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nac3core: parse type annotation python forwardref handling

This commit is contained in:
ychenfo 2021-11-11 02:46:41 +08:00
parent 66a9eda3c1
commit dab06bdb58
3 changed files with 272 additions and 261 deletions
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1
nac3artiq/demo/min_artiq.py
View File

@ -25,7 +25,6 @@ class virtual(Generic[T]):
import device_db
core_arguments = device_db.device_db["core"]["arguments"]
compiler = nac3artiq.NAC3(core_arguments["target"])
allow_registration = True
# Delay NAC3 analysis until all referenced variables are supposed to exist on the CPython side.

21
nac3core/src/symbol_resolver.rs
View File

@ -13,7 +13,7 @@ use crate::{
use crate::{location::Location, typecheck::typedef::TypeEnum};
use inkwell::values::BasicValueEnum;
use itertools::{chain, izip};
use nac3parser::ast::{Expr, StrRef};
use nac3parser::ast::{Constant::Str, Expr, StrRef};
use parking_lot::RwLock;
#[derive(Clone, PartialEq, Debug)]
@ -79,8 +79,7 @@ pub fn parse_type_annotation<T>(
let list_id = ids[6];
let tuple_id = ids[7];
match &expr.node {
Name { id, .. } => {
let name_handling = |id: &StrRef, unifier: &mut Unifier| {
if *id == int32_id {
Ok(primitives.int32)
} else if *id == int64_id {
@ -129,9 +128,9 @@ pub fn parse_type_annotation<T>(
}
}
}
}
Subscript { value, slice, .. } => {
if let Name { id, .. } = &value.node {
};
let subscript_name_handle = |id: &StrRef, slice: &Expr<T>, unifier: &mut Unifier| {
if *id == virtual_id {
let ty = parse_type_annotation(
resolver,
@ -232,6 +231,16 @@ pub fn parse_type_annotation<T>(
Err("Cannot use function name as type".into())
}
}
};
match &expr.node {
Name { id, .. } => name_handling(id, unifier),
Constant { value: Str(id), .. } => name_handling(&id.clone().into(), unifier),
Subscript { value, slice, .. } => {
if let Name { id, .. } = &value.node {
subscript_name_handle(id, slice, unifier)
} else if let Constant { value: Str(id), .. } = &value.node {
subscript_name_handle(&id.clone().into(), slice, unifier)
} else {
Err("unsupported type expression".into())
}

