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core/type_annotation: Refactor List type to TObj 

In preparation for operators on lists.
This commit is contained in:
David Mak 2024-07-02 11:05:05 +08:00
parent 94a1d547d6
commit 2194dbddd5
21 changed files with 496 additions and 188 deletions
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17
nac3artiq/src/codegen.rs
View File

@ -6,8 +6,8 @@ use nac3core::{
CodeGenContext, CodeGenerator,
},
symbol_resolver::ValueEnum,
toplevel::{helper::PrimDef, DefinitionId, GenCall},
typecheck::typedef::{FunSignature, FuncArg, Type, TypeEnum, VarMap},
toplevel::{helper::PrimDef, numpy::unpack_ndarray_var_tys, DefinitionId, GenCall},
typecheck::typedef::{iter_type_vars, FunSignature, FuncArg, Type, TypeEnum, VarMap},
};
use nac3parser::ast::{Expr, ExprKind, Located, Stmt, StmtKind, StrRef};
@ -23,7 +23,6 @@ use pyo3::{
use crate::{symbol_resolver::InnerResolver, timeline::TimeFns};
use nac3core::toplevel::numpy::unpack_ndarray_var_tys;
use std::{
collections::hash_map::DefaultHasher,
collections::HashMap,
@ -394,9 +393,11 @@ fn gen_rpc_tag(
gen_rpc_tag(ctx, *ty, buffer)?;
}
}
TList { ty } => {
TObj { obj_id, params, .. } if *obj_id == PrimDef::List.id() => {
let ty = iter_type_vars(params).next().unwrap().ty;
buffer.push(b'l');
gen_rpc_tag(ctx, *ty, buffer)?;
gen_rpc_tag(ctx, ty, buffer)?;
}
TObj { obj_id, .. } if *obj_id == PrimDef::NDArray.id() => {
let (ndarray_dtype, ndarray_ndims) = unpack_ndarray_var_tys(&mut ctx.unifier, ty);
@ -675,8 +676,10 @@ pub fn attributes_writeback(
host_attributes.append(pydict)?;
}
}
TypeEnum::TList { ty: elem_ty } => {
if gen_rpc_tag(ctx, *elem_ty, &mut scratch_buffer).is_ok() {
TypeEnum::TObj { obj_id, params, .. } if *obj_id == PrimDef::List.id() => {
let elem_ty = iter_type_vars(params).next().unwrap().ty;
if gen_rpc_tag(ctx, elem_ty, &mut scratch_buffer).is_ok() {
let pydict = PyDict::new(py);
pydict.set_item("obj", val)?;
host_attributes.append(pydict)?;

68
nac3artiq/src/symbol_resolver.rs
View File

@ -329,8 +329,19 @@ impl InnerResolver {
Ok(Ok((primitives.exception, true)))
} else if ty_id == self.primitive_ids.list {
// do not handle type var param and concrete check here
let list_tvar = if let TypeEnum::TObj { obj_id, params, .. } =
&*unifier.get_ty_immutable(primitives.list)
{
assert_eq!(*obj_id, PrimDef::List.id());
iter_type_vars(params).nth(0).unwrap()
} else {
unreachable!()
};
let var = unifier.get_dummy_var().ty;
let list = unifier.add_ty(TypeEnum::TList { ty: var });
let list = unifier
.subst(primitives.list, &into_var_map([TypeVar { id: list_tvar.id, ty: var }]))
.unwrap();
Ok(Ok((list, false)))
} else if ty_id == self.primitive_ids.ndarray {
// do not handle type var param and concrete check here
@ -460,7 +471,7 @@ impl InnerResolver {
};
match &*unifier.get_ty(origin_ty) {
TypeEnum::TList { .. } => {
TypeEnum::TObj { obj_id, .. } if *obj_id == PrimDef::List.id() => {
if args.len() == 1 {
let ty = match self.get_pyty_obj_type(
py,
@ -477,7 +488,21 @@ impl InnerResolver {
"type list should take concrete parameters in typevar range".into(),
));
}
Ok(Ok((unifier.add_ty(TypeEnum::TList { ty: ty.0 }), true)))
let list_tvar = if let TypeEnum::TObj { obj_id, params, .. } =
&*unifier.get_ty_immutable(primitives.list)
{
assert_eq!(*obj_id, PrimDef::List.id());
iter_type_vars(params).nth(0).unwrap()
} else {
unreachable!()
};
let list = unifier
.subst(
primitives.list,
&into_var_map([TypeVar { id: list_tvar.id, ty: ty.0 }]),
)
.unwrap();
Ok(Ok((list, true)))
} else {
return Ok(Err(format!(
"type list needs exactly 1 type parameters, found {}",
@ -693,11 +718,12 @@ impl InnerResolver {
};
match (&*unifier.get_ty(extracted_ty), inst_check) {
// do the instantiation for these four types
(TypeEnum::TList { ty }, false) => {
(TypeEnum::TObj { obj_id, params, .. }, false) if *obj_id == PrimDef::List.id() => {
let ty = iter_type_vars(params).nth(0).unwrap().ty;
let len: usize = self.helper.len_fn.call1(py, (obj,))?.extract(py)?;
if len == 0 {
assert!(matches!(
&*unifier.get_ty(*ty),
&*unifier.get_ty(ty),
TypeEnum::TVar { fields: None, range, .. }
if range.is_empty()
));
@ -706,8 +732,25 @@ impl InnerResolver {
let actual_ty =
self.get_list_elem_type(py, obj, len, unifier, defs, primitives)?;
match actual_ty {
Ok(t) => match unifier.unify(*ty, t) {
Ok(()) => Ok(Ok(unifier.add_ty(TypeEnum::TList { ty: *ty }))),
Ok(t) => match unifier.unify(ty, t) {
Ok(()) => {
let list_tvar = if let TypeEnum::TObj { obj_id, params, .. } =
&*unifier.get_ty_immutable(primitives.list)
{
assert_eq!(*obj_id, PrimDef::List.id());
iter_type_vars(params).nth(0).unwrap()
} else {
unreachable!()
};
let list = unifier
.subst(
primitives.list,
&into_var_map([TypeVar { id: list_tvar.id, ty }]),
)
.unwrap();
Ok(Ok(list))
}
Err(e) => Ok(Err(format!(
"type error ({}) for the list",
e.to_display(unifier)
@ -942,12 +985,11 @@ impl InnerResolver {
}
let len: usize = self.helper.len_fn.call1(py, (obj,))?.extract(py)?;
let elem_ty = if let TypeEnum::TList { ty } =
ctx.unifier.get_ty_immutable(expected_ty).as_ref()
{
*ty
} else {
unreachable!("must be list")
let elem_ty = match ctx.unifier.get_ty_immutable(expected_ty).as_ref() {
TypeEnum::TObj { obj_id, params, .. } if *obj_id == PrimDef::List.id() => {
iter_type_vars(params).nth(0).unwrap().ty
}
_ => unreachable!("must be list"),
};
let ty = ctx.get_llvm_type(generator, elem_ty);
let size_t = generator.get_size_type(ctx.ctx);

9
nac3core/src/codegen/concrete_type.rs
View File

@ -47,9 +47,6 @@ pub enum ConcreteTypeEnum {
TTuple {
ty: Vec<ConcreteType>,
},
TList {
ty: ConcreteType,
},
TObj {
obj_id: DefinitionId,
fields: HashMap<StrRef, (ConcreteType, bool)>,
@ -167,9 +164,6 @@ impl ConcreteTypeStore {
.map(|t| self.from_unifier_type(unifier, primitives, *t, cache))
.collect(),
},
TypeEnum::TList { ty } => ConcreteTypeEnum::TList {
ty: self.from_unifier_type(unifier, primitives, *ty, cache),
},
TypeEnum::TObj { obj_id, fields, params } => ConcreteTypeEnum::TObj {
obj_id: *obj_id,
fields: fields
@ -260,9 +254,6 @@ impl ConcreteTypeStore {
.map(|cty| self.to_unifier_type(unifier, primitives, *cty, cache))
.collect(),
},
ConcreteTypeEnum::TList { ty } => {
TypeEnum::TList { ty: self.to_unifier_type(unifier, primitives, *ty, cache) }
}
ConcreteTypeEnum::TVirtual { ty } => {
TypeEnum::TVirtual { ty: self.to_unifier_type(unifier, primitives, *ty, cache) }
}

