pyspec: add --reject-approximations CLI flag#1208
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Adds a strict mode for the Python frontend: every site that would silently approximate an unsupported construct as a havoc'd Hole or silently drop it instead raises a hard unsupportedConstruct error. Default-off for back-compat; the --reject-approximations flag on pyAnalyzeLaurel turns it on. Useful when running a verification you intend to trust: if the run succeeds with the flag on, no Hole was emitted along the way and no statement was silently dropped, so the obligation set is faithful to the source.
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Adds a strict mode for the Python frontend: every site that would
silently approximate an unsupported construct as a havoc'd Hole or
silently drop it instead raises a hard unsupportedConstruct error.
Default-off for back-compat; the --reject-approximations flag on
pyAnalyzeLaurel turns it on.
Useful when running a verification you intend to trust: if the run
succeeds with the flag on, no Hole was emitted along the way and no
statement was silently dropped, so the obligation set is faithful to
the source.