edu.jmu.decaf

Class ASTLiteral

java.lang.Object

edu.jmu.decaf.ASTNode

edu.jmu.decaf.ASTExpression

edu.jmu.decaf.ASTLiteral

public class ASTLiteral
extends ASTExpression

Decaf literal value.

Here are the Decaf data types and their corresponding Java data types:

Decaf/Java type equivalences

ASTNode.DataType	Java type
INT	Integer
BOOL	Boolean
STR	String
VOID	null

Nested Class Summary

Nested classes/interfaces inherited from class edu.jmu.decaf.ASTNode

ASTNode.DataType

Field Summary

Fields

Modifier and Type	Field and Description
ASTNode.DataType	type
Object	value

Fields inherited from class edu.jmu.decaf.ASTNode

attributes

Constructor Summary

Constructors

Constructor and Description
ASTLiteral(ASTNode.DataType type, Object value)

Method Summary

Modifier and Type	Method and Description
static String	addEscapeCodes(String str) Remove quotes, newlines, and tabs from string literals and replace them with their escape codes.
static String	removeEscapeCodes(String str) Remove escape codes from string literals and replace them with the corresponding special character (quotes, newlines, or tabs)
String	toString()
void	traverse(ASTVisitor visitor) Generic traversal method for the visitor pattern.

Methods inherited from class edu.jmu.decaf.ASTNode

getASTTypeStr, getDepth, getParent, getSourceInfo, getType, setDepth, setParent, setSourceInfo, setType, typeToString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

type

public ASTNode.DataType type

value

public Object value

Constructor Detail

ASTLiteral

public ASTLiteral(ASTNode.DataType type,
                  Object value)

Method Detail

removeEscapeCodes

public static String removeEscapeCodes(String str)

Remove escape codes from string literals and replace them with the corresponding special character (quotes, newlines, or tabs)

Parameters:

str - String to manipulate

Returns:

String with escape codes replaced by special characters

addEscapeCodes

public static String addEscapeCodes(String str)

Remove quotes, newlines, and tabs from string literals and replace them with their escape codes.

Parameters:

str - String to manipulate

Returns:

String with special characters replaced by escape codes

traverse

public void traverse(ASTVisitor visitor)

Description copied from class: ASTNode

Generic traversal method for the visitor pattern. This will be overloaded by all child classes.

Overrides:

traverse in class ASTNode

Parameters:

visitor - Visitor object

toString

public String toString()

Overrides:

toString in class Object