nac3/nac3core/src/toplevel/test.rs

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use crate::{
location::Location,
symbol_resolver::{SymbolResolver, SymbolValue},
toplevel::DefinitionId,
typecheck::{
type_inferencer::PrimitiveStore,
typedef::{Type, Unifier},
},
};
use indoc::indoc;
use parking_lot::Mutex;
use rustpython_parser::{ast::fold::Fold, parser::parse_program};
use std::{collections::HashMap, sync::Arc};
use test_case::test_case;
use super::*;
struct ResolverInternal {
id_to_type: Mutex<HashMap<String, Type>>,
id_to_def: Mutex<HashMap<String, DefinitionId>>,
class_names: Mutex<HashMap<String, Type>>,
}
impl ResolverInternal {
fn add_id_def(&self, id: String, def: DefinitionId) {
self.id_to_def.lock().insert(id, def);
}
fn add_id_type(&self, id: String, ty: Type) {
self.id_to_type.lock().insert(id, ty);
}
}
struct Resolver(Arc<ResolverInternal>);
impl SymbolResolver for Resolver {
fn get_symbol_type(&self, _: &mut Unifier, _: &PrimitiveStore, str: &str) -> Option<Type> {
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let ret = self.0.id_to_type.lock().get(str).cloned();
if ret.is_none() {
// println!("unknown here resolver {}", str);
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}
ret
}
fn get_symbol_value(&self, _: &str) -> Option<SymbolValue> {
unimplemented!()
}
fn get_symbol_location(&self, _: &str) -> Option<Location> {
unimplemented!()
}
fn get_identifier_def(&self, id: &str) -> Option<DefinitionId> {
self.0.id_to_def.lock().get(id).cloned()
}
}
#[test_case(
vec![
indoc! {"
def fun(a: int32) -> int32:
return a
"},
indoc! {"
class A:
def __init__(self):
self.a: int32 = 3
"},
indoc! {"
class B:
def __init__(self):
self.b: float = 4.3
def fun(self):
self.b = self.b + 3.0
"},
indoc! {"
def foo(a: float):
a + 1.0
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"},
indoc! {"
class C(B):
def __init__(self):
self.c: int32 = 4
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self.a: bool = True
"}
];
"register"
)]
fn test_simple_register(source: Vec<&str>) {
let mut composer: TopLevelComposer = Default::default();
for s in source {
let ast = parse_program(s).unwrap();
let ast = ast[0].clone();
composer.register_top_level(ast, None, "".into()).unwrap();
}
}
#[test_case(
vec![
indoc! {"
def fun(a: int32) -> int32:
return a
"},
indoc! {"
def foo(a: float):
a + 1.0
"},
indoc! {"
def f(b: int64) -> int32:
return 3
"},
],
vec![
"fn[[a=0], 0]",
"fn[[a=2], 4]",
"fn[[b=1], 0]",
],
vec![
"fun",
"foo",
"f"
];
"function compose"
)]
fn test_simple_function_analyze(source: Vec<&str>, tys: Vec<&str>, names: Vec<&str>) {
let mut composer: TopLevelComposer = Default::default();
let internal_resolver = Arc::new(ResolverInternal {
id_to_def: Default::default(),
id_to_type: Default::default(),
class_names: Default::default(),
});
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let resolver = Arc::new(
Box::new(Resolver(internal_resolver.clone())) as Box<dyn SymbolResolver + Send + Sync>
);
for s in source {
let ast = parse_program(s).unwrap();
let ast = ast[0].clone();
let (id, def_id, ty) =
composer.register_top_level(ast, Some(resolver.clone()), "".into()).unwrap();
internal_resolver.add_id_def(id.clone(), def_id);
if let Some(ty) = ty {
internal_resolver.add_id_type(id, ty);
}
}
composer.start_analysis(true).unwrap();
for (i, (def, _)) in composer.definition_ast_list.iter().skip(composer.built_in_num).enumerate()
{
let def = &*def.read();
if let TopLevelDef::Function { signature, name, .. } = def {
