Impls for aliased types are ignored

[cheblin]

Environment

• Intellij-Rust plugin version: 0.20.2103-182
• Rust toolchain version: stable-x86_64-pc-windows-msvc
• IDE name and version: IntelliJ IDEA 2018.2.2 (Ultimate Edition)
  Build #IU-182.4129.26, built on August 16, 2018
  Licensed to Sirguy Chikirev
  Subscription is active until March 21, 2019
  JRE: 1.8.0_152-release-1248-b8 amd64
  JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
  Windows 10 10.0
• Operating system:

Problem description

IDE IntelliSense do not recognize Rust type aliases.

Steps to reproduce

create default executable Rust project, and insert this snippet.

struct EE {
    pub field1: u32,
    pub field2: u8,
}

type XX = EE;

impl XX {
    pub fn new() -> XX {
        XX { field1: 2, field2: 3 }
    }
}

fn main() {
    let xx = XX::new(); // new() is not recognized by intellisense
    println!("{:?}", xx.field2); //xx type in not recognized by intellisense

    let yy = EE::new();// new() is not recognized by intellisense
    println!("{:?}", yy.field2); //yy type in not recognized by intellisense
}

but the code is correct and compile / executed properly.

[z2665]

I get the same problem. When I use libc. the type aliases, like pub type c_int = i32; can't recognized by intellisense

[cheblin]

IDEA cannot recognize aliased types totally... and Impls to.

[vlad20012]

@cheblin m? It isn't truth. We support type aliases in all cases except impls for aliased types. If you bumped into a bug, please, provide more info.

[cheblin]

[vlad20012]

@cheblin, yep, the last comment is an unknown bug. I fixed it in #2797. Thanks for the report!