Files
azuredatastudio/src/vs/editor/common/model/textModel.ts
Anthony Dresser 1b78a9b1e0 Merge from vscode e6a45f4242ebddb7aa9a229f85555e8a3bd987e2 (#9253)
* Merge from vscode e6a45f4242ebddb7aa9a229f85555e8a3bd987e2

* skip failing tests

* remove github-authentication extensions

* ignore github compile steps

* ignore github compile steps

* check in compiled files
2020-02-21 12:11:51 -08:00

3223 lines
111 KiB
TypeScript

/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the Source EULA. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import { CharCode } from 'vs/base/common/charCode';
import { onUnexpectedError } from 'vs/base/common/errors';
import { Emitter, Event } from 'vs/base/common/event';
import { IMarkdownString } from 'vs/base/common/htmlContent';
import { Disposable, IDisposable } from 'vs/base/common/lifecycle';
import * as strings from 'vs/base/common/strings';
import { URI } from 'vs/base/common/uri';
import { EDITOR_MODEL_DEFAULTS } from 'vs/editor/common/config/editorOptions';
import { LineTokens } from 'vs/editor/common/core/lineTokens';
import { IPosition, Position } from 'vs/editor/common/core/position';
import { IRange, Range } from 'vs/editor/common/core/range';
import { Selection } from 'vs/editor/common/core/selection';
import * as model from 'vs/editor/common/model';
import { EditStack } from 'vs/editor/common/model/editStack';
import { guessIndentation } from 'vs/editor/common/model/indentationGuesser';
import { IntervalNode, IntervalTree, getNodeIsInOverviewRuler, recomputeMaxEnd } from 'vs/editor/common/model/intervalTree';
import { PieceTreeTextBufferBuilder } from 'vs/editor/common/model/pieceTreeTextBuffer/pieceTreeTextBufferBuilder';
import { IModelContentChangedEvent, IModelDecorationsChangedEvent, IModelLanguageChangedEvent, IModelLanguageConfigurationChangedEvent, IModelOptionsChangedEvent, IModelTokensChangedEvent, InternalModelContentChangeEvent, ModelRawChange, ModelRawContentChangedEvent, ModelRawEOLChanged, ModelRawFlush, ModelRawLineChanged, ModelRawLinesDeleted, ModelRawLinesInserted } from 'vs/editor/common/model/textModelEvents';
import { SearchData, SearchParams, TextModelSearch } from 'vs/editor/common/model/textModelSearch';
import { TextModelTokenization } from 'vs/editor/common/model/textModelTokens';
import { getWordAtText } from 'vs/editor/common/model/wordHelper';
import { LanguageId, LanguageIdentifier, FormattingOptions } from 'vs/editor/common/modes';
import { LanguageConfigurationRegistry } from 'vs/editor/common/modes/languageConfigurationRegistry';
import { NULL_LANGUAGE_IDENTIFIER } from 'vs/editor/common/modes/nullMode';
import { ignoreBracketsInToken } from 'vs/editor/common/modes/supports';
import { BracketsUtils, RichEditBracket, RichEditBrackets } from 'vs/editor/common/modes/supports/richEditBrackets';
import { ThemeColor } from 'vs/platform/theme/common/themeService';
import { withUndefinedAsNull } from 'vs/base/common/types';
import { VSBufferReadableStream, VSBuffer } from 'vs/base/common/buffer';
import { TokensStore, MultilineTokens, countEOL, MultilineTokens2, TokensStore2 } from 'vs/editor/common/model/tokensStore';
import { Color } from 'vs/base/common/color';
import { Constants } from 'vs/base/common/uint';
import { EditorTheme } from 'vs/editor/common/view/viewContext';
import { IUndoRedoService } from 'vs/platform/undoRedo/common/undoRedo';
import { UndoRedoService } from 'vs/platform/undoRedo/common/undoRedoService';
function createTextBufferBuilder() {
return new PieceTreeTextBufferBuilder();
}
export function createTextBufferFactory(text: string): model.ITextBufferFactory {
const builder = createTextBufferBuilder();
builder.acceptChunk(text);
return builder.finish();
}
interface ITextStream {
on(event: 'data', callback: (data: string) => void): void;
on(event: 'error', callback: (err: Error) => void): void;
on(event: 'end', callback: () => void): void;
on(event: string, callback: any): void;
}
export function createTextBufferFactoryFromStream(stream: ITextStream, filter?: (chunk: string) => string, validator?: (chunk: string) => Error | undefined): Promise<model.ITextBufferFactory>;
export function createTextBufferFactoryFromStream(stream: VSBufferReadableStream, filter?: (chunk: VSBuffer) => VSBuffer, validator?: (chunk: VSBuffer) => Error | undefined): Promise<model.ITextBufferFactory>;
export function createTextBufferFactoryFromStream(stream: ITextStream | VSBufferReadableStream, filter?: (chunk: any) => string | VSBuffer, validator?: (chunk: any) => Error | undefined): Promise<model.ITextBufferFactory> {
return new Promise<model.ITextBufferFactory>((resolve, reject) => {
const builder = createTextBufferBuilder();
let done = false;
stream.on('data', (chunk: string | VSBuffer) => {
if (validator) {
const error = validator(chunk);
if (error) {
done = true;
reject(error);
}
}
if (filter) {
chunk = filter(chunk);
}
builder.acceptChunk((typeof chunk === 'string') ? chunk : chunk.toString());
});
stream.on('error', (error) => {
if (!done) {
done = true;
reject(error);
}
});
stream.on('end', () => {
if (!done) {
done = true;
resolve(builder.finish());
}
});
});
}
export function createTextBufferFactoryFromSnapshot(snapshot: model.ITextSnapshot): model.ITextBufferFactory {
let builder = createTextBufferBuilder();
let chunk: string | null;
while (typeof (chunk = snapshot.read()) === 'string') {
builder.acceptChunk(chunk);
}
return builder.finish();
}
export function createTextBuffer(value: string | model.ITextBufferFactory, defaultEOL: model.DefaultEndOfLine): model.ITextBuffer {
const factory = (typeof value === 'string' ? createTextBufferFactory(value) : value);
return factory.create(defaultEOL);
}
let MODEL_ID = 0;
const LIMIT_FIND_COUNT = 999;
export const LONG_LINE_BOUNDARY = 10000;
class TextModelSnapshot implements model.ITextSnapshot {
private readonly _source: model.ITextSnapshot;
private _eos: boolean;
constructor(source: model.ITextSnapshot) {
this._source = source;
this._eos = false;
}
public read(): string | null {
if (this._eos) {
return null;
}
let result: string[] = [], resultCnt = 0, resultLength = 0;
do {
let tmp = this._source.read();
if (tmp === null) {
// end-of-stream
this._eos = true;
if (resultCnt === 0) {
return null;
} else {
return result.join('');
}
}
if (tmp.length > 0) {
result[resultCnt++] = tmp;
resultLength += tmp.length;
}
if (resultLength >= 64 * 1024) {
return result.join('');
}
} while (true);
}
}
const invalidFunc = () => { throw new Error(`Invalid change accessor`); };
const enum StringOffsetValidationType {
/**
* Even allowed in surrogate pairs
*/
Relaxed = 0,
/**
* Not allowed in surrogate pairs
*/
SurrogatePairs = 1,
}
export class TextModel extends Disposable implements model.ITextModel {
private static readonly MODEL_SYNC_LIMIT = 50 * 1024 * 1024; // 50 MB
private static readonly LARGE_FILE_SIZE_THRESHOLD = 20 * 1024 * 1024; // 20 MB;
private static readonly LARGE_FILE_LINE_COUNT_THRESHOLD = 300 * 1000; // 300K lines
public static DEFAULT_CREATION_OPTIONS: model.ITextModelCreationOptions = {
isForSimpleWidget: false,
tabSize: EDITOR_MODEL_DEFAULTS.tabSize,
indentSize: EDITOR_MODEL_DEFAULTS.indentSize,
insertSpaces: EDITOR_MODEL_DEFAULTS.insertSpaces,
detectIndentation: false,
defaultEOL: model.DefaultEndOfLine.LF,
trimAutoWhitespace: EDITOR_MODEL_DEFAULTS.trimAutoWhitespace,
largeFileOptimizations: EDITOR_MODEL_DEFAULTS.largeFileOptimizations,
};
public static createFromString(text: string, options: model.ITextModelCreationOptions = TextModel.DEFAULT_CREATION_OPTIONS, languageIdentifier: LanguageIdentifier | null = null, uri: URI | null = null): TextModel {
return new TextModel(text, options, languageIdentifier, uri, new UndoRedoService());
}
public static resolveOptions(textBuffer: model.ITextBuffer, options: model.ITextModelCreationOptions): model.TextModelResolvedOptions {
if (options.detectIndentation) {
const guessedIndentation = guessIndentation(textBuffer, options.tabSize, options.insertSpaces);
return new model.TextModelResolvedOptions({
tabSize: guessedIndentation.tabSize,
indentSize: guessedIndentation.tabSize, // TODO@Alex: guess indentSize independent of tabSize
insertSpaces: guessedIndentation.insertSpaces,
trimAutoWhitespace: options.trimAutoWhitespace,
defaultEOL: options.defaultEOL
});
}
return new model.TextModelResolvedOptions({
tabSize: options.tabSize,
indentSize: options.indentSize,
insertSpaces: options.insertSpaces,
trimAutoWhitespace: options.trimAutoWhitespace,
defaultEOL: options.defaultEOL
});
}
//#region Events
private readonly _onWillDispose: Emitter<void> = this._register(new Emitter<void>());
public readonly onWillDispose: Event<void> = this._onWillDispose.event;
private readonly _onDidChangeDecorations: DidChangeDecorationsEmitter = this._register(new DidChangeDecorationsEmitter());
public readonly onDidChangeDecorations: Event<IModelDecorationsChangedEvent> = this._onDidChangeDecorations.event;
private readonly _onDidChangeLanguage: Emitter<IModelLanguageChangedEvent> = this._register(new Emitter<IModelLanguageChangedEvent>());
public readonly onDidChangeLanguage: Event<IModelLanguageChangedEvent> = this._onDidChangeLanguage.event;
private readonly _onDidChangeLanguageConfiguration: Emitter<IModelLanguageConfigurationChangedEvent> = this._register(new Emitter<IModelLanguageConfigurationChangedEvent>());
public readonly onDidChangeLanguageConfiguration: Event<IModelLanguageConfigurationChangedEvent> = this._onDidChangeLanguageConfiguration.event;
private readonly _onDidChangeTokens: Emitter<IModelTokensChangedEvent> = this._register(new Emitter<IModelTokensChangedEvent>());
public readonly onDidChangeTokens: Event<IModelTokensChangedEvent> = this._onDidChangeTokens.event;
private readonly _onDidChangeOptions: Emitter<IModelOptionsChangedEvent> = this._register(new Emitter<IModelOptionsChangedEvent>());
public readonly onDidChangeOptions: Event<IModelOptionsChangedEvent> = this._onDidChangeOptions.event;
private readonly _onDidChangeAttached: Emitter<void> = this._register(new Emitter<void>());
public readonly onDidChangeAttached: Event<void> = this._onDidChangeAttached.event;
private readonly _eventEmitter: DidChangeContentEmitter = this._register(new DidChangeContentEmitter());
public onDidChangeRawContentFast(listener: (e: ModelRawContentChangedEvent) => void): IDisposable {
return this._eventEmitter.fastEvent((e: InternalModelContentChangeEvent) => listener(e.rawContentChangedEvent));
}
public onDidChangeRawContent(listener: (e: ModelRawContentChangedEvent) => void): IDisposable {
return this._eventEmitter.slowEvent((e: InternalModelContentChangeEvent) => listener(e.rawContentChangedEvent));
}
public onDidChangeContentFast(listener: (e: IModelContentChangedEvent) => void): IDisposable {
return this._eventEmitter.fastEvent((e: InternalModelContentChangeEvent) => listener(e.contentChangedEvent));
}
public onDidChangeContent(listener: (e: IModelContentChangedEvent) => void): IDisposable {
return this._eventEmitter.slowEvent((e: InternalModelContentChangeEvent) => listener(e.contentChangedEvent));
}
//#endregion
public readonly id: string;
public readonly isForSimpleWidget: boolean;
private readonly _associatedResource: URI;
private readonly _undoRedoService: IUndoRedoService;
private _attachedEditorCount: number;
private _buffer: model.ITextBuffer;
private _options: model.TextModelResolvedOptions;
private _isDisposed: boolean;
private _isDisposing: boolean;
private _versionId: number;
/**
* Unlike, versionId, this can go down (via undo) or go to previous values (via redo)
*/
private _alternativeVersionId: number;
private readonly _isTooLargeForSyncing: boolean;
private readonly _isTooLargeForTokenization: boolean;
//#region Editing
private readonly _commandManager: EditStack;
private _isUndoing: boolean;
private _isRedoing: boolean;
private _trimAutoWhitespaceLines: number[] | null;
//#endregion
//#region Decorations
/**
* Used to workaround broken clients that might attempt using a decoration id generated by a different model.
* It is not globally unique in order to limit it to one character.
*/
private readonly _instanceId: string;
private _lastDecorationId: number;
private _decorations: { [decorationId: string]: IntervalNode; };
private _decorationsTree: DecorationsTrees;
//#endregion
//#region Tokenization
private _languageIdentifier: LanguageIdentifier;
private readonly _languageRegistryListener: IDisposable;
private readonly _tokens: TokensStore;
private readonly _tokens2: TokensStore2;
private readonly _tokenization: TextModelTokenization;
//#endregion
constructor(
source: string | model.ITextBufferFactory,
creationOptions: model.ITextModelCreationOptions,
languageIdentifier: LanguageIdentifier | null,
associatedResource: URI | null = null,
undoRedoService: IUndoRedoService
) {
super();
// Generate a new unique model id
MODEL_ID++;
this.id = '$model' + MODEL_ID;
this.isForSimpleWidget = creationOptions.isForSimpleWidget;
if (typeof associatedResource === 'undefined' || associatedResource === null) {
this._associatedResource = URI.parse('inmemory://model/' + MODEL_ID);
} else {
this._associatedResource = associatedResource;
}
this._undoRedoService = undoRedoService;
this._attachedEditorCount = 0;
this._buffer = createTextBuffer(source, creationOptions.defaultEOL);
this._options = TextModel.resolveOptions(this._buffer, creationOptions);
const bufferLineCount = this._buffer.getLineCount();
const bufferTextLength = this._buffer.getValueLengthInRange(new Range(1, 1, bufferLineCount, this._buffer.getLineLength(bufferLineCount) + 1), model.EndOfLinePreference.TextDefined);
// !!! Make a decision in the ctor and permanently respect this decision !!!
