1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936
|
# frozen_string_literal: false
require 'test/unit'
require 'objspace'
class TestRubyOptimization < Test::Unit::TestCase
def assert_redefine_method(klass, method, code, msg = nil)
assert_separately([], "#{<<-"begin;"}\n#{<<~"end;"}")
begin;
class #{klass}
undef #{method}
def #{method}(*args)
args[0]
end
end
#{code}
end;
end
def disasm(name)
RubyVM::InstructionSequence.of(method(name)).disasm
end
def test_fixnum_plus
assert_equal 21, 10 + 11
assert_redefine_method('Integer', '+', 'assert_equal 11, 10 + 11')
end
def test_fixnum_minus
assert_equal 5, 8 - 3
assert_redefine_method('Integer', '-', 'assert_equal 3, 8 - 3')
end
def test_fixnum_mul
assert_equal 15, 3 * 5
assert_redefine_method('Integer', '*', 'assert_equal 5, 3 * 5')
end
def test_fixnum_div
assert_equal 3, 15 / 5
assert_redefine_method('Integer', '/', 'assert_equal 5, 15 / 5')
end
def test_fixnum_mod
assert_equal 1, 8 % 7
assert_redefine_method('Integer', '%', 'assert_equal 7, 8 % 7')
end
def test_fixnum_lt
assert_equal true, 1 < 2
assert_redefine_method('Integer', '<', 'assert_equal 2, 1 < 2')
end
def test_fixnum_le
assert_equal true, 1 <= 2
assert_redefine_method('Integer', '<=', 'assert_equal 2, 1 <= 2')
end
def test_fixnum_gt
assert_equal false, 1 > 2
assert_redefine_method('Integer', '>', 'assert_equal 2, 1 > 2')
end
def test_fixnum_ge
assert_equal false, 1 >= 2
assert_redefine_method('Integer', '>=', 'assert_equal 2, 1 >= 2')
end
def test_float_plus
assert_equal 4.0, 2.0 + 2.0
assert_redefine_method('Float', '+', 'assert_equal 2.0, 2.0 + 2.0')
end
def test_float_minus
assert_equal 4.0, 2.0 + 2.0
assert_redefine_method('Float', '+', 'assert_equal 2.0, 2.0 + 2.0')
end
def test_float_mul
assert_equal 29.25, 4.5 * 6.5
assert_redefine_method('Float', '*', 'assert_equal 6.5, 4.5 * 6.5')
end
def test_float_div
assert_in_delta 0.63063063063063063, 4.2 / 6.66
assert_redefine_method('Float', '/', 'assert_equal 6.66, 4.2 / 6.66', "[Bug #9238]")
end
def test_float_lt
assert_equal true, 1.1 < 2.2
assert_redefine_method('Float', '<', 'assert_equal 2.2, 1.1 < 2.2')
end
def test_float_le
assert_equal true, 1.1 <= 2.2
assert_redefine_method('Float', '<=', 'assert_equal 2.2, 1.1 <= 2.2')
end
def test_float_gt
assert_equal false, 1.1 > 2.2
assert_redefine_method('Float', '>', 'assert_equal 2.2, 1.1 > 2.2')
end
def test_float_ge
assert_equal false, 1.1 >= 2.2
assert_redefine_method('Float', '>=', 'assert_equal 2.2, 1.1 >= 2.2')
end
def test_string_length
assert_equal 6, "string".length
assert_redefine_method('String', 'length', 'assert_nil "string".length')
end
def test_string_size
assert_equal 6, "string".size
assert_redefine_method('String', 'size', 'assert_nil "string".size')
end
def test_string_empty?
assert_equal true, "".empty?
assert_equal false, "string".empty?
assert_redefine_method('String', 'empty?', 'assert_nil "string".empty?')
