1 files changed, 252 insertions, 0 deletions
diff --git a/op_crates/webgpu/error.rs b/op_crates/webgpu/error.rs
new file mode 100644
index 000000000..e793dabfa
--- /dev/null
+++ b/op_crates/webgpu/error.rs
@@ -0,0 +1,252 @@
+use deno_core::error::AnyError;
+use serde::Serialize;
+use std::fmt;
+use wgpu_core::binding_model::CreateBindGroupError;
+use wgpu_core::binding_model::CreateBindGroupLayoutError;
+use wgpu_core::binding_model::CreatePipelineLayoutError;
+use wgpu_core::binding_model::GetBindGroupLayoutError;
+use wgpu_core::command::CommandAllocatorError;
+use wgpu_core::command::CommandEncoderError;
+use wgpu_core::command::ComputePassError;
+use wgpu_core::command::CopyError;
+use wgpu_core::command::CreateRenderBundleError;
+use wgpu_core::command::QueryError;
+use wgpu_core::command::RenderBundleError;
+use wgpu_core::command::RenderPassError;
+use wgpu_core::device::queue::QueueSubmitError;
+use wgpu_core::device::queue::QueueWriteError;
+use wgpu_core::device::DeviceError;
+use wgpu_core::pipeline::CreateComputePipelineError;
+use wgpu_core::pipeline::CreateRenderPipelineError;
+use wgpu_core::pipeline::CreateShaderModuleError;
+use wgpu_core::resource::BufferAccessError;
+use wgpu_core::resource::CreateBufferError;
+use wgpu_core::resource::CreateQuerySetError;
+use wgpu_core::resource::CreateSamplerError;
+use wgpu_core::resource::CreateTextureError;
+use wgpu_core::resource::CreateTextureViewError;
+
+#[derive(Serialize)]
+#[serde(tag = "type", content = "value")]
+#[serde(rename_all = "kebab-case")]
+pub enum WebGPUError {
+  Lost,
+  OutOfMemory,
+  Validation(String),
+}
+
+impl From<CreateBufferError> for WebGPUError {
+  fn from(err: CreateBufferError) -> Self {
+    match err {
+      CreateBufferError::Device(err) => err.into(),
+      CreateBufferError::AccessError(err) => err.into(),
+      err => WebGPUError::Validation(err.to_string()),
+    }
+  }
+}
+
+impl From<DeviceError> for WebGPUError {
+  fn from(err: DeviceError) -> Self {
+    match err {
+      DeviceError::Lost => WebGPUError::Lost,
+      DeviceError::OutOfMemory => WebGPUError::OutOfMemory,
+      DeviceError::Invalid => WebGPUError::Validation(err.to_string()),
+    }
+  }
+}
+
+impl From<BufferAccessError> for WebGPUError {
+  fn from(err: BufferAccessError) -> Self {
+    match err {
+      BufferAccessError::Device(err) => err.into(),
+      err => WebGPUError::Validation(err.to_string()),
+    }
+  }
+}
+
+impl From<CreateBindGroupLayoutError> for WebGPUError {
+  fn from(err: CreateBindGroupLayoutError) -> Self {
+    match err {
+      CreateBindGroupLayoutError::Device(err) => err.into(),
+      err => WebGPUError::Validation(err.to_string()),
+    }
+  }
+}
+
+impl From<CreatePipelineLayoutError> for WebGPUError {
+  fn from(err: CreatePipelineLayoutError) -> Self {
+    match err {
+      CreatePipelineLayoutError::Device(err) => err.into(),
+      err => WebGPUError::Validation(err.to_string()),
+    }
+  }
+}
+
+impl From<CreateBindGroupError> for WebGPUError {
+  fn from(err: CreateBindGroupError) -> Self {
+    match err {
+      CreateBindGroupError::Device(err) => err.into(),
+      err => WebGPUError::Validation(err.to_string()),
+    }
+  }
+}
+
+impl From<RenderBundleError> for WebGPUError {
+  fn from(err: RenderBundleError) -> Self {
+    WebGPUError::Validation(err.to_string())
+  }
+}
+
+impl From<CreateRenderBundleError> for WebGPUError {
+  fn from(err: CreateRenderBundleError) -> Self {
+    WebGPUError::Validation(err.to_string())
+  }
+}
+
+impl From<CommandAllocatorError> for WebGPUError {
+  fn from(err: CommandAllocatorError) -> Self {
+    match err {
