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nac3core: toplevel fix parse type annotation dead lock

This commit is contained in:
ychenfo 2021-09-12 03:01:56 +08:00
parent 03b5e51822
commit c7cb02b0f3
3 changed files with 239 additions and 70 deletions
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30
nac3core/src/toplevel/mod.rs
View File

@ -165,6 +165,7 @@ impl TopLevelComposer {
ast: ast::Stmt<()>,
resolver: Option<Arc<Box<dyn SymbolResolver + Send + Sync>>>,
) -> Result<(String, DefinitionId), String> {
// FIXME: different module same name?
let defined_class_name = &mut self.defined_class_name;
let defined_class_method_name = &mut self.defined_class_method_name;
let defined_function_name = &mut self.defined_function_name;
@ -423,13 +424,19 @@ impl TopLevelComposer {
// skip 5 to skip analyzing the primitives
for (class_def, class_ast) in self.definition_ast_list.iter_mut().skip(5) {
let mut class_def = class_def.write();
let (class_bases, class_ancestors, class_resolver) = {
if let TopLevelDef::Class { ancestors, resolver, .. } = class_def.deref_mut() {
let (
class_def_id,
class_bases,
class_ancestors,
class_resolver,
class_type_vars
) = {
if let TopLevelDef::Class { ancestors, resolver, object_id, type_vars, .. } = class_def.deref_mut() {
if let Some(ast::Located {
node: ast::StmtKind::ClassDef { bases, .. }, ..
}) = class_ast
{
(bases, ancestors, resolver)
(object_id, bases, ancestors, resolver, type_vars)
} else {
unreachable!("must be both class")
}
@ -469,6 +476,7 @@ impl TopLevelComposer {
unifier,
&self.primitives_ty,
b,
vec![(*class_def_id, class_type_vars.clone())].into_iter().collect()
)?;
if let TypeAnnotation::CustomClassKind { .. } = &base_ty {
@ -667,6 +675,8 @@ impl TopLevelComposer {
unifier,
primitives_store,
annotation,
// NOTE: since only class need this, for function, it should be fine
HashMap::new(),
)?;
let type_vars_within =
@ -713,6 +723,8 @@ impl TopLevelComposer {
unifier,
primitives_store,
return_annotation,
// NOTE: since only class need this, for function, it should be fine
HashMap::new(),
)?
};
@ -774,7 +786,7 @@ impl TopLevelComposer {
) -> Result<(), String> {
let mut class_def = class_def.write();
let (
_class_id,
class_id,
_class_name,
_class_bases_ast,
class_body_ast,
@ -809,7 +821,7 @@ impl TopLevelComposer {
unreachable!("here must be class def ast");
}
} else {
unreachable!("here must be class def ast");
unreachable!("here must be toplevel class def");
};
let class_resolver = class_resolver.as_ref().unwrap();
let class_resolver = class_resolver.as_ref();
@ -846,6 +858,9 @@ impl TopLevelComposer {
if name == "__init__" && !defined_paramter_name.contains("self") {
return Err("__init__ function must have a `self` parameter".into());
}
if !defined_paramter_name.contains("self") {
return Err("currently does not support static method".into())
}
let mut result = Vec::new();
for x in &args.args {
@ -864,6 +879,7 @@ impl TopLevelComposer {
unifier,
primitives,
annotation_expr,
vec![(class_id, class_type_vars_def.clone())].into_iter().collect(),
)?
};
// find type vars within this method parameter type annotation
@ -885,7 +901,7 @@ impl TopLevelComposer {
let dummy_func_arg = FuncArg {
name,
ty: unifier.get_fresh_var().0,
// TODO: symbol default value?
// TODO: default value?
