forked from M-Labs/nac3
top level parse class base/generic
This commit is contained in:
parent
e176aa660d
commit
ba5bb78f11
@ -1,9 +1,11 @@
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use std::borrow::Borrow;
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use std::borrow::{Borrow, BorrowMut};
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use std::collections::HashSet;
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use std::{collections::HashMap, sync::Arc};
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use super::typecheck::type_inferencer::PrimitiveStore;
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use super::typecheck::typedef::{SharedUnifier, Type, TypeEnum, Unifier};
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use crate::symbol_resolver::SymbolResolver;
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use crate::typecheck::typedef::{FunSignature, FuncArg};
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use inkwell::context::Context;
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use parking_lot::{Mutex, RwLock};
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use rustpython_parser::ast::{self, Stmt};
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@ -57,30 +59,31 @@ pub struct TopLevelContext {
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pub conetexts: Arc<RwLock<Vec<Mutex<Context>>>>,
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}
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// like adding some info on top of the TopLevelDef for
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// later parsing the class bases, method, and function sigatures
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pub struct TopLevelDefInfo {
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// the definition entry
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def: TopLevelDef,
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// the entry in the top_level unifier
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ty: Type,
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// the ast submitted by applications, primitives and
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// class methods will have None value here
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ast: Option<ast::Stmt<()>>,
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}
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pub struct TopLevelComposer {
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// list of top level definitions and their info
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pub definition_list: RwLock<Vec<TopLevelDefInfo>>,
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// list of top level definitions, same as top level context
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pub definition_list: Arc<RwLock<Vec<RwLock<TopLevelDef>>>>,
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// list of top level Type, the index is same as the field `definition_list`
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pub ty_list: RwLock<Vec<Type>>,
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// list of top level ast, the index is same as the field `definition_list` and `ty_list`
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pub ast_list: RwLock<Vec<Option<ast::Stmt<()>>>>,
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// start as a primitive unifier, will add more top_level defs inside
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pub unifier: RwLock<Unifier>,
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// primitive store
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pub primitives: PrimitiveStore,
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// start as a primitive unifier, will add more top_level defs inside
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pub unifier: Unifier,
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// mangled class method name to def_id
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pub class_method_to_def_id: HashMap<String, DefinitionId>,
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pub class_method_to_def_id: RwLock<HashMap<String, DefinitionId>>,
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}
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impl TopLevelComposer {
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pub fn to_top_level_context(&self) -> TopLevelContext {
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TopLevelContext {
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definitions: self.definition_list.clone(),
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// FIXME: all the big unifier or?
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unifiers: Default::default(),
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conetexts: Default::default(),
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}
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}
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fn name_mangling(mut class_name: String, method_name: &str) -> String {
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class_name.push_str(method_name);
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class_name
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@ -122,47 +125,43 @@ impl TopLevelComposer {
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/// resolver can later figure out primitive type definitions when passed a primitive type name
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pub fn new() -> (Vec<(String, DefinitionId, Type)>, Self) {
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let primitives = Self::make_primitives();
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// the def list including the entries of primitive info
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let definition_list: Vec<TopLevelDefInfo> = vec![
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TopLevelDefInfo {
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def: Self::make_top_level_class_def(0, None),
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ast: None,
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ty: primitives.0.int32,
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},
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TopLevelDefInfo {
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def: Self::make_top_level_class_def(1, None),
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ast: None,
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ty: primitives.0.int64,
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},
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TopLevelDefInfo {
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def: Self::make_top_level_class_def(2, None),
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ast: None,
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ty: primitives.0.float,
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},
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TopLevelDefInfo {
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def: Self::make_top_level_class_def(3, None),
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ast: None,
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ty: primitives.0.bool,
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},
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TopLevelDefInfo {
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def: Self::make_top_level_class_def(4, None),
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ast: None,
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ty: primitives.0.none,
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},
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let top_level_def_list = vec![
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RwLock::new(Self::make_top_level_class_def(0, None)),
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RwLock::new(Self::make_top_level_class_def(1, None)),
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RwLock::new(Self::make_top_level_class_def(2, None)),
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RwLock::new(Self::make_top_level_class_def(3, None)),
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RwLock::new(Self::make_top_level_class_def(4, None)),
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];
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let ast_list: Vec<Option<ast::Stmt<()>>> = vec![None, None, None, None, None];
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let ty_list: Vec<Type> = vec![
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primitives.0.int32,
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primitives.0.int64,
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primitives.0.float,
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primitives.0.bool,
