org.jruby.runtime.scope

Class DummyDynamicScope

java.lang.Object

org.jruby.runtime.DynamicScope

org.jruby.runtime.scope.NoVarsDynamicScope

org.jruby.runtime.scope.DummyDynamicScope

public class DummyDynamicScope
extends NoVarsDynamicScope

This is a DynamicScope that does not support any variables. It differs from NoVarsDynamicScope in that it has hard failures for "backref" and "lastline" accesses, since in the JRuby 1.3 cycle it was discovered that threads were sharing a single dummyscope while still setting per-call backrefs. The hard errors here are an attempt to catch such situations in the future, before the optimizing compiler work makes such determinations in advance.

Field Summary

Fields

Modifier and Type	Field and Description
private static java.lang.String	GROW_ERROR
private static int	SIZE

Fields inherited from class org.jruby.runtime.DynamicScope

evalScope, parent, staticScope

Constructor Summary

Constructors

Constructor and Description
DummyDynamicScope(StaticScope staticScope)
DummyDynamicScope(StaticScope staticScope, DynamicScope parent)

Method Summary

Modifier and Type	Method and Description
DynamicScope	cloneScope()
void	growIfNeeded()
protected void	growIfNeeded(int size, java.lang.String message)

Methods inherited from class org.jruby.runtime.scope.NoVarsDynamicScope

getArgValues, getValue, getValueDepthZeroOrNil, getValueOneDepthZeroOrNil, getValueOrNil, getValues, getValueThreeDepthZeroOrNil, getValueTwoDepthZeroOrNil, getValueZeroDepthZeroOrNil, setArgValues, setArgValues, setArgValues, setArgValues, setEndArgValues, setValue, setValueDepthZero, setValueOneDepthZero, setValueThreeDepthZero, setValueTwoDepthZero, setValueZeroDepthZero

Methods inherited from class org.jruby.runtime.DynamicScope

getAllNamesInScope, getEvalScope, getFlipScope, getNextCapturedScope, getNthParentScope, getStaticScope, newDummyScope, newDynamicScope, newDynamicScope, setArgValues, setArgValues, setArgValues, setArgValues, setArgValues, setArgValues, setArgValues, setArgValues, setValue, toString, toString

Methods inherited from class java.lang.Object

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

Field Detail

SIZE

private static final int SIZE

See Also:

Constant Field Values

GROW_ERROR

private static final java.lang.String GROW_ERROR

See Also:

Constant Field Values

Constructor Detail

DummyDynamicScope

public DummyDynamicScope(StaticScope staticScope,
                         DynamicScope parent)

DummyDynamicScope

public DummyDynamicScope(StaticScope staticScope)

Method Detail

growIfNeeded

public void growIfNeeded()

Overrides:

growIfNeeded in class NoVarsDynamicScope

growIfNeeded

protected void growIfNeeded(int size,
                            java.lang.String message)

Overrides:

growIfNeeded in class NoVarsDynamicScope

cloneScope

public DynamicScope cloneScope()

Overrides:

cloneScope in class NoVarsDynamicScope