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b9007b6c54
This patch contains several ideas:
(1) Disposable inline method cache (IMC) for race-free inline method cache
* Making call-cache (CC) as a RVALUE (GC target object) and allocate new
CC on cache miss.
* This technique allows race-free access from parallel processing
elements like RCU.
(2) Introduce per-Class method cache (pCMC)
* Instead of fixed-size global method cache (GMC), pCMC allows flexible
cache size.
* Caching CCs reduces CC allocation and allow sharing CC's fast-path
between same call-info (CI) call-sites.
(3) Invalidate an inline method cache by invalidating corresponding method
entries (MEs)
* Instead of using class serials, we set "invalidated" flag for method
entry itself to represent cache invalidation.
* Compare with using class serials, the impact of method modification
(add/overwrite/delete) is small.
* Updating class serials invalidate all method caches of the class and
sub-classes.
* Proposed approach only invalidate the method cache of only one ME.
See [Feature #16614] for more details.
64 lines
908 B
Ruby
64 lines
908 B
Ruby
# -*- coding: us-ascii -*-
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# frozen_string_literal: true
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require 'test/unit'
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class TestMethod < Test::Unit::TestCase
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def test_alias
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m0 = Module.new do
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def foo; :M0 end
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end
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m1 = Module.new do
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include m0
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end
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c = Class.new do
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include m1
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alias bar foo
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end
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d = Class.new(c) do
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end
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test = -> do
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d.new.bar
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end
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assert_equal :M0, test[]
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c.class_eval do
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def bar
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:C
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end
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end
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assert_equal :C, test[]
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end
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def test_zsuper
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assert_separately [], <<-EOS
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class C
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private def foo
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:C
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end
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end
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class D < C
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public :foo
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end
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class E < D; end
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class F < E; end
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test = -> do
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F.new().foo
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end
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assert_equal :C, test[]
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class E
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def foo; :E; end
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end
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assert_equal :E, test[]
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EOS
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end
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end
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