forked from M-Labs/nac3
refactored top level parsing, need review
This commit is contained in:
parent
6ad953f877
commit
82ce816177
@ -15,10 +15,11 @@ pub enum SymbolValue {
|
||||
}
|
||||
|
||||
pub trait SymbolResolver {
|
||||
fn get_symbol_type(&mut self, str: &str) -> Option<Type>;
|
||||
fn parse_type_name(&mut self, expr: &Expr<()>) -> Option<Type>;
|
||||
fn get_function_def(&mut self, str: &str) -> DefinitionId;
|
||||
fn get_symbol_value(&mut self, str: &str) -> Option<SymbolValue>;
|
||||
fn get_symbol_location(&mut self, str: &str) -> Option<Location>;
|
||||
fn get_symbol_type(&self, str: &str) -> Option<Type>;
|
||||
fn parse_type_name(&self, expr: &Expr<()>) -> Option<Type>;
|
||||
fn get_identifier_def(&self, str: &str) -> DefinitionId;
|
||||
fn get_symbol_value(&self, str: &str) -> Option<SymbolValue>;
|
||||
fn get_symbol_location(&self, str: &str) -> Option<Location>;
|
||||
fn get_module_resolver(&self, module_name: &str) -> Option<&dyn SymbolResolver>; // NOTE: for getting imported modules' symbol resolver?
|
||||
// handle function call etc.
|
||||
}
|
||||
|
||||
@ -1,4 +1,3 @@
|
||||
use std::default;
|
||||
use std::{collections::HashMap, sync::Arc};
|
||||
|
||||
use super::typecheck::type_inferencer::PrimitiveStore;
|
||||
@ -45,6 +44,9 @@ pub enum TopLevelDef {
|
||||
/// rigid type variables that would be substituted when the function is instantiated.
|
||||
instance_to_stmt: HashMap<String, (Stmt<Option<Type>>, usize)>,
|
||||
},
|
||||
Initializer {
|
||||
class_id: Option<DefinitionId>,
|
||||
}
|
||||
}
|
||||
|
||||
pub struct CodeGenTask {
|
||||
@ -76,40 +78,46 @@ pub struct CodeGenContext<'ctx> {
|
||||
pub loop_bb: Option<(BasicBlock<'ctx>, BasicBlock<'ctx>)>,
|
||||
}
|
||||
|
||||
pub struct TopLevelManager<'a> {
|
||||
pub def_index: usize,
|
||||
pub ctx: TopLevelContext,
|
||||
pub resolver: &'a mut Box<dyn SymbolResolver>,
|
||||
pub primitives: (PrimitiveStore, Unifier)
|
||||
}
|
||||
|
||||
|
||||
use rustpython_parser::ast;
|
||||
impl<'a> TopLevelManager<'a> {
|
||||
pub struct TopLevelDefInfo<'a> { // like adding some info on top of the TopLevelDef for later parsing the class bases, method, and function sigatures
|
||||
def: TopLevelDef, // the definition entry
|
||||
ty: Type, // the entry in the top_level unifier
|
||||
ast: Option<ast::Stmt<()>>, // the ast submitted by applications
|
||||
resolver: Option<&'a dyn SymbolResolver> // the resolver
|
||||
}
|
||||
pub struct TopLevelComposer<'a> {
|
||||
pub definition_list: Vec<TopLevelDefInfo<'a>>,
|
||||
pub primitives: PrimitiveStore,
|
||||
pub unifier: Unifier,
|
||||
}
|
||||
|
||||
impl<'a> TopLevelComposer<'a> {
|
||||
pub fn make_primitives() -> (PrimitiveStore, Unifier) {
|
||||
let mut unifier = Unifier::new();
|
||||
let int32 = unifier.add_ty(TypeEnum::TObj {
|
||||
obj_id: DefinitionId(0), // NOTE: what should it be?
|
||||
obj_id: DefinitionId(0), // 0 should be fine
|
||||
fields: HashMap::new().into(),
|
||||
params: HashMap::new(),
|
||||
});
|
||||
let int64 = unifier.add_ty(TypeEnum::TObj {
|
||||
obj_id: DefinitionId(1), // NOTE: what should it be?
|
||||
obj_id: DefinitionId(1), // 0 should be fine
|
||||
fields: HashMap::new().into(),
|
||||
params: HashMap::new(),
|
||||
});
|
||||
let float = unifier.add_ty(TypeEnum::TObj {
|
||||
obj_id: DefinitionId(2), // NOTE: what should it be?
