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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
}
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