end
def test_string_plus
assert_equal "", "" + ""
assert_equal "x", "x" + ""
assert_equal "x", "" + "x"
assert_equal "ab", "a" + "b"
assert_redefine_method('String', '+', 'assert_equal "b", "a" + "b"')
end
def test_string_succ
assert_equal 'b', 'a'.succ
assert_equal 'B', 'A'.succ
end
def test_string_format
assert_equal '2', '%d' % 2
assert_redefine_method('String', '%', 'assert_equal 2, "%d" % 2')
end
def test_string_freeze
assert_equal "foo", "foo".freeze
assert_equal "foo".freeze.object_id, "foo".freeze.object_id
assert_redefine_method('String', 'freeze', 'assert_nil "foo".freeze')
end
def test_string_uminus
assert_same "foo".freeze, -"foo"
assert_redefine_method('String', '-@', 'assert_nil(-"foo")')
end
def test_array_min
assert_equal 1, [1, 2, 4].min
assert_redefine_method('Array', 'min', 'assert_nil([1, 2, 4].min)')
assert_redefine_method('Array', 'min', 'assert_nil([1 + 0, 2, 4].min)')
end
def test_array_max
assert_equal 4, [1, 2, 4].max
assert_redefine_method('Array', 'max', 'assert_nil([1, 2, 4].max)')
assert_redefine_method('Array', 'max', 'assert_nil([1 + 0, 2, 4].max)')
end
def test_trace_optimized_methods
bug14870 = "[ruby-core:87638]"
expected = [:-@, :max, :min, :+, :-, :*, :/, :%, :==, :<, :<=, :>, :>=, :<<,
:&, :|, :[], :[]=, :length, :empty?, :nil?, :succ, :!, :=~]
[:c_call, :c_return].each do |type|
methods = []
tp = TracePoint.new(type) { |tp| methods << tp.method_id }
tp.enable do
x = "a"; x = -x
[1].max
[1].min
x = 42 + 2
x = 42 - 2
x = 42 * 2
x = 42 / 2
x = 42 % 2
y = x == 42
y = x < 42
y = x <= 42
y = x > 42
y = x >= 42
x = x << 1
x = x & 1
x = x | 1
x = []; x[1]
x[1] = 2
x.length
x.empty?
x.nil?
x = 1; x.succ
!x
x = 'a'; x =~ /a/
x = y
end
assert_equal(expected, methods, bug14870)
end
methods = []
tp = TracePoint.new(:c_call, :c_return) { |tp| methods << tp.method_id }
tp.enable do
x = 1
x != 42
end
assert_equal([:!=, :==, :==, :!=], methods, bug14870)
end
def test_string_freeze_saves_memory
n = 16384
data = '.'.freeze
r, w = IO.pipe
w.write data
s = r.readpartial(n, '')
assert_operator ObjectSpace.memsize_of(s), :>=, n,
'IO buffer NOT resized prematurely because will likely be reused'
s.freeze
assert_equal ObjectSpace.memsize_of(data), ObjectSpace.memsize_of(s),
'buffer resized on freeze since it cannot be written to again'
ensure
r.close if r
w.close if w
end
def test_string_eq_neq
%w(== !=).each do |m|
assert_redefine_method('String', m, <<-end)
assert_equal :b, ("a" #{m} "b").to_sym
b = 'b'
assert_equal :b, ("a" #{m} b).to_sym
assert_equal :b, (b #{m} "b").to_sym
end
end
end
def test_string_ltlt
assert_equal "", "" << ""
assert_equal "x", "x" << ""
assert_equal "x", "" << "x"
assert_equal "ab", "a" << "b"
assert_redefine_method('String', '<<', 'assert_equal "b", "a" << "b"')
end
def test_fixnum_and
assert_equal 1, 1&3
assert_redefine_method('Integer', '&', 'assert_equal 3, 1&3')
end
def test_fixnum_or
assert_equal 3, 1|3
assert_redefine_method('Integer', '|', 'assert_equal 1, 3|1')
end
def test_array_plus
assert_equal [1,2], [1]+[2]
assert_redefine_method('Array', '+', 'assert_equal [2], [1]+[2]')
end
def test_array_minus
assert_equal [2], [1,2] - [1]
assert_redefine_method('Array', '-', 'assert_equal [1], [1,2]-[1]')
end
def test_array_length
assert_equal 0, [].length
assert_equal 3, [1,2,3].length
assert_redefine_method('Array', 'length', 'assert_nil([].length); assert_nil([1,2,3].length)')
end
def test_array_empty?
assert_equal true, [].empty?
assert_equal false, [1,2,3].empty?
assert_redefine_method('Array', 'empty?', 'assert_nil([].empty?); assert_nil([1,2,3].empty?)')
