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Diffstat (limited to '')
-rw-r--r-- | src/tools/clippy/tests/ui/crashes/auxiliary/proc_macro_crash.rs | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/crashes/auxiliary/proc_macro_crash.rs b/src/tools/clippy/tests/ui/crashes/auxiliary/proc_macro_crash.rs new file mode 100644 index 000000000..5ff2af7cd --- /dev/null +++ b/src/tools/clippy/tests/ui/crashes/auxiliary/proc_macro_crash.rs @@ -0,0 +1,38 @@ +// compile-flags: --emit=link +// no-prefer-dynamic +// ^ compiletest by default builds all aux files as dylibs, but we don't want that for proc-macro +// crates. If we don't set this, compiletest will override the `crate_type` attribute below and +// compile this as dylib. Removing this then causes the test to fail because a `dylib` crate can't +// contain a proc-macro. + +#![feature(repr128)] +#![allow(incomplete_features)] +#![crate_type = "proc-macro"] + +extern crate proc_macro; + +use proc_macro::{Delimiter, Group, Ident, Span, TokenStream, TokenTree}; + +#[proc_macro] +pub fn macro_test(input_stream: TokenStream) -> TokenStream { + let first_token = input_stream.into_iter().next().unwrap(); + let span = first_token.span(); + + TokenStream::from_iter(vec![ + TokenTree::Ident(Ident::new("fn", Span::call_site())), + TokenTree::Ident(Ident::new("code", Span::call_site())), + TokenTree::Group(Group::new(Delimiter::Parenthesis, TokenStream::new())), + TokenTree::Group(Group::new(Delimiter::Brace, { + let mut clause = Group::new(Delimiter::Brace, TokenStream::new()); + clause.set_span(span); + + TokenStream::from_iter(vec![ + TokenTree::Ident(Ident::new("if", Span::call_site())), + TokenTree::Ident(Ident::new("true", Span::call_site())), + TokenTree::Group(clause.clone()), + TokenTree::Ident(Ident::new("else", Span::call_site())), + TokenTree::Group(clause), + ]) + })), + ]) +} |