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import { unreachable } from '../../util/util.js';
let windowURL: URL | undefined = undefined;
function getWindowURL() {
if (windowURL === undefined) {
windowURL = new URL(window.location.toString());
}
return windowURL;
}
/** Parse a runner option that is always boolean-typed. False if missing or '0'. */
export function optionEnabled(
opt: string,
searchParams: URLSearchParams = getWindowURL().searchParams
): boolean {
const val = searchParams.get(opt);
return val !== null && val !== '0';
}
/** Parse a runner option that is string-typed. If the option is missing, returns `null`. */
export function optionString(
opt: string,
searchParams: URLSearchParams = getWindowURL().searchParams
): string | null {
return searchParams.get(opt);
}
/** Runtime modes for running tests in different types of workers. */
export type WorkerMode = 'dedicated' | 'service' | 'shared';
/** Parse a runner option for different worker modes (as in `?worker=shared`). Null if no worker. */
export function optionWorkerMode(
opt: string,
searchParams: URLSearchParams = getWindowURL().searchParams
): WorkerMode | null {
const value = searchParams.get(opt);
if (value === null || value === '0') {
return null;
} else if (value === 'service') {
return 'service';
} else if (value === 'shared') {
return 'shared';
} else if (value === '' || value === '1' || value === 'dedicated') {
return 'dedicated';
}
unreachable('invalid worker= option value');
}
/**
* The possible options for the tests.
*/
export interface CTSOptions {
worker: WorkerMode | null;
debug: boolean;
compatibility: boolean;
forceFallbackAdapter: boolean;
unrollConstEvalLoops: boolean;
powerPreference: GPUPowerPreference | null;
logToWebSocket: boolean;
}
export const kDefaultCTSOptions: CTSOptions = {
worker: null,
debug: true,
compatibility: false,
forceFallbackAdapter: false,
unrollConstEvalLoops: false,
powerPreference: null,
logToWebSocket: false,
};
/**
* Extra per option info.
*/
export interface OptionInfo {
description: string;
parser?: (key: string, searchParams?: URLSearchParams) => boolean | string | null;
selectValueDescriptions?: { value: string | null; description: string }[];
}
/**
* Type for info for every option. This definition means adding an option
* will generate a compile time error if no extra info is provided.
*/
export type OptionsInfos<Type> = Record<keyof Type, OptionInfo>;
/**
* Options to the CTS.
*/
export const kCTSOptionsInfo: OptionsInfos<CTSOptions> = {
worker: {
description: 'run in a worker',
parser: optionWorkerMode,
selectValueDescriptions: [
{ value: null, description: 'no worker' },
{ value: 'dedicated', description: 'dedicated worker' },
{ value: 'shared', description: 'shared worker' },
{ value: 'service', description: 'service worker' },
],
},
debug: { description: 'show more info' },
compatibility: { description: 'run in compatibility mode' },
forceFallbackAdapter: { description: 'pass forceFallbackAdapter: true to requestAdapter' },
unrollConstEvalLoops: { description: 'unroll const eval loops in WGSL' },
powerPreference: {
description: 'set default powerPreference for some tests',
parser: optionString,
selectValueDescriptions: [
{ value: null, description: 'default' },
{ value: 'low-power', description: 'low-power' },
{ value: 'high-performance', description: 'high-performance' },
],
},
logToWebSocket: { description: 'send some logs to ws://localhost:59497/' },
};
/**
* Converts camel case to snake case.
* Examples:
* fooBar -> foo_bar
* parseHTMLFile -> parse_html_file
*/
export function camelCaseToSnakeCase(id: string) {
return id
.replace(/(.)([A-Z][a-z]+)/g, '$1_$2')
.replace(/([a-z0-9])([A-Z])/g, '$1_$2')
.toLowerCase();
}
/**
* Creates a Options from search parameters.
*/
function getOptionsInfoFromSearchString<Type extends CTSOptions>(
optionsInfos: OptionsInfos<Type>,
searchString: string
): Type {
const searchParams = new URLSearchParams(searchString);
const optionValues: Record<string, boolean | string | null> = {};
for (const [optionName, info] of Object.entries(optionsInfos)) {
const parser = info.parser || optionEnabled;
optionValues[optionName] = parser(camelCaseToSnakeCase(optionName), searchParams);
}
return optionValues as unknown as Type;
}
/**
* Given a test query string in the form of `suite:foo,bar,moo&opt1=val1&opt2=val2
* returns the query and the options.
*/
export function parseSearchParamLikeWithOptions<Type extends CTSOptions>(
optionsInfos: OptionsInfos<Type>,
query: string
): {
queries: string[];
options: Type;
} {
const searchString = query.includes('q=') || query.startsWith('?') ? query : `q=${query}`;
const queries = new URLSearchParams(searchString).getAll('q');
const options = getOptionsInfoFromSearchString(optionsInfos, searchString);
return { queries, options };
}
/**
* Given a test query string in the form of `suite:foo,bar,moo&opt1=val1&opt2=val2
* returns the query and the common options.
*/
export function parseSearchParamLikeWithCTSOptions(query: string) {
return parseSearchParamLikeWithOptions(kCTSOptionsInfo, query);
}
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