0f453a5568
Instead of a `kind` field containting a `TokenNode` variant, a TokenTree is now an enum with variants of different types (Literal, Op, Term, etc). Note that a TokenTree could be a sequence of TokenTrees if it is a Group variant. Other notes: I'm unsure about the set_span call in Builder::emit_if, but I did not want to throw away the passed in Span. Parsing relies on destructuring references to the values associated with TokenTree enum variants It doesn't seem as easy to compose/chain TokenStreams as it is to collect a Vec<TokenTree> into a TokenStream. There is probably some iterator API I could use instead. See `match_arms` and build.rs Refs #121 |
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| Cargo.toml | ||