let ty_str =
composer
.unifier
.stringify(*signature, &mut |id| id.to_string(), &mut |id| id.to_string());
assert_eq!(ty_str, tys[i]);
assert_eq!(name, names[i]);
}
}
}
#[test_case(
vec![
indoc! {"
class A():
a: int32
def __init__(self):
self.a = 3
def fun(self, b: B):
pass
def foo(self, a: T, b: V):
pass
"},
indoc! {"
class B(C):
def __init__(self):
pass
"},
indoc! {"
class C(A):
def __init__(self):
pass
def fun(self, b: B):
a = 1
pass
"},
indoc! {"
def foo(a: A):
pass
"},
indoc! {"
def ff(a: T) -> V:
pass
"}
],
vec![
indoc! {"5: Class {
name: \"A\",
def_id: DefinitionId(5),
ancestors: [CustomClassKind { id: DefinitionId(5), params: [] }],
fields: [(\"a\", \"class0\")],
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methods: [(\"__init__\", \"fn[[], class4]\", DefinitionId(6)), (\"fun\", \"fn[[b=class9], class4]\", DefinitionId(7)), (\"foo\", \"fn[[a=tvar2, b=tvar3], class4]\", DefinitionId(8))],
type_vars: []
}"},
indoc! {"6: Function {
name: \"A.__init__\",
sig: \"fn[[], class4]\",
var_id: []
}"},
indoc! {"7: Function {
name: \"A.fun\",
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sig: \"fn[[b=class9], class4]\",
var_id: []
}"},
indoc! {"8: Function {
name: \"A.foo\",
sig: \"fn[[a=tvar2, b=tvar3], class4]\",
var_id: [2, 3]
}"},
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indoc! {"9: Class {
name: \"B\",
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def_id: DefinitionId(9),
ancestors: [CustomClassKind { id: DefinitionId(9), params: [] }, CustomClassKind { id: DefinitionId(11), params: [] }, CustomClassKind { id: DefinitionId(5), params: [] }],
fields: [(\"a\", \"class0\")],
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methods: [(\"__init__\", \"fn[[], class4]\", DefinitionId(10)), (\"fun\", \"fn[[b=class9], class4]\", DefinitionId(13)), (\"foo\", \"fn[[a=tvar2, b=tvar3], class4]\", DefinitionId(8))],
type_vars: []
}"},
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indoc! {"10: Function {
name: \"B.__init__\",
sig: \"fn[[], class4]\",
var_id: []
}"},
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indoc! {"11: Class {
name: \"C\",
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def_id: DefinitionId(11),
ancestors: [CustomClassKind { id: DefinitionId(11), params: [] }, CustomClassKind { id: DefinitionId(5), params: [] }],
fields: [(\"a\", \"class0\")],
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methods: [(\"__init__\", \"fn[[], class4]\", DefinitionId(12)), (\"fun\", \"fn[[b=class9], class4]\", DefinitionId(13)), (\"foo\", \"fn[[a=tvar2, b=tvar3], class4]\", DefinitionId(8))],
type_vars: []
}"},
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indoc! {"12: Function {
name: \"C.__init__\",
sig: \"fn[[], class4]\",
var_id: []
}"},
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indoc! {"13: Function {
name: \"C.fun\",
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sig: \"fn[[b=class9], class4]\",
var_id: []
}"},
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indoc! {"14: Function {
name: \"foo\",
sig: \"fn[[a=class5], class4]\",
var_id: []
}"},
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indoc! {"15: Function {
name: \"ff\",
sig: \"fn[[a=tvar2], tvar3]\",
var_id: [2, 3]
}"},
];
"simple class compose"
)]
#[test_case(
vec![
indoc! {"
class Generic_A(Generic[V], B):
a: int64
def __init__(self):
self.a = 123123123123
def fun(self, a: int32) -> V:
pass
"},
indoc! {"
class B:
