mirror of https://github.com/rust-lang/rust
56 lines
1001 B
Rust
56 lines
1001 B
Rust
//@ run-rustfix
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#![allow(dead_code)]
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pub fn foo(x: &str) -> Result<(), Box<dyn std::error::Error>> {
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Err(format!("error: {x}"))
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//~^ ERROR mismatched types
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}
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macro_rules! outer {
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($x: expr) => {
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inner!($x)
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}
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}
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macro_rules! inner {
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($x: expr) => {
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format!("error: {}", $x)
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//~^ ERROR mismatched types
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}
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}
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fn bar(x: &str) -> Result<(), Box<dyn std::error::Error>> {
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Err(outer!(x))
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}
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macro_rules! entire_fn_outer {
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() => {
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entire_fn!();
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}
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}
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macro_rules! entire_fn {
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() => {
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pub fn baz(x: &str) -> Result<(), Box<dyn std::error::Error>> {
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Err(format!("error: {x}"))
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//~^ ERROR mismatched types
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}
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}
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}
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entire_fn_outer!();
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macro_rules! nontrivial {
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($x: expr) => {
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Err(format!("error: {}", $x))
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//~^ ERROR mismatched types
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}
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}
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pub fn qux(x: &str) -> Result<(), Box<dyn std::error::Error>> {
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nontrivial!(x)
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}
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fn main() {}
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