35 lines
655 B
Rust
35 lines
655 B
Rust
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#![feature(more_qualified_paths)]
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mod foo_bar {
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pub enum Example {
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Example1 {},
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Example2 {},
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}
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}
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fn main() {
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foo!(crate::foo_bar::Example, Example1);
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let i1 = foo_bar::Example::Example1 {};
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assert_eq!(i1.foo_example(), 1);
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let i2 = foo_bar::Example::Example2 {};
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assert_eq!(i2.foo_example(), 2);
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}
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#[macro_export]
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macro_rules! foo {
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($struct:path, $variant:ident) => {
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impl $struct {
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pub fn foo_example(&self) -> i32 {
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match self {
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<$struct>::$variant { .. } => 1,
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_ => 2,
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}
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}
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}
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};
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}
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