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fix https://github.com/pocketpy/pocketpy/issues/196

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This commit is contained in:
blueloveTH 2024-02-04 17:53:31 +08:00
parent 703bacc7de
commit 7bd99279e5
6 changed files with 129 additions and 11 deletions
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2
amalgamate.py
View File

@ -9,7 +9,7 @@ pipeline = [
["config.h", "export.h", "common.h", "memory.h", "vector.h", "str.h", "tuplelist.h", "namedict.h", "error.h"],
["obj.h", "dict.h", "codeobject.h", "frame.h"],
["gc.h", "vm.h", "ceval.h", "lexer.h", "expr.h", "compiler.h", "repl.h"],
["_generated.h", "cffi.h", "bindings.h", "iter.h", "base64.h", "csv.h", "collections.h", "random.h", "linalg.h", "easing.h", "io.h", "modules.h"],
["_generated.h", "cffi.h", "bindings.h", "iter.h", "base64.h", "csv.h", "collections.h", "dataclasses.h", "random.h", "linalg.h", "easing.h", "io.h", "modules.h"],
["pocketpy.h", "pocketpy_c.h"]
]

9
include/pocketpy/dataclasses.h Normal file
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@ -0,0 +1,9 @@
#pragma once
#include "cffi.h"
namespace pkpy{
void add_module_dataclasses(VM* vm);
} // namespace pkpy

1
include/pocketpy/pocketpy.h
View File

@ -14,4 +14,5 @@
#include "bindings.h"
#include "collections.h"
#include "csv.h"
#include "dataclasses.h"
#include "modules.h"

1
src/compiler.cpp
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@ -944,7 +944,6 @@ __EAT_DOTS_END:
is_typed_name = true;
if(ctx()->is_compiling_class){
// add to __annotations__
NameExpr* ne = static_cast<NameExpr*>(ctx()->s_expr.top().get());
ctx()->emit_(OP_ADD_CLASS_ANNOTATION, ne->name.index, BC_KEEPLINE);
}

117
src/dataclasses.cpp Normal file
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@ -0,0 +1,117 @@
#include "pocketpy/dataclasses.h"
namespace pkpy{
static void patch__init__(VM* vm, Type cls){
vm->bind(vm->_t(cls), "__init__(self, *args, **kwargs)", [](VM* vm, ArgsView _view){
PyObject* self = _view[0];
const Tuple& args = CAST(Tuple&, _view[1]);
const Dict& kwargs_ = CAST(Dict&, _view[2]);
NameDict kwargs;
kwargs_.apply([&](PyObject* k, PyObject* v){
kwargs.set(CAST(Str&, k), v);
});
Type cls = vm->_tp(self);
const PyTypeInfo* cls_info = &vm->_all_types[cls];
NameDict& cls_d = cls_info->obj->attr();
const auto& fields = cls_info->annotated_fields;
int i = 0; // index into args
for(StrName field: fields){
if(kwargs.contains(field)){
self->attr().set(field, kwargs[field]);
kwargs.del(field);
}else{
if(i < args.size()){
self->attr().set(field, args[i]);
++i;
}else if(cls_d.contains(field)){ // has default value
self->attr().set(field, cls_d[field]);
}else{
vm->TypeError(_S(cls_info->name, " missing required argument ", field.escape()));
}
}
}
if(args.size() > i){
vm->TypeError(_S(cls_info->name, " takes ", fields.size(), " positional arguments but ", args.size(), " were given"));
}
if(kwargs.size() > 0){
StrName unexpected_key = kwargs.items()[0].first;
vm->TypeError(_S(cls_info->name, " got an unexpected keyword argument ", unexpected_key.escape()));
}
return vm->None;
});
}
static void patch__repr__(VM* vm, Type cls){
vm->bind__repr__(cls, [](VM* vm, PyObject* _0){
auto _lock = vm->heap.gc_scope_lock();
const PyTypeInfo* cls_info = &vm->_all_types[vm->_tp(_0)];
const auto& fields = cls_info->annotated_fields;
const NameDict& obj_d = _0->attr();
SStream ss;
ss << cls_info->name << "(";
bool first = true;
for(StrName field: fields){
if(first) first = false;
else ss << ", ";
ss << field << "=" << CAST(Str&, vm->py_repr(obj_d[field]));
}
ss << ")";
return VAR(ss.str());
});
}
static void patch__eq__(VM* vm, Type cls){
vm->bind__eq__(cls, [](VM* vm, PyObject* _0, PyObject* _1){
if(vm->_tp(_0) != vm->_tp(_1)) return vm->NotImplemented;
const PyTypeInfo* cls_info = &vm->_all_types[vm->_tp(_0)];
const auto& fields = cls_info->annotated_fields;
for(StrName field: fields){
PyObject* lhs = _0->attr(field);
PyObject* rhs = _1->attr(field);
if(vm->py_ne(lhs, rhs)) return vm->False;
}
return vm->True;
});
}
void add_module_dataclasses(VM* vm){
PyObject* mod = vm->new_module("dataclasses");
vm->bind_func<1>(mod, "dataclass", [](VM* vm, ArgsView args){
vm->check_non_tagged_type(args[0], VM::tp_type);
Type cls = PK_OBJ_GET(Type, args[0]);
NameDict& cls_d = args[0]->attr();
if(!cls_d.contains("__init__")) patch__init__(vm, cls);
if(!cls_d.contains("__repr__")) patch__repr__(vm, cls);
if(!cls_d.contains("__eq__")) patch__eq__(vm, cls);
const auto& fields = vm->_all_types[cls].annotated_fields;
bool has_default = false;
for(StrName field: fields){
if(cls_d.contains(field)){
has_default = true;
}else{
if(has_default){
vm->TypeError(_S("non-default argument ", field.escape(), " follows default argument"));
}
}
}
return args[0];
});
vm->bind_func<1>(mod, "asdict", [](VM* vm, ArgsView args){
const auto& fields = vm->_inst_type_info(args[0])->annotated_fields;
const NameDict& obj_d = args[0]->attr();
Dict d(vm);
for(StrName field: fields){
d.set(VAR(field.sv()), obj_d[field]);
}
return VAR(std::move(d));
});
}
} // namespace pkpy

10
src/pocketpy.cpp
View File

@ -1380,15 +1380,6 @@ void VM::post_init(){
return self; // for generics
});
bind_property(_t(tp_type), "__annotations__", [](VM* vm, ArgsView args){
const PyTypeInfo* ti = &vm->_all_types[(PK_OBJ_GET(Type, args[0]))];
Tuple t(ti->annotated_fields.size());
for(int i=0; i<ti->annotated_fields.size(); i++){
t[i] = VAR(ti->annotated_fields[i].sv());
}
return VAR(std::move(t));
});
bind__repr__(tp_type, [](VM* vm, PyObject* self){
SStream ss;
const PyTypeInfo& info = vm->_all_types[PK_OBJ_GET(Type, self)];
@ -1451,6 +1442,7 @@ void VM::post_init(){
add_module_base64(this);
add_module_operator(this);
add_module_csv(this);
add_module_dataclasses(this);
for(const char* name: {"this", "functools", "heapq", "bisect", "pickle", "_long", "colorsys", "typing", "datetime", "dataclasses", "cmath"}){
_lazy_modules[name] = kPythonLibs[name];