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authorGravatar Siddharth Bhat <siddu.druid@gmail.com>2018-06-27 22:03:25 +0200
committerGravatar Siddharth Bhat <siddu.druid@gmail.com>2018-07-17 13:14:44 +0200
commit1300da19d13f7e46cf3a4b0b3396604ffc44a6d5 (patch)
tree577f1c1b6dbc64382a7623d77bc6e6756ed45a96 /engine
parentb799252775563b4f46f5ea39cbfc469759e7a296 (diff)
Change QuestionMark for better record field missing error message.
While we were adding a new field into `QuestionMark`, we decided to go ahead and refactor the constructor to hold an actual record. This record now holds the name, obligations, and whether the evar represents a missing record field. This is used to provide better error messages on missing record fields.
Diffstat (limited to 'engine')
-rw-r--r--engine/evar_kinds.ml11
-rw-r--r--engine/proofview.ml2
-rw-r--r--engine/termops.ml2
3 files changed, 12 insertions, 3 deletions
diff --git a/engine/evar_kinds.ml b/engine/evar_kinds.ml
index 12e2fda8e..bedfd0cbb 100644
--- a/engine/evar_kinds.ml
+++ b/engine/evar_kinds.ml
@@ -21,12 +21,21 @@ type matching_var_kind = FirstOrderPatVar of Id.t | SecondOrderPatVar of Id.t
type subevar_kind = Domain | Codomain | Body
+(* maybe this should be a Projection.t *)
+type record_field = { fieldname : Constant.t; recordname : Names.inductive }
+
+type question_mark = {
+ qm_obligation: obligation_definition_status;
+ qm_name: Name.t;
+ qm_record_field: record_field option;
+}
+
type t =
| ImplicitArg of GlobRef.t * (int * Id.t option)
* bool (** Force inference *)
| BinderType of Name.t
| NamedHole of Id.t (* coming from some ?[id] syntax *)
- | QuestionMark of obligation_definition_status * Name.t
+ | QuestionMark of question_mark
| CasesType of bool (* true = a subterm of the type *)
| InternalHole
| TomatchTypeParameter of inductive * int
diff --git a/engine/proofview.ml b/engine/proofview.ml
index b4afb6415..12d31e5f4 100644
--- a/engine/proofview.ml
+++ b/engine/proofview.ml
@@ -754,7 +754,7 @@ let mark_in_evm ~goal evd content =
- GoalEvar (morally not dependent)
- VarInstance (morally dependent of some name).
This is a heuristic for naming these evars. *)
- | loc, (Evar_kinds.QuestionMark (_,Names.Name id) |
+ | loc, (Evar_kinds.QuestionMark { Evar_kinds.qm_name=Names.Name id} |
Evar_kinds.ImplicitArg (_,(_,Some id),_)) -> loc, Evar_kinds.VarInstance id
| _, (Evar_kinds.VarInstance _ | Evar_kinds.GoalEvar) as x -> x
| loc,_ -> loc,Evar_kinds.GoalEvar }
diff --git a/engine/termops.ml b/engine/termops.ml
index 2b179c43b..e4c8ae66b 100644
--- a/engine/termops.ml
+++ b/engine/termops.ml
@@ -114,7 +114,7 @@ let pr_evar_suggested_name evk sigma =
| None -> match evi.evar_source with
| _,Evar_kinds.ImplicitArg (c,(n,Some id),b) -> id
| _,Evar_kinds.VarInstance id -> id
- | _,Evar_kinds.QuestionMark (_,Name id) -> id
+ | _,Evar_kinds.QuestionMark {Evar_kinds.qm_name = Name id} -> id
| _,Evar_kinds.GoalEvar -> Id.of_string "Goal"
| _ ->
let env = reset_with_named_context evi.evar_hyps (Global.env()) in