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36b9a37a80
* iseq.c (Init_ISeq): undefine allocator of InstructionSequence, to get rid of segfaults at method call on uninitialized object. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55981 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
255 lines
6.3 KiB
Ruby
255 lines
6.3 KiB
Ruby
require 'test/unit'
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class TestISeq < Test::Unit::TestCase
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ISeq = RubyVM::InstructionSequence
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def test_no_linenum
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bug5894 = '[ruby-dev:45130]'
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assert_normal_exit('p RubyVM::InstructionSequence.compile("1", "mac", "", 0).to_a', bug5894)
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end
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def compile(src, line = nil, opt = nil)
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EnvUtil.suppress_warning do
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ISeq.new(src, __FILE__, __FILE__, line, opt)
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end
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end
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def lines src
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body = compile(src).to_a[13]
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body.find_all{|e| e.kind_of? Integer}
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end
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def test_allocate
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assert_raise(TypeError) {ISeq.allocate}
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end
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def test_to_a_lines
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src = <<-EOS
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p __LINE__ # 1
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p __LINE__ # 2
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# 3
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p __LINE__ # 4
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EOS
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assert_equal [1, 2, 4], lines(src)
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src = <<-EOS
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# 1
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p __LINE__ # 2
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# 3
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p __LINE__ # 4
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# 5
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EOS
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assert_equal [2, 4], lines(src)
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src = <<-EOS
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1 # should be optimized out
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2 # should be optimized out
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p __LINE__ # 3
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p __LINE__ # 4
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5 # should be optimized out
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6 # should be optimized out
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p __LINE__ # 7
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8 # should be optimized out
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9
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EOS
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assert_equal [3, 4, 7, 9], lines(src)
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end
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def test_unsupport_type
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ary = compile("p").to_a
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ary[9] = :foobar
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assert_raise_with_message(TypeError, /:foobar/) {ISeq.load(ary)}
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end if defined?(RubyVM::InstructionSequence.load)
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def test_loaded_cdhash_mark
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iseq = compile(<<-'end;', __LINE__+1)
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def bug(kw)
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case kw
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when "false" then false
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when "true" then true
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when "nil" then nil
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else raise("unhandled argument: #{kw.inspect}")
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end
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end
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end;
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assert_separately([], <<-"end;")
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iseq = #{iseq.to_a.inspect}
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RubyVM::InstructionSequence.load(iseq).eval
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assert_equal(false, bug("false"))
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GC.start
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assert_equal(false, bug("false"))
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end;
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end if defined?(RubyVM::InstructionSequence.load)
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def test_disasm_encoding
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src = "\u{3042} = 1; \u{3042}; \u{3043}"
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asm = compile(src).disasm
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assert_equal(src.encoding, asm.encoding)
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assert_predicate(asm, :valid_encoding?)
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src.encode!(Encoding::Shift_JIS)
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asm = compile(src).disasm
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assert_equal(src.encoding, asm.encoding)
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assert_predicate(asm, :valid_encoding?)
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end
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LINE_BEFORE_METHOD = __LINE__
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def method_test_line_trace
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_a = 1
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_b = 2
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end
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def test_line_trace
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iseq = compile \
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%q{ a = 1
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b = 2
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c = 3
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# d = 4
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e = 5
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# f = 6
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g = 7
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}
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assert_equal([1, 2, 3, 5, 7], iseq.line_trace_all)
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iseq.line_trace_specify(1, true) # line 2
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iseq.line_trace_specify(3, true) # line 5
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result = []
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TracePoint.new(:specified_line){|tp|
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result << tp.lineno
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}.enable{
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iseq.eval
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}
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assert_equal([2, 5], result)
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iseq = ISeq.of(self.class.instance_method(:method_test_line_trace))
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assert_equal([LINE_BEFORE_METHOD + 3, LINE_BEFORE_METHOD + 5], iseq.line_trace_all)
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end if false # TODO: now, it is only for C APIs.
