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nac3core: added exception type and fixed primitive representation 

- Added `Exception` primitive type and some builtin exception types.
  Note that all exception types share the same layout, and should
  inherit from the base `Exception` type. There are some hacks in the
  toplevel module for handling exception types, we should revisit and
  fix them later.
- Added new primitive types to concrete type module, otherwise there
  would be some weird type errors.
- Changed the representation of strings to CSlice<u8>, instead of
  CString.
This commit is contained in:
pca006132 2022-02-12 21:09:23 +08:00
parent 050c862c1a
commit b267a656a8
10 changed files with 384 additions and 91 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
nac3core/src/codegen/concrete_type.rs
View File

@ -31,6 +31,9 @@ pub enum Primitive {
Float,
Bool,
None,
Range,
Str,
Exception
}
#[derive(Debug)]
@ -66,6 +69,9 @@ impl ConcreteTypeStore {
ConcreteTypeEnum::TPrimitive(Primitive::Float),
ConcreteTypeEnum::TPrimitive(Primitive::Bool),
ConcreteTypeEnum::TPrimitive(Primitive::None),
ConcreteTypeEnum::TPrimitive(Primitive::Range),
ConcreteTypeEnum::TPrimitive(Primitive::Str),
ConcreteTypeEnum::TPrimitive(Primitive::Exception),
],
}
}
@ -118,6 +124,12 @@ impl ConcreteTypeStore {
ConcreteType(3)
} else if unifier.unioned(ty, primitives.none) {
ConcreteType(4)
} else if unifier.unioned(ty, primitives.range) {
ConcreteType(5)
} else if unifier.unioned(ty, primitives.str) {
ConcreteType(6)
} else if unifier.unioned(ty, primitives.exception) {
ConcreteType(7)
} else if let Some(cty) = cache.get(&ty) {
if let Some(cty) = cty {
*cty
@ -211,6 +223,9 @@ impl ConcreteTypeStore {
Primitive::Float => primitives.float,
Primitive::Bool => primitives.bool,
Primitive::None => primitives.none,
Primitive::Range => primitives.range,
Primitive::Str => primitives.str,
Primitive::Exception => primitives.exception,
};
*cache.get_mut(&cty).unwrap() = Some(ty);
return ty;

