rust/tests/ui/proc-macro/auxiliary/attr-stmt-expr-rpass.rs
2023-01-11 09:32:08 +00:00

52 lines
1.4 KiB
Rust

// force-host
// no-prefer-dynamic
#![crate_type = "proc-macro"]
extern crate proc_macro;
use proc_macro::TokenStream;
#[proc_macro_attribute]
pub fn expect_let(attr: TokenStream, item: TokenStream) -> TokenStream {
assert!(attr.to_string().is_empty());
assert_eq!(item.to_string(), "let string = \"Hello, world!\" ;");
item
}
#[proc_macro_attribute]
pub fn expect_print_stmt(attr: TokenStream, item: TokenStream) -> TokenStream {
assert!(attr.to_string().is_empty());
assert_eq!(item.to_string(), "println! (\"{}\", string) ;");
item
}
#[proc_macro_attribute]
pub fn expect_expr(attr: TokenStream, item: TokenStream) -> TokenStream {
assert!(attr.to_string().is_empty());
assert_eq!(item.to_string(), "print_str(\"string\")");
item
}
#[proc_macro_attribute]
pub fn expect_print_expr(attr: TokenStream, item: TokenStream) -> TokenStream {
assert!(attr.to_string().is_empty());
assert_eq!(item.to_string(), "println! (\"{}\", string)");
item
}
#[proc_macro_attribute]
pub fn no_output(attr: TokenStream, item: TokenStream) -> TokenStream {
assert!(attr.to_string().is_empty());
assert!(!item.to_string().is_empty());
"".parse().unwrap()
}
#[proc_macro_attribute]
pub fn noop(attr: TokenStream, item: TokenStream) -> TokenStream {
assert!(attr.to_string().is_empty());
assert!(!item.to_string().is_empty());
item
}