832 lines
33 KiB
Python
832 lines
33 KiB
Python
from __future__ import annotations
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from typing import TYPE_CHECKING, List, Any
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if TYPE_CHECKING:
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from lib.core.translator import Translator
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from lib.core.LlvmCodeGenerator import LlvmCodeGenerator
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import ast
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from enum import IntFlag, auto
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from llvmlite import ir as _ir
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from lib.constants import config as _config
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from lib.includes import t
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from lib.includes.t import CTypeRegistry
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from lib.core.TypeSpec import TypeSpec, SymbolMeta, FIELD_ROUTES
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from lib.core.VLogger import get_logger as _vlog
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EXCEPTION_CODE_MAP: dict[str, int] = {
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'ValueError': 1, 'TypeError': 2, 'RuntimeError': 3,
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'ZeroDivisionError': 4, 'IndexError': 5, 'KeyError': 6,
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'IOError': 7, 'OSError': 8, 'AssertionError': 9, 'Exception': 99,
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}
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class FuncMeta(IntFlag):
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NONE = 0
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STATIC_METHOD = auto()
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PROPERTY_GETTER = auto()
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PROPERTY_SETTER = auto()
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PROPERTY_DELETER = auto()
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CLASS_METHOD = auto()
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ABSTRACT = auto()
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class _Delegated:
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"""CTypeInfo 旧字段名委托描述符 — 静态委托到 _ts/_sm 的字段
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替代旧的 FIELD_ROUTES + __setattr__/__getattr__ 动态路由：
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描述符在类创建时绑定，访问时直接走 __get__/__set__，
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无 dict 查找和字符串比较的运行时开销。
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"""
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__slots__ = ('_target_attr', '_field_name')
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def __init__(self, target_attr: str, field_name: str) -> None:
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self._target_attr: str = target_attr # '_ts' or '_sm'
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self._field_name: str = field_name
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def __get__(self, obj: Any, objtype: type | None = None) -> Any:
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if obj is None:
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return self
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target: Any = object.__getattribute__(obj, self._target_attr)
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return getattr(target, self._field_name)
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def __set__(self, obj: Any, value: Any) -> None:
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target: Any = object.__getattribute__(obj, self._target_attr)
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setattr(target, self._field_name, value)
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class CTypeInfo:
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"""
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C 类型信息对象 - 统一符号表条目和类型计算
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设计原则:
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- BaseType 是 CType 实例（来自 t 模块），永远不使用硬编码字符串
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- 描述符分为两种:
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- VarConst/VarVolatile: 变量本身（指针）的限定符，如 int * const
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- DataConst/DataVolatile: 指向数据的限定符，如 const int *
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属性（类型计算）:
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- BaseType: t.CType - 基础类型实例 (如 t.CInt(), t.CVoid())
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- PtrCount: int - 指针层数
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- VarConst: bool - 变量本身（指针）是否 const，如 int * const
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- VarVolatile: bool - 变量本身（指针）是否 volatile
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- DataConst: bool - 指向的数据是否 const，如 const int *
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- DataVolatile: bool - 指向的数据是否 volatile
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- ArrayDims: List[str] - 数组维度
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- Storage: t.CType - 存储类 (static, extern 等)
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- IsFuncPtr: bool - 是否函数指针
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- FuncPtrParams: List[Tuple[str, CTypeInfo]] - 函数指针参数列表，每个元素是 (参数名, 参数类型)
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- FuncPtrReturn: CTypeInfo - 函数指针返回类型
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- IsBitField: bool - 是否位域
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- BitWidth: int - 位域宽度
