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authorTaylor Cramer <cramertaylorj@gmail.com>2024-11-21 10:58:56 -0800
committerGitHub <noreply@github.com>2024-11-21 10:58:56 -0800
commitdd819cf4c7f57d4446cb0b66b8f2e25744dcce53 (patch)
treeb029c0506f573a92b78fefab1228c29b8461a4f8
parentf6841a6fa3c6a2d951f49d884d73c68cbb8b3923 (diff)
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Add instructions to test error code docs (#2145)
-rw-r--r--src/doc/rustc-dev-guide/src/diagnostics/error-codes.md9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/doc/rustc-dev-guide/src/diagnostics/error-codes.md b/src/doc/rustc-dev-guide/src/diagnostics/error-codes.md
index fc2fe190c20..1b6b87e4c8d 100644
--- a/src/doc/rustc-dev-guide/src/diagnostics/error-codes.md
+++ b/src/doc/rustc-dev-guide/src/diagnostics/error-codes.md
@@ -93,3 +93,12 @@ struct_span_code_err!(...)
 For an example of a PR adding an error code, see [#76143].
 
 [#76143]: https://github.com/rust-lang/rust/pull/76143
+
+## Running error code doctests
+
+To test the examples added in `rustc_error_codes/src/error_codes`, run the
+error index generator using:
+
+```
+./x test ./src/tools/error_index_generator
+```