default_value: None,
};
// push the dummy type and the type annotation
@ -906,6 +922,7 @@ impl TopLevelComposer {
unifier,
primitives,
result,
vec![(class_id, class_type_vars_def.clone())].into_iter().collect(),
)?;
// find type vars within this return type annotation
let type_vars_within =
@ -973,6 +990,7 @@ impl TopLevelComposer {
unifier,
primitives,
annotation.as_ref(),
vec![(class_id, class_type_vars_def.clone())].into_iter().collect(),
)?;
// find type vars within this return type annotation

134
nac3core/src/toplevel/test.rs
View File

@ -158,9 +158,9 @@ fn test_simple_function_analyze(source: Vec<&str>, tys: Vec<&str>, names: Vec<&s
class A():
def __init__(self):
self.a: int32 = 3
def fun(b: B):
def fun(self, b: B):
pass
def foo(a: T, b: V):
def foo(self, a: T, b: V):
pass
"},
indoc! {"
@ -172,7 +172,7 @@ fn test_simple_function_analyze(source: Vec<&str>, tys: Vec<&str>, names: Vec<&s
class C(A):
def __init__(self):
pass
def fun(b: B):
def fun(self, b: B):
a = 1
pass
"},
@ -346,7 +346,7 @@ fn test_simple_function_analyze(source: Vec<&str>, tys: Vec<&str>, names: Vec<&s
def __init__(self, v: V):
self.a: T = 1
self.b: V = v
def fun(a: T) -> V:
def fun(self, a: T) -> V:
pass
"},
indoc! {"
@ -414,6 +414,131 @@ fn test_simple_function_analyze(source: Vec<&str>, tys: Vec<&str>, names: Vec<&s
];
"list tuple generic"
)]
#[test_case(
vec![
indoc! {"
class A(Generic[T, V]):
def __init__(self, a: A[float, bool], b: B):
self.a: A[float, bool] = a
self.b: B = b
def fun(self, a: A[float, bool]) -> A[bool, int32]:
pass
"},
indoc! {"
class B(A[int64, bool]):
def __init__(self):
pass
def foo(self, b: B) -> B:
pass
def bar(self, a: A[list[B], int32]) -> tuple[A[virtual[A[B, int32]], bool], B]:
pass
"}
],
vec![
indoc! {"5: Class {
name: \"A\",
def_id: DefinitionId(5),
ancestors: [CustomClassKind { id: DefinitionId(5), params: [TypeVarKind(UnificationKey(100)), TypeVarKind(UnificationKey(101))] }],
fields: [(\"a\", \"class5[2->class2, 3->class3]\"), (\"b\", \"class9\")],
methods: [(\"__init__\", \"fn[[a=class5[2->class2, 3->class3], b=class9], class4]\", DefinitionId(6)), (\"fun\", \"fn[[a=class5[2->class2, 3->class3]], class5[2->class3, 3->class0]]\", DefinitionId(7))],
type_vars: [UnificationKey(100), UnificationKey(101)]
}"},
indoc! {"6: Function {
name: \"A__init__\",
sig: \"fn[[a=class5[2->class2, 3->class3], b=class9], class4]\",
var_id: [2, 3]
}"},
indoc! {"7: Function {
name: \"Afun\",
sig: \"fn[[a=class5[2->class2, 3->class3]], class5[2->class3, 3->class0]]\",
var_id: [2, 3]
}"},
indoc! {"8: Initializer { DefinitionId(5) }"},
indoc! {"9: Class {
name: \"B\",
def_id: DefinitionId(9),
ancestors: [CustomClassKind { id: DefinitionId(9), params: [] }, CustomClassKind { id: DefinitionId(5), params: [PrimitiveKind(UnificationKey(1)), PrimitiveKind(UnificationKey(3))] }],
fields: [(\"a\", \"class5[2->class2, 3->class3]\"), (\"b\", \"class9\")],
methods: [(\"__init__\", \"fn[[], class4]\", DefinitionId(10)), (\"fun\", \"fn[[a=class5[2->class2, 3->class3]], class5[2->class3, 3->class0]]\", DefinitionId(7)), (\"foo\", \"fn[[b=class9], class9]\", DefinitionId(11)), (\"bar\", \"fn[[a=class5[2->list[class9], 3->class0]], tuple[class5[2->virtual[class5[2->class9, 3->class0]], 3->class3], class9]]\", DefinitionId(12))],
type_vars: []
}"},
indoc! {"10: Function {
name: \"B__init__\",
sig: \"fn[[], class4]\",
var_id: []
}"},
indoc! {"11: Function {
name: \"Bfoo\",
sig: \"fn[[b=class9], class9]\",
var_id: []
}"},
indoc! {"12: Function {
name: \"Bbar\",
sig: \"fn[[a=class5[2->list[class9], 3->class0]], tuple[class5[2->virtual[class5[2->class9, 3->class0]], 3->class3], class9]]\",
var_id: []
}"},
