initial commit

editor/node_modules/@lezer/generator/dist/rollup-plugin-lezer.js

@@ -0,0 +1,38 @@
+import {resolve, dirname} from "path"
+import {promises as fs} from "fs"
+import {buildParserFile} from "./index.js"
+
+export function lezer(config = {}) {
+  let built = Object.create(null)
+
+  return {
+    name: "rollup-plugin-lezer",
+
+    resolveId(source, importer) {
+      let m = /^([^\0].*\.grammar)(\.terms)?$/.exec(source)
+      if (!m) return null
+      let id = resolve(importer ? dirname(importer) : process.cwd(), m[1])
+      return m[2] ? `\0${id}.terms` : id
+    },
+
+    load(id) {
+      let m = /^\0?(.*\.grammar)(\.terms)?$/.exec(id)
+      if (!m) return null
+      if (!m[2]) this.addWatchFile(id)
+      let base = m[1]
+      let build = built[base] || (built[base] = fs.readFile(base, "utf8").then(code => buildParserFile(code, {
+        fileName: base,
+        moduleStyle: "es",
+        exportName: config.exportName,
+        warn: message => this.warn(message)
+      })))
+      return build.then(result => m[2] ? result.terms : result.parser)
+    },
+
+    watchChange(id) {
+      if (built[id]) built[id] = null
+    }
+  }
+}
+
+export const rollup = lezer