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_run return T or void depending on boolean

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This commit is contained in:
RMidhunSuresh 2021-11-17 13:22:19 +05:30
parent 07a1130db3
commit d01271fb15
3 changed files with 22 additions and 18 deletions
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26
src/logging/BaseLogger.ts
View file

@ -20,8 +20,6 @@ import {LogLevel, LogFilter} from "./LogFilter";
import type {FilterCreator, LabelOrValues, LogCallback, ILogItem} from "./LogItem";
import type {Platform} from "../platform/web/Platform.js";
type RunResult<T> = T | void | Promise<T | void>;
export abstract class BaseLogger {
protected _openItems: Set<ILogItem> = new Set();
protected _platform: Platform;
@ -37,7 +35,7 @@ export abstract class BaseLogger {
}
/** if item is a log item, wrap the callback in a child of it, otherwise start a new root log item. */
wrapOrRun<T>(item: ILogItem, labelOrValues: LabelOrValues, callback: LogCallback<T>, logLevel?: LogLevel, filterCreator?: FilterCreator): RunResult<T> {
wrapOrRun<T>(item: ILogItem, labelOrValues: LabelOrValues, callback: LogCallback<T>, logLevel?: LogLevel, filterCreator?: FilterCreator): T {
if (item) {
return item.wrap(labelOrValues, callback, logLevel, filterCreator);
} else {
@ -62,7 +60,7 @@ export abstract class BaseLogger {
/** run a callback wrapped in a log operation.
Errors and duration are transparently logged, also for async operations.
Whatever the callback returns is returned here. */
run<T>(labelOrValues: LabelOrValues, callback: LogCallback<T>, logLevel?: LogLevel, filterCreator?: FilterCreator): RunResult<T> {
run<T>(labelOrValues: LabelOrValues, callback: LogCallback<T>, logLevel?: LogLevel, filterCreator?: FilterCreator): T {
if (!logLevel) {
logLevel = LogLevel.Info;
}
@ -70,7 +68,9 @@ export abstract class BaseLogger {
return this._run(item, callback, logLevel!, true, filterCreator);
}
_run<T>(item: ILogItem, callback: LogCallback<T>, logLevel: LogLevel, shouldThrow: boolean, filterCreator?: FilterCreator): RunResult<T> {
_run<T>(item: ILogItem, callback: LogCallback<T>, logLevel: LogLevel, wantResult: true, filterCreator?: FilterCreator): T;
_run<T>(item: ILogItem, callback: LogCallback<T>, logLevel: LogLevel, wantResult: false, filterCreator?: FilterCreator): void;
_run<T>(item: ILogItem, callback: LogCallback<T>, logLevel: LogLevel, wantResult: boolean, filterCreator?: FilterCreator): T | void {
this._openItems.add(item);
const finishItem = () => {
@ -94,24 +94,28 @@ export abstract class BaseLogger {
};
try {
const result = item.run(callback);
let result = item.run(callback);
if (result instanceof Promise) {
return result.then(promiseResult => {
result = result.then(promiseResult => {
finishItem();
return promiseResult;
}, err => {
finishItem();
if (shouldThrow) {
if (wantResult) {
throw err;
}
});
} else {
}) as unknown as T;
if (wantResult) {
return result;
}
}
if(wantResult) {
finishItem();
return result;
}
} catch (err) {
finishItem();
if (shouldThrow) {
if (wantResult) {
throw err;
}
}

10
src/logging/LogItem.ts
View file

@ -42,10 +42,10 @@ export interface ILogItem {
children?: Array<ILogItem>;
values: LogItemValues;
error?: Error;
wrap<T>(labelOrValues: LabelOrValues, callback: LogCallback<T>, logLevel?: LogLevel, filterCreator?: FilterCreator): T | Promise<T>;
wrap<T>(labelOrValues: LabelOrValues, callback: LogCallback<T>, logLevel?: LogLevel, filterCreator?: FilterCreator): T;
log(labelOrValues: LabelOrValues, logLevel?: LogLevel): void;
set(key: string | object, value: unknown): void;
run<T>(callback: LogCallback<T>): T | Promise<T>;
run<T>(callback: LogCallback<T>): T;
runDetached(labelOrValues: LabelOrValues, callback: LogCallback<unknown>, logLevel?: LogLevel, filterCreator?: FilterCreator): ILogItem;
wrapDetached(labelOrValues: LabelOrValues, callback: LogCallback<unknown>, logLevel?: LogLevel, filterCreator?: FilterCreator): void;
refDetached(logItem: ILogItem, logLevel?: LogLevel): void;
@ -115,7 +115,7 @@ export class LogItem implements ILogItem {
/**
* Creates a new child item and runs it in `callback`.
*/
wrap<T>(labelOrValues: LabelOrValues, callback: LogCallback<T>, logLevel?: LogLevel, filterCreator?: FilterCreator): T | Promise<T> {
wrap<T>(labelOrValues: LabelOrValues, callback: LogCallback<T>, logLevel?: LogLevel, filterCreator?: FilterCreator): T {
const item = this.child(labelOrValues, logLevel, filterCreator);
return item.run(callback);
}
@ -235,7 +235,7 @@ export class LogItem implements ILogItem {
* @param {Function} callback [description]
* @return {[type]} [description]
*/
run<T>(callback: LogCallback<T>): T | Promise<T> {
run<T>(callback: LogCallback<T>): T {
if (this.end) {
console.trace("log item is finished, additional logs will likely not be recorded");
}
@ -248,7 +248,7 @@ export class LogItem implements ILogItem {
return promiseResult;
}, err => {
throw this.catch(err);
});
}) as unknown as T;
} else {
this.finish();
return result;

4
src/logging/NullLogger.ts
View file

@ -59,7 +59,7 @@ export class NullLogItem implements ILogItem {
this.logger = logger;
}
wrap<T>(_: LabelOrValues, callback: LogCallback<T>): T | Promise<T> {
wrap<T>(_: LabelOrValues, callback: LogCallback<T>): T {
return callback(this);
}
@ -75,7 +75,7 @@ export class NullLogItem implements ILogItem {
return this.refDetached();
}
run<T>(callback: LogCallback<T>): T | Promise<T> {
run<T>(callback: LogCallback<T>): T {
return callback(this);
}