// If a model is too large at construction time, it will never get tokenized,
// under no circumstances.
if (creationOptions.largeFileOptimizations) {
this._isTooLargeForTokenization = (
(bufferTextLength > TextModel.LARGE_FILE_SIZE_THRESHOLD)
|| (bufferLineCount > TextModel.LARGE_FILE_LINE_COUNT_THRESHOLD)
);
} else {
this._isTooLargeForTokenization = false;
}
this._isTooLargeForSyncing = (bufferTextLength > TextModel.MODEL_SYNC_LIMIT);
this._versionId = 1;
this._alternativeVersionId = 1;
this._isDisposed = false;
this._isDisposing = false;
this._languageIdentifier = languageIdentifier || NULL_LANGUAGE_IDENTIFIER;
this._languageRegistryListener = LanguageConfigurationRegistry.onDidChange((e) => {
if (e.languageIdentifier.id === this._languageIdentifier.id) {
this._onDidChangeLanguageConfiguration.fire({});
}
});
this._instanceId = strings.singleLetterHash(MODEL_ID);
this._lastDecorationId = 0;
this._decorations = Object.create(null);
this._decorationsTree = new DecorationsTrees();
this._commandManager = new EditStack(this, undoRedoService);
this._isUndoing = false;
this._isRedoing = false;
this._trimAutoWhitespaceLines = null;
this._tokens = new TokensStore();
this._tokens2 = new TokensStore2();
this._tokenization = new TextModelTokenization(this);
}
public dispose(): void {
this._isDisposing = true;
this._onWillDispose.fire();
this._languageRegistryListener.dispose();
this._tokenization.dispose();
this._undoRedoService.removeElements(this.uri);
this._isDisposed = true;
super.dispose();
this._isDisposing = false;
}
private _assertNotDisposed(): void {
if (this._isDisposed) {
throw new Error('Model is disposed!');
}
}
public equalsTextBuffer(other: model.ITextBuffer): boolean {
this._assertNotDisposed();
return this._buffer.equals(other);
}
private _emitContentChangedEvent(rawChange: ModelRawContentChangedEvent, change: IModelContentChangedEvent): void {
if (this._isDisposing) {
// Do not confuse listeners by emitting any event after disposing
return;
}
this._eventEmitter.fire(new InternalModelContentChangeEvent(rawChange, change));
}
public setValue(value: string): void {
this._assertNotDisposed();
if (value === null) {
// There's nothing to do
return;
}
const textBuffer = createTextBuffer(value, this._options.defaultEOL);
this.setValueFromTextBuffer(textBuffer);
}
private _createContentChanged2(range: Range, rangeOffset: number, rangeLength: number, text: string, isUndoing: boolean, isRedoing: boolean, isFlush: boolean): IModelContentChangedEvent {
return {
changes: [{
range: range,
rangeOffset: rangeOffset,
rangeLength: rangeLength,
text: text,
}],
eol: this._buffer.getEOL(),
versionId: this.getVersionId(),
isUndoing: isUndoing,
isRedoing: isRedoing,
isFlush: isFlush
};
}
public setValueFromTextBuffer(textBuffer: model.ITextBuffer): void {
this._assertNotDisposed();
if (textBuffer === null) {
// There's nothing to do
return;
}
const oldFullModelRange = this.getFullModelRange();
const oldModelValueLength = this.getValueLengthInRange(oldFullModelRange);
const endLineNumber = this.getLineCount();
const endColumn = this.getLineMaxColumn(endLineNumber);
this._buffer = textBuffer;
this._increaseVersionId();
// Flush all tokens
this._tokens.flush();
this._tokens2.flush();
// Destroy all my decorations
this._decorations = Object.create(null);
this._decorationsTree = new DecorationsTrees();
// Destroy my edit history and settings
this._commandManager.clear();
this._trimAutoWhitespaceLines = null;
this._emitContentChangedEvent(
new ModelRawContentChangedEvent(
[
new ModelRawFlush()
],
this._versionId,
false,
false
),
this._createContentChanged2(new Range(1, 1, endLineNumber, endColumn), 0, oldModelValueLength, this.getValue(), false, false, true)
);
}
public setEOL(eol: model.EndOfLineSequence): void {
this._assertNotDisposed();
const newEOL = (eol === model.EndOfLineSequence.CRLF ? '\r\n' : '\n');
if (this._buffer.getEOL() === newEOL) {
// Nothing to do
return;
}
const oldFullModelRange = this.getFullModelRange();
const oldModelValueLength = this.getValueLengthInRange(oldFullModelRange);
const endLineNumber = this.getLineCount();
const endColumn = this.getLineMaxColumn(endLineNumber);
this._onBeforeEOLChange();
this._buffer.setEOL(newEOL);
this._increaseVersionId();
this._onAfterEOLChange();
this._emitContentChangedEvent(
new ModelRawContentChangedEvent(
[
new ModelRawEOLChanged()
],
this._versionId,
false,
false
),
this._createContentChanged2(new Range(1, 1, endLineNumber, endColumn), 0, oldModelValueLength, this.getValue(), false, false, false)
);
}
_setEOL(eol: model.EndOfLineSequence, isUndoing: boolean, isRedoing: boolean, resultingAlternativeVersionId: number, resultingSelection: Selection[] | null): void {
try {
this._onDidChangeDecorations.beginDeferredEmit();
this._eventEmitter.beginDeferredEmit();
this._isUndoing = isUndoing;
this._isRedoing = isRedoing;
this.setEOL(eol);
this._overwriteAlternativeVersionId(resultingAlternativeVersionId);
} finally {
this._isUndoing = false;
this._eventEmitter.endDeferredEmit(resultingSelection);
this._onDidChangeDecorations.endDeferredEmit();
}
}
private _onBeforeEOLChange(): void {
// Ensure all decorations get their `range` set.
const versionId = this.getVersionId();
const allDecorations = this._decorationsTree.search(0, false, false, versionId);
this._ensureNodesHaveRanges(allDecorations);
}
private _onAfterEOLChange(): void {
// Transform back `range` to offsets
const versionId = this.getVersionId();
const allDecorations = this._decorationsTree.collectNodesPostOrder();
for (let i = 0, len = allDecorations.length; i < len; i++) {
const node = allDecorations[i];
const delta = node.cachedAbsoluteStart - node.start;
const startOffset = this._buffer.getOffsetAt(node.range.startLineNumber, node.range.startColumn);
const endOffset = this._buffer.getOffsetAt(node.range.endLineNumber, node.range.endColumn);
node.cachedAbsoluteStart = startOffset;
node.cachedAbsoluteEnd = endOffset;
node.cachedVersionId = versionId;
node.start = startOffset - delta;
node.end = endOffset - delta;
recomputeMaxEnd(node);
}
}
public onBeforeAttached(): void {
this._attachedEditorCount++;
if (this._attachedEditorCount === 1) {
this._onDidChangeAttached.fire(undefined);
}
}
public onBeforeDetached(): void {
this._attachedEditorCount--;
if (this._attachedEditorCount === 0) {
this._onDidChangeAttached.fire(undefined);
}
}
public isAttachedToEditor(): boolean {
return this._attachedEditorCount > 0;
}
public getAttachedEditorCount(): number {
return this._attachedEditorCount;
}
public isTooLargeForSyncing(): boolean {
return this._isTooLargeForSyncing;
}
public isTooLargeForTokenization(): boolean {
return this._isTooLargeForTokenization;
}
public isDisposed(): boolean {
return this._isDisposed;
}
public isDominatedByLongLines(): boolean {
this._assertNotDisposed();
if (this.isTooLargeForTokenization()) {
// Cannot word wrap huge files anyways, so it doesn't really matter
return false;
}
let smallLineCharCount = 0;
let longLineCharCount = 0;
const lineCount = this._buffer.getLineCount();
for (let lineNumber = 1; lineNumber <= lineCount; lineNumber++) {
const lineLength = this._buffer.getLineLength(lineNumber);
if (lineLength >= LONG_LINE_BOUNDARY) {
longLineCharCount += lineLength;
} else {
smallLineCharCount += lineLength;
}
}
return (longLineCharCount > smallLineCharCount);
}
public get uri(): URI {
return this._associatedResource;
}
//#region Options
public getOptions(): model.TextModelResolvedOptions {
this._assertNotDisposed();
return this._options;
}
public getFormattingOptions(): FormattingOptions {
return {
tabSize: this._options.indentSize,
insertSpaces: this._options.insertSpaces
};
}
public updateOptions(_newOpts: model.ITextModelUpdateOptions): void {
this._assertNotDisposed();
let tabSize = (typeof _newOpts.tabSize !== 'undefined') ? _newOpts.tabSize : this._options.tabSize;
let indentSize = (typeof _newOpts.indentSize !== 'undefined') ? _newOpts.indentSize : this._options.indentSize;
let insertSpaces = (typeof _newOpts.insertSpaces !== 'undefined') ? _newOpts.insertSpaces : this._options.insertSpaces;
let trimAutoWhitespace = (typeof _newOpts.trimAutoWhitespace !== 'undefined') ? _newOpts.trimAutoWhitespace : this._options.trimAutoWhitespace;
let newOpts = new model.TextModelResolvedOptions({
tabSize: tabSize,
indentSize: indentSize,
insertSpaces: insertSpaces,
defaultEOL: this._options.defaultEOL,
trimAutoWhitespace: trimAutoWhitespace
});
if (this._options.equals(newOpts)) {
return;
}
let e = this._options.createChangeEvent(newOpts);
this._options = newOpts;
this._onDidChangeOptions.fire(e);
}
public detectIndentation(defaultInsertSpaces: boolean, defaultTabSize: number): void {
this._assertNotDisposed();
let guessedIndentation = guessIndentation(this._buffer, defaultTabSize, defaultInsertSpaces);
this.updateOptions({
insertSpaces: guessedIndentation.insertSpaces,
tabSize: guessedIndentation.tabSize,
indentSize: guessedIndentation.tabSize, // TODO@Alex: guess indentSize independent of tabSize
});
}
private static _normalizeIndentationFromWhitespace(str: string, indentSize: number, insertSpaces: boolean): string {
let spacesCnt = 0;
for (let i = 0; i < str.length; i++) {
if (str.charAt(i) === '\t') {
spacesCnt += indentSize;
} else {
spacesCnt++;
}
}
let result = '';
if (!insertSpaces) {
let tabsCnt = Math.floor(spacesCnt / indentSize);
spacesCnt = spacesCnt % indentSize;
for (let i = 0; i < tabsCnt; i++) {
result += '\t';
}
}
for (let i = 0; i < spacesCnt; i++) {
result += ' ';
}
return result;
}
public static normalizeIndentation(str: string, indentSize: number, insertSpaces: boolean): string {
let firstNonWhitespaceIndex = strings.firstNonWhitespaceIndex(str);
if (firstNonWhitespaceIndex === -1) {
firstNonWhitespaceIndex = str.length;
}
return TextModel._normalizeIndentationFromWhitespace(str.substring(0, firstNonWhitespaceIndex), indentSize, insertSpaces) + str.substring(firstNonWhitespaceIndex);
}
public normalizeIndentation(str: string): string {
this._assertNotDisposed();
return TextModel.normalizeIndentation(str, this._options.indentSize, this._options.insertSpaces);
}
//#endregion
//#region Reading
public getVersionId(): number {
this._assertNotDisposed();
return this._versionId;
}
public mightContainRTL(): boolean {
return this._buffer.mightContainRTL();
}
public mightContainNonBasicASCII(): boolean {
return this._buffer.mightContainNonBasicASCII();
}
public getAlternativeVersionId(): number {
this._assertNotDisposed();
return this._alternativeVersionId;
}
public getOffsetAt(rawPosition: IPosition): number {
this._assertNotDisposed();
let position = this._validatePosition(rawPosition.lineNumber, rawPosition.column, StringOffsetValidationType.Relaxed);
return this._buffer.getOffsetAt(position.lineNumber, position.column);
}
public getPositionAt(rawOffset: number): Position {
this._assertNotDisposed();
let offset = (Math.min(this._buffer.getLength(), Math.max(0, rawOffset)));
return this._buffer.getPositionAt(offset);
}
private _increaseVersionId(): void {
this._versionId = this._versionId + 1;
this._alternativeVersionId = this._versionId;
}
private _overwriteAlternativeVersionId(newAlternativeVersionId: number): void {
this._alternativeVersionId = newAlternativeVersionId;
}
public getValue(eol?: model.EndOfLinePreference, preserveBOM: boolean = false): string {
this._assertNotDisposed();
const fullModelRange = this.getFullModelRange();
const fullModelValue = this.getValueInRange(fullModelRange, eol);
if (preserveBOM) {
return this._buffer.getBOM() + fullModelValue;
}
return fullModelValue;
}
public createSnapshot(preserveBOM: boolean = false): model.ITextSnapshot {
return new TextModelSnapshot(this._buffer.createSnapshot(preserveBOM));
}
public getValueLength(eol?: model.EndOfLinePreference, preserveBOM: boolean = false): number {
this._assertNotDisposed();
const fullModelRange = this.getFullModelRange();
const fullModelValue = this.getValueLengthInRange(fullModelRange, eol);
if (preserveBOM) {
return this._buffer.getBOM().length + fullModelValue;
}
return fullModelValue;
}
public getValueInRange(rawRange: IRange, eol: model.EndOfLinePreference = model.EndOfLinePreference.TextDefined): string {
this._assertNotDisposed();
return this._buffer.getValueInRange(this.validateRange(rawRange), eol);
}
public getValueLengthInRange(rawRange: IRange, eol: model.EndOfLinePreference = model.EndOfLinePreference.TextDefined): number {
this._assertNotDisposed();
return this._buffer.getValueLengthInRange(this.validateRange(rawRange), eol);
}
public getCharacterCountInRange(rawRange: IRange, eol: model.EndOfLinePreference = model.EndOfLinePreference.TextDefined): number {
this._assertNotDisposed();
return this._buffer.getCharacterCountInRange(this.validateRange(rawRange), eol);
}
public getLineCount(): number {
this._assertNotDisposed();
return this._buffer.getLineCount();
}
public getLineContent(lineNumber: number): string {
this._assertNotDisposed();
if (lineNumber < 1 || lineNumber > this.getLineCount()) {
throw new Error('Illegal value for lineNumber');
}
return this._buffer.getLineContent(lineNumber);
}
public getLineLength(lineNumber: number): number {
this._assertNotDisposed();
if (lineNumber < 1 || lineNumber > this.getLineCount()) {
throw new Error('Illegal value for lineNumber');
}
return this._buffer.getLineLength(lineNumber);
}
public getLinesContent(): string[] {
this._assertNotDisposed();
return this._buffer.getLinesContent();
}
public getEOL(): string {
this._assertNotDisposed();
return this._buffer.getEOL();
}
public getLineMinColumn(lineNumber: number): number {
this._assertNotDisposed();
return 1;
}
public getLineMaxColumn(lineNumber: number): number {
this._assertNotDisposed();
if (lineNumber < 1 || lineNumber > this.getLineCount()) {
throw new Error('Illegal value for lineNumber');
}
return this._buffer.getLineLength(lineNumber) + 1;
}
public getLineFirstNonWhitespaceColumn(lineNumber: number): number {
this._assertNotDisposed();
if (lineNumber < 1 || lineNumber > this.getLineCount()) {
throw new Error('Illegal value for lineNumber');
}
return this._buffer.getLineFirstNonWhitespaceColumn(lineNumber);
}
public getLineLastNonWhitespaceColumn(lineNumber: number): number {
this._assertNotDisposed();
if (lineNumber < 1 || lineNumber > this.getLineCount()) {
throw new Error('Illegal value for lineNumber');
}
return this._buffer.getLineLastNonWhitespaceColumn(lineNumber);
}
/**
* Validates `range` is within buffer bounds, but allows it to sit in between surrogate pairs, etc.
