refactor: remove duplicate mapDoc (#4310)

src/common/util-shared.js

@@ -1,6 +1,7 @@
 "use strict";
 
 const util = require("./util");
+const docUtils = require("../doc/doc-utils");
 
 function isNextLineEmpty(text, node, options) {
   return util.isNextLineEmpty(text, node, options.locEnd);
@@ -18,7 +19,7 @@ module.exports = {
   isNextLineEmpty,
   isNextLineEmptyAfterIndex: util.isNextLineEmptyAfterIndex,
   getNextNonSpaceNonCommentCharacterIndex,
-  mapDoc: util.mapDoc,
+  mapDoc: docUtils.mapDoc, // TODO: remove in 2.0, we already exposed it in docUtils
   makeString: util.makeString,
   addLeadingComment: util.addLeadingComment,
   addDanglingComment: util.addDanglingComment,

src/common/util.js

@@ -600,20 +600,6 @@ function getMaxContinuousCount(str, target) {
   );
 }
 
-function mapDoc(doc, callback) {
-  if (doc.parts) {
-    const parts = doc.parts.map(part => mapDoc(part, callback));
-    return callback(Object.assign({}, doc, { parts }));
-  }
-
-  if (doc.contents) {
-    const contents = mapDoc(doc.contents, callback);
-    return callback(Object.assign({}, doc, { contents }));
-  }
-
-  return callback(doc);
-}
-
 /**
  * split text into whitespaces and words
  * @param {string} text
@@ -795,7 +781,6 @@ module.exports = {
   punctuationCharRange,
   getStringWidth,
   splitText,
-  mapDoc,
   getMaxContinuousCount,
   getPrecedence,
   shouldFlatten,

src/doc/doc-utils.js

@@ -40,22 +40,19 @@ function traverseDoc(doc, onEnter, onExit, shouldTraverseConditionalGroups) {
   traverseDocRec(doc);
 }
 
-function mapDoc(doc, func) {
-  doc = func(doc);
-
+function mapDoc(doc, cb) {
   if (doc.type === "concat" || doc.type === "fill") {
-    return Object.assign({}, doc, {
-      parts: doc.parts.map(d => mapDoc(d, func))
-    });
+    const parts = doc.parts.map(part => mapDoc(part, cb));
+    return cb(Object.assign({}, doc, { parts }));
   } else if (doc.type === "if-break") {
-    return Object.assign({}, doc, {
-      breakContents: doc.breakContents && mapDoc(doc.breakContents, func),
-      flatContents: doc.flatContents && mapDoc(doc.flatContents, func)
-    });
+    const breakContents = doc.breakContents && mapDoc(doc.breakContents, cb);
+    const flatContents = doc.flatContents && mapDoc(doc.flatContents, cb);
+    return cb(Object.assign({}, doc, { breakContents, flatContents }));
   } else if (doc.contents) {
-    return Object.assign({}, doc, { contents: mapDoc(doc.contents, func) });
+    const contents = mapDoc(doc.contents, cb);
+    return cb(Object.assign({}, doc, { contents }));
   }
-  return doc;
+  return cb(doc);
 }
 
 function findInDoc(doc, fn, defaultValue) {

src/language-js/embed.js

@@ -1,6 +1,5 @@
 "use strict";
 
-const util = require("../common/util");
 const doc = require("../doc");
 const docUtils = doc.utils;
 const docBuilders = doc.builders;
@@ -199,7 +198,7 @@ function getIndentation(str) {
 }
 
 function escapeBackticks(doc) {
-  return util.mapDoc(doc, currentDoc => {
+  return docUtils.mapDoc(doc, currentDoc => {
     if (!currentDoc.parts) {
       return currentDoc;
     }

src/language-markdown/embed.js

@@ -1,5 +1,6 @@
 "use strict";
 
+const docUtils = require("../doc/doc-utils");
 const util = require("../common/util");
 const support = require("../common/support");
 const doc = require("../doc");
@@ -55,7 +56,7 @@ function embed(path, print, textToDoc, options) {
   }
 
   function replaceNewlinesWithLiterallines(doc) {
-    return util.mapDoc(
+    return docUtils.mapDoc(
       doc,
       currentDoc =>
         typeof currentDoc === "string" && currentDoc.includes("\n")

src/language-markdown/printer-markdown.js

@@ -1,5 +1,6 @@
 "use strict";
 
+const docUtils = require("../doc/doc-utils");
 const privateUtil = require("../common/util");
 const embed = require("./embed");
 const pragma = require("./pragma");
@@ -719,7 +720,7 @@ function shouldRemainTheSameContent(path) {
 }
 
 function normalizeDoc(doc) {
-  return privateUtil.mapDoc(doc, currentDoc => {
+  return docUtils.mapDoc(doc, currentDoc => {
     if (!currentDoc.parts) {
       return currentDoc;
     }