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import { ErrorWithExtra } from '../../util/util.js';
import { extractImportantStackTrace } from '../stack.js';
import { LogMessageRawData } from './result.js';
export class LogMessageWithStack extends Error {
readonly extra: unknown;
private stackHiddenMessage: string | undefined = undefined;
/**
* Wrap an Error (which was created to capture the stack at that point) into a
* LogMessageWithStack (which has extra stuff for good log messages).
*
* The original `ex.name` is ignored. Inclued it in the `name` parameter if it
* needs to be preserved.
*/
static wrapError(name: string, ex: Error | ErrorWithExtra) {
return new LogMessageWithStack({
name,
message: ex.message,
stackHiddenMessage: undefined,
stack: ex.stack,
extra: 'extra' in ex ? ex.extra : undefined,
});
}
constructor(o: LogMessageRawData) {
super(o.message);
this.name = o.name;
this.stackHiddenMessage = o.stackHiddenMessage;
this.stack = o.stack;
this.extra = o.extra;
}
/** Set a flag so the stack is not printed in toJSON(). */
setStackHidden(stackHiddenMessage: string) {
this.stackHiddenMessage ??= stackHiddenMessage;
}
/**
* Print the message for display.
*
* Note: This is toJSON instead of toString to make it easy to save logs using JSON.stringify.
*/
toJSON(): string {
let m = this.name;
if (this.message) m += ': ' + this.message;
if (this.stack) {
if (this.stackHiddenMessage === undefined) {
m += '\n' + extractImportantStackTrace(this);
} else if (this.stackHiddenMessage) {
m += `\n at (elided: ${this.stackHiddenMessage})`;
}
}
return m;
}
/**
* Flatten the message for sending over a message channel.
*
* Note `extra` may get mangled by postMessage.
*/
toRawData(): LogMessageRawData {
return {
name: this.name,
message: this.message,
stackHiddenMessage: this.stackHiddenMessage,
stack: this.stack,
extra: this.extra,
};
}
}
/**
* Returns a string, nicely indented, for debug logs.
* This is used in the cmdline and wpt runtimes. In WPT, it shows up in the `*-actual.txt` file.
*/
export function prettyPrintLog(log: LogMessageWithStack): string {
return ' - ' + log.toJSON().replace(/\n/g, '\n ');
}
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