Rename Promise#collect to #trace

Author: meh

spec/opal/stdlib/promise/collect_spec.rb renamed to spec/opal/stdlib/promise/trace_spec.rb

@@ -1,20 +1,20 @@
 require 'promise'
 
-describe 'Promise#collect' do
+describe 'Promise#trace' do
   it 'calls the block with all the previous results' do
     x = 42
 
-    Promise.value(1).then { 2 }.then { 3 }.collect {|a, b, c|
+    Promise.value(1).then { 2 }.then { 3 }.trace {|a, b, c|
       x = a + b + c
     }
 
     x.should == 6
   end
 
-  it 'calls the then after the collect' do
+  it 'calls the then after the trace' do
     x = 42
 
-    Promise.value(1).then { 2 }.then { 3 }.collect {|a, b, c|
+    Promise.value(1).then { 2 }.then { 3 }.trace {|a, b, c|
       a + b + c
     }.then { |v| x = v }
 
@@ -26,7 +26,7 @@
 
     Promise.value(1).then {
       Promise.when Promise.value(2), Promise.value(3)
-    }.collect {|a, b|
+    }.trace {|a, b|
       x = a + b[0] + b[1]
     }
 

stdlib/promise.rb

@@ -174,8 +174,8 @@ def always(&block)
   alias finally always
   alias ensure always
 
-  def collect(&block)
-    self ^ Collect.new(block)
+  def trace(&block)
+    self ^ Trace.new(block)
   end
 
   def inspect
@@ -194,7 +194,7 @@ def inspect
     result
   end
 
-  class Collect < self
+  class Trace < self
     def self.it(promise)
       unless promise.realized?
         raise ArgumentError, "the promise hasn't been realized"
@@ -211,7 +211,7 @@ def self.it(promise)
 
     def initialize(block)
       super -> {
-        block.call(*Collect.it(self).reverse)
+        block.call(*Trace.it(self).reverse)
       }
     end
   end