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fix(library/scope): warning message, and old comment

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2014-06-02 18:08:46 -07:00
parent 5f3ac6287f
commit ab7469c175
1 changed files with 6 additions and 8 deletions
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14
src/library/scope.cpp
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@ -284,14 +284,12 @@ static bool is_inductive_type(expr const & t, list<inductive_decl> const & decls
}
// Add the extra universe levels and parameters to the inductive datatype \c t.
// For example, suppose the old number of arguments and levels is 1, and the datatype has one index.
// Then, t is of the form (T.{l} A I) where l and A are the existing levels and parameters, and I is the index.
// For example, suppose t is of the form (T.{l} A I) where l and A are the existing levels and parameters, and I is the index.
// In this instance, this procedure returns the term:
// (T.{l extra_ls} A extra_params I)
static expr update_inductive_type(expr const & t, unsigned old_num_params, levels const & extra_ls, dependencies const & extra_params) {
// (T.{extra_ls l} extra_params A I)
static expr update_inductive_type(expr const & t, levels const & extra_ls, dependencies const & extra_params) {
buffer<expr> args;
expr T = get_app_args(t, args);
lean_assert(old_num_params <= args.size());
lean_assert(is_constant(T));
expr new_T = update_constant(T, append(extra_ls, const_levels(T)));
buffer<expr> new_args;
@ -304,11 +302,11 @@ static expr update_inductive_type(expr const & t, unsigned old_num_params, level
// Add the extra universe levels and parameters to every occurrence in t of an inductive datatype in \c decls.
// See update_inductive_type and is_inductive_type.
static expr update_inductive_types(expr const & t, unsigned old_num_params, list<inductive_decl> const & decls,
static expr update_inductive_types(expr const & t, list<inductive_decl> const & decls,
levels const & extra_ls, dependencies const & extra_params) {
return replace(t, [&](expr const & e, unsigned) {
if (is_inductive_type(e, decls))
return some_expr(update_inductive_type(e, old_num_params, extra_ls, extra_params));
return some_expr(update_inductive_type(e, extra_ls, extra_params));
else
return none_expr();
});
@ -353,7 +351,7 @@ environment add_inductive(environment env,
ctx.add_decl_info(inductive_decl_name(d), extra_ls, extra_ps, new_type);
buffer<intro_rule> new_rules;
for (auto const & r : inductive_decl_intros(d)) {
expr new_rule_type = update_inductive_types(intro_rule_type(r), num_params, s_decls,
expr new_rule_type = update_inductive_types(intro_rule_type(r), s_decls,
extra_lvls, extra_ps);
new_rule_type = ctx.Pi(new_rule_type, extra_ps);
new_rules.push_back(intro_rule(intro_rule_name(r), new_rule_type));