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Co-authored-by: Joshua Nelson <joshua@yottadb.com>
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Camelid 2020-08-22 18:59:23 -07:00 committed by Tshepang Lekhonkhobe
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@ -20,8 +20,8 @@ without explicit syntax) like coercions, autoderef, autoref and overloaded metho
calls have become explicit casts, deref operations, reference expressions or calls have become explicit casts, deref operations, reference expressions or
concrete function calls. concrete function calls.
The [THIR] has datatypes that mirror the [HIR] datatypes, but the [THIR] is a shallow The [THIR] is a shallow wrapper around [HIR], with datatypes that mirror the [HIR] datatypes.
wrapper around [HIR]. For example, instead of `-x` being a `thir::ExprKind::Neg(thir::Expr)` For example, instead of `-x` being a `thir::ExprKind::Neg(thir::Expr)`
(a deep copy), it is a `thir::ExprKind::Neg(hir::Expr)` (a shallow copy). (a deep copy), it is a `thir::ExprKind::Neg(hir::Expr)` (a shallow copy).
This shallowness enables the [THIR] to represent all datatypes that [HIR] has, but This shallowness enables the [THIR] to represent all datatypes that [HIR] has, but
without having to create an in-memory copy of the entire [HIR]. without having to create an in-memory copy of the entire [HIR].