Add assertion that querybuilder is built by same edgedb-js version as…

… currently installed (#300)

src/index.shared.ts

@@ -49,3 +49,5 @@ export type _ICodec = codecs.ICodec;
 
 import {plugJSBI} from "./primitives/bigint";
 export const _plugJSBI = plugJSBI;
+
+export const _edgedbJsVersion = "0.0.0";

src/reflection/generate.ts

@@ -1,7 +1,7 @@
 import {fs, path, exists, readFileUtf8} from "../adapter.node";
 
 import {DirBuilder, dts, r, t} from "./builders";
-import {createClient, Client} from "../index.node";
+import {createClient, Client, _edgedbJsVersion} from "../index.node";
 
 import {ConnectConfig} from "../conUtils";
 
@@ -114,11 +114,21 @@ export async function generateQB(params: {
     // index.addExportStarFrom(null, "./castMaps", true);
     index.addExportStarFrom(null, "./syntax/external", true);
     index.addExportStarFrom(null, "./types", true, ["ts", "dts"]);
-    index.addImport({$: true}, "edgedb");
+    index.addImport({$: true, _edgedbJsVersion: true}, "edgedb");
     index.addExportFrom({createClient: true}, "edgedb");
     index.addStarImport("$syntax", "./syntax/syntax", true);
     index.addStarImport("$op", "./operators", true);
 
+    index.writeln([
+      r`\nif (_edgedbJsVersion !== "${_edgedbJsVersion}") {
+  throw new Error(
+    \`The query builder was generated by a different version of edgedb-js (v${_edgedbJsVersion})\` +
+      \` than the one currently installed (v\${_edgedbJsVersion}).\\n\` +
+      \`Run 'npx edgeql-js' to re-generate a compatible version.\\n\`
+  );
+}`,
+    ]);
+
     const spreadModules = [
       {
         name: "$op",

tools/copySyntaxToDist.sh

@@ -6,3 +6,5 @@ mv dist/__esm/syntax/*.mjs dist/syntax
 rm -r dist/__esm
 cp src/syntax/*.ts dist/syntax/
 rm -rf dist/syntax/genMock
+sed -i.bak -e "s/\"0.0.0\"/\"$npm_package_version\"/" dist/index.shared*
+rm dist/index.shared*.bak