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primitives.0.none,
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];
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let composer = TopLevelComposer {
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definition_list: definition_list.into(),
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definition_list: RwLock::new(top_level_def_list).into(),
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ty_list: RwLock::new(ty_list),
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ast_list: RwLock::new(ast_list),
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primitives: primitives.0,
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unifier: primitives.1,
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unifier: primitives.1.into(),
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class_method_to_def_id: Default::default(),
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};
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(vec![
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(
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vec![
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("int32".into(), DefinitionId(0), composer.primitives.int32),
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("int64".into(), DefinitionId(1), composer.primitives.int64),
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("float".into(), DefinitionId(2), composer.primitives.float),
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("bool".into(), DefinitionId(3), composer.primitives.bool),
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("none".into(), DefinitionId(4), composer.primitives.none),
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], composer)
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],
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composer,
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)
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}
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/// already include the definition_id of itself inside the ancestors vector
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@ -202,23 +201,30 @@ impl TopLevelComposer {
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match &ast.node {
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ast::StmtKind::ClassDef { name, body, .. } => {
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let class_name = name.to_string();
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let mut def_list = self.definition_list.write();
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let (mut def_list, mut ty_list, mut ast_list) =
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(self.definition_list.write(), self.ty_list.write(), self.ast_list.write());
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// will be deleted after tested
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assert_eq!(ty_list.len(), def_list.len());
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assert_eq!(def_list.len(), ast_list.len());
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let class_def_id = def_list.len();
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// add the class to the unifier
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let ty = self.unifier.add_ty(TypeEnum::TObj {
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let ty = self.unifier.write().add_ty(TypeEnum::TObj {
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obj_id: DefinitionId(class_def_id),
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fields: Default::default(),
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params: Default::default(),
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});
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// add the class to the definition list
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def_list.push(TopLevelDefInfo {
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def: Self::make_top_level_class_def(class_def_id, resolver.clone()),
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// NOTE: Temporarily none here since function body need to be read later
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ast: None,
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ty,
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});
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// add the class to the definition lists
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def_list
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.push(Self::make_top_level_class_def(class_def_id, resolver.clone()).into());
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ty_list.push(ty);
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// since later when registering class method, ast will still be used,
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// here push None temporarly, later will push the ast
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ast_list.push(None);
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// parse class def body and register class methods into the def list
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// module's symbol resolver would not know the name of the class methods,
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@ -230,7 +236,7 @@ impl TopLevelComposer {
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let def_id = def_list.len();
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// add to unifier
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let ty = self.unifier.add_ty(TypeEnum::TFunc(
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let ty = self.unifier.write().add_ty(TypeEnum::TFunc(
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crate::typecheck::typedef::FunSignature {
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args: Default::default(),
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ret: self.primitives.none,
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@ -239,60 +245,66 @@ impl TopLevelComposer {
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));
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// add to the definition list
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def_list.push(TopLevelDefInfo {
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def: Self::make_top_level_function_def(fun_name.clone(), ty, resolver.clone()),
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def_list.push(
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Self::make_top_level_function_def(
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fun_name.clone(),
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ty,
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// since it is inside the class def body statments, the ast is None
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ast: None,
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});
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resolver.clone(),
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)
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.into(),
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);
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ty_list.push(ty);
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// the ast of class method is in the class, push None in to the list here
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ast_list.push(None);
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// class method, do not let the symbol manager manage it, use our own map
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self.class_method_to_def_id.insert(fun_name, DefinitionId(def_id));
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self.class_method_to_def_id.write().insert(fun_name, DefinitionId(def_id));
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// if it is the contructor, special handling is needed. In the above
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// handling, we still add __init__ function to the class method
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if name == "__init__" {
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// FIXME: how can this later be fetched?
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def_list.push(TopLevelDefInfo {
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def: TopLevelDef::Initializer { class_id: DefinitionId(class_def_id) },
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// arbitary picked one for the constructor
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ty: self.primitives.none,
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// it is inside the class def body statments, so None
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ast: None,
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})
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// NOTE: how can this later be fetched?