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- IsTypedef/IsStruct/IsEnum/IsUnion: bool - 类型种类
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属性（符号表元数据）:
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- Name: str - 名称（struct/enum/union/typedef 名）
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- Members: Dict[str, CTypeInfo] - 成员字典（用于 struct/union）
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- OriginalType: str - typedef 的原始类型
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- DeclaredType: str - 声明类型
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- CreturnTypes: list - C 返回类型列表
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- Lineno: int - 定义行号
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- IsAnonymous: bool - 是否匿名类型
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- IsCpythonObject: bool - 是否 CPython 对象
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- IsEnumMember: bool - 是否枚举成员
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"""
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def __init__(self) -> None:
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object.__setattr__(self, '_ts', TypeSpec())
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sm: SymbolMeta = SymbolMeta()
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sm.meta_list = FuncMeta.NONE
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object.__setattr__(self, '_sm', sm)
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# --- 新公共 API：供新代码直接访问 TypeSpec / SymbolMeta / SymbolKind ---
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@property
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def ts(self) -> TypeSpec:
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"""TypeSpec — 纯类型描述（只读）"""
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return self._ts
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@property
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def sm(self) -> SymbolMeta:
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"""SymbolMeta — 符号表元数据（只读）"""
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return self._sm
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@property
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def kind(self) -> 'SymbolKind':
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"""SymbolKind — 符号类型种类枚举"""
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return self._sm.kind
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# 注：旧字段名（PtrCount/IsStruct/Name 等）的委托通过 _Delegated 描述符实现，
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# 在模块末尾从 FIELD_ROUTES 静态绑定，无需 __setattr__/__getattr__ 动态路由
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@property
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def BaseType(self) -> t.CType | tuple | None:
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return self._ts._base_type
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@BaseType.setter
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def BaseType(self, value: t.CType | type | tuple | List | None) -> None:
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"""设置 BaseType，接受以下类型：
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- None: 清空
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- t.CType 实例: 单个类型，自动设置 IsStruct/IsEnum/IsUnion 标志
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- type (CType 子类): 如 t.CStruct，自动实例化
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- tuple/list of t.CType: 多个组合类型
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"""
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ts: TypeSpec = self._ts
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sm: SymbolMeta = self._sm
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if value is None:
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ts._base_type = None
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sm.is_struct = False
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sm.is_enum = False
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sm.is_union = False
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sm.is_renum = False
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return
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if isinstance(value, (tuple, list)):
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ts._base_type = tuple(value)
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for v in value:
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if isinstance(v, t.CStruct):
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sm.is_struct = True
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elif isinstance(v, t.CEnum):
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sm.is_enum = True
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elif isinstance(v, t.CUnion):
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sm.is_union = True
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elif isinstance(v, t.REnum):
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sm.is_renum = True
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sm.is_enum = True
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return
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if isinstance(value, type) and issubclass(value, t.CType):
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ts._base_type = value()
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return
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if isinstance(value, t.CType):
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ts._base_type = value
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if isinstance(value, t.CStruct):
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sm.is_struct = True
