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Require Import Crypto.Util.Tactics.TransparentAssert.
Ltac cache_term_with_type_by_gen ty abstract_tac id :=
let id' := fresh id in
let dummy := match goal with
| _ => transparent assert ( id' : ty );
[ abstract_tac id'
| ]
end in
let ret := (eval cbv [id'] in id') in
let dummy := match goal with
| _ => clear id'
end in
ret.
Ltac cache_term_with_type_by ty tac id :=
cache_term_with_type_by_gen ty ltac:(fun id' => transparent_abstract tac using id') id.
Ltac cache_proof_with_type_by ty tac id :=
cache_term_with_type_by_gen ty ltac:(fun id' => abstract tac using id') id.
Ltac cache_term_by tac id :=
let ty := open_constr:(_) in
cache_term_with_type_by ty tac id.
Ltac cache_proof_by ty tac id :=
let ty := open_constr:(_) in
cache_proof_with_type_by ty tac id.
Ltac cache_term term id :=
let ty := type of term in
cache_term_with_type_by ty ltac:(exact_no_check term) id.
Ltac cache_sig_red_with_type_by ty tac red_tac red_cast_no_check id :=
let id' := fresh id in
let id' := fresh id in
let id' := cache_term_with_type_by ty tac id' in
let P := lazymatch ty with sig ?P => P end in
cache_term_with_type_by
ty
ltac:(let v := (eval cbv beta iota delta [id' proj1_sig] in (proj1_sig id')) in
let v := red_tac v in
(exists v);
abstract (
refine (eq_rect _ P (proj2_sig id') _ _);
red_cast_no_check (eq_refl v)
))
id.
Ltac cache_sig_red_with_type ty term red_tac red_cast_no_check id :=
let id' := fresh id in
let id' := fresh id in
let id' := cache_term term id' in
let P := lazymatch ty with sig ?P => P end in
cache_term_with_type_by
ty
ltac:(let v := (eval cbv beta iota delta [id' proj1_sig] in (proj1_sig id')) in
let v := red_tac v in
(exists v);
abstract (
refine (eq_rect _ P (proj2_sig id') _ _);
red_cast_no_check (eq_refl v)
))
id.
Ltac cache_sig_with_type_by ty tac id
:= cache_sig_red_with_type_by ty tac ltac:(fun v => v) exact_no_check id.
Ltac cache_vm_sig_with_type_by ty tac id
:= cache_sig_red_with_type_by ty tac ltac:(fun v => eval vm_compute in v) vm_cast_no_check id.
Ltac cache_sig_with_type ty term id
:= cache_sig_red_with_type ty term ltac:(fun v => v) exact_no_check id.
Ltac cache_vm_sig_with_type ty term id
:= cache_sig_red_with_type ty term ltac:(fun v => eval vm_compute in v) vm_cast_no_check id.
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