+      CommandAllocatorError::Device(err) => err.into(),
+    }
+  }
+}
+
+impl From<CopyError> for WebGPUError {
+  fn from(err: CopyError) -> Self {
+    WebGPUError::Validation(err.to_string())
+  }
+}
+
+impl From<CommandEncoderError> for WebGPUError {
+  fn from(err: CommandEncoderError) -> Self {
+    WebGPUError::Validation(err.to_string())
+  }
+}
+
+impl From<QueryError> for WebGPUError {
+  fn from(err: QueryError) -> Self {
+    WebGPUError::Validation(err.to_string())
+  }
+}
+
+impl From<ComputePassError> for WebGPUError {
+  fn from(err: ComputePassError) -> Self {
+    WebGPUError::Validation(err.to_string())
+  }
+}
+
+impl From<CreateComputePipelineError> for WebGPUError {
+  fn from(err: CreateComputePipelineError) -> Self {
+    match err {
+      CreateComputePipelineError::Device(err) => err.into(),
+      err => WebGPUError::Validation(err.to_string()),
+    }
+  }
+}
+
+impl From<GetBindGroupLayoutError> for WebGPUError {
+  fn from(err: GetBindGroupLayoutError) -> Self {
+    WebGPUError::Validation(err.to_string())
+  }
+}
+
+impl From<CreateRenderPipelineError> for WebGPUError {
+  fn from(err: CreateRenderPipelineError) -> Self {
+    match err {
+      CreateRenderPipelineError::Device(err) => err.into(),
+      err => WebGPUError::Validation(err.to_string()),
+    }
+  }
+}
+
+impl From<RenderPassError> for WebGPUError {
+  fn from(err: RenderPassError) -> Self {
+    WebGPUError::Validation(err.to_string())
+  }
+}
+
+impl From<CreateSamplerError> for WebGPUError {
+  fn from(err: CreateSamplerError) -> Self {
+    match err {
+      CreateSamplerError::Device(err) => err.into(),
+      err => WebGPUError::Validation(err.to_string()),
+    }
+  }
+}
+
+impl From<CreateShaderModuleError> for WebGPUError {
+  fn from(err: CreateShaderModuleError) -> Self {
+    match err {
+      CreateShaderModuleError::Device(err) => err.into(),
+      err => WebGPUError::Validation(err.to_string()),
+    }
+  }
+}
+
+impl From<CreateTextureError> for WebGPUError {
+  fn from(err: CreateTextureError) -> Self {
+    match err {
+      CreateTextureError::Device(err) => err.into(),
+      err => WebGPUError::Validation(err.to_string()),
+    }
+  }
+}
+
+impl From<CreateTextureViewError> for WebGPUError {
+  fn from(err: CreateTextureViewError) -> Self {
+    WebGPUError::Validation(err.to_string())
+  }
+}
+
+impl From<CreateQuerySetError> for WebGPUError {
+  fn from(err: CreateQuerySetError) -> Self {
+    match err {
+      CreateQuerySetError::Device(err) => err.into(),
+      err => WebGPUError::Validation(err.to_string()),
+    }
+  }
+}
+
+impl From<QueueSubmitError> for WebGPUError {
+  fn from(err: QueueSubmitError) -> Self {
+    match err {
+      QueueSubmitError::Queue(err) => err.into(),
+      err => WebGPUError::Validation(err.to_string()),
+    }
+  }
+}
+
+impl From<QueueWriteError> for WebGPUError {
+  fn from(err: QueueWriteError) -> Self {
+    match err {
+      QueueWriteError::Queue(err) => err.into(),
+      err => WebGPUError::Validation(err.to_string()),
+    }
+  }
+}
+
+#[derive(Debug)]
+pub struct DOMExceptionOperationError {
+  pub msg: String,
+}
+
+impl DOMExceptionOperationError {
+  pub fn new(msg: &str) -> Self {
+    DOMExceptionOperationError {
+      msg: msg.to_string(),
+    }
+  }
+}
+
+impl fmt::Display for DOMExceptionOperationError {
+  fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+    f.pad(&self.msg)
+  }
+}
+
+impl std::error::Error for DOMExceptionOperationError {}
+
+pub fn get_error_class_name(e: &AnyError) -> Option<&'static str> {
+  e.downcast_ref::<DOMExceptionOperationError>()
+    .map(|_| "DOMExceptionOperationError")
+}