Add base for implementing extern types#2865
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gcc/rust/ChangeLog: * resolve/rust-ast-resolve-implitem.h: Declare external types as new types.
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gcc/rust/ChangeLog: * hir/tree/rust-hir-item.h (class ExternalTypeItem): New class. * hir/tree/rust-hir.cc (ExternalTypeItem::as_string): Likewise. * backend/rust-compile-extern.h: Add base for handling HIR::ExternalTypeItem node. * checks/errors/borrowck/rust-bir-builder-struct.h: Likewise. * checks/errors/borrowck/rust-function-collector.h: Likewise. * checks/errors/rust-const-checker.cc (ConstChecker::visit): Likewise. * checks/errors/rust-const-checker.h: Likewise. * checks/errors/rust-unsafe-checker.cc (UnsafeChecker::visit): Likewise. * checks/errors/rust-unsafe-checker.h: Likewise. * hir/rust-ast-lower-extern.h: Likewise. * hir/rust-hir-dump.cc (Dump::visit): Likewise. * hir/rust-hir-dump.h: Likewise. * hir/tree/rust-hir-full-decls.h (class ExternalTypeItem): Likewise. * hir/tree/rust-hir-visitor.h: Likewise. (ExternalTypeItem::accept_vis): Likewise. * typecheck/rust-hir-type-check-implitem.cc (TypeCheckTopLevelExternItem::visit): Likewise. * typecheck/rust-hir-type-check-implitem.h: Likewise.
gcc/rust/ChangeLog: * hir/rust-ast-lower-extern.h: Lower to HIR::ExternalTypeItem nodes. * hir/tree/rust-hir-item.h (class ExternalTypeItem): Create private visibility by default as extern types have no visibility - add a comment about the correctness of this.
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Feb 28, 2024
| ExternalTypeItem (Analysis::NodeMapping mappings, Identifier item_name, | ||
| location_t locus) | ||
| : ExternalItem (std::move (mappings), std::move (item_name), | ||
| Visibility (Visibility::PRIVATE), |
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Extern types may accept pub visibility modifiers.
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I'll take care of this in a later PR, I think it'll be easier
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This PR adds the required HIR node and visitors for implementing extern types properly. The only step currently being performed is the lowering of AST extern types to their HIR counterpart.