org.jruby.runtime.scope
Class OneVarDynamicScope

java.lang.Object
  org.jruby.runtime.DynamicScope
      org.jruby.runtime.scope.NoVarsDynamicScope
          org.jruby.runtime.scope.OneVarDynamicScope

Direct Known Subclasses:

TwoVarDynamicScope

public class OneVarDynamicScope
extends NoVarsDynamicScope

This is a DynamicScope that supports exactly three variables.

Field Summary

protected IRubyObject

variableValueZero

Fields inherited from class org.jruby.runtime.DynamicScope

evalScope, parent, staticScope

Constructor Summary

OneVarDynamicScope(StaticScope staticScope)

OneVarDynamicScope(StaticScope staticScope, DynamicScope parent)

Method Summary

DynamicScope	cloneScope()
IRubyObject[]	getArgValues() Copy variable values back for ZSuper call.
IRubyObject	getValue(int offset, int depth) Get value from current scope or one of its captured scopes.
IRubyObject	getValueDepthZeroOrNil(int offset, IRubyObject nil) getValueOrNil for depth 0
IRubyObject	getValueOrNil(int offset, int depth, IRubyObject nil) Variation of getValue that checks for nulls, returning and setting the given value (presumably nil)
IRubyObject[]	getValues()
IRubyObject	getValueZeroDepthZeroOrNil(IRubyObject nil) getValueOrNil for index 0, depth 0
void	growIfNeeded()
void	setArgValues(IRubyObject arg0)
void	setArgValues(IRubyObject[] values, int size) Set all values which represent 'normal' parameters in a call list to this dynamic scope.
void	setEndArgValues(IRubyObject[] values, int index, int size)
IRubyObject	setValue(int offset, IRubyObject value, int depth) Set value in current dynamic scope or one of its captured scopes.
IRubyObject	setValueDepthZero(IRubyObject value, int offset) setValue for depth zero
IRubyObject	setValueZeroDepthZero(IRubyObject value) Set value zero in this scope;

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

getValueOneDepthZeroOrNil, getValueThreeDepthZeroOrNil, getValueTwoDepthZeroOrNil, growIfNeeded, setArgValues, setArgValues, setValueOneDepthZero, setValueThreeDepthZero, setValueTwoDepthZero

Methods inherited from class org.jruby.runtime.DynamicScope

getAllNamesInScope, getBackRef, getEvalScope, getFlipScope, getLastLine, getNextCapturedScope, getNthParentScope, getStaticScope, newDummyScope, newDynamicScope, newDynamicScope, setArgValues, setArgValues, setArgValues, setArgValues, setArgValues, setArgValues, setArgValues, setArgValues, setBackRef, setLastLine, setValue, toString, toString

Methods inherited from class java.lang.Object

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

Field Detail

variableValueZero

protected IRubyObject variableValueZero

Constructor Detail

OneVarDynamicScope

public OneVarDynamicScope(StaticScope staticScope,
                          DynamicScope parent)

OneVarDynamicScope

public OneVarDynamicScope(StaticScope staticScope)

Method Detail

growIfNeeded

public void growIfNeeded()

Overrides:

growIfNeeded in class NoVarsDynamicScope

cloneScope

public DynamicScope cloneScope()

Overrides:

cloneScope in class NoVarsDynamicScope

getValues

public IRubyObject[] getValues()

Overrides:

getValues in class NoVarsDynamicScope

getValue

public IRubyObject getValue(int offset,
                            int depth)

Get value from current scope or one of its captured scopes. FIXME: block variables are not getting primed to nil so we need to null check those until we prime them properly. Also add assert back in.

Overrides:

getValue in class NoVarsDynamicScope

Parameters:

offset - zero-indexed value that represents where variable lives

depth - how many captured scopes down this variable should be set

Returns:

the value here

getValueOrNil

public IRubyObject getValueOrNil(int offset,
                                 int depth,
                                 IRubyObject nil)

Variation of getValue that checks for nulls, returning and setting the given value (presumably nil)

Overrides:

getValueOrNil in class NoVarsDynamicScope

getValueDepthZeroOrNil

public IRubyObject getValueDepthZeroOrNil(int offset,
                                          IRubyObject nil)

Description copied from class: DynamicScope

getValueOrNil for depth 0

Overrides:

getValueDepthZeroOrNil in class NoVarsDynamicScope

getValueZeroDepthZeroOrNil

public IRubyObject getValueZeroDepthZeroOrNil(IRubyObject nil)

Description copied from class: DynamicScope

getValueOrNil for index 0, depth 0

Overrides:

getValueZeroDepthZeroOrNil in class NoVarsDynamicScope

setValue

public IRubyObject setValue(int offset,
                            IRubyObject value,
                            int depth)

Set value in current dynamic scope or one of its captured scopes.

Overrides:

setValue in class NoVarsDynamicScope

Parameters:

offset - zero-indexed value that represents where variable lives

value - to set

depth - how many captured scopes down this variable should be set

setValueDepthZero

public IRubyObject setValueDepthZero(IRubyObject value,
                                     int offset)

Description copied from class: DynamicScope

setValue for depth zero

Overrides:

setValueDepthZero in class NoVarsDynamicScope

Parameters:

value - to set

offset - zero-indexed value that represents where variable lives

setValueZeroDepthZero

public IRubyObject setValueZeroDepthZero(IRubyObject value)

Description copied from class: DynamicScope

Set value zero in this scope;

Overrides:

setValueZeroDepthZero in class NoVarsDynamicScope

setArgValues

public void setArgValues(IRubyObject[] values,
                         int size)

Set all values which represent 'normal' parameters in a call list to this dynamic scope. Function calls bind to local scopes by assuming that the indexes or the arg list correspond to that of the local scope (plus 2 since $_ and $~ always take the first two slots). We pass in a second argument because we sometimes get more values than we are expecting. The rest get compacted by original caller into rest args.

Overrides:

setArgValues in class NoVarsDynamicScope

Parameters:

values - up to size specified to be mapped as ordinary parm values

size - is the number of values to assign as ordinary parm values

setArgValues

public void setArgValues(IRubyObject arg0)

Overrides:

setArgValues in class NoVarsDynamicScope

setEndArgValues

public void setEndArgValues(IRubyObject[] values,
                            int index,
                            int size)

Overrides:

setEndArgValues in class NoVarsDynamicScope

Parameters:

values - group where last n(size) values are used

index - index in the dynamic scope to start setting these values

size - which of the last size arguments of values parameter to set

getArgValues

public IRubyObject[] getArgValues()

Description copied from class: DynamicScope

Copy variable values back for ZSuper call.

Overrides:

getArgValues in class NoVarsDynamicScope