47 lines
1.0 KiB
Rust
47 lines
1.0 KiB
Rust
use crate::{DynIdx, PartialExpr};
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use quote::{quote, ToTokens, TokenStreamExt};
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use syn::parse::Parse;
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#[derive(PartialEq, Eq, Clone, Debug)]
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pub struct ExprNode {
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pub expr: PartialExpr,
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pub dyn_idx: DynIdx,
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}
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impl ExprNode {
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pub fn span(&self) -> proc_macro2::Span {
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self.expr.span()
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}
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}
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impl Parse for ExprNode {
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fn parse(input: syn::parse::ParseStream) -> syn::Result<Self> {
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Ok(Self {
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expr: input.parse()?,
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dyn_idx: DynIdx::default(),
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})
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}
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}
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impl ToTokens for ExprNode {
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fn to_tokens(&self, tokens: &mut proc_macro2::TokenStream) {
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let expr = &self.expr;
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tokens.append_all(quote! {
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{ let ___nodes = (#expr).into_dyn_node(); ___nodes }
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})
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}
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}
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#[test]
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fn no_commas() {
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use prettier_please::PrettyUnparse;
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let input = quote! {
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div {
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{label("Hello, world!")},
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}
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};
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let _expr: crate::BodyNode = syn::parse2(input).unwrap();
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println!("{}", _expr.to_token_stream().pretty_unparse());
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}
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