62 lines
1.6 KiB
Rust
62 lines
1.6 KiB
Rust
use proc_macro2::TokenStream;
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use quote::{format_ident, quote};
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use syn::Ident;
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use crate::nest::{Nest, NestId};
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#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
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pub struct LayoutId(pub usize);
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#[derive(Debug)]
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pub struct Layout {
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pub layout_name: Ident,
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pub comp: Ident,
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pub props_name: Ident,
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pub active_nests: Vec<NestId>,
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}
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impl Layout {
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pub fn routable_match(&self, nests: &[Nest]) -> TokenStream {
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let props_name = &self.props_name;
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let comp_name = &self.comp;
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let dynamic_segments = self
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.active_nests
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.iter()
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.flat_map(|id| nests[id.0].dynamic_segments());
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quote! {
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let comp = #props_name { #(#dynamic_segments,)* };
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let cx = cx.bump().alloc(Scoped {
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props: cx.bump().alloc(comp),
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scope: cx,
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});
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#comp_name(cx)
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}
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}
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}
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impl Layout {
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pub fn parse(input: syn::parse::ParseStream, active_nests: Vec<NestId>) -> syn::Result<Self> {
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// Then parse the layout name
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let _ = input.parse::<syn::Token![,]>();
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let layout_name: syn::Ident = input.parse()?;
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// Then parse the component name
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let _ = input.parse::<syn::Token![,]>();
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let comp: Ident = input.parse()?;
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// Then parse the props name
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let _ = input.parse::<syn::Token![,]>();
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let props_name: Ident = input
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.parse()
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.unwrap_or_else(|_| format_ident!("{}Props", comp.to_string()));
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Ok(Self {
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layout_name,
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comp,
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props_name,
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active_nests,
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})
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}
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}
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