indoc! {"13: Initializer { DefinitionId(9) }"},
];
"self1"
)]
#[test_case(
vec![
indoc! {"
class A(Generic[T]):
def __init__(self):
pass
def fun(self, a: A[T]) -> A[T]:
pass
"}
],
vec!["application of type vars to generic class is not currently supported"];
"err no type var in generic app"
)]
#[test_case(
vec![
indoc! {"
class A(B):
def __init__(self):
pass
"},
indoc! {"
class B(A):
def __init__(self):
pass
"}
],
vec!["cyclic inheritance detected"];
"cyclic1"
)]
#[test_case(
vec![
indoc! {"
class A(B[bool, int64]):
def __init__(self):
pass
"},
indoc! {"
class B(Generic[V, T], C[int32]):
def __init__(self):
pass
"},
indoc! {"
class C(Generic[T], A):
def __init__(self):
pass
"},
],
vec!["cyclic inheritance detected"];
"cyclic2"
)]
#[test_case(
vec![indoc! {"
class A:
@ -535,5 +660,4 @@ fn test_simple_class_analyze(source: Vec<&str>, res: Vec<&str>) {
}
}
}
}

145
nac3core/src/toplevel/type_annotation.rs
View File

@ -26,6 +26,8 @@ pub fn parse_ast_to_type_annotation_kinds<T>(
unifier: &mut Unifier,
primitives: &PrimitiveStore,
expr: &ast::Expr<T>,
// the key stores the type_var of this topleveldef::class, we only need this field here
mut locked: HashMap<DefinitionId, Vec<Type>>
) -> Result<TypeAnnotation, String> {
match &expr.node {
ast::ExprKind::Name { id, .. } => match id.as_str() {
@ -36,19 +38,26 @@ pub fn parse_ast_to_type_annotation_kinds<T>(
"None" => Ok(TypeAnnotation::PrimitiveKind(primitives.none)),
x => {
if let Some(obj_id) = resolver.get_identifier_def(x) {
let def = top_level_defs[obj_id.0].read();
if let TopLevelDef::Class { type_vars, .. } = &*def {
// also check param number here
if !type_vars.is_empty() {
return Err(format!(
"expect {} type variable parameter but got 0",
type_vars.len()
));
let type_vars = {
let def_read = top_level_defs[obj_id.0].try_read();
if let Some(def_read) = def_read {
if let TopLevelDef::Class { type_vars, .. } = &*def_read {
type_vars.clone()
} else {
return Err("function cannot be used as a type".into());
}
} else {
locked.get(&obj_id).unwrap().clone()
}
Ok(TypeAnnotation::CustomClassKind { id: obj_id, params: vec![] })
} else {
Err("function cannot be used as a type".into())
};
// check param number here
if !type_vars.is_empty() {
return Err(format!(
"expect {} type variable parameter but got 0",
type_vars.len()
));
}
Ok(TypeAnnotation::CustomClassKind { id: obj_id, params: vec![] })
} else if let Some(ty) = resolver.get_symbol_type(unifier, primitives, id) {
if let TypeEnum::TVar { .. } = unifier.get_ty(ty).as_ref() {
Ok(TypeAnnotation::TypeVarKind(ty))
@ -71,6 +80,7 @@ pub fn parse_ast_to_type_annotation_kinds<T>(
unifier,
primitives,
slice.as_ref(),
locked
)?;
if !matches!(def, TypeAnnotation::CustomClassKind { .. }) {
unreachable!("must be concretized custom class kind in the virtual")
@ -88,6 +98,7 @@ pub fn parse_ast_to_type_annotation_kinds<T>(
unifier,
primitives,
slice.as_ref(),
locked
)?;
Ok(TypeAnnotation::ListKind(def_ann.into()))
}
@ -106,6 +117,7 @@ pub fn parse_ast_to_type_annotation_kinds<T>(
unifier,
primitives,
e,
locked.clone()
)
})
.collect::<Result<Vec<_>, _>>()?;
@ -124,53 +136,63 @@ pub fn parse_ast_to_type_annotation_kinds<T>(
let obj_id = resolver
.get_identifier_def(id)
.ok_or_else(|| "unknown class name".to_string())?;
let def = top_level_defs[obj_id.0].read();
if let TopLevelDef::Class { type_vars, .. } = &*def {
// we do not check whether the application of type variables are compatible here
let param_type_infos = {
let params_ast = if let ast::ExprKind::Tuple { elts, .. } = &slice.node {
elts.iter().collect_vec()
let type_vars = {
let def_read = top_level_defs[obj_id.0].try_read();
if let Some(def_read) = def_read {