|
||||
obj_id: DefinitionId(2), // 0 should be fine
|
||||
fields: HashMap::new().into(),
|
||||
params: HashMap::new(),
|
||||
});
|
||||
let bool = unifier.add_ty(TypeEnum::TObj {
|
||||
obj_id: DefinitionId(3), // NOTE: what should it be?
|
||||
obj_id: DefinitionId(3), // 0 should be fine
|
||||
fields: HashMap::new().into(),
|
||||
params: HashMap::new(),
|
||||
});
|
||||
let none = unifier.add_ty(TypeEnum::TObj {
|
||||
obj_id: DefinitionId(4), // NOTE: what should it be?
|
||||
obj_id: DefinitionId(4), // 0 should be fine
|
||||
fields: HashMap::new().into(),
|
||||
params: HashMap::new(),
|
||||
});
|
||||
@ -117,90 +125,188 @@ impl<'a> TopLevelManager<'a> {
|
||||
crate::typecheck::magic_methods::set_primitives_magic_methods(&primitives, &mut unifier);
|
||||
(primitives, unifier)
|
||||
}
|
||||
|
||||
pub fn new(resolver: &'a mut Box<dyn SymbolResolver>) -> Self {
|
||||
TopLevelManager {
|
||||
def_index: 1,
|
||||
ctx: TopLevelContext {
|
||||
definitions: Default::default(),
|
||||
unifiers: Default::default()
|
||||
pub fn new() -> Self {
|
||||
let primitives = Self::make_primitives();
|
||||
let definition_list: Vec<TopLevelDefInfo<'a>> = vec![
|
||||
TopLevelDefInfo {
|
||||
def: Self::make_top_level_class_def(0),
|
||||
ast: None,
|
||||
resolver: None,
|
||||
ty: primitives.0.int32 // just arbitary picked one...
|
||||
},
|
||||
resolver,
|
||||
primitives: Self::make_primitives()
|
||||
TopLevelDefInfo {
|
||||
def: Self::make_top_level_class_def(1),
|
||||
ast: None,
|
||||
resolver: None,
|
||||
ty: primitives.0.int64 // just arbitary picked one...
|
||||
},
|
||||
TopLevelDefInfo {
|
||||
def: Self::make_top_level_class_def(2),
|
||||
ast: None,
|
||||
resolver: None,
|
||||
ty: primitives.0.float // just arbitary picked one...
|
||||
},
|
||||
TopLevelDefInfo {
|
||||
def: Self::make_top_level_class_def(3),
|
||||
ast: None,
|
||||
resolver: None,
|
||||
ty: primitives.0.bool // just arbitary picked one...
|
||||
},
|
||||
TopLevelDefInfo {
|
||||
def: Self::make_top_level_class_def(4),
|
||||
ast: None,
|
||||
resolver: None,
|
||||
ty: primitives.0.none // just arbitary picked one...
|
||||
},
|
||||
]; // the entries for primitive types
|
||||
TopLevelComposer {
|
||||
definition_list,
|
||||
primitives: primitives.0,
|
||||
unifier: primitives.1
|
||||
}
|
||||
}
|
||||
|
||||
pub fn register_top_level(&mut self, ast: &ast::Stmt<()>) -> Result<DefinitionId, String>{
|
||||
pub fn make_top_level_class_def(index: usize) -> TopLevelDef {
|
||||
TopLevelDef::Class {
|
||||
object_id: DefinitionId(index),
|
||||
type_vars: Default::default(),
|
||||
fields: Default::default(),
|
||||
methods: Default::default(),
|
||||
ancestors: Default::default(),
|
||||
}
|
||||
}
|
||||
pub fn make_top_level_function_def(name: String, ty: Type) -> TopLevelDef {
|
||||
TopLevelDef::Function {
|
||||
name,
|
||||
signature: ty,
|
||||
instance_to_symbol: Default::default(),
|
||||
instance_to_stmt: Default::default()
|
||||
}
|
||||
}
|
||||
|
||||
// like to make and return a "primitive" symbol resolver? so that the symbol resolver can later figure out primitive type definitions when passed a primitive type name
|
||||
pub fn get_primitives_definition(&self) -> Vec<(String, DefinitionId, Type)> {
|
||||
vec![
|
||||
("int32".into(), DefinitionId(0), self.primitives.int32),
|
||||
("int64".into(), DefinitionId(0), self.primitives.int32),
|
||||
("float".into(), DefinitionId(0), self.primitives.int32),
|
||||
("bool".into(), DefinitionId(0), self.primitives.int32),
|
||||
("none".into(), DefinitionId(0), self.primitives.int32),
|
||||
]
|
||||
}
|
||||
|
||||
pub fn register_top_level(&mut self, ast: ast::Stmt<()>, resolver: &'a dyn SymbolResolver) -> Result<Vec<(String, DefinitionId, Type)>, String> {
|
||||
match &ast.node {
|
||||
ast::StmtKind::ClassDef {
|
||||
name,
|
||||
bases,
|
||||
keywords,
|
||||
body,
|
||||
decorator_list
|
||||
} => {
|
||||
// ancestors and type_vars are found using the `bases` field
|
||||
let mut class_ancestors: Vec<DefinitionId> = Default::default();
|
||||
let mut class_type_vars: Vec<Type> = Default::default();
|
||||
for base in bases {
|
||||
match &base.node {
|
||||
ast::ExprKind::Subscript {value, slice, ..} => {
|
||||
match &value.node {
|
||||
ast::ExprKind::Name {id, ..} if id == "Generic" => {
|
||||
match &slice.node {
|
||||
ast::ExprKind::Tuple {elts, ..} => {
|
||||
for e in elts {
|
||||
class_type_vars.push(
|
||||
self.resolver.
