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fix: do not sort class and style that are after spread marker

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This commit is contained in:
Greg Johnston 2024-09-16 21:33:46 -04:00
parent f3dcdc057d
commit 8dc600ca02
1 changed files with 43 additions and 20 deletions
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63
leptos_macro/src/view/mod.rs
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@ -279,10 +279,25 @@ pub(crate) fn element_to_tokens(
global_class: Option<&TokenTree>,
view_marker: Option<&str>,
) -> Option<TokenStream> {
// attribute sorting:
//
// the `class` and `style` attributes overwrite individual `class:` and `style:` attributes
// when they are set. as a result, we're going to sort the attributes so that `class` and
// `style` always come before all other attributes.
node.attributes_mut().sort_by(|a, b| {
// if there's a spread marker, we don't want to move `class` or `style` before it
// so let's only sort attributes that come *before* a spread marker
let spread_position = node
.attributes()
.iter()
.position(|n| match n {
NodeAttribute::Block(node) => as_spread_attr(node).is_some(),
_ => false,
})
.unwrap_or_else(|| node.attributes().len());
// now, sort the attributes
node.attributes_mut()[0..spread_position].sort_by(|a, b| {
let key_a = match a {
NodeAttribute::Attribute(attr) => match &attr.key {
NodeName::Path(attr) => {
@ -496,6 +511,25 @@ fn is_spread_marker(node: &NodeElement<impl CustomNode>) -> bool {
}
}
fn as_spread_attr(node: &NodeBlock) -> Option<Option<&Expr>> {
if let NodeBlock::ValidBlock(block) = node {
match block.stmts.first() {
Some(Stmt::Expr(
Expr::Range(ExprRange {
start: None,
limits: RangeLimits::HalfOpen(_),
end,
..
}),
_,
)) => Some(end.as_deref()),
_ => None,
}
} else {
None
}
}
fn attribute_to_tokens(
tag_type: TagType,
node: &NodeAttribute,
@ -503,29 +537,18 @@ fn attribute_to_tokens(
is_custom: bool,
) -> TokenStream {
match node {
NodeAttribute::Block(node) => {
let dotted = if let NodeBlock::ValidBlock(block) = node {
match block.stmts.first() {
Some(Stmt::Expr(
Expr::Range(ExprRange {
start: None,
limits: RangeLimits::HalfOpen(_),
end: Some(end),
..
}),
_,
)) => Some(quote! { .add_any_attr(#end) }),
_ => None,
NodeAttribute::Block(node) => as_spread_attr(node)
.flatten()
.map(|end| {
quote! {
.add_any_attr(#end)
}
} else {
None
};
dotted.unwrap_or_else(|| {
})
.unwrap_or_else(|| {
quote! {
.add_any_attr(#[allow(unused_braces)] { #node })
}
})
}
}),
NodeAttribute::Attribute(node) => {
let name = node.key.to_string();
if name == "node_ref" {