aa: bool
def __init__(self):
self.aa = False
def foo(self, b: T):
pass
"}
],
vec![
indoc! {"5: Class {
name: \"Generic_A\",
def_id: DefinitionId(5),
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ancestors: [CustomClassKind { id: DefinitionId(5), params: [TypeVarKind(UnificationKey(101))] }, CustomClassKind { id: DefinitionId(8), params: [] }],
fields: [(\"aa\", \"class3\"), (\"a\", \"class1\")],
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methods: [(\"__init__\", \"fn[[], class4]\", DefinitionId(6)), (\"foo\", \"fn[[b=tvar2], class4]\", DefinitionId(10)), (\"fun\", \"fn[[a=class0], tvar3]\", DefinitionId(7))],
type_vars: [UnificationKey(101)]
}"},
indoc! {"6: Function {
name: \"Generic_A.__init__\",
sig: \"fn[[], class4]\",
var_id: [3]
}"},
indoc! {"7: Function {
name: \"Generic_A.fun\",
sig: \"fn[[a=class0], tvar3]\",
var_id: [3]
}"},
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indoc! {"8: Class {
name: \"B\",
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def_id: DefinitionId(8),
ancestors: [CustomClassKind { id: DefinitionId(8), params: [] }],
fields: [(\"aa\", \"class3\")],
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methods: [(\"__init__\", \"fn[[], class4]\", DefinitionId(9)), (\"foo\", \"fn[[b=tvar2], class4]\", DefinitionId(10))],
type_vars: []
}"},
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indoc! {"9: Function {
name: \"B.__init__\",
sig: \"fn[[], class4]\",
var_id: []
}"},
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indoc! {"10: Function {
name: \"B.foo\",
sig: \"fn[[b=tvar2], class4]\",
var_id: [2]
}"},
];
"generic class"
)]
#[test_case(
vec![
indoc! {"
def foo(a: list[int32], b: tuple[T, float]) -> A[B, bool]:
pass
"},
indoc! {"
class A(Generic[T, V]):
a: T
b: V
def __init__(self, v: V):
self.a = 1
self.b = v
def fun(self, a: T) -> V:
pass
"},
indoc! {"
def gfun(a: A[list[float], int32]):
pass
"},
indoc! {"
class B:
def __init__(self):
pass
"}
],
vec![
indoc! {"5: Function {
name: \"foo\",
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sig: \"fn[[a=list[class0], b=tuple[tvar2, class2]], class6[2->class10, 3->class3]]\",
var_id: [2]
}"},
indoc! {"6: Class {
name: \"A\",
def_id: DefinitionId(6),
ancestors: [CustomClassKind { id: DefinitionId(6), params: [TypeVarKind(UnificationKey(100)), TypeVarKind(UnificationKey(101))] }],
fields: [(\"a\", \"tvar2\"), (\"b\", \"tvar3\")],
methods: [(\"__init__\", \"fn[[v=tvar3], class4]\", DefinitionId(7)), (\"fun\", \"fn[[a=tvar2], tvar3]\", DefinitionId(8))],
type_vars: [UnificationKey(100), UnificationKey(101)]
}"},
indoc! {"7: Function {
name: \"A.__init__\",
sig: \"fn[[v=tvar3], class4]\",
var_id: [2, 3]
}"},
indoc! {"8: Function {
name: \"A.fun\",
sig: \"fn[[a=tvar2], tvar3]\",
var_id: [2, 3]
}"},
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indoc! {"9: Function {
name: \"gfun\",
sig: \"fn[[a=class6[2->list[class2], 3->class0]], class4]\",
var_id: []
}"},
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indoc! {"10: Class {
name: \"B\",
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def_id: DefinitionId(10),
ancestors: [CustomClassKind { id: DefinitionId(10), params: [] }],
fields: [],
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methods: [(\"__init__\", \"fn[[], class4]\", DefinitionId(11))],
type_vars: []
}"},
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indoc! {"11: Function {
name: \"B.__init__\",
sig: \"fn[[], class4]\",
var_id: []
}"},
];
