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| author | Tshepang Lekhonkhobe <tshepang@gmail.com> | 2020-04-04 09:37:39 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-04-04 09:37:39 +0200 |
| commit | e93f50cf0d5002c0c59e4c8d4ee22d0afef824ac (patch) | |
| tree | 8de56439e4cbc03bec25c461ecdfcd96c94664d1 /src/doc/rustc-dev-guide | |
| parent | 62ef95760ac3b0ccc6f58b31e94831415abbc45a (diff) | |
| download | rust-e93f50cf0d5002c0c59e4c8d4ee22d0afef824ac.tar.gz rust-e93f50cf0d5002c0c59e4c8d4ee22d0afef824ac.zip | |
add pre-requisite for calling into compiler API (#663)
Diffstat (limited to 'src/doc/rustc-dev-guide')
| -rw-r--r-- | src/doc/rustc-dev-guide/src/rustc-driver-interacting-with-the-ast.md | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/doc/rustc-dev-guide/src/rustc-driver-interacting-with-the-ast.md b/src/doc/rustc-dev-guide/src/rustc-driver-interacting-with-the-ast.md index 51d5cb6d30f..1749c9db413 100644 --- a/src/doc/rustc-dev-guide/src/rustc-driver-interacting-with-the-ast.md +++ b/src/doc/rustc-dev-guide/src/rustc-driver-interacting-with-the-ast.md @@ -4,6 +4,10 @@ ## Getting the type of an expression +NOTE: For the example to compile, you will need to first run the following: + + rustup component add rustc-dev + To get the type of an expression, use the `global_ctxt` to get a `TyCtxt`: ```rust |