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rust/compiler/rustc_typeck
Eric Holk b9d3f65412 [drop tracking] Use parent expression for scope
Previously we were just using the parent node as the scope for a
temporary value, but it turns out this is too narrow. For example, in
an expression like

    Foo {
        b: &42,
        a: async { 0 }.await,
    }

the scope for the &42 was set to the ExprField node for `b: &42`, when
we actually want to use the Foo struct expression.

We fix this by recursively searching through parent nodes until we find
a Node::Expr. It may be that we don't find one, and if so that's okay,
we will just fall back on the enclosing temporary scope which is always
sufficient.
2022-08-30 15:17:45 -07:00
..
src [drop tracking] Use parent expression for scope 2022-08-30 15:17:45 -07:00
Cargo.toml Improve error message for unstable default body 2022-07-26 15:40:04 +04:00
README.md

For high-level intro to how type checking works in rustc, see the type checking chapter of the rustc dev guide.