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LINE_OF_HERE = __LINE__
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def test_location
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iseq = ISeq.of(method(:test_location))
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assert_equal(__FILE__, iseq.path)
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assert_match(/#{__FILE__}/, iseq.absolute_path)
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assert_equal("test_location", iseq.label)
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assert_equal("test_location", iseq.base_label)
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assert_equal(LINE_OF_HERE+1, iseq.first_lineno)
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line = __LINE__
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iseq = ISeq.of(Proc.new{})
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assert_equal(__FILE__, iseq.path)
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assert_match(/#{__FILE__}/, iseq.absolute_path)
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assert_equal("test_location", iseq.base_label)
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assert_equal("block in test_location", iseq.label)
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assert_equal(line+1, iseq.first_lineno)
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end
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def test_label_fstring
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c = Class.new{ def foobar() end }
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a, b = eval("# encoding: us-ascii\n'foobar'.freeze"),
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ISeq.of(c.instance_method(:foobar)).label
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assert_same a, b
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end
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def test_disable_opt
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src = "a['foo'] = a['bar']; 'a'.freeze"
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body= compile(src, __LINE__, false).to_a[13]
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body.each{|insn|
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next unless Array === insn
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op = insn.first
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assert(!op.to_s.match(/^opt_/), "#{op}")
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}
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end
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def test_invalid_source
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bug11159 = '[ruby-core:69219] [Bug #11159]'
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assert_raise(TypeError, bug11159) {compile(nil)}
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assert_raise(TypeError, bug11159) {compile(:foo)}
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assert_raise(TypeError, bug11159) {compile(1)}
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end
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def test_frozen_string_literal_compile_option
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$f = 'f'
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line = __LINE__ + 2
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code = <<-'EOS'
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['foo', 'foo', "#{$f}foo", "#{'foo'}"]
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EOS
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s1, s2, s3, s4 = compile(code, line, {frozen_string_literal: true}).eval
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assert_predicate(s1, :frozen?)
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assert_predicate(s2, :frozen?)
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assert_predicate(s3, :frozen?)
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assert_predicate(s4, :frozen?)
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end
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def test_safe_call_chain
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src = "a&.a&.a&.a&.a&.a"
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body = compile(src, __LINE__, {peephole_optimization: true}).to_a[13]
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labels = body.select {|op, arg| op == :branchnil}.map {|op, arg| arg}
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assert_equal(1, labels.uniq.size)
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end
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def test_parent_iseq_mark
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assert_separately([], <<-'end;', timeout: 20)
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->{
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->{
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->{
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eval <<-EOS
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class Segfault
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define_method :segfault do
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x = nil
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GC.disable
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1000.times do |n|
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n.times do
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x = (foo rescue $!).local_variables
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end
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GC.start
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end
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x
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end
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end
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EOS
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}.call
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}.call
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}.call
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at_exit { assert_equal([:n, :x], Segfault.new.segfault.sort) }
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end;
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end
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def test_syntax_error_message
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feature11951 = '[Feature #11951]'
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src, line = <<-'end;', __LINE__+1
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def x@;end
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def y@;end
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end;
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e1 = e2 = nil
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m1 = EnvUtil.verbose_warning do
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e1 = assert_raise(SyntaxError) do
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eval(src, nil, __FILE__, line)
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end
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end
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m2 = EnvUtil.verbose_warning do
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e2 = assert_raise(SyntaxError) do
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ISeq.new(src, __FILE__, __FILE__, line)
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end
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end
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assert_equal([m1, e1.message], [m2, e2.message], feature11951)
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e1, e2 = e1.message.lines
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assert_send([e1, :start_with?, __FILE__])
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assert_send([e2, :start_with?, __FILE__])
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end
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def test_translate_by_object
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assert_separately([], <<-"end;")
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class Object
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def translate
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end
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end
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assert_equal(0, eval("0"))
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end;
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end
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end
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