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using the new static properties of class definitions in the CoffeeScript compiler -- it's hardly used.

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Jeremy Ashkenas
2010-03-29 21:49:20 -04:00
parent 177ec92c39
commit 326656245a
4 changed files with 83 additions and 81 deletions
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61
src/nodes.coffee
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@@ -400,7 +400,6 @@ exports.CallNode: class CallNode extends BaseNode
meth: "($temp = ${ @variable.source })${ @variable.last }"
"${@prefix()}${meth}.apply($obj, ${ @compile_splat_arguments(o) })"
#### CurryNode
# Binds a context object and a list of arguments to a function,
@@ -426,8 +425,6 @@ exports.CurryNode: class CurryNode extends CallNode
curry: new CodeNode([literal('func'), literal('obj'), literal('args')], Expressions.wrap([curried]))
(new ParentheticalNode(new CallNode(curry, [@meth, @context, literal(@arguments(o))]))).compile o
#### ExtendsNode
# Node to extend an object's prototype with an ancestor object.
@@ -846,26 +843,26 @@ exports.SplatNode: class SplatNode extends BaseNode
if trailings? then "Array.prototype.slice.call($name, $index, ${name}.length - $trailings)" \
else "Array.prototype.slice.call($name, $index)"
# Utility function that converts arbitrary number of elements, mixed with
# splats, to a proper array
SplatNode.compile_mixed_array: (list, o) ->
args: []
i: 0
for arg in list
code: arg.compile o
if not (arg instanceof SplatNode)
prev: args[i - 1]
if i is 1 and prev.substr(0, 1) is '[' and prev.substr(prev.length - 1, 1) is ']'
args[i - 1]: "${prev.substr(0, prev.length - 1)}, $code]"
continue
else if i > 1 and prev.substr(0, 9) is '.concat([' and prev.substr(prev.length - 2, 2) is '])'
args[i - 1]: "${prev.substr(0, prev.length - 2)}, $code])"
continue
else
code: "[$code]"
args.push(if i is 0 then code else ".concat($code)")
i: + 1
args.join('')
# Utility function that converts arbitrary number of elements, mixed with
# splats, to a proper array
@compile_mixed_array: (list, o) ->
args: []
i: 0
for arg in list
code: arg.compile o
if not (arg instanceof SplatNode)
prev: args[i - 1]
if i is 1 and prev.substr(0, 1) is '[' and prev.substr(prev.length - 1, 1) is ']'
args[i - 1]: "${prev.substr(0, prev.length - 1)}, $code]"
continue
else if i > 1 and prev.substr(0, 9) is '.concat([' and prev.substr(prev.length - 2, 2) is '])'
args[i - 1]: "${prev.substr(0, prev.length - 2)}, $code])"
continue
else
code: "[$code]"
args.push(if i is 0 then code else ".concat($code)")
i: + 1
args.join('')
#### WhileNode
@@ -1052,15 +1049,15 @@ exports.ExistenceNode: class ExistenceNode extends BaseNode
compile_node: (o) ->
ExistenceNode.compile_test(o, @expression)
# The meat of the **ExistenceNode** is in this static `compile_test` method
# because other nodes like to check the existence of their variables as well.
# Be careful not to double-evaluate anything.
ExistenceNode.compile_test: (o, variable) ->
[first, second]: [variable, variable]
if variable instanceof CallNode or (variable instanceof ValueNode and variable.has_properties())
[first, second]: variable.compile_reference(o)
[first, second]: [first.compile(o), second.compile(o)]
"(typeof $first !== \"undefined\" && $second !== null)"
# The meat of the **ExistenceNode** is in this static `compile_test` method
# because other nodes like to check the existence of their variables as well.
# Be careful not to double-evaluate anything.
@compile_test: (o, variable) ->
[first, second]: [variable, variable]
if variable instanceof CallNode or (variable instanceof ValueNode and variable.has_properties())
[first, second]: variable.compile_reference(o)
[first, second]: [first.compile(o), second.compile(o)]
"(typeof $first !== \"undefined\" && $second !== null)"
#### ParentheticalNode