diff options
| -rw-r--r-- | src/doc/rustc/src/json.md | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/doc/rustc/src/json.md b/src/doc/rustc/src/json.md index c46380f1505..5dee603142d 100644 --- a/src/doc/rustc/src/json.md +++ b/src/doc/rustc/src/json.md @@ -59,8 +59,11 @@ Diagnostics have the following format: "spans": [ { /* The file where the span is located. - For spans located within a macro expansion, this will be the - name of the expanded macro in the format "<MACRONAME macros>". + Note that this path may not exist. For example, if the path + points to the standard library, and the rust src is not + available in the sysroot, then it may point to a non-existent + file. Beware that this may also point to the source of an + external crate. */ "file_name": "lib.rs", /* The byte offset where the span starts (0-based, inclusive). */ |