33
nac3core/src/codegen/expr.rs
View File

@ -76,14 +76,20 @@ impl<'ctx, 'a> CodeGenContext<'ctx, 'a> {
index
}
fn gen_symbol_val(&mut self, val: &SymbolValue) -> BasicValueEnum<'ctx> {
pub fn gen_symbol_val(&mut self, generator: &mut dyn CodeGenerator, val: &SymbolValue) -> BasicValueEnum<'ctx> {
match val {
SymbolValue::I32(v) => self.ctx.i32_type().const_int(*v as u64, true).into(),
SymbolValue::I64(v) => self.ctx.i64_type().const_int(*v as u64, true).into(),
SymbolValue::Bool(v) => self.ctx.bool_type().const_int(*v as u64, true).into(),
SymbolValue::Double(v) => self.ctx.f64_type().const_float(*v).into(),
SymbolValue::Str(v) => {
let str_ptr = self.builder.build_global_string_ptr(v, "const").as_pointer_value().into();
let size = generator.get_size_type(self.ctx).const_int(v.len() as u64, false);
let ty = self.get_llvm_type(generator, self.primitives.str).into_struct_type();
ty.const_named_struct(&[str_ptr, size.into()]).into()
}
SymbolValue::Tuple(ls) => {
let vals = ls.iter().map(|v| self.gen_symbol_val(v)).collect_vec();
let vals = ls.iter().map(|v| self.gen_symbol_val(generator, v)).collect_vec();
let fields = vals.iter().map(|v| v.get_type()).collect_vec();
let ty = self.ctx.struct_type(&fields, false);
let ptr = self.builder.build_alloca(ty, "tuple");
@ -118,7 +124,7 @@ impl<'ctx, 'a> CodeGenContext<'ctx, 'a> {
)
}
fn gen_const(&mut self, value: &Constant, ty: Type) -> BasicValueEnum<'ctx> {
pub fn gen_const(&mut self, generator: &mut dyn CodeGenerator, value: &Constant, ty: Type) -> BasicValueEnum<'ctx> {
match value {
Constant::Bool(v) => {
assert!(self.unifier.unioned(ty, self.primitives.bool));
@ -145,7 +151,7 @@ impl<'ctx, 'a> CodeGenContext<'ctx, 'a> {
let types =
if let TypeEnum::TTuple { ty } = &*ty { ty.clone() } else { unreachable!() };
let values = zip(types.into_iter(), v.iter())
.map(|(ty, v)| self.gen_const(v, ty))
.map(|(ty, v)| self.gen_const(generator, v, ty))
.collect_vec();
let types = values.iter().map(BasicValueEnum::get_type).collect_vec();
let ty = self.ctx.struct_type(&types, false);
@ -153,7 +159,16 @@ impl<'ctx, 'a> CodeGenContext<'ctx, 'a> {
}
Constant::Str(v) => {
assert!(self.unifier.unioned(ty, self.primitives.str));
self.builder.build_global_string_ptr(v, "const").as_pointer_value().into()
if let Some(v) = self.const_strings.get(v) {
*v
} else {
let str_ptr = self.builder.build_global_string_ptr(v, "const").as_pointer_value().into();
let size = generator.get_size_type(self.ctx).const_int(v.len() as u64, false);
let ty = self.get_llvm_type(generator, self.primitives.str);
let val = ty.into_struct_type().const_named_struct(&[str_ptr, size.into()]).into();
self.const_strings.insert(v.to_string(), val);
val
}
}
_ => unreachable!(),
}
@ -241,6 +256,14 @@ impl<'ctx, 'a> CodeGenContext<'ctx, 'a> {
_ => unimplemented!(),
}
}
pub fn gen_string<G: CodeGenerator, S: Into<String>>(
&mut self,
generator: &mut G,
s: S
) -> BasicValueEnum<'ctx> {
self.gen_const(generator, &nac3parser::ast::Constant::Str(s.into()), self.primitives.str)
}
}
pub fn gen_constructor<'ctx, 'a, G: CodeGenerator>(

45
nac3core/src/codegen/mod.rs
View File

@ -314,25 +314,50 @@ pub fn gen_func<'ctx, G: CodeGenerator>(
none: unifier.get_representative(primitives.none),
range: unifier.get_representative(primitives.range),
str: unifier.get_representative(primitives.str),
exception: unifier.get_representative(primitives.exception),
};
let mut type_cache: HashMap<_, _> = [
(unifier.get_representative(primitives.int32), context.i32_type().into()),
(unifier.get_representative(primitives.int64), context.i64_type().into()),
(unifier.get_representative(primitives.float), context.f64_type().into()),
(unifier.get_representative(primitives.bool), context.bool_type().into()),
(primitives.int32, context.i32_type().into()),
(primitives.int64, context.i64_type().into()),
(primitives.float, context.f64_type().into()),
(primitives.bool, context.bool_type().into()),
(primitives.str, {
let str_type = context.opaque_struct_type("str");
let fields = [
context.i8_type().ptr_type(AddressSpace::Generic).into(),
generator.get_size_type(context).into(),
];
str_type.set_body(&fields, false);
str_type.into()
}),
(
unifier.get_representative(primitives.str),
context.i8_type().ptr_type(AddressSpace::Generic).into(),
),
(
unifier.get_representative(primitives.range),
context.i32_type().array_type(3).ptr_type(AddressSpace::Generic).into()
primitives.range,
context.i32_type().array_type(3).ptr_type(AddressSpace::Generic).into(),
),
]
.iter()
.cloned()
.collect();
type_cache.insert(primitives.exception, {
let exception = context.opaque_struct_type("Exception");
let int32 = context.i32_type().into();
let int64 = context.i64_type().into();
let str_ty = *type_cache.get(&primitives.str).unwrap();
let fields = [
int32,
str_ty,
int32,
int32,
str_ty,
str_ty,
int64,
int64,
int64
];
exception.set_body(&fields, false);
exception.ptr_type(AddressSpace::Generic).into()
});
let (args, ret) = if let ConcreteTypeEnum::TFunc { args, ret, .. } =
task.store.get(task.signature)

