several fixes

- Unnecessary regex escape
- Type assertion
- Removed logic that updates `prismaNamespace.ts` which seems to be unnecessary

Author: ymc9

packages/schema/src/plugins/enhancer/enhance/index.ts

@@ -26,7 +26,7 @@ import {
     type Model,
 } from '@zenstackhq/sdk/ast';
 import { getDMMF, getPrismaClientImportSpec, getPrismaVersion, type DMMF } from '@zenstackhq/sdk/prisma';
-import { upperCaseFirst } from '@zenstackhq/runtime/local-helpers';
+import { invariant, upperCaseFirst } from '@zenstackhq/runtime/local-helpers';
 import fs from 'fs';
 import path from 'path';
 import semver from 'semver';
@@ -493,32 +493,6 @@ export type Enhanced<Client> =
     private async processClientTypesNewPrismaGenerator(prismaClientDir: string, delegateInfo: DelegateInfo) {
         const project = new Project();
 
-        // remove delegate_aux_* fields from the prismaNamespace.ts
-        const internalFilename = `${prismaClientDir}/internal/prismaNamespace.ts`
-        const internalFilenameFixed = `${prismaClientDir}/internal/prismaNamespace-fixed.ts`
-        const internalSf = project.addSourceFileAtPath(internalFilename);
-        const syntaxList = internalSf.getChildren()[0];
-        if (!Node.isSyntaxList(syntaxList)) {
-            throw new PluginError(name, `Unexpected syntax list structure in ${internalFilename}`);
-        }
-        const statements: (string | StatementStructures)[] = [];
-        
-        syntaxList.getChildren().forEach((node) => {
-            if (Node.isVariableStatement(node)) {
-                statements.push(this.transformVariableStatementProps(node));
-            } else {
-                statements.push(node.getText());
-            }
-        });
-        const structure = internalSf.getStructure();
-        structure.statements = statements;
-
-        const internalSfNew = project.createSourceFile(internalFilenameFixed, structure, {
-            overwrite: true,
-        });
-        await internalSfNew.save();
-        fs.renameSync(internalFilenameFixed, internalFilename);
-
         // Create a shared file for all JSON fields type definitions
         const jsonFieldsFile = project.createSourceFile(path.join(this.outDir, 'json-types.ts'), undefined, {
             overwrite: true,
@@ -687,6 +661,7 @@ export type Enhanced<Client> =
                 if (variable.initializer) {
                     let source = variable.initializer;
                     auxFields.forEach((f) => {
+                        invariant(typeof source === 'string');
                         source = this.removeFromSource(source, f.getText());
                     });
                     variable.initializer = source;
@@ -1036,7 +1011,7 @@ export type Enhanced<Client> =
     }
 
     private trimEmptyLines(source: string): string {
-        return source.replace(/^\s*\,?[\r\n]/gm, '');
+        return source.replace(/^\s*,?[\r\n]/gm, '');
     }
 
     private get isNewPrismaClientGenerator() {