"list tuple generic"
)]
#[test_case(
vec![
indoc! {"
class A(Generic[T, V]):
a: A[float, bool]
b: B
def __init__(self, a: A[float, bool], b: B):
self.a = a
self.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))] }],
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fields: [(\"a\", \"class5[2->class2, 3->class3]\"), (\"b\", \"class8\")],
methods: [(\"__init__\", \"fn[[a=class5[2->class2, 3->class3], b=class8], 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__\",
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sig: \"fn[[a=class5[2->class2, 3->class3], b=class8], class4]\",
var_id: [2, 3]
}"},
indoc! {"7: Function {
name: \"A.fun\",
sig: \"fn[[a=class5[2->class2, 3->class3]], class5[2->class3, 3->class0]]\",
var_id: [2, 3]
}"},
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indoc! {"8: Class {
name: \"B\",
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def_id: DefinitionId(8),
ancestors: [CustomClassKind { id: DefinitionId(8), params: [] }, CustomClassKind { id: DefinitionId(5), params: [PrimitiveKind(UnificationKey(1)), PrimitiveKind(UnificationKey(3))] }],
fields: [(\"a\", \"class5[2->class2, 3->class3]\"), (\"b\", \"class8\")],
methods: [(\"__init__\", \"fn[[], class4]\", DefinitionId(9)), (\"fun\", \"fn[[a=class5[2->class2, 3->class3]], class5[2->class3, 3->class0]]\", DefinitionId(7)), (\"foo\", \"fn[[b=class8], class8]\", DefinitionId(10)), (\"bar\", \"fn[[a=class5[2->list[class8], 3->class0]], tuple[class5[2->virtual[class5[2->class8, 3->class0]], 3->class3], class8]]\", DefinitionId(11))],
type_vars: []
}"},
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indoc! {"9: Function {
name: \"B.__init__\",
sig: \"fn[[], class4]\",
var_id: []
}"},
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indoc! {"10: Function {
name: \"B.foo\",
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sig: \"fn[[b=class8], class8]\",
var_id: []
}"},
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indoc! {"11: Function {
name: \"B.bar\",
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sig: \"fn[[a=class5[2->list[class8], 3->class0]], tuple[class5[2->virtual[class5[2->class8, 3->class0]], 3->class3], class8]]\",
var_id: []
}"},
];
"self1"
)]
#[test_case(
vec![
indoc! {"
class A(Generic[T]):
a: int32
b: T
c: A[int64]
def __init__(self, t: T):
self.a = 3
self.b = T
def fun(self, a: int32, b: T) -> list[virtual[B[bool]]]:
pass
def foo(self, c: C):
pass
"},
indoc! {"
class B(Generic[V], A[float]):
d: C
def __init__(self):
pass
def fun(self, a: int32, b: T) -> list[virtual[B[bool]]]:
# override
pass
"},
indoc! {"
class C(B[bool]):
e: int64
def __init__(self):
pass
"}
],
vec![
indoc! {"5: Class {
name: \"A\",
def_id: DefinitionId(5),
ancestors: [CustomClassKind { id: DefinitionId(5), params: [TypeVarKind(UnificationKey(100))] }],
fields: [(\"a\", \"class0\"), (\"b\", \"tvar2\"), (\"c\", \"class5[2->class1]\")],
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methods: [(\"__init__\", \"fn[[t=tvar2], class4]\", DefinitionId(6)), (\"fun\", \"fn[[a=class0, b=tvar2], list[virtual[class9[3->class3]]]]\", DefinitionId(7)), (\"foo\", \"fn[[c=class12], class4]\", DefinitionId(8))],
type_vars: [UnificationKey(100)]
}"},
indoc! {"6: Function {
name: \"A.__init__\",
sig: \"fn[[t=tvar2], class4]\",
var_id: [2]
}"},
indoc! {"7: Function {
name: \"A.fun\",
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sig: \"fn[[a=class0, b=tvar2], list[virtual[class9[3->class3]]]]\",
