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Bug 13255 – static and selective imports should be done lazily

Status: NEW
Severity: enhancement
Priority: P4
Component: dmd
Product: D
Version: D2
Platform: All
OS: All
Creation time: 2014-08-04T18:50:26Z
Last change time: 2024-12-13T18:23:29Z
Keywords: performance
Assigned to: No Owner
Creator: Martin Nowak
See also: https://issues.dlang.org/show_bug.cgi?id=13242, https://issues.dlang.org/show_bug.cgi?id=18414

Comments

Comment #0 by code — 2014-08-04T18:50:26Z

From a discussion on reducing "phobos dependencies" [1]. It's possible to make static imports and selective imports lazy without changing semantics. And as Andrei mentioned it's even possible to defer global imports until the first unqualified symbols needs to be resolved. Implementing this would allow to minimize coupling of an API. Right now transitive imports in phobos account for a big part of D compile times in smaller projects. This is an even more important enhancement for fast compile times in big projects with many dependencies. [1] http://forum.dlang.org/post/[email protected]

Comment #1 by dfj1esp02 — 2017-05-24T12:09:28Z

Renamed import should be done lazily too, if issue 13242 didn't get it.

Comment #2 by robert.schadek — 2024-12-13T18:23:29Z

THIS ISSUE HAS BEEN MOVED TO GITHUB https://github.com/dlang/dmd/issues/18863 DO NOT COMMENT HERE ANYMORE, NOBODY WILL SEE IT, THIS ISSUE HAS BEEN MOVED TO GITHUB