snapshot before regression test
This commit is contained in:
t
262
TransPyV/App/lib/core/Handles/HandlesBase.py
Normal file
262
TransPyV/App/lib/core/Handles/HandlesBase.py
Normal file
@@ -0,0 +1,262 @@
|
||||
import t, c
|
||||
from stdint import *
|
||||
import string
|
||||
import viperlib
|
||||
import memhub
|
||||
import hashtable
|
||||
import lib.core.Handles.HandlesTranslator as HT
|
||||
|
||||
|
||||
# ============================================================
|
||||
# TypeKind - 类型种类枚举
|
||||
#
|
||||
# 替代 TransPyC 中 CType.position frozenset 的元属性系统。
|
||||
# 每个 TypeInfo 通过 Kind 字段标记其种类，避免 Python ClassVar 反射。
|
||||
# ============================================================
|
||||
class TypeKind(t.CEnum):
|
||||
Basic: t.State # 基本类型（int/char/float/double/bool 等）
|
||||
Pointer: t.State # 指针（T*）— 指针层数由 TypeInfo.PtrCount 表达
|
||||
Struct: t.State # 结构体/类
|
||||
Union: t.State # 联合体
|
||||
Enum: t.State # 枚举
|
||||
Typedef: t.State # 类型别名
|
||||
Function: t.State # 函数指针
|
||||
Array: t.State # 数组 T[N]
|
||||
Void: t.State # void
|
||||
|
||||
|
||||
# ============================================================
|
||||
# TypeInfo - 类型信息结构
|
||||
#
|
||||
# 设计原则（相对 TransPyC CTypeInfo 的简化）:
|
||||
# - POD 数据结构，无虚函数，无 Python 元特性（ClassVar/Generic/frozenset）
|
||||
# - 通过 mbuddy 分配，调用方管理生命周期（参考 llvmlite Module 模式）
|
||||
# - 通过 Kind 枚举代替 position frozenset
|
||||
# - PtrCount 表达指针层数（0=非指针, 1=T*, 2=T**）
|
||||
# - IsSigned 三态：-1=不适用(void/float), 0=unsigned, 1=signed
|
||||
#
|
||||
# 字段布局（8 字段）:
|
||||
# Kind : i32 类型种类（TypeKind 枚举值）
|
||||
# Name : i8* 类型名（如 'int', 'CInt', 'MyStruct'），可能为 None
|
||||
# Size : i32 位宽（0=void/未知；int=32, char=8, double=64, long long=64）
|
||||
# Align : i32 对齐字节数（0=默认）
|
||||
# IsSigned : i32 -1=N/A, 0=unsigned, 1=signed
|
||||
# PtrCount : i32 指针层数
|
||||
# IsConst : i32 const 限定符（0/1）
|
||||
# IsVolatile : i32 volatile 限定符（0/1）
|
||||
#
|
||||
# 注意：Size 使用位宽（bit width）而非字节数，与 LLVM IR 的 i{N} 和
|
||||
# TransPyC CType.Size 约定一致（CInt.Size=32, CChar.Size=8）。
|
||||
# ============================================================
|
||||
@t.NoVTable
|
||||
class TypeInfo:
|
||||
Kind: int
|
||||
Name: str
|
||||
Size: int
|
||||
Align: int
|
||||
IsSigned: int
|
||||
PtrCount: int
|
||||
IsConst: int
|
||||
IsVolatile: int
|
||||
|
||||
|
||||
# ============================================================
|
||||
# TypeRegistry - 类型注册表
|
||||
#
|
||||
# 维护 name(str) → TypeInfo* 映射，基于 HashTable 实现 O(1) 查找。
|
||||
# 替代 TransPyC CTypeRegistry 的 _name_to_class dict。
|
||||
# 内置基本类型（int/char/void/...）由 InitBasicTypes 注册。
|
||||
# ============================================================
|
||||
class TypeRegistry:
|
||||
_ht: hashtable.HashTable | t.CPtr
|
||||
__mbuddy__: memhub.MemManager | t.CPtr
|
