Initial import of TransPyV

Test/App/vtable_test.py

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+import stdio
+import t, c
+
+
+@t.CVTable
+class Animal:
+    name: t.CInt
+
+    def __init__(self, n: t.CInt):
+        self.name = n
+
+    def GetName(self) -> t.CInt:
+        return self.name
+
+    def Speak(self) -> t.CInt:
+        return 0
+
+
+@t.CVTable
+class Shape:
+    sides: t.CInt
+
+    def SetSides(self, n: t.CInt) -> t.CInt:
+        self.sides = n
+        return 0
+
+    def GetSides(self) -> t.CInt:
+        return self.sides
+
+
+def vtable_test() -> int:
+    stdio.printf("vtable: === Test Start ===\n")
+
+    # 测试 1: Animal 虚方法调用（无参，访问 self 字段）
+    a: Animal = Animal(42)
+    name: int = a.GetName()
+    stdio.printf("vtable: a.GetName()=%d (expected 42)\n", name)
+    if name != 42:
+        stdio.printf("[FAIL] a.GetName()=%d expected 42\n", name)
+        return 1
+
+    speak: int = a.Speak()
+    stdio.printf("vtable: a.Speak()=%d (expected 0)\n", speak)
+    if speak != 0:
+        stdio.printf("[FAIL] a.Speak()=%d expected 0\n", speak)
+        return 1
+
+    # 测试 2: Shape 虚方法调用（带参，修改 self 字段）
+    s: Shape = Shape()
+    r: int = s.SetSides(4)
+    stdio.printf("vtable: s.SetSides(4)=%d (expected 0)\n", r)
+    if r != 0:
+        stdio.printf("[FAIL] s.SetSides(4)=%d expected 0\n", r)
+        return 1
+
+    sides: int = s.GetSides()
+    stdio.printf("vtable: s.GetSides()=%d (expected 4)\n", sides)
+    if sides != 4:
+        stdio.printf("[FAIL] s.GetSides()=%d expected 4\n", sides)
+        return 1
+
+    stdio.printf("vtable: === All Tests Passed ===\n")
+    return 0