16
nac3core/src/codegen/expr.rs
View File

@ -2124,11 +2124,19 @@ pub fn gen_expr<'ctx, G: CodeGenerator>(
}
let ty = if elements.is_empty() {
let TypeEnum::TList { ty } = &*ctx.unifier.get_ty(expr.custom.unwrap()) else {
let ty = if let TypeEnum::TObj { obj_id, params, .. } =
&*ctx.unifier.get_ty(expr.custom.unwrap())
{
if *obj_id != PrimDef::List.id() {
unreachable!()
}
*params.iter().next().unwrap().1
} else {
unreachable!()
};
ctx.get_llvm_type(generator, *ty)
ctx.get_llvm_type(generator, ty)
} else {
elements[0].get_type()
};
@ -2550,7 +2558,9 @@ pub fn gen_expr<'ctx, G: CodeGenerator>(
}
ExprKind::Subscript { value, slice, .. } => {
match &*ctx.unifier.get_ty(value.custom.unwrap()) {
TypeEnum::TList { ty } => {
TypeEnum::TObj { obj_id, params, .. } if *obj_id == PrimDef::List.id() => {
let ty = params.iter().next().unwrap().1;
let v = if let Some(v) = generator.gen_expr(ctx, value)? {
v.to_basic_value_enum(ctx, generator, value.custom.unwrap())?
.into_pointer_value()

20
nac3core/src/codegen/mod.rs
View File

@ -456,6 +456,20 @@ fn get_llvm_type<'ctx, G: CodeGenerator + ?Sized>(
.into()
}
TObj { obj_id, params, .. } if *obj_id == PrimDef::List.id() => {
let element_type = get_llvm_type(
ctx,
module,
generator,
unifier,
top_level,
type_cache,
*params.iter().next().unwrap().1,
);
ListType::new(generator, ctx, element_type).as_base_type().into()
}
TObj { obj_id, .. } if *obj_id == PrimDef::NDArray.id() => {
let (dtype, _) = unpack_ndarray_var_tys(unifier, ty);
let element_type = get_llvm_type(
@ -516,12 +530,6 @@ fn get_llvm_type<'ctx, G: CodeGenerator + ?Sized>(
.collect_vec();
ctx.struct_type(&fields, false).into()
}
TList { ty } => {
let element_type =
get_llvm_type(ctx, module, generator, unifier, top_level, type_cache, *ty);
ListType::new(generator, ctx, element_type).as_base_type().into()
}
TVirtual { .. } => unimplemented!(),
_ => unreachable!("{}", ty_enum.get_type_name()),
};

13
nac3core/src/codegen/numpy.rs
View File

@ -1804,10 +1804,15 @@ pub fn gen_ndarray_array<'ctx>(
unpack_ndarray_var_tys(&mut context.unifier, obj_ty).0
}
TypeEnum::TList { ty } => {
let mut ty = *ty;
while let TypeEnum::TList { ty: elem_ty } = &*context.unifier.get_ty_immutable(ty) {
ty = *elem_ty;
TypeEnum::TObj { obj_id, params, .. } if *obj_id == PrimDef::List.id() => {
let mut ty = *params.iter().next().unwrap().1;
while let TypeEnum::TObj { obj_id, params, .. } = &*context.unifier.get_ty_immutable(ty)
{
if *obj_id != PrimDef::List.id() {
break;
}
ty = *params.iter().next().unwrap().1;
}
ty
}

6
nac3core/src/codegen/stmt.rs
View File

@ -136,7 +136,7 @@ pub fn gen_store_target<'ctx, G: CodeGenerator>(
}
ExprKind::Subscript { value, slice, .. } => {
match ctx.unifier.get_ty_immutable(value.custom.unwrap()).as_ref() {
TypeEnum::TList { .. } => {
TypeEnum::TObj { obj_id, .. } if *obj_id == PrimDef::List.id() => {
let v = generator
.gen_expr(ctx, value)?
.unwrap()
@ -243,7 +243,9 @@ pub fn gen_assign<'ctx, G: CodeGenerator>(
.into_pointer_value();
let value = ListValue::from_ptr_val(value, llvm_usize, None);
let ty = match &*ctx.unifier.get_ty_immutable(target.custom.unwrap()) {
TypeEnum::TList { ty } => *ty,
TypeEnum::TObj { obj_id, params, .. } if *obj_id == PrimDef::List.id() => {
*params.iter().next().unwrap().1
}
TypeEnum::TObj { obj_id, .. } if *obj_id == PrimDef::NDArray.id() => {
unpack_ndarray_var_tys(&mut ctx.unifier, target.custom.unwrap()).0
}

19
nac3core/src/symbol_resolver.rs
View File

@ -382,13 +382,12 @@ pub trait SymbolResolver {
}
thread_local! {
static IDENTIFIER_ID: [StrRef; 12] = [
static IDENTIFIER_ID: [StrRef; 11] = [
"int32".into(),
"int64".into(),
"float".into(),
"bool".into(),
"virtual".into(),
"list".into(),
"tuple".into(),
"str".into(),
"Exception".into(),
@ -413,13 +412,12 @@ pub fn parse_type_annotation<T>(
let float_id = ids[2];
let bool_id = ids[3];
let virtual_id = ids[4];
let list_id = ids[5];
let tuple_id = ids[6];
let str_id = ids[7];
let exn_id = ids[8];
let uint32_id = ids[9];
let uint64_id = ids[10];
let literal_id = ids[11];
let tuple_id = ids[5];
let str_id = ids[6];
let exn_id = ids[7];
let uint32_id = ids[8];
let uint64_id = ids[9];
let literal_id = ids[10];
let name_handling = |id: &StrRef, loc: Location, unifier: &mut Unifier| {
if *id == int32_id {
@ -476,9 +474,6 @@ pub fn parse_type_annotation<T>(
if *id == virtual_id {
let ty = parse_type_annotation(resolver, top_level_defs, unifier, primitives, slice)?;
Ok(unifier.add_ty(TypeEnum::TVirtual { ty }))
} else if *id == list_id {
let ty = parse_type_annotation(resolver, top_level_defs, unifier, primitives, slice)?;
Ok(unifier.add_ty(TypeEnum::TList { ty }))
} else if *id == tuple_id {
if let Tuple { elts, .. } = &slice.node {
let ty = elts