65
nac3core/src/codegen/stmt.rs
View File

@ -402,6 +402,71 @@ pub fn gen_if<'ctx, 'a, G: CodeGenerator>(
}
}
then_exited && else_exited
pub fn exn_constructor<'ctx, 'a>(
ctx: &mut CodeGenContext<'ctx, 'a>,
obj: Option<(Type, ValueEnum<'ctx>)>,
_fun: (&FunSignature, DefinitionId),
mut args: Vec<(Option<StrRef>, ValueEnum<'ctx>)>,
generator: &mut dyn CodeGenerator
) -> Option<BasicValueEnum<'ctx>> {
let (zelf_ty, zelf) = obj.unwrap();
let zelf = zelf.to_basic_value_enum(ctx, generator).into_pointer_value();
let int32 = ctx.ctx.i32_type();
let zero = int32.const_zero();
let zelf_id = {
if let TypeEnum::TObj { obj_id, .. } = &*ctx.unifier.get_ty(zelf_ty) {
obj_id.0
} else {
unreachable!()
}
};
let defs = ctx.top_level.definitions.read();
let def = defs[zelf_id].read();
let zelf_name = if let TopLevelDef::Class { name, .. } = &*def {
*name
} else {
unreachable!()
};
let exception_name = format!("0:{}", zelf_name);
unsafe {
let id_ptr = ctx.builder.build_in_bounds_gep(zelf, &[zero, zero], "exn.id");
let id = ctx.resolver.get_string_id(&exception_name);
ctx.builder.build_store(id_ptr, int32.const_int(id as u64, false));
let empty_string = ctx.gen_const(generator, &Constant::Str("".into()), ctx.primitives.str);
let ptr = ctx.builder.build_in_bounds_gep(
zelf, &[zero, int32.const_int(5, false)], "exn.msg");
let msg = if !args.is_empty() {
args.remove(0).1.to_basic_value_enum(ctx, generator)
} else {
empty_string
};
ctx.builder.build_store(ptr, msg);
for i in [6, 7, 8].iter() {
let value = if !args.is_empty() {
args.remove(0).1.to_basic_value_enum(ctx, generator)
} else {
ctx.ctx.i64_type().const_zero().into()
};
let ptr = ctx.builder.build_in_bounds_gep(
zelf, &[zero, int32.const_int(*i, false)], "exn.param");
ctx.builder.build_store(ptr, value);
}
// set file, func to empty string
for i in [1, 4].iter() {
let ptr = ctx.builder.build_in_bounds_gep(
zelf, &[zero, int32.const_int(*i, false)], "exn.str");
ctx.builder.build_store(ptr, empty_string);
}
// set ints to zero
for i in [2, 3].iter() {
let ptr = ctx.builder.build_in_bounds_gep(
zelf, &[zero, int32.const_int(*i, false)], "exn.ints");
ctx.builder.build_store(ptr, zero);
}
}
Some(zelf.into())
}
} else {
unreachable!()
}

