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Issue #621. Added the ability to leave the start and end index off of arrays. list[5..] is now valid CoffeeScript, slicing to the end of the array.

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Jeremy Ashkenas
2010-08-18 21:51:44 -04:00
parent bf6bafa3ac
commit 4ddd65a4c4
6 changed files with 145 additions and 104 deletions
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13
src/nodes.coffee
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@@ -621,10 +621,11 @@ exports.SliceNode = class SliceNode extends BaseNode
super()
compileNode: (o) ->
from = @range.from.compile(o)
to = @range.to.compile(o)
plusPart = if @range.exclusive then '' else ' + 1'
".slice(#{from}, #{to}#{plusPart})"
from = if @range.from then @range.from.compile(o) else '0'
to = if @range.to then @range.to.compile(o) else ''
to += if not to or @range.exclusive then '' else ' + 1'
to = ', ' + to if to
".slice(#{from}#{to})"
#### ObjectNode
@@ -860,8 +861,8 @@ exports.AssignNode = class AssignNode extends BaseNode
l = @variable.properties.length
range = @variable.properties[l - 1].range
plus = if range.exclusive then '' else ' + 1'
from = range.from.compile(o)
to = range.to.compile(o) + ' - ' + from + plus
from = if range.from then range.from.compile(o) else '0'
to = if range.to then range.to.compile(o) + ' - ' + from + plus else "#{name}.length"
val = @value.compile(o)
"#{name}.splice.apply(#{name}, [#{from}, #{to}].concat(#{val}))"