Implement modular compilation

test/codegen/expect/sunflower/sunflower.js

-dart_library.library('sunflower/sunflower', null, /* Imports */[
-  'dart/_runtime',
-  'sunflower/dom',
-  'dart/core',
-  'dart/math',
-  'sunflower/painter',
-  'sunflower/circle'
-], /* Lazy imports */[
-], function(exports, dart, dom, core, math, painter, circle) {
+dart_library.library('sunflower', null, /* Imports */[
+  'dart_sdk'
+], function(exports, dart_sdk) {
   'use strict';
-  let dartx = dart.dartx;
-  const SEED_RADIUS = 2;
-  const SCALE_FACTOR = 4;
-  const MAX_D = 300;
-  const centerX = dart.notNull(MAX_D) / 2;
-  const centerY = centerX;
-  function querySelector(selector) {
-    return dom.document.querySelector(selector);
-  }
-  dart.fn(querySelector, dom.Element, [core.String]);
-  dart.defineLazyProperties(exports, {
+  const core = dart_sdk.core;
+  const html = dart_sdk.html;
+  const math = dart_sdk.math;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const sunflower = Object.create(null);
+  const circle = Object.create(null);
+  const painter = Object.create(null);
+  sunflower.SEED_RADIUS = 2;
+  sunflower.SCALE_FACTOR = 4;
+  sunflower.MAX_D = 300;
+  sunflower.centerX = dart.notNull(sunflower.MAX_D) / 2;
+  sunflower.centerY = sunflower.centerX;
+  sunflower.querySelector = function(selector) {
+    return html.document[dartx.querySelector](selector);
+  };
+  dart.fn(sunflower.querySelector, html.Element, [core.String]);
+  dart.defineLazy(sunflower, {
     get canvas() {
-      return dart.as(querySelector("#canvas"), dom.CanvasElement);
+      return dart.as(sunflower.querySelector("#canvas"), html.CanvasElement);
     }
   });
-  dart.defineLazyProperties(exports, {
+  dart.defineLazy(sunflower, {
     get context() {
-      return dart.as(exports.canvas.getContext('2d'), dom.CanvasRenderingContext2D);
+      return dart.as(sunflower.canvas[dartx.getContext]('2d'), html.CanvasRenderingContext2D);
     }
   });
-  dart.defineLazyProperties(exports, {
+  dart.defineLazy(sunflower, {
     get slider() {
-      return dart.as(querySelector("#slider"), dom.InputElement);
+      return dart.as(sunflower.querySelector("#slider"), html.InputElement);
     }
   });
-  dart.defineLazyProperties(exports, {
+  dart.defineLazy(sunflower, {
     get notes() {
-      return querySelector("#notes");
+      return sunflower.querySelector("#notes");
     }
   });
-  dart.defineLazyProperties(exports, {
+  dart.defineLazy(sunflower, {
     get PHI() {
       return (dart.notNull(math.sqrt(5)) + 1) / 2;
     }
   });
-  exports.seeds = 0;
-  function main() {
-    exports.slider.addEventListener('change', dart.fn(e => draw(), dart.void, [dom.Event]));
-    draw();
-  }
-  dart.fn(main, dart.void, []);
-  function draw() {
-    exports.seeds = core.int.parse(exports.slider.value);
-    exports.context.clearRect(0, 0, MAX_D, MAX_D);
-    for (let i = 0; i < dart.notNull(exports.seeds); i++) {
-      let theta = i * dart.notNull(painter.TAU) / dart.notNull(exports.PHI);
-      let r = dart.notNull(math.sqrt(i)) * dart.notNull(SCALE_FACTOR);
-      let x = dart.notNull(centerX) + r * dart.notNull(math.cos(theta));
-      let y = dart.notNull(centerY) - r * dart.notNull(math.sin(theta));
-      new SunflowerSeed(x, y, SEED_RADIUS).draw(exports.context);
+  sunflower.seeds = 0;
+  sunflower.main = function() {
+    sunflower.slider[dartx.addEventListener]('change', dart.fn(e => sunflower.draw(), dart.void, [html.Event]));
+    sunflower.draw();
+  };
+  dart.fn(sunflower.main, dart.void, []);
+  sunflower.draw = function() {
