https://github.com/lu-zero/compiler_error

Triggerable compiler errors for rustc < 1.20
https://github.com/lu-zero/compiler_error

Last synced: about 2 months ago
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Triggerable compiler errors for rustc < 1.20

• Host: GitHub
• URL: https://github.com/lu-zero/compiler_error
• Owner: lu-zero
• License: mit
• Created: 2016-12-22T23:32:10.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2017-08-14T13:51:09.000Z (almost 8 years ago)
• Last Synced: 2024-10-08T16:08:48.238Z (8 months ago)
• Language: Rust
• Homepage:
• Size: 2.93 KB
• Stars: 5
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Triggerable custom compiler error

[![Crates.io](https://img.shields.io/crates/v/compiler_error.svg)](https://crates.io/crates/compiler_error)

[![LICENSE](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE)

`compiler_error` is a rust compiler plugin that simply triggers a compilation

error on demand and prints the token it receives, it is similar to the `#error`

directive in the C preprocessor.

It is quite useful to provide helpful error message in macros with non-trival syntaxes.

## Note

From [Rust 1.20](https://github.com/rust-lang/rust/issues/40872) an identical macro is available directly in the standard library, please use this only for backwards compatibility.