lean4-htt/src/stdlib_flags.h
Sebastian Graf 40e8f4c5fb
chore: turn on new do elaborator in Core (#12656)
This PR turns on the new `do` elaborator in Init, Lean, Std, Lake and
the testsuite.

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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-09 12:38:33 +00:00

31 lines
1.4 KiB
C++

#include "util/options.h"
namespace lean {
options get_default_options() {
options opts;
// see https://github.com/leanprover/lean4/blob/master/doc/dev/bootstrap.md#further-bootstrapping-complications
#if LEAN_IS_STAGE0 == 1
// set to true to generally avoid bootstrapping issues limited to proofs
opts = opts.update({"debug", "proofAsSorry"}, false);
// set to true to generally avoid bootstrapping issues in `omega` and `grind`
opts = opts.update({"debug", "terminalTacticsAsSorry"}, false);
// switch to `true` for ABI-breaking changes affecting meta code;
// see also next option!
opts = opts.update({"interpreter", "prefer_native"}, false);
// switch to `false` when enabling `prefer_native` should also affect use
// of built-in parsers in quotations; this is usually the case, but setting
// both to `true` may be necessary for handling non-builtin parsers with
// builtin elaborators
opts = opts.update({"internal", "parseQuotWithCurrentStage"}, true);
// changes to builtin parsers may also require toggling the following option if macros/syntax
// with custom precheck hooks were affected
opts = opts.update({"quotPrecheck"}, true);
opts = opts.update({"pp", "rawOnError"}, true);
// temporarily restrict new do elaborator to core, i.e. stage 0
opts = opts.update({"backward", "do", "legacy"}, false);
#endif
return opts;
}
}