GT2/Ejectable/node_modules/react-native/Libraries/LogBox/Data/LogBoxSymbolication.js

65 lines
1.7 KiB
JavaScript

/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @flow strict-local
* @format
*/
'use strict';
import symbolicateStackTrace from '../../Core/Devtools/symbolicateStackTrace';
import type {StackFrame} from '../../Core/NativeExceptionsManager';
import type {SymbolicatedStackTrace} from '../../Core/Devtools/symbolicateStackTrace';
export type Stack = Array<StackFrame>;
const cache: Map<Stack, Promise<SymbolicatedStackTrace>> = new Map();
/**
* Sanitize because sometimes, `symbolicateStackTrace` gives us invalid values.
*/
const sanitize = ({
stack: maybeStack,
codeFrame,
}: SymbolicatedStackTrace): SymbolicatedStackTrace => {
if (!Array.isArray(maybeStack)) {
throw new Error('Expected stack to be an array.');
}
const stack = [];
for (const maybeFrame of maybeStack) {
let collapse = false;
if ('collapse' in maybeFrame) {
if (typeof maybeFrame.collapse !== 'boolean') {
throw new Error('Expected stack frame `collapse` to be a boolean.');
}
collapse = maybeFrame.collapse;
}
stack.push({
column: maybeFrame.column,
file: maybeFrame.file,
lineNumber: maybeFrame.lineNumber,
methodName: maybeFrame.methodName,
collapse,
});
}
return {stack, codeFrame};
};
export function deleteStack(stack: Stack): void {
cache.delete(stack);
}
export function symbolicate(stack: Stack): Promise<SymbolicatedStackTrace> {
let promise = cache.get(stack);
if (promise == null) {
promise = symbolicateStackTrace(stack).then(sanitize);
cache.set(stack, promise);
}
return promise;
}