var_id: [2]
}"},
indoc! {"8: Function {
name: \"A.foo\",
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sig: \"fn[[c=class12], class4]\",
var_id: [2]
}"},
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indoc! {"9: Class {
name: \"B\",
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def_id: DefinitionId(9),
ancestors: [CustomClassKind { id: DefinitionId(9), params: [TypeVarKind(UnificationKey(101))] }, CustomClassKind { id: DefinitionId(5), params: [PrimitiveKind(UnificationKey(2))] }],
fields: [(\"a\", \"class0\"), (\"b\", \"tvar2\"), (\"c\", \"class5[2->class1]\"), (\"d\", \"class12\")],
methods: [(\"__init__\", \"fn[[], class4]\", DefinitionId(10)), (\"fun\", \"fn[[a=class0, b=tvar2], list[virtual[class9[3->class3]]]]\", DefinitionId(11)), (\"foo\", \"fn[[c=class12], class4]\", DefinitionId(8))],
type_vars: [UnificationKey(101)]
}"},
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indoc! {"10: Function {
name: \"B.__init__\",
sig: \"fn[[], class4]\",
var_id: [3]
}"},
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indoc! {"11: Function {
name: \"B.fun\",
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sig: \"fn[[a=class0, b=tvar2], list[virtual[class9[3->class3]]]]\",
var_id: [2, 3]
}"},
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indoc! {"12: Class {
name: \"C\",
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def_id: DefinitionId(12),
ancestors: [CustomClassKind { id: DefinitionId(12), params: [] }, CustomClassKind { id: DefinitionId(9), params: [PrimitiveKind(UnificationKey(3))] }, CustomClassKind { id: DefinitionId(5), params: [PrimitiveKind(UnificationKey(2))] }],
fields: [(\"a\", \"class0\"), (\"b\", \"tvar2\"), (\"c\", \"class5[2->class1]\"), (\"d\", \"class12\"), (\"e\", \"class1\")],
methods: [(\"__init__\", \"fn[[], class4]\", DefinitionId(13)), (\"fun\", \"fn[[a=class0, b=tvar2], list[virtual[class9[3->class3]]]]\", DefinitionId(11)), (\"foo\", \"fn[[c=class12], class4]\", DefinitionId(8))],
type_vars: []
}"},
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indoc! {"13: Function {
name: \"C.__init__\",
sig: \"fn[[], class4]\",
var_id: []
}"},
];
"inheritance_override"
)]
#[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:
pass
"}
],
vec!["5: Class {\nname: \"A\",\ndef_id: DefinitionId(5),\nancestors: [CustomClassKind { id: DefinitionId(5), params: [] }],\nfields: [],\nmethods: [],\ntype_vars: []\n}"];
"simple pass in class"
)]
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#[test_case(
vec![indoc! {"
class A:
def fun3(self):
pass
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"}],
vec!["function name `fun3` must not end with numbers"];
"err fun end with number"
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)]
#[test_case(
vec![indoc! {"
class A:
def __init__():
pass
"}],
vec!["__init__ function must have a `self` parameter"];
"err no self_1"
)]
#[test_case(
vec![
indoc! {"
class A(B, Generic[T], C):
def __init__(self):
pass
"},
indoc! {"
class B:
def __init__(self):
pass
"},
indoc! {"
class C:
def __init__(self):
pass
"}
],
vec!["a class def can only have at most one base class declaration and one generic declaration"];
"err multiple inheritance"
)]
#[test_case(
vec![
indoc! {"
class A(Generic[T]):
a: int32
b: T
c: A[int64]
def __init__(self, t: T):
self.a = 3
self.b = T
def fun(self, a: int32, b: T) -> list[virtual[B[bool]]]:
pass
"},
indoc! {"
class B(Generic[V], A[float]):
def __init__(self):
pass
