Java FieldDeclaration类代码示例

import org.walkmod.javalang.ast.body.FieldDeclaration; //导入依赖的package包/类
@Override
public void visit(FieldDeclaration n, A arg) {
    List<VariableDeclarator> vds = n.getVariables();
    List<FieldSymbolData> result = new LinkedList<FieldSymbolData>();
    SymbolType thisType = symbolTable.getType("this", ReferenceType.VARIABLE);
    for (VariableDeclarator vd : vds) {
        String name = vd.getId().getName();
        SymbolType st = symbolTable.getType(name, ReferenceType.VARIABLE).clone();
        try {
            st.setField(thisType.getClazz().getDeclaredField(name));
        } catch (Exception e) {
            throw new NoSuchExpressionTypeException(
                    "Ops! We can't find the field " + name + " in " + thisType.getClazz().getName(), e);
        }
        result.add(st);
    }
    n.setFieldsSymbolData(result);
}
 

import org.walkmod.javalang.ast.body.FieldDeclaration; //导入依赖的package包/类
public void removeField(Symbol<?> symbol, SymbolTable table, FieldDeclaration fd) {

        int modifiers = fd.getModifiers();
        if (ModifierSet.isPrivate(modifiers)) {
            List<VariableDeclarator> vds = fd.getVariables();
            if (vds != null) {
                Iterator<VariableDeclarator> it = vds.iterator();
                while (it.hasNext()) {
                    VariableDeclarator vd = it.next();
                    if (vd.getId().getName().equals(symbol.getName())) {
                        Expression init = vd.getInit();
                        if (isReadOnlyExpression(init)) {
                            if (vds.size() == 1) {
                                remove(fd);
                            } else {
                                it.remove();
                            }
                        }
                    }
                }
            }
        }
    }
 

import org.walkmod.javalang.ast.body.FieldDeclaration; //导入依赖的package包/类
@Override
public void apply(FieldDeclaration remoteObject, List<FieldDeclaration> localList,
        List<FieldDeclaration> resultList) {
    List<FieldDeclaration> localFields = new LinkedList<FieldDeclaration>();
    if (localList != null) {
        for (FieldDeclaration localField : localList) {
            localFields.addAll(split(localField));
        }
    }
    if (remoteObject.getVariables() != null && remoteObject.getVariables().size() > 1) {
        List<FieldDeclaration> remoteFields = split(remoteObject);
        for (FieldDeclaration remoteField : remoteFields) {
            super.apply(remoteField, localFields, resultList);
        }
    } else {
        super.apply(remoteObject, localFields, resultList);
    }
}
 

import org.walkmod.javalang.ast.body.FieldDeclaration; //导入依赖的package包/类
private List<FieldDeclaration> split(FieldDeclaration fieldDeclaration) {
    List<FieldDeclaration> res = new LinkedList<FieldDeclaration>();
    if (fieldDeclaration.getVariables().size() > 1) {
        for (VariableDeclarator vd : fieldDeclaration.getVariables()) {
            FieldDeclaration fd = new FieldDeclaration();
            fd.setAnnotations(fieldDeclaration.getAnnotations());
            fd.setJavaDoc(fieldDeclaration.getJavaDoc());
            fd.setModifiers(fieldDeclaration.getModifiers());
            fd.setType(fieldDeclaration.getType());
            fd.setBeginLine(fieldDeclaration.getBeginLine());
            fd.setBeginColumn(fieldDeclaration.getBeginColumn());
            fd.setEndColumn(vd.getEndColumn());
            fd.setEndLine(vd.getEndLine());
            List<VariableDeclarator> vdList = new LinkedList<VariableDeclarator>();
            vdList.add(vd);
            fd.setVariables(vdList);
            res.add(fd);
        }
    } else {
        res.add(fieldDeclaration);
    }
    return res;
}
 

import org.walkmod.javalang.ast.body.FieldDeclaration; //导入依赖的package包/类
public Boolean visit(FieldDeclaration n1, Node arg) {
    FieldDeclaration n2 = (FieldDeclaration) arg;
    if (n1.getModifiers() != n2.getModifiers()) {
        return Boolean.FALSE;
    }
    if (!nodesEquals(n1.getAnnotations(), n2.getAnnotations())) {
        return Boolean.FALSE;
    }
    if (!nodeEquals(n1.getType(), n2.getType())) {
        return Boolean.FALSE;
    }
    if (!nodesEquals(n1.getVariables(), n2.getVariables())) {
        return Boolean.FALSE;
    }
    return Boolean.TRUE;
}
 

