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nac3/nac3core/src/toplevel/helper.rs

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use super::*;
impl TopLevelComposer {
pub fn make_primitives() -> (PrimitiveStore, Unifier) {
let mut unifier = Unifier::new();
let int32 = unifier.add_ty(TypeEnum::TObj {
obj_id: DefinitionId(0),
fields: HashMap::new().into(),
params: HashMap::new().into(),
});
let int64 = unifier.add_ty(TypeEnum::TObj {
obj_id: DefinitionId(1),
fields: HashMap::new().into(),
params: HashMap::new().into(),
});
let float = unifier.add_ty(TypeEnum::TObj {
obj_id: DefinitionId(2),
fields: HashMap::new().into(),
params: HashMap::new().into(),
});
let bool = unifier.add_ty(TypeEnum::TObj {
obj_id: DefinitionId(3),
fields: HashMap::new().into(),
params: HashMap::new().into(),
});
let none = unifier.add_ty(TypeEnum::TObj {
obj_id: DefinitionId(4),
fields: HashMap::new().into(),
params: HashMap::new().into(),
});
let primitives = PrimitiveStore { int32, int64, float, bool, none };
crate::typecheck::magic_methods::set_primitives_magic_methods(&primitives, &mut unifier);
(primitives, unifier)
}
/// already include the definition_id of itself inside the ancestors vector
/// when first regitering, the type_vars, fields, methods, ancestors are invalid
pub fn make_top_level_class_def(
index: usize,
resolver: Option<Arc<Box<dyn SymbolResolver + Send + Sync>>>,
name: &str,
) -> TopLevelDef {
TopLevelDef::Class {
name: name.to_string(),
object_id: DefinitionId(index),
type_vars: Default::default(),
fields: Default::default(),
methods: Default::default(),
ancestors: Default::default(),
resolver,
}
}
/// when first registering, the type is a invalid value
pub fn make_top_level_function_def(
name: String,
ty: Type,
resolver: Option<Arc<Box<dyn SymbolResolver + Send + Sync>>>,
) -> TopLevelDef {
TopLevelDef::Function {
name,
signature: ty,
var_id: Default::default(),
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver,
}
}
pub fn make_class_method_name(mut class_name: String, method_name: &str) -> String {
class_name.push_str(method_name);
class_name
}
pub fn get_class_method_def_info(
class_methods_def: &[(String, Type, DefinitionId)],
method_name: &str,
) -> Result<(Type, DefinitionId), String> {
for (name, ty, def_id) in class_methods_def {
if name == method_name {
return Ok((*ty, *def_id));
}
}
Err(format!("no method {} in the current class", method_name))
}
/// get all base class def id of a class, excluding itself. \
/// this function should called only after the direct parent is set
/// and before all the ancestors are set
/// and when we allow single inheritance \
/// the order of the returned list is from the child to the deepest ancestor
pub fn get_all_ancestors_helper(
child: &TypeAnnotation,
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temp_def_list: &[Arc<RwLock<TopLevelDef>>],
) -> Vec<TypeAnnotation> {
let mut result: Vec<TypeAnnotation> = Vec::new();
let mut parent = Self::get_parent(child, temp_def_list);
while let Some(p) = parent {
parent = Self::get_parent(&p, temp_def_list);
result.push(p);
}
result
}
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fn get_parent(
child: &TypeAnnotation,
temp_def_list: &[Arc<RwLock<TopLevelDef>>],
) -> Option<TypeAnnotation> {
let child_id =
if let TypeAnnotation::CustomClassKind { id, .. } = child { *id } else { return None };
let child_def = temp_def_list.get(child_id.0).unwrap();
let child_def = child_def.read();
if let TopLevelDef::Class { ancestors, .. } = &*child_def {
Some(ancestors[0].clone())
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} else {
None
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}
}
}