wgpu/deno_webgpu/command_buffer.rs

// Copyright 2018-2025 the Deno authors. MIT license.

use std::cell::OnceCell;

use deno_core::op2;
use deno_core::GarbageCollected;
use deno_core::WebIDL;

use crate::Instance;

pub struct GPUCommandBuffer {
    pub instance: Instance,
    pub id: wgpu_core::id::CommandBufferId,
    pub label: String,

    pub consumed: OnceCell<()>,
}

impl Drop for GPUCommandBuffer {
    fn drop(&mut self) {
        if self.consumed.get().is_none() {
            self.instance.command_buffer_drop(self.id);
        }
    }
}

impl deno_core::webidl::WebIdlInterfaceConverter for GPUCommandBuffer {
    const NAME: &'static str = "GPUCommandBuffer";
}

impl GarbageCollected for GPUCommandBuffer {}

#[op2]
impl GPUCommandBuffer {
    #[getter]
    #[string]
    fn label(&self) -> String {
        self.label.clone()
    }
    #[setter]
    #[string]
    fn label(&self, #[webidl] _label: String) {
        // TODO(@crowlKats): no-op, needs wpgu to implement changing the label
    }
}

#[derive(WebIDL)]
#[webidl(dictionary)]
pub(crate) struct GPUCommandBufferDescriptor {
    #[webidl(default = String::new())]
    pub label: String,
}