* Will try to not allocate if possible.
*/
private _validateRangeRelaxedNoAllocations(range: IRange): Range {
const linesCount = this._buffer.getLineCount();
const initialStartLineNumber = range.startLineNumber;
const initialStartColumn = range.startColumn;
let startLineNumber: number;
let startColumn: number;
if (initialStartLineNumber < 1) {
startLineNumber = 1;
startColumn = 1;
} else if (initialStartLineNumber > linesCount) {
startLineNumber = linesCount;
startColumn = this.getLineMaxColumn(startLineNumber);
} else {
startLineNumber = initialStartLineNumber | 0;
if (initialStartColumn <= 1) {
startColumn = 1;
} else {
const maxColumn = this.getLineMaxColumn(startLineNumber);
if (initialStartColumn >= maxColumn) {
startColumn = maxColumn;
} else {
startColumn = initialStartColumn | 0;
}
}
}
const initialEndLineNumber = range.endLineNumber;
const initialEndColumn = range.endColumn;
let endLineNumber: number;
let endColumn: number;
if (initialEndLineNumber < 1) {
endLineNumber = 1;
endColumn = 1;
} else if (initialEndLineNumber > linesCount) {
endLineNumber = linesCount;
endColumn = this.getLineMaxColumn(endLineNumber);
} else {
endLineNumber = initialEndLineNumber | 0;
if (initialEndColumn <= 1) {
endColumn = 1;
} else {
const maxColumn = this.getLineMaxColumn(endLineNumber);
if (initialEndColumn >= maxColumn) {
endColumn = maxColumn;
} else {
endColumn = initialEndColumn | 0;
}
}
}
if (
initialStartLineNumber === startLineNumber
&& initialStartColumn === startColumn
&& initialEndLineNumber === endLineNumber
&& initialEndColumn === endColumn
&& range instanceof Range
&& !(range instanceof Selection)
) {
return range;
}
return new Range(startLineNumber, startColumn, endLineNumber, endColumn);
}
private _isValidPosition(lineNumber: number, column: number, validationType: StringOffsetValidationType): boolean {
if (typeof lineNumber !== 'number' || typeof column !== 'number') {
return false;
}
if (isNaN(lineNumber) || isNaN(column)) {
return false;
}
if (lineNumber < 1 || column < 1) {
return false;
}
if ((lineNumber | 0) !== lineNumber || (column | 0) !== column) {
return false;
}
const lineCount = this._buffer.getLineCount();
if (lineNumber > lineCount) {
return false;
}
if (column === 1) {
return true;
}
const maxColumn = this.getLineMaxColumn(lineNumber);
if (column > maxColumn) {
return false;
}
if (validationType === StringOffsetValidationType.SurrogatePairs) {
// !!At this point, column > 1
const charCodeBefore = this._buffer.getLineCharCode(lineNumber, column - 2);
if (strings.isHighSurrogate(charCodeBefore)) {
return false;
}
}
return true;
}
private _validatePosition(_lineNumber: number, _column: number, validationType: StringOffsetValidationType): Position {
const lineNumber = Math.floor((typeof _lineNumber === 'number' && !isNaN(_lineNumber)) ? _lineNumber : 1);
const column = Math.floor((typeof _column === 'number' && !isNaN(_column)) ? _column : 1);
const lineCount = this._buffer.getLineCount();
if (lineNumber < 1) {
return new Position(1, 1);
}
if (lineNumber > lineCount) {
return new Position(lineCount, this.getLineMaxColumn(lineCount));
}
if (column <= 1) {
return new Position(lineNumber, 1);
}
const maxColumn = this.getLineMaxColumn(lineNumber);
if (column >= maxColumn) {
return new Position(lineNumber, maxColumn);
}
if (validationType === StringOffsetValidationType.SurrogatePairs) {
// If the position would end up in the middle of a high-low surrogate pair,
// we move it to before the pair
// !!At this point, column > 1
const charCodeBefore = this._buffer.getLineCharCode(lineNumber, column - 2);
if (strings.isHighSurrogate(charCodeBefore)) {
return new Position(lineNumber, column - 1);
}
}
return new Position(lineNumber, column);
}
public validatePosition(position: IPosition): Position {
const validationType = StringOffsetValidationType.SurrogatePairs;
this._assertNotDisposed();
// Avoid object allocation and cover most likely case
if (position instanceof Position) {
if (this._isValidPosition(position.lineNumber, position.column, validationType)) {
return position;
}
}
return this._validatePosition(position.lineNumber, position.column, validationType);
}
private _isValidRange(range: Range, validationType: StringOffsetValidationType): boolean {
const startLineNumber = range.startLineNumber;
const startColumn = range.startColumn;
const endLineNumber = range.endLineNumber;
const endColumn = range.endColumn;
if (!this._isValidPosition(startLineNumber, startColumn, StringOffsetValidationType.Relaxed)) {
return false;
}
if (!this._isValidPosition(endLineNumber, endColumn, StringOffsetValidationType.Relaxed)) {
return false;
}
if (validationType === StringOffsetValidationType.SurrogatePairs) {
const charCodeBeforeStart = (startColumn > 1 ? this._buffer.getLineCharCode(startLineNumber, startColumn - 2) : 0);
const charCodeBeforeEnd = (endColumn > 1 && endColumn <= this._buffer.getLineLength(endLineNumber) ? this._buffer.getLineCharCode(endLineNumber, endColumn - 2) : 0);
const startInsideSurrogatePair = strings.isHighSurrogate(charCodeBeforeStart);
const endInsideSurrogatePair = strings.isHighSurrogate(charCodeBeforeEnd);
if (!startInsideSurrogatePair && !endInsideSurrogatePair) {
return true;
}
return false;
}
return true;
}
public validateRange(_range: IRange): Range {
const validationType = StringOffsetValidationType.SurrogatePairs;
this._assertNotDisposed();
// Avoid object allocation and cover most likely case
if ((_range instanceof Range) && !(_range instanceof Selection)) {
if (this._isValidRange(_range, validationType)) {
return _range;
}
}
const start = this._validatePosition(_range.startLineNumber, _range.startColumn, StringOffsetValidationType.Relaxed);
const end = this._validatePosition(_range.endLineNumber, _range.endColumn, StringOffsetValidationType.Relaxed);
const startLineNumber = start.lineNumber;
const startColumn = start.column;
const endLineNumber = end.lineNumber;
const endColumn = end.column;
if (validationType === StringOffsetValidationType.SurrogatePairs) {
const charCodeBeforeStart = (startColumn > 1 ? this._buffer.getLineCharCode(startLineNumber, startColumn - 2) : 0);
const charCodeBeforeEnd = (endColumn > 1 && endColumn <= this._buffer.getLineLength(endLineNumber) ? this._buffer.getLineCharCode(endLineNumber, endColumn - 2) : 0);
const startInsideSurrogatePair = strings.isHighSurrogate(charCodeBeforeStart);
const endInsideSurrogatePair = strings.isHighSurrogate(charCodeBeforeEnd);
if (!startInsideSurrogatePair && !endInsideSurrogatePair) {
return new Range(startLineNumber, startColumn, endLineNumber, endColumn);
}
if (startLineNumber === endLineNumber && startColumn === endColumn) {
// do not expand a collapsed range, simply move it to a valid location
return new Range(startLineNumber, startColumn - 1, endLineNumber, endColumn - 1);
}
if (startInsideSurrogatePair && endInsideSurrogatePair) {
// expand range at both ends
return new Range(startLineNumber, startColumn - 1, endLineNumber, endColumn + 1);
}
if (startInsideSurrogatePair) {
// only expand range at the start
return new Range(startLineNumber, startColumn - 1, endLineNumber, endColumn);
}
// only expand range at the end
return new Range(startLineNumber, startColumn, endLineNumber, endColumn + 1);
}
return new Range(startLineNumber, startColumn, endLineNumber, endColumn);
}
public modifyPosition(rawPosition: IPosition, offset: number): Position {
this._assertNotDisposed();
let candidate = this.getOffsetAt(rawPosition) + offset;
return this.getPositionAt(Math.min(this._buffer.getLength(), Math.max(0, candidate)));
}
public getFullModelRange(): Range {
this._assertNotDisposed();
const lineCount = this.getLineCount();
return new Range(1, 1, lineCount, this.getLineMaxColumn(lineCount));
}
private findMatchesLineByLine(searchRange: Range, searchData: SearchData, captureMatches: boolean, limitResultCount: number): model.FindMatch[] {
return this._buffer.findMatchesLineByLine(searchRange, searchData, captureMatches, limitResultCount);
}
public findMatches(searchString: string, rawSearchScope: any, isRegex: boolean, matchCase: boolean, wordSeparators: string, captureMatches: boolean, limitResultCount: number = LIMIT_FIND_COUNT): model.FindMatch[] {
this._assertNotDisposed();
let searchRange: Range;
if (Range.isIRange(rawSearchScope)) {
searchRange = this.validateRange(rawSearchScope);
} else {
searchRange = this.getFullModelRange();
}
if (!isRegex && searchString.indexOf('\n') < 0) {
// not regex, not multi line
const searchParams = new SearchParams(searchString, isRegex, matchCase, wordSeparators);
const searchData = searchParams.parseSearchRequest();
if (!searchData) {
return [];
}
return this.findMatchesLineByLine(searchRange, searchData, captureMatches, limitResultCount);
}
return TextModelSearch.findMatches(this, new SearchParams(searchString, isRegex, matchCase, wordSeparators), searchRange, captureMatches, limitResultCount);
}
public findNextMatch(searchString: string, rawSearchStart: IPosition, isRegex: boolean, matchCase: boolean, wordSeparators: string, captureMatches: boolean): model.FindMatch | null {
this._assertNotDisposed();
const searchStart = this.validatePosition(rawSearchStart);
if (!isRegex && searchString.indexOf('\n') < 0) {
const searchParams = new SearchParams(searchString, isRegex, matchCase, wordSeparators);
const searchData = searchParams.parseSearchRequest();
if (!searchData) {
return null;
}
const lineCount = this.getLineCount();
let searchRange = new Range(searchStart.lineNumber, searchStart.column, lineCount, this.getLineMaxColumn(lineCount));
let ret = this.findMatchesLineByLine(searchRange, searchData, captureMatches, 1);
TextModelSearch.findNextMatch(this, new SearchParams(searchString, isRegex, matchCase, wordSeparators), searchStart, captureMatches);
if (ret.length > 0) {
return ret[0];
}
searchRange = new Range(1, 1, searchStart.lineNumber, this.getLineMaxColumn(searchStart.lineNumber));
ret = this.findMatchesLineByLine(searchRange, searchData, captureMatches, 1);
if (ret.length > 0) {
return ret[0];
}
return null;
}
return TextModelSearch.findNextMatch(this, new SearchParams(searchString, isRegex, matchCase, wordSeparators), searchStart, captureMatches);
}
public findPreviousMatch(searchString: string, rawSearchStart: IPosition, isRegex: boolean, matchCase: boolean, wordSeparators: string, captureMatches: boolean): model.FindMatch | null {
this._assertNotDisposed();
const searchStart = this.validatePosition(rawSearchStart);
return TextModelSearch.findPreviousMatch(this, new SearchParams(searchString, isRegex, matchCase, wordSeparators), searchStart, captureMatches);
}
//#endregion
//#region Editing
public pushStackElement(): void {
this._commandManager.pushStackElement();
}
public pushEOL(eol: model.EndOfLineSequence): void {
const currentEOL = (this.getEOL() === '\n' ? model.EndOfLineSequence.LF : model.EndOfLineSequence.CRLF);
if (currentEOL === eol) {
return;
}
try {
this._onDidChangeDecorations.beginDeferredEmit();
this._eventEmitter.beginDeferredEmit();
this._commandManager.pushEOL(eol);
} finally {
this._eventEmitter.endDeferredEmit();
this._onDidChangeDecorations.endDeferredEmit();
}
}
private _validateEditOperation(rawOperation: model.IIdentifiedSingleEditOperation): model.ValidAnnotatedEditOperation {
if (rawOperation instanceof model.ValidAnnotatedEditOperation) {
return rawOperation;
}
return new model.ValidAnnotatedEditOperation(
rawOperation.identifier || null,
this.validateRange(rawOperation.range),
rawOperation.text,
rawOperation.forceMoveMarkers || false,
rawOperation.isAutoWhitespaceEdit || false,
rawOperation._isTracked || false
);
}
private _validateEditOperations(rawOperations: model.IIdentifiedSingleEditOperation[]): model.ValidAnnotatedEditOperation[] {
const result: model.ValidAnnotatedEditOperation[] = [];
for (let i = 0, len = rawOperations.length; i < len; i++) {
result[i] = this._validateEditOperation(rawOperations[i]);
}
return result;
}
public pushEditOperations(beforeCursorState: Selection[], editOperations: model.IIdentifiedSingleEditOperation[], cursorStateComputer: model.ICursorStateComputer | null): Selection[] | null {
try {
this._onDidChangeDecorations.beginDeferredEmit();
this._eventEmitter.beginDeferredEmit();
return this._pushEditOperations(beforeCursorState, this._validateEditOperations(editOperations), cursorStateComputer);
} finally {
this._eventEmitter.endDeferredEmit();
this._onDidChangeDecorations.endDeferredEmit();
}
}
private _pushEditOperations(beforeCursorState: Selection[], editOperations: model.ValidAnnotatedEditOperation[], cursorStateComputer: model.ICursorStateComputer | null): Selection[] | null {
if (this._options.trimAutoWhitespace && this._trimAutoWhitespaceLines) {
// Go through each saved line number and insert a trim whitespace edit
// if it is safe to do so (no conflicts with other edits).
