src/test/ui/proc-macro/auxiliary/attr-stmt-expr-rpass.rs


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51

// 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
}