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Code generation incomplete for ">>>" operator #517

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bwilkerson opened this issue Nov 18, 2011 · 1 comment
Closed

Code generation incomplete for ">>>" operator #517

bwilkerson opened this issue Nov 18, 2011 · 1 comment
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closed-not-planned Closed as we don't intend to take action on the reported issue

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@bwilkerson
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It appears that code generation is incomplete or incorrect for the right shift operator ">>>".

Given the following HTML file:

<html>
  <head>
    <title>testing</title>
  </head>
  <body>
    <h1>testing</h1>
    <h2 id="status">dart is not running</h2>
    <script type="text/javascript" src="testing.dart.app.js"></script>
  </body>
</html>

and the following Dart file (named testing.dart):

import('dart:html');

class t {
  t() {
  }

  void run() {
    var i = 1;
    write(i >>> 1);
  }

  void write(String message) {
    // the DOM library defines a global "window" variable
    HTMLDocument doc = window.document;
    HTMLParagraphElement p = doc.createElement('p');
    p.textContent = message;
    doc.body.appendChild(p);
  }
}

void main() {
  new t().run();
}

Using dartc to compile the dart file and opening the file in Chrome will produce the following error:

Uncaught TypeError: Object 1 has no method 'SHR$operator'
@ghost
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ghost commented Nov 18, 2011

num & int implementation do not implement logical shift right, therefore the reported error is correct.

See also issue #394.

In short, logical shift right does not make sense for arbitrary large integers, ">>>" should be removed from the spec.

Added WontFix label.

@kevmoo kevmoo added closed-not-planned Closed as we don't intend to take action on the reported issue and removed resolution-wont_fix labels Mar 1, 2016
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@mmukagali mmukagali mentioned this issue Dec 2, 2022
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copybara-service bot pushed a commit that referenced this issue Feb 20, 2023
@devoncarew
[deps] rev args, characters, dartdoc, ffi, http, markdown, mockito, p…
9bc32f1 
…ath, pool, source_maps, test, tools, webdev

Revisions updated by `dart tools/rev_sdk_deps.dart`.

args (https://github.com/dart-lang/args/compare/b08471e..9305d5a):
  9305d5a  2023-02-15  Naoto Kaneko  Update README.md (#236)

characters (https://github.com/dart-lang/characters/compare/29f3a3e..3281cc7):
  3281cc7  2023-02-16  Devon Carew  blast_repo fixes (#75)

dartdoc (https://github.com/dart-lang/dartdoc/compare/3931595..dba6f94):
  dba6f946  2023-02-16  Janice Collins  Preserve type aliases for records in output (#3340)
  96e61903  2023-02-16  Sam Rawlins  Remove unused additionalOptions parameter, other little refactorings (#3339)
  f64290e1  2023-02-13  Devon Carew  remove an unused css attribute (#3335)
  c055526a  2023-02-13  Devon Carew  fix an issue where we created a temporary directory when performing a dry run (#3334)
  1f6c8db5  2023-02-13  dependabot[bot]  Bump github/codeql-action from 2.2.1 to 2.2.4 (#3337)
  f1fa0efc  2023-02-13  dependabot[bot]  Bump actions/cache from 3.2.4 to 3.2.5 (#3338)

ffi (https://github.com/dart-lang/ffi/compare/69d7596..32f5eef):
  32f5eef  2023-02-20  Daco Harkes  Bump SDK constraint to 4.0.0 (#185)

http (https://github.com/dart-lang/http/compare/f4b365e..c13a3f8):
  c13a3f8  2023-02-17  Alex Li  ✨ Add Cronet embedded tool (#853)

markdown (https://github.com/dart-lang/markdown/compare/f51c24c..4befe66):
  4befe66  2023-02-16  Zhiguang Chen  Do not generate heading IDs for headings with no content in `HeaderWithIdSyntax` (#522)
  cae08af  2023-02-15  Kevin Moore  Prepare to release v7.0.1 (#520)
  bdbaf76  2023-02-15  Zhiguang Chen  Remove lookarounds from autolink extension patterns (#519)
  eb09fac  2023-02-14  Kevin Moore  Move to pkg:dart_flutter_team_lints (#518)
  51a6389  2023-02-15  Zhiguang Chen  Add line endings to HTML blocks (#512)
  a4cd7a0  2023-02-14  Kevin Moore  Label tests that only run on the VM: allows running tests with browser (#516)
  6788042  2023-02-14  Kevin Moore  CI: add publish and response workflows (#517)

mockito (https://github.com/dart-lang/mockito/compare/d2a8df1..ed5bd84):
  ed5bd84  2023-01-09  Ross Wang  Relax mixin criteria
  781752c  2023-02-13  Sam Rawlins  Change `void` to `dynamic` when overriding method arguments
  71e41b9  2023-02-10  Sam Rawlins  Add `ignore_for_file: use_of_void_result`
  d5a25f8  2023-02-08  Sam Rawlins  Fix violations of `unnecessary_parenthesis` lint

