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Write explanations of AST refactor in compiler series

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This commit is contained in:
Danila Fedorin
2019-10-08 21:42:25 -07:00
parent e054cb98cc
commit e4bf3a8672
6 changed files with 101 additions and 15 deletions
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18
06/definition.cpp
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@@ -24,16 +24,23 @@ void definition_defn::typecheck_second(type_mgr& mgr, const type_env& env) const
type_it++;
}
type_ptr body_type = body->typecheck(mgr, new_env);
type_ptr body_type = body->typecheck_common(mgr, new_env);
mgr.unify(return_type, body_type);
}
void definition_defn::resolve(const type_mgr& mgr) const {
body->resolve_common(mgr);
}
void definition_data::typecheck_first(type_mgr& mgr, type_env& env) {
type_ptr return_type = type_ptr(new type_base(name));
type_data* this_type = new type_data(name);
type_ptr return_type = type_ptr(this_type);
int next_tag = 0;
for(auto& constructor : constructors) {
type_ptr full_type = return_type;
this_type->constructors[constructor->name] = { next_tag++ };
type_ptr full_type = return_type;
for(auto it = constructor->types.rbegin(); it != constructor->types.rend(); it++) {
type_ptr type = type_ptr(new type_base(*it));
full_type = type_ptr(new type_arr(type, full_type));
@@ -46,3 +53,8 @@ void definition_data::typecheck_first(type_mgr& mgr, type_env& env) {
void definition_data::typecheck_second(type_mgr& mgr, const type_env& env) const {
// Nothing
}
void definition_data::resolve(const type_mgr& mgr) const {
// Nothing
}