public boolean isBooleanType(final Expression expression) {
  if ((expression instanceof BooleanLiteral)) {
    return true;
  }
  if ((expression instanceof SimpleName)) {
    final Type declType = this._aSTFlattenerUtils.findDeclaredType(((SimpleName)expression));
    if ((declType != null)) {
      boolean _matched = false;
      boolean _isPrimitiveType = declType.isPrimitiveType();
      if (_isPrimitiveType) {
        _matched=true;
        PrimitiveType.Code _primitiveTypeCode = ((PrimitiveType) declType).getPrimitiveTypeCode();
        return Objects.equal(_primitiveTypeCode, PrimitiveType.BOOLEAN);
      }
    }
  }
  return false;
}
 

protected boolean isTypeHolder(Object o) {
	if(o.getClass().equals(MethodInvocation.class) || o.getClass().equals(SuperMethodInvocation.class)			
			|| o.getClass().equals(NumberLiteral.class) || o.getClass().equals(StringLiteral.class)
			|| o.getClass().equals(CharacterLiteral.class) || o.getClass().equals(BooleanLiteral.class)
			|| o.getClass().equals(TypeLiteral.class) || o.getClass().equals(NullLiteral.class)
			|| o.getClass().equals(ArrayCreation.class)
			|| o.getClass().equals(ClassInstanceCreation.class)
			|| o.getClass().equals(ArrayAccess.class) || o.getClass().equals(FieldAccess.class)
			|| o.getClass().equals(SuperFieldAccess.class) || o.getClass().equals(ParenthesizedExpression.class)
			|| o.getClass().equals(SimpleName.class) || o.getClass().equals(QualifiedName.class)
			|| o.getClass().equals(CastExpression.class) || o.getClass().equals(InfixExpression.class)
			|| o.getClass().equals(PrefixExpression.class) || o.getClass().equals(InstanceofExpression.class)
			|| o.getClass().equals(ThisExpression.class) || o.getClass().equals(ConditionalExpression.class))
		return true;
	return false;
}
 

private BoolLiteral visit(BooleanLiteral node) {
	int startLine = _cunit.getLineNumber(node.getStartPosition());
	int endLine = _cunit.getLineNumber(node.getStartPosition() + node.getLength());
	BoolLiteral literal = new BoolLiteral(startLine, endLine, node);
	literal.setValue(node.booleanValue());
	AST ast = AST.newAST(AST.JLS8);
	Type type = ast.newPrimitiveType(PrimitiveType.BOOLEAN);
	literal.setType(type);
	
	return literal;
}
 

public boolean visit(BooleanLiteral node) {
	booleanLiterals.add(node.toString());
	if(current.getUserObject() != null) {
		AnonymousClassDeclarationObject anonymous = (AnonymousClassDeclarationObject)current.getUserObject();
		anonymous.getBooleanLiterals().add(node.toString());
	}
	return super.visit(node);
}
 

private void processArgument(Expression argument) {
	if(argument instanceof SuperMethodInvocation ||
			argument instanceof Name ||
			argument instanceof StringLiteral ||
			argument instanceof BooleanLiteral ||
			(argument instanceof FieldAccess && ((FieldAccess)argument).getExpression() instanceof ThisExpression) ||
			(argument instanceof ArrayAccess && invalidArrayAccess((ArrayAccess)argument)) ||
			(argument instanceof InfixExpression && invalidInfix((InfixExpression)argument)))
		return;
	this.arguments.add(argument.toString());
	if(current.getUserObject() != null) {
		AnonymousClassDeclarationObject anonymous = (AnonymousClassDeclarationObject)current.getUserObject();
		anonymous.getArguments().add(argument.toString());
	}
}
 

public boolean instanceOf(Expression expression) {
	if(expression instanceof BooleanLiteral || expression instanceof CharacterLiteral || expression instanceof StringLiteral ||
			expression instanceof NullLiteral || expression instanceof NumberLiteral || expression instanceof TypeLiteral)
		return true;
	else
		return false;
}
 

public boolean visit(BooleanLiteral expr) {
	/*
	 * BooleanLiteral: true
                          false
	 */
	StyledStringStyler styler = determineDiffStyle(expr, new StyledStringStyler(keywordStyle));
	styledString.append(String.valueOf(expr.booleanValue()), styler);
	return false;
}
 

public Expression returnBool(boolean val) {
	BooleanLiteral num = ast.newBooleanLiteral(val);
	num.setProperty(TYPEBIND_PROP, StructCache.FieldType.BOOLEAN);
	return num;
}
 

