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[Bug rust/21893] template_argument(0) gives syntax error
- From: "tromey at sourceware dot org" <sourceware-bugzilla at sourceware dot org>
- To: gdb-prs at sourceware dot org
- Date: Wed, 02 Aug 2017 23:34:53 +0000
- Subject: [Bug rust/21893] template_argument(0) gives syntax error
- Auto-submitted: auto-generated
- References: <bug-21893-4717@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=21893
--- Comment #1 from Tom Tromey <tromey at sourceware dot org> ---
This happens because rustc doesn't emit DW_AT_template_type_param for
the HashMap type.
Then it interacts with a weird gdb/python thing -- in earlier times gcc
also did not emit this template information, so the first iteration of
this python layer code hacked around the omission by parsing the C++
name and extracting the type names. This code remains, so it still tries
to do this as a fallback.
I think this is apropos: https://github.com/rust-lang/rust/issues/9224
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