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Enabling bound functions as static members of classes... Issue #627

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This commit is contained in:
Jeremy Ashkenas
2010-08-17 21:07:36 -04:00
parent f41ca2e5e8
commit 1b05cd81f0
3 changed files with 37 additions and 18 deletions
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24
src/nodes.coffee
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@@ -740,12 +740,15 @@ exports.ClassNode = class ClassNode extends BaseNode
constructor = func
continue
if func instanceof CodeNode and func.bound
func.bound = false
constScope or= new Scope(o.scope, constructor.body, constructor)
me or= constScope.freeVariable()
pname = pvar.compile(o)
constructor.body.push new ReturnNode literal 'this' if constructor.body.empty()
constructor.body.unshift literal "this.#{pname} = function(){ return #{className}.prototype.#{pname}.apply(#{me}, arguments); }"
if prop.context is 'this'
func.context = className
else
func.bound = false
constScope or= new Scope(o.scope, constructor.body, constructor)
me or= constScope.freeVariable()
pname = pvar.compile(o)
constructor.body.push new ReturnNode literal 'this' if constructor.body.empty()
constructor.body.unshift literal "this.#{pname} = function(){ return #{className}.prototype.#{pname}.apply(#{me}, arguments); }"
if pvar
access = if prop.context is 'this' then pvar.base.properties[0] else new AccessorNode(pvar, 'prototype')
val = new ValueNode(@variable, [access])
@@ -874,9 +877,10 @@ exports.CodeNode = class CodeNode extends BaseNode
constructor: (@params, @body, tag) ->
super()
@params or= []
@body or= new Expressions
@bound = tag is 'boundfunc'
@params or= []
@body or= new Expressions
@bound = tag is 'boundfunc'
@context = 'this' if @bound
# Compilation creates a new scope unless explicitly asked to share with the
# outer scope. Handles splat parameters in the parameter list by peeking at
@@ -918,7 +922,7 @@ exports.CodeNode = class CodeNode extends BaseNode
(o.scope.parameter(param)) for param in params
code = if @body.expressions.length then "\n#{ @body.compileWithDeclarations(o) }\n" else ''
func = "function(#{ params.join(', ') }) {#{code}#{ code and @tab }}"
return "#{utility('bind')}(#{func}, this)" if @bound
return "#{utility('bind')}(#{func}, #{@context})" if @bound
if top then "(#{func})" else func
topSensitive: ->