49
nac3core/src/toplevel/builtins.rs
View File

@ -305,6 +305,8 @@ struct BuiltinBuilder<'a> {
unwrap_ty: (Type, bool),
option_tvar: TypeVar,
list_tvar: TypeVar,
ndarray_dtype_tvar: TypeVar,
ndarray_ndims_tvar: TypeVar,
ndarray_copy_ty: (Type, bool),
@ -395,7 +397,17 @@ impl<'a> BuiltinBuilder<'a> {
unifier.get_fresh_var_with_range(&[num_ty.ty, ndarray_num_ty], Some("T".into()), None);
let num_or_ndarray_var_map = into_var_map([num_ty, num_or_ndarray_ty]);
let list_int32 = unifier.add_ty(TypeEnum::TList { ty: int32 });
let list_tvar = if let TypeEnum::TObj { obj_id, params, .. } =
&*unifier.get_ty_immutable(primitives.list)
{
assert_eq!(*obj_id, PrimDef::List.id());
iter_type_vars(params).nth(0).unwrap()
} else {
unreachable!()
};
let list_int32 = unifier
.subst(primitives.list, &into_var_map([TypeVar { id: list_tvar.id, ty: int32 }]))
.unwrap();
let ndarray_factory_fn_shape_arg_tvar = unifier.get_fresh_var(Some("Shape".into()), None);
@ -407,6 +419,8 @@ impl<'a> BuiltinBuilder<'a> {
unwrap_ty,
option_tvar,
list_tvar,
ndarray_dtype_tvar,
ndarray_ndims_tvar,
ndarray_copy_ty,
@ -457,6 +471,8 @@ impl<'a> BuiltinBuilder<'a> {
| PrimDef::OptionUnwrap
| PrimDef::FunSome => self.build_option_class_related(prim),
PrimDef::List => self.build_list_class_related(prim),
PrimDef::NDArray | PrimDef::NDArrayCopy | PrimDef::NDArrayFill => {
self.build_ndarray_class_related(prim)
}
@ -735,6 +751,27 @@ impl<'a> BuiltinBuilder<'a> {
}
}
fn build_list_class_related(&self, prim: PrimDef) -> TopLevelDef {
debug_assert_prim_is_allowed(prim, &[PrimDef::List]);
match prim {
PrimDef::List => TopLevelDef::Class {
name: prim.name().into(),
object_id: prim.id(),
type_vars: vec![self.list_tvar.ty],
fields: Vec::default(),
attributes: Vec::default(),
methods: Vec::default(),
ancestors: Vec::default(),
constructor: None,
resolver: None,
loc: None,
},
_ => unreachable!(),
}
}
/// Build the class `ndarray` and its associated methods.
fn build_ndarray_class_related(&self, prim: PrimDef) -> TopLevelDef {
debug_assert_prim_is_allowed(
@ -1335,7 +1372,13 @@ impl<'a> BuiltinBuilder<'a> {
let PrimitiveStore { uint64, int32, .. } = *self.primitives;
let tvar = self.unifier.get_fresh_var(Some("L".into()), None);
let list = self.unifier.add_ty(TypeEnum::TList { ty: tvar.ty });
let list = self
.unifier
.subst(
self.primitives.list,
&into_var_map([TypeVar { id: self.list_tvar.id, ty: tvar.ty }]),
)
.unwrap();
let ndims = self.unifier.get_fresh_const_generic_var(uint64, Some("N".into()), None);
let ndarray = make_ndarray_ty(self.unifier, self.primitives, Some(tvar.ty), Some(ndims.ty));
@ -1367,7 +1410,7 @@ impl<'a> BuiltinBuilder<'a> {
Some(calculate_len_for_slice_range(generator, ctx, start, end, step).into())
} else {
match &*ctx.unifier.get_ty_immutable(arg_ty) {
TypeEnum::TList { .. } => {
TypeEnum::TObj { obj_id, .. } if *obj_id == PrimDef::List.id() => {
let int32 = ctx.ctx.i32_type();
let zero = int32.const_zero();
let len = ctx

27
nac3core/src/toplevel/helper.rs
View File

@ -2,7 +2,7 @@ use std::convert::TryInto;
use crate::symbol_resolver::SymbolValue;
use crate::toplevel::numpy::unpack_ndarray_var_tys;
use crate::typecheck::typedef::{into_var_map, Mapping, TypeVarId, VarMap};
use crate::typecheck::typedef::{into_var_map, iter_type_vars, Mapping, TypeVarId, VarMap};
use nac3parser::ast::{Constant, Location};
use strum::IntoEnumIterator;
use strum_macros::EnumIter;
@ -12,6 +12,7 @@ use super::*;
/// All primitive types and functions in nac3core.
#[derive(Clone, Copy, Debug, EnumIter, PartialEq, Eq)]
pub enum PrimDef {
// Classes
Int32,
Int64,
Float,
@ -23,10 +24,13 @@ pub enum PrimDef {
UInt32,
UInt64,
Option,
List,
NDArray,
// Member Functions
OptionIsSome,
OptionIsNone,
OptionUnwrap,
NDArray,
NDArrayCopy,
NDArrayFill,
FunInt32,
@ -99,6 +103,8 @@ pub enum PrimDef {
FunNpLdExp,
FunNpHypot,
FunNpNextAfter,
// Top-Level Functions
FunSome,
}
@ -177,6 +183,7 @@ impl PrimDef {
PrimDef::OptionIsSome => fun("Option.is_some", Some("is_some")),
PrimDef::OptionIsNone => fun("Option.is_none", Some("is_none")),
PrimDef::OptionUnwrap => fun("Option.unwrap", Some("unwrap")),
PrimDef::List => class("list"),
PrimDef::NDArray => class("ndarray"),
PrimDef::NDArrayCopy => fun("ndarray.copy", Some("copy")),
PrimDef::NDArrayFill => fun("ndarray.fill", Some("fill")),
@ -410,6 +417,13 @@ impl TopLevelComposer {
_ => unreachable!(),
};
let list_elem_tvar = unifier.get_fresh_var(Some("list_elem".into()), None);
let list = unifier.add_ty(TypeEnum::TObj {
obj_id: PrimDef::List.id(),
fields: Mapping::new(),
params: into_var_map([list_elem_tvar]),
});
let ndarray_dtype_tvar = unifier.get_fresh_var(Some("ndarray_dtype".into()), None);
let ndarray_ndims_tvar =
unifier.get_fresh_const_generic_var(size_t_ty, Some("ndarray_ndims".into()), None);
@ -451,6 +465,7 @@ impl TopLevelComposer {
str,
exception,
option,
list,
ndarray,
size_t,
};
@ -888,7 +903,9 @@ pub fn arraylike_flatten_element_type(unifier: &mut Unifier, ty: Type) -> Type {
unpack_ndarray_var_tys(unifier, ty).0
}
TypeEnum::TList { ty } => arraylike_flatten_element_type(unifier, *ty),
TypeEnum::TObj { obj_id, params, .. } if *obj_id == PrimDef::List.id() => {
arraylike_flatten_element_type(unifier, iter_type_vars(params).next().unwrap().ty)
}
_ => ty,
}
}
@ -909,7 +926,9 @@ pub fn arraylike_get_ndims(unifier: &mut Unifier, ty: Type) -> u64 {
u64::try_from(values[0].clone()).unwrap()
}
TypeEnum::TList { ty } => arraylike_get_ndims(unifier, *ty) + 1,
TypeEnum::TObj { obj_id, params, .. } if *obj_id == PrimDef::List.id() => {
arraylike_get_ndims(unifier, iter_type_vars(params).next().unwrap().ty) + 1
}
_ => 0,
}
}

2
nac3core/src/toplevel/snapshots/nac3core__toplevel__test__test_analyze__generic_class.snap
View File

@ -5,7 +5,7 @@ expression: res_vec
[
"Class {\nname: \"Generic_A\",\nancestors: [\"Generic_A[V]\", \"B\"],\nfields: [\"aa\", \"a\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"foo\", \"fn[[b:T], none]\"), (\"fun\", \"fn[[a:int32], V]\")],\ntype_vars: [\"V\"]\n}\n",
"Function {\nname: \"Generic_A.__init__\",\nsig: \"fn[[], none]\",\nvar_id: []\n}\n",
"Function {\nname: \"Generic_A.fun\",\nsig: \"fn[[a:int32], V]\",\nvar_id: [TypeVarId(240)]\n}\n",
"Function {\nname: \"Generic_A.fun\",\nsig: \"fn[[a:int32], V]\",\nvar_id: [TypeVarId(242)]\n}\n",
"Class {\nname: \"B\",\nancestors: [\"B\"],\nfields: [\"aa\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"foo\", \"fn[[b:T], none]\")],\ntype_vars: []\n}\n",
"Function {\nname: \"B.__init__\",\nsig: \"fn[[], none]\",\nvar_id: []\n}\n",
"Function {\nname: \"B.foo\",\nsig: \"fn[[b:T], none]\",\nvar_id: []\n}\n",

2
nac3core/src/toplevel/snapshots/nac3core__toplevel__test__test_analyze__inheritance_override.snap
View File

