Function getLineStyles

src/codemirror.js:6897–6908

(cm, line, updateFrontier)

  }

  function getLineStyles(cm, line, updateFrontier) {
    if (!line.styles || line.styles[0] != cm.state.modeGen) {
      var state = getStateBefore(cm, lineNo(line));
      var result = highlightLine(cm, line, line.text.length > cm.options.maxHighlightLength ? copyState(cm.doc.mode, state) : state);
      line.stateAfter = state;
      line.styles = result.styles;
      if (result.classes) line.styleClasses = result.classes;
      else if (line.styleClasses) line.styleClasses = null;
      if (updateFrontier === cm.doc.frontier) cm.doc.frontier++;
    }
    return line.styles;
  }

  // Lightweight form of highlight -- proceed over this line and
  // update state, but don't save a style array. Used for lines that