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Antlr Java Parser aims to create a Java parser using Antlr 4 grammar rules.
/*
* Copyright (C) 2008 J�lio Vilmar Gesser.
*
* This file is part of Java 1.5 parser and Abstract Syntax Tree.
*
* Java 1.5 parser and Abstract Syntax Tree is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Java 1.5 parser and Abstract Syntax Tree is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Java 1.5 parser and Abstract Syntax Tree. If not, see {
private void removeNulls(List< ? > list) {
for (int i = list.size() - 1; i >= 0; i--) {
if (list.get(i) == null) {
list.remove(i);
}
}
}
public Node visit(AnnotationDeclaration n, A arg) {
List 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);
}
List members = n.getMembers();
if (members != null) {
for (int i = 0; i < members.size(); i++) {
members.set(i, (BodyDeclaration) members.get(i).accept(this, arg));
}
removeNulls(members);
}
return n;
}
public Node visit(AnnotationMemberDeclaration n, A arg) {
List 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));
if (n.getDefaultValue() != null) {
n.setDefaultValue((Expression) n.getDefaultValue().accept(this, arg));
}
return n;
}
public Node visit(ArrayAccessExpr n, A arg) {
n.setName((Expression) n.getName().accept(this, arg));
n.setIndex((Expression) n.getIndex().accept(this, arg));
return n;
}
public Node visit(ArrayCreationExpr n, A arg) {
n.setType((Type) n.getType().accept(this, arg));
if (n.getDimensions() != null) {
List dimensions = n.getDimensions();
if (dimensions != null) {
for (int i = 0; i < dimensions.size(); i++) {
dimensions.set(i, (Expression) dimensions.get(i).accept(this, arg));
}
removeNulls(dimensions);
}
} else {
n.setInitializer((ArrayInitializerExpr) n.getInitializer().accept(this, arg));
}
return n;
}
public Node visit(ArrayInitializerExpr n, A arg) {
if (n.getValues() != null) {
List values = n.getValues();
if (values != null) {
for (int i = 0; i < values.size(); i++) {
values.set(i, (Expression) values.get(i).accept(this, arg));
}
removeNulls(values);
}
}
return n;
}
public Node visit(AssertStmt n, A arg) {
n.setCheck((Expression) n.getCheck().accept(this, arg));
if (n.getMessage() != null) {
n.setMessage((Expression) n.getMessage().accept(this, arg));
}
return n;
}
public Node visit(AssignExpr n, A arg) {
n.setTarget((Expression) n.getTarget().accept(this, arg));
n.setValue((Expression) n.getValue().accept(this, arg));
return n;
}
public Node visit(BinaryExpr n, A arg) {
n.setLeft((Expression) n.getLeft().accept(this, arg));
n.setRight((Expression) n.getRight().accept(this, arg));
return n;
}
public Node visit(BlockStmt n, A arg) {
List stmts = n.getStmts();
if (stmts != null) {
for (int i = 0; i < stmts.size(); i++) {
stmts.set(i, (Statement) stmts.get(i).accept(this, arg));
}
removeNulls(stmts);
}
return n;
}
public Node visit(BooleanLiteralExpr n, A arg) {
return n;
}
public Node visit(BreakStmt n, A arg) {
return n;
}
public Node visit(CastExpr n, A arg) {
n.setType((Type) n.getType().accept(this, arg));
n.setExpr((Expression) n.getExpr().accept(this, arg));
return n;
}
public Node visit(CatchClause n, A arg) {
n.setExcept((CatchParameter) n.getExcept().accept(this, arg));
n.setCatchBlock((BlockStmt) n.getCatchBlock().accept(this, arg));
return n;
}
public Node visit(CharLiteralExpr n, A arg) {
return n;
}
public Node visit(ClassExpr n, A arg) {
n.setType((Type) n.getType().accept(this, arg));
return n;
}
public Node visit(ClassOrInterfaceDeclaration n, A arg) {
List 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);
}
List typeParameters = n.getTypeParameters();
if (typeParameters != null) {
