Package org.jruby.ir.instructions

Class BuildCompoundStringInstr

java.lang.Object

org.jruby.ir.instructions.Instr

org.jruby.ir.instructions.ResultBaseInstr

org.jruby.ir.instructions.NOperandResultBaseInstr

org.jruby.ir.instructions.BuildCompoundStringInstr

All Implemented Interfaces:

ResultInstr

public class BuildCompoundStringInstr
extends NOperandResultBaseInstr

Field Summary

Fields inherited from class org.jruby.ir.instructions.ResultBaseInstr

result

Fields inherited from class org.jruby.ir.instructions.Instr

EMPTY_OPERANDS

Constructor Summary

Constructors

Constructor	Description
BuildCompoundStringInstr(Variable result, Operand[] pieces, org.jcodings.Encoding encoding, int estimatedSize, StringStyle stringStyle, String file, int line)

Method Summary

Modifier and Type	Method	Description
Instr	clone(CloneInfo ii)	Clone the instruction for use in an inlining context (either when a scope is inlined into another scope, or when a block has to be cloned because its associated call belongs to an inlined scope).
static BuildCompoundStringInstr	decode(IRReaderDecoder d)
void	encode(IRWriterEncoder e)
org.jcodings.Encoding	getEncoding()
String	getFile()
int	getInitialSize()
int	getLine()
Operand[]	getPieces()
Object	interpret(ThreadContext context, StaticScope currScope, DynamicScope currDynScope, IRubyObject self, Object[] temp)
boolean	isChilled()
boolean	isFrozen()
Instr	simplifyInstr(IRManager manager)	This will make an attempt to combine multiple pieces when they are contiguout frozen strings OR immutable literals.
void	visit(IRVisitor visitor)

Methods inherited from class org.jruby.ir.instructions.NOperandResultBaseInstr

getOperands, setOperand

Methods inherited from class org.jruby.ir.instructions.ResultBaseInstr

getResult, updateResult

Methods inherited from class org.jruby.ir.instructions.Instr

canBeDeletedFromScope, canRaiseException, cloneOperands, computeScopeFlags, dumpableFields, getOperation, getUsedVariables, hasSideEffects, interpretAndGetNewIPC, isDead, isDeletable, markDead, renameVars, simplifyOperands, simplifyOperands, toString, toStringNonOperandArgs, transfersControl

Methods inherited from class java.lang.Object

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

Constructor Details

BuildCompoundStringInstr

public BuildCompoundStringInstr(Variable result,
 Operand[] pieces,
 org.jcodings.Encoding encoding,
 int estimatedSize,
 StringStyle stringStyle,
 String file,
 int line)

Method Details

getPieces

public Operand[] getPieces()

getEncoding

public org.jcodings.Encoding getEncoding()

getInitialSize

public int getInitialSize()

clone

public Instr clone(CloneInfo ii)

Description copied from class: Instr

Clone the instruction for use in an inlining context (either when a scope is inlined into another scope, or when a block has to be cloned because its associated call belongs to an inlined scope). This might renaming variables and labels to eliminate naming conflicts. The implementation might vary on the cloning mode.

Specified by:

clone in class Instr

Parameters:

ii - This object manages renaming of variables and labels, handles args and return values.

Returns:

a new instruction that can be used in the target scope.

encode

public void encode(IRWriterEncoder e)

Overrides:

encode in class ResultBaseInstr

decode

public static BuildCompoundStringInstr decode(IRReaderDecoder d)

interpret

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

Overrides:

interpret in class Instr

visit

public void visit(IRVisitor visitor)

Overrides:

visit in class Instr

isFrozen

public boolean isFrozen()

isChilled

public boolean isChilled()

getFile

public String getFile()

getLine

public int getLine()

simplifyInstr

public Instr simplifyInstr(IRManager manager)

This will make an attempt to combine multiple pieces when they are contiguout frozen strings OR immutable literals. It may fail as not all strings can be concatenated together (e.g. mismatched encodings).

Overrides:

simplifyInstr in class Instr

Parameters:

manager - the IR manager

Returns:

the simplified instruction or itself when it cannot be simplified.