if let TopLevelDef::Class { type_vars, .. } = &*def_read {
type_vars.clone()
} else {
vec![slice.as_ref()]
};
if type_vars.len() != params_ast.len() {
return Err(format!(
"expect {} type parameters but got {}",
type_vars.len(),
params_ast.len()
));
}
let result = params_ast
.into_iter()
.map(|x| {
parse_ast_to_type_annotation_kinds(
resolver,
top_level_defs,
unifier,
primitives,
x,
)
})
.collect::<Result<Vec<_>, _>>()?;
// make sure the result do not contain any type vars
let no_type_var = result
.iter()
.all(|x| get_type_var_contained_in_type_annotation(x).is_empty());
if no_type_var {
result
} else {
return Err("application of type vars to generic class \
is not currently supported"
.into());
unreachable!("must be class here")
}
} else {
locked.get(&obj_id).unwrap().clone()
}
};
// we do not check whether the application of type variables are compatible here
let param_type_infos = {
let params_ast = if let ast::ExprKind::Tuple { elts, .. } = &slice.node {
elts.iter().collect_vec()
} else {
vec![slice.as_ref()]
};
if type_vars.len() != params_ast.len() {
return Err(format!(
"expect {} type parameters but got {}",
type_vars.len(),
params_ast.len()
));
}
let result = params_ast
.into_iter()
.map(|x| {
parse_ast_to_type_annotation_kinds(
resolver,
top_level_defs,
unifier,
primitives,
x,
{
locked.insert(obj_id, type_vars.clone());
locked.clone()
}
)
})
.collect::<Result<Vec<_>, _>>()?;
// allow type var in class generic application list
Ok(TypeAnnotation::CustomClassKind { id: obj_id, params: param_type_infos })
} else {
Err("function cannot be used as a type".into())
}
// make sure the result do not contain any type vars
let no_type_var = result
.iter()
.all(|x| get_type_var_contained_in_type_annotation(x).is_empty());
if no_type_var {
result
} else {
return Err("application of type vars to generic class \
is not currently supported"
.into());
}
};
Ok(TypeAnnotation::CustomClassKind { id: obj_id, params: param_type_infos })
} else {
Err("unsupported expression type for class name".into())
}
@ -180,6 +202,9 @@ pub fn parse_ast_to_type_annotation_kinds<T>(
}
}
// no need to have the `locked` parameter, unlike the `parse_ast_to_type_annotation_kinds`, since
// when calling this function, there should be no topleveldef::class being write, and this function
// also only read the toplevedefs
pub fn get_type_from_type_annotation_kinds(
top_level_defs: &[Arc<RwLock<TopLevelDef>>],
unifier: &mut Unifier,
@ -187,9 +212,10 @@ pub fn get_type_from_type_annotation_kinds(
ann: &TypeAnnotation,
) -> Result<Type, String> {
match ann {
TypeAnnotation::CustomClassKind { id, params } => {
let class_def = top_level_defs[id.0].read();
if let TopLevelDef::Class { fields, methods, type_vars, .. } = &*class_def {
TypeAnnotation::CustomClassKind { id: obj_id, params } => {
let def_read = top_level_defs[obj_id.0].read();
let class_def: &TopLevelDef = def_read.deref();
if let TopLevelDef::Class { fields, methods, type_vars, .. } = class_def {
if type_vars.len() != params.len() {
Err(format!(
"unexpected number of type parameters: expected {} but got {}",
@ -210,7 +236,8 @@ pub fn get_type_from_type_annotation_kinds(
.collect::<Result<Vec<_>, _>>()?;
let subst = {
// NOTE: check for compatible range here
// check for compatible range
// TODO: if allow type var to be applied, need more check
let mut result: HashMap<u32, Type> = HashMap::new();
for (tvar, p) in type_vars.iter().zip(param_ty) {
if let TypeEnum::TVar { id, range, meta: TypeVarMeta::Generic } =
@ -265,7 +292,7 @@ pub fn get_type_from_type_annotation_kinds(
// );
Ok(unifier.add_ty(TypeEnum::TObj {
obj_id: *id,
obj_id: *obj_id,
fields: RefCell::new(tobj_fields),
params: subst.into(),
}))