def fun(self, a: int32, b: T) -> list[virtual[B[int32]]]:
# override
pass
"}
],
vec!["method has same name as ancestors' method, but incompatible type"];
"err_incompatible_inheritance_method"
)]
#[test_case(
vec![
indoc! {"
class A(Generic[T]):
a: int32
b: T
c: A[int64]
def __init__(self, t: T):
self.a = 3
self.b = T
def fun(self, a: int32, b: T) -> list[virtual[B[bool]]]:
pass
"},
indoc! {"
class B(Generic[V], A[float]):
a: int32
def __init__(self):
pass
def fun(self, a: int32, b: T) -> list[virtual[B[bool]]]:
# override
pass
"}
],
vec!["field `a` has already declared in the ancestor classes"];
"err_incompatible_inheritance_field"
)]
#[test_case(
vec![
indoc! {"
class A:
def __init__(self):
pass
"},
indoc! {"
class A:
a: int32
def __init__(self):
pass
"}
],
vec!["duplicate definition of class"];
"class same name"
)]
fn test_analyze(source: Vec<&str>, res: Vec<&str>) {
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let print = false;
let mut composer: TopLevelComposer = Default::default();
let internal_resolver = make_internal_resolver_with_tvar(
vec![
("T".into(), vec![]),
("V".into(), vec![composer.primitives_ty.bool, composer.primitives_ty.int32]),
("G".into(), vec![composer.primitives_ty.bool, composer.primitives_ty.int64]),
],
&mut composer.unifier,
print,
);
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let resolver = Arc::new(
Box::new(Resolver(internal_resolver.clone())) as Box<dyn SymbolResolver + Send + Sync>
);
for s in source {
let ast = parse_program(s).unwrap();
let ast = ast[0].clone();
let (id, def_id, ty) = {
match composer.register_top_level(ast, Some(resolver.clone()), "".into()) {
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Ok(x) => x,
Err(msg) => {
if print {
println!("{}", msg);
} else {
assert_eq!(res[0], msg);
}
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return;
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}
}
};
internal_resolver.add_id_def(id.clone(), def_id);
if let Some(ty) = ty {
internal_resolver.add_id_type(id, ty);
}
}
if let Err(msg) = composer.start_analysis(false) {
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if print {
println!("{}", msg);
} else {
assert_eq!(res[0], msg);
}
} else {
// skip 5 to skip primitives
for (i, (def, _)) in
composer.definition_ast_list.iter().skip(composer.built_in_num).enumerate()
{
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let def = &*def.read();
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if print {
println!(
"{}: {}\n",
i + 5,
def.to_string(
composer.unifier.borrow_mut(),
&mut |id| format!("class{}", id),
&mut |id| format!("tvar{}", id)
)
);
} else {
assert_eq!(
format!(
"{}: {}",
i + 5,
def.to_string(
composer.unifier.borrow_mut(),
&mut |id| format!("class{}", id.to_string()),
&mut |id| format!("tvar{}", id.to_string()),
)
),
res[i]
)
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}
}
}
}
#[test_case(
vec![
indoc! {"
def fun(a: int32, b: int32) -> int32:
return a + b
"},
indoc! {"
def fib(n: int32) -> int32:
if n <= 2:
return 1
a = fib(n - 1)
b = fib(n - 2)
return fib(n - 1)
"}
],
vec![];
"simple function"
)]
#[test_case(
vec![
indoc! {"
class A:
a: int32
def __init__(self):
self.a = 3
def fun(self) -> int32:
b = self.a + 3
return b * self.a
def clone(self) -> A:
SELF = self
return SELF
def sum(self) -> int32:
if self.a == 0:
return self.a + self
else:
a = self.a
self.a = self.a - 1
return a + self.sum()
def fib(self, a: int32) -> int32:
if a <= 2:
return 1
