Type<?> type, String name, Modifier... modifiers) {
+        FieldDeclaration fieldDeclaration = new FieldDeclaration();
+        fieldDeclaration.setParentNode((Node) this);
+        VariableDeclarator variable = new VariableDeclarator(new VariableDeclaratorId(name));
+        fieldDeclaration.getVariables().add(variable);
+        variable.setParentNode(fieldDeclaration);
+        fieldDeclaration.setModifiers(Arrays.stream(modifiers)
+                .collect(toCollection(() -> EnumSet.noneOf(Modifier.class))));
+        variable.setType(type);
+        getMembers().add(fieldDeclaration);
+        return fieldDeclaration;
+    }
+
+    /**
+     * Add a private field to this
+     *
+     * @param typeClass the type of the field
+     * @param name the name of the field
+     * @return the {@link FieldDeclaration} created
+     */
+    default FieldDeclaration addPrivateField(Class<?> typeClass, String name) {
+        return addField(typeClass, name, Modifier.PRIVATE);
+    }
+
+    /**
+     * Add a private field to this and automatically add the import of the type if
+     * needed
+     *
+     * @param type the type of the field
+     * @param name the name of the field
+     * @return the {@link FieldDeclaration} created
+     */
+    default FieldDeclaration addPrivateField(String type, String name) {
+        return addField(type, name, Modifier.PRIVATE);
+    }
+
+    /**
+     * Add a public field to this
+     * 
+     * @param typeClass the type of the field
+     * @param name the name of the field
+     * @return the {@link FieldDeclaration} created
+     */
+    default FieldDeclaration addPublicField(Class<?> typeClass, String name) {
+        return addField(typeClass, name, Modifier.PUBLIC);
+    }
+
+    /**
+     * Add a public field to this and automatically add the import of the type if
+     * needed
+     *
+     * @param type the type of the field
+     * @param name the name of the field
+     * @return the {@link FieldDeclaration} created
+     */
+    default FieldDeclaration addPublicField(String type, String name) {
+        return addField(type, name, Modifier.PUBLIC);
+    }
+
+    /**
+     * Add a protected field to this
+     *
+     * @param typeClass the type of the field
+     * @param name the name of the field
+     * @return the {@link FieldDeclaration} created
+     */
+    default FieldDeclaration addProtectedField(Class<?> typeClass, String name) {
+        return addField(typeClass, name, Modifier.PROTECTED);
+    }
+
+    /**
+     * Add a protected field to this and automatically add the import of the type
+     * if needed
+     *
+     * @param type the type of the field
+     * @param name the name of the field
+     * @return the {@link FieldDeclaration} created
+     */
+    default FieldDeclaration addProtectedField(String type, String name) {
+        return addField(type, name, Modifier.PROTECTED);
+    }
+
+    /**
+     * Adds a methods with void return by default to this
+     *
+     * @param methodName the method name
+     * @param modifiers the modifiers like {@link Modifier#PUBLIC}
+     * @return the {@link MethodDeclaration} created
+     */
+    default MethodDeclaration addMethod(String methodName, Modifier... modifiers) {
+        MethodDeclaration methodDeclaration = new MethodDeclaration();
+        methodDeclaration.setName(methodName);
+        methodDeclaration.setType(VOID_TYPE);
+        methodDeclaration.setModifiers(Arrays.stream(modifiers)
+                .collect(toCollection(() -> EnumSet.noneOf(Modifier.class))));
+        getMembers().add(methodDeclaration);
+        methodDeclaration.setParentNode((Node) this);
+        return methodDeclaration;
+    }
+
+    /**
+     * Adds a constructor to this
+     * 
+     * @param modifiers the modifiers like {@link Modifier#PUBLIC}
+     * @return the {@link MethodDeclaration} created
+     */
+    default ConstructorDeclaration addCtor(Modifier... modifiers) {
+        ConstructorDeclaration constructorDeclaration = new ConstructorDeclaration();
+        constructorDeclaration.setModifiers(Arrays.stream(modifiers)
+                .collect(toCollection(() -> EnumSet.noneOf(Modifier.class))));
+        constructorDeclaration.setName(((TypeDeclaration<?>) this).getName());
+        getMembers().add(constructorDeclaration);
