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Fix broken MD link format #1771

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Merged
merged 2 commits into from
Aug 22, 2023
Merged

Fix broken MD link format #1771

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d89b22d
Fix broken links format
chenyukang Aug 22, 2023
01ca0ce
avoid repetition
tshepang Aug 22, 2023
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5 changes: 2 additions & 3 deletions src/generics.md
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Expand Up @@ -127,16 +127,15 @@ You may have a couple of followup questions…
`MyStruct`: `Adt(Foo, &[Param(0), Param(1)])`.

**`instantiate`** How do we actually do the substitutions? There is a function for that too! You
use [`instantiate`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/ty/
generic_args/struct.EarlyBinder.html#method.instantiate) to replace a `GenericArgsRef` with
another list of types.
use [`instantiate`] to replace a `GenericArgsRef` with another list of types.

[Here is an example of actually using `instantiate` in the compiler][instantiatex].
The exact details are not too important, but in this piece of code, we happen to be
converting from the `rustc_hir::Ty` to a real `ty::Ty`. You can see that we first get some args
(`args`). Then we call `type_of` to get a type and call `ty.instantiate(tcx, args)` to get a new
version of `ty` with the args made.

[`instantiate`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/ty/generic_args/struct.EarlyBinder.html#method.instantiate
[instantiatex]: https://github.com/rust-lang/rust/blob/8a562f9671e36cf29c9c794c2646bcf252d55535/compiler/rustc_hir_analysis/src/astconv/mod.rs#L905-L927

**Note on indices:** It is possible for the indices in `Param` to not match with what we expect. For
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