@ -7,7 +7,7 @@ expression: res_vec
"Function {\nname: \"A.__init__\",\nsig: \"fn[[t:T], none]\",\nvar_id: []\n}\n",
"Function {\nname: \"A.fun\",\nsig: \"fn[[a:int32, b:T], list[virtual[B[bool]]]]\",\nvar_id: []\n}\n",
"Function {\nname: \"A.foo\",\nsig: \"fn[[c:C], none]\",\nvar_id: []\n}\n",
"Class {\nname: \"B\",\nancestors: [\"B[typevar229]\", \"A[float]\"],\nfields: [\"a\", \"b\", \"c\", \"d\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"fun\", \"fn[[a:int32, b:T], list[virtual[B[bool]]]]\"), (\"foo\", \"fn[[c:C], none]\")],\ntype_vars: [\"typevar229\"]\n}\n",
"Class {\nname: \"B\",\nancestors: [\"B[typevar231]\", \"A[float]\"],\nfields: [\"a\", \"b\", \"c\", \"d\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"fun\", \"fn[[a:int32, b:T], list[virtual[B[bool]]]]\"), (\"foo\", \"fn[[c:C], none]\")],\ntype_vars: [\"typevar231\"]\n}\n",
"Function {\nname: \"B.__init__\",\nsig: \"fn[[], none]\",\nvar_id: []\n}\n",
"Function {\nname: \"B.fun\",\nsig: \"fn[[a:int32, b:T], list[virtual[B[bool]]]]\",\nvar_id: []\n}\n",
"Class {\nname: \"C\",\nancestors: [\"C\", \"B[bool]\", \"A[float]\"],\nfields: [\"a\", \"b\", \"c\", \"d\", \"e\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"fun\", \"fn[[a:int32, b:T], list[virtual[B[bool]]]]\"), (\"foo\", \"fn[[c:C], none]\")],\ntype_vars: []\n}\n",

4
nac3core/src/toplevel/snapshots/nac3core__toplevel__test__test_analyze__list_tuple_generic.snap
View File

@ -5,8 +5,8 @@ expression: res_vec
[
"Function {\nname: \"foo\",\nsig: \"fn[[a:list[int32], b:tuple[T, float]], A[B, bool]]\",\nvar_id: []\n}\n",
"Class {\nname: \"A\",\nancestors: [\"A[T, V]\"],\nfields: [\"a\", \"b\"],\nmethods: [(\"__init__\", \"fn[[v:V], none]\"), (\"fun\", \"fn[[a:T], V]\")],\ntype_vars: [\"T\", \"V\"]\n}\n",
"Function {\nname: \"A.__init__\",\nsig: \"fn[[v:V], none]\",\nvar_id: [TypeVarId(242)]\n}\n",
"Function {\nname: \"A.fun\",\nsig: \"fn[[a:T], V]\",\nvar_id: [TypeVarId(247)]\n}\n",
"Function {\nname: \"A.__init__\",\nsig: \"fn[[v:V], none]\",\nvar_id: [TypeVarId(244)]\n}\n",
"Function {\nname: \"A.fun\",\nsig: \"fn[[a:T], V]\",\nvar_id: [TypeVarId(249)]\n}\n",
"Function {\nname: \"gfun\",\nsig: \"fn[[a:A[list[float], int32]], none]\",\nvar_id: []\n}\n",
"Class {\nname: \"B\",\nancestors: [\"B\"],\nfields: [],\nmethods: [(\"__init__\", \"fn[[], none]\")],\ntype_vars: []\n}\n",
"Function {\nname: \"B.__init__\",\nsig: \"fn[[], none]\",\nvar_id: []\n}\n",

2
nac3core/src/toplevel/snapshots/nac3core__toplevel__test__test_analyze__self1.snap
View File

@ -3,7 +3,7 @@ source: nac3core/src/toplevel/test.rs
expression: res_vec
---
[
"Class {\nname: \"A\",\nancestors: [\"A[typevar228, typevar229]\"],\nfields: [\"a\", \"b\"],\nmethods: [(\"__init__\", \"fn[[a:A[float, bool], b:B], none]\"), (\"fun\", \"fn[[a:A[float, bool]], A[bool, int32]]\")],\ntype_vars: [\"typevar228\", \"typevar229\"]\n}\n",
"Class {\nname: \"A\",\nancestors: [\"A[typevar230, typevar231]\"],\nfields: [\"a\", \"b\"],\nmethods: [(\"__init__\", \"fn[[a:A[float, bool], b:B], none]\"), (\"fun\", \"fn[[a:A[float, bool]], A[bool, int32]]\")],\ntype_vars: [\"typevar230\", \"typevar231\"]\n}\n",
"Function {\nname: \"A.__init__\",\nsig: \"fn[[a:A[float, bool], b:B], none]\",\nvar_id: []\n}\n",
"Function {\nname: \"A.fun\",\nsig: \"fn[[a:A[float, bool]], A[bool, int32]]\",\nvar_id: []\n}\n",
"Class {\nname: \"B\",\nancestors: [\"B\", \"A[int64, bool]\"],\nfields: [\"a\", \"b\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"fun\", \"fn[[a:A[float, bool]], A[bool, int32]]\"), (\"foo\", \"fn[[b:B], B]\"), (\"bar\", \"fn[[a:A[list[B], int32]], tuple[A[virtual[A[B, int32]], bool], B]]\")],\ntype_vars: []\n}\n",

4
nac3core/src/toplevel/snapshots/nac3core__toplevel__test__test_analyze__simple_class_compose.snap
View File

@ -6,12 +6,12 @@ expression: res_vec
"Class {\nname: \"A\",\nancestors: [\"A\"],\nfields: [\"a\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"fun\", \"fn[[b:B], none]\"), (\"foo\", \"fn[[a:T, b:V], none]\")],\ntype_vars: []\n}\n",
"Function {\nname: \"A.__init__\",\nsig: \"fn[[], none]\",\nvar_id: []\n}\n",
"Function {\nname: \"A.fun\",\nsig: \"fn[[b:B], none]\",\nvar_id: []\n}\n",
"Function {\nname: \"A.foo\",\nsig: \"fn[[a:T, b:V], none]\",\nvar_id: [TypeVarId(248)]\n}\n",
"Function {\nname: \"A.foo\",\nsig: \"fn[[a:T, b:V], none]\",\nvar_id: [TypeVarId(250)]\n}\n",
"Class {\nname: \"B\",\nancestors: [\"B\", \"C\", \"A\"],\nfields: [\"a\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"fun\", \"fn[[b:B], none]\"), (\"foo\", \"fn[[a:T, b:V], none]\")],\ntype_vars: []\n}\n",
"Function {\nname: \"B.__init__\",\nsig: \"fn[[], none]\",\nvar_id: []\n}\n",
"Class {\nname: \"C\",\nancestors: [\"C\", \"A\"],\nfields: [\"a\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"fun\", \"fn[[b:B], none]\"), (\"foo\", \"fn[[a:T, b:V], none]\")],\ntype_vars: []\n}\n",
"Function {\nname: \"C.__init__\",\nsig: \"fn[[], none]\",\nvar_id: []\n}\n",
"Function {\nname: \"C.fun\",\nsig: \"fn[[b:B], none]\",\nvar_id: []\n}\n",
"Function {\nname: \"foo\",\nsig: \"fn[[a:A], none]\",\nvar_id: []\n}\n",
"Function {\nname: \"ff\",\nsig: \"fn[[a:T], V]\",\nvar_id: [TypeVarId(256)]\n}\n",
"Function {\nname: \"ff\",\nsig: \"fn[[a:T], V]\",\nvar_id: [TypeVarId(258)]\n}\n",
]

16
nac3core/src/toplevel/test.rs
View File

@ -1,3 +1,6 @@
use super::*;
use crate::toplevel::helper::PrimDef;
use crate::typecheck::typedef::into_var_map;
use crate::{
codegen::CodeGenContext,
symbol_resolver::{SymbolResolver, ValueEnum},
@ -14,8 +17,6 @@ use parking_lot::Mutex;
use std::{collections::HashMap, sync::Arc};
use test_case::test_case;
use super::*;
struct ResolverInternal {
id_to_type: Mutex<HashMap<StrRef, Type>>,
id_to_def: Mutex<HashMap<StrRef, DefinitionId>>,
@ -775,8 +776,15 @@ fn make_internal_resolver_with_tvar(
unifier: &mut Unifier,
print: bool,
) -> Arc<ResolverInternal> {
let list_elem_tvar = unifier.get_fresh_var(Some("list_elem".into()), None);
let list = unifier.add_ty(TypeEnum::TObj {
obj_id: PrimDef::List.id(),
fields: HashMap::new(),
params: into_var_map([list_elem_tvar]),
});
let res: Arc<ResolverInternal> = ResolverInternal {
id_to_def: Mutex::default(),
id_to_def: Mutex::new(HashMap::from([("list".into(), PrimDef::List.id())])),
id_to_type: tvars
.into_iter()
.map(|(name, range)| {
@ -790,7 +798,7 @@ fn make_internal_resolver_with_tvar(
})
.collect::<HashMap<_, _>>()
.into(),
class_names: Mutex::default(),
class_names: Mutex::new(HashMap::from([("list".into(), list)])),
}
.into();
if print {