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def_list.push(
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TopLevelDef::Initializer { class_id: DefinitionId(class_def_id) }
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.into(),
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);
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// arbitarily push one to make sure the index is correct
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ty_list.push(self.primitives.none);
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ast_list.push(None);
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}
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}
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}
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// move the ast to the entry of the class in the def_list
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def_list.get_mut(class_def_id).unwrap().ast = Some(ast);
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// move the ast to the entry of the class in the ast_list
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ast_list[class_def_id] = Some(ast);
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// return
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Ok((class_name, DefinitionId(class_def_id), ty))
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},
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}
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ast::StmtKind::FunctionDef { name, .. } => {
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let fun_name = name.to_string();
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// add to the unifier
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let ty = self.unifier.add_ty(TypeEnum::TFunc(crate::typecheck::typedef::FunSignature {
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let ty = self.unifier.write().add_ty(TypeEnum::TFunc(
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crate::typecheck::typedef::FunSignature {
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args: Default::default(),
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ret: self.primitives.none,
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vars: Default::default(),
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}));
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},
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));
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let (mut def_list, mut ty_list, mut ast_list) =
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(self.definition_list.write(), self.ty_list.write(), self.ast_list.write());
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// add to the definition list
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let mut def_list = self.definition_list.write();
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def_list.push(TopLevelDefInfo {
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def: Self::make_top_level_function_def(
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name.into(),
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self.primitives.none,
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resolver,
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),
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ast: Some(ast),
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ty,
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});
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def_list.push(
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Self::make_top_level_function_def(name.into(), self.primitives.none, resolver)
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.into(),
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);
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ty_list.push(ty);
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ast_list.push(Some(ast));
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// return
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Ok((fun_name, DefinitionId(def_list.len() - 1), ty))
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}
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@ -300,23 +312,36 @@ impl TopLevelComposer {
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}
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}
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/// this should be called after all top level classes are registered, and will actually fill in those fields of the previous dummy one
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/// this should be called after all top level classes are registered, and
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/// will actually fill in those fields of the previous dummy one
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pub fn analyze_top_level(&mut self) -> Result<(), String> {
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for d in self.definition_list.write().iter_mut() {
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// only analyze those with ast, and class_method(ast in class def)
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if let Some(ast) = &d.ast {
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match &ast.node {
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ast::StmtKind::ClassDef {
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let mut def_list = self.definition_list.write();
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let ty_list = self.ty_list.read();
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let ast_list = self.ast_list.read();
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let mut unifier = self.unifier.write();
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for (def, ty, ast) in def_list
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.iter_mut()
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.zip(ty_list.iter())
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.zip(ast_list.iter())
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.map(|((x, y), z)| (x, y, z))
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.collect::<Vec<(&mut RwLock<TopLevelDef>, &Type, &Option<ast::Stmt<()>>)>>()
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{
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// only analyze those entries with ast, and class_method(whose ast in class def)
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match ast {
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Some(ast::Located{node: ast::StmtKind::ClassDef {
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bases,
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body,
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name: class_name,
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..
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} => {
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// get the mutable reference of the entry in the definition list, get the `TopLevelDef`
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}, .. }) => {
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// get the mutable reference of the entry in the
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// definition list, get the `TopLevelDef`
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let (
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ancestors,
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fields,
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methods,
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type_vars,
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def_ancestors,
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def_fields,
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def_methods,
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def_type_vars,
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resolver,
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) = if let TopLevelDef::Class {
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object_id: _,
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@ -325,85 +350,145 @@ impl TopLevelComposer {
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methods,
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type_vars,
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resolver: Some(resolver)
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} = &mut d.def {
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} = def.get_mut() {
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(ancestors, fields, methods, type_vars, resolver.lock())
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} else { unreachable!() };
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// try to get mutable reference of the entry in the unification table, get the `TypeEnum`
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let (params,
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fields
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// try to get mutable reference of the entry in the
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// unification table, get the `TypeEnum`
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let type_enum = unifier.get_ty(*ty);
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let (
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enum_params,
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enum_fields
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) = if let TypeEnum::TObj {
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params,
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fields,
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..
