From 87fa636953b6de250c28b1ffb59d5d2195f54a83 Mon Sep 17 00:00:00 2001
From: Antoine du Hamel <duhamelantoine1995@gmail.com>
Date: Thu, 19 Nov 2020 23:28:20 +0100
Subject: [PATCH] assert: refactor to use more primordials

PR-URL: https://github.com/nodejs/node/pull/36234
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
---
 lib/assert.js | 60 ++++++++++++++++++++++++++++++++-------------------
 1 file changed, 38 insertions(+), 22 deletions(-)

diff --git a/lib/assert.js b/lib/assert.js
index 48daa56a29c4bd..9a62b38b57efb9 100644
--- a/lib/assert.js
+++ b/lib/assert.js
@@ -21,16 +21,29 @@
 'use strict';
 
 const {
+  ArrayPrototypeIndexOf,
+  ArrayPrototypeJoin,
+  ArrayPrototypePush,
+  ArrayPrototypeShift,
+  ArrayPrototypeSlice,
   Error,
   ErrorCaptureStackTrace,
+  FunctionPrototypeBind,
+  NumberIsNaN,
   ObjectAssign,
   ObjectIs,
   ObjectKeys,
   ObjectPrototypeIsPrototypeOf,
-  Map,
-  NumberIsNaN,
+  ReflectApply,
   RegExpPrototypeTest,
+  SafeMap,
   String,
+  StringPrototypeCharCodeAt,
+  StringPrototypeIncludes,
+  StringPrototypeIndexOf,
+  StringPrototypeReplace,
+  StringPrototypeSlice,
+  StringPrototypeSplit,
 } = primordials;
 
 const { Buffer } = require('buffer');
@@ -52,7 +65,7 @@ const { EOL } = require('internal/constants');
 const { NativeModule } = require('internal/bootstrap/loaders');
 const { isError } = require('internal/util');
 
-const errorCache = new Map();
+const errorCache = new SafeMap();
 const CallTracker = require('internal/assert/calltracker');
 
 let isDeepEqual;
@@ -81,7 +94,7 @@ const meta = [
   '\\u001e', '\\u001f'
 ];
 
-const escapeFn = (str) => meta[str.charCodeAt(0)];
+const escapeFn = (str) => meta[StringPrototypeCharCodeAt(str, 0)];
 
 let warned = false;
 
@@ -240,7 +253,7 @@ function parseCode(code, offset) {
       classFields,
       staticClassFeatures
     );
-    parseExpressionAt = Parser.parseExpressionAt.bind(Parser);
+    parseExpressionAt = FunctionPrototypeBind(Parser.parseExpressionAt, Parser);
   }
   let node;
   let start = 0;
@@ -265,8 +278,9 @@ function parseCode(code, offset) {
 
   return [
     node.node.start,
-    code.slice(node.node.start, node.node.end)
-        .replace(escapeSequencesRegExp, escapeFn)
+    StringPrototypeReplace(StringPrototypeSlice(code,
+                                                node.node.start, node.node.end),
+                           escapeSequencesRegExp, escapeFn)
   ];
 }
 
@@ -330,23 +344,24 @@ function getErrMessage(message, fn) {
       decoder.end();
     } else {
       for (let i = 0; i < line; i++) {
-        code = code.slice(code.indexOf('\n') + 1);
+        code = StringPrototypeSlice(code,
+                                    StringPrototypeIndexOf(code, '\n') + 1);
       }
       [column, message] = parseCode(code, column);
     }
     // Always normalize indentation, otherwise the message could look weird.
-    if (message.includes('\n')) {
+    if (StringPrototypeIncludes(message, '\n')) {
       if (EOL === '\r\n') {
-        message = message.replace(/\r\n/g, '\n');
+        message = StringPrototypeReplace(message, /\r\n/g, '\n');
       }
-      const frames = message.split('\n');
-      message = frames.shift();
+      const frames = StringPrototypeSplit(message, '\n');
+      message = ArrayPrototypeShift(frames);
       for (const frame of frames) {
         let pos = 0;
         while (pos < column && (frame[pos] === ' ' || frame[pos] === '\t')) {
           pos++;
         }
-        message += `\n  ${frame.slice(pos)}`;
+        message += `\n  ${StringPrototypeSlice(frame, pos)}`;
       }
     }
     message = `The expression evaluated to a falsy value:\n\n  ${message}\n`;
@@ -670,7 +685,7 @@ function expectedException(actual, expected, message, fn) {
       // Special handle errors to make sure the name and the message are
       // compared as well.
       if (expected instanceof Error) {
-        keys.push('name', 'message');
+        ArrayPrototypePush(keys, 'name', 'message');
       } else if (keys.length === 0) {
         throw new ERR_INVALID_ARG_VALUE('error',
                                         expected, 'may not be an empty object');
@@ -713,7 +728,7 @@ function expectedException(actual, expected, message, fn) {
     throwError = true;
   } else {
     // Check validation functions return value.
-    const res = expected.call({}, actual);
+    const res = ReflectApply(expected, {}, [actual]);
     if (res !== true) {
       if (!message) {
         generatedMessage = true;
@@ -858,7 +873,7 @@ function hasMatchingError(actual, expected) {
   if (ObjectPrototypeIsPrototypeOf(Error, expected)) {
     return false;
   }
-  return expected.call({}, actual) === true;
+  return ReflectApply(expected, {}, [actual]) === true;
 }
 
 function expectsNoError(stackStartFn, actual, error, message) {
@@ -959,20 +974,21 @@ assert.ifError = function ifError(err) {
       // This will remove any duplicated frames from the error frames taken
       // from within `ifError` and add the original error frames to the newly
       // created ones.
-      const tmp2 = origStack.split('\n');
-      tmp2.shift();
+      const tmp2 = StringPrototypeSplit(origStack, '\n');
+      ArrayPrototypeShift(tmp2);
       // Filter all frames existing in err.stack.
-      let tmp1 = newErr.stack.split('\n');
+      let tmp1 = StringPrototypeSplit(newErr.stack, '\n');
       for (const errFrame of tmp2) {
         // Find the first occurrence of the frame.
-        const pos = tmp1.indexOf(errFrame);
+        const pos = ArrayPrototypeIndexOf(tmp1, errFrame);
         if (pos !== -1) {
           // Only keep new frames.
-          tmp1 = tmp1.slice(0, pos);
+          tmp1 = ArrayPrototypeSlice(tmp1, 0, pos);
           break;
         }
       }
-      newErr.stack = `${tmp1.join('\n')}\n${tmp2.join('\n')}`;
+      newErr.stack =
+        `${ArrayPrototypeJoin(tmp1, '\n')}\n${ArrayPrototypeJoin(tmp2, '\n')}`;
     }
 
     throw newErr;