examples: upgrade to new version of dioxus core.

also add the inline_props macro

packages/core-macro/src/inlineprops.rs

@@ -0,0 +1,102 @@
+use proc_macro2::{Span, TokenStream as TokenStream2};
+use quote::{quote, ToTokens, TokenStreamExt};
+use syn::{
+    parse::{Parse, ParseStream},
+    punctuated::Punctuated,
+    token, Block, FnArg, Generics, Ident, Result, ReturnType, Token, Visibility,
+};
+
+pub struct InlinePropsBody {
+    pub vis: syn::Visibility,
+    pub fn_token: Token![fn],
+    pub ident: Ident,
+    pub cx_token: Ident,
+    pub generics: Generics,
+    pub paren_token: token::Paren,
+    pub inputs: Punctuated<FnArg, Token![,]>,
+    // pub fields: FieldsNamed,
+    pub output: ReturnType,
+    pub block: Box<Block>,
+}
+
+/// The custom rusty variant of parsing rsx!
+impl Parse for InlinePropsBody {
+    fn parse(input: ParseStream) -> Result<Self> {
+        let vis: Visibility = input.parse()?;
+
+        let fn_token = input.parse()?;
+        let ident = input.parse()?;
+        let generics = input.parse()?;
+
+        let content;
+        let paren_token = syn::parenthesized!(content in input);
+
+        let cx_token: Ident = content.parse()?;
+        let _: Token![:] = content.parse()?;
+        let _: Ident = content.parse()?;
+        let _: Result<Token![,]> = content.parse();
+
+        let inputs = syn::punctuated::Punctuated::parse_terminated(&content)?;
+
+        let output = input.parse()?;
+
+        let block = input.parse()?;
+
+        Ok(Self {
+            vis,
+            fn_token,
+            ident,
+            generics,
+            paren_token,
+            inputs,
+            output,
+            block,
+            cx_token,
+        })
+    }
+}
+
+/// Serialize the same way, regardless of flavor
+impl ToTokens for InlinePropsBody {
+    fn to_tokens(&self, out_tokens: &mut TokenStream2) {
+        let Self {
+            vis,
+            ident,
+            generics,
+            inputs,
+            output,
+            block,
+            cx_token,
+            ..
+        } = self;
+
+        let fields = inputs.iter().map(|f| {
+            quote! { #vis #f }
+        });
+
+        let struct_name = Ident::new(&format!("{}Props", ident), Span::call_site());
+
+        let field_names = inputs.iter().filter_map(|f| match f {
+            FnArg::Receiver(_) => todo!(),
+            FnArg::Typed(t) => Some(&t.pat),
+        });
+
+        let modifiers = if generics.params.is_empty() {
+            quote! { #[derive(Props, PartialEq)] }
+        } else {
+            quote! { #[derive(PartialEq)] }
+        };
+
+        out_tokens.append_all(quote! {
+            #modifiers
+            #vis struct #struct_name #generics {
+                #(#fields),*
+            }
+
+            #vis fn #ident #generics (#cx_token: Scope<#struct_name>) #output {
+                let #struct_name { #(#field_names),* } = &cx.props;
+                #block
+            }
+        });
+    }
+}

packages/core-macro/src/lib.rs

@@ -2,8 +2,8 @@ use proc_macro::TokenStream;
 use quote::ToTokens;
 use syn::parse_macro_input;
 
-pub(crate) mod htm;
 pub(crate) mod ifmt;
+pub(crate) mod inlineprops;
 pub(crate) mod props;
 pub(crate) mod router;
 pub(crate) mod rsx;
@@ -214,3 +214,37 @@ pub fn routable_derive(input: proc_macro::TokenStream) -> proc_macro::TokenStrea
     let input = parse_macro_input!(input as Routable);
     routable_derive_impl(input).into()
 }
+
+/// Derive props for a component within the component definition.
+///
+/// This macro provides a simple transformation from `Scope<{}>` to `Scope<P>`,
+/// removing some boilerplate when defining props.
+///
+/// You don't *need* to use this macro at all, but it can be helpful in cases where
+/// you would be repeating a lot of the usual Rust boilerplate.
+///
+/// # Example
+/// ```
+/// #[inline_props]
+/// fn app(cx: Scope<{ bob: String }>) -> Element {
+///     cx.render(rsx!("hello, {bob}"))
+/// }  
+///
+/// // is equivalent to
+///
+/// #[derive(PartialEq, Props)]
+/// struct AppProps {
+///     bob: String,
+/// }  
+///
+/// fn app(cx: Scope<AppProps>) -> Element {
+///     cx.render(rsx!("hello, {bob}"))
+/// }  
+/// ```
+#[proc_macro_attribute]
+pub fn inline_props(_args: proc_macro::TokenStream, s: TokenStream) -> TokenStream {
+    match syn::parse::<inlineprops::InlinePropsBody>(s) {
+        Err(e) => e.to_compile_error().into(),
+        Ok(s) => s.to_token_stream().into(),
+    }
+}