run-pass/attr-stmt-expr: expand test cases
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7c0124dd35
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2 changed files with 28 additions and 1 deletions
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@ -14,7 +14,8 @@
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#![feature(proc_macro, stmt_expr_attributes)]
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extern crate attr_stmt_expr;
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use attr_stmt_expr::{expect_let, expect_print_stmt, expect_expr, expect_print_expr};
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use attr_stmt_expr::{expect_let, expect_print_stmt, expect_expr, expect_print_expr,
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no_output, noop};
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fn print_str(string: &'static str) {
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// macros are handled a bit differently
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@ -29,6 +30,17 @@ fn main() {
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#[expect_print_stmt]
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println!("{}", string);
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let _: () = {
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#[no_output]
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"Hello, world!"
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};
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let _: &'static str = #[noop] "Hello, world!";
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let _: &'static str = {
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#[noop] "Hello, world!"
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};
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#[expect_expr]
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print_str("string")
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}
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@ -44,3 +44,18 @@ pub fn expect_print_expr(attr: TokenStream, item: TokenStream) -> TokenStream {
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assert_eq!(item.to_string(), "println!(\"{}\" , string)");
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item
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}
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#[proc_macro_attribute]
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pub fn no_output(attr: TokenStream, item: TokenStream) -> TokenStream {
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assert!(attr.to_string().is_empty());
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assert!(!item.to_string().is_empty());
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"".parse().unwrap()
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}
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#[proc_macro_attribute]
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pub fn noop(attr: TokenStream, item: TokenStream) -> TokenStream {
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assert!(attr.to_string().is_empty());
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assert!(!item.to_string().is_empty());
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item
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}
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