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consolidate freeze functionality into dependent_expr_state

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rename size() to qtail() and introduce shortcuts
ensure tactic goals are not updated if they are in inconsistent state (because indices could be invalidated)
This commit is contained in:
Nikolaj Bjorner 2022-11-30 08:35:29 +07:00
parent 73a652cf4b
commit bec3acd146
21 changed files with 223 additions and 93 deletions
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7
src/tactic/dependent_expr_state_tactic.h
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@ -42,6 +42,7 @@ class dependent_expr_state_tactic : public tactic, public dependent_expr_state {
public:
dependent_expr_state_tactic(ast_manager& m, params_ref const& p, dependent_expr_simplifier_factory* f):
dependent_expr_state(m),
m(m),
m_params(p),
m_factory(f),
@ -52,7 +53,7 @@ public:
/**
* size(), [](), update() and inconsisent() implement the abstract interface of dependent_expr_state
*/
unsigned size() const override { return m_goal->size(); }
unsigned qtail() const override { return m_goal->size(); }
dependent_expr const& operator[](unsigned i) override {
m_dep = dependent_expr(m, m_goal->form(i), m_goal->dep(i));
@ -60,11 +61,15 @@ public:
}
void update(unsigned i, dependent_expr const& j) override {
if (inconsistent())
return;
auto [f, d] = j();
m_goal->update(i, f, nullptr, d);
}
void add(dependent_expr const& j) override {
if (inconsistent())
return;
auto [f, d] = j();
m_goal->assert_expr(f, nullptr, d);
}