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more underscore, and removing custom_assign and return from conditional compilation

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Jeremy Ashkenas 2009-12-26 21:55:56 -08:00
parent 097bede5c8
commit d7dd18b476
2 changed files with 24 additions and 27 deletions
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41
examples/underscore.coffee
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@ -93,31 +93,26 @@ _.reduceRight: obj, memo, iterator, context =>
if obj and _.isFunction(obj.filter) then return obj.filter(iterator, context).
results: []
_.each(obj, (value, index, list =>
iterator.call(context, value, index, list) and results.push(value).))
results.push(value) if iterator.call(context, value, index, list).))
results.
#
# # Return all the elements for which a truth test fails.
# _.reject = function(obj, iterator, context) {
# var results = [];
# _.each(obj, function(value, index, list) {
# !iterator.call(context, value, index, list) && results.push(value);
# });
# return results;
# };
#
# # Determine whether all of the elements match a truth test. Delegate to
# # JavaScript 1.6's every(), if it is present.
# _.all = function(obj, iterator, context) {
# iterator = iterator || _.identity;
# if (obj && _.isFunction(obj.every)) return obj.every(iterator, context);
# var result = true;
# _.each(obj, function(value, index, list) {
# if (!(result = result && iterator.call(context, value, index, list))) _.breakLoop();
# });
# return result;
# };
#
# Return all the elements for which a truth test fails.
_.reject: obj, iterator, context =>
results: []
_.each(obj, (value, index, list =>
results.push(value) if not iterator.call(context, value, index, list).))
results.
# Determine whether all of the elements match a truth test. Delegate to
# JavaScript 1.6's every(), if it is present.
_.all: obj, iterator, context =>
iterator ||= _.identity
return obj.every(iterator, context) if obj and _.isFunction(obj.every)
result: true
_.each(obj, (value, index, list =>
_.breakLoop() unless result: result and iterator.call(context, value, index, list).))
result.
# # Determine if at least one element in the object matches a truth test. Use
# # JavaScript 1.6's some(), if it exists.
# _.any = function(obj, iterator, context) {

10
lib/coffee_script/nodes.rb
View file

@ -377,12 +377,11 @@ module CoffeeScript
last = @variable.last.to_s
proto = name[PROTO_ASSIGN, 1]
o = o.merge(:assign => @variable, :last_assign => last, :proto_assign => proto)
postfix = o[:return] ? ";\n#{o[:indent]}return #{name}" : ''
return write("#{name}: #{@value.compile(o)}") if @context == :object
return write("#{name} = #{@value.compile(o)}#{postfix}") if @variable.properties? && !@value.custom_assign?
o[:scope].find(name) unless @variable.properties?
return write(@value.compile(o)) if @value.custom_assign?
write("#{name} = #{@value.compile(o)}#{postfix}")
val = "#{name} = #{@value.compile(o)}"
write(o[:return] && !@value.custom_return? ? "return (#{val})" : val)
end
end
@ -728,8 +727,11 @@ module CoffeeScript
# force sub-else bodies into statement form.
def compile_statement(o)
indent = o[:indent]
cond_o = o.dup
cond_o.delete(:assign)
cond_o.delete(:return)
o[:indent] += TAB
if_part = "if (#{@condition.compile(o)}) {\n#{Expressions.wrap(@body).compile(o)}\n#{indent}}"
if_part = "if (#{@condition.compile(cond_o)}) {\n#{Expressions.wrap(@body).compile(o)}\n#{indent}}"
return if_part unless @else_body
else_part = chain? ?
" else #{@else_body.compile(o.merge(:indent => indent))}" :