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support mashup use of env!("varname") #12
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Published in 0.1.8. |
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Holy smokes, that was fast! Thanks @dtolnay I may follow up with some things small things like updating the documentation. I was also tempted to improve the macro error messages to be more helpful in understanding what input mashup was looking for but wanted to keep this pull focused. |
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fixes #11
This actually fixes another bug I found unexpected with the stringification of
TokenStream::Literal(...)types the issue above as well. Two birds with one stone. I added test cases to cover my changes. This macro panics if the env var is not present with a hopefully helpful message. I wasn't sure how to cover that in a test case. Rust has#[should_panic]attribute for tests but that's don't panic at runtime not at compile time :)