Module.SourceMap - module - Node

class Module.SourceMap

Usage in Deno

import { Module } from "node:module";

Constructors

new



SourceMap(payload: SourceMapPayload)

Properties

readonly



payload: SourceMapPayload

Getter for the payload used to construct the SourceMap instance.

Methods



findEntry(lineOffset: number,
columnOffset: number,
): SourceMapping

Given a line offset and column offset in the generated source file, returns an object representing the SourceMap range in the original file if found, or an empty object if not.

The object returned contains the following keys:

The returned value represents the raw range as it appears in the SourceMap, based on zero-indexed offsets, not 1-indexed line and column numbers as they appear in Error messages and CallSite objects.

To get the corresponding 1-indexed line and column numbers from a lineNumber and columnNumber as they are reported by Error stacks and CallSite objects, use sourceMap.findOrigin(lineNumber, columnNumber)



findOrigin(lineNumber: number,
columnNumber: number,
): SourceOrigin | {  }

Given a 1-indexed lineNumber and columnNumber from a call site in the generated source, find the corresponding call site location in the original source.

If the lineNumber and columnNumber provided are not found in any source map, then an empty object is returned.