67
nac3core/src/symbol_resolver.rs
View File

@ -2,14 +2,17 @@ use std::collections::HashMap;
use std::fmt::Debug;
use std::{cell::RefCell, sync::Arc};
use crate::{codegen::CodeGenerator, typecheck::{
type_inferencer::PrimitiveStore,
typedef::{Type, Unifier},
}};
use crate::{
codegen::CodeGenContext,
toplevel::{DefinitionId, TopLevelDef},
};
use crate::{
codegen::CodeGenerator,
typecheck::{
type_inferencer::PrimitiveStore,
typedef::{Type, Unifier},
},
};
use crate::{location::Location, typecheck::typedef::TypeEnum};
use inkwell::values::{BasicValueEnum, FloatValue, IntValue, PointerValue};
use itertools::{chain, izip};
@ -20,6 +23,7 @@ use parking_lot::RwLock;
pub enum SymbolValue {
I32(i32),
I64(i64),
Str(String),
Double(f64),
Bool(bool),
Tuple(Vec<SymbolValue>),
@ -109,7 +113,7 @@ pub trait SymbolResolver {
}
thread_local! {
static IDENTIFIER_ID: [StrRef; 8] = [
static IDENTIFIER_ID: [StrRef; 10] = [
"int32".into(),
"int64".into(),
"float".into(),
@ -117,7 +121,9 @@ thread_local! {
"None".into(),
"virtual".into(),
"list".into(),
"tuple".into()
"tuple".into(),
"str".into(),
"Exception".into(),
];
}
@ -139,6 +145,8 @@ pub fn parse_type_annotation<T>(
let virtual_id = ids[5];
let list_id = ids[6];
let tuple_id = ids[7];
let str_id = ids[8];
let exn_id = ids[9];
let name_handling = |id: &StrRef, unifier: &mut Unifier| {
if *id == int32_id {
@ -151,6 +159,10 @@ pub fn parse_type_annotation<T>(
Ok(primitives.bool)
} else if *id == none_id {
Ok(primitives.none)
} else if *id == str_id {
Ok(primitives.str)
} else if *id == exn_id {
Ok(primitives.exception)
} else {
let obj_id = resolver.get_identifier_def(*id);
if let Some(obj_id) = obj_id {
@ -179,8 +191,7 @@ pub fn parse_type_annotation<T>(
}
} else {
// it could be a type variable
let ty = resolver
.get_symbol_type(unifier, top_level_defs, primitives, *id)?;
let ty = resolver.get_symbol_type(unifier, top_level_defs, primitives, *id)?;
if let TypeEnum::TVar { .. } = &*unifier.get_ty(ty) {
Ok(ty)
} else {
@ -192,35 +203,17 @@ pub fn parse_type_annotation<T>(
let subscript_name_handle = |id: &StrRef, slice: &Expr<T>, unifier: &mut Unifier| {
if *id == virtual_id {
let ty = parse_type_annotation(
resolver,
top_level_defs,
unifier,
primitives,
slice,
)?;
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,
)?;
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
.iter()
.map(|elt| {
parse_type_annotation(
resolver,
top_level_defs,
unifier,
primitives,
elt,
)
parse_type_annotation(resolver, top_level_defs, unifier, primitives, elt)
})
.collect::<Result<Vec<_>, _>>()?;
Ok(unifier.add_ty(TypeEnum::TTuple { ty }))
@ -231,23 +224,11 @@ pub fn parse_type_annotation<T>(
let types = if let Tuple { elts, .. } = &slice.node {
elts.iter()
.map(|v| {
parse_type_annotation(
resolver,
top_level_defs,
unifier,
primitives,
v,
)
parse_type_annotation(resolver, top_level_defs, unifier, primitives, v)
})
.collect::<Result<Vec<_>, _>>()?
} else {
vec![parse_type_annotation(
resolver,
top_level_defs,
unifier,
primitives,
slice,
)?]
vec![parse_type_annotation(resolver, top_level_defs, unifier, primitives, slice)?]
};
let obj_id = resolver

