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correct the note about HAIR

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mark 2020-04-04 12:57:14 -05:00 committed by Who? Me?!
parent 1424834cd1
commit edcf8ab931
1 changed files with 4 additions and 4 deletions
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@ -29,8 +29,6 @@ we'll talk about that later.
- nameres (**TODO** chrissimpkins) - nameres (**TODO** chrissimpkins)
- early linting (**TODO** chrissimpkins) - early linting (**TODO** chrissimpkins)
- We then [_parse_ the stream of tokens][parser] to build an Abstract Syntax
Tree (AST).
- We then take the AST and [convert it to High-Level Intermediate - We then take the AST and [convert it to High-Level Intermediate
Representation (HIR)][hir]. This is a compiler-friendly representation of the Representation (HIR)][hir]. This is a compiler-friendly representation of the
AST. This involves a lot of desugaring of things like loops and `async fn`. AST. This involves a lot of desugaring of things like loops and `async fn`.
@ -159,8 +157,10 @@ for different purposes:
- High-level IR (HIR): This is a sort of desugared AST. It's still close - High-level IR (HIR): This is a sort of desugared AST. It's still close
to what the user wrote syntactically, but it includes some implicit things to what the user wrote syntactically, but it includes some implicit things
such as some elided lifetimes, etc. This IR is amenable to type checking. such as some elided lifetimes, etc. This IR is amenable to type checking.
- HAIR: This is an intermediate between HIR and MIR. This only exists to make - HAIR: This is an intermediate between HIR and MIR. It is like the HIR but it
it easier to lower HIR to MIR. is fully typed and a bit more desugared (e.g. method calls and implicit
dereferences are made fully explicit). Moreover, it is easier to lower to MIR
than HIR.
- Middle-level IR (MIR): This IR is basically a Control-Flow Graph (CFG). A CFG - Middle-level IR (MIR): This IR is basically a Control-Flow Graph (CFG). A CFG
is a type of diagram that shows the basic blocks of a program and how control is a type of diagram that shows the basic blocks of a program and how control
flow can go between them. Likewise, MIR also has a bunch of basic blocks with flow can go between them. Likewise, MIR also has a bunch of basic blocks with