console.log("我會(huì)被清除"); 

a.b
a["b"]
new.target
super.b

+ export default () => {
+  return {
+    name: "@parrotjs/babel-plugin-console",
+    visitor,
+  };
+ };

+ const visitor = { 
+   CallExpression(path, { opts }) {
+    //當(dāng)traverse遍歷到類型為CallExpression的AST時(shí)，會(huì)進(jìn)入函數(shù)內(nèi)部，我們需要在函數(shù)內(nèi)部修改
+  }
+ };

CallExpression(path, { opts }) {
+  //獲取callee的path
+  const calleePath = path.get("callee"); 
+  //檢查callee中是否符合“console”這種模式
+  if (calleePath && calleePath.matchesPattern("console", true)) {
+       //如果符合 直接刪除節(jié)點(diǎn)  
+       path.remove();
+  }
},

+  const isProduction = process.env.NODE_ENV === "production";
CallExpression(path, { opts }) {
....
+  const { env } = opts;
+  if (env === "production" || isProduction) {
       path.remove();
+  }
....
},

....
+ const isArray = (arg) => Object.prototype.toString.call(arg) === "[object Array]";
- const { env } = opts;
+ const { env,exclude } = opts;
if (env === "production" || isProduction) {
- path.remove();  
+ //封裝函數(shù)進(jìn)行操作
+ removeConsoleExpression(path, calleePath, exclude);
}
+const removeConsoleExpression=(path, calleePath, exclude)=>{
+  if (isArray(exclude)) { 
+    const hasTarget = exclude.some((type) => {
+      return calleePath.matchesPattern("console." + type);
+    });
+    //匹配上直接返回不進(jìn)行操作
+    if (hasTarget) return;
+  }
+  path.remove();
+}

//no remove
console.log("測(cè)試1");
console.log("測(cè)試2");//reserse
//hhhhh
console.log("測(cè)試3")

- const { exclude, env } = opts;
+ const { exclude, commentWords, env } = opts;
+ const isFunction = (arg) =>Object.prototype.toString.call(arg) === "[object Function]";
+ // 判斷是否有前綴注釋 
+ const hasLeadingComments = (node) => {
+  const leadingComments = node.leadingComments;
+  return leadingComments && leadingComments.length;
+ };
+ // 判斷是否有后綴注釋 
+ const hasTrailingComments = (node) => {
+  const trailingComments = node.trailingComments;
+  return trailingComments && trailingComments.length;
+ };
+ //判斷是否有關(guān)鍵字匹配 默認(rèn)no remove || reserve 且如果commentWords和默認(rèn)值是相斥的
+ const isReserveComment = (node, commentWords) => {
+ if (isFunction(commentWords)) {
+   return commentWords(node.value);
+ }
+ return (
+    ["CommentBlock", "CommentLine"].includes(node.type) &&
+    (isArray(commentWords)
+      ? commentWords.includes(node.value)
+      : /(no[t]? remove\b)|(reserve\b)/.test(node.value))
+  );
+};
- const removeConsoleExpression = (path, calleePath, exclude) => {
+ const removeConsoleExpression = (path, calleePath, exclude,commentWords) => {
+ //獲取父path
+ const parentPath = path.parentPath;
+ const parentNode = parentPath.node;
+ //標(biāo)識(shí)是否有前綴注釋
+ let leadingReserve = false;
+ //標(biāo)識(shí)是否有后綴注釋
+ let trailReserve = false;
+ if (hasLeadingComments(parentNode)) {
+    //traverse 
+    parentNode.leadingComments.forEach((comment) => {
+      if (isReserveComment(comment, commentWords)) {
+        leadingReserve = true;
+      }
+    });
+  }
+ if (hasTrailingComments(parentNode)) {
    //traverse 
+   parentNode.trailingComments.forEach((comment) => {
+     if (isReserveComment(comment, commentWords)) {
+       trailReserve = true;
+     }
+   });
+ } 
+ //如果沒(méi)有前綴節(jié)點(diǎn)和后綴節(jié)點(diǎn) 直接刪除節(jié)點(diǎn)
+ if (!leadingReserve && !trailReserve) {
+    path.remove();
+  }
} 

console.log("測(cè)試1");
//no remove
console.log("測(cè)試2"); 
console.log("測(cè)試3");//reserve
console.log("測(cè)試4");
//新建.babelrc 引入插件
{
    "plugins":[["../dist/index.cjs",{
        "env":"production"
    }]]
}

 if (hasTrailingComments(parentNode)) {
+    const { start:{ line: currentLine } }=parentNode.loc;
    //traverse
    // @ts-ignore
    parentNode.trailingComments.forEach((comment) => { 
+      const { start:{ line: currentCommentLine } }=comment.loc;
+      if(currentLine===currentCommentLine){
+        comment.belongCurrentLine=true;
+      }
+     //屬于當(dāng)前行才將其設(shè)置為后綴注釋
-      if (isReserveComment(comment, commentWords))
+      if (isReserveComment(comment, commentWords) && comment.belongCurrentLine) {
        trailReserve = true;
      }
    });
  } 

 if (hasTrailingComments(parentNode)) {
+    const { start:{ line: currentLine } }=parentNode.loc;
    //traverse
    // @ts-ignore
    parentNode.trailingComments.forEach((comment) => { 
+      const { start:{ line: currentCommentLine } }=comment.loc;
+      if(currentLine===currentCommentLine){
+        comment.belongCurrentLine=true;
+      }
+     //屬于當(dāng)前行才將其設(shè)置為后綴注釋
-      if (isReserveComment(comment, commentWords))
+      if (isReserveComment(comment, commentWords) && comment.belongCurrentLine) {
        trailReserve = true;
      }
    });
  } 

yarn add @parrotjs/babel-plugin-console

{
    "plugins":[["../dist/index.cjs",{
        "env":"production"
    }]]
}