for (int i = 0; i < typeParameters.size(); i++) {
typeParameters.set(i, (TypeParameter) typeParameters.get(i).accept(this, arg));
}
removeNulls(typeParameters);
}
List extendz = n.getExtends();
if (extendz != null) {
for (int i = 0; i < extendz.size(); i++) {
extendz.set(i, (ClassOrInterfaceType) extendz.get(i).accept(this, arg));
}
removeNulls(extendz);
}
List implementz = n.getImplements();
if (implementz != null) {
for (int i = 0; i < implementz.size(); i++) {
implementz.set(i, (ClassOrInterfaceType) implementz.get(i).accept(this, arg));
}
removeNulls(implementz);
}
List members = n.getMembers();
if (members != null) {
for (int i = 0; i < members.size(); i++) {
members.set(i, (BodyDeclaration) members.get(i).accept(this, arg));
}
removeNulls(members);
}
return n;
}
public Node visit(ClassOrInterfaceType n, A arg) {
if (n.getScope() != null) {
n.setScope((ClassOrInterfaceType) n.getScope().accept(this, arg));
}
List typeArgs = n.getTypeArgs();
if (typeArgs != null) {
for (int i = 0; i < typeArgs.size(); i++) {
typeArgs.set(i, (Type) typeArgs.get(i).accept(this, arg));
}
removeNulls(typeArgs);
}
return n;
}
public Node visit(CompilationUnit n, A arg) {
if (n.getPackage() != null) {
n.setPackage((PackageDeclaration) n.getPackage().accept(this, arg));
}
List imports = n.getImports();
if (imports != null) {
for (int i = 0; i < imports.size(); i++) {
imports.set(i, (ImportDeclaration) imports.get(i).accept(this, arg));
}
removeNulls(imports);
}
List types = n.getTypes();
if (types != null) {
for (int i = 0; i < types.size(); i++) {
types.set(i, (TypeDeclaration) types.get(i).accept(this, arg));
}
removeNulls(types);
}
return n;
}
public Node visit(ConditionalExpr n, A arg) {
n.setCondition((Expression) n.getCondition().accept(this, arg));
n.setThenExpr((Expression) n.getThenExpr().accept(this, arg));
n.setElseExpr((Expression) n.getElseExpr().accept(this, arg));
return n;
}
public Node visit(ConstructorDeclaration n, A arg) {
List 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);
}
List typeParameters = n.getTypeParameters();
if (typeParameters != null) {
for (int i = 0; i < typeParameters.size(); i++) {
typeParameters.set(i, (TypeParameter) typeParameters.get(i).accept(this, arg));
}
removeNulls(typeParameters);
}
List parameters = n.getParameters();
if (parameters != null) {
for (int i = 0; i < parameters.size(); i++) {
parameters.set(i, (Parameter) parameters.get(i).accept(this, arg));
}
removeNulls(parameters);
}
List throwz = n.getThrows();
if (throwz != null) {
for (int i = 0; i < throwz.size(); i++) {
throwz.set(i, (NameExpr) throwz.get(i).accept(this, arg));
}
removeNulls(throwz);
}
n.setBlock((BlockStmt) n.getBlock().accept(this, arg));
return n;
}
public Node visit(ContinueStmt n, A arg) {
return n;
}
public Node visit(DoStmt n, A arg) {
n.setBody((Statement) n.getBody().accept(this, arg));
n.setCondition((Expression) n.getCondition().accept(this, arg));
return n;
}
public Node visit(DoubleLiteralExpr n, A arg) {
return n;
}
public Node visit(EmptyMemberDeclaration n, A arg) {
return n;
}
public Node visit(EmptyStmt n, A arg) {
return n;
}
public Node visit(EmptyTypeDeclaration n, A arg) {
return n;
}
public Node visit(EnclosedExpr n, A arg) {
n.setInner((Expression) n.getInner().accept(this, arg));
return n;
}
public Node visit(EnumConstantDeclaration n, A arg) {
List 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);
}
List args = n.getArgs();
if (args != null) {
for (int i = 0; i < args.size(); i++) {
args.set(i, (Expression) args.get(i).accept(this, arg));
}
removeNulls(args);
}
List classBody = n.getClassBody();
if (classBody != null) {
for (int i = 0; i < classBody.size(); i++) {
