The MinGW clang job links with a GNU ld that cannot relocate an object
with more than 32767 sections. unit-regression2, unit-regression3 and
unit-msgpack went over it:
- At -O0, the parser and binary reader for parse(), accept() and
from_*() still emitted the stubs that stand in for recovering, and
the parser referenced its recovery helpers from code that never runs.
The stubs are now always inlined, and the parser reaches its helpers
through the same allow_recovery tag as the stubs, so that this code
is not even instantiated there. This removes about 300 sections from
unit-msgpack.
- Every sax_parse call instantiates the parser and binary reader that
recover from errors. The tests that call it move from
unit-regression2.cpp (#3989) and unit-regression3.cpp (#5676) into
unit-sax_parse.cpp, like unit-explicit_instantiation.cpp got a file
of its own (#5511), and CONTRIBUTING.md points there.
Section counts of the MinGW Debug objects (clang 19, -g0), develop / PR:
unit-msgpack 32281 / 32558, unit-regression2 31272 / 31278,
unit-regression3 32392 / 27462, unit-sax_parse - / 19836.
Signed-off-by: Niels Lohmann <mail@nlohmann.me>
