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-rw-r--r--spec/rubyspec/language/fixtures/return.rb139
1 files changed, 139 insertions, 0 deletions
diff --git a/spec/rubyspec/language/fixtures/return.rb b/spec/rubyspec/language/fixtures/return.rb
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+++ b/spec/rubyspec/language/fixtures/return.rb
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+module ReturnSpecs
+ class Blocks
+ def yielding_method
+ yield
+ ScratchPad.record :after_yield
+ end
+
+ def enclosing_method
+ yielding_method do
+ ScratchPad.record :before_return
+ return :return_value
+ ScratchPad.record :after_return
+ end
+
+ ScratchPad.record :after_call
+ end
+ end
+
+ class NestedCalls < Blocks
+ def invoking_method(&b)
+ yielding_method(&b)
+ ScratchPad.record :after_invoke
+ end
+
+ def enclosing_method
+ invoking_method do
+ ScratchPad.record :before_return
+ return :return_value
+ ScratchPad.record :after_return
+ end
+ ScratchPad.record :after_invoke
+ end
+ end
+
+ class NestedBlocks < Blocks
+ def enclosing_method
+ yielding_method do
+ yielding_method do
+ ScratchPad.record :before_return
+ return :return_value
+ ScratchPad.record :after_return
+ end
+ ScratchPad.record :after_invoke1
+ end
+ ScratchPad.record :after_invoke2
+ end
+ end
+
+ class SavedInnerBlock
+ def add(&b)
+ @block = b
+ end
+
+ def outer
+ yield
+ @block.call
+ end
+
+ def inner
+ yield
+ end
+
+ def start
+ outer do
+ inner do
+ add do
+ ScratchPad.record :before_return
+ return :return_value
+ end
+ end
+ end
+
+ ScratchPad.record :bottom_of_start
+
+ return false
+ end
+ end
+
+ class ThroughDefineMethod
+ lamb = proc { |x| x.call }
+ define_method :foo, lamb
+
+ def mp(&b); b; end
+
+ def outer
+ pr = mp { return :good }
+
+ foo(pr)
+ return :bad
+ end
+ end
+
+ class DefineMethod
+ lamb = proc { return :good }
+ define_method :foo, lamb
+
+ def outer
+ val = :bad
+
+ # This is tricky, but works. If lamb properly returns, then the
+ # return value will go into val before we run the ensure.
+ #
+ # If lamb's return keeps unwinding incorrectly, val will still
+ # have it's old value.
+ #
+ # We can therefore use val to figure out what happened.
+ begin
+ val = foo()
+ ensure
+ if val != :good
+ return :bad
+ end
+ end
+
+ return val
+ end
+ end
+
+ class MethodWithBlock
+ def method1
+ return [2, 3].inject 0 do |a, b|
+ a + b
+ end
+ nil
+ end
+
+ def get_ary(count, &blk)
+ count.times.to_a do |i|
+ blk.call(i) if blk
+ end
+ end
+
+ def method2
+ return get_ary 3 do |i|
+ end
+ nil
+ end
+ end
+end