Manually cleanup token stream when macro expansion aborts.#100250
Merged
bors merged 2 commits intorust-lang:masterfrom Sep 20, 2022
Merged
Manually cleanup token stream when macro expansion aborts.#100250bors merged 2 commits intorust-lang:masterfrom
bors merged 2 commits intorust-lang:masterfrom
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In case of syntax error in macro expansion, the expansion code can decide to stop processing anything. In that case, the token stream is malformed. This makes downstream users, like derive macros, ICE.
In this case, this PR manually cleans up the token stream by closing all currently open delimiters.
Fixes #96818.
Fixes #80447.
Fixes #81920.
Fixes #91023.