question: get the current nesting depth of this diagnostic context . concode_field_sep Hashtable ht concode_elem_sep int pushCounter concode_elem_sep String fullMessage concode_elem_sep String message concode_elem_sep int REAP_THRESHOLD concode_field_sep String pop concode_elem_sep Stack getCurrentStack concode_elem_sep void lazyRemove concode_elem_sep void setMaxDepth concode_elem_sep void inherit concode_elem_sep String get concode_elem_sep void clear concode_elem_sep Stack cloneStack concode_elem_sep void push concode_elem_sep void remove concode_elem_sep String peek
target: int function ( ) { Stack loc0 = getCurrentStack ( ) ; if ( loc0 == null ) return 0 ; else return loc0 . size ( ) ; }