classBody.set(i, (BodyDeclaration) classBody.get(i).accept(this, arg));
}
removeNulls(classBody);
}
return n;
}
public Node visit(EnumDeclaration n, A arg) {
List 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);
}
List implementz = n.getImplements();
if (implementz != null) {
for (int i = 0; i < implementz.size(); i++) {
implementz.set(i, (ClassOrInterfaceType) implementz.get(i).accept(this, arg));
}
removeNulls(implementz);
}
List entries = n.getEntries();
if (entries != null) {
for (int i = 0; i < entries.size(); i++) {
entries.set(i, (EnumConstantDeclaration) entries.get(i).accept(this, arg));
}
removeNulls(entries);
}
List members = n.getMembers();
if (members != null) {
for (int i = 0; i < members.size(); i++) {
members.set(i, (BodyDeclaration) members.get(i).accept(this, arg));
}
removeNulls(members);
}
return n;
}
public Node visit(ExplicitConstructorInvocationStmt n, A arg) {
if (!n.isThis()) {
if (n.getExpr() != null) {
n.setExpr((Expression) n.getExpr().accept(this, arg));
}
}
List typeArgs = n.getTypeArgs();
if (typeArgs != null) {
for (int i = 0; i < typeArgs.size(); i++) {
typeArgs.set(i, (Type) typeArgs.get(i).accept(this, arg));
}
removeNulls(typeArgs);
}
List args = n.getArgs();
if (args != null) {
for (int i = 0; i < args.size(); i++) {
args.set(i, (Expression) args.get(i).accept(this, arg));
}
removeNulls(args);
}
return n;
}
public Node visit(ExpressionStmt n, A arg) {
n.setExpression((Expression) n.getExpression().accept(this, arg));
return n;
}
public Node visit(FieldAccessExpr n, A arg) {
n.setScope((Expression) n.getScope().accept(this, arg));
return n;
}
public Node visit(FieldDeclaration n, A arg) {
List 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 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;
}
public Node visit(ForeachStmt n, A arg) {
n.setVariable((VariableDeclarationExpr) n.getVariable().accept(this, arg));
n.setIterable((Expression) n.getIterable().accept(this, arg));
n.setBody((Statement) n.getBody().accept(this, arg));
return n;
}
public Node visit(ForStmt n, A arg) {
List init = n.getInit();
if (init != null) {
for (int i = 0; i < init.size(); i++) {
init.set(i, (Expression) init.get(i).accept(this, arg));
}
removeNulls(init);
}
if (n.getCompare() != null) {
n.setCompare((Expression) n.getCompare().accept(this, arg));
}
List update = n.getUpdate();
if (update != null) {
for (int i = 0; i < update.size(); i++) {
update.set(i, (Expression) update.get(i).accept(this, arg));
}
removeNulls(update);
}
n.setBody((Statement) n.getBody().accept(this, arg));
return n;
}
public Node visit(IfStmt n, A arg) {
n.setCondition((Expression) n.getCondition().accept(this, arg));
n.setThenStmt((Statement) n.getThenStmt().accept(this, arg));
if (n.getElseStmt() != null) {
n.setElseStmt((Statement) n.getElseStmt().accept(this, arg));
}
return n;
}
public Node visit(ImportDeclaration n, A arg) {
n.setName((NameExpr) n.getName().accept(this, arg));
return n;
}
public Node visit(InitializerDeclaration n, A arg) {
n.setBlock((BlockStmt) n.getBlock().accept(this, arg));
return n;
}
public Node visit(InstanceOfExpr n, A arg) {
n.setExpr((Expression) n.getExpr().accept(this, arg));
n.setType((Type) n.getType().accept(this, arg));
return n;
}
public Node visit(IntegerLiteralExpr n, A arg) {
return n;
}
public Node visit(IntegerLiteralMinValueExpr n, A arg) {
return n;
}
public Node visit(LabeledStmt n, A arg) {
n.setStmt((Statement) n.getStmt().accept(this, arg));
return n;
}
public Node visit(LongLiteralExpr n, A arg) {
return n;
}
public Node visit(LongLiteralMinValueExpr n, A arg) {
return n;
}
public Node visit(MarkerAnnotationExpr n, A arg) {
