rust-lang / rust-lang/rustfmt

Cannot format Path with large parameters

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I-poor-formatting P-low
Dominant language
Rust
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Description

e.g.

fn foo() {
    unprivileged_content.start_all::<script_layout_interface::message::Msg, layout_thread::LayoutThread, script::script_thread::ScriptThread>(true);
}

It should be formatted to something like the following:

fn foo() {
    unprivileged_content.start_all::<
        script_layout_interface::message::Msg,
        layout_thread::LayoutThread,
        script::script_thread::ScriptThread,
    >(true);
}

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  4. Open a pull request that references the issue number.

Research direction

Reproduce the issue using the Rust snippet in the report and inspect rustfmt's formatting behavior for paths with large generic parameter lists. Add a regression test covering the example and verify that formatting produces the expected multiline output.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
tooling
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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