37
nac3core/src/toplevel/type_annotation.rs
View File

@ -18,7 +18,6 @@ pub enum TypeAnnotation {
TypeVar(Type),
/// A `Literal` allowing a subset of literals.
Literal(Vec<Constant>),
List(Box<TypeAnnotation>),
Tuple(Vec<TypeAnnotation>),
}
@ -51,7 +50,6 @@ impl TypeAnnotation {
format!("Literal({})", values.iter().map(|v| format!("{v:?}")).join(", "))
}
Virtual(ty) => format!("virtual[{}]", ty.stringify(unifier)),
List(ty) => format!("list[{}]", ty.stringify(unifier)),
Tuple(types) => {
format!(
"tuple[{}]",
@ -145,9 +143,7 @@ pub fn parse_ast_to_type_annotation_kinds<T, S: std::hash::BuildHasher + Clone>(
slice: &ast::Expr<T>,
unifier: &mut Unifier,
mut locked: HashMap<DefinitionId, Vec<Type>, S>| {
if ["virtual".into(), "Generic".into(), "list".into(), "tuple".into(), "Option".into()]
.contains(id)
{
if ["virtual".into(), "Generic".into(), "tuple".into(), "Option".into()].contains(id) {
return Err(HashSet::from([format!(
"keywords cannot be class name (at {})",
expr.location
@ -236,23 +232,6 @@ pub fn parse_ast_to_type_annotation_kinds<T, S: std::hash::BuildHasher + Clone>(
Ok(TypeAnnotation::Virtual(def.into()))
}
// list
ast::ExprKind::Subscript { value, slice, .. }
if {
matches!(&value.node, ast::ExprKind::Name { id, .. } if id == &"list".into())
} =>
{
let def_ann = parse_ast_to_type_annotation_kinds(
resolver,
top_level_defs,
unifier,
primitives,
slice.as_ref(),
locked,
)?;
Ok(TypeAnnotation::List(def_ann.into()))
}
// option
ast::ExprKind::Subscript { value, slice, .. }
if {
@ -516,15 +495,6 @@ pub fn get_type_from_type_annotation_kinds(
)?;
Ok(unifier.add_ty(TypeEnum::TVirtual { ty }))
}
TypeAnnotation::List(ty) => {
let ty = get_type_from_type_annotation_kinds(
top_level_defs,
unifier,
ty.as_ref(),
subst_list,
)?;
Ok(unifier.add_ty(TypeEnum::TList { ty }))
}
TypeAnnotation::Tuple(tys) => {
let tys = tys
.iter()
@ -565,7 +535,7 @@ pub fn get_type_var_contained_in_type_annotation(ann: &TypeAnnotation) -> Vec<Ty
let mut result: Vec<TypeAnnotation> = Vec::new();
match ann {
TypeAnnotation::TypeVar(..) => result.push(ann.clone()),
TypeAnnotation::Virtual(ann) | TypeAnnotation::List(ann) => {
TypeAnnotation::Virtual(ann) => {
result.extend(get_type_var_contained_in_type_annotation(ann.as_ref()));
}
TypeAnnotation::CustomClass { params, .. } => {
@ -606,8 +576,7 @@ pub fn check_overload_type_annotation_compatible(
a == b
}
(TypeAnnotation::Virtual(a), TypeAnnotation::Virtual(b))
| (TypeAnnotation::List(a), TypeAnnotation::List(b)) => {
(TypeAnnotation::Virtual(a), TypeAnnotation::Virtual(b)) => {
check_overload_type_annotation_compatible(a.as_ref(), b.as_ref(), unifier)
}

96
nac3core/src/typecheck/type_inferencer/mod.rs
View File

@ -4,15 +4,20 @@ use std::iter::once;
use std::ops::Not;
use std::{cell::RefCell, sync::Arc};
use super::typedef::{Call, FunSignature, FuncArg, RecordField, Type, TypeEnum, Unifier, VarMap};
use super::{magic_methods::*, type_error::TypeError, typedef::CallId};
use crate::toplevel::TopLevelDef;
use super::{
magic_methods::*,
type_error::TypeError,
typedef::{
into_var_map, iter_type_vars, Call, CallId, FunSignature, FuncArg, RecordField, Type,
TypeEnum, TypeVar, Unifier, VarMap,
},
};
use crate::{
symbol_resolver::{SymbolResolver, SymbolValue},
toplevel::{
helper::{arraylike_flatten_element_type, arraylike_get_ndims, PrimDef},
numpy::{make_ndarray_ty, unpack_ndarray_var_tys},
TopLevelContext,
TopLevelContext, TopLevelDef,
},
};
use itertools::{izip, Itertools};
@ -50,6 +55,7 @@ pub struct PrimitiveStore {
pub str: Type,
pub exception: Type,
pub option: Type,
pub list: Type,
pub ndarray: Type,
pub size_t: u32,
}
@ -242,8 +248,17 @@ impl<'a> Fold<()> for Inferencer<'a> {
self.unify(self.primitives.int32, target.custom.unwrap(), &target.location)?;
} else {
let list_like_ty = match &*self.unifier.get_ty(iter.custom.unwrap()) {
TypeEnum::TList { .. } => {
self.unifier.add_ty(TypeEnum::TList { ty: target.custom.unwrap() })
TypeEnum::TObj { obj_id, params, .. } if *obj_id == PrimDef::List.id() => {
let list_tvar = iter_type_vars(params).nth(0).unwrap();
self.unifier
.subst(
self.primitives.list,
&into_var_map([TypeVar {
id: list_tvar.id,
ty: target.custom.unwrap(),
}]),
)
.unwrap()
}
TypeEnum::TObj { obj_id, .. } if *obj_id == PrimDef::NDArray.id() => {
todo!()
@ -764,6 +779,16 @@ impl<'a> Inferencer<'a> {
generators[0].target.location,
);
}
let list_tvar = if let TypeEnum::TObj { obj_id, params, .. } =
&*self.unifier.get_ty_immutable(self.primitives.list)
{
assert_eq!(*obj_id, PrimDef::List.id());
iter_type_vars(params).nth(0).unwrap()
} else {
unreachable!()
};
let variable_mapping = self.variable_mapping.clone();
let defined_identifiers = self.defined_identifiers.clone();
let mut new_context = Inferencer {
@ -792,7 +817,13 @@ impl<'a> Inferencer<'a> {
&target.location,
)?;
} else {
let list = new_context.unifier.add_ty(TypeEnum::TList { ty: target.custom.unwrap() });
let list = new_context
.unifier
.subst(
self.primitives.list,
&into_var_map([TypeVar { id: list_tvar.id, ty: target.custom.unwrap() }]),
)
.unwrap();
new_context.unify(iter.custom.unwrap(), list, &iter.location)?;
}
let ifs: Vec<_> = generator
@ -809,9 +840,16 @@ impl<'a> Inferencer<'a> {
new_context.unify(v.custom.unwrap(), new_context.primitives.bool, &v.location)?;
}
let custom = new_context
.unifier
.subst(
self.primitives.list,
&into_var_map([TypeVar { id: list_tvar.id, ty: elt.custom.unwrap() }]),
)
.unwrap();
Ok(Located {
location,
custom: Some(new_context.unifier.add_ty(TypeEnum::TList { ty: elt.custom.unwrap() })),
custom: Some(custom),
node: ExprKind::ListComp {
elt: Box::new(elt),
generators: vec![Comprehension {
@ -893,11 +931,13 @@ impl<'a> Inferencer<'a> {
// Here, we also take the opportunity to deduce `ndims` statically.
let shape_ty_enum = &*self.unifier.get_ty(shape_ty);
let ndims = match shape_ty_enum {
TypeEnum::TList { ty } => {
TypeEnum::TObj { obj_id, params, .. } if *obj_id == PrimDef::List.id() => {
// Handle 1. A list of int32s
let ty = iter_type_vars(params).nth(0).unwrap().ty;
// Typecheck
self.unifier.unify(*ty, self.primitives.int32).map_err(|err| {
self.unifier.unify(ty, self.primitives.int32).map_err(|err| {
HashSet::from([err
.at(Some(shape.location))
.to_display(self.unifier)
@ -1563,7 +1603,19 @@ impl<'a> Inferencer<'a> {
for t in elts {
self.unify(ty, t.custom.unwrap(), &t.location)?;
}
Ok(self.unifier.add_ty(TypeEnum::TList { ty }))
let list_tvar = if let TypeEnum::TObj { obj_id, params, .. } =
&*self.unifier.get_ty_immutable(self.primitives.list)
{
assert_eq!(*obj_id, PrimDef::List.id());
iter_type_vars(params).nth(0).unwrap()
} else {
unreachable!()
};
let list = self
.unifier
.subst(self.primitives.list, &into_var_map([TypeVar { id: list_tvar.id, ty }]))
.unwrap();
Ok(list)
}
#[allow(clippy::unnecessary_wraps)]
@ -1885,7 +1937,16 @@ impl<'a> Inferencer<'a> {
self.constrain(v.custom.unwrap(), self.primitives.int32, &v.location)?;
}
let list_like_ty = match &*self.unifier.get_ty(value.custom.unwrap()) {
TypeEnum::TList { .. } => self.unifier.add_ty(TypeEnum::TList { ty }),
TypeEnum::TObj { obj_id, params, .. } if *obj_id == PrimDef::List.id() => {
let list_tvar = iter_type_vars(params).nth(0).unwrap();
self.unifier
.subst(
self.primitives.list,
&into_var_map([TypeVar { id: list_tvar.id, ty }]),
)
.unwrap()
}
TypeEnum::TObj { obj_id, .. } if *obj_id == PrimDef::NDArray.id() => {
let (_, ndims) =
unpack_ndarray_var_tys(self.unifier, value.custom.unwrap());
@ -1960,13 +2021,20 @@ impl<'a> Inferencer<'a> {
// the index is not a constant, so value can only be a list-like structure
match &*self.unifier.get_ty(value.custom.unwrap()) {
TypeEnum::TList { .. } => {
TypeEnum::TObj { obj_id, params, .. } if *obj_id == PrimDef::List.id() => {
self.constrain(
slice.custom.unwrap(),
self.primitives.int32,
&slice.location,
)?;
let list = self.unifier.add_ty(TypeEnum::TList { ty });
let list_tvar = iter_type_vars(params).nth(0).unwrap();
let list = self
.unifier
.subst(
self.primitives.list,
&into_var_map([TypeVar { id: list_tvar.id, ty }]),
)
.unwrap();
self.constrain(value.custom.unwrap(), list, &value.location)?;
Ok(ty)
}