|
||||
parse_type_name(e)
|
||||
.ok_or_else(|| "unkown base class type".to_string())?
|
||||
); // FIXME: is it correct to use this?
|
||||
}
|
||||
},
|
||||
_ => class_type_vars.push(
|
||||
self.resolver
|
||||
.parse_type_name(slice)
|
||||
.ok_or_else(|| "unkown base class type".to_string())?
|
||||
) // FIXME: is it correct to use this?
|
||||
}
|
||||
},
|
||||
_ => return Err("only subscription on keyword Generic is allowed".into())
|
||||
}
|
||||
},
|
||||
|
||||
ast::ExprKind::Name {id, ..} => {
|
||||
class_ancestors.push(self.resolver.get_function_def(id)) // FIXME: is it correct to use this?
|
||||
}
|
||||
|
||||
_ => return Err("unsupported expression in the bases list".into())
|
||||
ast::StmtKind::ClassDef {name, body, ..} => {
|
||||
let class_name = name.to_string();
|
||||
let def_id = self.definition_list.len();
|
||||
// add the class to the unifier
|
||||
let ty = self.unifier.add_ty(TypeEnum::TObj {
|
||||
obj_id: DefinitionId(def_id),
|
||||
fields: Default::default(),
|
||||
params: Default::default()
|
||||
});
|
||||
// add to the definition list
|
||||
self.definition_list.push(
|
||||
TopLevelDefInfo {
|
||||
def: Self::make_top_level_class_def(def_id),
|
||||
resolver: Some(resolver),
|
||||
ast: Some(ast),
|
||||
ty,
|
||||
}
|
||||
}
|
||||
);
|
||||
|
||||
// fields and methods are determined using the `body` field
|
||||
let class_fields: Vec<(String, Type)> = Default::default();
|
||||
let class_methods: Vec<(String, Type, DefinitionId)> = Default::default();
|
||||
for stmt in body {
|
||||
match &stmt.node {
|
||||
ast::StmtKind::FunctionDef {name, .. } if name != "__init__" => {
|
||||
let result = self.register_top_level(stmt)?;
|
||||
unimplemented!()
|
||||
},
|
||||
// TODO: parse class def body and register class methods into the def list?
|
||||
// FIXME: module's symbol resolver would not know the name of the class methods, thus cannot return their definition_id? so we have to manage it ourselves?
|
||||
// or do we return the class method list of (method_name, def_id, type) to application to be used to build symbol resolver? <- current implementation
|
||||
|
||||
_ => unimplemented!()
|
||||
}
|
||||
}
|
||||
|
||||
let defs = self.ctx.definitions.write();
|
||||
let index = defs.len();
|
||||
|
||||
unimplemented!()
|
||||
Ok(vec![(class_name, DefinitionId(def_id), ty)]) // FIXME: need to add class method def
|
||||
},
|
||||
|
||||
ast::StmtKind::FunctionDef {name, ..} => {
|
||||
unimplemented!()
|
||||
}
|
||||
let fun_name = name.to_string();
|
||||
let def_id = self.definition_list.len();
|
||||
// add to the unifier
|
||||
let ty = self.unifier.add_ty(TypeEnum::TFunc(crate::typecheck::typedef::FunSignature {
|
||||
args: Default::default(),
|
||||
ret: self.primitives.none, // NOTE: this needs to be changed later
|
||||
vars: Default::default()
|
||||
}));
|
||||
// add to the definition list
|
||||
self.definition_list.push(
|
||||
TopLevelDefInfo {
|
||||
def: Self::make_top_level_function_def(
|
||||
name.into(),
|
||||
self.primitives.none // NOTE: this needs to be changed later
|
||||
),
|
||||
resolver: Some(resolver),
|
||||
ast: Some(ast),
|
||||
ty,
|
||||
}
|
||||
);
|
||||
|
||||
_ => Err("only expect function definition and class definition".into())
|
||||
Ok(vec![(fun_name, DefinitionId(def_id), ty)])
|
||||
},
|
||||
|
||||
_ => Err("only registrations of top level classes/functions are supprted".into())
|
||||
}
|
||||
}
|
||||
|
||||
/// this should be called after all top level classes are registered, and will actually fill in those fields of the previous dummy one
|
||||
pub fn analyze_top_level(&mut self) -> Result<(), String> {
|
||||
for mut d in &mut self.definition_list {
|
||||
if let (Some(ast), Some(resolver)) = (&d.ast, d.resolver) {
|
||||
match &ast.node {
|
||||
ast::StmtKind::ClassDef {
|
||||
name,
|
||||
bases,
|
||||
body,
|
||||
..
