From 0de2182acc4072610fa51d45efeee920603dfb4c Mon Sep 17 00:00:00 2001
From: ComputerGuy <63362464+Ocean-OS@users.noreply.github.com>
Date: Mon, 16 Jun 2025 21:14:04 -0700
Subject: [PATCH] `SelectorList`, `<svelte:whatever />`

---
 packages/svelte/src/compiler/print/index.js | 166 +++++++++++++++++++-
 1 file changed, 165 insertions(+), 1 deletion(-)

diff --git a/packages/svelte/src/compiler/print/index.js b/packages/svelte/src/compiler/print/index.js
index 213fa3b1f8..ab5180fe6e 100644
--- a/packages/svelte/src/compiler/print/index.js
+++ b/packages/svelte/src/compiler/print/index.js
@@ -261,7 +261,7 @@ const visitors = {
 
 	ConstTag(node, context) {
 		context.write('{@const ');
-		context.visit(node.declaration); // TODO does this work?
+		context.visit(node.declaration);
 		context.write('}');
 	},
 
@@ -477,6 +477,18 @@ const visitors = {
 		context.visit(node.block);
 	},
 
+	SelectorList(node, context) {
+		let started = false;
+		for (const selector of node.children) {
+			if (started) {
+				context.write(', ');
+			}
+
+			context.visit(selector);
+			started = true;
+		}
+	},
+
 	SlotElement(node, context) {
 		context.write('<slot');
 
@@ -568,6 +580,158 @@ const visitors = {
 		context.write('</style>');
 	},
 
+	SvelteBoundary(node, context) {
+		context.write('<svelte:boundary');
+
+		for (const attribute of node.attributes) {
+			// TODO handle multiline
+			context.write(' ');
+			context.visit(attribute);
+		}
+
+		if (node.fragment) {
+			context.write('>');
+			context.visit(node.fragment);
+			context.write(`</svelte:boundary>`);
+		} else {
+			context.write('/>');
+		}
+	},
+
+	SvelteComponent(node, context) {
+		context.write('<svelte:component');
+
+		context.write('this={');
+		context.visit(node.expression);
+		context.write('} ');
+
+		for (const attribute of node.attributes) {
+			// TODO handle multiline
+			context.write(' ');
+			context.visit(attribute);
+		}
+
+		if (node.fragment) {
+			context.write('>');
+			context.visit(node.fragment);
+			context.write(`</svelte:component>`);
+		} else {
+			context.write('/>');
+		}
+	},
+
+	SvelteDocument(node, context) {
+		context.write('<svelte:document');
+
+		for (const attribute of node.attributes) {
+			// TODO handle multiline
+			context.write(' ');
+			context.visit(attribute);
+		}
+
+		if (node.fragment) {
+			context.write('>');
+			context.visit(node.fragment);
+			context.write(`</svelte:document>`);
+		} else {
+			context.write('/>');
+		}
+	},
+
+	SvelteElement(node, context) {
+		context.write('<svelte:element');
+
+		context.write('this={');
+		context.visit(node.expression);
+		context.write('} ');
+
+		for (const attribute of node.attributes) {
+			// TODO handle multiline
+			context.write(' ');
+			context.visit(attribute);
+		}
+
+		if (node.fragment) {
+			context.write('>');
+			context.visit(node.fragment);
+			context.write(`</svelte:element>`);
+		} else {
+			context.write('/>');
+		}
+	},
+
+	SvelteFragment(node, context) {
+		context.write('<svelte:fragment');
+
+		for (const attribute of node.attributes) {
+			// TODO handle multiline
+			context.write(' ');
+			context.visit(attribute);
+		}
+
+		if (node.fragment) {
+			context.write('>');
+			context.visit(node.fragment);
+			context.write(`</svelte:fragment>`);
+		} else {
+			context.write('/>');
+		}
+	},
+
+	SvelteHead(node, context) {
+		context.write('<svelte:head');
+
+		for (const attribute of node.attributes) {
+			// TODO handle multiline
+			context.write(' ');
+			context.visit(attribute);
+		}
+
+		if (node.fragment) {
+			context.write('>');
+			context.visit(node.fragment);
+			context.write(`</svelte:head>`);
+		} else {
+			context.write('/>');
+		}
+	},
+
+	SvelteSelf(node, context) {
+		context.write('<svelte:self');
+
+		for (const attribute of node.attributes) {
+			// TODO handle multiline
+			context.write(' ');
+			context.visit(attribute);
+		}
+
+		if (node.fragment) {
+			context.write('>');
+			context.visit(node.fragment);
+			context.write(`</svelte:self>`);
+		} else {
+			context.write('/>');
+		}
+	},
+
+	SvelteWindow(node, context) {
+		context.write('<svelte:window');
+
+		for (const attribute of node.attributes) {
+			// TODO handle multiline
+			context.write(' ');
+			context.visit(attribute);
+		}
+
+		if (node.fragment) {
+			context.write('>');
+			context.visit(node.fragment);
+			context.write(`</svelte:window>`);
+		} else {
+			context.write('/>');
+		}
+	},
+
 	Text(node, context) {
 		context.write(node.data);
 	},