let incomingEdits = editOperations.map((op) => {
return {
range: this.validateRange(op.range),
text: op.text
};
});
// Sometimes, auto-formatters change ranges automatically which can cause undesired auto whitespace trimming near the cursor
// We'll use the following heuristic: if the edits occur near the cursor, then it's ok to trim auto whitespace
let editsAreNearCursors = true;
for (let i = 0, len = beforeCursorState.length; i < len; i++) {
let sel = beforeCursorState[i];
let foundEditNearSel = false;
for (let j = 0, lenJ = incomingEdits.length; j < lenJ; j++) {
let editRange = incomingEdits[j].range;
let selIsAbove = editRange.startLineNumber > sel.endLineNumber;
let selIsBelow = sel.startLineNumber > editRange.endLineNumber;
if (!selIsAbove && !selIsBelow) {
foundEditNearSel = true;
break;
}
}
if (!foundEditNearSel) {
editsAreNearCursors = false;
break;
}
}
if (editsAreNearCursors) {
for (let i = 0, len = this._trimAutoWhitespaceLines.length; i < len; i++) {
let trimLineNumber = this._trimAutoWhitespaceLines[i];
let maxLineColumn = this.getLineMaxColumn(trimLineNumber);
let allowTrimLine = true;
for (let j = 0, lenJ = incomingEdits.length; j < lenJ; j++) {
let editRange = incomingEdits[j].range;
let editText = incomingEdits[j].text;
if (trimLineNumber < editRange.startLineNumber || trimLineNumber > editRange.endLineNumber) {
// `trimLine` is completely outside this edit
continue;
}
// At this point:
// editRange.startLineNumber <= trimLine <= editRange.endLineNumber
if (
trimLineNumber === editRange.startLineNumber && editRange.startColumn === maxLineColumn
&& editRange.isEmpty() && editText && editText.length > 0 && editText.charAt(0) === '\n'
) {
// This edit inserts a new line (and maybe other text) after `trimLine`
continue;
}
if (
trimLineNumber === editRange.startLineNumber && editRange.startColumn === 1
&& editRange.isEmpty() && editText && editText.length > 0 && editText.charAt(editText.length - 1) === '\n'
) {
// This edit inserts a new line (and maybe other text) before `trimLine`
continue;
}
// Looks like we can't trim this line as it would interfere with an incoming edit
allowTrimLine = false;
break;
}
if (allowTrimLine) {
const trimRange = new Range(trimLineNumber, 1, trimLineNumber, maxLineColumn);
editOperations.push(new model.ValidAnnotatedEditOperation(null, trimRange, null, false, false, false));
}
}
}
this._trimAutoWhitespaceLines = null;
}
return this._commandManager.pushEditOperation(beforeCursorState, editOperations, cursorStateComputer);
}
_applyEdits(edits: model.IValidEditOperations[], isUndoing: boolean, isRedoing: boolean, resultingAlternativeVersionId: number, resultingSelection: Selection[] | null): model.IValidEditOperations[] {
try {
this._onDidChangeDecorations.beginDeferredEmit();
this._eventEmitter.beginDeferredEmit();
this._isUndoing = isUndoing;
this._isRedoing = isRedoing;
let reverseEdits: model.IValidEditOperations[] = [];
for (let i = 0, len = edits.length; i < len; i++) {
reverseEdits[i] = { operations: this.applyEdits(edits[i].operations) };
}
this._overwriteAlternativeVersionId(resultingAlternativeVersionId);
return reverseEdits;
} finally {
this._isUndoing = false;
this._eventEmitter.endDeferredEmit(resultingSelection);
this._onDidChangeDecorations.endDeferredEmit();
}
}
public applyEdits(rawOperations: model.IIdentifiedSingleEditOperation[]): model.IValidEditOperation[] {
try {
this._onDidChangeDecorations.beginDeferredEmit();
this._eventEmitter.beginDeferredEmit();
return this._doApplyEdits(this._validateEditOperations(rawOperations));
} finally {
this._eventEmitter.endDeferredEmit();
this._onDidChangeDecorations.endDeferredEmit();
}
}
private _doApplyEdits(rawOperations: model.ValidAnnotatedEditOperation[]): model.IValidEditOperation[] {
const oldLineCount = this._buffer.getLineCount();
const result = this._buffer.applyEdits(rawOperations, this._options.trimAutoWhitespace);
const newLineCount = this._buffer.getLineCount();
const contentChanges = result.changes;
this._trimAutoWhitespaceLines = result.trimAutoWhitespaceLineNumbers;
if (contentChanges.length !== 0) {
let rawContentChanges: ModelRawChange[] = [];
let lineCount = oldLineCount;
for (let i = 0, len = contentChanges.length; i < len; i++) {
const change = contentChanges[i];
const [eolCount, firstLineLength, lastLineLength] = countEOL(change.text);
this._tokens.acceptEdit(change.range, eolCount, firstLineLength);
this._tokens2.acceptEdit(change.range, eolCount, firstLineLength, lastLineLength, change.text.length > 0 ? change.text.charCodeAt(0) : CharCode.Null);
this._onDidChangeDecorations.fire();
this._decorationsTree.acceptReplace(change.rangeOffset, change.rangeLength, change.text.length, change.forceMoveMarkers);
const startLineNumber = change.range.startLineNumber;
const endLineNumber = change.range.endLineNumber;
const deletingLinesCnt = endLineNumber - startLineNumber;
const insertingLinesCnt = eolCount;
const editingLinesCnt = Math.min(deletingLinesCnt, insertingLinesCnt);
const changeLineCountDelta = (insertingLinesCnt - deletingLinesCnt);
for (let j = editingLinesCnt; j >= 0; j--) {
const editLineNumber = startLineNumber + j;
const currentEditLineNumber = newLineCount - lineCount - changeLineCountDelta + editLineNumber;
rawContentChanges.push(new ModelRawLineChanged(editLineNumber, this.getLineContent(currentEditLineNumber)));
}
if (editingLinesCnt < deletingLinesCnt) {
// Must delete some lines
const spliceStartLineNumber = startLineNumber + editingLinesCnt;
rawContentChanges.push(new ModelRawLinesDeleted(spliceStartLineNumber + 1, endLineNumber));
}
if (editingLinesCnt < insertingLinesCnt) {
// Must insert some lines
const spliceLineNumber = startLineNumber + editingLinesCnt;
const cnt = insertingLinesCnt - editingLinesCnt;
const fromLineNumber = newLineCount - lineCount - cnt + spliceLineNumber + 1;
let newLines: string[] = [];
for (let i = 0; i < cnt; i++) {
let lineNumber = fromLineNumber + i;
newLines[lineNumber - fromLineNumber] = this.getLineContent(lineNumber);
}
rawContentChanges.push(new ModelRawLinesInserted(spliceLineNumber + 1, startLineNumber + insertingLinesCnt, newLines));
}
lineCount += changeLineCountDelta;
}
this._increaseVersionId();
this._emitContentChangedEvent(
new ModelRawContentChangedEvent(
rawContentChanges,
this.getVersionId(),
this._isUndoing,
this._isRedoing
),
{
changes: contentChanges,
eol: this._buffer.getEOL(),
versionId: this.getVersionId(),
isUndoing: this._isUndoing,
isRedoing: this._isRedoing,
isFlush: false
}
);
}
return result.reverseEdits;
}
public undo(): void {
this._undoRedoService.undo(this.uri);
}
public canUndo(): boolean {
return this._undoRedoService.canUndo(this.uri);
}
public redo(): void {
this._undoRedoService.redo(this.uri);
}
public canRedo(): boolean {
return this._undoRedoService.canRedo(this.uri);
}
//#endregion
//#region Decorations
public changeDecorations<T>(callback: (changeAccessor: model.IModelDecorationsChangeAccessor) => T, ownerId: number = 0): T | null {
this._assertNotDisposed();
try {
this._onDidChangeDecorations.beginDeferredEmit();
return this._changeDecorations(ownerId, callback);
} finally {
this._onDidChangeDecorations.endDeferredEmit();
}
}
private _changeDecorations<T>(ownerId: number, callback: (changeAccessor: model.IModelDecorationsChangeAccessor) => T): T | null {
let changeAccessor: model.IModelDecorationsChangeAccessor = {
addDecoration: (range: IRange, options: model.IModelDecorationOptions): string => {
return this._deltaDecorationsImpl(ownerId, [], [{ range: range, options: options }])[0];
},
changeDecoration: (id: string, newRange: IRange): void => {
this._changeDecorationImpl(id, newRange);
},
changeDecorationOptions: (id: string, options: model.IModelDecorationOptions) => {
this._changeDecorationOptionsImpl(id, _normalizeOptions(options));
},
removeDecoration: (id: string): void => {
this._deltaDecorationsImpl(ownerId, [id], []);
},
deltaDecorations: (oldDecorations: string[], newDecorations: model.IModelDeltaDecoration[]): string[] => {
if (oldDecorations.length === 0 && newDecorations.length === 0) {
// nothing to do
return [];
}
return this._deltaDecorationsImpl(ownerId, oldDecorations, newDecorations);
}
};
let result: T | null = null;
try {
result = callback(changeAccessor);
} catch (e) {
onUnexpectedError(e);
}
// Invalidate change accessor
changeAccessor.addDecoration = invalidFunc;
changeAccessor.changeDecoration = invalidFunc;
changeAccessor.changeDecorationOptions = invalidFunc;
changeAccessor.removeDecoration = invalidFunc;
changeAccessor.deltaDecorations = invalidFunc;
return result;
}
public deltaDecorations(oldDecorations: string[], newDecorations: model.IModelDeltaDecoration[], ownerId: number = 0): string[] {
this._assertNotDisposed();
if (!oldDecorations) {
oldDecorations = [];
}
if (oldDecorations.length === 0 && newDecorations.length === 0) {
// nothing to do
return [];
}
try {
this._onDidChangeDecorations.beginDeferredEmit();
return this._deltaDecorationsImpl(ownerId, oldDecorations, newDecorations);
} finally {
this._onDidChangeDecorations.endDeferredEmit();
}
}
_getTrackedRange(id: string): Range | null {
return this.getDecorationRange(id);
}
_setTrackedRange(id: string | null, newRange: null, newStickiness: model.TrackedRangeStickiness): null;
_setTrackedRange(id: string | null, newRange: Range, newStickiness: model.TrackedRangeStickiness): string;
_setTrackedRange(id: string | null, newRange: Range | null, newStickiness: model.TrackedRangeStickiness): string | null {
const node = (id ? this._decorations[id] : null);
if (!node) {
if (!newRange) {
// node doesn't exist, the request is to delete => nothing to do
return null;
}
// node doesn't exist, the request is to set => add the tracked range
return this._deltaDecorationsImpl(0, [], [{ range: newRange, options: TRACKED_RANGE_OPTIONS[newStickiness] }])[0];
}
if (!newRange) {
// node exists, the request is to delete => delete node
this._decorationsTree.delete(node);
delete this._decorations[node.id];
return null;
}
// node exists, the request is to set => change the tracked range and its options
const range = this._validateRangeRelaxedNoAllocations(newRange);
const startOffset = this._buffer.getOffsetAt(range.startLineNumber, range.startColumn);
const endOffset = this._buffer.getOffsetAt(range.endLineNumber, range.endColumn);
this._decorationsTree.delete(node);
node.reset(this.getVersionId(), startOffset, endOffset, range);
node.setOptions(TRACKED_RANGE_OPTIONS[newStickiness]);
this._decorationsTree.insert(node);
return node.id;
}
public removeAllDecorationsWithOwnerId(ownerId: number): void {
if (this._isDisposed) {
return;
}
const nodes = this._decorationsTree.collectNodesFromOwner(ownerId);
for (let i = 0, len = nodes.length; i < len; i++) {
const node = nodes[i];
this._decorationsTree.delete(node);
delete this._decorations[node.id];
}
}
public getDecorationOptions(decorationId: string): model.IModelDecorationOptions | null {
const node = this._decorations[decorationId];
if (!node) {
return null;
}
return node.options;
}
public getDecorationRange(decorationId: string): Range | null {
const node = this._decorations[decorationId];
if (!node) {
return null;
}
const versionId = this.getVersionId();
if (node.cachedVersionId !== versionId) {
this._decorationsTree.resolveNode(node, versionId);
}
if (node.range === null) {
node.range = this._getRangeAt(node.cachedAbsoluteStart, node.cachedAbsoluteEnd);
}
return node.range;
}
public getLineDecorations(lineNumber: number, ownerId: number = 0, filterOutValidation: boolean = false): model.IModelDecoration[] {
if (lineNumber < 1 || lineNumber > this.getLineCount()) {
return [];
}
return this.getLinesDecorations(lineNumber, lineNumber, ownerId, filterOutValidation);
}
public getLinesDecorations(_startLineNumber: number, _endLineNumber: number, ownerId: number = 0, filterOutValidation: boolean = false): model.IModelDecoration[] {
let lineCount = this.getLineCount();
let startLineNumber = Math.min(lineCount, Math.max(1, _startLineNumber));
let endLineNumber = Math.min(lineCount, Math.max(1, _endLineNumber));
let endColumn = this.getLineMaxColumn(endLineNumber);
return this._getDecorationsInRange(new Range(startLineNumber, 1, endLineNumber, endColumn), ownerId, filterOutValidation);
}
public getDecorationsInRange(range: IRange, ownerId: number = 0, filterOutValidation: boolean = false): model.IModelDecoration[] {
let validatedRange = this.validateRange(range);
return this._getDecorationsInRange(validatedRange, ownerId, filterOutValidation);
}
public getOverviewRulerDecorations(ownerId: number = 0, filterOutValidation: boolean = false): model.IModelDecoration[] {
const versionId = this.getVersionId();
const result = this._decorationsTree.search(ownerId, filterOutValidation, true, versionId);
return this._ensureNodesHaveRanges(result);
}
