73 lines
2.3 KiB
Rust
73 lines
2.3 KiB
Rust
use proc_macro::TokenStream;
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use quote::quote;
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use syn::{parse_macro_input, DeriveInput};
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pub fn derive_into_plot(input: TokenStream) -> TokenStream {
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let ast = parse_macro_input!(input as DeriveInput);
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let type_name = &ast.ident;
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let (impl_generics, type_generics, where_clause) = ast.generics.split_for_impl();
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let expanded = quote! {
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impl #impl_generics gpui::IntoElement for #type_name #type_generics #where_clause {
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type Element = Self;
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fn into_element(self) -> Self::Element {
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self
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}
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}
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impl #impl_generics gpui::Element for #type_name #type_generics #where_clause {
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type RequestLayoutState = ();
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type PrepaintState = ();
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fn id(&self) -> Option<gpui::ElementId> {
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None
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}
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fn source_location(&self) -> Option<&'static std::panic::Location<'static>> {
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None
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}
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fn request_layout(
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&mut self,
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_: Option<&gpui::GlobalElementId>,
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_: Option<&gpui::InspectorElementId>,
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window: &mut gpui::Window,
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cx: &mut gpui::App,
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) -> (gpui::LayoutId, Self::RequestLayoutState) {
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let style = gpui::Style {
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size: gpui::Size::full(),
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..Default::default()
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};
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(window.request_layout(style, None, cx), ())
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}
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fn prepaint(
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&mut self,
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_: Option<&gpui::GlobalElementId>,
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_: Option<&gpui::InspectorElementId>,
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_: gpui::Bounds<gpui::Pixels>,
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_: &mut Self::RequestLayoutState,
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_: &mut gpui::Window,
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_: &mut gpui::App,
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) -> Self::PrepaintState {
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}
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fn paint(
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&mut self,
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_: Option<&gpui::GlobalElementId>,
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_: Option<&gpui::InspectorElementId>,
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bounds: gpui::Bounds<gpui::Pixels>,
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_: &mut Self::RequestLayoutState,
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_: &mut Self::PrepaintState,
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window: &mut gpui::Window,
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cx: &mut gpui::App,
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) {
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<Self as Plot>::paint(self, bounds, window, cx)
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}
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}
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};
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TokenStream::from(expanded)
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}
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