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Also regular overloading works now, by counting remaining unknowns as equal during overload filtering time (so that function calls as statements, which get an inferenced return type of _unknown can match a function with any return type

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Nathan Braswell
2018-09-24 00:21:39 -04:00
parent 2148577523
commit 4dcf102cb0
2 changed files with 10 additions and 8 deletions
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k.krak
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@@ -213,7 +213,7 @@ fun main(argc: int, argv: **char): int {
var unify: fun(*binding<type>, *binding<type>): void = fun(t1: *binding<type>, t2: *binding<type>) {
println("trying to unify " + t1->bound_to->to_string() + " and " + t2->bound_to->to_string())
if (t1->bound_to->equality(t2->bound_to, false) || t1->bound_to->is_unknown())
if (t1->bound_to->equality(t2->bound_to, false, false) || t1->bound_to->is_unknown())
t1->set(t2->bound_to)
else if (t2->bound_to->is_unknown())
t2->set(t1->bound_to)
@@ -247,7 +247,7 @@ fun main(argc: int, argv: **char): int {
match (t->data) {
ast::_binding(b) if (!t->data._binding.second->bound()) {
println("Attempting to use our inferenced type " + unbound_types[t]->bound_to->to_string() + " to decide what to bind " + to_string(t->data) + " to form options:")
var filtered_options = multiple_binding_options[t].filter(fun(p: *tree<ast>): bool return unbound_types[t]->bound_to->equality(get_type(p)->bound_to, false);)
var filtered_options = multiple_binding_options[t].filter(fun(p: *tree<ast>): bool return unbound_types[t]->bound_to->equality(get_type(p)->bound_to, false, true);)
multiple_binding_options[t].for_each(fun(p: *tree<ast>) {
println("\t" + to_string(p->data) + " of type " + get_type(p)->bound_to->to_string())
})