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sm.is_enum = False
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sm.is_union = False
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sm.is_renum = False
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elif isinstance(value, t.REnum):
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sm.is_renum = True
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sm.is_enum = True
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sm.is_struct = False
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sm.is_union = False
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elif isinstance(value, t.CEnum):
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sm.is_enum = True
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sm.is_struct = False
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sm.is_union = False
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sm.is_renum = False
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elif isinstance(value, t.CUnion):
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sm.is_union = True
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sm.is_struct = False
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sm.is_enum = False
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sm.is_renum = False
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return
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raise TypeError(f"BaseType must be t.CType instance, type subclass, or tuple of t.CType, got {type(value)}")
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@property
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def TypeCls(self) -> type | None:
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"""获取 CType 类（从 BaseType 推断）"""
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bt: t.CType | tuple | None = self._ts._base_type
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if bt:
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return type(bt)
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sm: SymbolMeta = self._sm
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if sm.is_struct:
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return t.CStruct
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if sm.is_enum:
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return t.CEnum
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if sm.is_union:
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return t.CUnion
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if sm.is_typedef:
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return t._CTypedef
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return None
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@property
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def IsPtr(self) -> bool:
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return self._ts.ptr_count > 0
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@property
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def IsVoid(self) -> bool:
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return isinstance(self._ts._base_type, t.CVoid)
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@property
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def IsStr(self) -> bool:
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return isinstance(self._ts._base_type, t.CChar) and self._ts.ptr_count > 0
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@property
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def IsInt(self) -> bool:
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bt: t.CType | tuple | None = self._ts._base_type
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return isinstance(bt, t.CType) and getattr(bt, 'IsSigned', None) is not None and bt.IsSigned is True and not isinstance(bt, t.CVoid)
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@property
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def IsUInt(self) -> bool:
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bt: t.CType | tuple | None = self._ts._base_type
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return isinstance(bt, t.CType) and getattr(bt, 'IsSigned', None) is False
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@property
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def IsFloat(self) -> bool:
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bt: t.CType | tuple | None = self._ts._base_type
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return isinstance(bt, t.CType) and getattr(bt, 'IsSigned', None) is None and getattr(bt, 'Size', 0) in (32, 64, 128) and not isinstance(bt, t.CVoid)
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def ToString(self) -> str:
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ts: TypeSpec = self._ts
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sm: SymbolMeta = self._sm
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bt: t.CType | tuple | None = ts._base_type
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if ts.is_func_ptr:
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return 'Callable'
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parts: list[str] = []
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if ts.storage and not isinstance(ts.storage, t.CExport):
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parts.append(type(ts.storage).__name__)
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if ts.data_const or ts.data_volatile:
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qualifiers: list[str] = []
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if ts.data_const:
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qualifiers.append("const")
