Package org.jruby.ir.operands

Class FrozenString

java.lang.Object

org.jruby.ir.operands.Operand

org.jruby.ir.operands.ImmutableLiteral<RubyString>

org.jruby.ir.operands.FrozenString

All Implemented Interfaces:

Stringable, StringLiteral

public class FrozenString
extends ImmutableLiteral<RubyString>
implements Stringable, StringLiteral

Represents a frozen string value.

Field Summary

Fields

Modifier and Type	Field	Description
final ByteList	bytelist
final int	coderange
final String	file
final int	line
String	string

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

EMPTY_ARRAY

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
Operand	cloneForInlining(CloneInfo ii)
RubyString	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)
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).
boolean	isCached()	Has this object already been cached?
boolean	isTruthyImmediate()	Returns true if this is an immediate value that will always be considered truthy (true, numbers, etc)
String	toString()
void	visit(IRVisitor visitor)

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

addUsedVariables, cachedObject, canCopyPropagate, retrieve

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

getSimplifiedOperand, getValue, isFalseyImmediate

Methods inherited from class java.lang.Object

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

Field Details

bytelist

public final ByteList bytelist

coderange

public final int coderange

file

public final String file

line

public final int line

string

public String string

Constructor Details

FrozenString

public FrozenString(ByteList bytelist,
 int coderange,
 String file,
 int line)

Used by persistence and by .freeze optimization

FrozenString

public FrozenString(RubySymbol symbol)

FrozenString

public FrozenString(String s)

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

FrozenString

protected FrozenString(ByteList byteList)

Method Details

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<RubyString>

Returns:

true if a known compile-time value.

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<RubyString>

createCacheObject

public RubyString createCacheObject(ThreadContext context)

Description copied from class: ImmutableLiteral

Implementing class is responsible for constructing the cached value.

Specified by:

createCacheObject in class ImmutableLiteral<RubyString>

isCached

public boolean isCached()

Description copied from class: ImmutableLiteral

Has this object already been cached?

Overrides:

isCached in class ImmutableLiteral<RubyString>

visit

public void visit(IRVisitor visitor)

Overrides:

visit in class Operand

getByteList

public ByteList getByteList()

Specified by:

getByteList in interface StringLiteral

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()

Specified by:

getCodeRange in interface StringLiteral

isTruthyImmediate

public boolean isTruthyImmediate()

Description copied from class: Operand

Returns true if this is an immediate value that will always be considered truthy (true, numbers, etc)

Overrides:

isTruthyImmediate in class Operand

Returns: