spatie/sourcemaps-lookup
Fast, memory-efficient Source Map v3 lookup for PHP. Resolve JavaScript stack frames to original source file, line/column, symbol name, and enclosing scope. Optimized for the read path and high-volume error symbolicating from uploaded sourcemaps.
$map->sourceNames(); // list<?string>: the raw sources[] array, unresolved
This returns the original sources array as is (without applying sourceRoot). It's useful for diagnostics or surfacing a list of available files.
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