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if ts.data_volatile:
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qualifiers.append("volatile")
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parts.append("_".join(qualifiers))
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if sm.is_typedef and sm.name:
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return sm.name
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elif sm.is_renum and sm.name:
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base_name: str = sm.name
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elif bt:
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if isinstance(bt, str):
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base_name = bt
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elif isinstance(bt, type) and issubclass(bt, t.CType):
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base_name = bt.__name__
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elif isinstance(bt, t.CType):
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# 对命名的 CType（CStruct/CEnum/CUnion/REnum），优先使用其 name 属性
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# 否则回退到类名（如 'CInt'、'CChar'）
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_named: str | None = getattr(bt, 'name', None)
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base_name = _named if _named else type(bt).__name__
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else:
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base_name = str(bt)
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else:
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base_name = "void"
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if ts.is_array_ptr:
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ptr_str: str = ""
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if ts.ptr_count > 0:
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ptr_str = "*" * ts.ptr_count
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if ts.array_ptr:
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inner: str = ts.array_ptr.ToString()
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if ptr_str:
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parts.append(f"{base_name} {ptr_str}({inner})")
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else:
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parts.append(f"{base_name} ({inner})")
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else:
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if ptr_str:
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parts.append(f"{base_name} {ptr_str}()")
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else:
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parts.append(f"{base_name} ()")
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elif ts.array_ptr:
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inner = ts.array_ptr.ToString()
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if ts.ptr_count > 0:
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parts.append(f"{base_name} {'*' * ts.ptr_count}({inner})")
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else:
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parts.append(f"{base_name} ({inner})")
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else:
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parts.append(base_name)
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if ts.ptr_count > 0:
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parts.append("*" * ts.ptr_count)
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if ts.var_const:
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parts.append("const")
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if ts.var_volatile:
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parts.append("volatile")
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for dim in ts.array_dims:
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if dim:
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parts.append(f"[{dim}]")
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else:
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parts.append("[]")
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return " ".join(parts) if parts else "void"
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@staticmethod
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def CreateFromTypeName(TypeName: str) -> "CTypeInfo":
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"""从类型名字符串创建 CTypeInfo（兼容旧 API）"""
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info: CTypeInfo = CTypeInfo()
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if TypeName.startswith('struct '):
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info.BaseType = t.CStruct(name=TypeName[7:].strip()) if TypeName[7:].strip() else t.CStruct()
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elif TypeName.startswith('enum '):
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info.BaseType = t.CEnum(name=TypeName[5:].strip()) if TypeName[5:].strip() else t.CEnum()
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elif TypeName.startswith('union '):
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info.BaseType = t.CUnion(name=TypeName[6:].strip()) if TypeName[6:].strip() else t.CUnion()
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else:
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info.BaseType = t.CStruct(name=TypeName)
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return info
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# LLVM primitive type name → (CTypeClass, PtrCount) mapping
