{"action":"closed","number":4310,"pull_request":{"url":"https://api.github.com/repos/chapel-lang/chapel/pulls/4310","id":80830666,"html_url":"https://github.com/chapel-lang/chapel/pull/4310","diff_url":"https://github.com/chapel-lang/chapel/pull/4310.diff","patch_url":"https://github.com/chapel-lang/chapel/pull/4310.patch","issue_url":"https://api.github.com/repos/chapel-lang/chapel/issues/4310","number":4310,"state":"closed","locked":false,"title":"In build.cpp, move iterableExpr to call to parloopexpr()","user":{"login":"mppf","id":3653132,"avatar_url":"https://avatars.githubusercontent.com/u/3653132?v=3","gravatar_id":"","url":"https://api.github.com/users/mppf","html_url":"https://github.com/mppf","followers_url":"https://api.github.com/users/mppf/followers","following_url":"https://api.github.com/users/mppf/following{/other_user}","gists_url":"https://api.github.com/users/mppf/gists{/gist_id}","starred_url":"https://api.github.com/users/mppf/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mppf/subscriptions","organizations_url":"https://api.github.com/users/mppf/orgs","repos_url":"https://api.github.com/users/mppf/repos","events_url":"https://api.github.com/users/mppf/events{/privacy}","received_events_url":"https://api.github.com/users/mppf/received_events","type":"User","site_admin":false},"body":"This provides a solution to a problem I ran into while working on array\r\nimprovements. With my array improvements, iterator records capture array\r\nand domain arguments by ref (since autoCopy now does a deep copy and\r\niterator records are copied a number of times in normal use). That change\r\ncauses problems for cases like the below:\r\n\r\n    const a3 : [1..6,1..3] int = [(i,j) in {1..6,1..3}] i+j;\r\n\r\n    (from test/users/shetag/unboundslice2.chpl ).\r\n\r\nin which the expression {1..6,1..3} is a domain that is created in a\r\n\"parloopexpr\" function (created in build.cpp).  But the \"parloopexpr\"\r\nfunction returns an iterator record, which the caller iterates over. The\r\nproblem is that - if iterator records capture arrays and domain arguments\r\nby ref - by the time \"parloopexpr\" returns, the anonymous domain has\r\nalready been freed (and the iterator record now refers to garbage\r\nmemory).\r\n\r\nThis change adjusts build.cpp to generate the iterable expression such as\r\n{1..6,1..3} in this case in the call site for parloopexpr and for the\r\nbody of parloopexpr to use it as an argument.\r\n\r\nNote: While here, I investigated if it was possible to remove\r\nentirely handleArrayTypeCase. Doing so causes 42 test failures.\r\n\r\nPasses quickstart testing.\r\nPassed full local testing.\r\nReviewed by @vasslitvinov - thanks!","created_at":"2016-08-10T17:02:53Z","updated_at":"2016-08-11T13:21:35Z","closed_at":"2016-08-11T13:21:35Z","merged_at":"2016-08-11T13:21:35Z","merge_commit_sha":"ad3c5585a99eaa9f5ea8086d8c1ec9571d637639","assignee":{"login":"vasslitvinov","id":8039635,"avatar_url":"https://avatars.githubusercontent.com/u/8039635?v=3","gravatar_id":"","url":"https://api.github.com/users/vasslitvinov","html_url":"https://github.com/vasslitvinov","followers_url":"https://api.github.com/users/vasslitvinov/followers","following_url":"https://api.github.com/users/vasslitvinov/following{/other_user}","gists_url":"https://api.github.com/users/vasslitvinov/gists{/gist_id}","starred_url":"https://api.github.com/users/vasslitvinov/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/vasslitvinov/subscriptions","organizations_url":"https://api.github.com/users/vasslitvinov/orgs","repos_url":"https://api.github.com/users/vasslitvinov/repos","events_url":"https://api.github.com/users/vasslitvinov/events{/privacy}","received_events_url":"https://api.github.com/users/vasslitvinov/received_events","type":"User","site_admin":false},"assignees":[{"login":"vasslitvinov","id":8039635,"avatar_url":"https://avatars.githubusercontent.com/u/8039635?v=3","gravatar_id":"","url":"https://api.github.com/users/vasslitvinov","html_url":"https://github.com/vasslitvinov","followers_url":"https://api.github.com/users/vasslitvinov/followers","following_url":"https://api.github.com/users/vasslitvinov/following{/other_user}","gists_url":"https://api.github.com/users/vasslitvinov/gists{/gist_id}","starred_url":"https://api.github.com/users/vasslitvinov/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/vasslitvinov/subscriptions","organizations_url":"https://api.github.com/users/vasslitvinov/orgs","repos_url":"https://api.github.com/users/vasslitvinov/repos","events_url":"https://api.github.com/users/vasslitvinov/events{/privacy}","received_events_url":"https://api.github.com/users/vasslitvinov/received_events","type":"User","site_admin":false}],"milestone":null,"commits_url":"https://api.github.com/repos/chapel-lang/chapel/pulls/4310/commits","review_comments_url":"https://api.github.com/repos/chapel-lang/chapel/pulls/4310/comments","review_comment_url":"https://api.github.com/repos/chapel-lang/chapel/pulls/comments{/number}","comments_url":"https://api.github.com/repos/chapel-lang/chapel/issues/4310/comments","statuses_url":"https://api.github.com/repos/chapel-lang/chapel/statuses/3efefc7560f0d0aeb77744f8f2a34401fa79b9aa","head":{"label":"mppf:move-iteratorExpr-to-caller","ref":"move-iteratorExpr-to-caller","sha":"3efefc7560f0d0aeb77744f8f2a34401fa79b9aa","user":{"login":"mppf","id":3653132,"avatar_url":"https://avatars.githubusercontent.com/u/3653132?v=3","gravatar_id":"","url":"https://api.github.com/users/mppf","html_url":"https://github.com/mppf","followers_url":"https://api.github.com/users/mppf/followers","following_url":"https://api.github.com/users/mppf/following{/other_user}","gists_url":"https://api.github.com/users/mppf/gists{/gist_id}","starred_url":"https://api.github.com/users/mppf/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mppf/subscriptions","organizations_url":"https://api.github.com/users/mppf/orgs","repos_url":"https://api.github.com/users/mppf/repos","events_url":"https://api.github.com/users/mppf/events{/privacy}","received_events_url":"https://api.github.com/users/mppf/received_events","type":"User","site_admin":false},"repo":{"id":22106313,"name":"chapel","full_name":"mppf/chapel","owner":{"login":"mppf","id":3653132,"avatar_url":"https://avatars.githubusercontent.com/u/3653132?v=3","gravatar_id":"","url":"https://api.github.com/users/mppf","html_url":"https://github.com/mppf","followers_url":"https://api.github.com/users/mppf/followers","following_url":"https://api.github.com/users/mppf/following{/other_user}","gists_url":"https://api.github.com/users/mppf/gists{/gist_id}","starred_url":"https://api.github.com/users/mppf/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mppf/subscriptions","organizations_url":"https://api.github.com/users/mppf/orgs","repos_url":"https://api.github.com/users/mppf/repos","events_url":"https://api.github.com/users/mppf/events{/privacy}","received_events_url":"https://api.github.com/users/mppf/received_events","type":"User","site_admin":false},"private":false,"html_url":"https://github.com/mppf/chapel","description":"a 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