com.asakusafw.dmdl.model

Class AstLiteral

java.lang.Object

com.asakusafw.dmdl.model.AbstractAstNode

com.asakusafw.dmdl.model.AstLiteral

All Implemented Interfaces:

AstAttributeValue, AstNode

public class AstLiteral
extends AbstractAstNode
implements AstAttributeValue

Represents literals.

Since:

0.2.0

Version:

0.9.1

Nested Class Summary

Nested classes/interfaces inherited from interface com.asakusafw.dmdl.model.AstNode

AstNode.AbstractVisitor<C,R>, AstNode.Visitor<C,R>

Field Summary

Fields

Modifier and Type	Field and Description
LiteralKind	kind The kind of this literal.
String	token The (original) token of this literal.

Constructor Summary

Constructors

Constructor and Description
AstLiteral(Region region, String token, LiteralKind kind) Creates a new instance.

Method Summary

Modifier and Type	Method and Description
<C,R> R	accept(C context, AstNode.Visitor<C,R> visitor) Accepts and calls back the visitor.
boolean	equals(Object obj)
LiteralKind	getKind() Returns the kind of this literal.
Region	getRegion() Returns the region of this node.
String	getToken() Returns the token of this literal.
int	hashCode()
static String	quote(String string) Converts the string as the token of DMDL string literal.
boolean	toBooleanValue() Returns the boolean value of this literal.
BigDecimal	toDecimalValue() Returns the decimal value of this literal.
BigInteger	toIntegerValue() Returns the integer value of this literal.
String	toStringValue() Returns the string value of this literal.
Object	toValue() Returns the value of this literal.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Detail

token

public final String token

The (original) token of this literal.

kind

public final LiteralKind kind

The kind of this literal.

Constructor Detail

AstLiteral

public AstLiteral(Region region,
                  String token,
                  LiteralKind kind)

Creates a new instance.

Parameters:

region - the region of this node on the enclosing script, or null if unknown

token - the token of this literal

kind - the kind of this literal

Throws:

IllegalArgumentException - if some parameters were null

Method Detail

quote

public static String quote(String string)

Converts the string as the token of DMDL string literal.

Parameters:

string - target string

Returns:

the corresponded DMDL string literal

Throws:

IllegalArgumentException - if some parameters were null

toStringValue

public String toStringValue()

Returns the string value of this literal.

Returns:

the string value

Throws:

IllegalStateException - if this is not a string literal

toIntegerValue

public BigInteger toIntegerValue()

Returns the integer value of this literal.

Returns:

the integer value

Throws:

IllegalStateException - if this is not an integer literal

toDecimalValue

public BigDecimal toDecimalValue()

Returns the decimal value of this literal.

Returns:

the decimal value

Throws:

IllegalStateException - if this is not a decimal literal

toBooleanValue

public boolean toBooleanValue()

Returns the boolean value of this literal.

Returns:

the boolean value

Throws:

IllegalStateException - if this is not a boolean literal

toValue

public Object toValue()

Returns the value of this literal.

Returns:

the value

Since:

0.9.1

getRegion

public Region getRegion()

Description copied from interface: AstNode

Returns the region of this node.

Specified by:

getRegion in interface AstNode

Returns:

the region, or null if unknown

getToken

public String getToken()

Returns the token of this literal.

Returns:

the token

getKind

public LiteralKind getKind()

Returns the kind of this literal.

Returns:

the literal kind

accept

public <C,R> R accept(C context,
                      AstNode.Visitor<C,R> visitor)

Description copied from interface: AstNode

Accepts and calls back the visitor.

Specified by:

accept in interface AstNode

Type Parameters:

C - type of visitor context

R - type of visitor result

Parameters:

context - the visitor context

visitor - the visitor to call back

Returns:

call back result

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object