101
nac3core/src/toplevel/builtins.rs
View File

@ -1,6 +1,6 @@
use super::*;
use crate::{
codegen::{expr::destructure_range, irrt::calculate_len_for_slice_range},
codegen::{expr::destructure_range, irrt::calculate_len_for_slice_range, stmt::exn_constructor},
symbol_resolver::SymbolValue,
};
use inkwell::{FloatPredicate, IntPredicate};
@ -21,6 +21,47 @@ pub fn get_builtins(primitives: &mut (PrimitiveStore, Unifier)) -> BuiltinInfo {
let num_ty = primitives.1.get_fresh_var_with_range(&[int32, int64, float, boolean]);
let var_map: HashMap<_, _> = vec![(num_ty.1, num_ty.0)].into_iter().collect();
let exception_fields = vec![
("__name__".into(), int32, true),
("__file__".into(), string, true),
("__line__".into(), int32, true),
("__col__".into(), int32, true),
("__func__".into(), string, true),
("__message__".into(), string, true),
("__param0__".into(), int64, true),
("__param1__".into(), int64, true),
("__param2__".into(), int64, true),
];
let div_by_zero = primitives.1.add_ty(TypeEnum::TObj {
obj_id: DefinitionId(10),
fields: RefCell::new(exception_fields.iter().map(|(a, b, c)| (*a, (*b, *c))).collect()),
params: Default::default()
});
let index_error = primitives.1.add_ty(TypeEnum::TObj {
obj_id: DefinitionId(11),
fields: RefCell::new(exception_fields.iter().map(|(a, b, c)| (*a, (*b, *c))).collect()),
params: Default::default()
});
let exn_cons_args = vec![
FuncArg { name: "msg".into(), ty: string,
default_value: Some(SymbolValue::Str("".into()))},
FuncArg { name: "param0".into(), ty: int64,
default_value: Some(SymbolValue::I64(0))},
FuncArg { name: "param1".into(), ty: int64,
default_value: Some(SymbolValue::I64(0))},
FuncArg { name: "param2".into(), ty: int64,
default_value: Some(SymbolValue::I64(0))},
];
let div_by_zero_signature = primitives.1.add_ty(TypeEnum::TFunc(RefCell::new(FunSignature {
args: exn_cons_args.clone(),
ret: div_by_zero,
vars: Default::default()
})));
let index_error_signature = primitives.1.add_ty(TypeEnum::TFunc(RefCell::new(FunSignature {
args: exn_cons_args,
ret: index_error,
vars: Default::default()
})));
let top_level_def_list = vec![
Arc::new(RwLock::new(TopLevelComposer::make_top_level_class_def(
0,
@ -49,6 +90,62 @@ pub fn get_builtins(primitives: &mut (PrimitiveStore, Unifier)) -> BuiltinInfo {
None,
))),
Arc::new(RwLock::new(TopLevelComposer::make_top_level_class_def(6, None, "str".into(), None))),
Arc::new(RwLock::new(TopLevelDef::Class {
name: "Exception".into(),
object_id: DefinitionId(7),
type_vars: Default::default(),
fields: exception_fields.clone(),
methods: Default::default(),
ancestors: vec![],
constructor: None,
resolver: None,
})),
Arc::new(RwLock::new(TopLevelDef::Function {
name: "ZeroDivisionError.__init__".into(),
simple_name: "__init__".into(),
signature: div_by_zero_signature,
var_id: Default::default(),
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(exn_constructor))))
})),
Arc::new(RwLock::new(TopLevelDef::Function {
name: "IndexError.__init__".into(),
simple_name: "__init__".into(),
signature: index_error_signature,
var_id: Default::default(),
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(exn_constructor))))
})),
Arc::new(RwLock::new(TopLevelDef::Class {
name: "ZeroDivisionError".into(),
object_id: DefinitionId(10),
type_vars: Default::default(),
fields: exception_fields.clone(),
methods: vec![("__init__".into(), div_by_zero_signature, DefinitionId(8))],
ancestors: vec![
TypeAnnotation::CustomClass { id: DefinitionId(10), params: Default::default() },
TypeAnnotation::CustomClass { id: DefinitionId(7), params: Default::default() }
],
constructor: Some(div_by_zero_signature),
resolver: None,
})),
Arc::new(RwLock::new(TopLevelDef::Class {
name: "IndexError".into(),
object_id: DefinitionId(11),
type_vars: Default::default(),
fields: exception_fields,
methods: vec![("__init__".into(), index_error_signature, DefinitionId(9))],
ancestors: vec![
TypeAnnotation::CustomClass { id: DefinitionId(11), params: Default::default() },
TypeAnnotation::CustomClass { id: DefinitionId(7), params: Default::default() }
],
constructor: Some(index_error_signature),
resolver: None,
})),
Arc::new(RwLock::new(TopLevelDef::Function {
name: "int32".into(),
simple_name: "int32".into(),
@ -609,6 +706,8 @@ pub fn get_builtins(primitives: &mut (PrimitiveStore, Unifier)) -> BuiltinInfo {
(
izip!(top_level_def_list, ast_list).collect_vec(),
&[
"ZeroDivisionError",
"IndexError",
"int32",
"int64",
"float",

