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clean up and add duplicate function/parameter/class name test

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This commit is contained in:
ychenfo 2021-08-23 14:13:48 +08:00
parent 7b1fe36e90
commit 39f300b62a
1 changed files with 110 additions and 57 deletions
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81
nac3core/src/top_level.rs
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@ -61,7 +61,7 @@ pub mod top_level_type_annotation_info {
if results.len() == 1 {
results[0].clone()
} else {
Err("cannot be parsed the type annotation without ambiguity".into())
Err("cannot parsed the type annotation without ambiguity".into())
}
}
@ -113,11 +113,11 @@ pub mod top_level_type_annotation_info {
(name.clone(), subst_ty)
})
.collect::<HashMap<String, Type>>();
tobj_fields.extend(fields.iter().map(|(name, ty)| {
let subst_ty = unifier.subst(*ty, &subst).unwrap_or(*ty);
(name.clone(), subst_ty)
}));
Ok(unifier.add_ty(TypeEnum::TObj {
obj_id: *id,
fields: tobj_fields.into(),
@ -146,8 +146,8 @@ pub mod top_level_type_annotation_info {
.iter()
.map(|(name, ty, _)| (name.clone(), *ty))
.collect::<HashMap<String, Type>>();
tobj_fields.extend(fields.clone().into_iter());
Ok(unifier.add_ty(TypeEnum::TObj {
obj_id: *obj_id,
fields: tobj_fields.into(),
@ -268,11 +268,11 @@ pub mod top_level_type_annotation_info {
Err("function cannot be used as a type".into())
}
} else {
Err("unsupported expression type".into())
Err("unsupported expression type for class name".into())
}
}
_ => Err("unsupported expression type".into()),
_ => Err("unsupported expression type for concretized class".into()),
}
}
@ -295,7 +295,7 @@ pub mod top_level_type_annotation_info {
slice.as_ref(),
)?;
if !matches!(def, TypeAnnotation::ConcretizedCustomClassKind { .. }) {
unreachable!("should must be concretized custom class kind")
unreachable!("must be concretized custom class kind in the virtual")
}
Ok(TypeAnnotation::VirtualKind(def.into()))
}
@ -315,7 +315,11 @@ pub mod top_level_type_annotation_info {
let ty = resolver
.get_symbol_type(unifier, primitives, id)
.ok_or_else(|| "unknown type variable name".to_string())?;
if let TypeEnum::TVar { .. } = unifier.get_ty(ty).as_ref() {
Ok(TypeAnnotation::TypeVarKind(ty))
} else {
Err("not a type variable identifier".into())
}
} else {
Err("unsupported expression for type variable".into())
}
@ -376,10 +380,7 @@ pub struct TopLevelComposer {
pub unifier: Unifier,
// primitive store
pub primitives_ty: PrimitiveStore,
// mangled class method name to def_id
// pub class_method_to_def_id: HashMap<String, DefinitionId>,
// record the def id of the classes whoses fields and methods are to be analyzed
// pub to_be_analyzed_class: Vec<DefinitionId>,
// keyword list to prevent same custom def class name
pub keyword_list: Vec<String>,
}
@ -522,11 +523,17 @@ impl TopLevelComposer {
ast: ast::Stmt<()>,
resolver: Option<Arc<Mutex<dyn SymbolResolver + Send + Sync>>>,
) -> Result<(String, DefinitionId), String> {
let mut defined_class_name: HashSet<String> = HashSet::new();
let mut defined_class_method_name: HashSet<String> = HashSet::new();
let mut defined_function_name: HashSet<String> = HashSet::new();
match &ast.node {
ast::StmtKind::ClassDef { name, body, .. } => {
if self.keyword_list.contains(name) {
return Err("cannot use keyword as a class name".into());
}
if !defined_class_name.insert(name.clone()) {
return Err("duplicate definition of class".into());
}
let class_name = name.to_string();
let class_def_id = self.definition_ast_list.len();
@ -556,6 +563,11 @@ impl TopLevelComposer {
let mut class_method_index_offset = 0;
for b in body {
if let ast::StmtKind::FunctionDef { name: method_name, .. } = &b.node {
let global_class_method_name =
Self::make_class_method_name(class_name.clone(), method_name);