n.setName((NameExpr) n.getName().accept(this, arg));
return n;
}
public Node visit(MemberValuePair n, A arg) {
n.setValue((Expression) n.getValue().accept(this, arg));
return n;
}
public Node visit(MethodCallExpr n, A arg) {
if (n.getScope() != null) {
n.setScope((Expression) n.getScope().accept(this, arg));
}
List typeArgs = n.getTypeArgs();
if (typeArgs != null) {
for (int i = 0; i < typeArgs.size(); i++) {
typeArgs.set(i, (Type) typeArgs.get(i).accept(this, arg));
}
removeNulls(typeArgs);
}
List args = n.getArgs();
if (args != null) {
for (int i = 0; i < args.size(); i++) {
args.set(i, (Expression) args.get(i).accept(this, arg));
}
removeNulls(args);
}
return n;
}
public Node visit(MethodDeclaration n, A arg) {
List 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);
}
List typeParameters = n.getTypeParameters();
if (typeParameters != null) {
for (int i = 0; i < typeParameters.size(); i++) {
typeParameters.set(i, (TypeParameter) typeParameters.get(i).accept(this, arg));
}
removeNulls(typeParameters);
}
n.setType((Type) n.getType().accept(this, arg));
List parameters = n.getParameters();
if (parameters != null) {
for (int i = 0; i < parameters.size(); i++) {
parameters.set(i, (Parameter) parameters.get(i).accept(this, arg));
}
removeNulls(parameters);
}
List throwz = n.getThrows();
if (throwz != null) {
for (int i = 0; i < throwz.size(); i++) {
throwz.set(i, (NameExpr) throwz.get(i).accept(this, arg));
}
removeNulls(throwz);
}
if (n.getBody() != null) {
n.setBody((BlockStmt) n.getBody().accept(this, arg));
}
return n;
}
public Node visit(NameExpr n, A arg) {
return n;
}
public Node visit(NormalAnnotationExpr n, A arg) {
n.setName((NameExpr) n.getName().accept(this, arg));
List pairs = n.getPairs();
if (pairs != null) {
for (int i = 0; i < pairs.size(); i++) {
pairs.set(i, (MemberValuePair) pairs.get(i).accept(this, arg));
}
removeNulls(pairs);
}
return n;
}
public Node visit(NullLiteralExpr n, A arg) {
return n;
}
public Node visit(ObjectCreationExpr n, A arg) {
if (n.getScope() != null) {
n.setScope((Expression) n.getScope().accept(this, arg));
}
List typeArgs = n.getTypeArgs();
if (typeArgs != null) {
for (int i = 0; i < typeArgs.size(); i++) {
typeArgs.set(i, (Type) typeArgs.get(i).accept(this, arg));
}
removeNulls(typeArgs);
}
n.setType((ClassOrInterfaceType) n.getType().accept(this, arg));
List args = n.getArgs();
if (args != null) {
for (int i = 0; i < args.size(); i++) {
args.set(i, (Expression) args.get(i).accept(this, arg));
}
removeNulls(args);
}
List anonymousClassBody = n.getAnonymousClassBody();
if (anonymousClassBody != null) {
for (int i = 0; i < anonymousClassBody.size(); i++) {
anonymousClassBody.set(i, (BodyDeclaration) anonymousClassBody.get(i).accept(this, arg));
}
removeNulls(anonymousClassBody);
}
return n;
}
public Node visit(PackageDeclaration n, A arg) {
List 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.setName((NameExpr) n.getName().accept(this, arg));
return n;
}
public Node visit(Parameter n, A arg) {
List 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));
n.setId((VariableDeclaratorId) n.getId().accept(this, arg));
return n;
}
public Node visit(CatchParameter n, A arg) {
List 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);
}
List typeList = new LinkedList();
for (Type type : n.getTypeList()) {
typeList.add((Type)type.accept(this, arg));
}
n.setTypeList(typeList);
n.setId((VariableDeclaratorId) n.getId().accept(this, arg));
return n;
}
public Node visit(PrimitiveType n, A arg) {
return n;
}
public Node visit(QualifiedNameExpr n, A arg) {
n.setQualifier((NameExpr) n.getQualifier().accept(this, arg));
return n;
}
