martinklepsch / shadow-src-map-issues

shadow-src-map-issues

This repo tries to demonstrate an issue with broken source maps when using the :node-library target in Shadow-CLJS.

Two helper scripts are included to verify source mapping:

• sourcemap.clj looks up the locations of an error using com.google.debugging.sourcemap.SourceMapConsumerV3 and returns the source file and line numbers as edn maps
• view-source.clj is a babashka script that takes this information and prints the relevant lines for each file that is part of the project.

:node-library repro process

shadow-cljs release srcmaptest

node -e 'var x = require("./functions/index"); x.throw()' 2>&1 | ./sourcemap.clj | ./view-source.clj

:node-script repro process

Note: Without --debug this also doesn't work.

shadow-cljs release srcmaptestscript --debug

node script/index.js 2>&1 | ./sourcemap.clj | ./view-source.clj