if !defined_class_method_name.insert(global_class_method_name.clone()) {
return Err("duplicate class method definition".into());
}
let method_def_id = self.definition_ast_list.len() + {
class_method_index_offset += 1;
class_method_index_offset
@ -566,7 +578,7 @@ impl TopLevelComposer {
class_method_name_def_ids.push((
method_name.clone(),
RwLock::new(Self::make_top_level_function_def(
Self::make_class_method_name(class_name.clone(), method_name),
global_class_method_name,
// later unify with parsed type
dummy_method_type.0,
resolver.clone(),
@ -610,6 +622,9 @@ impl TopLevelComposer {
ast::StmtKind::FunctionDef { name, .. } => {
let fun_name = name.to_string();
if !defined_function_name.insert(name.to_string()) {
return Err("duplicate top level function define".into());
}
// add to the definition list
self.definition_ast_list.push((
@ -792,7 +807,7 @@ impl TopLevelComposer {
b,
)?;
if let TypeAnnotation::ConcretizedCustomClassKind { .. } = base_ty {
if let TypeAnnotation::ConcretizedCustomClassKind { .. } = &base_ty {
// TODO: check to prevent cyclic base class
class_ancestors.push(base_ty);
} else {
@ -859,6 +874,13 @@ impl TopLevelComposer {
let resolver = resolver.deref().lock();
let function_resolver = resolver.deref();
let mut defined_paramter_name: HashSet<String> = HashSet::new();
let have_unique_fuction_parameter_name =
args.args.iter().all(|x| defined_paramter_name.insert(x.node.arg.clone()));
if !have_unique_fuction_parameter_name {
return Err("top level function have duplicate parameter name".into());
}
let arg_types = {
args.args
.iter()
@ -935,7 +957,7 @@ impl TopLevelComposer {
) -> Result<(), String> {
let mut class_def = class_def.write();
let (
_class_id,
class_id,
_class_name,
_class_bases_ast,
class_body_ast,
@ -980,12 +1002,20 @@ impl TopLevelComposer {
if let ast::StmtKind::FunctionDef { args, returns, name, body, .. } = &b.node {
let (method_dummy_ty, ..) =
Self::get_class_method_def_info(class_methods_def, name)?;
// TODO: handle self arg
let mut defined_paramter_name: HashSet<String> = HashSet::new();
let have_unique_fuction_parameter_name =
args.args.iter().all(|x| defined_paramter_name.insert(x.node.arg.clone()));
if !have_unique_fuction_parameter_name {
return Err("class method have duplicate parameter name".into());
}
// TODO: handle parameter with same name
let arg_type: Vec<FuncArg> = {
let mut result = Vec::new();
for x in &args.args {
let name = x.node.arg.clone();
if name != "self" {
let type_ann = {
let annotation_expr = x
.node
@ -1015,10 +1045,26 @@ impl TopLevelComposer {
// into the list for later unification
type_var_to_concrete_def.insert(dummy_func_arg.ty, type_ann.clone());
result.push(dummy_func_arg)
} else {
// if the parameter name is self
// python does not seem to enforce the name
// representing the self class object to be
// `self`, but we do it here
let dummy_func_arg = FuncArg {
name: "self".into(),
ty: unifier.get_fresh_var().0,
default_value: None,
};
type_var_to_concrete_def
.insert(dummy_func_arg.ty, TypeAnnotation::SelfTypeKind(*class_id));
result.push(dummy_func_arg);
}
}
result
};
let ret_type = {
if name != "__init__" {
let result = returns
.as_ref()
.ok_or_else(|| "method return type annotation needed".to_string())?
@ -1033,6 +1079,13 @@ impl TopLevelComposer {
let dummy_return_type = unifier.get_fresh_var().0;
type_var_to_concrete_def.insert(dummy_return_type, annotation.clone());
dummy_return_type
} else {
// if is the "__init__" function, the return type is self
let dummy_return_type = unifier.get_fresh_var().0;
type_var_to_concrete_def
.insert(dummy_return_type, TypeAnnotation::SelfTypeKind(*class_id));
dummy_return_type
}
};
// TODO: handle var map, to create a new copy of type var
// while tracking the type var associated with class