end
def test_hash_length
assert_equal 0, {}.length
assert_equal 1, {1=>1}.length
assert_redefine_method('Hash', 'length', 'assert_nil({}.length); assert_nil({1=>1}.length)')
end
def test_hash_empty?
assert_equal true, {}.empty?
assert_equal false, {1=>1}.empty?
assert_redefine_method('Hash', 'empty?', 'assert_nil({}.empty?); assert_nil({1=>1}.empty?)')
end
def test_hash_aref_with
h = { "foo" => 1 }
assert_equal 1, h["foo"]
assert_redefine_method('Hash', '[]', "#{<<-"begin;"}\n#{<<~"end;"}")
begin;
h = { "foo" => 1 }
assert_equal "foo", h["foo"]
end;
end
def test_hash_aset_with
h = {}
assert_equal 1, h["foo"] = 1
assert_redefine_method('Hash', '[]=', "#{<<-"begin;"}\n#{<<~"end;"}")
begin;
h = {}
assert_equal 1, h["foo"] = 1, "assignment always returns value set"
assert_nil h["foo"]
end;
end
class MyObj
def ==(other)
true
end
end
def test_eq
assert_equal true, nil == nil
assert_equal true, 1 == 1
assert_equal true, 'string' == 'string'
assert_equal true, 1 == MyObj.new
assert_equal false, nil == MyObj.new
assert_equal true, MyObj.new == 1
assert_equal true, MyObj.new == nil
end
def self.tailcall(klass, src, file = nil, path = nil, line = nil, tailcall: true)
unless file
loc, = caller_locations(1, 1)
file = loc.path
line ||= loc.lineno + 1
end
RubyVM::InstructionSequence.new("proc {|_|_.class_eval {#{src}}}",
file, (path || file), line,
tailcall_optimization: tailcall,
trace_instruction: false)
.eval[klass]
end
def tailcall(*args)
self.class.tailcall(singleton_class, *args)
end
def test_tailcall
bug4082 = '[ruby-core:33289]'
tailcall("#{<<-"begin;"}\n#{<<~"end;"}")
begin;
def fact_helper(n, res)
if n == 1
res
else
fact_helper(n - 1, n * res)
end
end
def fact(n)
fact_helper(n, 1)
end
end;
assert_equal(9131, fact(3000).to_s.size, message(bug4082) {disasm(:fact_helper)})
end
def test_tailcall_with_block
bug6901 = '[ruby-dev:46065]'
tailcall("#{<<-"begin;"}\n#{<<~"end;"}")
begin;
def identity(val)
val
end
def delay
-> {
identity(yield)
}
end
end;
assert_equal(123, delay { 123 }.call, message(bug6901) {disasm(:delay)})
end
def just_yield
yield
end
def test_tailcall_inhibited_by_block
tailcall("#{<<-"begin;"}\n#{<<~"end;"}")
begin;
def yield_result
just_yield {:ok}
end
end;
assert_equal(:ok, yield_result, message {disasm(:yield_result)})
end
def do_raise
raise "should be rescued"
end
def errinfo
$!
end
def test_tailcall_inhibited_by_rescue
bug12082 = '[ruby-core:73871] [Bug #12082]'
EnvUtil.suppress_warning {tailcall("#{<<-"begin;"}\n#{<<~"end;"}")}
begin;
def to_be_rescued
return do_raise
1 + 2
rescue
errinfo
end
end;
result = assert_nothing_raised(RuntimeError, message(bug12082) {disasm(:to_be_rescued)}) {
to_be_rescued
}
assert_instance_of(RuntimeError, result, bug12082)
assert_equal("should be rescued", result.message, bug12082)
end
def test_tailcall_symbol_block_arg
bug12565 = '[ruby-core:46065]'
tailcall("#{<<-"begin;"}\n#{<<~"end;"}")
begin;
def apply_one_and_two(&block)
yield(1, 2)
end
def add_one_and_two
apply_one_and_two(&:+)
end
end;
assert_equal(3, add_one_and_two,
message(bug12565) {disasm(:add_one_and_two)})
end
def test_tailcall_interrupted_by_sigint
bug12576 = 'ruby-core:76327'
script = "#{<<-"begin;"}\n#{<<~'end;'}"
begin;
RubyVM::InstructionSequence.compile_option = {
:tailcall_optimization => true,
:trace_instruction => false
}
eval "#{<<~"begin;"}\n#{<<~'end;1'}"
begin;
def foo
foo
end
puts("start")
STDOUT.flush
foo
end;1
end;
status, _err = EnvUtil.invoke_ruby([], "", true, true, **{}) {
|in_p, out_p, err_p, pid|
in_p.write(script)
in_p.close
out_p.gets
sig = :INT
begin
Process.kill(sig, pid)
Timeout.timeout(1) do
*, stat = Process.wait2(pid)
[stat, err_p.read]
end
rescue Timeout::Error
if sig == :INT
sig = :KILL
retry
else
raise
end
end
}
assert_not_equal("SEGV", Signal.signame(status.termsig || 0), bug12576)
end unless /mswin|mingw/ =~ RUBY_PLATFORM
def test_tailcall_condition_block
bug = '[ruby-core:78015] [Bug #12905]'
src = "#{<<-"begin;"}\n#{<<~"end;"}", __FILE__, nil, __LINE__+1
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
def test_tailcall_not_to_grow_stack
skip 'currently JIT-ed code always creates a new stack frame' if defined?(RubyVM::MJIT) && RubyVM::MJIT.enabled?
