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@@ -11,16 +11,16 @@ use syn::{
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// =======================================
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// Parse the VNode::Element type
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// =======================================
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-pub struct Element<const AS: HtmlOrRsx> {
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+pub struct Element {
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name: Ident,
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key: Option<LitStr>,
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- attributes: Vec<ElementAttr<AS>>,
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- listeners: Vec<ElementAttr<AS>>,
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- children: Vec<BodyNode<AS>>,
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+ attributes: Vec<ElementAttr>,
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+ listeners: Vec<ElementAttr>,
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+ children: Vec<BodyNode>,
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_is_static: bool,
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}
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-impl Parse for Element<AS_RSX> {
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+impl Parse for Element {
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fn parse(stream: ParseStream) -> Result<Self> {
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let name = Ident::parse(stream)?;
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@@ -28,147 +28,87 @@ impl Parse for Element<AS_RSX> {
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let content: ParseBuffer;
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syn::braced!(content in stream);
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- let mut attributes: Vec<ElementAttr<AS_RSX>> = vec![];
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- let mut listeners: Vec<ElementAttr<AS_RSX>> = vec![];
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- let mut children: Vec<BodyNode<AS_RSX>> = vec![];
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+ let mut attributes: Vec<ElementAttr> = vec![];
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+ let mut listeners: Vec<ElementAttr> = vec![];
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+ let mut children: Vec<BodyNode> = vec![];
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let mut key = None;
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let mut el_ref = None;
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- 'parsing: loop {
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- // [1] Break if empty
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- if content.is_empty() {
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- break 'parsing;
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- }
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-
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+ while !content.is_empty() {
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if content.peek(Ident) && content.peek2(Token![:]) && !content.peek3(Token![:]) {
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- parse_rsx_element_field(
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- &content,
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- &mut attributes,
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- &mut listeners,
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- &mut key,
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- &mut el_ref,
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- name.clone(),
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- )?;
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- } else {
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- children.push(content.parse::<BodyNode<AS_RSX>>()?);
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- }
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-
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- // consume comma if it exists
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- // we don't actually care if there *are* commas after elements/text
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- if content.peek(Token![,]) {
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- let _ = content.parse::<Token![,]>();
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- }
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- }
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-
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- Ok(Self {
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- key,
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- name,
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- attributes,
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- children,
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- listeners,
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- _is_static: false,
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- })
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- }
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-}
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+ let name = Ident::parse_any(stream)?;
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+ let name_str = name.to_string();
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+ stream.parse::<Token![:]>()?;
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-impl Parse for Element<AS_HTML> {
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- fn parse(stream: ParseStream) -> Result<Self> {
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- let _l_tok = stream.parse::<Token![<]>()?;
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- let el_name = Ident::parse(stream)?;
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-
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- let mut attributes: Vec<ElementAttr<AS_HTML>> = vec![];
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- let mut listeners: Vec<ElementAttr<AS_HTML>> = vec![];
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- let mut children: Vec<BodyNode<AS_HTML>> = vec![];
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- let key = None;
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-
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- while !stream.peek(Token![>]) {
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- // self-closing
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- if stream.peek(Token![/]) {
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- stream.parse::<Token![/]>()?;
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- stream.parse::<Token![>]>()?;
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+ if name_str.starts_with("on") {
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+ if stream.peek(token::Brace) {
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+ let content;
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+ syn::braced!(content in stream);
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- return Ok(Self {
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- name: el_name,
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- key: None,
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- attributes,
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- _is_static: false,
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- listeners,
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- children,
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- });
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- }
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-
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- let name = Ident::parse_any(stream)?;
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- let name_str = name.to_string();
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- stream.parse::<Token![=]>()?;
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- if name_str.starts_with("on") {
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- let inner;
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- syn::braced!(inner in stream);
