Commits on Oct 20, 2022

1. Remove 2 frames of noise from 'context' backtraces …

   Repro:
   
       use anyhow::Context;
   
       fn main() -> anyhow::Result<()> {
           let result = Err(std::fmt::Error);
           result.context("...")
       }
   
   Before:
   
       0: <E as anyhow::context::ext::StdError>::ext_context
                 at /git/anyhow/src/context.rs:27:29
       1: anyhow::context::<impl anyhow::Context<T,E> for core::result::Result<T,E>>::context::{{closure}}
                 at /git/anyhow/src/context.rs:50:30
       2: core::result::Result<T,E>::map_err
                 at /rustc/4b8f4319954ff2642690b9e5cbe4af352d095bf6/library/core/src/result.rs:861:27
       3: anyhow::context::<impl anyhow::Context<T,E> for core::result::Result<T,E>>::context
                 at /git/anyhow/src/context.rs:50:9
       4: testing::main
                 at ./src/main.rs:5:5
   
   After:
   
       0: <E as anyhow::context::ext::StdError>::ext_context
                 at /git/anyhow/src/context.rs:27:29
       1: anyhow::context::<impl anyhow::Context<T,E> for core::result::Result<T,E>>::context
                 at /git/anyhow/src/context.rs:52:31
       2: testing::main
                 at ./src/main.rs:5:5

   

   dtolnay committed Oct 20, 2022
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   131249b View commit details

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