@Override
public void endVisit(BooleanLiteral node) {
	// Leaf node.
}
 

@Override
public boolean visit(final BooleanLiteral it) {
  this.appendToBuffer(String.valueOf(it.booleanValue()));
  return false;
}
 

@Override
public void endVisit(BooleanLiteral node) {
	ITypeBinding typeBinding= node.resolveTypeBinding();
	ImmutableTypeVariable2 cv= fTCModel.makeImmutableTypeVariable(typeBinding, node);
	setConstraintVariable(node, cv);
}
 

@Override
public void endVisit(BooleanLiteral node) {
	// Leaf node.
}
 

@Override
public boolean visit(BooleanLiteral node) {
	if (node.subtreeMatch(fMatcher, fNodeToMatch))
		return matches(node);
	return super.visit(node);
}
 

@Override
public boolean visit(BooleanLiteral node) {
	add(fCreator.create(node));
	return true;
}
 

@Override
public void endVisit(BooleanLiteral node) {
	endVisitNode(node);
}
 

@Override
public boolean visit(BooleanLiteral node) {
	return visitNode(node);
}
 

@Override
public boolean visit(BooleanLiteral node) {
	return visitLiteral(node);
}
 

public LiteralObject(Expression expression) {
	if(expression instanceof StringLiteral) {
		StringLiteral stringLiteral = (StringLiteral)expression;
		literalType = LiteralType.STRING;
		value = stringLiteral.getLiteralValue();
		type = TypeObject.extractTypeObject(stringLiteral.resolveTypeBinding().getQualifiedName());
	}
	else if(expression instanceof NullLiteral) {
		NullLiteral nullLiteral = (NullLiteral)expression;
		literalType = LiteralType.NULL;
		value = "null";
		if(nullLiteral.resolveTypeBinding() != null) {
			type = TypeObject.extractTypeObject(nullLiteral.resolveTypeBinding().getQualifiedName());
		}
	}
	else if(expression instanceof NumberLiteral) {
		NumberLiteral numberLiteral = (NumberLiteral)expression;
		literalType = LiteralType.NUMBER;
		value = numberLiteral.getToken();
		type = TypeObject.extractTypeObject(numberLiteral.resolveTypeBinding().getQualifiedName());
	}
	else if(expression instanceof BooleanLiteral) {
		BooleanLiteral booleanLiteral = (BooleanLiteral)expression;
		literalType = LiteralType.BOOLEAN;
		value = Boolean.toString(booleanLiteral.booleanValue());
		type = TypeObject.extractTypeObject(booleanLiteral.resolveTypeBinding().getQualifiedName());
	}
	else if(expression instanceof CharacterLiteral) {
		CharacterLiteral characterLiteral = (CharacterLiteral)expression;
		literalType = LiteralType.CHARACTER;
		value = Character.toString(characterLiteral.charValue());
		type = TypeObject.extractTypeObject(characterLiteral.resolveTypeBinding().getQualifiedName());
	}
	else if(expression instanceof TypeLiteral) {
		TypeLiteral typeLiteral = (TypeLiteral)expression;
		literalType = LiteralType.TYPE;
		value = typeLiteral.getType().toString();
		type = TypeObject.extractTypeObject(typeLiteral.resolveTypeBinding().getQualifiedName());
	}
	this.literal = ASTInformationGenerator.generateASTInformation(expression);
}
 

public boolean visit(BooleanLiteral expr) {
	bindingKeys.add(String.valueOf(expr.booleanValue()));
	return false;
}
 

