matpipeline.py 文件源码

def __add__(self, other):
        if not isinstance(other, Node):
            other = Node(data=other)
        if other.type == 'val':
            if other.value in (0, Color((0,0,0)), Vector((0,0,0))):
                return self  # useless addition if other is zero
        if self.type == 'val':
            if self.value in (0, Color((0,0,0)), Vector((0,0,0))):
                return other  # useless addition if other is zero
        return Node('ADD', inputs=(self, other))