883fe10da2
syntax: ABI-oblivious grammar This PR has the following effects: 1. `extern $lit` is now legal where `$lit:literal` and `$lit` is substituted for a string literal. 2. `extern "abi_that_does_not_exist"` is now *syntactically* legal whereas before, the set of ABI strings was hard-coded into the grammar of the language. With this PR, the set of ABIs are instead validated and translated during lowering. That seems more appropriate. 3. `ast::FloatTy` is now distinct from `rustc_target::abi::FloatTy`. The former is used substantially more and the translation between them is only necessary in a single place. 4. As a result of 2-3, libsyntax no longer depends on librustc_target, which should improve pipe-lining somewhat. cc @rust-lang/lang -- the points 1-2 slightly change the definition of the language but in a way which seems consistent with our general principles (in particular wrt. the discussions of turning things into semantic errors). I expect this to be uncontroversial but it's worth letting y'all know. :) r? @varkor |
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| .. | ||
| analyze_source_file | ||
| symbol | ||
| analyze_source_file.rs | ||
| Cargo.toml | ||
| edition.rs | ||
| hygiene.rs | ||
| lib.rs | ||
| span_encoding.rs | ||
| symbol.rs | ||
| tests.rs | ||