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# Used when generic type inference produces LLVM type names like 'i64', 'double', etc.
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_LLVM_PRIMITIVE_MAP: dict[str, tuple[type, int]] | None = None
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@classmethod
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def _get_llvm_primitive_map(cls) -> dict[str, tuple[type, int]]:
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if cls._LLVM_PRIMITIVE_MAP is not None:
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return cls._LLVM_PRIMITIVE_MAP
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cls._LLVM_PRIMITIVE_MAP = {
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'void': (t.CVoid, 0),
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'i1': (t.CInt, 0),
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'i8': (t.CChar, 0),
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'i16': (t.CShort, 0),
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'i32': (t.CInt, 0),
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'i64': (t.CLong, 0),
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'i128': (t.CInt, 0),
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'float': (t.CFloat, 0),
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'double': (t.CDouble, 0),
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'fp128': (t.CFloat128T, 0),
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}
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return cls._LLVM_PRIMITIVE_MAP
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@staticmethod
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def FromTypeName(TypeName: str) -> "CTypeInfo":
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"""从简单类型名构造 CTypeInfo（不经过 FromStr 字符串解析）"""
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from lib.core.TypeAnnotationResolver import TypeAnnotationResolver
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return TypeAnnotationResolver.from_type_name(TypeName)
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# FromStr 已移除 - 类型解析不再经过中间字符串格式
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# typedef 展开直接走 CTypeInfo 对象，不经过字符串解析
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@staticmethod
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def TryEvalConstExpr(node: ast.AST, SymbolTable: Any) -> Any:
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from lib.core.TypeAnnotationResolver import TypeAnnotationResolver
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return TypeAnnotationResolver.try_eval_const_expr(node, SymbolTable)
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@classmethod
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def FromNode(cls, Node: ast.AST, SymbolTable: Any) -> "CTypeInfo":
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"""从 AST 节点解析 CTypeInfo（类方法）
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Args:
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Node: AST 节点（如 ast.Name, ast.Attribute 等）
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SymbolTable: 符号表字典
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"""
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from lib.core.TypeAnnotationResolver import TypeAnnotationResolver
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return TypeAnnotationResolver.from_node(Node, SymbolTable)
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def Copy(self) -> "CTypeInfo":
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NewInfo: CTypeInfo = CTypeInfo()
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NewInfo._ts = self._ts.copy()
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NewInfo._sm = self._sm.copy()
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# CTypeInfo 引用字段需要深拷贝
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if isinstance(NewInfo._ts.func_ptr_return, CTypeInfo):
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NewInfo._ts.func_ptr_return = NewInfo._ts.func_ptr_return.Copy()
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if isinstance(NewInfo._ts.original_type, CTypeInfo):
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NewInfo._ts.original_type = NewInfo._ts.original_type.Copy()
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if NewInfo._ts.array_ptr:
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NewInfo._ts.array_ptr = NewInfo._ts.array_ptr.Copy()
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return NewInfo
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def get(self, key: str, default: Any = None) -> Any:
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"""获取额外属性"""
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return self._sm._extra.get(key, default)
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def set(self, key: str, value: Any) -> None:
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"""设置额外属性"""
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self._sm._extra[key] = value
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@staticmethod
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def VoidTypeInfo() -> "CTypeInfo":
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info: CTypeInfo = CTypeInfo()
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info.BaseType = t.CVoid()
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return info
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def ToLLVM(self, Gen: LlvmCodeGenerator) -> _ir.Type:
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if Gen is None:
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return _ir.IntType(32)
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return Gen._ctype_to_llvm(self)
