nl_tokens: Reports a given node if the specified feature is not supported .
pl_tokens: function report ( node , key ) { const version = supportInfo . version const feature = supportInfo . <mask> [ key ] if ( feature . supported ) { return } if ( ! feature . supportedInStrict ) { context . report ( { node , message : "{{feature}} {{be}} not supported yet on Node {{version}}." , data : { feature : feature . name , be : feature . singular ? "is" : "are" , version , } , } ) } else if ( ! nomalizeScope ( context . getScope ( ) , node ) . isStrict ) { context . report ( { node , message : "{{feature}} {{be}} not supported yet on Node {{version}}." , data : { feature : ` ${ feature . name } ` , be : feature . singular ? "is" : "are" , version , } , } ) } }