symtab: use longjmp() for errors and avoid intermediate table.#330

Merged

haberman merged 3 commits intoprotocolbuffers:masterfrom haberman:symtab-longjmp

Nov 1, 2020

+428-474

Commits on Oct 31, 2020

Commits on Nov 1, 2020

symtab: use longjmp() for errors and avoid intermediate table.
haberman
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