lazily create a `` new '' externs root for undeclared variables . concode_field_sep String exportPropertyFunction concode_elem_sep String PROTOTYPE_PROPERTY concode_elem_sep boolean allowNonGlobalExports concode_elem_sep AbstractCompiler compiler concode_elem_sep String exportSymbolFunction concode_field_sep void addStatement concode_elem_sep void process concode_elem_sep void addExtern concode_elem_sep void annotate concode_elem_sep void addExportMethod concode_elem_sep String getPropertyName
Node function ( ) { return compiler . getSynthesizedExternsInput ( ) . getAstRoot ( compiler ) ; }