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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /servo/components/style_derive/to_resolved_value.rs | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'servo/components/style_derive/to_resolved_value.rs')
-rw-r--r-- | servo/components/style_derive/to_resolved_value.rs | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/servo/components/style_derive/to_resolved_value.rs b/servo/components/style_derive/to_resolved_value.rs new file mode 100644 index 0000000000..e049f91152 --- /dev/null +++ b/servo/components/style_derive/to_resolved_value.rs @@ -0,0 +1,52 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at https://mozilla.org/MPL/2.0/. */ + +use derive_common::cg; +use proc_macro2::TokenStream; +use syn::DeriveInput; +use synstructure::BindStyle; +use to_computed_value; + +pub fn derive(input: DeriveInput) -> TokenStream { + let trait_impl = |from_body, to_body| { + quote! { + #[inline] + fn from_resolved_value(from: Self::ResolvedValue) -> Self { + #from_body + } + + #[inline] + fn to_resolved_value( + self, + context: &crate::values::resolved::Context, + ) -> Self::ResolvedValue { + #to_body + } + } + }; + + to_computed_value::derive_to_value( + input, + parse_quote!(crate::values::resolved::ToResolvedValue), + parse_quote!(ResolvedValue), + BindStyle::Move, + |binding| { + let attrs = cg::parse_field_attrs::<ResolvedValueAttrs>(&binding.ast()); + to_computed_value::ToValueAttrs { + field_bound: attrs.field_bound, + no_field_bound: attrs.no_field_bound, + } + }, + |binding| quote!(crate::values::resolved::ToResolvedValue::from_resolved_value(#binding)), + |binding| quote!(crate::values::resolved::ToResolvedValue::to_resolved_value(#binding, context)), + trait_impl, + ) +} + +#[derive(Default, FromField)] +#[darling(attributes(resolve), default)] +struct ResolvedValueAttrs { + field_bound: bool, + no_field_bound: bool, +} |