||||
|
||||
def Register(self, ti: TypeInfo | t.CPtr) -> int:
|
||||
"""注册一个 TypeInfo。ti.Name 字段必须已设置。
|
||||
|
||||
Returns:
|
||||
1 表示成功，0 表示失败（ti 为 None 或 Name 为 None）
|
||||
"""
|
||||
if ti is None:
|
||||
return 0
|
||||
if ti.Name is None:
|
||||
return 0
|
||||
self._ht[ti.Name] = ti
|
||||
return 1
|
||||
|
||||
def Lookup(self, name: str) -> TypeInfo | t.CPtr:
|
||||
"""按名称查找 TypeInfo。
|
||||
|
||||
Returns:
|
||||
找到返回 TypeInfo*，找不到返回 None
|
||||
"""
|
||||
if name is None:
|
||||
return None
|
||||
return self._ht[name]
|
||||
|
||||
def Has(self, name: str) -> int:
|
||||
"""检查类型是否已注册。"""
|
||||
if name is None:
|
||||
return 0
|
||||
return name in self._ht
|
||||
|
||||
|
||||
# ============================================================
|
||||
# NewTypeInfo - 工厂函数：分配并初始化一个 TypeInfo
|
||||
#
|
||||
# 默认值：Kind=Basic, IsSigned=-1, 其余=0/None
|
||||
# ============================================================
|
||||
def NewTypeInfo(pool: memhub.MemManager | t.CPtr) -> TypeInfo | t.CPtr:
|
||||
ptr: TypeInfo | t.CPtr = pool.alloc(TypeInfo.__sizeof__())
|
||||
if ptr is None:
|
||||
return None
|
||||
string.memset(ptr, 0, TypeInfo.__sizeof__())
|
||||
ptr.Kind = TypeKind.Basic
|
||||
ptr.IsSigned = -1
|
||||
return ptr
|
||||
|
||||
|
||||
# ============================================================
|
||||
# NewTypeRegistry - 工厂函数：创建类型注册表
|
||||
# ============================================================
|
||||
def NewTypeRegistry(pool: memhub.MemManager | t.CPtr) -> TypeRegistry | t.CPtr:
|
||||
ptr: TypeRegistry | t.CPtr = pool.alloc(TypeRegistry.__sizeof__())
|
||||
if ptr is None:
|
||||
return None
|
||||
string.memset(ptr, 0, TypeRegistry.__sizeof__())
|
||||
ptr.__mbuddy__ = pool
|
||||
ptr._ht = hashtable.HashTable(pool)
|
||||
return ptr
|
||||
|
||||
|
||||
# ============================================================
|
||||
# TypeToLLVM - 将 TypeInfo 转换为 LLVM IR 类型字符串
|
||||
#
|
||||
# 规则:
|
||||
# - Kind == Void 或 (Size==0 且 IsSigned==-1 且 PtrCount==0) → "void"
|
||||
# - void 有 PtrCount > 0 → "i8" + PtrCount 个 "*"
|
||||
# - IsSigned == -1 且 Size > 0 → 浮点: half/float/double/fp128
|
||||
# - IsSigned != -1 且 Size > 0 → 整数: i{Size}
|
||||
# - 未知 → "i8*"
|
||||
#
|
||||
# Args:
|
||||
# buf: 输出缓冲区（i8*）
|
||||
# buf_size: 缓冲区容量
|
||||
# ti: TypeInfo 指针
|
||||
#
|
||||
# Returns:
|
||||
# 写入的字符数（不含 NUL），失败返回 -1
|
||||
# ============================================================
|
||||
def TypeToLLVM(buf: t.CChar | t.CPtr, buf_size: t.CSizeT,
|
||||
ti: TypeInfo | t.CPtr) -> int:
|
||||
if buf is None:
|
||||
return -1
|
||||
if ti is None:
|
||||
return -1
|
||||
if buf_size == 0:
|
||||
return -1
|
||||
|
||||
# 判定 void
|
||||
is_void: int = 0
|
||||
if ti.Kind == TypeKind.Void:
|
||||