120
nac3core/src/toplevel/composer.rs
View File

@ -4,7 +4,8 @@ use nac3parser::ast::fold::Fold;
use crate::{
typecheck::type_inferencer::{FunctionData, Inferencer},
codegen::expr::get_subst_key,
codegen::{expr::get_subst_key, stmt::exn_constructor},
symbol_resolver::SymbolValue,
};
use super::*;
@ -90,8 +91,13 @@ impl TopLevelComposer {
assert!(name == *simple_name);
builtin_ty.insert(name, *signature);
builtin_id.insert(name, DefinitionId(id));
} else {
unreachable!()
} else if let TopLevelDef::Class { name, constructor, object_id, type_vars, .. } = &*def {
assert!(id == object_id.0);
assert!(type_vars.is_empty());
if let Some(constructor) = constructor {
builtin_ty.insert(*name, *constructor);
}
builtin_id.insert(*name, DefinitionId(id));
}
}
@ -471,7 +477,6 @@ impl TopLevelComposer {
let unifier = self.unifier.borrow_mut();
// first, only push direct parent into the list
// skip 5 to skip analyzing the primitives
for (class_def, class_ast) in self.definition_ast_list.iter_mut().skip(self.builtin_num) {
let mut class_def = class_def.write();
let (class_def_id, class_bases, class_ancestors, class_resolver, class_type_vars) = {
@ -540,7 +545,6 @@ impl TopLevelComposer {
// second, get all ancestors
let mut ancestors_store: HashMap<DefinitionId, Vec<TypeAnnotation>> = Default::default();
// skip 5 to skip analyzing the primitives
for (class_def, _) in self.definition_ast_list.iter().skip(self.builtin_num) {
let class_def = class_def.read();
let (class_ancestors, class_id) = {
@ -562,8 +566,7 @@ impl TopLevelComposer {
}
// insert the ancestors to the def list
// skip 5 to skip analyzing the primitives
for (class_def, _) in self.definition_ast_list.iter_mut().skip(self.builtin_num) {
for (class_def, class_ast) in self.definition_ast_list.iter_mut().skip(self.builtin_num) {
let mut class_def = class_def.write();
let (class_ancestors, class_id, class_type_vars) = {
if let TopLevelDef::Class { ancestors, object_id, type_vars, .. } =
@ -581,6 +584,26 @@ impl TopLevelComposer {
// insert self type annotation to the front of the vector to maintain the order
class_ancestors
.insert(0, make_self_type_annotation(class_type_vars.as_slice(), class_id));
// special case classes that inherit from Exception
if class_ancestors.iter().any(|ann| matches!(ann, TypeAnnotation::CustomClass { id, .. } if id.0 == 7)) {
// if inherited from Exception, the body should be a pass
if let ast::StmtKind::ClassDef { body, .. } = &class_ast.as_ref().unwrap().node {
if body.len() != 1 || !matches!(body[0].node, ast::StmtKind::Pass { .. }) {
return Err("Classes inherited from exception should have `pass` as body".into());
}
} else {
unreachable!()
}
}
}
// deal with ancestor of Exception object
if let TopLevelDef::Class { name, ancestors, object_id, .. } = &mut *self.definition_ast_list[7].0.write() {
assert_eq!(*name, "Exception".into());
ancestors.push(make_self_type_annotation(&[], *object_id));
} else {
unreachable!();
}
Ok(())
@ -595,7 +618,6 @@ impl TopLevelComposer {
let mut type_var_to_concrete_def: HashMap<Type, TypeAnnotation> = HashMap::new();
// skip 5 to skip analyzing the primitives
for (class_def, class_ast) in def_ast_list.iter().skip(self.builtin_num) {
if matches!(&*class_def.read(), TopLevelDef::Class { .. }) {
Self::analyze_single_class_methods_fields(
@ -610,8 +632,6 @@ impl TopLevelComposer {
}
}
// println!("type_var_to_concrete_def1: {:?}", type_var_to_concrete_def);
// handle the inheritanced methods and fields
let mut current_ancestor_depth: usize = 2;
loop {
@ -646,19 +666,8 @@ impl TopLevelComposer {
}
}
// println!("type_var_to_concrete_def3: {:?}\n", type_var_to_concrete_def);
// unification of previously assigned typevar
for (ty, def) in type_var_to_concrete_def {
// println!(
// "{:?}_{} -> {:?}\n",
// ty,
// unifier.stringify(ty,
// &mut |id| format!("class{}", id),
// &mut |id| format!("tvar{}", id)
// ),
// def
// );
let target_ty =
get_type_from_type_annotation_kinds(&temp_def_list, unifier, primitives, &def)?;
unifier.unify(ty, target_ty)?;
