refactor: remove lang.ts (#14837)

modules/@angular/common/src/directives/ng_class.ts

@@ -6,8 +6,7 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {Directive, DoCheck, ElementRef, Input, IterableChanges, IterableDiffer, IterableDiffers, KeyValueChanges, KeyValueDiffer, KeyValueDiffers, Renderer, ɵisListLikeIterable as isListLikeIterable} from '@angular/core';
-import {stringify} from '../facade/lang';
+import {Directive, DoCheck, ElementRef, Input, IterableChanges, IterableDiffer, IterableDiffers, KeyValueChanges, KeyValueDiffer, KeyValueDiffers, Renderer, ɵisListLikeIterable as isListLikeIterable, ɵstringify as stringify} from '@angular/core';
 
 /**
  * @ngModule CommonModule

modules/@angular/common/src/directives/ng_for_of.ts

@@ -8,8 +8,6 @@
 
 import {ChangeDetectorRef, Directive, DoCheck, EmbeddedViewRef, Input, IterableChangeRecord, IterableChanges, IterableDiffer, IterableDiffers, NgIterable, OnChanges, SimpleChanges, TemplateRef, TrackByFunction, ViewContainerRef, forwardRef, isDevMode} from '@angular/core';
 
-import {getTypeNameForDebugging} from '../facade/lang';
-
 export class NgForOfRow<T> {
   constructor(public $implicit: T, public index: number, public count: number) {}
 
@@ -195,3 +193,7 @@ export type NgFor = NgForOf<any>;
  * @deprecated from v4.0.0 - Use NgForOf instead.
  */
 export const NgFor = NgForOf;
+
+export function getTypeNameForDebugging(type: any): string {
+  return type['name'] || typeof type;
+}

modules/@angular/common/src/facade

@@ -1 +0,0 @@
-../../facade/src

modules/@angular/common/src/location/hash_location_strategy.ts

@@ -8,7 +8,6 @@
 
 import {Inject, Injectable, Optional} from '@angular/core';
 
-import {isPresent} from '../facade/lang';
 
 import {Location} from './location';
 import {APP_BASE_HREF, LocationStrategy} from './location_strategy';
@@ -40,7 +39,7 @@ export class HashLocationStrategy extends LocationStrategy {
       private _platformLocation: PlatformLocation,
       @Optional() @Inject(APP_BASE_HREF) _baseHref?: string) {
     super();
-    if (isPresent(_baseHref)) {
+    if (_baseHref != null) {
       this._baseHref = _baseHref;
     }
   }
@@ -56,7 +55,7 @@ export class HashLocationStrategy extends LocationStrategy {
     // the hash value is always prefixed with a `#`
     // and if it is empty then it will stay empty
     let path = this._platformLocation.hash;
-    if (!isPresent(path)) path = '#';
+    if (path == null) path = '#';
 
     return path.length > 0 ? path.substring(1) : path;
   }

modules/@angular/common/src/location/path_location_strategy.ts

@@ -8,7 +8,6 @@
 
 import {Inject, Injectable, Optional} from '@angular/core';
 
-import {isBlank} from '../facade/lang';
 
 import {Location} from './location';
 import {APP_BASE_HREF, LocationStrategy} from './location_strategy';
@@ -51,11 +50,11 @@ export class PathLocationStrategy extends LocationStrategy {
       @Optional() @Inject(APP_BASE_HREF) href?: string) {
     super();
 
-    if (isBlank(href)) {
+    if (href == null) {
       href = this._platformLocation.getBaseHrefFromDOM();
     }
 
-    if (isBlank(href)) {
+    if (href == null) {
       throw new Error(
           `No base href set. Please provide a value for the APP_BASE_HREF token or add a base element to the document.`);
     }

modules/@angular/common/src/pipes/date_pipe.ts

@@ -7,9 +7,9 @@
  */
 
 import {Inject, LOCALE_ID, Pipe, PipeTransform} from '@angular/core';
-import {NumberWrapper} from '../facade/lang';
 import {DateFormatter} from './intl';
 import {invalidPipeArgumentError} from './invalid_pipe_argument_error';
+import {isNumeric} from './number_pipe';
 
 const ISO8601_DATE_REGEX =
     /^(\d{4})-?(\d\d)-?(\d\d)(?:T(\d\d)(?::?(\d\d)(?::?(\d\d)(?:\.(\d+))?)?)?(Z|([+-])(\d\d):?(\d\d))?)?$/;
@@ -111,7 +111,7 @@ export class DatePipe implements PipeTransform {
 
     if (isDate(value)) {
       date = value;
-    } else if (NumberWrapper.isNumeric(value)) {
+    } else if (isNumeric(value)) {
       date = new Date(parseFloat(value));
     } else if (typeof value === 'string' && /^(\d{4}-\d{1,2}-\d{1,2})$/.test(value)) {
       /**

modules/@angular/common/src/pipes/invalid_pipe_argument_error.ts

@@ -6,9 +6,7 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {Type} from '@angular/core';
-
-import {stringify} from '../facade/lang';
+import {Type, ɵstringify as stringify} from '@angular/core';
 
 export function invalidPipeArgumentError(type: Type<any>, value: Object) {
   return Error(`InvalidPipeArgument: '${value}' for pipe '${stringify(type)}'`);

modules/@angular/common/src/pipes/number_pipe.ts

@@ -7,9 +7,6 @@
  */
 
 import {Inject, LOCALE_ID, Pipe, PipeTransform, Type} from '@angular/core';
-
-import {NumberWrapper} from '../facade/lang';
-
 import {NumberFormatStyle, NumberFormatter} from './intl';
 import {invalidPipeArgumentError} from './invalid_pipe_argument_error';
 
@@ -21,7 +18,7 @@ function formatNumber(
   if (value == null) return null;
 
   // Convert strings to numbers
-  value = typeof value === 'string' && NumberWrapper.isNumeric(value) ? +value : value;
+  value = typeof value === 'string' && isNumeric(value) ? +value : value;
   if (typeof value !== 'number') {
     throw invalidPipeArgumentError(pipe, value);
   }
@@ -42,13 +39,13 @@ function formatNumber(
       throw new Error(`${digits} is not a valid digit info for number pipes`);
     }
     if (parts[1] != null) {  // min integer digits
-      minInt = NumberWrapper.parseIntAutoRadix(parts[1]);
+      minInt = parseIntAutoRadix(parts[1]);
     }
     if (parts[3] != null) {  // min fraction digits
-      minFraction = NumberWrapper.parseIntAutoRadix(parts[3]);
+      minFraction = parseIntAutoRadix(parts[3]);
     }
     if (parts[5] != null) {  // max fraction digits
-      maxFraction = NumberWrapper.parseIntAutoRadix(parts[5]);
+      maxFraction = parseIntAutoRadix(parts[5]);
     }
   }
 
@@ -162,3 +159,15 @@ export class CurrencyPipe implements PipeTransform {
         symbolDisplay);
   }
 }
+
+function parseIntAutoRadix(text: string): number {
+  const result: number = parseInt(text);
+  if (isNaN(result)) {
+    throw new Error('Invalid integer literal when parsing ' + text);
+  }
+  return result;
+}
+
+export function isNumeric(value: any): boolean {
+  return !isNaN(value - parseFloat(value));
+}