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} = self.unifier.get_ty(d.ty).borrow() {
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} = type_enum.borrow() {
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(params, fields)
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} else { unreachable!() };
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// ancestors and typevars associate with the class are analyzed by looking
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// into the `bases` ast node
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// `Generic` should only occur once, use this flag
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let mut generic_occured = false;
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// TODO: haven't check this yet
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let mut occured_type_var: HashSet<Type> = Default::default();
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// TODO: haven't check this yet
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let mut occured_base: HashSet<DefinitionId> = Default::default();
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for b in bases {
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match &b.node {
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// typevars bounded to the class, only support things like `class A(Generic[T, V])`,
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// analyze typevars bounded to the class,
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// only support things like `class A(Generic[T, V])`,
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// things like `class A(Generic[T, V, ImportedModule.T])` is not supported
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// i.e. only simple names are allowed in the subscript
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// should update the TopLevelDef::Class.typevars and the TypeEnum::TObj.params
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ast::ExprKind::Subscript {value, slice, ..} if {
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if let ast::ExprKind::Name {id, ..} = &value.node {
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id == "Generic"
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// can only be `Generic[...]` and this can only appear once
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if let ast::ExprKind::Name { id, .. } = &value.node {
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if id == "Generic" {
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if !generic_occured {
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generic_occured = true;
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true
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} else {
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return Err("Only single Generic[...] or Protocol[...] can be in bases".into())
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}
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} else { false }
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} else { false }
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} => {
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match &slice.node {
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// `class Foo(Generic[T, V, P]):`
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// `class Foo(Generic[T, V, P]):` multiple element inside the subscript
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ast::ExprKind::Tuple {elts, ..} => {
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for e in elts {
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// let ty_def_id = resolver.
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let tys = elts
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.iter()
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.map(|x| {resolver.parse_type_annotation(
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&self.to_top_level_context(),
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unifier.borrow_mut(),
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&self.primitives,
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x)})
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.collect::<Result<Vec<_>, _>>()?;
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let ty_var_ids = tys
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.iter()
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.map(|t| unifier.get_ty(*t))
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.collect::<Vec<_>>()
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.iter()
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.map(|x| {
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let x = x.as_ref();
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if let TypeEnum::TVar {id, ..} = x {
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Ok(*id)
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} else {
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Err("Expect type variabls here".to_string())
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}
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})
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.collect::<Result<Vec<_>, _>>()?;
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// write to TypeEnum
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for (id, ty) in ty_var_ids.iter().zip(tys.iter()) {
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enum_params.borrow_mut().insert(*id, *ty);
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}
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// write to TopLevelDef
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for ty in tys{
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def_type_vars.push(ty)
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}
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},
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// `class Foo(Generic[T]):`
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ast::ExprKind::Name {id, ..} => {
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// the def_list
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// type_vars.push(resolver.get_symbol_type(id).ok_or_else(|| "unknown type variable".to_string())?); FIXME:
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unimplemented!()
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},
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// `class Foo(Generic[T]):`, only single element
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_ => {
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let ty = resolver.parse_type_annotation(
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&self.to_top_level_context(),
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unifier.borrow_mut(),
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&self.primitives,
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&slice
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)?;
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_ => return Err("not supported, only simple names are allowed in the subscript".into())
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let ty_var_id = if let TypeEnum::TVar { id, .. } = unifier
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.get_ty(ty)
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.as_ref() { *id } else {
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||||
return Err("Expect type variabls here".to_string())
|
||||
};
|
||||
|
||||
// write to TypeEnum
|
||||
enum_params.borrow_mut().insert(ty_var_id, ty);
|
||||
|
||||
// write to TopLevelDef
|
||||
def_type_vars.push(ty);
|
||||
},
|
||||
};
|
||||
}
|
||||
|
||||
/* // base class, name directly available inside the
|
||||
// module, can use this module's symbol resolver
|
||||
ast::ExprKind::Name {id, ..} => {
|
||||
// let def_id = resolver.get_identifier_def(id); FIXME:
|
||||
// the definition list
|
||||
// ancestors.push(def_id);
|
||||
},
|
||||
// analyze base classes, which is possible in
|
||||
// other cases, we parse for the base class
|
||||
_ => {
|
||||
let ty = resolver.parse_type_annotation(
|
||||
&self.to_top_level_context(),
|
||||
unifier.borrow_mut(),
|
||||
&self.primitives,
|
||||
b
|
||||
)?;
|
||||
|
||||
// base class, things can be like `class A(BaseModule.Base)`, here we have to get the
|
||||
// symbol resolver of the module `BaseModule`?