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- let toks = inner.parse::<Expr>()?;
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- let ty = AttrType::EventTokens(toks);
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- listeners.push(ElementAttr {
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- element_name: el_name.clone(),
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- name,
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- value: ty,
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- namespace: None,
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- })
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- } else {
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- match name_str.as_str() {
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- "style" => {}
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- "key" => {}
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- _ => {
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- // "classes" | "namespace" | "ref" | _ => {
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- let ty = if stream.peek(LitStr) {
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- let rawtext = stream.parse::<LitStr>().unwrap();
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- AttrType::BumpText(rawtext)
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- } else {
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- // like JSX, we expect raw expressions
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- let inner;
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- syn::braced!(inner in stream);
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- let toks = inner.parse::<Expr>()?;
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- AttrType::FieldTokens(toks)
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- };
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- attributes.push(ElementAttr {
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- element_name: el_name.clone(),
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+ listeners.push(ElementAttr::EventTokens {
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name,
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- value: ty,
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- namespace: None,
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- })
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+ tokens: content.parse()?,
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+ });
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+ } else {
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+ listeners.push(ElementAttr::EventClosure {
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+ name,
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+ closure: content.parse()?,
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+ });
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+ };
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+ } else {
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+ match name_str.as_str() {
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+ "key" => {
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+ key = Some(stream.parse()?);
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+ }
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+ "classes" => {
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+ todo!("custom class list not supported")
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+ }
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+ "namespace" => {
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+ todo!("custom namespace not supported")
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+ }
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+ "node_ref" => {
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+ el_ref = Some(stream.parse::<Expr>()?);
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+ }
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+ _ => {
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+ if stream.peek(LitStr) {
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+ listeners.push(ElementAttr::AttrText {
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+ name,
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+ value: content.parse()?,
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+ });
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+ } else {
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+ listeners.push(ElementAttr::AttrExpression {
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+ name,
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+ value: content.parse()?,
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+ });
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+ }
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+ }
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}
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}
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- };
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- }
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+ } else if content.peek(LitStr) && content.peek2(Token![:]) {
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+ let name = content.parse::<LitStr>()?;
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+ content.parse::<Token![:]>()?;
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- stream.parse::<Token![>]>()?;
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-
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- 'parsing: loop {
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- if stream.peek(Token![<]) && stream.peek2(Token![/]) {
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- break 'parsing;
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+ if content.peek(LitStr) {
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+ let value = content.parse::<LitStr>()?;
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+ attributes.push(ElementAttr::CustomAttrText { name, value });
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+ } else {
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+ let value = content.parse::<Expr>()?;
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+ attributes.push(ElementAttr::CustomAttrExpression { name, value });
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+ }
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+ } else {
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+ children.push(content.parse::<BodyNode>()?);
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}
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- // [1] Break if empty
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- if stream.is_empty() {
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- break 'parsing;
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+ // consume comma if it exists
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+ // we don't actually care if there *are* commas after elements/text
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+ if content.peek(Token![,]) {
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+ let _ = content.parse::<Token![,]>();
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}
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-
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- children.push(stream.parse::<BodyNode<AS_HTML>>()?);
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}
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- // closing element
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- stream.parse::<Token![<]>()?;
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- stream.parse::<Token![/]>()?;
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-
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- let close = Ident::parse_any(stream)?;
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- if close != el_name {
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- return Err(Error::new_spanned(
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- close,
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- "closing element does not match opening",
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- ));
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- }
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- stream.parse::<Token![>]>()?;
