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a whole chunk of compile_pattern_match was redundant, axed it -- along with the array/vs/object split

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Jeremy Ashkenas 2010-01-11 22:12:18 -05:00
parent 5e1e949bf6
commit d54fa2f2a1
1 changed files with 9 additions and 11 deletions
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20
lib/coffee_script/nodes.rb
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@ -466,21 +466,19 @@ module CoffeeScript
@variable.array? || @variable.object?
end
# Implementation of recursive pattern matching, when assigning array or
# object literals to a value. Peeks at their properties to assign inner names.
# See: http://wiki.ecmascript.org/doku.php?id=harmony:destructuring
def compile_pattern_match(o)
val_var = o[:scope].free_variable
assigns = ["#{idt}#{val_var} = #{@value.compile(o)};"]
@variable.base.objects.each_with_index do |obj, i|
if @variable.array?
assigns << AssignNode.new(obj, ValueNode.new(Value.new(val_var), [IndexNode.new(Value.new(i.to_s))])).compile(o.merge(:top => true, :as_statement => true))
elsif @variable.object?
obj, i = obj.value, obj.variable.base
assigns << AssignNode.new(obj, ValueNode.new(Value.new(val_var), [AccessorNode.new(Value.new(i.to_s))])).compile(o.merge(:top => true, :as_statement => true))
else
left = obj.compile(o)
o[:scope].find(left) if obj.base.is_a?(Value)
access = @variable.object? ? ".#{i}" : "[#{i}]"
assigns << "#{idt}#{left} = #{val_var}#{access};"
end
obj, i = obj.value, obj.variable.base if @variable.object?
access_class = @variable.array? ? IndexNode : AccessorNode
assigns << AssignNode.new(
obj,
ValueNode.new(Value.new(val_var), [access_class.new(Value.new(i.to_s))])
).compile(o.merge(:top => true, :as_statement => true))
end
write(assigns.join("\n"))
end