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2019-06-04coqpp: add new ![] specifiers for structured proof interactionGaëtan Gilbert
![proof_stack] is equivalent to the old meaning of ![proof]: the body has type `pstate:Proof_global.t option -> Proof_global.t option` The other specifiers are for the following body types: ~~~ ![open_proof] `is_ontop:bool -> pstate` ![maybe_open_proof] `is_ontop:bool -> pstate option` ![proof] `pstate:pstate -> pstate` ![proof_opt_query] `pstate:pstate option -> unit` ![proof_query] `pstate:pstate -> unit` ~~~ The `is_ontop` is only used for the warning message when declaring a section variable inside a proof, we could also just stop warning. The specifiers look closely related to stm classifiers, but currently they're unconnected. Notably this means that a ![proof_query] doesn't have to be classified QUERY. ![proof_stack] is only used by g_rewrite/rewrite whose behaviour I don't fully understand, maybe we can drop it in the future. For compat we may want to consider keeping ![proof] with its old meaning and using some new name for the new meaning. OTOH fixing plugins to be stricter is easier if we change it as the errors tell us where it's used.
2019-06-04Proof_global: pass only 1 pstate when we don't want the proof stackGaëtan Gilbert
Typically instead of [start_proof : ontop:Proof_global.t option -> bla -> Proof_global.t] we have [start_proof : bla -> Proof_global.pstate] and the pstate is pushed on the stack by a caller around the vernacentries/mlg level. Naming can be a bit awkward, hopefully it can be improved (maybe in a followup PR). We can see some patterns appear waiting for nicer combinators, eg in mlg we often only want to work with the current proof, not the stack. Behaviour should be similar modulo bugs, let's see what CI says.
2019-03-27[vernac] [stm] Tweak `with_fail` and hopefully fix the semantics.Emilio Jesus Gallego Arias
We try to do a bit of cleanup for the `with_fail` function, this still is delicate code.
2019-03-27[vernac] Adapt to removal of imperative proof state.Emilio Jesus Gallego Arias
2019-01-24[STM] explicit handling of parsing statesEnrico Tassi
DAG nodes hold now a system state and a parsing state. The latter is always passed to the parser. This paves the way to decoupling the effect of commands on the parsing state and the system state, and hence never force to interpret, say, Notation. Handling proof modes is now done explicitly in the STM, not by interpreting VernacStartLemma. Similarly Notation execution could be split in two phases in order to obtain a parsing state without fully executing it (that requires executing all commands before it). Co-authored-by: Maxime Dénès <maxime.denes@inria.fr> Co-authored-by: Emilio Jesus Gallego Arias <e+git@x80.org>
2018-12-21Fix shallow flag in vernac stateMaxime Dénès
Was incorrect due to a leftover in #9220.
2018-12-13Move shallow state logic to the function preparing state for workersMaxime Dénès
2018-02-27Update headers following #6543.Théo Zimmermann
2017-12-04[vernac] Couple of tweaks missing from previous PRs.Emilio Jesus Gallego Arias
In particular we must invalidate the state cache in the case of an exception.
2017-11-29[proof] [api] Rename proof types in preparation for functionalization.Emilio Jesus Gallego Arias
In particular `Proof_global.t` will become a first class object for the upper parts of the system in a next commit.
2017-11-22[plugin] Encapsulate modifiers to vernac commands.Emilio Jesus Gallego Arias
This is a continuation on #6183 and another step towards a more functional interpretation of commands. In particular, this should allow us to remove the locality hack.
2017-11-19[plugins] Prepare plugin API for functional handling of state.Emilio Jesus Gallego Arias
To this purpose we allow plugins to register functions that will modify the state. This is not used yet, but will be used soon when we remove the global handling of the proof state.