|
||||
} => {
|
||||
// ancestors and typevars associate with the class are analyzed by looking into the `bases` ast node
|
||||
for b in bases {
|
||||
match &b.node {
|
||||
ast::ExprKind::Name {id, ..} => { // base class, name directly available inside the module, can use this module's symbol resolver
|
||||
let def_id = resolver.get_identifier_def(id);
|
||||
unimplemented!()
|
||||
},
|
||||
ast::ExprKind::Attribute {value, attr, ..} => { // things can be like `class A(BaseModule.Base)`, here we have to get the symbol resolver of the module `BaseModule`?
|
||||
unimplemented!() // need to change symbol resolver in order to get the symbol resolver of the imported module
|
||||
},
|
||||
ast::ExprKind::Subscript {value, slice, ..} => { // typevars bounded to the class, things like `class A(Generic[T, V])`
|
||||
if let ast::ExprKind::Name {id, ..} = &value.node {
|
||||
if id == "Generic" {
|
||||
// TODO: get typevars
|
||||
unimplemented!()
|
||||
} else {
|
||||
return Err("unknown type var".into())
|
||||
}
|
||||
}
|
||||
},
|
||||
_ => return Err("not supported".into())
|
||||
}
|
||||
}
|
||||
|
||||
// class method and field are analyzed by looking into the class body ast node
|
||||
for stmt in body {
|
||||
unimplemented!()
|
||||
}
|
||||
},
|
||||
|
||||
ast::StmtKind::FunctionDef {
|
||||
name,
|
||||
args,
|
||||
body,
|
||||
returns,
|
||||
..
|
||||
} => {
|
||||
unimplemented!()
|
||||
}
|
||||
|
||||
_ => return Err("only expect function and class definitions to be submitted here to be analyzed".into())
|
||||
}
|
||||
}
|
||||
};
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
@ -15,11 +15,11 @@ struct Resolver {
|
||||
}
|
||||
|
||||
impl SymbolResolver for Resolver {
|
||||
fn get_symbol_type(&mut self, str: &str) -> Option<Type> {
|
||||
fn get_symbol_type(&self, str: &str) -> Option<Type> {
|
||||
self.identifier_mapping.get(str).cloned()
|
||||
}
|
||||
|
||||
fn parse_type_name(&mut self, ty: &ast::Expr<()>) -> Option<Type> {
|
||||
fn parse_type_name(&self, ty: &ast::Expr<()>) -> Option<Type> {
|
||||
if let ExprKind::Name { id, .. } = &ty.node {
|
||||
self.class_names.get(id).cloned()
|
||||
} else {
|
||||
@ -27,15 +27,19 @@ impl SymbolResolver for Resolver {
|
||||
}
|
||||
}
|
||||
|
||||
fn get_symbol_value(&mut self, _: &str) -> Option<SymbolValue> {
|
||||
fn get_symbol_value(&self, _: &str) -> Option<SymbolValue> {
|
||||
unimplemented!()
|
||||
}
|
||||
|
||||
fn get_symbol_location(&mut self, _: &str) -> Option<Location> {
|
||||
fn get_symbol_location(&self, _: &str) -> Option<Location> {
|
||||
unimplemented!()
|
||||
}
|
||||
|
||||
fn get_function_def(&mut self, _: &str) -> DefinitionId {
|
||||
fn get_identifier_def(&self, _: &str) -> DefinitionId {
|
||||
unimplemented!()
|
||||
}
|
||||
|
||||
fn get_module_resolver(&self, _: &str) -> Option<&dyn SymbolResolver> {
|
||||
unimplemented!()
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user