Modified sunflower

test/codegen/expect/sunflower/painter.js

+var painter = dart.defineLibrary(painter, {});
+var math = dart.import(math);
+var dom = dart.import(dom);
+var core = dart.import(core);
+var circle = dart.import(circle);
+(function(exports, math, dom, core, circle) {
+  'use strict';
+  let ORANGE = "orange";
+  let RED = "red";
+  let BLUE = "blue";
+  let TAU = dart.notNull(math.PI) * 2;
+  function querySelector(selector) {
+    return dom.document.querySelector(selector);
+  }
+  dart.fn(querySelector, dom.Element, [core.String]);
+  dart.defineLazyProperties(exports, {
+    get canvas() {
+      return dart.as(querySelector("#canvas"), dom.CanvasElement);
+    },
+    get context() {
+      return dart.as(exports.canvas.getContext('2d'), dom.CanvasRenderingContext2D);
+    }
+  });
+  class CirclePainter extends core.Object {
+    CirclePainter() {
+      this.color = ORANGE;
+    }
+    draw(context) {
+      context.beginPath();
+      context.lineWidth = 2;
+      context.fillStyle = this.color;
+      context.strokeStyle = this.color;
+      context.arc(this.x, this.y, this.radius, 0, TAU, false);
+      context.fill();
+      context.closePath();
+      context.stroke();
+    }
+  }
+  CirclePainter[dart.implements] = () => [circle.Circle];
+  dart.setSignature(CirclePainter, {
+    methods: () => ({draw: [dart.void, [dom.CanvasRenderingContext2D]]})
+  });
+  // Exports:
+  exports.ORANGE = ORANGE;
+  exports.RED = RED;
+  exports.BLUE = BLUE;
+  exports.TAU = TAU;
+  exports.querySelector = querySelector;
+  exports.CirclePainter = CirclePainter;
+})(painter, math, dom, core, circle);