source: trip-planner-front/node_modules/@schematics/angular/utility/change.js@ 6a80231

Last change on this file since 6a80231 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 4.1 KB
Line 
1"use strict";
2/**
3 * @license
4 * Copyright Google LLC All Rights Reserved.
5 *
6 * Use of this source code is governed by an MIT-style license that can be
7 * found in the LICENSE file at https://angular.io/license
8 */
9Object.defineProperty(exports, "__esModule", { value: true });
10exports.applyToUpdateRecorder = exports.ReplaceChange = exports.RemoveChange = exports.InsertChange = exports.NoopChange = void 0;
11/**
12 * An operation that does nothing.
13 */
14class NoopChange {
15 constructor() {
16 this.description = 'No operation.';
17 this.order = Infinity;
18 this.path = null;
19 }
20 apply() {
21 return Promise.resolve();
22 }
23}
24exports.NoopChange = NoopChange;
25/**
26 * Will add text to the source code.
27 */
28class InsertChange {
29 constructor(path, pos, toAdd) {
30 this.path = path;
31 this.pos = pos;
32 this.toAdd = toAdd;
33 if (pos < 0) {
34 throw new Error('Negative positions are invalid');
35 }
36 this.description = `Inserted ${toAdd} into position ${pos} of ${path}`;
37 this.order = pos;
38 }
39 /**
40 * This method does not insert spaces if there is none in the original string.
41 */
42 apply(host) {
43 return host.read(this.path).then((content) => {
44 const prefix = content.substring(0, this.pos);
45 const suffix = content.substring(this.pos);
46 return host.write(this.path, `${prefix}${this.toAdd}${suffix}`);
47 });
48 }
49}
50exports.InsertChange = InsertChange;
51/**
52 * Will remove text from the source code.
53 */
54class RemoveChange {
55 constructor(path, pos, toRemove) {
56 this.path = path;
57 this.pos = pos;
58 this.toRemove = toRemove;
59 if (pos < 0) {
60 throw new Error('Negative positions are invalid');
61 }
62 this.description = `Removed ${toRemove} into position ${pos} of ${path}`;
63 this.order = pos;
64 }
65 apply(host) {
66 return host.read(this.path).then((content) => {
67 const prefix = content.substring(0, this.pos);
68 const suffix = content.substring(this.pos + this.toRemove.length);
69 // TODO: throw error if toRemove doesn't match removed string.
70 return host.write(this.path, `${prefix}${suffix}`);
71 });
72 }
73}
74exports.RemoveChange = RemoveChange;
75/**
76 * Will replace text from the source code.
77 */
78class ReplaceChange {
79 constructor(path, pos, oldText, newText) {
80 this.path = path;
81 this.pos = pos;
82 this.oldText = oldText;
83 this.newText = newText;
84 if (pos < 0) {
85 throw new Error('Negative positions are invalid');
86 }
87 this.description = `Replaced ${oldText} into position ${pos} of ${path} with ${newText}`;
88 this.order = pos;
89 }
90 apply(host) {
91 return host.read(this.path).then((content) => {
92 const prefix = content.substring(0, this.pos);
93 const suffix = content.substring(this.pos + this.oldText.length);
94 const text = content.substring(this.pos, this.pos + this.oldText.length);
95 if (text !== this.oldText) {
96 return Promise.reject(new Error(`Invalid replace: "${text}" != "${this.oldText}".`));
97 }
98 // TODO: throw error if oldText doesn't match removed string.
99 return host.write(this.path, `${prefix}${this.newText}${suffix}`);
100 });
101 }
102}
103exports.ReplaceChange = ReplaceChange;
104function applyToUpdateRecorder(recorder, changes) {
105 for (const change of changes) {
106 if (change instanceof InsertChange) {
107 recorder.insertLeft(change.pos, change.toAdd);
108 }
109 else if (change instanceof RemoveChange) {
110 recorder.remove(change.order, change.toRemove.length);
111 }
112 else if (change instanceof ReplaceChange) {
113 recorder.remove(change.order, change.oldText.length);
114 recorder.insertLeft(change.order, change.newText);
115 }
116 else if (!(change instanceof NoopChange)) {
117 throw new Error('Unknown Change type encountered when updating a recorder.');
118 }
119 }
120}
121exports.applyToUpdateRecorder = applyToUpdateRecorder;
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