public getAllDecorations(ownerId: number = 0, filterOutValidation: boolean = false): model.IModelDecoration[] {
const versionId = this.getVersionId();
const result = this._decorationsTree.search(ownerId, filterOutValidation, false, versionId);
return this._ensureNodesHaveRanges(result);
}
private _getDecorationsInRange(filterRange: Range, filterOwnerId: number, filterOutValidation: boolean): IntervalNode[] {
const startOffset = this._buffer.getOffsetAt(filterRange.startLineNumber, filterRange.startColumn);
const endOffset = this._buffer.getOffsetAt(filterRange.endLineNumber, filterRange.endColumn);
const versionId = this.getVersionId();
const result = this._decorationsTree.intervalSearch(startOffset, endOffset, filterOwnerId, filterOutValidation, versionId);
return this._ensureNodesHaveRanges(result);
}
private _ensureNodesHaveRanges(nodes: IntervalNode[]): IntervalNode[] {
for (let i = 0, len = nodes.length; i < len; i++) {
const node = nodes[i];
if (node.range === null) {
node.range = this._getRangeAt(node.cachedAbsoluteStart, node.cachedAbsoluteEnd);
}
}
return nodes;
}
private _getRangeAt(start: number, end: number): Range {
return this._buffer.getRangeAt(start, end - start);
}
private _changeDecorationImpl(decorationId: string, _range: IRange): void {
const node = this._decorations[decorationId];
if (!node) {
return;
}
const range = this._validateRangeRelaxedNoAllocations(_range);
const startOffset = this._buffer.getOffsetAt(range.startLineNumber, range.startColumn);
const endOffset = this._buffer.getOffsetAt(range.endLineNumber, range.endColumn);
this._decorationsTree.delete(node);
node.reset(this.getVersionId(), startOffset, endOffset, range);
this._decorationsTree.insert(node);
this._onDidChangeDecorations.checkAffectedAndFire(node.options);
}
private _changeDecorationOptionsImpl(decorationId: string, options: ModelDecorationOptions): void {
const node = this._decorations[decorationId];
if (!node) {
return;
}
const nodeWasInOverviewRuler = (node.options.overviewRuler && node.options.overviewRuler.color ? true : false);
const nodeIsInOverviewRuler = (options.overviewRuler && options.overviewRuler.color ? true : false);
this._onDidChangeDecorations.checkAffectedAndFire(node.options);
this._onDidChangeDecorations.checkAffectedAndFire(options);
if (nodeWasInOverviewRuler !== nodeIsInOverviewRuler) {
// Delete + Insert due to an overview ruler status change
this._decorationsTree.delete(node);
node.setOptions(options);
this._decorationsTree.insert(node);
} else {
node.setOptions(options);
}
}
private _deltaDecorationsImpl(ownerId: number, oldDecorationsIds: string[], newDecorations: model.IModelDeltaDecoration[]): string[] {
const versionId = this.getVersionId();
const oldDecorationsLen = oldDecorationsIds.length;
let oldDecorationIndex = 0;
const newDecorationsLen = newDecorations.length;
let newDecorationIndex = 0;
let result = new Array<string>(newDecorationsLen);
while (oldDecorationIndex < oldDecorationsLen || newDecorationIndex < newDecorationsLen) {
let node: IntervalNode | null = null;
if (oldDecorationIndex < oldDecorationsLen) {
// (1) get ourselves an old node
do {
node = this._decorations[oldDecorationsIds[oldDecorationIndex++]];
} while (!node && oldDecorationIndex < oldDecorationsLen);
// (2) remove the node from the tree (if it exists)
if (node) {
this._decorationsTree.delete(node);
this._onDidChangeDecorations.checkAffectedAndFire(node.options);
}
}
if (newDecorationIndex < newDecorationsLen) {
// (3) create a new node if necessary
if (!node) {
const internalDecorationId = (++this._lastDecorationId);
const decorationId = `${this._instanceId};${internalDecorationId}`;
node = new IntervalNode(decorationId, 0, 0);
this._decorations[decorationId] = node;
}
// (4) initialize node
const newDecoration = newDecorations[newDecorationIndex];
const range = this._validateRangeRelaxedNoAllocations(newDecoration.range);
const options = _normalizeOptions(newDecoration.options);
const startOffset = this._buffer.getOffsetAt(range.startLineNumber, range.startColumn);
const endOffset = this._buffer.getOffsetAt(range.endLineNumber, range.endColumn);
node.ownerId = ownerId;
node.reset(versionId, startOffset, endOffset, range);
node.setOptions(options);
this._onDidChangeDecorations.checkAffectedAndFire(options);
this._decorationsTree.insert(node);
result[newDecorationIndex] = node.id;
newDecorationIndex++;
} else {
if (node) {
delete this._decorations[node.id];
}
}
}
return result;
}
//#endregion
//#region Tokenization
public setLineTokens(lineNumber: number, tokens: Uint32Array | ArrayBuffer | null): void {
if (lineNumber < 1 || lineNumber > this.getLineCount()) {
throw new Error('Illegal value for lineNumber');
}
this._tokens.setTokens(this._languageIdentifier.id, lineNumber - 1, this._buffer.getLineLength(lineNumber), tokens, false);
}
public setTokens(tokens: MultilineTokens[]): void {
if (tokens.length === 0) {
return;
}
let ranges: { fromLineNumber: number; toLineNumber: number; }[] = [];
for (let i = 0, len = tokens.length; i < len; i++) {
const element = tokens[i];
let minChangedLineNumber = 0;
let maxChangedLineNumber = 0;
let hasChange = false;
for (let j = 0, lenJ = element.tokens.length; j < lenJ; j++) {
const lineNumber = element.startLineNumber + j;
if (hasChange) {
this._tokens.setTokens(this._languageIdentifier.id, lineNumber - 1, this._buffer.getLineLength(lineNumber), element.tokens[j], false);
maxChangedLineNumber = lineNumber;
} else {
const lineHasChange = this._tokens.setTokens(this._languageIdentifier.id, lineNumber - 1, this._buffer.getLineLength(lineNumber), element.tokens[j], true);
if (lineHasChange) {
hasChange = true;
minChangedLineNumber = lineNumber;
maxChangedLineNumber = lineNumber;
}
}
}
if (hasChange) {
ranges.push({ fromLineNumber: minChangedLineNumber, toLineNumber: maxChangedLineNumber });
}
}
if (ranges.length > 0) {
this._emitModelTokensChangedEvent({
tokenizationSupportChanged: false,
ranges: ranges
});
}
}
public setSemanticTokens(tokens: MultilineTokens2[] | null): void {
this._tokens2.set(tokens);
this._emitModelTokensChangedEvent({
tokenizationSupportChanged: false,
ranges: [{ fromLineNumber: 1, toLineNumber: this.getLineCount() }]
});
}
public tokenizeViewport(startLineNumber: number, endLineNumber: number): void {
startLineNumber = Math.max(1, startLineNumber);
endLineNumber = Math.min(this._buffer.getLineCount(), endLineNumber);
this._tokenization.tokenizeViewport(startLineNumber, endLineNumber);
}
public clearTokens(): void {
this._tokens.flush();
this._emitModelTokensChangedEvent({
tokenizationSupportChanged: true,
ranges: [{
fromLineNumber: 1,
toLineNumber: this._buffer.getLineCount()
}]
});
}
public clearSemanticTokens(): void {
this._tokens2.flush();
this._emitModelTokensChangedEvent({
tokenizationSupportChanged: false,
ranges: [{ fromLineNumber: 1, toLineNumber: this.getLineCount() }]
});
}
private _emitModelTokensChangedEvent(e: IModelTokensChangedEvent): void {
if (!this._isDisposing) {
this._onDidChangeTokens.fire(e);
}
}
public resetTokenization(): void {
this._tokenization.reset();
}
public forceTokenization(lineNumber: number): void {
if (lineNumber < 1 || lineNumber > this.getLineCount()) {
throw new Error('Illegal value for lineNumber');
}
this._tokenization.forceTokenization(lineNumber);
}
public isCheapToTokenize(lineNumber: number): boolean {
return this._tokenization.isCheapToTokenize(lineNumber);
}
public tokenizeIfCheap(lineNumber: number): void {
if (this.isCheapToTokenize(lineNumber)) {
this.forceTokenization(lineNumber);
}
}
public getLineTokens(lineNumber: number): LineTokens {
if (lineNumber < 1 || lineNumber > this.getLineCount()) {
throw new Error('Illegal value for lineNumber');
}
return this._getLineTokens(lineNumber);
}
private _getLineTokens(lineNumber: number): LineTokens {
const lineText = this.getLineContent(lineNumber);
const syntacticTokens = this._tokens.getTokens(this._languageIdentifier.id, lineNumber - 1, lineText);
return this._tokens2.addSemanticTokens(lineNumber, syntacticTokens);
}
public getLanguageIdentifier(): LanguageIdentifier {
return this._languageIdentifier;
}
public getModeId(): string {
return this._languageIdentifier.language;
}
public setMode(languageIdentifier: LanguageIdentifier): void {
if (this._languageIdentifier.id === languageIdentifier.id) {
// There's nothing to do
return;
}
let e: IModelLanguageChangedEvent = {
oldLanguage: this._languageIdentifier.language,
newLanguage: languageIdentifier.language
};
this._languageIdentifier = languageIdentifier;
this._onDidChangeLanguage.fire(e);
this._onDidChangeLanguageConfiguration.fire({});
}
public getLanguageIdAtPosition(lineNumber: number, column: number): LanguageId {
const position = this.validatePosition(new Position(lineNumber, column));
const lineTokens = this.getLineTokens(position.lineNumber);
return lineTokens.getLanguageId(lineTokens.findTokenIndexAtOffset(position.column - 1));
}
// Having tokens allows implementing additional helper methods
public getWordAtPosition(_position: IPosition): model.IWordAtPosition | null {
this._assertNotDisposed();
const position = this.validatePosition(_position);
const lineContent = this.getLineContent(position.lineNumber);
const lineTokens = this._getLineTokens(position.lineNumber);
const tokenIndex = lineTokens.findTokenIndexAtOffset(position.column - 1);
// (1). First try checking right biased word
const [rbStartOffset, rbEndOffset] = TextModel._findLanguageBoundaries(lineTokens, tokenIndex);
const rightBiasedWord = getWordAtText(
position.column,
LanguageConfigurationRegistry.getWordDefinition(lineTokens.getLanguageId(tokenIndex)),
lineContent.substring(rbStartOffset, rbEndOffset),
rbStartOffset
);
// Make sure the result touches the original passed in position
if (rightBiasedWord && rightBiasedWord.startColumn <= _position.column && _position.column <= rightBiasedWord.endColumn) {
return rightBiasedWord;
}
// (2). Else, if we were at a language boundary, check the left biased word
if (tokenIndex > 0 && rbStartOffset === position.column - 1) {
// edge case, where `position` sits between two tokens belonging to two different languages
const [lbStartOffset, lbEndOffset] = TextModel._findLanguageBoundaries(lineTokens, tokenIndex - 1);
const leftBiasedWord = getWordAtText(
position.column,
LanguageConfigurationRegistry.getWordDefinition(lineTokens.getLanguageId(tokenIndex - 1)),
lineContent.substring(lbStartOffset, lbEndOffset),
lbStartOffset
);
// Make sure the result touches the original passed in position
if (leftBiasedWord && leftBiasedWord.startColumn <= _position.column && _position.column <= leftBiasedWord.endColumn) {
return leftBiasedWord;
}
}
return null;
}
private static _findLanguageBoundaries(lineTokens: LineTokens, tokenIndex: number): [number, number] {
const languageId = lineTokens.getLanguageId(tokenIndex);
// go left until a different language is hit
let startOffset = 0;
for (let i = tokenIndex; i >= 0 && lineTokens.getLanguageId(i) === languageId; i--) {
startOffset = lineTokens.getStartOffset(i);
}
// go right until a different language is hit
let endOffset = lineTokens.getLineContent().length;
for (let i = tokenIndex, tokenCount = lineTokens.getCount(); i < tokenCount && lineTokens.getLanguageId(i) === languageId; i++) {
endOffset = lineTokens.getEndOffset(i);
}
return [startOffset, endOffset];
}
public getWordUntilPosition(position: IPosition): model.IWordAtPosition {
const wordAtPosition = this.getWordAtPosition(position);
if (!wordAtPosition) {
return {
word: '',
startColumn: position.column,
endColumn: position.column
};
}
return {
word: wordAtPosition.word.substr(0, position.column - wordAtPosition.startColumn),
startColumn: wordAtPosition.startColumn,
endColumn: position.column
};
}
public findMatchingBracketUp(_bracket: string, _position: IPosition): Range | null {
let bracket = _bracket.toLowerCase();
let position = this.validatePosition(_position);
let lineTokens = this._getLineTokens(position.lineNumber);
let languageId = lineTokens.getLanguageId(lineTokens.findTokenIndexAtOffset(position.column - 1));
let bracketsSupport = LanguageConfigurationRegistry.getBracketsSupport(languageId);
if (!bracketsSupport) {
return null;
}
let data = bracketsSupport.textIsBracket[bracket];
if (!data) {
return null;
}
return this._findMatchingBracketUp(data, position);
}
public matchBracket(position: IPosition): [Range, Range] | null {
return this._matchBracket(this.validatePosition(position));
}
private _matchBracket(position: Position): [Range, Range] | null {
const lineNumber = position.lineNumber;
const lineTokens = this._getLineTokens(lineNumber);
const tokenCount = lineTokens.getCount();
const lineText = this._buffer.getLineContent(lineNumber);
const tokenIndex = lineTokens.findTokenIndexAtOffset(position.column - 1);
if (tokenIndex < 0) {
return null;
}
