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Explain how to dump HIR

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Phil Ellison 2018-02-07 07:08:58 +00:00
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@ -10,6 +10,14 @@ been desugared away (as an example, `for` loops are converted into a
This chapter covers the main concepts of the HIR. This chapter covers the main concepts of the HIR.
You can view the HIR representation of your code by passing the
`-Zunpretty=hir-tree` flag to rustc, for example by setting the `RUSTFLAGS`
environment variable:
```
RUSTFLAGS=-Zunpretty=hir-tree cargo build
```
### Out-of-band storage and the `Crate` type ### Out-of-band storage and the `Crate` type
The top-level data-structure in the HIR is the `Crate`, which stores The top-level data-structure in the HIR is the `Crate`, which stores