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def __str__(self) -> str:
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return self.ToString()
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def __repr__(self) -> str:
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ts: TypeSpec = self._ts
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sm: SymbolMeta = self._sm
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return f"CTypeInfo(BaseType={ts._base_type}, PtrCount={ts.ptr_count}, IsTypedef={sm.is_typedef}, OriginalType={ts.original_type!r}, VarConst={ts.var_const}, DataConst={ts.data_const})"
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# 从 FIELD_ROUTES 静态绑定 _Delegated 描述符到 CTypeInfo 类
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# 这是一次性配置（类创建期执行），替代运行时 __setattr__/__getattr__ 动态路由
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for _old_name, (_target, _field) in FIELD_ROUTES.items():
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setattr(CTypeInfo, _old_name, _Delegated('_' + _target, _field))
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del _old_name, _target, _field
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class CTypeHelper:
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@staticmethod
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def GetTModuleCType(TypeName: str) -> type | None:
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result: type | None = CTypeRegistry.GetClassByName(TypeName)
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if result is not None:
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return result
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TypeClass: type | None = getattr(t, TypeName, None)
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if TypeClass and isinstance(TypeClass, type) and issubclass(TypeClass, t.CType):
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return TypeClass
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FallbackClass: type | None = getattr(t, f'_{TypeName}', None)
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if FallbackClass and isinstance(FallbackClass, type) and issubclass(FallbackClass, t.CType):
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return FallbackClass
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return None
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@staticmethod
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def GetCName(type_or_name: str | type) -> str:
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if isinstance(type_or_name, str):
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cls: type | None = CTypeRegistry.GetClassByName(type_or_name)
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if cls is None:
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cls = CTypeHelper.GetTModuleCType(type_or_name)
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if cls:
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return cls.__name__
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return type_or_name
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elif isinstance(type_or_name, type) and issubclass(type_or_name, t.CType):
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return type_or_name.__name__
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return ''
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||
class BuiltinTypeMap:
|
||
"""
|
||
内置类型映射表 - 字符串到 (CType类, PtrCount) 的映射
|
||
|
||
用法：BuiltinTypeMap.Get('int') -> (t.CInt, 0)
|
||
BuiltinTypeMap.Get('BYTEPTR') -> (t.CUnsignedChar, 1)
|
||
"""
|
||
|
||
_map: dict[str, tuple[type, int]] | None = None
|
||
|
||
@classmethod
|
||
def _build_map(cls) -> dict[str, tuple[type, int]]:
|
||
if cls._map is not None:
|
||
return cls._map
|
||
CTypeRegistry._build()
|
||
cls._map = {}
|
||
# 仅使用 Python 类名 → (CType 类, ptr_level) 映射。
|
||
# C 类型名（如 'int'、'int32_t'）不再通过 _cname_to_class 提供。
|
||
# C 头文件 stub 生成器使用独立的硬编码表（CTypeMapper._CNAME_TO_PY）。
|
||
for pyname, ctype_cls in CTypeRegistry._name_to_class.items():
|
||
pos: frozenset = getattr(ctype_cls, 'position', frozenset())
|
||
if t.CType.POINTER in pos and t.CType.BASE not in pos:
|
||
cls._map[pyname] = (ctype_cls, 1)
|
||
else:
|
||
cls._map[pyname] = (ctype_cls, 0)
|
||
# 保留一些常用的字符串速记（这些不是 CName，而是硬编码的便捷别名）。
|
||
# 包含 Python 内置类型名（int/float/bool）和 C 类型名速记（char/short/long 等）。
|
||
_SPECIAL: dict[str, tuple[type, int]] = {
|
||
# Python 内置类型名
|
||
'str': (t.CChar, 1), 'bytes': (t.CChar, 1),
|
||
'int': (t.CInt, 0), 'float': (t.CFloat, 0), 'bool': (t.CBool, 0),
|
||
# C 类型名速记
|
||
'char': (t.CChar, 0), 'short': (t.CShort, 0),
|
||
'long': (t.CLong, 0), 'long long': (t.CLongLong, 0),
|
||
'double': (t.CDouble, 0),
|
||
'unsigned': (t.CUnsigned, 0),
|
||
'signed': (t.CInt, 0), 'signed int': (t.CInt, 0),
|
||
'signed char': (t.CSignedChar, 0),
|
||
'void': (t.CVoid, 0), 'Void': (t.CVoid, 0),
|
||
}
|
||
for k, v in _SPECIAL.items():
|
||
if k not in cls._map:
|
||
cls._map[k] = v
|
||
_FLOAT_ALIASES: dict[str, tuple[type, int]] = {
|
||
'FLOAT8': (t.CFloat8T, 0), 'FLOAT16': (t.CFloat16T, 0),
|
||
'FLOAT32': (t.CFloat32T, 0), 'FLOAT64': (t.CFloat64T, 0),
|
||
'FLOAT128': (t.CFloat128T, 0),
|
||
}
|
||
for k, v in _FLOAT_ALIASES.items():
|
||
if k not in cls._map:
|
||
cls._map[k] = v
|
||
return cls._map
|
||
|
||
@classmethod
|
||
def Get(cls, type_name: str) -> tuple[type, int] | None:
|
||
"""获取类型类和指针层级"""
|
||
return cls._build_map().get(type_name)
|
||
|
||
|
||
class BaseHandle:
|
||
def __init__(self, translator: "Translator") -> None:
|
||
self.Trans: Translator = translator
|
||
self._CurrentCpythonObjectClass: str | None = None
|
||
|
||
@staticmethod
|
||
def _is_char_pointer(val: _ir.Value) -> bool:
|
||
"""检查值是否为 char* (i8*) 指针"""
|
||