is_void = 1
|
||||
elif ti.Size == 0 and ti.IsSigned == -1 and ti.PtrCount == 0:
|
||||
is_void = 1
|
||||
|
||||
# 写入 base 类型字符串到 buf
|
||||
base_len: int = 0
|
||||
if is_void == 1:
|
||||
if ti.PtrCount == 0:
|
||||
# "void"
|
||||
if buf_size < 5:
|
||||
return -1
|
||||
string.strcpy(buf, "void")
|
||||
base_len = 4
|
||||
else:
|
||||
# void* → i8*（LLVM 中 void* 表示为 i8*）
|
||||
if buf_size < 4:
|
||||
return -1
|
||||
string.strcpy(buf, "i8")
|
||||
base_len = 2
|
||||
elif ti.IsSigned == -1:
|
||||
# 浮点
|
||||
if ti.Size == 16:
|
||||
if buf_size < 5:
|
||||
return -1
|
||||
string.strcpy(buf, "half")
|
||||
base_len = 4
|
||||
elif ti.Size == 32:
|
||||
if buf_size < 6:
|
||||
return -1
|
||||
string.strcpy(buf, "float")
|
||||
base_len = 5
|
||||
elif ti.Size == 64:
|
||||
if buf_size < 7:
|
||||
return -1
|
||||
string.strcpy(buf, "double")
|
||||
base_len = 6
|
||||
elif ti.Size == 128:
|
||||
if buf_size < 6:
|
||||
return -1
|
||||
string.strcpy(buf, "fp128")
|
||||
base_len = 5
|
||||
else:
|
||||
# 未知浮点尺寸 → double 兜底
|
||||
if buf_size < 7:
|
||||
return -1
|
||||
string.strcpy(buf, "double")
|
||||
base_len = 6
|
||||
else:
|
||||
# 整数: i{Size}，用 snprintf 安全写入
|
||||
if ti.Size <= 0:
|
||||
# 无效尺寸 → i8 兜底
|
||||
if buf_size < 4:
|
||||
return -1
|
||||
string.strcpy(buf, "i8")
|
||||
base_len = 2
|
||||
else:
|
||||
viperlib.snprintf(buf, buf_size, "i%d", ti.Size)
|
||||
base_len = string.strlen(buf)
|
||||
|
||||
# 追加 PtrCount 个 "*"
|
||||
if base_len + ti.PtrCount + 1 > buf_size:
|
||||
return -1
|
||||
pos: int = base_len
|
||||
for i in range(ti.PtrCount):
|
||||
buf[pos] = '*'
|
||||
pos += 1
|
||||
buf[pos] = 0
|
||||
return pos
|
||||
|
||||
|
||||
# ============================================================
|
||||
# Mixin - 所有 Handle 的非多态基类（对应 TransPyC 的 BaseHandle）
|
||||
#
|
||||
# @t.NoVTable 继承：字段展平嵌入子类，无 vtable 开销（对应 C++ 非多态继承）。
|
||||
# 子类继承 Trans 字段 + 共享工具方法，编译器自动生成子类方法包装
|
||||
# （self bitcast 为父类指针后调用），子类可直接调用继承的方法。
|
||||
#
|
||||
# 用法：
|
||||
# @t.NoVTable
|
||||
# class AssignHandle(Mixin):
|
||||
# _CurrentClass: str
|
||||
# def __init__(self, trans):
|
||||
# self.InitMixin(trans)
|
||||
# self._CurrentClass = None
|
||||
# def Handle(self, node) -> int:
|
||||
# rhs = self.Trans.ExprH.HandleValue(node.value)
|
||||
# ...
|
||||
# ============================================================
|
||||
@t.NoVTable
|
||||
class Mixin:
|
||||
"""所有 Handle 的非多态基类：持有 Translator 回指针 + 共享委托方法"""
|
||||
Trans: HT.Translator | t.CPtr
|
||||
|
||||
def InitMixin(self, trans: HT.Translator | t.CPtr) -> int:
|
||||
"""初始化 Mixin 字段（子类 __init__ 中调用）"""
|
||||
self.Trans = trans
|
||||
return 0
|
||||
|
||||
|
||||
# 全局 mbuddy 指针
|
||||
_mbuddy: t.CVoid | t.CPtr
|
||||
Reference in New Issue
Block a user