TermiNexus
2f0d52e736
两处根因：
1. list[t.CPtr] 报 Undefined method 'append'：
- _resolve_generic_slice_type 对 t.CPtr 返回裸名 'CPtr'，type_map['T']='CPtr'
替换进模板（item: CPtr）后 CPtr 不在顶层作用域 → append 声明注册失败
- 改保留带前缀 't.CPtr'（可解析）
- 查找端（SymbolUtils.FindStructNameInAnnotation）与声明端
（DeclarationGenerator）的 CPtr 统一规范化为 'ptr'，与特化端
_mangle_generic_class_name 一致（list[CPtr]/list[i8*] vs list[ptr]）
- _specialize_generic_class 的 cptr_params/class_type_names 判定改 tn_bare
2. list[对象] elem_size=0（get(0)==get(1) 同槽根因）：
- T.__sizeof__() 特化后为 'X | t.CPtr'（BinOp 联合），_HandleSizeofLlvm
对 BinOp 落到 else 返回 0 → list.__elem_size__=0 → 元素全写同槽
- 改含 t.CPtr 的联合类型返回 8（指针大小）
236 lines
10 KiB
Python
236 lines
10 KiB
Python
"""共享工具函数：符号表处理中使用的 AST 分析工具"""
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from __future__ import annotations
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import vast as ast
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import re
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from lib.includes import t
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_T_MODULE_NAMES: frozenset[str] = frozenset({'t', t.__name__})
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# Viper 软关键字 fn/fun/func/function 是 def 的别名（行首 + 空白 + 标识符才算函数定义，
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# 变量名/调用/注解中的 fn 不受影响）。展开为 def 后行号不变，供 ast.parse 使用。
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_SOFT_KEYWORD_RE: re.Pattern[str] = re.compile(
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r'^(\s*)(function|func|fun|fn)(\s+)(?=[A-Za-z_])', re.MULTILINE
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)
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def ExpandSoftKeywords(Code: str) -> str:
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"""将 Viper 软关键字 fn/fun/func/function 展开为 def（函数定义行）。
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仅在"行首缩进 + 关键字 + 空白 + 标识符"的函数定义形态匹配，
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变量名（fn = 5）、调用（fn(x)）、注解（x: fn）与字符串内容不受影响。
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展开为 def 与关键字等宽或更短，行号不变，AST 行号映射保持有效。
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"""
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if not Code:
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return Code
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return _SOFT_KEYWORD_RE.sub(lambda m: f'{m.group(1)}def{m.group(3)}', Code)
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def IsTModule(module_id: str, symtable: object | None = None) -> bool:
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"""检查模块标识符是否指向 t 类型模块（支持别名如 import t as tt）"""
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if module_id in _T_MODULE_NAMES:
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return True
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if symtable is not None and hasattr(symtable, 'import_aliases'):
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resolved: str = symtable.import_aliases.get(module_id, module_id)
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if resolved in _T_MODULE_NAMES:
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return True
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return False
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def IsTModulePath(module_path: str) -> bool:
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"""检查模块路径是否指向 t 类型模块"""
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if module_path in _T_MODULE_NAMES:
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return True
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if module_path:
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t_name: str
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for t_name in _T_MODULE_NAMES:
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if module_path == t_name or module_path.startswith(t_name + '.'):
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return True
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return False
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def AnnotationContainsTType(node: ast.AST, TypeName: str) -> bool:
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"""检测 AST 节点中是否包含指定名称的 t 模块类型"""
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if isinstance(node, ast.Attribute):
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if (hasattr(node.value, 'id') and IsTModule(node.value.id) and
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node.attr == TypeName):
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return True
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elif isinstance(node, ast.BinOp):
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return AnnotationContainsTType(node.left, TypeName) or AnnotationContainsTType(node.right, TypeName)
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elif isinstance(node, ast.Call):
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if AnnotationContainsTType(node.func, TypeName):
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return True
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for arg in node.args:
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if AnnotationContainsTType(arg, TypeName):
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return True
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elif isinstance(node, ast.Subscript):
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if AnnotationContainsTType(node.value, TypeName):
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return True
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if AnnotationContainsTType(node.slice, TypeName):
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return True
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return False
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def IsListAnnotation(annotation: ast.expr) -> bool:
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"""检查注解是否为栈上固定数组类型（t.CArray[...] 或 list[type, count]）"""
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if not isinstance(annotation, ast.Subscript):
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return False
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value = annotation.value
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# t.CArray[...]