if not isinstance(val.type, _ir.PointerType):
|
||
return False
|
||
pointee: _ir.Type = val.type.pointee
|
||
return isinstance(pointee, _ir.IntType) and pointee.width == 8
|
||
|
||
def HandleExprLlvm(self, Node: ast.AST, VarType: _ir.Type | str | None = None) -> _ir.Value | None:
|
||
return self.Trans.ExprHandler.HandleExprLlvm(Node, VarType)
|
||
|
||
def HandleBodyLlvm(self, Body: ast.AST | list[ast.stmt]) -> Any:
|
||
return self.Trans.BodyHandler.HandleBodyLlvm(Body)
|
||
|
||
def _get_int_ptr(self, Node: ast.AST) -> _ir.Value | None:
|
||
Gen: LlvmCodeGenerator = self.Trans.LlvmGen
|
||
if isinstance(Node, ast.Name):
|
||
if Node.id in Gen.variables:
|
||
return Gen.variables[Node.id]
|
||
elif isinstance(Node, ast.Attribute):
|
||
obj_val: Any = self.HandleExprLlvm(Node.value)
|
||
if not obj_val:
|
||
return None
|
||
if isinstance(obj_val.type, _ir.PointerType):
|
||
pointee: _ir.Type = obj_val.type.pointee
|
||
if isinstance(pointee, (_ir.IdentifiedStructType, _ir.LiteralStructType)):
|
||
StructName: str | None = None
|
||
if isinstance(pointee, _ir.IdentifiedStructType):
|
||
StructName = pointee.name
|
||
if not StructName:
|
||
for ClassName, struct_type in Gen.structs.items():
|
||
if struct_type == pointee:
|
||
StructName = ClassName
|
||
break
|
||
if StructName and StructName in Gen.structs:
|
||
offset: int = self.Trans.ExprHandler._get_llvm_member_offset(Node.attr, StructName, Gen)
|
||
member_ptr: Any = Gen.builder.gep(obj_val, [_ir.Constant(_ir.IntType(32), 0), _ir.Constant(_ir.IntType(32), offset)], name=f"{Node.attr}_ptr")
|
||
return member_ptr
|
||
return None
|
||
|
||
def _IsTModuleType(self, TypeName: str) -> bool:
|
||
if TypeName in ('t', 'State', 'Bit', 'Anonymous', 'Postdefinition'):
|
||
return True
|
||
TypeClass: type | None = getattr(t, TypeName, None)
|
||
if TypeClass and isinstance(TypeClass, type):
|
||
if issubclass(TypeClass, t.CType):
|
||
return True
|
||
FallbackClass: type | None = getattr(t, f'_{TypeName}', None)
|
||
if FallbackClass and isinstance(FallbackClass, type):
|
||
if issubclass(FallbackClass, t.CType):
|
||
return True
|
||
return False
|
||
|
||
def ResolveListElementType(
|
||
self,
|
||
elem_type_node: ast.expr,
|
||
Gen: Any,
|
||
*,
|
||
check_func_ptr: bool = False,
|
||
handle_str: bool = False,
|
||
void_fallback_width: int = 32,
|
||
fallback_to_cint: bool = False,
|
||
) -> tuple[Any, CTypeInfo | None]:
|
||
"""解析 list 元素类型，返回 (LLVM类型, CTypeInfo|None)。
|
||
|
||
统一处理结构体、str、函数指针、VoidType 回退等变体。
|
||
|
||
Args:
|
||
check_func_ptr: 是否检查函数指针（全局变量路径需要）
|
||
handle_str: 是否处理 str → i8*（局部变量路径需要）
|
||
void_fallback_width: VoidType 回退宽度 (32 或 8)
|
||
fallback_to_cint: 无类型信息时回退到 CInt
|
||
"""
|
||
elem_type_info: CTypeInfo | None = CTypeInfo.FromNode(elem_type_node, self.Trans.SymbolTable)
|
||
|
||
# 结构体类型
|
||
if isinstance(elem_type_node, ast.Name) and elem_type_node.id in Gen.structs:
|
||
if check_func_ptr:
|
||
sym_entry: CTypeInfo | None = self.Trans.SymbolTable.lookup(elem_type_node.id)
|
||
if sym_entry and isinstance(sym_entry, CTypeInfo) and sym_entry.IsFuncPtr:
|
||
return _ir.IntType(8).as_pointer(), elem_type_info
|
||
return Gen.structs[elem_type_node.id], elem_type_info
|
||
|
||
# str → i8*
|
||
if handle_str and isinstance(elem_type_node, ast.Name) and elem_type_node.id == 'str':
|
||
return _ir.PointerType(_ir.IntType(8)), elem_type_info
|
||
|
||
# 函数指针检查
|
||
if check_func_ptr and elem_type_info and elem_type_info.IsFuncPtr:
|
||
return _ir.IntType(8).as_pointer(), elem_type_info
|
||
|
||
# 回退到 CInt
|
||
if elem_type_info is None and fallback_to_cint:
|
||
elem_type_info = CTypeInfo()
|
||
elem_type_info.BaseType = t.CInt()
|
||
|
||
elem_type: Any = Gen._ctype_to_llvm(elem_type_info)
|
||
if isinstance(elem_type, _ir.VoidType):
|
||
elem_type = _ir.IntType(void_fallback_width)
|
||
|
||
return elem_type, elem_type_info
|
||
|
||
def ParseArrayCount(
|
||
self,
|
||
count_node: ast.expr | None,
|
||
Gen: Any,
|
||
value_node: ast.expr | None = None,
|
||
*,
|
||
mode: str = 'global',
|
||
) -> int:
|
||
"""解析数组计数，返回计数（默认 1）。
|
||
|
||
统一处理 Constant/Name/Attribute/BinOp/None 等形式。
|
||
None 或 Constant(None) 时从 value_node 推断（List 长度或 str 长度+1）。
|
||
|
||
Args:
|
||
count_node: 计数 AST 节点
|
||
value_node: 赋值右侧值节点（用于 count_node 为 None 时推断）
|
||
mode: 'global' 使用 _eval_global_count + SymbolTable + _define_constants；
|
||
'local' 使用 TryEvalConstExpr
|
||
"""
|
||
# None 或 Constant(None) → 从 value_node 推断
|
||
if count_node is None or (isinstance(count_node, ast.Constant) and count_node.value is None):
|
||
if value_node and isinstance(value_node, ast.List):
|
||
return len(value_node.elts)
|
||
if value_node and isinstance(value_node, ast.Constant) and isinstance(value_node.value, str):
|
||
return len(value_node.value) + 1
|
||
return 1
|
||
|
||
# Constant(int)
|
||
if isinstance(count_node, ast.Constant) and isinstance(count_node.value, int):
|
||
return count_node.value
|
||
|
||
if mode == 'global':
|
||
# Name → SymbolTable + _define_constants
|
||
if isinstance(count_node, ast.Name):
|
||
ArrayCount: int = 1
|
||
if self.Trans.SymbolTable.has(count_node.id):
|
||
sym_info: Any = self.Trans.SymbolTable[count_node.id]
|
||
if isinstance(sym_info.value, int):
|
||
ArrayCount = sym_info.value
|
||
if ArrayCount == 1 and count_node.id in Gen._define_constants:
|
||
def_val: Any = Gen._define_constants[count_node.id]
|
||
if isinstance(def_val, int):
|
||
ArrayCount = def_val
|
||
return ArrayCount
|
||
# Attribute / BinOp → _eval_global_count
|
||
if isinstance(count_node, (ast.Attribute, ast.BinOp)):
|
||
eval_fn: Any = getattr(self, '_eval_global_count', None)
|
||
if eval_fn is not None:
|
||
ev: int | None = eval_fn(count_node, Gen)
|
||
if ev is not None:
|
||
return ev
|
||
return 1
|
||
else:
|
||
