org.jruby.ir.instructions

Class LineNumberInstr

java.lang.Object

org.jruby.ir.instructions.Instr

org.jruby.ir.instructions.NoOperandInstr

org.jruby.ir.instructions.LineNumberInstr

All Implemented Interfaces:

FixedArityInstr

Direct Known Subclasses:

InlinedLineNumberInstr

public class LineNumberInstr
extends NoOperandInstr
implements FixedArityInstr

Field Summary

Fields

Modifier and Type	Field and Description
boolean	coverage Whether to update coverage data when executing this instruction.
int	lineNumber
boolean	oneshot Whether to disable coverage after the first execution.

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

EMPTY_OPERANDS

Constructor Summary

Constructors

Constructor and Description
LineNumberInstr(int lineNumber)
LineNumberInstr(int lineNumber, int coverageMode)

Method Summary

Modifier and Type	Method and 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 LineNumberInstr	decode(IRReaderDecoder d)
void	encode(IRWriterEncoder e)
int	getLineNumber()
boolean	isCoverage()
boolean	isOneshot()
java.lang.String[]	toStringNonOperandArgs()
void	visit(IRVisitor visitor)

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

getOperands, setOperand

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

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

Methods inherited from class java.lang.Object

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

Field Detail

lineNumber

public final int lineNumber

coverage

public boolean coverage

Whether to update coverage data when executing this instruction. Note this is non-final so that `oneshot_lines` mode can disable coverage.

oneshot

public final boolean oneshot

Whether to disable coverage after the first execution. This allows lightweight "covered or not" coverage that only updates once per line.

Constructor Detail

LineNumberInstr

public LineNumberInstr(int lineNumber,
                       int coverageMode)

LineNumberInstr

public LineNumberInstr(int lineNumber)

Method Detail

getLineNumber

public int getLineNumber()

isCoverage

public boolean isCoverage()

isOneshot

public boolean isOneshot()

toStringNonOperandArgs

public java.lang.String[] toStringNonOperandArgs()

Overrides:

toStringNonOperandArgs in class Instr

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 Instr

decode

public static LineNumberInstr decode(IRReaderDecoder d)

visit

public void visit(IRVisitor visitor)

Overrides:

visit in class Instr