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王铭沣 homework-1 #58

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29 changes: 28 additions & 1 deletion homework/1/rename.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,12 +2,39 @@ const acorn = require('acorn');
const astring = require('astring');
const traverse = require('../../common/traverse');



function transform(root, originName, targetName) {

// 替换变量名
function replace(name){
if (name === originName) return targetName
}

// 遍历所有节点
return traverse((node, ctx, next) => {

// TODO: 作业代码写在这里
if (node.type === 'xxx') {
if (node.type === 'VariableDeclarator') {
node.id.name = replace(node.id.name)
}
if (node.type === 'MemberExpression') {
if (node.object.type === 'Identifier') {
node.object.name = replace(node.object.name)
}
}
if (node.type === 'BinaryExpression') {
if (node.left.type === 'Identifier') {
node.left.name = replace(node.left.name)
}
if (node.right.type === 'Identifier') {
node.right.name = replace(node.right.name)
}
}
if (node.type === 'FunctionDeclaration') {
if (node.id.type === 'Identifier') {
node.id.name = replace(node.id.name)
}
}

// 继续往下遍历
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