6d60be3b73b0ef4e1353747eb8be4a9d904d34ba,bokeh/charts/builder/bar_builder.py,BarBuilder,_yield_renderers,#BarBuilder#,206

Before Change

        Takes reference points from data loaded at the ColumnDataSource.
        
        quartets = list(chunk(self._attr, 4))
        colors = cycle_colors(quartets, self.palette)

        // quartet elements are: [data, mid, stacked, cat]
        for i, quartet in enumerate(quartets):
            if self.stacked:
                glyph = Rect(
                    x="cat", y=quartet[2],
                    width="width", height=quartet[0],
                    fill_color=colors[i], fill_alpha=0.7,
                    line_color="white"
                )
            else:  // Grouped
                glyph = Rect(
                    x=quartet[3], y=quartet[1],
                    width="width_cat", height=quartet[0],
                    fill_color=colors[i], fill_alpha=0.7,
                    line_color="white"
                )
            renderer = GlyphRenderer(data_source=self._source, glyph=glyph)
            self.legends.append((self._groups[i], [renderer]))
            yield renderer

After Change

        Takes reference points from data loaded at the ColumnDataSource.
        

        color = self.attributes["color"]
        stack = self.attributes["stack"]

        for group in self._data.groupby(color, stack):

Instances