(fix) emitDts for components with no script (#1114)

* (fix) emitDts for components with no script

* format

* format

* (fix) robust tsx replace strategy

Author: bluwy

packages/svelte2tsx/src/svelte2tsx/index.ts

@@ -401,12 +401,14 @@ declare function __sveltets_1_createSvelteComponentTyped<Props, Events, Slots>(
         );
         let code = str.toString();
         // Remove all tsx occurences and the template part from the output
-        code =
-            code
-                .substr(0, code.indexOf('\n() => (<>'))
-                // prepended before each script block
-                .replace('<></>;', '')
-                .replace('<></>;', '') + code.substr(code.lastIndexOf('</>);') + '</>);'.length);
+        code = code
+            // prepended before each script block
+            .replace('<></>;', '')
+            .replace('<></>;', '')
+            // tsx in render function
+            .replace(/<>.*<\/>/s, '')
+            .replace('\n() => ();', '');
+
         return {
             code
         };

packages/svelte2tsx/test/emitDts/samples/javascript/expected/TestNoScript.svelte.d.ts

@@ -0,0 +1,27 @@
+/** @typedef {typeof __propDef.props}  TestNoScriptProps */
+/** @typedef {typeof __propDef.events}  TestNoScriptEvents */
+/** @typedef {typeof __propDef.slots}  TestNoScriptSlots */
+export default class TestNoScript extends SvelteComponentTyped<{}, {
+    click: MouseEvent;
+} & {
+    [evt: string]: CustomEvent<any>;
+}, {
+    default: {};
+}> {
+}
+export type TestNoScriptProps = typeof __propDef.props;
+export type TestNoScriptEvents = typeof __propDef.events;
+export type TestNoScriptSlots = typeof __propDef.slots;
+import { SvelteComponentTyped } from "svelte";
+declare const __propDef: {
+    props: {};
+    events: {
+        click: MouseEvent;
+    } & {
+        [evt: string]: CustomEvent<any>;
+    };
+    slots: {
+        default: {};
+    };
+};
+export {};

packages/svelte2tsx/test/emitDts/samples/javascript/src/TestNoScript.svelte

@@ -0,0 +1,3 @@
+<div on:click>
+    <slot />
+</div>

packages/svelte2tsx/test/svelte2tsx/samples/creates-no-script-dts/expected.tsx

@@ -0,0 +1,16 @@
+import { SvelteComponentTyped } from "svelte"
+
+declare function __sveltets_1_createSvelteComponentTyped<Props, Events, Slots>(
+    render: {props: Props, events: Events, slots: Slots }
+): SvelteComponentConstructor<SvelteComponentTyped<Props, Events, Slots>,Svelte2TsxComponentConstructorParameters<Props>>;
+
+function render() {
+
+return { props: {}, slots: {'default': {}}, getters: {}, events: {'click':__sveltets_1_mapElementEvent('click')} }}
+const __propDef = __sveltets_1_partial(__sveltets_1_with_any_event(render()));
+/** @typedef {typeof __propDef.props}  InputProps */
+/** @typedef {typeof __propDef.events}  InputEvents */
+/** @typedef {typeof __propDef.slots}  InputSlots */
+
+export default class Input extends __sveltets_1_createSvelteComponentTyped(__sveltets_1_partial(__sveltets_1_with_any_event(render()))) {
+}

packages/svelte2tsx/test/svelte2tsx/samples/creates-no-script-dts/input.svelte

@@ -0,0 +1,4 @@
+<button on:click><slot /></button>
+{#await Promise.resolve(0) then n}
+  {n}
+{/await}