feat: PinMAP转PinList v1.2.0 - 新增PinList转PinMAP反向转换功能

Code/src/models.py

@@ -46,6 +46,31 @@ class ValidationResult:
     warnings: list[ValidationError] = field(default_factory=list)
 
 
+@dataclass
+class PinListEntry:
+    """A single pin entry from the PinList."""
+    number: int       # Pin 序号（B 列）
+    name: str         # PinName（A 列，可能为空）
+
+
+@dataclass
+class EdgePins:
+    """Pins assigned to one edge of the PinMAP."""
+    edge: str                     # "left" | "bottom" | "right" | "top"
+    pins: list[tuple[int, str]]   # [(number, name), ...]
+    cells: list[tuple[int, int]]  # 对应的单元格坐标 (row, col) 0-based
+
+
+@dataclass
+class PinMAPLayout:
+    """计算出的 PinMAP 布局。"""
+    package_info: str
+    rows: int
+    cols: int
+    edges: dict[str, EdgePins]    # left/bottom/right/top
+    cells: dict[str, str]         # 单元格数据 {"A2": "1", "B2": "Pin1", ...}
+
+
 # ── Custom exceptions ──────────────────────────────────────────────
 
 class PinMapError(Exception):
@@ -58,3 +83,7 @@ class FileFormatError(PinMapError):
 
 class StructureError(PinMapError):
     """Raised when the PinMAP structure is invalid or unrecognisable."""
+
+
+class LayoutError(PinMapError):
+    """布局计算错误（尺寸无效、Pin 数量不匹配等）。"""