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NodeJs:从具有类型定义的文件中读取并作为 class 定义写入文件

[英]NodeJs: read from file with type definitions and write to file as class definition

我有一个带有类型定义的 typescript 文件。 我需要找到特定的类型名称并将其写入另一个文件,但作为 class。例如:

type exampleOne = {
    atrA: string
    atrB: number
}
type exampleTwo = {
    atrA: number
    atrB: string
    atrC: string
}

并将 exampleTwo 写入另一个文件:

class exampleTwo {
    atrA: number
    atrB: string
    atrC: string
}

我有这个想法,但我不知道如何实现它:

  1. 读取文件
  2. 找到我想要的类型名称
  3. select 从我要查找的行的开头开始,直到下一个右括号
  4. 用“class”替换单词“type”并取消等号
  5. 写入另一个文件

您可能正在寻找这个: https<\/a> :\/\/www.typescriptlang.org\/docs\/handbook\/typescript-in-5-minutes.html

在这种情况下,也许您正在尝试输入这样的内容?

class exampleTwo {
  atrA: number;
  atrB: string;
  atrC: string;

constructor(atrA: number, atrB: string, atrC: string)
  this.atrA = atrA;
  this.atrB = atrB;
  this.atrC = atrC;
}

const newExample = new exampleTwo(2, 'hello', 'world');

由于我没有找到解决这个问题的方法,我最终通过在 bash 中编写自己的脚本解决了这个问题。我可以使用 javascript,但我更喜欢 bash:

# Take as argument a name for reference
NEW=$1

# Verify argument is passed
if [ $# -ne 1 ]; then
    echo "One argument is required."
    exit 1
fi

# Location where the types are
PRISMA_URL='./node_modules/.prisma/client/index.d.ts'

# Location to save the file
NEW_DTO_CREATE_URL="./src/dtos/create-"${NEW}".dto.ts"

# Verify if already exists that file
if [ -f ${NEW_DTO_CREATE_URL} ]; then
    echo "Already exists"
else

  # Get the line number where starts the type I need
  LINE_N=$(grep -nm1 "export type ${NEW}CreateManyInput = {" ${PRISMA_URL} | grep -Po '^[^:]+')
  echo "export class Create${NEW^}Dto {" >> ${NEW_DTO_CREATE_URL}
  # Read all the line content on that line number
  LINE=$(head -n ${LINE_N} ${PRISMA_URL} | tail -1)

  # Start the loop. While LINE isn't a closed bracket...
  while [[ ${LINE} != *"}"* ]]; do
      ((LINE_N+=1))
      LINE=$(head -n ${LINE_N} ${PRISMA_URL} | tail -1)
      echo "${LINE}" >> ${NEW_DTO_CREATE_URL}
  done
fi

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