import org.walkmod.javalang.ast.body.FieldDeclaration; //导入依赖的package包/类
public void visit(FieldDeclaration n, Object arg) {
    prepareComments(n);
    printPreviousComments(n, arg);
    JavadocComment comment = n.getJavaDoc();
    printJavadoc(comment, arg);

    printPreviousComments(n, arg);
    printMemberAnnotations(n.getAnnotations(), arg);
    Type type = n.getType();
    printPreviousComments(type, arg);

    printModifiers(n.getModifiers());
    type.accept(this, arg);
    printer.print(" ");
    for (Iterator<VariableDeclarator> i = n.getVariables().iterator(); i.hasNext();) {
        VariableDeclarator var = i.next();
        var.accept(this, arg);
        if (i.hasNext()) {
            printer.print(", ");
        }
    }
    printer.print(";");
}
 

import org.walkmod.javalang.ast.body.FieldDeclaration; //导入依赖的package包/类
public Node visit(FieldDeclaration n, A arg) {
    if (n.getJavaDoc() != null) {
        n.setJavaDoc((JavadocComment) n.getJavaDoc().accept(this, arg));
    }
    List<AnnotationExpr> annotations = n.getAnnotations();
    if (annotations != null) {
        for (int i = 0; i < annotations.size(); i++) {
            annotations.set(i, (AnnotationExpr) annotations.get(i).accept(this, arg));
        }
        removeNulls(annotations);
    }
    n.setType((Type) n.getType().accept(this, arg));
    List<VariableDeclarator> variables = n.getVariables();
    for (int i = 0; i < variables.size(); i++) {
        variables.set(i, (VariableDeclarator) variables.get(i).accept(this, arg));
    }
    removeNulls(variables);
    return n;
}
 

import org.walkmod.javalang.ast.body.FieldDeclaration; //导入依赖的package包/类
@Override
public int compare(FieldDeclaration fd1, FieldDeclaration fd2) {
    if (fd1.getType().equals(fd2.getType())) {
        List<VariableDeclarator> vds = fd1.getVariables();
        List<VariableDeclarator> vds2 = fd2.getVariables();
        if (vds == null || vds.size() == 0 || vds2 == null || vds2.size() == 0) {
            return -1;
        }
        if (vds.size() == vds2.size()) {
            if (vds.containsAll(vds2)) {
                return 0;
            }
        }
    }
    return -1;
}
 

import org.walkmod.javalang.ast.body.FieldDeclaration; //导入依赖的package包/类
@Test
public void testRefactorTypeReference() throws Exception {
   String code = "public class A { Foo b;}";
   CompilationUnit modifiedCu = parser.parse(code, false);
   CompilationUnit originalCu = parser.parse(code, false);

   FieldDeclaration fd = (FieldDeclaration) modifiedCu.getTypes().get(0).getMembers().get(0);
   ClassOrInterfaceType type = (ClassOrInterfaceType) ((ReferenceType) fd.getType()).getType();
   type.setName("B");

   List<Action> actions = getActions(originalCu, modifiedCu);
   Assert.assertEquals(1, actions.size());
   Assert.assertEquals(ActionType.REPLACE, actions.get(0).getType());

   assertCode(actions, code, "public class A { B b;}");

}
 

import org.walkmod.javalang.ast.body.FieldDeclaration; //导入依赖的package包/类
@Test
public void testAppendField() throws Exception {
   String code = "public class A {\n private String name;\n}";
   CompilationUnit modifiedCu = parser.parse(code, false);

   String code2 = "public class A {\n private String name;\n}";

   FieldDeclaration fd = (FieldDeclaration) ASTManager.parse(FieldDeclaration.class, "private int age;", true);

   CompilationUnit originalCu = parser.parse(code2, false);
   modifiedCu.getTypes().get(0).getMembers().add(fd);
   List<Action> actions = getActions(originalCu, modifiedCu);

   // 37
   Assert.assertEquals(1, actions.size());
   Assert.assertEquals(1, actions.get(0).getBeginColumn());
   Assert.assertEquals(ActionType.APPEND, actions.get(0).getType());
   assertCode(actions, code2, "public class A {\n private String name;\n private int age;\n}");
}
 

import org.walkmod.javalang.ast.body.FieldDeclaration; //导入依赖的package包/类
@Test
public void testInnerComments() throws ParseException {
   String code = "public class B { private /*final*/ int name;}";
   DefaultJavaParser parser = new DefaultJavaParser();
   CompilationUnit cu = parser.parse(code, false);
   CompilationUnit cu2 = parser.parse(code, false);

