feat(twoslash-vue): support cut-before (#41)

packages/twoslash-vue/src/index.ts

@@ -201,7 +201,7 @@ export function createTwoslasher(createOptions: CreateTwoslashVueOptions = {}):
       ...sourceMeta.removals,
       ...result.meta.removals
         .map((r) => {
-          const start = map.toSourceOffset(r[0])?.[0]
+          const start = map.toSourceOffset(r[0])?.[0] ?? code.match(/(?<=<script[\s\S]*>\s)/)?.index
           const end = map.toSourceOffset(r[1])?.[0]
           if (start == null || end == null || start < 0 || end < 0 || start >= end)
             return undefined

packages/twoslash-vue/test/fixtures/cut-around-vue.vue

@@ -0,0 +1,23 @@
+<script setup lang="ts">
+import { ref } from "vue"
+// ---cut-before---
+interface Foo {
+  bar: string
+}
+// ---cut---
+const { hi } = useFoo()
+function useFoo() {
+  const hi = ref<Foo>({ bar: "hello" })
+  return { hi }
+}
+// ---cut-after---
+declare const foo: {
+  hi: string
+}
+</script>
+
+<template>
+  <div>
+    {{ hi.bar }}
+  </div>
+</template>