Runtime type errors from Range.integers in pie_layout.dart

[gian]

Hi there,

I've hit a type error when running the examples (and my own code...):

Exception: type 'List<num>' is not a subtype of type 'List<int>' of 'index' where
  List is from dart:core
  num is from dart:core
  List is from dart:core
  int is from dart:core
PieLayout.layout | @ | package:charted/layout/src/pie_layout.dart:53
-- | -- | --
PieChartRenderer.layout | @ | package:charted/charts/layout_renderers/pie_chart_renderer.dart:108
DefaultLayoutAreaImpl.draw | @ | package:charted/charts/src/layout_area_impl.dart:250
drawSimplePieChart | @ | demo_pie_charts.dart:25
main | @ | demo_pie_charts.dart:50

The offending line is:

List<int> index = new Range.integers(values.length).toList();

Which appears to relate to the inferred bound on Range.integers being List<num>.

This isn't insurmountable because it only occurs in Dartium, and this works as expected when using dartdevc in regular ol' Chrome instead --- it's just slightly frustrating given my workflow.

I encountered this issue using charted 0.5.0 and dart 1.24.3.

Thanks for the release of charted!

[midoringo8823]

Will get this fixed soon

[srawlins]

Fixed with #231

[gian]

Thanks, really appreciate the fix!