# local mode → TryEvalConstExpr
|
||
eval_count: Any = CTypeInfo.TryEvalConstExpr(count_node, self.Trans.SymbolTable)
|
||
if eval_count is not None and isinstance(eval_count, int) and eval_count > 0:
|
||
return eval_count
|
||
return 1
|
||
|
||
return 1
|
||
|
||
def ResolveAnnotationType(self, annotation: ast.expr) -> CTypeInfo | None:
|
||
"""解析注解类型，BinOp(BitOr) 优先使用 MergeTypes，其他使用 FromNode。
|
||
|
||
统一处理函数返回类型和参数类型的 BinOp 联合类型解析。
|
||
"""
|
||
if isinstance(annotation, ast.BinOp) and isinstance(annotation.op, ast.BitOr):
|
||
merger: Any = getattr(self.Trans, 'TypeMergeHandler', None)
|
||
if merger:
|
||
info: CTypeInfo | None = merger.MergeTypes(annotation)
|
||
if info is not None and isinstance(info, CTypeInfo):
|
||
return info
|
||
return CTypeInfo.FromNode(annotation, self.Trans.SymbolTable)
|
||
|
||
def CollectAnnAssignMember(
|
||
self, item: ast.AST, Gen: Any
|
||
) -> tuple[str, _ir.Type, CTypeInfo | None] | None:
|
||
"""从 ast.AnnAssign 节点解析成员信息。
|
||
|
||
返回 (VarName, MemberType, TypeInfo)；TypeInfo 为 None 表示解析回退到 i32。
|
||
非 AnnAssign/Name 目标时返回 None。
|
||
"""
|
||
if not isinstance(item, ast.AnnAssign) or not isinstance(item.target, ast.Name):
|
||
return None
|
||
VarName: str = item.target.id
|
||
try:
|
||
TypeInfo: CTypeInfo | None = self.ResolveAnnotationType(item.annotation)
|
||
if TypeInfo is None:
|
||
TypeInfo = CTypeInfo()
|
||
TypeInfo.BaseType = t.CInt()
|
||
MemberType: _ir.Type = Gen._ctype_to_llvm(TypeInfo)
|
||
if isinstance(MemberType, _ir.VoidType):
|
||
MemberType = _ir.PointerType(_ir.IntType(8))
|
||
return VarName, MemberType, TypeInfo
|
||
except Exception as e:
|
||
_vlog().warning(f"HandlesBase: 忽略异常 {e}", exc_info=e)
|
||
return VarName, _ir.IntType(32), None
|
||
|
||
def LookupFunctionSymbol(self, name: str, *, module_path: str | None = None) -> CTypeInfo | None:
|
||
"""查找函数符号，先尝试 module_path.name，再回退到 name。
|
||
|
||
统一处理 HandlesExprCall / HandlesAssign 中重复的二级查找模式。
|
||
返回 CTypeInfo（不限定 IsFunction），由调用方检查标志位。
|
||
"""
|
||
st = self.Trans.SymbolTable
|
||
if module_path:
|
||
sym: CTypeInfo | None = st.lookup(f'{module_path}.{name}')
|
||
if sym:
|
||
return sym
|
||
return st.lookup(name)
|
||
|
||
def BuildLLVMFuncTypeFromSig(
|
||
self,
|
||
sym_info: CTypeInfo,
|
||
Gen: Any,
|
||
*,
|
||
mangled_name: str | None = None,
|
||
use_infer_fallback: bool = False,
|
||
) -> tuple[Any, list[Any], bool] | None:
|
||
"""从 CTypeInfo 函数签名构建 LLVM 函数类型。
|
||
|
||
返回 (ret_type, llvm_param_types, is_variadic)，非函数返回 None。
|
||
统一处理 FuncPtrReturn/FuncPtrParams → ToLLVM 转换、VoidType 回退。
|
||
|
||
Args:
|
||
mangled_name: 用于 _infer_return_type + stub 查找回退
|
||
use_infer_fallback: 为 True 时启用 _infer_return_type + stub 查找回退链
|
||
"""
|
||
if not sym_info.IsFunction:
|
||
return None
|
||
is_variadic: bool = sym_info.IsVariadic
|
||
ret_type_info = sym_info.FuncPtrReturn
|
||
if isinstance(ret_type_info, CTypeInfo) and ret_type_info.BaseType:
|
||
ret_type: Any = ret_type_info.ToLLVM(Gen)
|
||
elif use_infer_fallback and mangled_name:
|
||
inferred: Any = Gen._infer_return_type(mangled_name)
|
||
if isinstance(inferred, _ir.IntType) and inferred.width == 32:
|
||
try:
|
||
stub_ft: Any = self.Trans.ImportHandler._LookupStubFuncType(mangled_name, Gen)
|
||
if stub_ft and hasattr(stub_ft, 'return_type'):
|
||
inferred = stub_ft.return_type
|
||
except Exception:
|
||
pass
|
||
ret_type = inferred
|
||
else:
|
||
ret_type = Gen._CType2LLVM('i32', False)
|
||
param_type_infos = [pt for _, pt in (sym_info.FuncPtrParams or [])]
|
||
if isinstance(ret_type, _ir.VoidType):
|
||
ret_type = _ir.IntType(32)
|
||
llvm_param_types: list[Any] = []
|
||
for pt in param_type_infos:
|
||
if isinstance(pt, CTypeInfo) and pt.BaseType:
|
||
lp: Any = pt.ToLLVM(Gen)
|
||
else:
|
||
lp = Gen._CType2LLVM(pt if isinstance(pt, str) else 'i32', '*' in pt if isinstance(pt, str) else False)
|
||
if isinstance(lp, _ir.VoidType):
|
||
lp = _ir.IntType(8).as_pointer()
|
||
llvm_param_types.append(lp)
|
||
return ret_type, llvm_param_types, is_variadic
|
||
|
||
def GetOrCreateFuncDecl(
|
||
self,
|
||
name: str,
|
||
ret_type: Any,
|
||
param_types: list[Any],
|
||
Gen: Any,
|
||
*,
|
||
is_variadic: bool = False,
|
||
replace_name: str | None = None,
|
||
) -> Any:
|
||
"""创建或替换 LLVM 函数声明。
|
||
|
||
若 name 已存在且类型不匹配，通过 _replace_function_decl 替换。
|
||
replace_name 传递给 _replace_function_decl（通常为未 mangle 的 func_name）。
|
||
"""
|
||
if name not in Gen.functions:
|
||
func_type = _ir.FunctionType(ret_type, param_types, var_arg=is_variadic)
|
||
func_decl = _ir.Function(Gen.module, func_type, name=name)
|
||
Gen.functions[name] = func_decl
|
||
else:
|
||
existing = Gen.functions[name]
|
||
existing_type = getattr(existing, 'ftype', None)
|
||
new_type = _ir.FunctionType(ret_type, param_types, var_arg=is_variadic)
|
||
if existing_type and existing_type != new_type:
|
||
replaced = self.Trans.FunctionHandler._replace_function_decl(Gen, replace_name or name, new_type)
|
||
if replaced and replaced != existing:
|
||
Gen.functions[name] = replaced
|
||
return Gen.functions[name]
|
||
|
||
def GetOrCreateStubFuncDecl(
|
||
self,
|
||
decl_name: str,
|
||
stub_func_type: Any,
|
||
Gen: Any,
|
||
*,
|
||
alias: str | None = None,
|
||
check_existing: bool = True,
|
||
) -> Any:
|
||
"""创建 stub 函数声明，可选注册别名。
|
||
|
||
check_existing=False 时跳过存在性检查（用于确定不存在的场景）。
|
||
"""
|
||
if check_existing and decl_name in Gen.functions:
|
||
func_decl = Gen.functions[decl_name]
|
||
else:
|
||
func_decl = _ir.Function(Gen.module, stub_func_type, name=decl_name)
|
||
Gen.functions[decl_name] = func_decl
|
||
if alias and alias != decl_name:
|
||
if not check_existing or alias not in Gen.functions:
|
||
Gen.functions[alias] = func_decl
|
||
return func_decl
|
||
|
||
|
||
StrictMode: bool = _config.mode == 'strict' |