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-
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Ok(Self {
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key,
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- name: el_name,
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+ name,
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attributes,
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children,
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listeners,
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@@ -177,12 +117,17 @@ impl Parse for Element<AS_HTML> {
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}
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}
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-impl<const AS: HtmlOrRsx> ToTokens for Element<AS> {
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+impl ToTokens for Element {
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fn to_tokens(&self, tokens: &mut TokenStream2) {
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let name = &self.name;
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- let attr = &self.attributes;
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let childs = &self.children;
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let listeners = &self.listeners;
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+
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+ let attr = self.attributes.iter().map(|x| ElementAttrNamed {
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+ attr: x,
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+ el_name: name,
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+ });
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+
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let key = match &self.key {
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Some(ty) => quote! { Some(format_args_f!(#ty)) },
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None => quote! { None },
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@@ -200,164 +145,73 @@ impl<const AS: HtmlOrRsx> ToTokens for Element<AS> {
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}
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}
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-/// =======================================
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-/// Parse a VElement's Attributes
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-/// =======================================
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-struct ElementAttr<const AS: HtmlOrRsx> {
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- element_name: Ident,
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- name: Ident,
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- value: AttrType,
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- namespace: Option<String>,
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-}
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+enum ElementAttr {
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+ // attribute: "valuee {}"
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+ AttrText { name: Ident, value: LitStr },
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-enum AttrType {
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- BumpText(LitStr),
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- FieldTokens(Expr),
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- EventTokens(Expr),
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- Event(ExprClosure),
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-}
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-
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-// We parse attributes and dump them into the attribute vec
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-// This is because some tags might be namespaced (IE style)
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-// These dedicated tags produce multiple name-spaced attributes
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-fn parse_rsx_element_field(
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- stream: ParseStream,
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- attrs: &mut Vec<ElementAttr<AS_RSX>>,
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- listeners: &mut Vec<ElementAttr<AS_RSX>>,
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- key: &mut Option<LitStr>,
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- el_ref: &mut Option<Expr>,
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- element_name: Ident,
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-) -> Result<()> {
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- let name = Ident::parse_any(stream)?;
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- let name_str = name.to_string();
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- stream.parse::<Token![:]>()?;
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-
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- // Return early if the field is a listener
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- if name_str.starts_with("on") {
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- // remove the "on" bit
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- let ty = if stream.peek(token::Brace) {
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- let content;
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- syn::braced!(content in stream);
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-
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- // Try to parse directly as a closure
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- let fork = content.fork();
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- if let Ok(event) = fork.parse::<ExprClosure>() {
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- content.advance_to(&fork);
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- AttrType::Event(event)
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- } else {
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- AttrType::EventTokens(content.parse()?)
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- }
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- } else {
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- AttrType::Event(stream.parse()?)
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- };
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- listeners.push(ElementAttr {
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- name,
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- value: ty,
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- namespace: None,
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- element_name,
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- });
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- return Ok(());
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- }
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+ // attribute: true,
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+ AttrExpression { name: Ident, value: Expr },
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- let ty: AttrType = match name_str.as_str() {
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- // short circuit early if style is using the special syntax
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- "style" if stream.peek(token::Brace) => {
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- let inner;
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- syn::braced!(inner in stream);
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+ // "attribute": "value {}"
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+ CustomAttrText { name: LitStr, value: LitStr },
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- while !inner.is_empty() {
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- let name = Ident::parse_any(&inner)?;
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- inner.parse::<Token![:]>()?;
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- let ty = if inner.peek(LitStr) {
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- let rawtext = inner.parse::<LitStr>().unwrap();
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- AttrType::BumpText(rawtext)
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- } else {
