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Diffstat (limited to 'dev/doc/changes.txt')
| -rw-r--r-- | dev/doc/changes.txt | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/dev/doc/changes.txt b/dev/doc/changes.txt index f54f3fcc8e..8ea1638c99 100644 --- a/dev/doc/changes.txt +++ b/dev/doc/changes.txt @@ -2,6 +2,12 @@ = CHANGES BETWEEN COQ V8.6 AND COQ V8.7 = ========================================= +* Ocaml * + +Coq is compiled with -safe-string enabled and requires plugins to do +the same. This means that code using `String` in an imperative way +will fail to compile now. They should switch to `Bytes.t` + * ML API * We renamed the following functions: @@ -27,6 +33,33 @@ The following type aliases where removed The module Constrarg was merged into Stdarg. +The following types have been moved and modified: + + local_binder -> local_binder_expr + glob_binder merged with glob_decl + +The following constructors have been renamed: + + LocalRawDef -> CLocalDef + LocalRawAssum -> CLocalAssum + LocalPattern -> CLocalPattern + +In Constrexpr_ops: + + Deprecating abstract_constr_expr in favor of mkCLambdaN, and + prod_constr_expr in favor of mkCProdN. Note: the first ones were + interpreting "(x y z:_)" as "(x:_) (y:_) (z:_)" while the second + ones were preserving the original sharing of the type. + +** Tactic API ** + +- pf_constr_of_global now returns a tactic instead of taking a continuation. + Thus it only generates one instance of the global reference, and it is the + caller's responsibility to perform a focus on the goal. + +- The tclWEAK_PROGRESS and tclNOTSAMEGOAL tacticals were removed. Their usecase + was very specific. Use tclPROGRESS instead. + ** Ltac API ** Many Ltac specific API has been moved in its own ltac/ folder. Amongst other @@ -39,6 +72,26 @@ important things: instead - Some printing functions were moved from Pptactic to Pputils - A part of Tacexpr has been moved to Tactypes +- The TacFun tactic expression constructor now takes a `Name.t list` for the + variable list rather than an `Id.t option list`. + +The folder itself has been turned into a plugin. This does not change much, +but because it is a packed plugin, it may wreak havoc for third-party plugins +depending on any module defined in the ltac/ directory. Namely, even if +everything looks OK at compile time, a plugin can fail to load at link time +because it mistakenly looks for a module Foo instead of Ltac_plugin.Foo, with +an error of the form: + +Error: while loading myplugin.cmxs, no implementation available for Foo. + +In particular, most EXTEND macros will trigger this problem even if they +seemingly do not use any Ltac module, as their expansion do. + +The solution is simple, and consists in adding a statement "open Ltac_plugin" +in each file using a Ltac module, before such a module is actually called. An +alternative solution would be to fully qualify Ltac modules, e.g. turning any +call to Tacinterp into Ltac_plugin.Tacinterp. Note that this solution does not +work for EXTEND macros though. ** Error handling ** @@ -50,6 +103,88 @@ important things: - The header parameter to `user_err` has been made optional. +** Pretty printing ** + +Some functions have been removed, see pretty printing below for more +details. + +* Pretty Printing and XML protocol * + +The type std_cmdpps has been reworked and made the canonical "Coq rich +document type". This allows for a more uniform handling of printing +(specially in IDEs). The main consequences are: + + - Richpp has been confined to IDE use. Most of previous uses of the + `richpp` type should be replaced now by `Pp.std_cmdpps`. Main API + has been updated. + + - The XML protocol will send a new message type of `pp`, which should + be rendered client-wise. + + - `Set Printing Width` is deprecated, now width is controlled + client-side. + + - `Pp_control` has removed. The new module `Topfmt` implements + console control for the toplevel. + + - The impure tag system in Pp has been removed. This also does away + with the printer signatures and functors. Now printers tag + unconditionally. + + - The following functions have been removed from `Pp`: + + val stras : int * string -> std_ppcmds + val tbrk : int * int -> std_ppcmds + val tab : unit -> std_ppcmds + val pifb : unit -> std_ppcmds + val comment : int -> std_ppcmds + val comments : ((int * int) * string) list ref + val eval_ppcmds : std_ppcmds -> std_ppcmds + val is_empty : std_ppcmds -> bool + val t : std_ppcmds -> std_ppcmds + val hb : int -> std_ppcmds + val vb : int -> std_ppcmds + val hvb : int -> std_ppcmds + val hovb : int -> std_ppcmds + val tb : unit -> std_ppcmds + val close : unit -> std_ppcmds + val tclose : unit -> std_ppcmds + val open_tag : Tag.t -> std_ppcmds + val close_tag : unit -> std_ppcmds + val msg_with : ... + + module Tag + +** Stm API ** + +- We have streamlined the `Stm` API, now `add` and `query` take a + `coq_parsable` instead a `string` so clients can have more control + over their input stream. As a consequence, their types have been + modified. + +- The main parsing entry point has also been moved to the + `Stm`. Parsing is considered a synchronous operation so it will + either succeed or raise an exception. + +- `Feedback` is now only emitted for asynchronous operations. As a + consequence, it always carries a valid stateid and the type has + changed to accommodate that. + +- A few unused hooks were removed due to cleanups, no clients known. + +** Toplevel and Vernacular API ** + +- The components related to vernacular interpretation have been moved + to their own folder `vernac/` whereas toplevel now contains the + proper toplevel shell and compiler. + +- Coq's toplevel has been ported to directly use the common `Stm` + API. The signature of a few functions has changed as a result. + +** XML Protocol ** + +- The legacy `Interp` call has been turned into a noop. + ========================================= = CHANGES BETWEEN COQ V8.5 AND COQ V8.6 = ========================================= |