org.jruby.ir.operands

Class StringLiteral

java.lang.Object

org.jruby.ir.operands.Operand

org.jruby.ir.operands.StringLiteral

All Implemented Interfaces:

Stringable

public class StringLiteral
extends Operand
implements Stringable

Represents a literal string value. This is not an immutable literal because I can gsub!, for example, and modify the contents of the string. This is not like a Java string.

Field Summary

Fields

Modifier and Type	Field and Description
static StringLiteral	EMPTY_STRING
FrozenString	frozenString

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

EMPTY_ARRAY

Constructor Summary

Constructors

Modifier	Constructor and Description
	StringLiteral(org.jruby.util.ByteList val, int coderange, String file, int line)
	StringLiteral(String s)
protected	StringLiteral(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)
static StringLiteral	decode(IRReaderDecoder d)
void	encode(IRWriterEncoder e)
boolean	equals(Object other)
org.jruby.util.ByteList	getByteList()
int	getCodeRange()
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).
Object	retrieve(ThreadContext context, IRubyObject self, StaticScope currScope, DynamicScope currDynScope, Object[] temp)
String	toString()
void	visit(IRVisitor visitor)

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

canCopyPropagate, getSimplifiedOperand, getValue

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_STRING

public static final StringLiteral EMPTY_STRING

frozenString

public final FrozenString frozenString

Constructor Detail

StringLiteral

public StringLiteral(org.jruby.util.ByteList val,
                     int coderange,
                     String file,
                     int line)

StringLiteral

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

StringLiteral

public StringLiteral(String s)

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 Operand

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.

Specified by:

addUsedVariables in class Operand

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)

Specified by:

cloneForInlining in class Operand

retrieve

public Object retrieve(ThreadContext context,
                       IRubyObject self,
                       StaticScope currScope,
                       DynamicScope currDynScope,
                       Object[] temp)

Overrides:

retrieve in class Operand

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

encode

public void encode(IRWriterEncoder e)

Overrides:

encode in class Operand

decode

public static StringLiteral decode(IRReaderDecoder d)

getCodeRange

public int getCodeRange()