return self.fib(a - 1) + self.fib(a - 2)
"},
indoc! {"
def fun(a: A) -> int32:
return a.fun() + 2
"}
],
vec![];
"simple class body"
)]
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#[test_case(
vec![
indoc! {"
def fun(a: V, c: G, t: T) -> V:
b = a
cc = c
ret = fun(b, cc, t)
return ret * ret
"},
indoc! {"
def sum3(l: list[V]) -> V:
return l[0] + l[1] + l[2]
"},
indoc! {"
def sum_sq_pair(p: tuple[V, V]) -> list[V]:
a = p[0]
b = p[1]
a = a**a
b = b**b
return [a, b]
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"}
],
vec![];
"type var fun"
)]
#[test_case(
vec![
indoc! {"
class A(Generic[G]):
a: G
b: bool
def __init__(self, aa: G):
self.a = aa
self.b = True
def fun(self, a: G) -> list[G]:
ret = [a, self.a]
return ret if self.b else self.fun(self.a)
"}
],
vec![];
"type var class"
)]
fn test_inference(source: Vec<&str>, res: Vec<&str>) {
let print = true;
let mut composer: TopLevelComposer = Default::default();
let internal_resolver = make_internal_resolver_with_tvar(
vec![
("T".into(), vec![]),
(
"V".into(),
vec![
composer.primitives_ty.float,
composer.primitives_ty.int32,
composer.primitives_ty.int64,
],
),
("G".into(), vec![composer.primitives_ty.bool, composer.primitives_ty.int64]),
],
&mut composer.unifier,
print,
);
let resolver = Arc::new(
Box::new(Resolver(internal_resolver.clone())) as Box<dyn SymbolResolver + Send + Sync>
);
for s in source {
let ast = parse_program(s).unwrap();
let ast = ast[0].clone();
let (id, def_id, ty) = {
match composer.register_top_level(ast, Some(resolver.clone()), "".into()) {
Ok(x) => x,
Err(msg) => {
if print {
println!("{}", msg);
} else {
assert_eq!(res[0], msg);
}
return;
}
}
};
internal_resolver.add_id_def(id.clone(), def_id);
if let Some(ty) = ty {
internal_resolver.add_id_type(id, ty);
}
}
if let Err(msg) = composer.start_analysis(true) {
if print {
println!("{}", msg);
} else {
assert_eq!(res[0], msg);
}
} else {
// skip 5 to skip primitives
let mut stringify_folder = TypeToStringFolder { unifier: &mut composer.unifier };
for (_i, (def, _)) in
composer.definition_ast_list.iter().skip(composer.built_in_num).enumerate()
{
let def = &*def.read();
if let TopLevelDef::Function { instance_to_stmt, name, .. } = def {
println!(
"=========`{}`: number of instances: {}===========",
name,
instance_to_stmt.len()
);
for inst in instance_to_stmt.iter() {
let ast = &inst.1.body;
for b in ast {
println!("{:?}", stringify_folder.fold_stmt(b.clone()).unwrap());
println!("--------------------");
}
println!("\n");
}
}
}
}
}
fn make_internal_resolver_with_tvar(
tvars: Vec<(String, Vec<Type>)>,
unifier: &mut Unifier,
print: bool,
) -> Arc<ResolverInternal> {
let res: Arc<ResolverInternal> = ResolverInternal {
id_to_def: Default::default(),
id_to_type: tvars
.into_iter()
.map(|(name, range)| {
(name.clone(), {
let (ty, id) = unifier.get_fresh_var_with_range(range.as_slice());
if print {
println!("{}: {:?}, tvar{}", name, ty, id);
}
ty
})
})
.collect::<HashMap<_, _>>()
.into(),
class_names: Default::default(),
}
.into();
if print {
println!();
}
res
}
struct TypeToStringFolder<'a> {
unifier: &'a mut Unifier,
}
impl<'a> Fold<Option<Type>> for TypeToStringFolder<'a> {
type TargetU = String;
type Error = String;
fn map_user(&mut self, user: Option<Type>) -> Result<Self::TargetU, Self::Error> {
Ok(if let Some(ty) = user {
self.unifier.stringify(ty, &mut |id| format!("class{}", id.to_string()), &mut |id| {
format!("tvar{}", id.to_string())
})
} else {
"None".into()
})
}
}