const currentModeBrackets = LanguageConfigurationRegistry.getBracketsSupport(lineTokens.getLanguageId(tokenIndex));
// check that the token is not to be ignored
if (currentModeBrackets && !ignoreBracketsInToken(lineTokens.getStandardTokenType(tokenIndex))) {
// limit search to not go before `maxBracketLength`
let searchStartOffset = Math.max(0, position.column - 1 - currentModeBrackets.maxBracketLength);
for (let i = tokenIndex - 1; i >= 0; i--) {
const tokenEndOffset = lineTokens.getEndOffset(i);
if (tokenEndOffset <= searchStartOffset) {
break;
}
if (ignoreBracketsInToken(lineTokens.getStandardTokenType(i))) {
searchStartOffset = tokenEndOffset;
}
}
// limit search to not go after `maxBracketLength`
const searchEndOffset = Math.min(lineText.length, position.column - 1 + currentModeBrackets.maxBracketLength);
// it might be the case that [currentTokenStart -> currentTokenEnd] contains multiple brackets
// `bestResult` will contain the most right-side result
let bestResult: [Range, Range] | null = null;
while (true) {
const foundBracket = BracketsUtils.findNextBracketInRange(currentModeBrackets.forwardRegex, lineNumber, lineText, searchStartOffset, searchEndOffset);
if (!foundBracket) {
// there are no more brackets in this text
break;
}
// check that we didn't hit a bracket too far away from position
if (foundBracket.startColumn <= position.column && position.column <= foundBracket.endColumn) {
const foundBracketText = lineText.substring(foundBracket.startColumn - 1, foundBracket.endColumn - 1).toLowerCase();
const r = this._matchFoundBracket(foundBracket, currentModeBrackets.textIsBracket[foundBracketText], currentModeBrackets.textIsOpenBracket[foundBracketText]);
if (r) {
bestResult = r;
}
}
searchStartOffset = foundBracket.endColumn - 1;
}
if (bestResult) {
return bestResult;
}
}
// If position is in between two tokens, try also looking in the previous token
if (tokenIndex > 0 && lineTokens.getStartOffset(tokenIndex) === position.column - 1) {
const prevTokenIndex = tokenIndex - 1;
const prevModeBrackets = LanguageConfigurationRegistry.getBracketsSupport(lineTokens.getLanguageId(prevTokenIndex));
// check that previous token is not to be ignored
if (prevModeBrackets && !ignoreBracketsInToken(lineTokens.getStandardTokenType(prevTokenIndex))) {
// limit search in case previous token is very large, there's no need to go beyond `maxBracketLength`
const searchStartOffset = Math.max(0, position.column - 1 - prevModeBrackets.maxBracketLength);
let searchEndOffset = Math.min(lineText.length, position.column - 1 + prevModeBrackets.maxBracketLength);
for (let i = prevTokenIndex + 1; i < tokenCount; i++) {
const tokenStartOffset = lineTokens.getStartOffset(i);
if (tokenStartOffset >= searchEndOffset) {
break;
}
if (ignoreBracketsInToken(lineTokens.getStandardTokenType(i))) {
searchEndOffset = tokenStartOffset;
}
}
const foundBracket = BracketsUtils.findPrevBracketInRange(prevModeBrackets.reversedRegex, lineNumber, lineText, searchStartOffset, searchEndOffset);
// check that we didn't hit a bracket too far away from position
if (foundBracket && foundBracket.startColumn <= position.column && position.column <= foundBracket.endColumn) {
const foundBracketText = lineText.substring(foundBracket.startColumn - 1, foundBracket.endColumn - 1).toLowerCase();
const r = this._matchFoundBracket(foundBracket, prevModeBrackets.textIsBracket[foundBracketText], prevModeBrackets.textIsOpenBracket[foundBracketText]);
if (r) {
return r;
}
}
}
}
return null;
}
private _matchFoundBracket(foundBracket: Range, data: RichEditBracket, isOpen: boolean): [Range, Range] | null {
if (!data) {
return null;
}
if (isOpen) {
let matched = this._findMatchingBracketDown(data, foundBracket.getEndPosition());
if (matched) {
return [foundBracket, matched];
}
} else {
let matched = this._findMatchingBracketUp(data, foundBracket.getStartPosition());
if (matched) {
return [foundBracket, matched];
}
}
return null;
}
private _findMatchingBracketUp(bracket: RichEditBracket, position: Position): Range | null {
// console.log('_findMatchingBracketUp: ', 'bracket: ', JSON.stringify(bracket), 'startPosition: ', String(position));
const languageId = bracket.languageIdentifier.id;
const reversedBracketRegex = bracket.reversedRegex;
let count = -1;
const searchPrevMatchingBracketInRange = (lineNumber: number, lineText: string, searchStartOffset: number, searchEndOffset: number): Range | null => {
while (true) {
const r = BracketsUtils.findPrevBracketInRange(reversedBracketRegex, lineNumber, lineText, searchStartOffset, searchEndOffset);
if (!r) {
break;
}
const hitText = lineText.substring(r.startColumn - 1, r.endColumn - 1).toLowerCase();
if (bracket.isOpen(hitText)) {
count++;
} else if (bracket.isClose(hitText)) {
count--;
}
if (count === 0) {
return r;
}
searchEndOffset = r.startColumn - 1;
}
return null;
};
for (let lineNumber = position.lineNumber; lineNumber >= 1; lineNumber--) {
const lineTokens = this._getLineTokens(lineNumber);
const tokenCount = lineTokens.getCount();
const lineText = this._buffer.getLineContent(lineNumber);
let tokenIndex = tokenCount - 1;
let searchStartOffset = lineText.length;
let searchEndOffset = lineText.length;
if (lineNumber === position.lineNumber) {
tokenIndex = lineTokens.findTokenIndexAtOffset(position.column - 1);
searchStartOffset = position.column - 1;
searchEndOffset = position.column - 1;
}
let prevSearchInToken = true;
for (; tokenIndex >= 0; tokenIndex--) {
const searchInToken = (lineTokens.getLanguageId(tokenIndex) === languageId && !ignoreBracketsInToken(lineTokens.getStandardTokenType(tokenIndex)));
if (searchInToken) {
// this token should be searched
if (prevSearchInToken) {
// the previous token should be searched, simply extend searchStartOffset
searchStartOffset = lineTokens.getStartOffset(tokenIndex);
} else {
// the previous token should not be searched
searchStartOffset = lineTokens.getStartOffset(tokenIndex);
searchEndOffset = lineTokens.getEndOffset(tokenIndex);
}
} else {
// this token should not be searched
if (prevSearchInToken && searchStartOffset !== searchEndOffset) {
const r = searchPrevMatchingBracketInRange(lineNumber, lineText, searchStartOffset, searchEndOffset);
if (r) {
return r;
}
}
}
prevSearchInToken = searchInToken;
}
if (prevSearchInToken && searchStartOffset !== searchEndOffset) {
const r = searchPrevMatchingBracketInRange(lineNumber, lineText, searchStartOffset, searchEndOffset);
if (r) {
return r;
}
}
}
return null;
}
private _findMatchingBracketDown(bracket: RichEditBracket, position: Position): Range | null {
// console.log('_findMatchingBracketDown: ', 'bracket: ', JSON.stringify(bracket), 'startPosition: ', String(position));
const languageId = bracket.languageIdentifier.id;
const bracketRegex = bracket.forwardRegex;
let count = 1;
const searchNextMatchingBracketInRange = (lineNumber: number, lineText: string, searchStartOffset: number, searchEndOffset: number): Range | null => {
while (true) {
const r = BracketsUtils.findNextBracketInRange(bracketRegex, lineNumber, lineText, searchStartOffset, searchEndOffset);
if (!r) {
break;
}
const hitText = lineText.substring(r.startColumn - 1, r.endColumn - 1).toLowerCase();
if (bracket.isOpen(hitText)) {
count++;
} else if (bracket.isClose(hitText)) {
count--;
}
if (count === 0) {
return r;
}
searchStartOffset = r.endColumn - 1;
}
return null;
};
const lineCount = this.getLineCount();
for (let lineNumber = position.lineNumber; lineNumber <= lineCount; lineNumber++) {
const lineTokens = this._getLineTokens(lineNumber);
const tokenCount = lineTokens.getCount();
const lineText = this._buffer.getLineContent(lineNumber);
let tokenIndex = 0;
let searchStartOffset = 0;
let searchEndOffset = 0;
if (lineNumber === position.lineNumber) {
tokenIndex = lineTokens.findTokenIndexAtOffset(position.column - 1);
searchStartOffset = position.column - 1;
searchEndOffset = position.column - 1;
}
let prevSearchInToken = true;
for (; tokenIndex < tokenCount; tokenIndex++) {
const searchInToken = (lineTokens.getLanguageId(tokenIndex) === languageId && !ignoreBracketsInToken(lineTokens.getStandardTokenType(tokenIndex)));
if (searchInToken) {
// this token should be searched
if (prevSearchInToken) {
// the previous token should be searched, simply extend searchEndOffset
searchEndOffset = lineTokens.getEndOffset(tokenIndex);
} else {
// the previous token should not be searched
searchStartOffset = lineTokens.getStartOffset(tokenIndex);
searchEndOffset = lineTokens.getEndOffset(tokenIndex);
}
} else {
// this token should not be searched
if (prevSearchInToken && searchStartOffset !== searchEndOffset) {
const r = searchNextMatchingBracketInRange(lineNumber, lineText, searchStartOffset, searchEndOffset);
if (r) {
return r;
}
}
}
prevSearchInToken = searchInToken;
}
if (prevSearchInToken && searchStartOffset !== searchEndOffset) {
const r = searchNextMatchingBracketInRange(lineNumber, lineText, searchStartOffset, searchEndOffset);
if (r) {
return r;
}
}
}
return null;
}
public findPrevBracket(_position: IPosition): model.IFoundBracket | null {
const position = this.validatePosition(_position);
let languageId: LanguageId = -1;
let modeBrackets: RichEditBrackets | null = null;
for (let lineNumber = position.lineNumber; lineNumber >= 1; lineNumber--) {
const lineTokens = this._getLineTokens(lineNumber);
const tokenCount = lineTokens.getCount();
const lineText = this._buffer.getLineContent(lineNumber);
let tokenIndex = tokenCount - 1;
let searchStartOffset = lineText.length;
let searchEndOffset = lineText.length;
if (lineNumber === position.lineNumber) {
tokenIndex = lineTokens.findTokenIndexAtOffset(position.column - 1);
searchStartOffset = position.column - 1;
searchEndOffset = position.column - 1;
const tokenLanguageId = lineTokens.getLanguageId(tokenIndex);
if (languageId !== tokenLanguageId) {
languageId = tokenLanguageId;
modeBrackets = LanguageConfigurationRegistry.getBracketsSupport(languageId);
}
}
let prevSearchInToken = true;
for (; tokenIndex >= 0; tokenIndex--) {
const tokenLanguageId = lineTokens.getLanguageId(tokenIndex);
if (languageId !== tokenLanguageId) {
// language id change!
if (modeBrackets && prevSearchInToken && searchStartOffset !== searchEndOffset) {
const r = BracketsUtils.findPrevBracketInRange(modeBrackets.reversedRegex, lineNumber, lineText, searchStartOffset, searchEndOffset);
if (r) {
return this._toFoundBracket(modeBrackets, r);
}
prevSearchInToken = false;
}
languageId = tokenLanguageId;
modeBrackets = LanguageConfigurationRegistry.getBracketsSupport(languageId);
}
const searchInToken = (!!modeBrackets && !ignoreBracketsInToken(lineTokens.getStandardTokenType(tokenIndex)));
if (searchInToken) {
// this token should be searched
if (prevSearchInToken) {
// the previous token should be searched, simply extend searchStartOffset
searchStartOffset = lineTokens.getStartOffset(tokenIndex);
} else {
// the previous token should not be searched
searchStartOffset = lineTokens.getStartOffset(tokenIndex);
searchEndOffset = lineTokens.getEndOffset(tokenIndex);
}
} else {
// this token should not be searched
if (modeBrackets && prevSearchInToken && searchStartOffset !== searchEndOffset) {
const r = BracketsUtils.findPrevBracketInRange(modeBrackets.reversedRegex, lineNumber, lineText, searchStartOffset, searchEndOffset);
if (r) {
return this._toFoundBracket(modeBrackets, r);
}
}
}
prevSearchInToken = searchInToken;
}
if (modeBrackets && prevSearchInToken && searchStartOffset !== searchEndOffset) {
const r = BracketsUtils.findPrevBracketInRange(modeBrackets.reversedRegex, lineNumber, lineText, searchStartOffset, searchEndOffset);
if (r) {
return this._toFoundBracket(modeBrackets, r);
}
}
}
return null;
}
public findNextBracket(_position: IPosition): model.IFoundBracket | null {
const position = this.validatePosition(_position);
const lineCount = this.getLineCount();
let languageId: LanguageId = -1;
let modeBrackets: RichEditBrackets | null = null;
for (let lineNumber = position.lineNumber; lineNumber <= lineCount; lineNumber++) {
const lineTokens = this._getLineTokens(lineNumber);
const tokenCount = lineTokens.getCount();
const lineText = this._buffer.getLineContent(lineNumber);
let tokenIndex = 0;
let searchStartOffset = 0;
let searchEndOffset = 0;
if (lineNumber === position.lineNumber) {
tokenIndex = lineTokens.findTokenIndexAtOffset(position.column - 1);
searchStartOffset = position.column - 1;
searchEndOffset = position.column - 1;
const tokenLanguageId = lineTokens.getLanguageId(tokenIndex);
if (languageId !== tokenLanguageId) {
languageId = tokenLanguageId;
modeBrackets = LanguageConfigurationRegistry.getBracketsSupport(languageId);
}
}
let prevSearchInToken = true;
for (; tokenIndex < tokenCount; tokenIndex++) {
const tokenLanguageId = lineTokens.getLanguageId(tokenIndex);
if (languageId !== tokenLanguageId) {
// language id change!