private void handleExpression(Expression expression) {
	if (expression instanceof ArrayAccess) {
		visit((ArrayAccess) expression);
	} else if (expression instanceof ArrayCreation) {
		visit((ArrayCreation) expression);
	} else if (expression instanceof ArrayInitializer) {
		visit((ArrayInitializer) expression);
	} else if (expression instanceof Assignment) {
		visit((Assignment) expression);
	} else if (expression instanceof BooleanLiteral) {
		visit((BooleanLiteral) expression);
	} else if (expression instanceof CastExpression) {
		visit((CastExpression) expression);
	} else if (expression instanceof CharacterLiteral) {
		visit((CharacterLiteral) expression);
	} else if (expression instanceof ClassInstanceCreation) {
		visit((ClassInstanceCreation) expression);
	} else if (expression instanceof ConditionalExpression) {
		visit((ConditionalExpression) expression);
	} else if (expression instanceof FieldAccess) {
		visit((FieldAccess) expression);
	} else if (expression instanceof InfixExpression) {
		visit((InfixExpression) expression);
	} else if (expression instanceof InstanceofExpression) {
		visit((InstanceofExpression) expression);
	} else if (expression instanceof MethodInvocation) {
		visit((MethodInvocation) expression);
	} else if (expression instanceof NullLiteral) {
		visit((NullLiteral) expression);
	} else if (expression instanceof NumberLiteral) {
		visit((NumberLiteral) expression);
	} else if (expression instanceof ParenthesizedExpression) {
		visit((ParenthesizedExpression) expression);
	} else if (expression instanceof PostfixExpression) {
		visit((PostfixExpression) expression);
	} else if (expression instanceof PrefixExpression) {
		visit((PrefixExpression) expression);
	} else if ((expression instanceof QualifiedName)) {
		visit((QualifiedName) expression);
	} else if (expression instanceof SimpleName) {
		visit((SimpleName) expression);
	} else if (expression instanceof StringLiteral) {
		visit((StringLiteral) expression);
	} else if (expression instanceof SuperFieldAccess) {
		visit((SuperFieldAccess) expression);
	} else if (expression instanceof SuperMethodInvocation) {
		visit((SuperMethodInvocation) expression);
	} else if (expression instanceof ThisExpression) {
		visit((ThisExpression) expression);
	} else if (expression instanceof TypeLiteral) {
		visit((TypeLiteral) expression);
	} else if (expression instanceof VariableDeclarationExpression) {
		visit((VariableDeclarationExpression) expression);
	}
}
 

private void handleExpression(Expression expression) {
	if (expression instanceof ArrayAccess) {
		visit((ArrayAccess) expression);
	} else if (expression instanceof ArrayCreation) {
		visit((ArrayCreation) expression);
	} else if (expression instanceof ArrayInitializer) {
		visit((ArrayInitializer) expression);
	} else if (expression instanceof Assignment) {
		visit((Assignment) expression);
	} else if (expression instanceof BooleanLiteral) {
		visit((BooleanLiteral) expression);
	} else if (expression instanceof CastExpression) {
		visit((CastExpression) expression);
	} else if (expression instanceof CharacterLiteral) {
		visit((CharacterLiteral) expression);
	} else if (expression instanceof ClassInstanceCreation) {
		visit((ClassInstanceCreation) expression);
	} else if (expression instanceof ConditionalExpression) {
		visit((ConditionalExpression) expression);
	} else if (expression instanceof FieldAccess) {
		visit((FieldAccess) expression);
	} else if (expression instanceof InfixExpression) {
		visit((InfixExpression) expression);
	} else if (expression instanceof InstanceofExpression) {
		visit((InstanceofExpression) expression);
	} else if (expression instanceof MethodInvocation) {
		visit((MethodInvocation) expression);
	} else if (expression instanceof NullLiteral) {
		visit((NullLiteral) expression);
	} else if (expression instanceof NumberLiteral) {
		visit((NumberLiteral) expression);
	} else if (expression instanceof ParenthesizedExpression) {
		visit((ParenthesizedExpression) expression);
	} else if (expression instanceof PostfixExpression) {
		visit((PostfixExpression) expression);
	} else if (expression instanceof PrefixExpression) {
		visit((PrefixExpression) expression);
	} else if ((expression instanceof QualifiedName)) {
		visit((QualifiedName) expression);
	} else if (expression instanceof SimpleName) {
		visit((SimpleName) expression);
	} else if (expression instanceof StringLiteral) {
		visit((StringLiteral) expression);
	} else if (expression instanceof SuperFieldAccess) {
		visit((SuperFieldAccess) expression);
	} else if (expression instanceof SuperMethodInvocation) {
		visit((SuperMethodInvocation) expression);
	} else if (expression instanceof ThisExpression) {
		visit((ThisExpression) expression);
	} else if (expression instanceof TypeLiteral) {
		visit((TypeLiteral) expression);
	} else if (expression instanceof VariableDeclarationExpression) {
		visit((VariableDeclarationExpression) expression);
	}
}
 

/**
 * @param node the AST node
 * @return array of type constraints, may be empty
 * @see org.eclipse.jdt.core.dom.ASTVisitor#visit(org.eclipse.jdt.core.dom.BooleanLiteral)
 */
public ITypeConstraint[] create(BooleanLiteral node) {
	return EMPTY_ARRAY;
}