nl_tokens: / * Checks if given node is a source file level declaration ( not nested in module / function ) . If isExported is true - then declaration must also be exported . This function is used in two cases : - check if node is a exported source file level value to determine if we should also export the value after its it changed - check if node is a source level declaration to emit it differently i . e non - exported variable statement var x = 1 is hoisted so we we emit variable statement var should be dropped .
pl_tokens: function isSourceFileLevelDeclarationInSystemJsModule ( node , isExported ) { if ( ! node || languageVersion >= 2 /* ES6 */ || ! isCurrentFileSystemExternalModule ( ) ) { return false ; } var current = node ; while ( current ) { if ( current . kind === 248 /* SourceFile */ ) { return ! isExported || ( ( ts . getCombinedNodeFlags ( node ) & 1 /* Export */ ) !== 0 ) ; } else if ( ts . isFunctionLike ( current ) || current . kind === 219 /* ModuleBlock */ ) { return false ; } else { current = <mask> . parent ; } } }