+        constructorDeclaration.setParentNode((Node) this);
+        return constructorDeclaration;
+    }
+
+    default BlockStmt addInitializer() {
+        BlockStmt block = new BlockStmt();
+        InitializerDeclaration initializerDeclaration = new InitializerDeclaration(false, block);
+        getMembers().add(initializerDeclaration);
+        initializerDeclaration.setParentNode((Node) this);
+        return block;
+    }
+
+    default BlockStmt addStaticInitializer() {
+        BlockStmt block = new BlockStmt();
+        InitializerDeclaration initializerDeclaration = new InitializerDeclaration(true, block);
+        getMembers().add(initializerDeclaration);
+        initializerDeclaration.setParentNode((Node) this);
+        return block;
+    }
+
+    /**
+     * Try to find a {@link MethodDeclaration} by its name
+     *
+     * @param name the name of the method
+     * @return the methods found (multiple in case of polymorphism)
+     */
+    default List<MethodDeclaration> getMethodsByName(String name) {
+        return getMembers().stream()
+                .filter(m -> m instanceof MethodDeclaration && ((MethodDeclaration) m).getName().equals(name))
+                .map(m -> (MethodDeclaration) m).collect(toList());
+    }
+
+    /**
+     * Find all methods in the members of this node.
+     *
+     * @return the methods found. This list is immutable.
+     */
+    default List<MethodDeclaration> getMethods() {
+        return unmodifiableList(getMembers().stream()
+                .filter(m -> m instanceof MethodDeclaration)
+                .map(m -> (MethodDeclaration) m)
+                .collect(toList()));
+    }
+
+    /**
+     * Try to find a {@link MethodDeclaration} by its parameters types
+     *
+     * @param paramTypes the types of parameters like "Map&lt;Integer,String&gt;","int" to match<br>
+     *            void foo(Map&lt;Integer,String&gt; myMap,int number)
+     * @return the methods found (multiple in case of polymorphism)
+     */
+    default List<MethodDeclaration> getMethodsByParameterTypes(String... paramTypes) {
+        return getMembers().stream()
+                .filter(m -> m instanceof MethodDeclaration
+                        && ((MethodDeclaration) m).getParameters().stream().map(p -> p.getType().toString())
+                                .collect(toSet()).equals(Stream.of(paramTypes).collect(toSet())))
+                .map(m -> (MethodDeclaration) m).collect(toList());
+    }
+
+    /**
+     * Try to find a {@link MethodDeclaration} by its parameters types
+     *
+     * @param paramTypes the types of parameters like "Map&lt;Integer,String&gt;","int" to match<br>
+     *            void foo(Map&lt;Integer,String&gt; myMap,int number)
+     * @return the methods found (multiple in case of polymorphism)
+     */
+    default List<MethodDeclaration> getMethodsByParameterTypes(Class<?>... paramTypes) {
+        return getMembers().stream()
+                .filter(m -> m instanceof MethodDeclaration
+                        && ((MethodDeclaration) m).getParameters().stream().map(p -> p.getType().toString())
+                                .collect(toSet())
+                                .equals(Stream.of(paramTypes).map(Class::getSimpleName).collect(toSet())))
+                .map(m -> (MethodDeclaration) m).collect(toList());
+    }
+
+    /**
+     * Try to find a {@link FieldDeclaration} by its name
+     *
+     * @param name the name of the field
+     * @return null if not found, the FieldDeclaration otherwise
+     */
+    default FieldDeclaration getFieldByName(String name) {
+        return (FieldDeclaration) getMembers().stream()
+                .filter(m -> m instanceof FieldDeclaration && ((FieldDeclaration) m).getVariables().stream()
+                        .anyMatch(var -> var.getId().getName().equals(name)))
+                .findFirst().orElse(null);
+    }
+
+    /**
+	 * Find all fields in the members of this node.
+     *
+	 * @return the fields found. This list is immutable.
+     */
+    default List<FieldDeclaration> getFields() {
+        return unmodifiableList(getMembers().stream()
+                .filter(m -> m instanceof FieldDeclaration )
+                .map(m -> (FieldDeclaration) m)
+                .collect(toList()));
+    }
+}