if (modeBrackets && prevSearchInToken && searchStartOffset !== searchEndOffset) {
const r = BracketsUtils.findNextBracketInRange(modeBrackets.forwardRegex, lineNumber, lineText, searchStartOffset, searchEndOffset);
if (r) {
return this._toFoundBracket(modeBrackets, r);
}
prevSearchInToken = false;
}
languageId = tokenLanguageId;
modeBrackets = LanguageConfigurationRegistry.getBracketsSupport(languageId);
}
const searchInToken = (!!modeBrackets && !ignoreBracketsInToken(lineTokens.getStandardTokenType(tokenIndex)));
if (searchInToken) {
// this token should be searched
if (prevSearchInToken) {
// the previous token should be searched, simply extend searchEndOffset
searchEndOffset = lineTokens.getEndOffset(tokenIndex);
} else {
// the previous token should not be searched
searchStartOffset = lineTokens.getStartOffset(tokenIndex);
searchEndOffset = lineTokens.getEndOffset(tokenIndex);
}
} else {
// this token should not be searched
if (modeBrackets && prevSearchInToken && searchStartOffset !== searchEndOffset) {
const r = BracketsUtils.findNextBracketInRange(modeBrackets.forwardRegex, lineNumber, lineText, searchStartOffset, searchEndOffset);
if (r) {
return this._toFoundBracket(modeBrackets, r);
}
}
}
prevSearchInToken = searchInToken;
}
if (modeBrackets && prevSearchInToken && searchStartOffset !== searchEndOffset) {
const r = BracketsUtils.findNextBracketInRange(modeBrackets.forwardRegex, lineNumber, lineText, searchStartOffset, searchEndOffset);
if (r) {
return this._toFoundBracket(modeBrackets, r);
}
}
}
return null;
}
public findEnclosingBrackets(_position: IPosition, maxDuration = Constants.MAX_SAFE_SMALL_INTEGER): [Range, Range] | null {
const position = this.validatePosition(_position);
const lineCount = this.getLineCount();
const savedCounts = new Map<number, number[]>();
let counts: number[] = [];
const resetCounts = (languageId: number, modeBrackets: RichEditBrackets | null) => {
if (!savedCounts.has(languageId)) {
let tmp = [];
for (let i = 0, len = modeBrackets ? modeBrackets.brackets.length : 0; i < len; i++) {
tmp[i] = 0;
}
savedCounts.set(languageId, tmp);
}
counts = savedCounts.get(languageId)!;
};
const searchInRange = (modeBrackets: RichEditBrackets, lineNumber: number, lineText: string, searchStartOffset: number, searchEndOffset: number): [Range, Range] | null => {
while (true) {
const r = BracketsUtils.findNextBracketInRange(modeBrackets.forwardRegex, lineNumber, lineText, searchStartOffset, searchEndOffset);
if (!r) {
break;
}
const hitText = lineText.substring(r.startColumn - 1, r.endColumn - 1).toLowerCase();
const bracket = modeBrackets.textIsBracket[hitText];
if (bracket) {
if (bracket.isOpen(hitText)) {
counts[bracket.index]++;
} else if (bracket.isClose(hitText)) {
counts[bracket.index]--;
}
if (counts[bracket.index] === -1) {
return this._matchFoundBracket(r, bracket, false);
}
}
searchStartOffset = r.endColumn - 1;
}
return null;
};
let languageId: LanguageId = -1;
let modeBrackets: RichEditBrackets | null = null;
const startTime = Date.now();
for (let lineNumber = position.lineNumber; lineNumber <= lineCount; lineNumber++) {
const elapsedTime = Date.now() - startTime;
if (elapsedTime > maxDuration) {
return null;
}
const lineTokens = this._getLineTokens(lineNumber);
const tokenCount = lineTokens.getCount();
const lineText = this._buffer.getLineContent(lineNumber);
let tokenIndex = 0;
let searchStartOffset = 0;
let searchEndOffset = 0;
if (lineNumber === position.lineNumber) {
tokenIndex = lineTokens.findTokenIndexAtOffset(position.column - 1);
searchStartOffset = position.column - 1;
searchEndOffset = position.column - 1;
const tokenLanguageId = lineTokens.getLanguageId(tokenIndex);
if (languageId !== tokenLanguageId) {
languageId = tokenLanguageId;
modeBrackets = LanguageConfigurationRegistry.getBracketsSupport(languageId);
resetCounts(languageId, modeBrackets);
}
}
let prevSearchInToken = true;
for (; tokenIndex < tokenCount; tokenIndex++) {
const tokenLanguageId = lineTokens.getLanguageId(tokenIndex);
if (languageId !== tokenLanguageId) {
// language id change!
if (modeBrackets && prevSearchInToken && searchStartOffset !== searchEndOffset) {
const r = searchInRange(modeBrackets, lineNumber, lineText, searchStartOffset, searchEndOffset);
if (r) {
return r;
}
prevSearchInToken = false;
}
languageId = tokenLanguageId;
modeBrackets = LanguageConfigurationRegistry.getBracketsSupport(languageId);
resetCounts(languageId, modeBrackets);
}
const searchInToken = (!!modeBrackets && !ignoreBracketsInToken(lineTokens.getStandardTokenType(tokenIndex)));
if (searchInToken) {
// this token should be searched
if (prevSearchInToken) {
// the previous token should be searched, simply extend searchEndOffset
searchEndOffset = lineTokens.getEndOffset(tokenIndex);
} else {
// the previous token should not be searched
searchStartOffset = lineTokens.getStartOffset(tokenIndex);
searchEndOffset = lineTokens.getEndOffset(tokenIndex);
}
} else {
// this token should not be searched
if (modeBrackets && prevSearchInToken && searchStartOffset !== searchEndOffset) {
const r = searchInRange(modeBrackets, lineNumber, lineText, searchStartOffset, searchEndOffset);
if (r) {
return r;
}
}
}
prevSearchInToken = searchInToken;
}
if (modeBrackets && prevSearchInToken && searchStartOffset !== searchEndOffset) {
const r = searchInRange(modeBrackets, lineNumber, lineText, searchStartOffset, searchEndOffset);
if (r) {
return r;
}
}
}
return null;
}
private _toFoundBracket(modeBrackets: RichEditBrackets, r: Range): model.IFoundBracket | null {
if (!r) {
return null;
}
let text = this.getValueInRange(r);
text = text.toLowerCase();
let data = modeBrackets.textIsBracket[text];
if (!data) {
return null;
}
return {
range: r,
open: data.open,
close: data.close,
isOpen: modeBrackets.textIsOpenBracket[text]
};
}
/**
* Returns:
* - -1 => the line consists of whitespace
* - otherwise => the indent level is returned value
*/
public static computeIndentLevel(line: string, tabSize: number): number {
let indent = 0;
let i = 0;
let len = line.length;
while (i < len) {
let chCode = line.charCodeAt(i);
if (chCode === CharCode.Space) {
indent++;
} else if (chCode === CharCode.Tab) {
indent = indent - indent % tabSize + tabSize;
} else {
break;
}
i++;
}
if (i === len) {
return -1; // line only consists of whitespace
}
return indent;
}
private _computeIndentLevel(lineIndex: number): number {
return TextModel.computeIndentLevel(this._buffer.getLineContent(lineIndex + 1), this._options.tabSize);
}
public getActiveIndentGuide(lineNumber: number, minLineNumber: number, maxLineNumber: number): model.IActiveIndentGuideInfo {
this._assertNotDisposed();
const lineCount = this.getLineCount();
if (lineNumber < 1 || lineNumber > lineCount) {
throw new Error('Illegal value for lineNumber');
}
const foldingRules = LanguageConfigurationRegistry.getFoldingRules(this._languageIdentifier.id);
const offSide = Boolean(foldingRules && foldingRules.offSide);
let up_aboveContentLineIndex = -2; /* -2 is a marker for not having computed it */
let up_aboveContentLineIndent = -1;
let up_belowContentLineIndex = -2; /* -2 is a marker for not having computed it */
let up_belowContentLineIndent = -1;
const up_resolveIndents = (lineNumber: number) => {
if (up_aboveContentLineIndex !== -1 && (up_aboveContentLineIndex === -2 || up_aboveContentLineIndex > lineNumber - 1)) {
up_aboveContentLineIndex = -1;
up_aboveContentLineIndent = -1;
// must find previous line with content
for (let lineIndex = lineNumber - 2; lineIndex >= 0; lineIndex--) {
let indent = this._computeIndentLevel(lineIndex);
if (indent >= 0) {
up_aboveContentLineIndex = lineIndex;
up_aboveContentLineIndent = indent;
break;
}
}
}
if (up_belowContentLineIndex === -2) {
up_belowContentLineIndex = -1;
up_belowContentLineIndent = -1;
// must find next line with content
for (let lineIndex = lineNumber; lineIndex < lineCount; lineIndex++) {
let indent = this._computeIndentLevel(lineIndex);
if (indent >= 0) {
up_belowContentLineIndex = lineIndex;
up_belowContentLineIndent = indent;
break;
}
}
}
};
let down_aboveContentLineIndex = -2; /* -2 is a marker for not having computed it */
let down_aboveContentLineIndent = -1;
let down_belowContentLineIndex = -2; /* -2 is a marker for not having computed it */
let down_belowContentLineIndent = -1;
const down_resolveIndents = (lineNumber: number) => {
if (down_aboveContentLineIndex === -2) {
down_aboveContentLineIndex = -1;
down_aboveContentLineIndent = -1;
// must find previous line with content
for (let lineIndex = lineNumber - 2; lineIndex >= 0; lineIndex--) {
let indent = this._computeIndentLevel(lineIndex);
if (indent >= 0) {
down_aboveContentLineIndex = lineIndex;
down_aboveContentLineIndent = indent;
break;
}
}
}
if (down_belowContentLineIndex !== -1 && (down_belowContentLineIndex === -2 || down_belowContentLineIndex < lineNumber - 1)) {
down_belowContentLineIndex = -1;
down_belowContentLineIndent = -1;
// must find next line with content
for (let lineIndex = lineNumber; lineIndex < lineCount; lineIndex++) {
let indent = this._computeIndentLevel(lineIndex);
if (indent >= 0) {
down_belowContentLineIndex = lineIndex;
down_belowContentLineIndent = indent;
break;
}
}
}
};
let startLineNumber = 0;
let goUp = true;
let endLineNumber = 0;
let goDown = true;
let indent = 0;
let initialIndent = 0;
for (let distance = 0; goUp || goDown; distance++) {
const upLineNumber = lineNumber - distance;
const downLineNumber = lineNumber + distance;
if (distance > 1 && (upLineNumber < 1 || upLineNumber < minLineNumber)) {
goUp = false;
}
if (distance > 1 && (downLineNumber > lineCount || downLineNumber > maxLineNumber)) {
goDown = false;
}
if (distance > 50000) {
// stop processing
goUp = false;
goDown = false;
}
let upLineIndentLevel: number = -1;
if (goUp) {
// compute indent level going up
const currentIndent = this._computeIndentLevel(upLineNumber - 1);
if (currentIndent >= 0) {
// This line has content (besides whitespace)
// Use the line's indent
up_belowContentLineIndex = upLineNumber - 1;
up_belowContentLineIndent = currentIndent;
upLineIndentLevel = Math.ceil(currentIndent / this._options.indentSize);
} else {
up_resolveIndents(upLineNumber);
upLineIndentLevel = this._getIndentLevelForWhitespaceLine(offSide, up_aboveContentLineIndent, up_belowContentLineIndent);
}
}
let downLineIndentLevel = -1;
if (goDown) {
// compute indent level going down
const currentIndent = this._computeIndentLevel(downLineNumber - 1);
if (currentIndent >= 0) {
// This line has content (besides whitespace)
// Use the line's indent
down_aboveContentLineIndex = downLineNumber - 1;
down_aboveContentLineIndent = currentIndent;
downLineIndentLevel = Math.ceil(currentIndent / this._options.indentSize);
} else {
down_resolveIndents(downLineNumber);
downLineIndentLevel = this._getIndentLevelForWhitespaceLine(offSide, down_aboveContentLineIndent, down_belowContentLineIndent);
}
}
if (distance === 0) {
initialIndent = upLineIndentLevel;
continue;
}
if (distance === 1) {
if (downLineNumber <= lineCount && downLineIndentLevel >= 0 && initialIndent + 1 === downLineIndentLevel) {
// This is the beginning of a scope, we have special handling here, since we want the
// child scope indent to be active, not the parent scope
goUp = false;
startLineNumber = downLineNumber;
endLineNumber = downLineNumber;
indent = downLineIndentLevel;
continue;
}
if (upLineNumber >= 1 && upLineIndentLevel >= 0 && upLineIndentLevel - 1 === initialIndent) {
// This is the end of a scope, just like above
goDown = false;
startLineNumber = upLineNumber;
endLineNumber = upLineNumber;
indent = upLineIndentLevel;
continue;
}
startLineNumber = lineNumber;
endLineNumber = lineNumber;
indent = initialIndent;
if (indent === 0) {
// No need to continue
return { startLineNumber, endLineNumber, indent };
}
}
if (goUp) {
if (upLineIndentLevel >= indent) {
startLineNumber = upLineNumber;
} else {
goUp = false;
}
}
if (goDown) {
if (downLineIndentLevel >= indent) {
endLineNumber = downLineNumber;
} else {
goDown = false;
}
}
}
return { startLineNumber, endLineNumber, indent };
}
public getLinesIndentGuides(startLineNumber: number, endLineNumber: number): number[] {
this._assertNotDisposed();
const lineCount = this.getLineCount();
if (startLineNumber < 1 || startLineNumber > lineCount) {
throw new Error('Illegal value for startLineNumber');
}
if (endLineNumber < 1 || endLineNumber > lineCount) {
throw new Error('Illegal value for endLineNumber');
}
const foldingRules = LanguageConfigurationRegistry.getFoldingRules(this._languageIdentifier.id);
const offSide = Boolean(foldingRules && foldingRules.offSide);
let result: number[] = new Array<number>(endLineNumber - startLineNumber + 1);
let aboveContentLineIndex = -2; /* -2 is a marker for not having computed it */
let aboveContentLineIndent = -1;
let belowContentLineIndex = -2; /* -2 is a marker for not having computed it */
let belowContentLineIndent = -1;
for (let lineNumber = startLineNumber; lineNumber <= endLineNumber; lineNumber++) {
let resultIndex = lineNumber - startLineNumber;
const currentIndent = this._computeIndentLevel(lineNumber - 1);
if (currentIndent >= 0) {
// This line has content (besides whitespace)
// Use the line's indent
aboveContentLineIndex = lineNumber - 1;
aboveContentLineIndent = currentIndent;
result[resultIndex] = Math.ceil(currentIndent / this._options.indentSize);
continue;
}
if (aboveContentLineIndex === -2) {
aboveContentLineIndex = -1;
aboveContentLineIndent = -1;
// must find previous line with content
for (let lineIndex = lineNumber - 2; lineIndex >= 0; lineIndex--) {
let indent = this._computeIndentLevel(lineIndex);
if (indent >= 0) {
aboveContentLineIndex = lineIndex;
aboveContentLineIndent = indent;
break;
}
}
}
if (belowContentLineIndex !== -1 && (belowContentLineIndex === -2 || belowContentLineIndex < lineNumber - 1)) {
belowContentLineIndex = -1;
belowContentLineIndent = -1;
// must find next line with content
for (let lineIndex = lineNumber; lineIndex < lineCount; lineIndex++) {
let indent = this._computeIndentLevel(lineIndex);
if (indent >= 0) {
belowContentLineIndex = lineIndex;
belowContentLineIndent = indent;
break;
}
}
}
result[resultIndex] = this._getIndentLevelForWhitespaceLine(offSide, aboveContentLineIndent, belowContentLineIndent);
}
return result;
}
private _getIndentLevelForWhitespaceLine(offSide: boolean, aboveContentLineIndent: number, belowContentLineIndent: number): number {
if (aboveContentLineIndent === -1 || belowContentLineIndent === -1) {
// At the top or bottom of the file
return 0;
} else if (aboveContentLineIndent < belowContentLineIndent) {
// we are inside the region above
return (1 + Math.floor(aboveContentLineIndent / this._options.indentSize));
} else if (aboveContentLineIndent === belowContentLineIndent) {
// we are in between two regions
return Math.ceil(belowContentLineIndent / this._options.indentSize);
} else {
if (offSide) {
// same level as region below
return Math.ceil(belowContentLineIndent / this._options.indentSize);
} else {
// we are inside the region that ends below
return (1 + Math.floor(belowContentLineIndent / this._options.indentSize));
}
}
}
//#endregion
}
//#region Decorations
class DecorationsTrees {
/**
* This tree holds decorations that do not show up in the overview ruler.
