@suchipi/error-utils

Node.js utils for parsing error stacks, applying source maps to error stacks, etc

- ParsedError class
- can be constructed from an Error instance
- stack lines are parsed into a data structure with filename/line/column info
- can be manipulated and then converted back into a normal Error
- has a stack property getter which makes a V8-style stack string from the parsed stack frames
- applySourceMapsToParsedError function
- updates the line/column numbers on the stack frames of a ParsedError by using source maps
- returns a new ParsedError
- applySourceMapsToStackFrame function
- same as above but for a single StackFrame
- getStackFrame function
- given a stack offset number, gets a StackFrame instance from the current callstack.
- offset of 0 gives the call to getStackFrame.
- can be used to obtain the file name and (sometimes) function name of the currently-executing file, or one of its callers.
- isError function
- type predicate function
- returns true for objects with shape { name: string, message: string } when name ends with "Error"