path (https://github.com/dart-lang/path/compare/a95f1e9..24b58a2):
  24b58a2  2023-02-20  Kevin Moore  Move to team lints, require Dart 2.19 (#138)
  8ec8ca0  2023-02-18  Kevin Moore  blast_repo fixes (#137)

pool (https://github.com/dart-lang/pool/compare/51f1131..694cfd8):
  694cfd8  2023-02-20  Kevin Moore  move to package:dart_flutter_team_lints, require Dart 2.19 (#65)
  40bf2af  2023-02-20  Kevin Moore  blast_repo fixes (#64)

source_maps (https://github.com/dart-lang/source_maps/compare/cf44db3..a112e98):
  a112e98  2023-02-16  Devon Carew  configure publishing automation (#74)

test (https://github.com/dart-lang/test/compare/b5e70db..e56c643):
  e56c6439  2023-02-17  Jacob MacDonald  Add exe compiler, supports running tests compiled to native executables (#1941)
  f80dfa00  2023-02-16  Nate Bosch  Add note about why we are replacing matcher (#1940)
  732ae1de  2023-02-15  Nate Bosch  Add `because` usage in examples (#1939)
  f6df9756  2023-02-15  Jacob MacDonald  Fix typo in readme (#1937)
  aca53419  2023-02-14  Nate Bosch  Add a caret constraint for matcher (#1927)
  f7f3a019  2023-02-14  Jacob MacDonald  use test_api/backend.dart instead of test_core/backend.dart (#1936)
  de40c1c0  2023-02-14  Jacob MacDonald  Add support for `--compiler` flag (#1903)
  1f42db8c  2023-02-13  Devon Carew  updates to package:checks docs (#1933)

tools (https://github.com/dart-lang/tools/compare/48a544b..a53933c):
  a53933c  2023-02-17  Elias Yishak  [package:dash_analytics] Tests for conforming to GA4 Measurement Protocol limitations (#9)
  c54430b  2023-02-17  Devon Carew  add some clarification to the top-level readme (#8)

webdev (https://github.com/dart-lang/webdev/compare/0bae2be..ae7eb80):
  ae7eb80  2023-02-17  Anna Gringauze  Add tests for object inspection (#1973)
  7d80a2c  2023-02-17  Elliott Brooks (she/her)  Ignore offset / count if an instance has no `length`  (#1972)
  cd66172  2023-02-17  Elliott Brooks (she/her)  [MV3 Debug Extension] User can reload app and continue to debug (#1968)
  8b7f9d3  2023-02-16  Anna Gringauze  Re-enable weak webdev tests (#1960)
  83d8e47  2023-02-16  Elliott Brooks (she/her)  [MV3 Debug Extension] Variables in panel.dart should be private (#1969)
  4e85e74  2023-02-16  Elliott Brooks (she/her)  [MV3 Debug Extension] The new debug extension can be run on Manifest V3 or Manifest V2 (#1966)
  3982f5f  2023-02-15  Elliott Brooks (she/her)  [MV3 Debug Extension] Clean up tests in preparation for supporting compiling to MV2  (#1964)
  3ad544e  2023-02-15  Elliott Brooks (she/her)  [MV3 Debug Extension] Remove isMV3Extension field from DevtoolsRequest (#1963)
  c77043e  2023-02-14  Elliott Brooks (she/her)  [MV3 Debug Extension] Fix isDevMode getter (#1962)
  a761125  2023-02-14  Elliott Brooks (she/her)  [MV3 Debug Extension] Print `console` messages on test failure (#1961)
  41e92be  2023-02-14  Anna Gringauze  Create test_common package (#1945)
  443f820  2023-02-14  Anna Gringauze  Re-enable skipped reload test (#1958)
  a7bc3fc  2023-02-14  Anna Gringauze  Make dart-uri-file-uri test use sound null safety (#1959)
  464a8eb  2023-02-14  Elliott Brooks (she/her)  [MV3 Debug Extension] Compile extension with Dart instead of shell script (#1954)
  7cf8fe2  2023-02-13  Anna Gringauze  Fix asset handler tests (#1956)
  c371ad7  2023-02-13  Anna Gringauze  Fix chrome_proxy_service tests broken after switch to null safety by default (#1957)
  d6ec127  2023-02-13  Anna Gringauze  Move test-only code from the SdkLayout (#1955)
  35fa34b  2023-02-13  Elliott Brooks (she/her)  [MV3 Debug Extension] Update Chrome APIs to be backwards compatible with MV2 (#1951)

Change-Id: I4250594d0fa775d07cb3a0f8594e634552de452b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/284240
Reviewed-by: Konstantin Shcheglov <[email protected]>
Auto-Submit: Devon Carew <[email protected]>
Commit-Queue: Konstantin Shcheglov <[email protected]>
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