public Node visit(ReferenceType n, A arg) {
n.setType((Type) n.getType().accept(this, arg));
return n;
}
public Node visit(ReturnStmt n, A arg) {
if (n.getExpr() != null) {
n.setExpr((Expression) n.getExpr().accept(this, arg));
}
return n;
}
public Node visit(SingleMemberAnnotationExpr n, A arg) {
n.setName((NameExpr) n.getName().accept(this, arg));
n.setMemberValue((Expression) n.getMemberValue().accept(this, arg));
return n;
}
public Node visit(StringLiteralExpr n, A arg) {
return n;
}
public Node visit(SuperExpr n, A arg) {
if (n.getClassExpr() != null) {
n.setClassExpr((Expression) n.getClassExpr().accept(this, arg));
}
return n;
}
public Node visit(SwitchEntryStmt n, A arg) {
if (n.getLabel() != null) {
n.setLabel((Expression) n.getLabel().accept(this, arg));
}
List stmts = n.getStmts();
if (stmts != null) {
for (int i = 0; i < stmts.size(); i++) {
stmts.set(i, (Statement) stmts.get(i).accept(this, arg));
}
removeNulls(stmts);
}
return n;
}
public Node visit(SwitchStmt n, A arg) {
n.setSelector((Expression) n.getSelector().accept(this, arg));
List entries = n.getEntries();
if (entries != null) {
for (int i = 0; i < entries.size(); i++) {
entries.set(i, (SwitchEntryStmt) entries.get(i).accept(this, arg));
}
removeNulls(entries);
}
return n;
}
public Node visit(SynchronizedStmt n, A arg) {
n.setExpr((Expression) n.getExpr().accept(this, arg));
n.setBlock((BlockStmt) n.getBlock().accept(this, arg));
return n;
}
public Node visit(ThisExpr n, A arg) {
if (n.getClassExpr() != null) {
n.setClassExpr((Expression) n.getClassExpr().accept(this, arg));
}
return n;
}
public Node visit(ThrowStmt n, A arg) {
n.setExpr((Expression) n.getExpr().accept(this, arg));
return n;
}
public Node visit(TryStmt n, A arg) {
n.setTryBlock((BlockStmt) n.getTryBlock().accept(this, arg));
List catchs = n.getCatchs();
if (catchs != null) {
for (int i = 0; i < catchs.size(); i++) {
catchs.set(i, (CatchClause) catchs.get(i).accept(this, arg));
}
removeNulls(catchs);
}
if (n.getFinallyBlock() != null) {
n.setFinallyBlock((BlockStmt) n.getFinallyBlock().accept(this, arg));
}
return n;
}
public Node visit(TypeDeclarationStmt n, A arg) {
n.setTypeDeclaration((TypeDeclaration) n.getTypeDeclaration().accept(this, arg));
return n;
}
public Node visit(TypeParameter n, A arg) {
List typeBound = n.getTypeBound();
if (typeBound != null) {
for (int i = 0; i < typeBound.size(); i++) {
typeBound.set(i, (ClassOrInterfaceType) typeBound.get(i).accept(this, arg));
}
removeNulls(typeBound);
}
return n;
}
public Node visit(UnaryExpr n, A arg) {
n.setExpr((Expression) n.getExpr().accept(this, arg));
return n;
}
public Node visit(VariableDeclarationExpr n, A arg) {
List 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 vars = n.getVars();
for (int i = 0; i < vars.size(); i++) {
vars.set(i, (VariableDeclarator) vars.get(i).accept(this, arg));
}
removeNulls(vars);
return n;
}
public Node visit(VariableDeclarator n, A arg) {
n.setId((VariableDeclaratorId) n.getId().accept(this, arg));
if (n.getInit() != null) {
n.setInit((Expression) n.getInit().accept(this, arg));
}
return n;
}
public Node visit(VariableDeclaratorId n, A arg) {
return n;
}
public Node visit(VoidType n, A arg) {
return n;
}
public Node visit(WhileStmt n, A arg) {
n.setCondition((Expression) n.getCondition().accept(this, arg));
n.setBody((Statement) n.getBody().accept(this, arg));
return n;
}
public Node visit(WildcardType n, A arg) {
if (n.getExtends() != null) {
n.setExtends((ReferenceType) n.getExtends().accept(this, arg));
}
if (n.getSuper() != null) {
n.setSuper((ReferenceType) n.getSuper().accept(this, arg));
}
return n;
}
}
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