bug16161 = '[ruby-core:94881]'
tailcall("#{<<-"begin;"}\n#{<<~"end;"}")
begin;
def foo(n)
return :ok if n < 1
foo(n - 1)
end
end;
assert_nothing_raised(SystemStackError, bug16161) do
assert_equal(:ok, foo(1_000_000), bug16161)
end
end
class Bug10557
def [](_)
block_given?
end
def []=(_, _)
block_given?
end
end
def test_block_given_aset_aref
bug10557 = '[ruby-core:66595]'
assert_equal(true, Bug10557.new.[](nil){}, bug10557)
assert_equal(true, Bug10557.new.[](0){}, bug10557)
assert_equal(true, Bug10557.new.[](false){}, bug10557)
assert_equal(true, Bug10557.new.[](''){}, bug10557)
assert_equal(true, Bug10557.new.[]=(nil, 1){}, bug10557)
assert_equal(true, Bug10557.new.[]=(0, 1){}, bug10557)
assert_equal(true, Bug10557.new.[]=(false, 1){}, bug10557)
assert_equal(true, Bug10557.new.[]=('', 1){}, bug10557)
end
def test_string_freeze_block
assert_separately([], "#{<<-"begin;"}\n#{<<~"end;"}")
begin;
class String
undef freeze
def freeze
block_given?
end
end
assert_equal(true, "block".freeze {})
assert_equal(false, "block".freeze)
end;
end
def test_opt_case_dispatch
code = "#{<<-"begin;"}\n#{<<~"end;"}"
begin;
case foo
when "foo" then :foo
when true then true
when false then false
when :sym then :sym
when 6 then :fix
when nil then nil
when 0.1 then :float
when 0xffffffffffffffff then :big
else
:nomatch
end
end;
check = {
'foo' => :foo,
true => true,
false => false,
:sym => :sym,
6 => :fix,
nil => nil,
0.1 => :float,
0xffffffffffffffff => :big,
}
iseq = RubyVM::InstructionSequence.compile(code)
assert_match %r{\bopt_case_dispatch\b}, iseq.disasm
check.each do |foo, expect|
assert_equal expect, eval("foo = #{foo.inspect}\n#{code}")
end
assert_equal :nomatch, eval("foo = :blah\n#{code}")
check.each do |foo, _|
klass = foo.class.to_s
assert_separately([], "#{<<~"begin;"}\n#{<<~"end;"}")
begin;
class #{klass}
undef ===
def ===(*args)
false
end
end
foo = #{foo.inspect}
ret = #{code}
assert_equal :nomatch, ret, foo.inspect
end;
end
end
def test_eqq
[ nil, true, false, 0.1, :sym, 'str', 0xffffffffffffffff ].each do |v|
k = v.class.to_s
assert_redefine_method(k, '===', "assert_equal(#{v.inspect} === 0, 0)")
end
end
def test_opt_case_dispatch_inf
inf = 1.0/0.0
result = case inf
when 1 then 1
when 0 then 0
else
inf.to_i rescue nil
end
assert_nil result, '[ruby-dev:49423] [Bug #11804]'
end
def test_nil_safe_conditional_assign
bug11816 = '[ruby-core:74993] [Bug #11816]'
assert_ruby_status([], 'nil&.foo &&= false', bug11816)
end
def test_peephole_string_literal_range
code = "#{<<~"begin;"}\n#{<<~"end;"}"
begin;
case ver
when "2.0.0".."2.3.2" then :foo
when "1.8.0"..."1.8.8" then :bar
end
end;
[ true, false ].each do |opt|
iseq = RubyVM::InstructionSequence.compile(code,
frozen_string_literal: opt)
insn = iseq.disasm
assert_match %r{putobject\s+#{Regexp.quote('"1.8.0"..."1.8.8"')}}, insn
assert_match %r{putobject\s+#{Regexp.quote('"2.0.0".."2.3.2"')}}, insn
