OptionalafterOptionalbeforeCalled right after parse is run.
OptionalcloneTransform a copy of input AST if true. Useful in case of AST reuse.
OptionalcommentsSpecify what comments to leave:
OptionaldebugOutput debug information to stderr.
OptionalfilenameFilename of input CSS, uses for source map generation.
OptionalforceEnables merging of
OptionalloggerFunction to track every step of transformation.
OptionalrestructureDisable or enable a structure optimisations.
OptionalsourceGenerate a source map when true.
OptionalusageUsage data for advanced optimisations.
Called right after compress() is run.