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Re-compiling the core using the new __slice and __splice functions.

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This commit is contained in:
Stan Angeloff
2010-03-21 18:11:44 +02:00
committed by matehat
parent 15217c705e
commit 7d1fbeb708
4 changed files with 95 additions and 33 deletions
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54
src/nodes.coffee
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@@ -308,6 +308,8 @@ exports.ValueNode: class ValueNode extends BaseNode
soaked: false
only: del(o, 'only_first')
op: del(o, 'operation')
splice: del(o, 'splice')
replace: del(o, 'replace')
props: if only then @properties[0...@properties.length - 1] else @properties
baseline: @base.compile o
baseline: "($baseline)" if @base instanceof ObjectNode and @has_properties()
@@ -324,7 +326,11 @@ exports.ValueNode: class ValueNode extends BaseNode
complete: complete + @SOAK + (baseline: + prop.compile(o))
else if prop instanceof SliceNode
o.array: complete
part: prop.compile_slice(o)
if splice
o.replace: replace
part: prop.compile_splice(o)
else
part: prop.compile_slice(o)
baseline = part
complete = part
@last: part
@@ -526,7 +532,7 @@ exports.RangeNode: class RangeNode extends BaseNode
exports.SliceNode: class SliceNode extends BaseNode
type: 'Slice'
code: '''
slice_code: '''
function __slice(array, from, to, exclusive) {
return array.slice(
(from < 0 ? from + array.length : from || 0),
@@ -535,15 +541,39 @@ exports.SliceNode: class SliceNode extends BaseNode
}
'''
splice_code: '''
function __splice(array, from, to, exclusive, replace) {
var _a;
return array.splice.apply(
array,
[_a = (from < 0 ? from + array.length : from || 0), (to < 0 ? to + array.length : to || array.length) + (exclusive ? 0 : 1) - _a].concat(replace)
);
}
'''
constructor: (range) ->
@children: [@range: range]
this
compile_node: (o) ->
throw "'$@type' cannot compile outside of 'ValueNode'"
from: @range.from.compile(o)
to: @range.to.compile(o)
plus_part: if @range.exclusive then '' else ' + 1'
".slice($from, $to$plus_part)"
compile_splice: (o) ->
o.scope.assign('__splice', @splice_code, true) if o.scope?
array: del o, 'array'
replace: del o, 'replace'
from: if @range.from? then @range.from else literal('null')
to: if @range.to? then @range.to else literal('null')
exclusive: if @range.exclusive then 'true' else 'false'
ref: new ValueNode literal('__splice')
call: new CallNode ref, [literal(array), from, to, literal(exclusive), replace]
call.compile(o)
compile_slice: (o) ->
o.scope.assign('__slice', @code, true) if o.scope?
o.scope.assign('__slice', @slice_code, true) if o.scope?
array: del o, 'array'
from: if @range.from? then @range.from else literal('null')
to: if @range.to? then @range.to else literal('null')
@@ -742,14 +772,14 @@ exports.AssignNode: class AssignNode extends BaseNode
# Compile the assignment from an array splice literal, using JavaScript's
# `Array#splice` method.
compile_splice: (o) ->
name: @variable.compile(merge(o, {only_first: true}))
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
val: @value.compile(o)
"${name}.splice.apply($name, [$from, $to].concat($val))"
# 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
# val: @value.compile(o)
# "${name}.splice.apply($name, [$from, $to].concat($val))"
@variable.compile(merge(o, {only_first: true, splice: true, replace: @value}))
#### CodeNode