@ -1301,10 +1310,14 @@ impl TopLevelComposer {
fn analyze_function_instance(&mut self) -> Result<(), String> {
// first get the class contructor type correct for the following type check in function body
// also do class field instantiation check
for (def, ast) in self.definition_ast_list.iter().skip(self.builtin_num) {
let init_str_id = "__init__".into();
let mut definition_extension = Vec::new();
let mut constructors = Vec::new();
for (i, (def, ast)) in self.definition_ast_list.iter().enumerate().skip(self.builtin_num) {
let class_def = def.read();
if let TopLevelDef::Class {
constructor,
ancestors,
methods,
fields,
type_vars,
@ -1314,13 +1327,54 @@ impl TopLevelComposer {
..
} = &*class_def
{
let self_type = get_type_from_type_annotation_kinds(
self.extract_def_list().as_slice(),
&mut self.unifier,
&self.primitives_ty,
&make_self_type_annotation(type_vars, *object_id),
)?;
if ancestors.iter().any(|ann| matches!(ann, TypeAnnotation::CustomClass { id, .. } if id.0 == 7)) {
// create constructor for these classes
let string = self.primitives_ty.str;
let int64 = self.primitives_ty.int64;
let signature = self.unifier.add_ty(TypeEnum::TFunc(RefCell::new(FunSignature {
args: vec![
FuncArg { name: "msg".into(), ty: string,
default_value: Some(SymbolValue::Str("".into()))},
FuncArg { name: "param0".into(), ty: int64,
default_value: Some(SymbolValue::I64(0))},
FuncArg { name: "param1".into(), ty: int64,
default_value: Some(SymbolValue::I64(0))},
FuncArg { name: "param2".into(), ty: int64,
default_value: Some(SymbolValue::I64(0))},
],
ret: self_type,
vars: Default::default()
})));
let cons_fun = TopLevelDef::Function {
name: format!("{}.{}", class_name, "__init__"),
simple_name: init_str_id,
signature,
var_id: Default::default(),
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(exn_constructor))))
};
constructors.push((i, signature, definition_extension.len()));
definition_extension.push((Arc::new(RwLock::new(cons_fun)), None));
self.unifier
.unify(constructor.unwrap(), signature)
.map_err(|old| format!("{} (at {})", old, ast.as_ref().unwrap().location))?;
continue;
}
let mut init_id: Option<DefinitionId> = None;
// get the class contructor type correct
let (contor_args, contor_type_vars) = {
let mut constructor_args: Vec<FuncArg> = Vec::new();
let mut type_vars: HashMap<u32, Type> = HashMap::new();
for (name, func_sig, id) in methods {
if name == &"__init__".into() {
if *name == init_str_id {
init_id = Some(*id);
if let TypeEnum::TFunc(sig) = self.unifier.get_ty(*func_sig).as_ref() {
let FunSignature { args, vars, .. } = &*sig.borrow();
@ -1333,12 +1387,6 @@ impl TopLevelComposer {
}
(constructor_args, type_vars)
};
let self_type = get_type_from_type_annotation_kinds(
self.extract_def_list().as_slice(),
&mut self.unifier,
&self.primitives_ty,
&make_self_type_annotation(type_vars, *object_id),
)?;
let contor_type = self.unifier.add_ty(TypeEnum::TFunc(
FunSignature { args: contor_args, ret: self_type, vars: contor_type_vars }
.into(),
@ -1352,7 +1400,7 @@ impl TopLevelComposer {
let init_ast =
self.definition_ast_list.get(init_id.0).unwrap().1.as_ref().unwrap();
if let ast::StmtKind::FunctionDef { name, body, .. } = &init_ast.node {
if name != &"__init__".into() {
if *name != init_str_id {
unreachable!("must be init function here")
}
let all_inited = Self::get_all_assigned_field(body.as_slice())?;
@ -1370,11 +1418,23 @@ impl TopLevelComposer {
}
}
}
for (i, signature, id) in constructors.into_iter() {
if let TopLevelDef::Class { methods, .. } = &mut *self.definition_ast_list[i].0.write() {
methods.push((init_str_id, signature,
DefinitionId(self.definition_ast_list.len() + id)));
} else {
unreachable!()
}
}
self.definition_ast_list.extend_from_slice(&definition_extension);
let ctx = Arc::new(self.make_top_level_context());
// type inference inside function body
for (id, (def, ast)) in self.definition_ast_list.iter().enumerate().skip(self.builtin_num)
{
if ast.is_none() {
continue;
}
let mut function_def = def.write();
if let TopLevelDef::Function {
instance_to_stmt,