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- let toks = inner.parse::<Expr>()?;
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- AttrType::FieldTokens(toks)
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- };
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- if inner.peek(Token![,]) {
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- let _ = inner.parse::<Token![,]>();
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- }
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- attrs.push(ElementAttr {
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- name,
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- value: ty,
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- namespace: Some("style".to_string()),
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- element_name: element_name.clone(),
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- });
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- }
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+ // "attribute": true,
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+ CustomAttrExpression { name: LitStr, value: Expr },
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- return Ok(());
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- }
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- "key" => {
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- *key = Some(stream.parse::<LitStr>()?);
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- return Ok(());
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- }
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- "classes" => {
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- todo!("custom class list not supported")
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- }
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- "namespace" => {
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- todo!("custom namespace not supported")
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- }
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- "node_ref" => {
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- *el_ref = Some(stream.parse::<Expr>()?);
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- return Ok(());
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- }
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+ // onclick: move |_| {}
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+ EventClosure { name: Ident, closure: ExprClosure },
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- // Fall through
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- _ => {
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- if stream.peek(LitStr) {
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- let rawtext = stream.parse::<LitStr>().unwrap();
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- AttrType::BumpText(rawtext)
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- } else {
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- let toks = stream.parse::<Expr>()?;
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- AttrType::FieldTokens(toks)
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- }
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- }
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- };
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+ // onclick: {}
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+ EventTokens { name: Ident, tokens: Expr },
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+}
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- // consume comma if it exists
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- // we don't actually care if there *are* commas between attrs
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- if stream.peek(Token![,]) {
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- let _ = stream.parse::<Token![,]>();
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+impl ToTokens for ElementAttr {
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+ fn to_tokens(&self, tokens: &mut TokenStream2) {
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+ // weird requirment
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+ todo!()
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}
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+}
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- attrs.push(ElementAttr {
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- name,
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- value: ty,
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- namespace: None,
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- element_name,
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- });
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- Ok(())
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+struct ElementAttrNamed<'a> {
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+ el_name: &'a Ident,
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+ attr: &'a ElementAttr,
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}
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-impl<const AS: HtmlOrRsx> ToTokens for ElementAttr<AS> {
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+impl ToTokens for ElementAttrNamed<'_> {
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fn to_tokens(&self, tokens: &mut TokenStream2) {
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- let el_name = &self.element_name;
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- let nameident = &self.name;
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+ let ElementAttrNamed { el_name, attr } = *self;
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- // TODO: wire up namespace
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- let _name_str = self.name.to_string();
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- let _namespace = match &self.namespace {
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- Some(t) => quote! { Some(#t) },
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- None => quote! { None },
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- };
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-
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- match &self.value {
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- AttrType::BumpText(value) => tokens.append_all(quote! {
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- dioxus_elements::#el_name.#nameident(__cx, format_args_f!(#value))
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- }),
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+ let toks = match attr {
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+ ElementAttr::AttrText { name, value } => {
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+ quote! {
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+ dioxus_elements::#el_name.#name(__cx, format_args_f!(#value))
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+ }
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+ }
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+ ElementAttr::AttrExpression { name, value } => {
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+ quote! {
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|
+ dioxus_elements::#el_name.#name(__cx, #value)
|
|
|
+ }
|
|
|
+ }
|
|
|
|
|
|
- AttrType::FieldTokens(exp) => tokens.append_all(quote! {
|
|
|
- dioxus_elements::#el_name.#nameident(__cx, #exp)
|
|
|
- }),
|
|
|
+ ElementAttr::CustomAttrText { name, value } => {
|
|
|
+ quote! { __cx.attr( #name, format_args_f!(#value), None, false ) }
|
|
|
+ }
|
|
|
+ ElementAttr::CustomAttrExpression { name, value } => {
|
|
|
+ quote! { __cx.attr( #name, format_args_f!(#value), None, false ) }
|
|
|
+ }
|
|
|
|
|
|
- AttrType::Event(event) => tokens.append_all(quote! {
|
|
|
- dioxus::events::on::#nameident(__cx, #event)
|
|
|
- }),
|
|
|
+ ElementAttr::EventClosure { name, closure } => {
|
|
|
+ quote! {
|
|
|
+ dioxus::events::on::#name(__cx, #closure)
|
|
|
+ }
|
|
|
+ }
|
|
|
+ ElementAttr::EventTokens { name, tokens } => {
|
|
|
+ quote! {
|
|
|
+ dioxus::events::on::#name(__cx, #tokens)
|
|
|
+ }
|
|
|
+ }
|
|
|
+ };
|
|
|
|
|
|
- AttrType::EventTokens(event) => tokens.append_all(quote! {
|
|
|
- dioxus::events::on::#nameident(__cx, #event)
|
|
|
- }),
|
|
|
- }
|
|
|
+ tokens.append_all(toks);
|
|
|
}
|
|
|
}
|