41
nac3core/src/typecheck/type_inferencer/test.rs
View File

@ -139,6 +139,12 @@ impl TestEnvironment {
fields: HashMap::new(),
params: VarMap::new(),
});
let list_elem_tvar = unifier.get_fresh_var(Some("list_elem".into()), None);
let list = unifier.add_ty(TypeEnum::TObj {
obj_id: PrimDef::List.id(),
fields: HashMap::new(),
params: into_var_map([list_elem_tvar]),
});
let ndarray_dtype_tvar = unifier.get_fresh_var(Some("ndarray_dtype".into()), None);
let ndarray_ndims_tvar =
unifier.get_fresh_const_generic_var(uint64, Some("ndarray_ndims".into()), None);
@ -159,6 +165,7 @@ impl TestEnvironment {
uint32,
uint64,
option,
list,
ndarray,
size_t: 64,
};
@ -273,15 +280,35 @@ impl TestEnvironment {
fields: HashMap::new(),
params: VarMap::new(),
});
let list_elem_tvar = unifier.get_fresh_var(Some("list_elem".into()), None);
let list = unifier.add_ty(TypeEnum::TObj {
obj_id: PrimDef::List.id(),
fields: HashMap::new(),
params: into_var_map([list_elem_tvar]),
});
let ndarray = unifier.add_ty(TypeEnum::TObj {
obj_id: PrimDef::NDArray.id(),
fields: HashMap::new(),
params: VarMap::new(),
});
identifier_mapping.insert("None".into(), none);
for (i, name) in ["int32", "int64", "float", "bool", "none", "range", "str", "Exception"]
.iter()
.enumerate()
for (i, name) in [
"int32",
"int64",
"float",
"bool",
"none",
"range",
"str",
"Exception",
"uint32",
"uint64",
"Option",
"list",
"ndarray",
]
.iter()
.enumerate()
{
top_level_defs.push(
RwLock::new(TopLevelDef::Class {
@ -299,7 +326,7 @@ impl TestEnvironment {
.into(),
);
}
let defs = 7;
let defs = 12;
let primitives = PrimitiveStore {
int32,
@ -313,6 +340,7 @@ impl TestEnvironment {
uint32,
uint64,
option,
list,
ndarray,
size_t: 64,
};
@ -424,6 +452,11 @@ impl TestEnvironment {
"range".into(),
"str".into(),
"exception".into(),
"uint32".into(),
"uint64".into(),
"option".into(),
"list".into(),
"ndarray".into(),
"Foo".into(),
"Bar".into(),
"Bar2".into(),