+    sunflower.seeds = core.int.parse(sunflower.slider[dartx.value]);
+    sunflower.context[dartx.clearRect](0, 0, sunflower.MAX_D, sunflower.MAX_D);
+    for (let i = 0; i < dart.notNull(sunflower.seeds); i++) {
+      let theta = i * dart.notNull(painter.TAU) / dart.notNull(sunflower.PHI);
+      let r = dart.notNull(math.sqrt(i)) * dart.notNull(sunflower.SCALE_FACTOR);
+      let x = dart.notNull(sunflower.centerX) + r * dart.notNull(math.cos(theta));
+      let y = dart.notNull(sunflower.centerY) - r * dart.notNull(math.sin(theta));
+      new sunflower.SunflowerSeed(x, y, sunflower.SEED_RADIUS).draw(sunflower.context);
     }
-    exports.notes.textContent = `${exports.seeds} seeds`;
-  }
-  dart.fn(draw, dart.void, []);
-  class SunflowerSeed extends dart.mixin(circle.Circle, painter.CirclePainter) {
+    sunflower.notes[dartx.text] = `${sunflower.seeds} seeds`;
+  };
+  dart.fn(sunflower.draw, dart.void, []);
+  circle.Circle = class Circle extends core.Object {
+    Circle(x, y, radius) {
+      this.x = x;
+      this.y = y;
+      this.radius = radius;
+    }
+  };
+  dart.setSignature(circle.Circle, {
+    constructors: () => ({Circle: [circle.Circle, [core.num, core.num, core.num]]})
+  });
+  painter.CirclePainter = class CirclePainter extends core.Object {
+    CirclePainter() {
+      this.color = painter.ORANGE;
+    }
+    draw(context) {
+      context[dartx.beginPath]();
+      context[dartx.lineWidth] = 2;
+      context[dartx.fillStyle] = this.color;
+      context[dartx.strokeStyle] = this.color;
+      context[dartx.arc](this.x, this.y, this.radius, 0, painter.TAU, false);
+      context[dartx.fill]();
+      context[dartx.closePath]();
+      context[dartx.stroke]();
+    }
+  };
+  painter.CirclePainter[dart.implements] = () => [circle.Circle];
+  dart.setSignature(painter.CirclePainter, {
+    methods: () => ({draw: [dart.void, [html.CanvasRenderingContext2D]]})
+  });
+  sunflower.SunflowerSeed = class SunflowerSeed extends dart.mixin(circle.Circle, painter.CirclePainter) {
     SunflowerSeed(x, y, radius, color) {
       if (color === void 0) color = null;
       super.Circle(x, y, radius);
       if (color != null) this.color = color;
     }
-  }
-  dart.setSignature(SunflowerSeed, {
-    constructors: () => ({SunflowerSeed: [SunflowerSeed, [core.num, core.num, core.num], [core.String]]})
+  };
+  dart.setSignature(sunflower.SunflowerSeed, {
+    constructors: () => ({SunflowerSeed: [sunflower.SunflowerSeed, [core.num, core.num, core.num], [core.String]]})
+  });
+  painter.ORANGE = "orange";
+  painter.RED = "red";
+  painter.BLUE = "blue";
+  painter.TAU = dart.notNull(math.PI) * 2;
+  painter.querySelector = function(selector) {
+    return html.document[dartx.querySelector](selector);
+  };
+  dart.fn(painter.querySelector, html.Element, [core.String]);
+  dart.defineLazy(painter, {
+    get canvas() {
+      return dart.as(painter.querySelector("#canvas"), html.CanvasElement);
+    }
+  });
+  dart.defineLazy(painter, {
+    get context() {
+      return dart.as(painter.canvas[dartx.getContext]('2d'), html.CanvasRenderingContext2D);
+    }
   });
   // Exports:
-  exports.SEED_RADIUS = SEED_RADIUS;
-  exports.SCALE_FACTOR = SCALE_FACTOR;
-  exports.MAX_D = MAX_D;
-  exports.centerX = centerX;
-  exports.centerY = centerY;
-  exports.querySelector = querySelector;
-  exports.main = main;
-  exports.draw = draw;
-  exports.SunflowerSeed = SunflowerSeed;
+  exports.sunflower = sunflower;
+  exports.circle = circle;
+  exports.painter = painter;
 });
+
+//# sourceMappingURL=sunflower.js.map