move append_styles function to dom.ts

src/compiler/compile/render_dom/index.ts

@@ -50,7 +50,7 @@ export default function dom(
 	if (should_add_css) {
 		body.push(b`
 			function ${add_css}(options) {
-				@add_css_to_component(options, "${component.stylesheet.id.replace('svelte-', '')}", "${styles}");
+				@append_styles(options, "${component.stylesheet.id.replace('svelte-', '')}", "${styles}");
 			}
 		`);
 	}

src/runtime/internal/Component.ts

@@ -1,7 +1,7 @@
 import { add_render_callback, flush, schedule_update, dirty_components } from './scheduler';
 import { current_component, set_current_component } from './lifecycle';
 import { blank_object, is_empty, is_function, run, run_all, noop } from './utils';
-import { append, children, detach, element } from './dom';
+import { children, detach } from './dom';
 import { transition_in } from './transitions';
 
 interface Fragment {
@@ -97,25 +97,6 @@ function make_dirty(component, i) {
 	component.$$.dirty[(i / 31) | 0] |= (1 << (i % 31));
 }
 
-
-let appendStylesTo = document.head;
-
-export function add_css_to_component(
-	{ customStyleTag },
-	styleSheetId: string,
-	styles: string,
-	styleId:string = `svelte-${styleSheetId}-style`) {
-
-	if (customStyleTag) appendStylesTo = customStyleTag;
-
-	if (!appendStylesTo.querySelector('#' + styleId)) {
-		const style = element('style');
-		style.id = styleId;
-		style.textContent = styles;
-		append(appendStylesTo, style);
-	}
-}
-
 export function init(component, options, instance, create_fragment, not_equal, props, dirty = [-1]) {
 	const parent_component = current_component;
 	set_current_component(component);

src/runtime/internal/dom.ts

@@ -1,5 +1,24 @@
 import { has_prop } from './utils';
 
+let appendStylesTo = document.head;
+
+export function append_styles(
+	{ customStyleTag },
+	styleSheetId: string,
+	styles: string,
+	styleId:string = `svelte-${styleSheetId}-style`) {
+
+	if (customStyleTag) appendStylesTo = customStyleTag;
+
+	if (!appendStylesTo.querySelector('#' + styleId)) {
+		const style = element('style');
+		style.id = styleId;
+		style.textContent = styles;
+		append(appendStylesTo, style);
+	}
+}
+
+
 export function append(target: Node, node: Node) {
 	target.appendChild(node);
 }