expand/resolve: Pre-requisites to "Turn `#[derive]` into a regular macro attribute"#79185

Merged

bors merged 8 commits into

rust-lang:masterfrom

petrochenkov:derattr2

Nov 20, 2020

Commits on Nov 19, 2020

expand: Tell built-in macros whether we are currently in forced expansion mode
petrochenkov
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expand: Move `fully_configure` to `config.rs`
petrochenkov
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resolve: Introduce a separate `NonMacroAttrKind` for legacy derive helpers
petrochenkov
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resolve: Centralize some error reporting for unexpected macro resolutions
petrochenkov
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resolve/expand: Misc cleanup
petrochenkov
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expand: Cleanup attribute collection in invocation collector
petrochenkov
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expand: Stop derive expansion un unexpected targets early
petrochenkov
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expand: Mark some dead code in derive expansion as unreachable
petrochenkov
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