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Error message for mismatched type parameter count repeats "parameter(s)" twice #39732

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Error message for mismatched type parameter count repeats "parameter(s)" twice#39732

Description

@shepmaster
shepmaster
opened on Feb 11, 2017

In Rust 1.15.1 and nightly (24a70eb 2017-02-09)

fn foo<A, B>() {}

fn main() {
    foo::<u8>()
}

Produces the error:

error[E0089]: too few type parameters provided: expected 2 parameters parameters, found 1 parameter parameter
 --> src/main.rs:4:5
  |
4 |     foo::<u8>()
  |     ^^^^^^^^^ expected 2 type parameters

Specifically, my issue is with:

expected 2 parameters parameters, found 1 parameter parameter

Activity

  1. shepmaster commented on Feb 11, 2017

    @shepmaster
    shepmaster
    on Feb 11, 2017
    MemberAuthor

    It certainly looks like it would be coming from this bit of code, but on first read it all looks reasonable.

  2. shepmaster commented on Feb 11, 2017

    @shepmaster
    shepmaster
    on Feb 11, 2017
    MemberAuthor

    Oh, no E0089 is this bit. Makes more sense. Whipping up a patch.

  3. frewsxcv
    added a commit that references this issue on Feb 13, 2017

    Rollup merge of rust-lang#39758 - shepmaster:e0089-duplicate-text, r=…

    4148711
  4. bors
    closed this as completedin #39758on Feb 13, 2017
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