   FieldDeclaration fd = (FieldDeclaration) cu.getTypes().get(0).getMembers().get(0);
   List<VariableDeclarator> vds = fd.getVariables();
   vds.add(new VariableDeclarator(new VariableDeclaratorId("surname")));
   Comment c = cu.getComments().get(0);
   c.setContent("static");

   List<Action> actions = getActions(cu2, cu);
   Assert.assertEquals(1, actions.size());

   assertCode(actions, code, "public class B { /*static*/private int name, surname;}");

}
 

import org.walkmod.javalang.ast.body.FieldDeclaration; //导入依赖的package包/类
@Override
public void doPop(Symbol<?> symbol, SymbolTable table) {

    Node n = symbol.getLocation();
    if (n != null) {
        Map<String, Object> attrs = symbol.getAttributes();

        Object reads = attrs.get(ReferencesCounterAction.READS);

        Object writes = attrs.get(ReferencesCounterAction.WRITES);

        if (reads == null && writes == null) {
            if (n instanceof MethodDeclaration) {
                removeMethod(symbol, table);
            } else if (n instanceof VariableDeclarator) {
                Node parentNode = n.getParentNode();
                if (parentNode != null) {
                    if (parentNode instanceof FieldDeclaration) {
                        removeField(symbol, table, (FieldDeclaration) parentNode);
                    } else {
                        removeVariable(symbol, table, (VariableDeclarationExpr) parentNode);
                    }
                }

            } else if (n instanceof TypeDeclaration) {
                Symbol<?> thisSymbol = table.findSymbol("this", ReferenceType.VARIABLE);
                if (symbol.getReferenceType().equals(ReferenceType.TYPE) && thisSymbol != null
                        && !thisSymbol.getType().equals(symbol.getType())) {
                    removeType(symbol, table);
                }
            } else if (n instanceof ImportDeclaration) {
                removeImport(symbol, table);
            }
        }
    }
}
 

import org.walkmod.javalang.ast.body.FieldDeclaration; //导入依赖的package包/类
@Test
public void testAnnonymousClass() throws Exception {
    String code =
            "public class Foo{ public void bar() { Foo o = new Foo() { private String name; public void bar() { System.out.println(\"hello\"); }};}}";
    CompilationUnit cu = run(code);
    MethodDeclaration md = (MethodDeclaration) cu.getTypes().get(0).getMembers().get(0);
    ExpressionStmt stmt = (ExpressionStmt) md.getBody().getStmts().get(0);
    VariableDeclarationExpr expr = (VariableDeclarationExpr) stmt.getExpression();
    ObjectCreationExpr oce = (ObjectCreationExpr) expr.getVars().get(0).getInit();
    // The name attribute should be removed
    FieldDeclaration fd = (FieldDeclaration) oce.getAnonymousClassBody().get(0);

    Assert.assertNull(fd.getUsages());
}
 

import org.walkmod.javalang.ast.body.FieldDeclaration; //导入依赖的package包/类
@Test
public void testMethodsOverwritingInAnnonymousClasses() throws Exception {
    String code =
            "public class A{ public Object get() { return null; } public A foo = new A() { public String get(){ return name();} private String name(){ return \"hello\"; }};}";
    CompilationUnit cu = run(code);
    BodyDeclaration bd = cu.getTypes().get(0).getMembers().get(1);
    FieldDeclaration aux = (FieldDeclaration) bd;
    ObjectCreationExpr expr = (ObjectCreationExpr) aux.getVariables().get(0).getInit();
    MethodDeclaration md = (MethodDeclaration) expr.getAnonymousClassBody().get(1);
    Assert.assertNotNull(md.getUsages());
}
 

import org.walkmod.javalang.ast.body.FieldDeclaration; //导入依赖的package包/类
@Test
public void testAnonymousArrayExpressions() throws Exception {
    CompilationUnit cu = run("public class A{ Integer v[][] = { new Integer[] {3} }; Integer a[] = v[0]; }");
    FieldDeclaration fd = (FieldDeclaration) cu.getTypes().get(0).getMembers().get(0);
    SymbolData sd = fd.getType().getSymbolData();
    Assert.assertNotNull(sd);
    Assert.assertEquals(Integer.class.getName(), sd.getName());
    SymbolData sd2 = fd.getVariables().get(0).getInit().getSymbolData();
    Assert.assertNotNull(sd2);
    Assert.assertEquals(Integer.class.getName(), sd2.getName());
    Assert.assertEquals(2, sd2.getArrayCount());
}