prepare 3.0.0 release

package.json

@@ -42,6 +42,7 @@
     "@babel/plugin-transform-runtime": "7.6.2",
     "@babel/preset-env": "^7.6.3",
     "@babel/runtime": "7.6.3",
+    "@rollup/plugin-node-resolve": "^6.0.0",
     "@rollup/plugin-replace": "^2.2.0",
     "babel-eslint": "10.0.3",
     "babel-jest": "^24.9.0",
@@ -55,21 +56,18 @@
     "eslint-plugin-prettier": "2.6.0",
     "jest": "^24.9.0",
     "jsdom": "^11.11.0",
+    "launchdarkly-js-test-helpers": "1.1.0",
     "prettier": "1.11.1",
     "readline-sync": "1.4.9",
     "rimraf": "2.6.2",
     "rollup": "^1.26.0",
     "rollup-plugin-babel": "^4.3.3",
     "rollup-plugin-commonjs": "^10.1.0",
     "rollup-plugin-filesize": "^6.2.1",
-    "rollup-plugin-includepaths": "^0.2.3",
-    "rollup-plugin-node-builtins": "^2.1.2",
-    "rollup-plugin-node-resolve": "^5.2.0",
     "rollup-plugin-terser": "^5.1.2",
     "rollup-plugin-uglify": "^6.0.3",
     "semver": "5.5.0",
     "semver-compare": "1.0.0",
-    "sinon": "7.2.7",
     "typescript": "3.0.1"
   },
   "dependencies": {

rollup.config.js

@@ -1,11 +1,10 @@
 const pkg = require('./package.json');
-const resolve = require('rollup-plugin-node-resolve');
+const resolve = require('@rollup/plugin-node-resolve');
 const commonjs = require('rollup-plugin-commonjs');
 const babel = require('rollup-plugin-babel');
 const replace = require('@rollup/plugin-replace');
 const { terser } = require('rollup-plugin-terser');
 const { uglify } = require('rollup-plugin-uglify');
-const builtins = require('rollup-plugin-node-builtins');
 const filesize = require('rollup-plugin-filesize');
 
 const env = process.env.NODE_ENV || 'development';
@@ -18,7 +17,6 @@ const basePlugins = [
     'process.env.NODE_ENV': JSON.stringify(env),
     VERSION: JSON.stringify(version),
   }),
-  builtins(),
   resolve({
     mainFields: ['browser', 'module', 'main'],
     preferBuiltins: true,

src/EventProcessor.js

@@ -12,11 +12,13 @@ export default function EventProcessor(platform, options, environmentId, emitter
   const userFilter = UserFilter(options);
   const inlineUsers = options.inlineUsersInEvents;
   const samplingInterval = options.samplingInterval;
+  const eventCapacity = options.eventCapacity;
   const flushInterval = options.flushInterval;
   const logger = options.logger;
   let queue = [];
   let lastKnownPastTime = 0;
   let disabled = false;
+  let exceededCapacity = false;
   let flushTimer;
 
   function shouldSampleEvent() {
@@ -51,6 +53,18 @@ export default function EventProcessor(platform, options, environmentId, emitter
     return ret;
   }
 
+  function addToOutbox(event) {
+    if (queue.length < eventCapacity) {
+      queue.push(event);
+      exceededCapacity = false;
+    } else {
+      if (!exceededCapacity) {
+        exceededCapacity = true;
+        logger.warn(messages.eventCapacityExceeded());
+      }
+    }
+  }
+
   processor.enqueue = function(event) {
     if (disabled) {
       return;
@@ -73,14 +87,14 @@ export default function EventProcessor(platform, options, environmentId, emitter
     }
 
     if (addFullEvent) {
-      queue.push(makeOutputEvent(event));
+      addToOutbox(makeOutputEvent(event));
     }
     if (addDebugEvent) {
       const debugEvent = utils.extend({}, event, { kind: 'debug' });
       delete debugEvent['trackEvents'];
       delete debugEvent['debugEventsUntilDate'];
       delete debugEvent['variation'];
-      queue.push(debugEvent);
+      addToOutbox(debugEvent);
     }
   };