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Delta encode single semantic coloring areas

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This commit is contained in:
Alex Dima
2019-11-08 12:07:06 +01:00
parent 3cef67fae0
commit 5eaf74f52d
2 changed files with 160 additions and 118 deletions
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16
src/vs/workbench/api/common/shared/semanticTokens.ts
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@@ -6,20 +6,22 @@
import { VSBuffer } from 'vs/base/common/buffer';
export interface ISemanticTokensFullAreaDto {
line: number;
type: 'full';
line: number;
data: Uint32Array;
}
export interface ISemanticTokensDeltaAreaDto {
line: number;
type: 'delta';
line: number;
oldIndex: number;
}
export type ISemanticTokensAreaDto = ISemanticTokensFullAreaDto | ISemanticTokensDeltaAreaDto;
export interface ISemanticTokensDto {
id: number;
areas: (ISemanticTokensFullAreaDto | ISemanticTokensDeltaAreaDto)[];
areas: ISemanticTokensAreaDto[];
}
const enum EncodedSemanticTokensAreaType {
@@ -52,7 +54,7 @@ export function decodeSemanticTokensDto(buff: VSBuffer): ISemanticTokensDto {
let offset = 0;
const id = buff.readUInt32BE(offset); offset += 4;
const areasCount = buff.readUInt32BE(offset); offset += 4;
let areas: (ISemanticTokensFullAreaDto | ISemanticTokensDeltaAreaDto)[] = [];
let areas: ISemanticTokensAreaDto[] = [];
for (let i = 0; i < areasCount; i++) {
offset = decodeArea(buff, offset, areas);
}
@@ -62,7 +64,7 @@ export function decodeSemanticTokensDto(buff: VSBuffer): ISemanticTokensDto {
};
}
function encodeArea(area: ISemanticTokensFullAreaDto | ISemanticTokensDeltaAreaDto, buff: VSBuffer, offset: number): number {
function encodeArea(area: ISemanticTokensAreaDto, buff: VSBuffer, offset: number): number {
buff.writeUInt8(area.type === 'full' ? EncodedSemanticTokensAreaType.Full : EncodedSemanticTokensAreaType.Delta, offset); offset += 1;
buff.writeUInt32BE(area.line + 1, offset); offset += 4;
if (area.type === 'full') {
@@ -85,7 +87,7 @@ function encodeArea(area: ISemanticTokensFullAreaDto | ISemanticTokensDeltaAreaD
return offset;
}
function encodedAreaSize(area: ISemanticTokensFullAreaDto | ISemanticTokensDeltaAreaDto): number {
function encodedAreaSize(area: ISemanticTokensAreaDto): number {
let result = 0;
result += 1; // type
result += 4; // line
@@ -101,7 +103,7 @@ function encodedAreaSize(area: ISemanticTokensFullAreaDto | ISemanticTokensDelta
}
}
function decodeArea(buff: VSBuffer, offset: number, areas: (ISemanticTokensFullAreaDto | ISemanticTokensDeltaAreaDto)[]): number {
function decodeArea(buff: VSBuffer, offset: number, areas: ISemanticTokensAreaDto[]): number {
const type: EncodedSemanticTokensAreaType = buff.readUInt8(offset); offset += 1;
const line = buff.readUInt32BE(offset); offset += 4;
if (type === EncodedSemanticTokensAreaType.Full) {