org.jruby.runtime.scope
Class ThreeVarDynamicScope

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

Direct Known Subclasses:

FourVarDynamicScope

public class ThreeVarDynamicScope
extends TwoVarDynamicScope

This is a DynamicScope that supports exactly three variables.

Field Summary

protected IRubyObject

variableValueTwo

Fields inherited from class org.jruby.runtime.scope.TwoVarDynamicScope

variableValueOne

Fields inherited from class org.jruby.runtime.scope.OneVarDynamicScope

variableValueZero

Fields inherited from class org.jruby.runtime.DynamicScope

evalScope, parent, staticScope

Constructor Summary

ThreeVarDynamicScope(StaticScope staticScope)

ThreeVarDynamicScope(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	getValueTwoDepthZeroOrNil(IRubyObject nil) getValueOrNil for index 2, depth 0
void	growIfNeeded()
void	setArgValues(IRubyObject[] values, int size) Set all values which represent 'normal' parameters in a call list to this dynamic scope.
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	setValueTwoDepthZero(IRubyObject value) Set value two in this scope.
java.lang.String	toString(java.lang.StringBuffer buf, java.lang.String indent)

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

getValueOneDepthZeroOrNil, setValueOneDepthZero

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

getValueZeroDepthZeroOrNil, setValueZeroDepthZero

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

getValueThreeDepthZeroOrNil, setValueThreeDepthZero

Methods inherited from class org.jruby.runtime.DynamicScope

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

Methods inherited from class java.lang.Object

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

Field Detail

variableValueTwo

protected IRubyObject variableValueTwo

Constructor Detail

ThreeVarDynamicScope

public ThreeVarDynamicScope(StaticScope staticScope,
                            DynamicScope parent)

ThreeVarDynamicScope

public ThreeVarDynamicScope(StaticScope staticScope)

Method Detail

growIfNeeded

public void growIfNeeded()

Overrides:

growIfNeeded in class TwoVarDynamicScope

cloneScope

public DynamicScope cloneScope()

Overrides:

cloneScope in class TwoVarDynamicScope

getValues

public IRubyObject[] getValues()

Overrides:

getValues in class TwoVarDynamicScope

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 TwoVarDynamicScope

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 OneVarDynamicScope

getValueDepthZeroOrNil

public IRubyObject getValueDepthZeroOrNil(int offset,
                                          IRubyObject nil)

Description copied from class: DynamicScope

getValueOrNil for depth 0

Overrides:

getValueDepthZeroOrNil in class TwoVarDynamicScope

getValueTwoDepthZeroOrNil

public IRubyObject getValueTwoDepthZeroOrNil(IRubyObject nil)

Description copied from class: DynamicScope

getValueOrNil for index 2, depth 0

Overrides:

getValueTwoDepthZeroOrNil 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 TwoVarDynamicScope

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 TwoVarDynamicScope

Parameters:

value - to set

offset - zero-indexed value that represents where variable lives

setValueTwoDepthZero

public IRubyObject setValueTwoDepthZero(IRubyObject value)

Description copied from class: DynamicScope

Set value two in this scope.

Overrides:

setValueTwoDepthZero 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 TwoVarDynamicScope

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

getArgValues

public IRubyObject[] getArgValues()

Description copied from class: DynamicScope

Copy variable values back for ZSuper call.

Overrides:

getArgValues in class TwoVarDynamicScope

toString

public java.lang.String toString(java.lang.StringBuffer buf,
                                 java.lang.String indent)

Overrides:

toString in class TwoVarDynamicScope