visitAPI()

in lib/semantic.js [1187:1225]

• 35 lines of code
• 8 McCabe index (conditional complexity)

  visitAPI(ast) {
    assert.equal(ast.type, 'api');
    const paramMap = this.visitParams(ast.params, {
      needValidateParams: true
    });
    this.checkType(ast.returnType);
    const returnType = ast.returnType;
    if(returnType.type  === 'iterator') {
      this.error(`api return type must be asyncIterator`, ast.apiName);
    }
    const local = new Env();
    // merge the parameters into local env
    for (const [key, value] of paramMap) {
      local.set(key, value);
    }
    const env = {
      returnType,
      isAsync: true,
      local: local
    };
    env.local.set('__request', _model('$Request'));
    this.visitAPIBody(ast.apiBody, env);

    ast.isAsync = true;
    if (ast.returns) {
      env.inReturnsBlock = true;
      env.local.set('__response', _model('$Response'));
      this.visitReturnBody(ast.returns, env);

      if (!(returnType.tag === Tag.TYPE && returnType.lexeme === 'void') && 
      !this.hasReturnStmt(ast.returns.stmts)) {
        this.error(`no return statement`, ast.apiName);
      }
    }

    if (ast.runtimeBody) {
      this.visitObject(ast.runtimeBody, env);
    }
  }