diff options
Diffstat (limited to 'test/ruby/test_optimization.rb')
| -rw-r--r-- | test/ruby/test_optimization.rb | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/test/ruby/test_optimization.rb b/test/ruby/test_optimization.rb index f147f9d8c6..499d4e1c7c 100644 --- a/test/ruby/test_optimization.rb +++ b/test/ruby/test_optimization.rb @@ -230,7 +230,7 @@ class TestRubyOptimization < Test::Unit::TestCase assert_equal true, MyObj.new == nil end - def self.tailcall(klass, src, file = nil, path = nil, line = nil) + def self.tailcall(klass, src, file = nil, path = nil, line = nil, tailcall: true) unless file loc, = caller_locations(1, 1) file = loc.path @@ -238,7 +238,7 @@ class TestRubyOptimization < Test::Unit::TestCase end RubyVM::InstructionSequence.new("proc {|_|_.class_eval {#{src}}}", file, (path || file), line, - tailcall_optimization: true, + tailcall_optimization: tailcall, trace_instruction: false) .eval[klass] end @@ -334,6 +334,35 @@ class TestRubyOptimization < Test::Unit::TestCase message(bug12565) {disasm(:add_one_and_two)}) end + def test_tailcall_condition_block + bug = '[ruby-core:78015] [Bug #12905]' + + src = "#{<<-"begin;"}\n#{<<-"end;"}" + begin; + def run(current, final) + if current < final + run(current+1, final) + else + nil + end + end + end; + + obj = Object.new + self.class.tailcall(obj.singleton_class, src, tailcall: false) + e = assert_raise(SystemStackError) { + obj.run(1, Float::INFINITY) + } + level = e.backtrace_locations.size + obj = Object.new + self.class.tailcall(obj.singleton_class, src, tailcall: true) + level *= 2 + mesg = message {"#{bug}: #{$!.backtrace_locations.size} / #{level} stack levels"} + assert_nothing_raised(SystemStackError, mesg) { + obj.run(1, level) + } + end + class Bug10557 def [](_) block_given? |