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if (isinstance(value, ast.Attribute)
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and isinstance(value.value, ast.Name)
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and value.value.id == 't'
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and value.attr == 'CArray'):
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return True
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# list[type, count] — 仅匹配双参数 Tuple 切片（固定数组），
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# 单参数 list[type] 不匹配（走泛型类 list[T] 路径）
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if (isinstance(value, ast.Name)
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and value.id == 'list'
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and isinstance(annotation.slice, ast.Tuple)
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and len(annotation.slice.elts) == 2):
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return True
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return False
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def ExtractListFromBinOp(annotation: ast.expr) -> ast.Subscript | None:
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"""从 BinOp(BitOr) 注解中提取 list[...] 部分，如 list[i32] | t.CPtr"""
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if isinstance(annotation, ast.BinOp) and isinstance(annotation.op, ast.BitOr):
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for side in (annotation.left, annotation.right):
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if IsListAnnotation(side):
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return side
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return None
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class ListAnnotationParseResult:
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"""list[...] 注解解析结果。
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is_pointer=True 表示单参数 list[type] → 指针模式；
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is_pointer=False 表示 Tuple(2) 模式 list[type, count]。
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"""
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__slots__ = ('elem_type_node', 'count_node', 'is_pointer')
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def __init__(self, elem_type_node: ast.expr, count_node: ast.expr | None, is_pointer: bool) -> None:
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self.elem_type_node: ast.expr = elem_type_node
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self.count_node: ast.expr | None = count_node
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self.is_pointer: bool = is_pointer
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def ParseListAnnotation(annotation: ast.expr) -> ListAnnotationParseResult | None:
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"""解析 list[...] 注解，统一处理 list[type, count] / list[type] / BinOp(BitOr) 形式。
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自动处理 BinOp(BitOr) 包裹（如 list[i32, N] | t.CPtr）。
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返回 None 表示不是 list 注解。
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"""
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list_node: ast.expr = annotation
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if isinstance(annotation, ast.BinOp) and isinstance(annotation.op, ast.BitOr):
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extracted: ast.Subscript | None = ExtractListFromBinOp(annotation)
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if extracted is None:
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return None
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list_node = extracted
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if not IsListAnnotation(list_node):
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return None
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slice_node: ast.AST = list_node.slice
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if isinstance(slice_node, ast.Tuple) and len(slice_node.elts) == 2:
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return ListAnnotationParseResult(slice_node.elts[0], slice_node.elts[1], is_pointer=False)
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# 单参数 list[type] → 指针模式
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return ListAnnotationParseResult(slice_node, None, is_pointer=True)
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def CheckAnnotationHasCInline(annotation_node: ast.AST | None) -> bool:
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"""检测注解节点中是否包含 CInline"""
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if annotation_node is None:
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return False
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if isinstance(annotation_node, ast.Attribute):
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if hasattr(annotation_node.value, 'id') and IsTModule(annotation_node.value.id) and annotation_node.attr == 'CInline':
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return True
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if isinstance(annotation_node, ast.Name):
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if annotation_node.id == 'CInline':
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return True
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if isinstance(annotation_node, ast.BinOp) and isinstance(annotation_node.op, ast.BitOr):
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return CheckAnnotationHasCInline(annotation_node.left) or CheckAnnotationHasCInline(annotation_node.right)
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return False
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def ExtractTypeNameFromBinOp(annotation: ast.expr) -> str | None:
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"""从 BinOp(BitOr) 注解左侧提取类型名（如 TypeA | TypeB → TypeA）。
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返回 Name.id 或 Attribute.attr，非 BinOp 返回 None。
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"""
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if isinstance(annotation, ast.BinOp) and isinstance(annotation.op, ast.BitOr):
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left: ast.expr = annotation.left