77
nac3core/src/typecheck/typedef/mod.rs
View File

@ -13,7 +13,7 @@ use nac3parser::ast::{Location, StrRef};
use super::type_error::{TypeError, TypeErrorKind};
use super::unification_table::{UnificationKey, UnificationTable};
use crate::symbol_resolver::SymbolValue;
use crate::toplevel::{DefinitionId, TopLevelContext, TopLevelDef};
use crate::toplevel::{helper::PrimDef, DefinitionId, TopLevelContext, TopLevelDef};
use crate::typecheck::type_inferencer::PrimitiveStore;
#[cfg(test)]
@ -207,12 +207,6 @@ pub enum TypeEnum {
ty: Vec<Type>,
},
/// A list type.
TList {
/// The type of elements present in this list.
ty: Type,
},
/// An object type.
TObj {
/// The [`DefinitionId`] of this object type.
@ -246,7 +240,6 @@ impl TypeEnum {
TypeEnum::TVar { .. } => "TVar",
TypeEnum::TLiteral { .. } => "TConstant",
TypeEnum::TTuple { .. } => "TTuple",
TypeEnum::TList { .. } => "TList",
TypeEnum::TObj { .. } => "TObj",
TypeEnum::TVirtual { .. } => "TVirtual",
TypeEnum::TCall { .. } => "TCall",
@ -482,9 +475,27 @@ impl Unifier {
)
}
}
TypeEnum::TList { ty } => self
.get_instantiations(*ty)
.map(|ty| ty.iter().map(|&ty| self.add_ty(TypeEnum::TList { ty })).collect_vec()),
TypeEnum::TObj { obj_id, params, .. } if *obj_id == PrimDef::List.id() => {
let tv = iter_type_vars(params).nth(0).unwrap();
let tv_id = if let TypeEnum::TVar { id, .. } =
self.unification_table.probe_value(tv.ty).as_ref()
{
*id
} else {
tv.id
};
self.get_instantiations(tv.ty).map(|ty_insts| {
ty_insts
.iter()
.map(|&ty_inst| {
self.subst(ty, &into_var_map([TypeVar { id: tv_id, ty: ty_inst }]))
.unwrap_or(ty)
})
.collect()
})
}
TypeEnum::TVirtual { ty } => self.get_instantiations(*ty).map(|ty| {
ty.iter().map(|&ty| self.add_ty(TypeEnum::TVirtual { ty })).collect_vec()
}),
@ -541,9 +552,7 @@ impl Unifier {
TVar { .. } => allowed_typevars.iter().any(|b| self.unification_table.unioned(a, *b)),
TCall { .. } => false,
TList { ty }
| TVirtual { ty } => self.is_concrete(*ty, allowed_typevars),
TVirtual { ty } => self.is_concrete(*ty, allowed_typevars),
TTuple { ty } => ty.iter().all(|ty| self.is_concrete(*ty, allowed_typevars)),
TObj { params: vars, .. } => {
vars.values().all(|ty| self.is_concrete(*ty, allowed_typevars))
@ -885,11 +894,16 @@ impl Unifier {
self.unify_impl(x, b, false)?;
self.set_a_to_b(a, x);
}
(TVar { fields: Some(fields), range, is_const_generic: false, .. }, TList { ty }) => {
(
TVar { fields: Some(fields), range, is_const_generic: false, .. },
TObj { obj_id, params, .. },
) if *obj_id == PrimDef::List.id() => {
let ty = iter_type_vars(params).nth(0).unwrap().ty;
for (k, v) in fields {
match *k {
RecordKey::Int(_) => {
self.unify_impl(v.ty, *ty, false).map_err(|e| e.at(v.loc))?;
self.unify_impl(v.ty, ty, false).map_err(|e| e.at(v.loc))?;
}
RecordKey::Str(_) => {
return Err(TypeError::new(TypeErrorKind::NoSuchField(*k, b), v.loc))
@ -979,12 +993,6 @@ impl Unifier {
}
self.set_a_to_b(a, b);
}
(TList { ty: ty1 }, TList { ty: ty2 }) => {
if self.unify_impl(*ty1, *ty2, false).is_err() {
return Err(TypeError::new(TypeErrorKind::IncompatibleTypes(a, b), None));
}
self.set_a_to_b(a, b);
}
(TVar { fields: Some(map), range, .. }, TObj { fields, .. }) => {
for (k, field) in map {
match *k {
@ -1222,9 +1230,6 @@ impl Unifier {
ty.iter().map(|v| self.internal_stringify(*v, obj_to_name, var_to_name, notes));
format!("tuple[{}]", fields.join(", "))
}
TypeEnum::TList { ty } => {
format!("list[{}]", self.internal_stringify(*ty, obj_to_name, var_to_name, notes))
}
TypeEnum::TVirtual { ty } => {
format!(
"virtual[{}]",
@ -1357,9 +1362,6 @@ impl Unifier {
None
}
}
TypeEnum::TList { ty } => {
self.subst_impl(*ty, mapping, cache).map(|t| self.add_ty(TypeEnum::TList { ty: t }))
}
TypeEnum::TVirtual { ty } => self
.subst_impl(*ty, mapping, cache)
.map(|t| self.add_ty(TypeEnum::TVirtual { ty: t })),
@ -1370,6 +1372,7 @@ impl Unifier {
// This is also used to prevent infinite substitution...
let need_subst = params.values().any(|v| {
let ty = self.unification_table.probe_value(*v);
// TODO(Derppening): #444
if let TypeEnum::TVar { id, .. } = ty.as_ref() {
mapping.contains_key(id)
} else {
@ -1526,8 +1529,22 @@ impl Unifier {
Ok(None)
}
}
(TList { ty: ty1 }, TList { ty: ty2 }) => {
Ok(self.get_intersection(*ty1, *ty2)?.map(|ty| self.add_ty(TList { ty })))
// TODO(Derppening): #444
(
TObj { obj_id: id1, fields, params: params1 },
TObj { obj_id: id2, params: params2, .. },
) if *id1 == PrimDef::List.id() && *id2 == PrimDef::List.id() => {
let tv_id = iter_type_vars(params1).nth(0).unwrap().id;
let ty1 = iter_type_vars(params1).nth(0).unwrap().ty;
let ty2 = iter_type_vars(params2).nth(0).unwrap().ty;
Ok(self.get_intersection(ty1, ty2)?.map(|ty| {
self.add_ty(TObj {
obj_id: *id1,
fields: fields.clone(),
params: into_var_map([TypeVar { id: tv_id, ty }]),
})
}))
}
(TVirtual { ty: ty1 }, TVirtual { ty: ty2 }) => {
Ok(self.get_intersection(*ty1, *ty2)?.map(|ty| self.add_ty(TVirtual { ty })))

