Find file and line number for custom openbook error code

gistfile1.txt

function decodeSerumErrorCode(customErrorCode) {
    // Extract the line number (lower 16 bits)
    const lineNumber = customErrorCode & 0xFFFF;

    // Extract the source file ID (upper 8 bits)
    const sourceFileId = (customErrorCode >> 24) & 0xFF;

    // Map the source file ID to the corresponding file name
    const sourceFileMap = {
        1: "src/state.rs",
        2: "src/matching.rs",
        3: "src/critbit.rs",
    };

    const fileName = sourceFileMap[sourceFileId] || "Unknown";

    return {
        file: fileName,
        line: lineNumber,
    };
}

// Example usage:
const customErrorCode = 0x10005f2;
const errorLocation = decodeSerumErrorCode(customErrorCode);
console.log(`Error in file: ${errorLocation.file}, line: ${errorLocation.line}`);