165
nac3core/src/toplevel/type_annotation.rs
View File

@ -1,7 +1,7 @@
use std::cell::RefCell;
use crate::typecheck::typedef::TypeVarMeta;
use ast::Constant::Str;
use super::*;
#[derive(Clone, Debug)]
@ -49,10 +49,9 @@ pub fn parse_ast_to_type_annotation_kinds<T>(
primitives: &PrimitiveStore,
expr: &ast::Expr<T>,
// the key stores the type_var of this topleveldef::class, we only need this field here
mut locked: HashMap<DefinitionId, Vec<Type>>,
locked: HashMap<DefinitionId, Vec<Type>>,
) -> Result<TypeAnnotation, String> {
match &expr.node {
ast::ExprKind::Name { id, .. } => {
let name_handle = |id: &StrRef, unifier: &mut Unifier, locked: HashMap<DefinitionId, Vec<Type>>| {
if id == &"int32".into() {
Ok(TypeAnnotation::Primitive(primitives.int32))
} else if id == &"int64".into() {
@ -95,74 +94,10 @@ pub fn parse_ast_to_type_annotation_kinds<T>(
} else {
Err("name cannot be parsed as a type annotation".into())
}
}
};
// virtual
ast::ExprKind::Subscript { value, slice, .. }
if {
matches!(&value.node, ast::ExprKind::Name { id, .. } if id == &"virtual".into())
} =>
{
let def = parse_ast_to_type_annotation_kinds(
resolver,
top_level_defs,
unifier,
primitives,
slice.as_ref(),
locked,
)?;
if !matches!(def, TypeAnnotation::CustomClass { .. }) {
unreachable!("must be concretized custom class kind in the virtual")
}
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()))
}
// tuple
ast::ExprKind::Subscript { value, slice, .. }
if {
matches!(&value.node, ast::ExprKind::Name { id, .. } if id == &"tuple".into())
} =>
{
if let ast::ExprKind::Tuple { elts, .. } = &slice.node {
let type_annotations = elts
.iter()
.map(|e| {
parse_ast_to_type_annotation_kinds(
resolver,
top_level_defs,
unifier,
primitives,
e,
locked.clone(),
)
})
.collect::<Result<Vec<_>, _>>()?;
Ok(TypeAnnotation::Tuple(type_annotations))
} else {
Err("Expect multiple elements for tuple".into())
}
}
// custom class
ast::ExprKind::Subscript { value, slice, .. } => {
if let ast::ExprKind::Name { id, .. } = &value.node {
let class_name_handle =
|id: &StrRef, slice: &ast::Expr<T>, unifier: &mut Unifier, mut locked: HashMap<DefinitionId, Vec<Type>>| {
if vec!["virtual".into(), "Generic".into(), "list".into(), "tuple".into()]
.contains(id)
{
@ -188,7 +123,7 @@ pub fn parse_ast_to_type_annotation_kinds<T>(
let params_ast = if let ast::ExprKind::Tuple { elts, .. } = &slice.node {
elts.iter().collect_vec()
} else {
vec![slice.as_ref()]
vec![slice]
};
if type_vars.len() != params_ast.len() {
return Err(format!(
@ -213,7 +148,6 @@ pub fn parse_ast_to_type_annotation_kinds<T>(
)
})
.collect::<Result<Vec<_>, _>>()?;
// make sure the result do not contain any type vars
let no_type_var = result
.iter()
@ -226,8 +160,83 @@ pub fn parse_ast_to_type_annotation_kinds<T>(
.into());
}
};
Ok(TypeAnnotation::CustomClass { id: obj_id, params: param_type_infos })
};
match &expr.node {
ast::ExprKind::Name { id, .. } => name_handle(id, unifier, locked),
ast::ExprKind::Constant { value: Str(id), .. } => name_handle(&id.clone().into(), unifier, locked),
// virtual
ast::ExprKind::Subscript { value, slice, .. }
if {
matches!(&value.node, ast::ExprKind::Name { id, .. } if id == &"virtual".into()) ||
matches!(&value.node, ast::ExprKind::Constant { value: Str(id), .. } if id == "virtual")
} =>
{
let def = parse_ast_to_type_annotation_kinds(
resolver,
top_level_defs,
unifier,
primitives,
slice.as_ref(),
locked,
)?;
if !matches!(def, TypeAnnotation::CustomClass { .. }) {
unreachable!("must be concretized custom class kind in the virtual")
}
Ok(TypeAnnotation::Virtual(def.into()))
}
// list
ast::ExprKind::Subscript { value, slice, .. }
if {
matches!(&value.node, ast::ExprKind::Name { id, .. } if id == &"list".into()) ||
matches!(&value.node, ast::ExprKind::Constant { value: Str(id), .. } if id == "list")
} =>
{
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()))
}
// tuple
ast::ExprKind::Subscript { value, slice, .. }
if {
matches!(&value.node, ast::ExprKind::Name { id, .. } if id == &"tuple".into()) ||
matches!(&value.node, ast::ExprKind::Constant { value: Str(id), .. } if id == "tuple")
} =>
{
if let ast::ExprKind::Tuple { elts, .. } = &slice.node {
let type_annotations = elts
.iter()
.map(|e| {
parse_ast_to_type_annotation_kinds(
resolver,
top_level_defs,
unifier,
primitives,
e,
locked.clone(),
)
})
.collect::<Result<Vec<_>, _>>()?;
Ok(TypeAnnotation::Tuple(type_annotations))
} else {
Err("Expect multiple elements for tuple".into())
}
}
// custom class
ast::ExprKind::Subscript { value, slice, .. } => {
if let ast::ExprKind::Name { id, .. } = &value.node {
class_name_handle(id, slice, unifier, locked)
} else if let ast::ExprKind::Constant { value: Str(id), .. } = &value.node {
class_name_handle(&id.clone().into(), slice, unifier, locked)
} else {
Err("unsupported expression type for class name".into())
}
@ -368,13 +377,7 @@ pub fn get_type_from_type_annotation_kinds(
/// But note that here we do not make a duplication of `T`, `V`, we direclty
/// use them as they are in the TopLevelDef::Class since those in the
/// TopLevelDef::Class.type_vars will be substitute later when seeing applications/instantiations
/// the Type of their fields and methods will also be subst when application/instantiation \
/// \
/// Note this implicit self type is different with seeing `A[T, V]` explicitly outside
/// the class def ast body, where it is a new instantiation of the generic class `A`,
/// but equivalent to seeing `A[T, V]` inside the class def body ast, where although we
/// create copies of `T` and `V`, we will find them out as occured type vars in the analyze_class()
/// and unify them with the class generic `T`, `V`
/// the Type of their fields and methods will also be subst when application/instantiation
pub fn make_self_type_annotation(type_vars: &[Type], object_id: DefinitionId) -> TypeAnnotation {
TypeAnnotation::CustomClass {
id: object_id,