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rust/compiler/rustc_ast
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bors f8ac8fdacf Auto merge of #86190 - asquared31415:extern-main-86110-fix, r=varkor 
Fix ICE when `main` is declared in an `extern` block

Changes in #84401 to implement `imported_main` changed how the crate entry point is found, and a declared `main` in an `extern` block was detected erroneously.  This was causing the ICE described in #86110.

This PR adds a check for this case and emits an error instead.  Previously a `main` declaration in an `extern` block was not detected as an entry point at all, so emitting an error shouldn't break anything that worked previously.  In 1.52.1 stable this is demonstrated, with a `` `main` function not found`` error.

Fixes #86110
2021-07-01 06:39:37 +00:00
..
src Auto merge of #86190 - asquared31415:extern-main-86110-fix, r=varkor 2021-07-01 06:39:37 +00:00
Cargo.toml bumped smallvec deps 2021-02-14 18:03:11 +03:00
README.md mv compiler to compiler/ 2020-08-30 18:45:07 +03:00

README.md

The rustc_ast crate contains those things concerned purely with syntax – that is, the AST ("abstract syntax tree"), parser, pretty-printer, lexer, macro expander, and utilities for traversing ASTs.

For more information about how these things work in rustc, see the rustc dev guide: