org.jruby.ir.operands

Class FrozenString

java.lang.Object

org.jruby.ir.operands.Operand

org.jruby.ir.operands.ImmutableLiteral

org.jruby.ir.operands.FrozenString

All Implemented Interfaces:

Stringable

public class FrozenString
extends ImmutableLiteral
implements Stringable

Represents a frozen string value.

Field Summary

Fields

Modifier and Type	Field and Description
org.jruby.util.ByteList	bytelist
int	coderange
String	file
int	line
String	string

Fields inherited from class org.jruby.ir.operands.Operand

EMPTY_ARRAY

Constructor Summary

Constructors

Modifier	Constructor and Description
	FrozenString(org.jruby.util.ByteList byteList, int cr, String file, int line) Used by persistence and by .freeze optimization
	FrozenString(String s) IRBuild.buildGetDefinition returns a frozen string and this is for all intern'd Java strings.
protected	FrozenString(String string, org.jruby.util.ByteList bytelist, int coderange, String file, int line)

Method Summary

Modifier and Type	Method and Description
void	addUsedVariables(List<Variable> l) Append the list of variables used in this operand to the input list -- force every operand to implement this because a missing implementation can cause bad failures.
Operand	cloneForInlining(CloneInfo ii)
Object	createCacheObject(ThreadContext context) Implementing class is responsible for constructing the cached value.
static FrozenString	decode(IRReaderDecoder d)
void	encode(IRWriterEncoder e)
boolean	equals(Object other)
org.jruby.util.ByteList	getByteList()
int	getCodeRange()
String	getFile()
int	getLine()
OperandType	getOperandType()
String	getString()
int	hashCode()
boolean	hasKnownValue() Do we know the value of this operand at compile-time? If we do then it may be possible to constant propagate (one case: We also know it is also an ImmutableLiteral).
String	toString()
void	visit(IRVisitor visitor)

Methods inherited from class org.jruby.ir.operands.ImmutableLiteral

cachedObject, canCopyPropagate, isCached, retrieve

Methods inherited from class org.jruby.ir.operands.Operand

getSimplifiedOperand, getValue

Methods inherited from class java.lang.Object

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

Field Detail

bytelist

public final org.jruby.util.ByteList bytelist

string

public final String string

coderange

public final int coderange

file

public final String file

line

public final int line

Constructor Detail

FrozenString

public FrozenString(org.jruby.util.ByteList byteList,
                    int cr,
                    String file,
                    int line)

Used by persistence and by .freeze optimization

FrozenString

protected FrozenString(String string,
                       org.jruby.util.ByteList bytelist,
                       int coderange,
                       String file,
                       int line)

FrozenString

public FrozenString(String s)

IRBuild.buildGetDefinition returns a frozen string and this is for all intern'd Java strings.

Method Detail

getOperandType

public OperandType getOperandType()

Specified by:

getOperandType in class Operand

hasKnownValue

public boolean hasKnownValue()

Description copied from class: Operand

Do we know the value of this operand at compile-time? If we do then it may be possible to constant propagate (one case: We also know it is also an ImmutableLiteral).

Overrides:

hasKnownValue in class ImmutableLiteral

Returns:

true if a known compile-time value.

addUsedVariables

public void addUsedVariables(List<Variable> l)

Description copied from class: Operand

Append the list of variables used in this operand to the input list -- force every operand to implement this because a missing implementation can cause bad failures.

Overrides:

addUsedVariables in class ImmutableLiteral

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object other)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

cloneForInlining

public Operand cloneForInlining(CloneInfo ii)

Overrides:

cloneForInlining in class ImmutableLiteral

createCacheObject

public Object createCacheObject(ThreadContext context)

Description copied from class: ImmutableLiteral

Implementing class is responsible for constructing the cached value.

Specified by:

createCacheObject in class ImmutableLiteral

visit

public void visit(IRVisitor visitor)

Overrides:

visit in class Operand

getByteList

public org.jruby.util.ByteList getByteList()

getString

public String getString()

Specified by:

getString in interface Stringable

getFile

public String getFile()

getLine

public int getLine()

encode

public void encode(IRWriterEncoder e)

Overrides:

encode in class Operand

decode

public static FrozenString decode(IRReaderDecoder d)

getCodeRange

public int getCodeRange()