24
nac3core/src/toplevel/helper.rs
View File

@ -90,7 +90,22 @@ impl TopLevelComposer {
fields: HashMap::new().into(),
params: HashMap::new().into(),
});
let primitives = PrimitiveStore { int32, int64, float, bool, none, range, str };
let exception = unifier.add_ty(TypeEnum::TObj {
obj_id: DefinitionId(7),
fields: vec![
("__name__".into(), (int32, true)),
("__file__".into(), (int32, true)),
("__line__".into(), (int32, true)),
("__col__".into(), (int32, true)),
("__func__".into(), (str, true)),
("__message__".into(), (str, true)),
("__param0__".into(), (int64, true)),
("__param1__".into(), (int64, true)),
("__param2__".into(), (int64, true)),
].into_iter().collect::<HashMap<_, _>>().into(),
params: HashMap::new().into(),
});
let primitives = PrimitiveStore { int32, int64, float, bool, none, range, str, exception };
crate::typecheck::magic_methods::set_primitives_magic_methods(&primitives, &mut unifier);
(primitives, unifier)
}
@ -381,6 +396,13 @@ impl TopLevelComposer {
Some("int64".to_string())
}
}
SymbolValue::Str(..) => {
if matches!(ty, TypeAnnotation::Primitive(t) if *t == primitive.str) {
None
} else {
Some("str".to_string())
}
}
SymbolValue::Tuple(elts) => {
if let TypeAnnotation::Tuple(elts_ty) = ty {
for (e, t) in elts.iter().zip(elts_ty.iter()) {

2
nac3core/src/toplevel/type_annotation.rs
View File

@ -63,6 +63,8 @@ pub fn parse_ast_to_type_annotation_kinds<T>(
Ok(TypeAnnotation::Primitive(primitives.none))
} else if id == &"str".into() {
Ok(TypeAnnotation::Primitive(primitives.str))
} else if id == &"Exception".into() {
Ok(TypeAnnotation::CustomClass { id: DefinitionId(7), params: Default::default() })
} else if let Some(obj_id) = resolver.get_identifier_def(*id) {
let type_vars = {
let def_read = top_level_defs[obj_id.0].try_read();

1
nac3core/src/typecheck/type_inferencer/mod.rs
View File

@ -37,6 +37,7 @@ pub struct PrimitiveStore {
pub none: Type,
pub range: Type,
pub str: Type,
pub exception: Type,
}
pub struct FunctionData {