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if isinstance(left, ast.Name):
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return left.id
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if isinstance(left, ast.Attribute):
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return left.attr
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return None
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def FindStructNameInAnnotation(node: ast.AST, struct_names: dict | set) -> str | None:
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"""递归在注解中查找结构体名（支持 BinOp(BitOr) 递归）。
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检查 Name.id、Constant.str、Attribute.attr 是否在 struct_names 中。
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支持泛型特化类型（如 GSList[Param]），构造特化名后检查是否在 struct_names 中。
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"""
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if isinstance(node, ast.Name) and node.id in struct_names:
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return node.id
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if isinstance(node, ast.Constant) and isinstance(node.value, str) and node.value in struct_names:
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return node.value
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if isinstance(node, ast.Attribute) and node.attr in struct_names:
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return node.attr
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if isinstance(node, ast.Subscript):
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base_name: str | None = None
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if isinstance(node.value, ast.Name):
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base_name = node.value.id
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elif isinstance(node.value, ast.Attribute):
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base_name = node.value.attr
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if base_name:
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slice_node: ast.AST = node.slice
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if hasattr(ast, 'Index') and isinstance(slice_node, ast.Index):
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slice_node = slice_node.value
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type_args: list[str] = []
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if isinstance(slice_node, ast.Name):
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# 裸 CPtr（i8*）与 t.CPtr 同规范化为 'ptr'，与
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# _resolve_type_arg_str/_mangle_generic_class_name 一致
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type_args.append('ptr' if slice_node.id == 'CPtr' else slice_node.id)
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elif isinstance(slice_node, ast.Attribute):
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type_args.append('ptr' if slice_node.attr == 'CPtr' else slice_node.attr)
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elif isinstance(slice_node, ast.Tuple):
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for elt in slice_node.elts:
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if isinstance(elt, ast.Name):
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type_args.append('ptr' if elt.id == 'CPtr' else elt.id)
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elif isinstance(elt, ast.Attribute):
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type_args.append('ptr' if elt.attr == 'CPtr' else elt.attr)
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if type_args:
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spec_name: str = base_name + ''.join(f'[{arg}]' for arg in type_args)
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if spec_name in struct_names:
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return spec_name
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if base_name in struct_names:
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return base_name
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if isinstance(node, ast.BinOp) and isinstance(node.op, ast.BitOr):
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result: str | None = FindStructNameInAnnotation(node.left, struct_names)
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if result:
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return result
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return FindStructNameInAnnotation(node.right, struct_names)
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return None
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def AnnotationContainsName(annotation: ast.AST, name: str) -> bool:
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"""检查注解中是否包含指定名称（支持 BinOp(BitOr) 递归）。
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同时检查 Attribute.attr 和 Name.id，比 ast.dump 字符串匹配更精确。
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"""
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if isinstance(annotation, ast.Attribute):
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return annotation.attr == name
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if isinstance(annotation, ast.Name):
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return annotation.id == name
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if isinstance(annotation, ast.BinOp) and isinstance(annotation.op, ast.BitOr):
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return AnnotationContainsName(annotation.left, name) or AnnotationContainsName(annotation.right, name)
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return False
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def IsCPtrNode(node: ast.AST) -> bool:
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"""检查节点是否为 t.CPtr 属性引用。"""
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return (isinstance(node, ast.Attribute)
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and isinstance(node.value, ast.Name)
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and node.value.id == 't'
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and node.attr == 'CPtr')
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