assert_no_match(/putstring/, insn)
assert_no_match(/newrange/, insn)
end
end
def test_peephole_dstr
code = "#{<<~'begin;'}\n#{<<~'end;'}"
begin;
exp = -'a'
z = 'a'
[exp, -"#{z}"]
end;
[ false, true ].each do |fsl|
iseq = RubyVM::InstructionSequence.compile(code,
frozen_string_literal: fsl)
assert_same(*iseq.eval,
"[ruby-core:85542] [Bug #14475] fsl: #{fsl}")
end
end
def test_branch_condition_backquote
bug = '[ruby-core:80740] [Bug #13444] redefined backquote should be called'
class << self
def `(s)
@q = s
@r
end
end
@q = nil
@r = nil
assert_equal("bar", ("bar" unless `foo`), bug)
assert_equal("foo", @q, bug)
@q = nil
@r = true
assert_equal("bar", ("bar" if `foo`), bug)
assert_equal("foo", @q, bug)
@q = nil
@r = "z"
assert_equal("bar", ("bar" if `foo#{@r}`))
assert_equal("fooz", @q, bug)
end
def test_branch_condition_def
bug = '[ruby-core:80740] [Bug #13444] method should be defined'
c = Class.new do
raise "bug" unless def t;:ok;end
end
assert_nothing_raised(NoMethodError, bug) do
assert_equal(:ok, c.new.t)
end
end
def test_branch_condition_defs
bug = '[ruby-core:80740] [Bug #13444] singleton method should be defined'
raise "bug" unless def self.t;:ok;end
assert_nothing_raised(NameError, bug) do
assert_equal(:ok, t)
end
end
def test_retry_label_in_unreachable_chunk
bug = '[ruby-core:81272] [Bug #13578]'
assert_valid_syntax("#{<<-"begin;"}\n#{<<-"end;"}", bug)
begin;
def t; if false; case 42; when s {}; end; end; end
end;
end
def bptest_yield &b
yield
end
def bptest_yield_pass &b
bptest_yield(&b)
end
def bptest_bp_value &b
b
end
def bptest_bp_pass_bp_value &b
bptest_bp_value(&b)
end
def bptest_binding &b
binding
end
def bptest_set &b
b = Proc.new{2}
end
def test_block_parameter
assert_equal(1, bptest_yield{1})
assert_equal(1, bptest_yield_pass{1})
assert_equal(1, send(:bptest_yield){1})
assert_equal(Proc, bptest_bp_value{}.class)
assert_equal nil, bptest_bp_value
assert_equal(Proc, bptest_bp_pass_bp_value{}.class)
assert_equal nil, bptest_bp_pass_bp_value
assert_equal Proc, bptest_binding{}.local_variable_get(:b).class
assert_equal 2, bptest_set{1}.call
end
def test_block_parameter_should_not_create_objects
assert_separately [], <<-END
def foo &b
end
h1 = {}; h2 = {}
ObjectSpace.count_objects(h1) # rehearsal
GC.start; GC.disable # to disable GC while foo{}
ObjectSpace.count_objects(h1)
foo{}
ObjectSpace.count_objects(h2)
assert_equal 0, h2[:T_DATA] - h1[:T_DATA] # Proc is T_DATA
END
end
def test_peephole_optimization_without_trace
assert_separately [], <<-END
RubyVM::InstructionSequence.compile_option = {trace_instruction: false}
eval "def foo; 1.times{|(a), &b| nil && a}; end"
END
end
def test_clear_unreachable_keyword_args
assert_separately [], <<-END, timeout: 60
script = <<-EOS
if true
else
foo(k1:1)
end
EOS
GC.stress = true
30.times{
RubyVM::InstructionSequence.compile(script)
}
END
end
def test_callinfo_unreachable_path
assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
begin;
iseq = RubyVM::InstructionSequence.compile("if false; foo(bar: :baz); else :ok end")
bin = iseq.to_binary
iseq = RubyVM::InstructionSequence.load_from_binary(bin)
assert_instance_of(RubyVM::InstructionSequence, iseq)
assert_equal(:ok, iseq.eval)
end;
end
def test_side_effect_in_popped_splat
bug = '[ruby-core:84340] [Bug #14201]'
eval("{**(bug = nil; {})};42")
assert_nil(bug)
bug = '[ruby-core:85486] [Bug #14459]'
h = {}
assert_equal(bug, eval('{ok: 42, **h}; bug'))
assert_equal(:ok, eval('{ok: bug = :ok, **h}; bug'))
assert_empty(h)
end
def test_overwritten_blockparam
obj = Object.new
def obj.a(&block)
block = 1
return :ok if block
:ng
end
assert_equal(:ok, obj.a())
end
def test_blockparam_in_rescue
obj = Object.new
def obj.foo(&b)
raise
rescue
b.call
end
result = nil
assert_equal(42, obj.foo {result = 42})
assert_equal(42, result)
end
def test_unconditional_branch_to_leave_block
assert_valid_syntax("#{<<~"begin;"}\n#{<<~'end;'}")
begin;
tap {true || tap {}}
end;
end
def test_jump_elimination_with_optimized_out_block
x = Object.new
def x.bug(obj)
if obj || obj
obj = obj
else
raise "[ruby-core:87830] [Bug #14897]"
end
obj
end
assert_equal(:ok, x.bug(:ok))
end
def test_jump_elimination_with_optimized_out_block_2
x = Object.new
def x.bug
a = "aaa"
ok = :NG
if a == "bbb" || a == "ccc" then
a = a
else
ok = :ok
end
ok
end
assert_equal(:ok, x.bug)
end
def test_peephole_jump_after_newarray
i = 0
%w(1) || 2 while (i += 1) < 100
assert_equal(100, i)
end
def test_optimized_empty_ensure
assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}", timeout: 10)
begin;
assert_raise(RuntimeError) {
begin raise ensure nil if nil end
}
end;
end
def test_optimized_rescue
assert_in_out_err("", "#{<<~"begin;"}\n#{<<~'end;'}", [], /END \(RuntimeError\)/)
begin;
if false
begin
require "some_mad_stuff"
rescue LoadError
puts "no mad stuff loaded"
end
end
raise "END"
end;
end
class Objtostring
end
def test_objtostring
assert_raise(NoMethodError){"#{BasicObject.new}"}
assert_redefine_method('Symbol', 'to_s', <<-'end')
assert_match %r{\A#<Symbol:0x[0-9a-f]+>\z}, "#{:foo}"
end
assert_redefine_method('NilClass', 'to_s', <<-'end')
assert_match %r{\A#<NilClass:0x[0-9a-f]+>\z}, "#{nil}"
end
assert_redefine_method('TrueClass', 'to_s', <<-'end')
assert_match %r{\A#<TrueClass:0x[0-9a-f]+>\z}, "#{true}"
end
assert_redefine_method('FalseClass', 'to_s', <<-'end')
assert_match %r{\A#<FalseClass:0x[0-9a-f]+>\z}, "#{false}"
end
assert_redefine_method('Integer', 'to_s', <<-'end')
(-1..10).each { |i|
assert_match %r{\A#<Integer:0x[0-9a-f]+>\z}, "#{i}"
}
end
assert_equal "TestRubyOptimization::Objtostring", "#{Objtostring}"
assert_match %r{\A#<Class:0x[0-9a-f]+>\z}, "#{Class.new}"
assert_match %r{\A#<Module:0x[0-9a-f]+>\z}, "#{Module.new}"
o = Object.new
def o.to_s; 1; end
assert_match %r{\A#<Object:0x[0-9a-f]+>\z}, "#{o}"
end
end
|