Derive Macro codegen::LayoutType

#[derive(LayoutType)]

Derives LayoutType for a struct.

Examples

You can create your own layout types and use them as your layout IO to customize the API for accessing shapes within your port. This will work as long as the flattened lengths (i.e. the number of nets) of the original IO and the custom IO are the same.

#[derive(Io, Clone, Default)]
#[substrate(layout_type = "BufferIoLayout")]
pub struct BufferIo {
    vdd: InOut<Signal>,
    vss: InOut<Signal>,
    din: Input<Signal>,
    dout: Output<Signal>,
}

#[derive(layout::HardwareType, Clone)]
pub struct BufferIoLayout {
    vdd: Port,
    vss: Port,
    din: ShapePort,
    dout: ShapePort,
}

impl CustomHardwareType<BufferIo> for BufferIoLayout {
    fn from_layout_type(_other: &BufferIo) -> Self {
        Self {
            vdd: Port,
            vss: Port,
            din: ShapePort,
            dout: ShapePort,
        }
    }
}