159
nac3core/src/typecheck/typedef/test.rs
View File

@ -32,10 +32,7 @@ impl Unifier {
ty1.len() == ty2.len()
&& ty1.iter().zip(ty2.iter()).all(|(t1, t2)| self.eq(*t1, *t2))
}
(TypeEnum::TList { ty: ty1 }, TypeEnum::TList { ty: ty2 })
| (TypeEnum::TVirtual { ty: ty1 }, TypeEnum::TVirtual { ty: ty2 }) => {
self.eq(*ty1, *ty2)
}
(TypeEnum::TVirtual { ty: ty1 }, TypeEnum::TVirtual { ty: ty2 }) => self.eq(*ty1, *ty2),
(
TypeEnum::TObj { obj_id: id1, params: params1, .. },
TypeEnum::TObj { obj_id: id2, params: params2, .. },
@ -119,6 +116,15 @@ impl TestEnvironment {
params: into_var_map([tvar]),
}),
);
let tvar = unifier.get_dummy_var();
type_mapping.insert(
"list".into(),
unifier.add_ty(TypeEnum::TObj {
obj_id: PrimDef::List.id(),
fields: HashMap::new(),
params: into_var_map([tvar]),
}),
);
TestEnvironment { unifier, type_mapping }
}
@ -133,6 +139,36 @@ impl TestEnvironment {
// for testing only, so we can just panic when the input is malformed
let end = typ.find(|c| ['[', ',', ']', '='].contains(&c)).unwrap_or(typ.len());
match &typ[..end] {
"list" => {
let mut s = &typ[end..];
assert_eq!(&s[0..1], "[");
let mut ty = Vec::new();
while &s[0..1] != "]" {
let result = self.internal_parse(&s[1..], mapping);
ty.push(result.0);
s = result.1;
}
assert_eq!(ty.len(), 1);
let list_elem_tvar = if let TypeEnum::TObj { params, .. } =
&*self.unifier.get_ty_immutable(self.type_mapping["list"])
{
iter_type_vars(params).next().unwrap()
} else {
unreachable!()
};
(
self.unifier
.subst(
self.type_mapping["list"],
&into_var_map([TypeVar { id: list_elem_tvar.id, ty: ty[0] }]),
)
.unwrap(),
&s[1..],
)
}
"tuple" => {
let mut s = &typ[end..];
assert_eq!(&s[0..1], "[");
@ -144,12 +180,6 @@ impl TestEnvironment {
}
(self.unifier.add_ty(TypeEnum::TTuple { ty }), &s[1..])
}
"list" => {
assert_eq!(&typ[end..=end], "[");
let (ty, s) = self.internal_parse(&typ[end + 1..], mapping);
assert_eq!(&s[0..1], "]");
(self.unifier.add_ty(TypeEnum::TList { ty }), &s[1..])
}
"Record" => {
let mut s = &typ[end..];
assert_eq!(&s[0..1], "[");
@ -274,7 +304,7 @@ fn test_unify(
("v1", "tuple[int]"),
("v2", "list[int]"),
],
(("v1", "v2"), "Incompatible types: list[0] and tuple[0]")
(("v1", "v2"), "Incompatible types: 11[0] and tuple[0]")
; "type mismatch"
)]
#[test_case(2,
@ -298,7 +328,7 @@ fn test_unify(
("v1", "Record[a=float,b=int]"),
("v2", "Foo[v3]"),
],
(("v1", "v2"), "`3[typevar4]::b` field/method does not exist")
(("v1", "v2"), "`3[typevar5]::b` field/method does not exist")
; "record obj merge"
)]
/// Test cases for invalid unifications.
@ -388,6 +418,14 @@ fn test_typevar_range() {
let int_list = env.parse("list[int]", &HashMap::new());
let float_list = env.parse("list[float]", &HashMap::new());
let list_elem_tvar = if let TypeEnum::TObj { params, .. } =
&*env.unifier.get_ty_immutable(env.type_mapping["list"])
{
iter_type_vars(params).next().unwrap()
} else {
unreachable!()
};
// unification between v and int
// where v in (int, bool)
let v = env.unifier.get_fresh_var_with_range(&[int, boolean], None, None).ty;
@ -398,7 +436,7 @@ fn test_typevar_range() {
let v = env.unifier.get_fresh_var_with_range(&[int, boolean], None, None).ty;
assert_eq!(
env.unify(int_list, v),
Err("Expected any one of these types: 0, 2, but got list[0]".to_string())
Err("Expected any one of these types: 0, 2, but got 11[0]".to_string())
);
// unification between v and float
@ -410,7 +448,11 @@ fn test_typevar_range() {
);
let v1 = env.unifier.get_fresh_var_with_range(&[int, boolean], None, None).ty;
let v1_list = env.unifier.add_ty(TypeEnum::TList { ty: v1 });
let v1_list = env.unifier.add_ty(TypeEnum::TObj {
obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
fields: Mapping::default(),
params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: v1 }]),
});
let v = env.unifier.get_fresh_var_with_range(&[int, v1_list], None, None).ty;
// unification between v and int
// where v in (int, list[v1]), v1 in (int, bool)
@ -424,9 +466,10 @@ fn test_typevar_range() {
let v = env.unifier.get_fresh_var_with_range(&[int, v1_list], None, None).ty;
// unification between v and list[float]
// where v in (int, list[v1]), v1 in (int, bool)
println!("float_list: {}, v: {}", env.unifier.stringify(float_list), env.unifier.stringify(v));
assert_eq!(
env.unify(float_list, v),
Err("Expected any one of these types: 0, list[typevar5], but got list[1]\n\nNotes:\n typevar5 ∈ {0, 2}".to_string())
Err("Expected any one of these types: 0, 11[typevar6], but got 11[1]\n\nNotes:\n typevar6 ∈ {0, 2}".to_string())
);
let a = env.unifier.get_fresh_var_with_range(&[int, float], None, None).ty;
@ -441,34 +484,66 @@ fn test_typevar_range() {
let a = env.unifier.get_fresh_var_with_range(&[int, float], None, None).ty;
let b = env.unifier.get_fresh_var_with_range(&[boolean, float], None, None).ty;
let a_list = env.unifier.add_ty(TypeEnum::TList { ty: a });
let a_list = env.unifier.add_ty(TypeEnum::TObj {
obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
fields: Mapping::default(),
params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: a }]),
});
let a_list = env.unifier.get_fresh_var_with_range(&[a_list], None, None).ty;
let b_list = env.unifier.add_ty(TypeEnum::TList { ty: b });
let b_list = env.unifier.add_ty(TypeEnum::TObj {
obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
fields: Mapping::default(),
params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: b }]),
});
let b_list = env.unifier.get_fresh_var_with_range(&[b_list], None, None).ty;
env.unifier.unify(a_list, b_list).unwrap();
let float_list = env.unifier.add_ty(TypeEnum::TList { ty: float });
let float_list = env.unifier.add_ty(TypeEnum::TObj {
obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
fields: Mapping::default(),
params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: float }]),
});
env.unifier.unify(a_list, float_list).unwrap();
// previous unifications should not affect a and b
env.unifier.unify(a, int).unwrap();
let a = env.unifier.get_fresh_var_with_range(&[int, float], None, None).ty;
let b = env.unifier.get_fresh_var_with_range(&[boolean, float], None, None).ty;
let a_list = env.unifier.add_ty(TypeEnum::TList { ty: a });
let b_list = env.unifier.add_ty(TypeEnum::TList { ty: b });
let a_list = env.unifier.add_ty(TypeEnum::TObj {
obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
fields: Mapping::default(),
params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: a }]),
});
let b_list = env.unifier.add_ty(TypeEnum::TObj {
obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
fields: Mapping::default(),
params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: b }]),
});
env.unifier.unify(a_list, b_list).unwrap();
let int_list = env.unifier.add_ty(TypeEnum::TList { ty: int });
let int_list = env.unifier.add_ty(TypeEnum::TObj {
obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
fields: Mapping::default(),
params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: int }]),
});
assert_eq!(
env.unify(a_list, int_list),
Err("Incompatible types: list[typevar22] and list[0]\
\n\nNotes:\n typevar22 ∈ {1}"
Err("Incompatible types: 11[typevar23] and 11[0]\
\n\nNotes:\n typevar23 ∈ {1}"
.into())
);
let a = env.unifier.get_fresh_var_with_range(&[int, float], None, None).ty;
let b = env.unifier.get_dummy_var().ty;
let a_list = env.unifier.add_ty(TypeEnum::TList { ty: a });
let a_list = env.unifier.add_ty(TypeEnum::TObj {
obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
fields: Mapping::default(),
params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: a }]),
});
let a_list = env.unifier.get_fresh_var_with_range(&[a_list], None, None).ty;
let b_list = env.unifier.add_ty(TypeEnum::TList { ty: b });
let b_list = env.unifier.add_ty(TypeEnum::TObj {
obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
fields: Mapping::default(),
params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: b }]),
});
env.unifier.unify(a_list, b_list).unwrap();
assert_eq!(
env.unify(b, boolean),
@ -482,16 +557,25 @@ fn test_rigid_var() {
let a = env.unifier.get_fresh_rigid_var(None, None).ty;
let b = env.unifier.get_fresh_rigid_var(None, None).ty;
let x = env.unifier.get_dummy_var().ty;
let list_a = env.unifier.add_ty(TypeEnum::TList { ty: a });
let list_x = env.unifier.add_ty(TypeEnum::TList { ty: x });
let list_elem_tvar = env.unifier.get_fresh_var(Some("list_elem".into()), None);
let list_a = env.unifier.add_ty(TypeEnum::TObj {
obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
fields: Mapping::default(),
params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: a }]),
});
let list_x = env.unifier.add_ty(TypeEnum::TObj {
obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
fields: Mapping::default(),
params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: x }]),
});
let int = env.parse("int", &HashMap::new());
let list_int = env.parse("list[int]", &HashMap::new());
assert_eq!(env.unify(a, b), Err("Incompatible types: typevar3 and typevar2".to_string()));
assert_eq!(env.unify(a, b), Err("Incompatible types: typevar4 and typevar3".to_string()));
env.unifier.unify(list_a, list_x).unwrap();
assert_eq!(
env.unify(list_x, list_int),
Err("Incompatible types: list[typevar2] and list[0]".to_string())
Err("Incompatible types: 11[typevar3] and 11[0]".to_string())
);
env.unifier.replace_rigid_var(a, int);
@ -506,10 +590,21 @@ fn test_instantiation() {
let float = env.parse("float", &HashMap::new());
let list_int = env.parse("list[int]", &HashMap::new());
let obj_map: HashMap<_, _> = [(0usize, "int"), (1, "float"), (2, "bool")].into();
let list_elem_tvar = if let TypeEnum::TObj { params, .. } =
&*env.unifier.get_ty_immutable(env.type_mapping["list"])
{
iter_type_vars(params).next().unwrap()
} else {
unreachable!()
};
let obj_map: HashMap<_, _> = [(0usize, "int"), (1, "float"), (2, "bool"), (11, "list")].into();
let v = env.unifier.get_fresh_var_with_range(&[int, boolean], None, None).ty;
let list_v = env.unifier.add_ty(TypeEnum::TList { ty: v });
let list_v = env
.unifier
.subst(env.type_mapping["list"], &into_var_map([TypeVar { id: list_elem_tvar.id, ty: v }]))
.unwrap();
let v1 = env.unifier.get_fresh_var_with_range(&[list_v, int], None, None).ty;
let v2 = env.unifier.get_fresh_var_with_range(&[list_int, float], None, None).ty;
let t = env.unifier.get_dummy_var().ty;
@ -536,7 +631,7 @@ fn test_instantiation() {
tuple[int, list[bool], list[int]]
tuple[int, list[int], float]
tuple[int, list[int], list[int]]
v5"
v6"
}
.split('\n')
.collect_vec();