question: this method pushes an element `` stack frame '' but with no initialization of values in that frame . this method is used for optimization purposes , like when pushing a stack frame for an html `` img '' tag which has no children and the stack frame will almost immediately be popped . concode_field_sep String m_elementLocalName concode_elem_sep String m_elementName concode_elem_sep boolean m_isRaw concode_elem_sep int m_currentElemDepth concode_elem_sep ElemDesc m_elementDesc concode_elem_sep String m_elementURI concode_elem_sep ElemContext m_prev concode_elem_sep boolean m_startTagOpen concode_elem_sep boolean m_isCdataSection concode_elem_sep ElemContext m_next concode_field_sep ElemContext pop
target: ElemContext function ( ) { ElemContext loc0 = this . m_next ; if ( loc0 == null ) { loc0 = new ElemContext ( this ) ; this . m_next = loc0 ; } loc0 . m_startTagOpen = true ; return loc0 ; }