feat: browser端,将 is-type-of 包的依赖处理为 shim (#801)

.prettierrc

@@ -0,0 +1,9 @@
+{
+ "semi": true,
+ "singleQuote": true,
+ "tabWidth": 2,
+ "useTabs": false,
+ "printWidth": 80,
+ "bracketSpacing": true,
+ "arrowParens": "avoid"
+}

package.json

@@ -15,7 +15,8 @@
  "utility": "./shims/utility.js",
  "crypto": "./shims/crypto/crypto.js",
  "fs": false,
- "child_process": false
+ "child_process": false,
+ "is-type-of": "./shims/is-type-of.js"
  },
  "scripts": {
  "build-change-log": "standard-version",

shims/is-type-of.js

@@ -0,0 +1,22 @@
+const { Stream } = require('stream');
+const isArray = require('../lib/common/utils/isArray');
+
+module.exports.string = function isString(obj) {
+ return typeof obj === 'string';
+};
+
+module.exports.array = isArray;
+
+module.exports.buffer = Buffer.isBuffer;
+
+function isStream(obj) {
+ return obj instanceof Stream;
+}
+
+module.exports.writableStream = function isWritableStream(obj) {
+ return (
+ isStream(obj) &&
+ typeof obj._write === 'function' &&
+ typeof obj._writableState === 'object'
+ );
+};