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This expression is parsed by my macro directly from the source file. But the span information is lost, resulting in unhelpful error messages:
<quote expansion>:1:27: 1:32 error: use of partially moved value: `token`
<quote expansion>:1 self.step(states::InHead, token)
^~~~~
/home/keegan/proj/servo/html5/src/lib.rs:10:1: 40:21 note: in expansion of match_token!
/home/keegan/proj/servo/html5/src/tree_builder/mod.rs:361:39: 395:16 note: expansion site
<quote expansion>:1:29: 1:33 note: `token#1` moved here because it has type `collections::string::String`, which is moved by default (use `ref` to override)
<quote expansion>:1 CharacterTokens(Whitespace, text)
Fixing this should probably be part of a larger refactor to do splicing in a way other than by generating strings and re-parsing them.
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