|
||||
ast::ExprKind::Attribute {value, attr, ..} => {
|
||||
if let ast::ExprKind::Name {id, ..} = &value.node {
|
||||
// if let Some(base_module_resolver) = resolver.get_module_resolver(id) {
|
||||
// let def_id = base_module_resolver.get_identifier_def(attr);
|
||||
// // the definition list
|
||||
// ancestors.push(def_id);
|
||||
// } else { return Err("unkown imported module".into()) } FIXME:
|
||||
} else { return Err("unkown imported module".into()) }
|
||||
},
|
||||
let obj_def_id = if let TypeEnum::TObj { obj_id, .. } = unifier
|
||||
.get_ty(ty)
|
||||
.as_ref() {
|
||||
*obj_id
|
||||
} else {
|
||||
return Err("Expect concrete classes/types here".into())
|
||||
};
|
||||
|
||||
// `class Foo(ImportedModule.A[int, bool])`, A is a class with associated type variables
|
||||
ast::ExprKind::Subscript {value, slice, ..} => {
|
||||
unimplemented!()
|
||||
}, */
|
||||
|
||||
// base class is possible in other cases, we parse for thr base class
|
||||
_ => return Err("not supported".into())
|
||||
// write to TopLevelDef
|
||||
def_ancestors.push(obj_def_id);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// class method and field are analyzed by
|
||||
// looking into the class body ast node
|
||||
// NOTE: should consider parents' method and fields(check re-def and add),
|
||||
// but we do it later we go over these again after we finish analyze the
|
||||
// fields/methods as declared in the ast
|
||||
// method with same name should not occur twice, so use this
|
||||
let defined_method: HashSet<String> = Default::default();
|
||||
for stmt in body {
|
||||
if let ast::StmtKind::FunctionDef {
|
||||
name,
|
||||
@ -412,32 +497,84 @@ impl TopLevelComposer {
|
||||
returns,
|
||||
..
|
||||
} = &stmt.node {
|
||||
// build type enum, need FunSignature {args, vars, ret}
|
||||
// args. Now only args with no default TODO: other kinds of args
|
||||
let func_args = args.args
|
||||
.iter()
|
||||
.map(|x| -> Result<FuncArg, String> {
|
||||
Ok(FuncArg {
|
||||
name: x.node.arg.clone(),
|
||||
ty: resolver.parse_type_annotation(
|
||||
&self.to_top_level_context(),
|
||||
unifier.borrow_mut(),
|
||||
&self.primitives,
|
||||
x
|
||||
.node
|
||||
.annotation
|
||||
.as_ref()
|
||||
.ok_or_else(|| "type annotations required for function parameters".to_string())?
|
||||
)?,
|
||||
default_value: None
|
||||
})
|
||||
})
|
||||
.collect::<Result<Vec<FuncArg>, _>>()?;
|
||||
// vars. find TypeVars used in the argument type annotation
|
||||
let func_vars = func_args
|
||||
.iter()
|
||||
.filter_map(|FuncArg { ty, .. } | {
|
||||
if let TypeEnum::TVar { id, .. } = unifier.get_ty(*ty).as_ref() {
|
||||
Some((*id, *ty))
|
||||
} else { None }
|
||||
})
|
||||
.collect::<HashMap<u32, Type>>();
|
||||
// return type
|
||||
let func_ret = resolver
|
||||
.parse_type_annotation(
|
||||
&self.to_top_level_context(),
|
||||
unifier.borrow_mut(),
|
||||
&self.primitives,
|
||||
returns
|
||||
.as_ref()
|
||||
.ok_or_else(|| "return type annotations required here".to_string())?
|
||||
.as_ref(),
|
||||
)?;
|
||||
// build the TypeEnum
|
||||
let func_ty = TypeEnum::TFunc(FunSignature {
|
||||
args: func_args,
|
||||
vars: func_vars,
|
||||
ret: func_ret
|
||||
});
|
||||
// TODO: write to the TypeEnum and Def_list
|
||||
|
||||
} else { }
|
||||
|
||||
|
||||
if name == "__init__" {
|
||||
// special for constructor, need to look into the fields
|
||||
// TODO: look into the function body and see
|
||||
}
|
||||
} else {
|
||||
// do nothing. we do not care about things like this?
|
||||
// class A:
|
||||
// a = 3
|
||||
// b = [2, 3]
|
||||
|
||||
|
||||
}
|
||||
}
|
||||
},
|
||||
|
||||
// top level function definition
|
||||
ast::StmtKind::FunctionDef {
|
||||
Some(ast::Located{node: ast::StmtKind::FunctionDef {
|
||||
name,
|
||||
args,
|
||||
body,
|
||||
returns,
|
||||
..
|
||||
} => {
|
||||
}, .. }) => {
|
||||
// TODO:
|
||||
unimplemented!()
|
||||
}
|
||||
|
||||
node => {
|
||||
return Err("only expect function and class definitions to be submitted here to be analyzed".into())
|
||||
}
|
||||
}
|
||||
// only expect class def and function def ast
|
||||
_ => return Err("only expect function and class definitions to be submitted here to be analyzed".into())
|
||||
}
|
||||
}
|
||||
Ok(())
|
||||
|
||||
Loading…
Reference in New Issue
Block a user