*/
private readonly _decorationsTree0: IntervalTree;
/**
* This tree holds decorations that show up in the overview ruler.
*/
private readonly _decorationsTree1: IntervalTree;
constructor() {
this._decorationsTree0 = new IntervalTree();
this._decorationsTree1 = new IntervalTree();
}
public intervalSearch(start: number, end: number, filterOwnerId: number, filterOutValidation: boolean, cachedVersionId: number): IntervalNode[] {
const r0 = this._decorationsTree0.intervalSearch(start, end, filterOwnerId, filterOutValidation, cachedVersionId);
const r1 = this._decorationsTree1.intervalSearch(start, end, filterOwnerId, filterOutValidation, cachedVersionId);
return r0.concat(r1);
}
public search(filterOwnerId: number, filterOutValidation: boolean, overviewRulerOnly: boolean, cachedVersionId: number): IntervalNode[] {
if (overviewRulerOnly) {
return this._decorationsTree1.search(filterOwnerId, filterOutValidation, cachedVersionId);
} else {
const r0 = this._decorationsTree0.search(filterOwnerId, filterOutValidation, cachedVersionId);
const r1 = this._decorationsTree1.search(filterOwnerId, filterOutValidation, cachedVersionId);
return r0.concat(r1);
}
}
public collectNodesFromOwner(ownerId: number): IntervalNode[] {
const r0 = this._decorationsTree0.collectNodesFromOwner(ownerId);
const r1 = this._decorationsTree1.collectNodesFromOwner(ownerId);
return r0.concat(r1);
}
public collectNodesPostOrder(): IntervalNode[] {
const r0 = this._decorationsTree0.collectNodesPostOrder();
const r1 = this._decorationsTree1.collectNodesPostOrder();
return r0.concat(r1);
}
public insert(node: IntervalNode): void {
if (getNodeIsInOverviewRuler(node)) {
this._decorationsTree1.insert(node);
} else {
this._decorationsTree0.insert(node);
}
}
public delete(node: IntervalNode): void {
if (getNodeIsInOverviewRuler(node)) {
this._decorationsTree1.delete(node);
} else {
this._decorationsTree0.delete(node);
}
}
public resolveNode(node: IntervalNode, cachedVersionId: number): void {
if (getNodeIsInOverviewRuler(node)) {
this._decorationsTree1.resolveNode(node, cachedVersionId);
} else {
this._decorationsTree0.resolveNode(node, cachedVersionId);
}
}
public acceptReplace(offset: number, length: number, textLength: number, forceMoveMarkers: boolean): void {
this._decorationsTree0.acceptReplace(offset, length, textLength, forceMoveMarkers);
this._decorationsTree1.acceptReplace(offset, length, textLength, forceMoveMarkers);
}
}
function cleanClassName(className: string): string {
return className.replace(/[^a-z0-9\-_]/gi, ' ');
}
class DecorationOptions implements model.IDecorationOptions {
readonly color: string | ThemeColor;
readonly darkColor: string | ThemeColor;
constructor(options: model.IDecorationOptions) {
this.color = options.color || '';
this.darkColor = options.darkColor || '';
}
}
export class ModelDecorationOverviewRulerOptions extends DecorationOptions {
readonly position: model.OverviewRulerLane;
private _resolvedColor: string | null;
constructor(options: model.IModelDecorationOverviewRulerOptions) {
super(options);
this._resolvedColor = null;
this.position = (typeof options.position === 'number' ? options.position : model.OverviewRulerLane.Center);
}
public getColor(theme: EditorTheme): string {
if (!this._resolvedColor) {
if (theme.type !== 'light' && this.darkColor) {
this._resolvedColor = this._resolveColor(this.darkColor, theme);
} else {
this._resolvedColor = this._resolveColor(this.color, theme);
}
}
return this._resolvedColor;
}
public invalidateCachedColor(): void {
this._resolvedColor = null;
}
private _resolveColor(color: string | ThemeColor, theme: EditorTheme): string {
if (typeof color === 'string') {
return color;
}
let c = color ? theme.getColor(color.id) : null;
if (!c) {
return '';
}
return c.toString();
}
}
export class ModelDecorationMinimapOptions extends DecorationOptions {
readonly position: model.MinimapPosition;
private _resolvedColor: Color | undefined;
constructor(options: model.IModelDecorationMinimapOptions) {
super(options);
this.position = options.position;
}
public getColor(theme: EditorTheme): Color | undefined {
if (!this._resolvedColor) {
if (theme.type !== 'light' && this.darkColor) {
this._resolvedColor = this._resolveColor(this.darkColor, theme);
} else {
this._resolvedColor = this._resolveColor(this.color, theme);
}
}
return this._resolvedColor;
}
public invalidateCachedColor(): void {
this._resolvedColor = undefined;
}
private _resolveColor(color: string | ThemeColor, theme: EditorTheme): Color | undefined {
if (typeof color === 'string') {
return Color.fromHex(color);
}
return theme.getColor(color.id);
}
}
export class ModelDecorationOptions implements model.IModelDecorationOptions {
public static EMPTY: ModelDecorationOptions;
public static register(options: model.IModelDecorationOptions): ModelDecorationOptions {
return new ModelDecorationOptions(options);
}
public static createDynamic(options: model.IModelDecorationOptions): ModelDecorationOptions {
return new ModelDecorationOptions(options);
}
readonly stickiness: model.TrackedRangeStickiness;
readonly zIndex: number;
readonly className: string | null;
readonly hoverMessage: IMarkdownString | IMarkdownString[] | null;
readonly glyphMarginHoverMessage: IMarkdownString | IMarkdownString[] | null;
readonly isWholeLine: boolean;
readonly showIfCollapsed: boolean;
readonly collapseOnReplaceEdit: boolean;
readonly overviewRuler: ModelDecorationOverviewRulerOptions | null;
readonly minimap: ModelDecorationMinimapOptions | null;
readonly glyphMarginClassName: string | null;
readonly linesDecorationsClassName: string | null;
readonly marginClassName: string | null;
readonly inlineClassName: string | null;
readonly inlineClassNameAffectsLetterSpacing: boolean;
readonly beforeContentClassName: string | null;
readonly afterContentClassName: string | null;
private constructor(options: model.IModelDecorationOptions) {
this.stickiness = options.stickiness || model.TrackedRangeStickiness.AlwaysGrowsWhenTypingAtEdges;
this.zIndex = options.zIndex || 0;
this.className = options.className ? cleanClassName(options.className) : null;
this.hoverMessage = withUndefinedAsNull(options.hoverMessage);
this.glyphMarginHoverMessage = withUndefinedAsNull(options.glyphMarginHoverMessage);
this.isWholeLine = options.isWholeLine || false;
this.showIfCollapsed = options.showIfCollapsed || false;
this.collapseOnReplaceEdit = options.collapseOnReplaceEdit || false;
this.overviewRuler = options.overviewRuler ? new ModelDecorationOverviewRulerOptions(options.overviewRuler) : null;
this.minimap = options.minimap ? new ModelDecorationMinimapOptions(options.minimap) : null;
this.glyphMarginClassName = options.glyphMarginClassName ? cleanClassName(options.glyphMarginClassName) : null;
this.linesDecorationsClassName = options.linesDecorationsClassName ? cleanClassName(options.linesDecorationsClassName) : null;
this.marginClassName = options.marginClassName ? cleanClassName(options.marginClassName) : null;
this.inlineClassName = options.inlineClassName ? cleanClassName(options.inlineClassName) : null;
this.inlineClassNameAffectsLetterSpacing = options.inlineClassNameAffectsLetterSpacing || false;
this.beforeContentClassName = options.beforeContentClassName ? cleanClassName(options.beforeContentClassName) : null;
this.afterContentClassName = options.afterContentClassName ? cleanClassName(options.afterContentClassName) : null;
}
}
ModelDecorationOptions.EMPTY = ModelDecorationOptions.register({});
/**
* The order carefully matches the values of the enum.
*/
const TRACKED_RANGE_OPTIONS = [
ModelDecorationOptions.register({ stickiness: model.TrackedRangeStickiness.AlwaysGrowsWhenTypingAtEdges }),
ModelDecorationOptions.register({ stickiness: model.TrackedRangeStickiness.NeverGrowsWhenTypingAtEdges }),
ModelDecorationOptions.register({ stickiness: model.TrackedRangeStickiness.GrowsOnlyWhenTypingBefore }),
ModelDecorationOptions.register({ stickiness: model.TrackedRangeStickiness.GrowsOnlyWhenTypingAfter }),
];
function _normalizeOptions(options: model.IModelDecorationOptions): ModelDecorationOptions {
if (options instanceof ModelDecorationOptions) {
return options;
}
return ModelDecorationOptions.createDynamic(options);
}
export class DidChangeDecorationsEmitter extends Disposable {
private readonly _actual: Emitter<IModelDecorationsChangedEvent> = this._register(new Emitter<IModelDecorationsChangedEvent>());
public readonly event: Event<IModelDecorationsChangedEvent> = this._actual.event;
private _deferredCnt: number;
private _shouldFire: boolean;
private _affectsMinimap: boolean;
private _affectsOverviewRuler: boolean;
constructor() {
super();
this._deferredCnt = 0;
this._shouldFire = false;
this._affectsMinimap = false;
this._affectsOverviewRuler = false;
}
public beginDeferredEmit(): void {
this._deferredCnt++;
}
public endDeferredEmit(): void {
this._deferredCnt--;
if (this._deferredCnt === 0) {
if (this._shouldFire) {
const event: IModelDecorationsChangedEvent = {
affectsMinimap: this._affectsMinimap,
affectsOverviewRuler: this._affectsOverviewRuler,
};
this._shouldFire = false;
this._affectsMinimap = false;
this._affectsOverviewRuler = false;
this._actual.fire(event);
}
}
}
public checkAffectedAndFire(options: ModelDecorationOptions): void {
if (!this._affectsMinimap) {
this._affectsMinimap = options.minimap && options.minimap.position ? true : false;
}
if (!this._affectsOverviewRuler) {
this._affectsOverviewRuler = options.overviewRuler && options.overviewRuler.color ? true : false;
}
this._shouldFire = true;
}
public fire(): void {
this._affectsMinimap = true;
this._affectsOverviewRuler = true;
this._shouldFire = true;
}
}
//#endregion
export class DidChangeContentEmitter extends Disposable {
/**
* Both `fastEvent` and `slowEvent` work the same way and contain the same events, but first we invoke `fastEvent` and then `slowEvent`.
*/
private readonly _fastEmitter: Emitter<InternalModelContentChangeEvent> = this._register(new Emitter<InternalModelContentChangeEvent>());
public readonly fastEvent: Event<InternalModelContentChangeEvent> = this._fastEmitter.event;
private readonly _slowEmitter: Emitter<InternalModelContentChangeEvent> = this._register(new Emitter<InternalModelContentChangeEvent>());
public readonly slowEvent: Event<InternalModelContentChangeEvent> = this._slowEmitter.event;
private _deferredCnt: number;
private _deferredEvent: InternalModelContentChangeEvent | null;
constructor() {
super();
this._deferredCnt = 0;
this._deferredEvent = null;
}
public beginDeferredEmit(): void {
this._deferredCnt++;
}
public endDeferredEmit(resultingSelection: Selection[] | null = null): void {
this._deferredCnt--;
if (this._deferredCnt === 0) {
if (this._deferredEvent !== null) {
this._deferredEvent.rawContentChangedEvent.resultingSelection = resultingSelection;
const e = this._deferredEvent;
this._deferredEvent = null;
this._fastEmitter.fire(e);
this._slowEmitter.fire(e);
}
}
}
public fire(e: InternalModelContentChangeEvent): void {
if (this._deferredCnt > 0) {
if (this._deferredEvent) {
this._deferredEvent = this._deferredEvent.merge(e);
} else {
this._deferredEvent = e;
}
return;
}
this._fastEmitter.fire(e);
this._slowEmitter.fire(e);
}
}