esbuild#TransformOptions TypeScript Examples

The following examples show how to use esbuild#TransformOptions. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: EsbuildPlugin.ts    From web with MIT License 5 votes vote down vote up 
private async __transformCode(
    code: string,
    filePath: string,
    loader: Loader,
    target: string | string[],
  ): Promise<string> {
    try {
      const transformOptions: TransformOptions = {
        sourcefile: filePath,
        sourcemap: 'inline',
        loader,
        target,
        // don't set any format for JS-like formats, otherwise esbuild reformats the code unnecessarily
        format: ['js', 'jsx', 'ts', 'tsx'].includes(loader) ? undefined : 'esm',
        jsxFactory: this.esbuildConfig.jsxFactory,
        jsxFragment: this.esbuildConfig.jsxFragment,
        define: this.esbuildConfig.define,
        tsconfigRaw: this.tsconfigRaw,
      };

      const { code: transformedCode, warnings } = await transform(code, transformOptions);

      if (warnings) {
        const relativePath = path.relative(process.cwd(), filePath);

        for (const warning of warnings) {
          if (!filteredWarnings.some(w => warning.text.includes(w))) {
            this.logger!.warn(
              `[@web/test-runner-esbuild] Warning while transforming ${relativePath}: ${warning.text}`,
            );
          }
        }
      }

      return transformedCode;
    } catch (e) {
      if (Array.isArray(e.errors)) {
        const msg = e.errors[0] as Message;

        if (msg.location) {
          throw new PluginSyntaxError(
            msg.text,
            filePath,
            code,
            msg.location.line,
            msg.location.column,
          );
        }

        throw new Error(msg.text);
      }

      throw e;
    }
  }