From d73d1008efddf286228cb7b8a79deb410593a644 Mon Sep 17 00:00:00 2001
From: Lukas Taegert-Atkinson <lukas.taegert-atkinson@tngtech.com>
Date: Mon, 13 May 2019 06:38:14 +0200
Subject: [PATCH] Add "isEntry" to "getModuleInfo"

---
 docs/05-plugins.md                                    |  1 +
 src/rollup/types.d.ts                                 |  1 +
 src/utils/pluginDriver.ts                             | 11 +++++++----
 .../samples/plugin-module-information/_config.js      |  4 ++++
 4 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/docs/05-plugins.md b/docs/05-plugins.md
index 42bb2ff8107..80d43290036 100644
--- a/docs/05-plugins.md
+++ b/docs/05-plugins.md
@@ -360,6 +360,7 @@ Returns additional information about the module in question in the form
 ```
 {
   id: string, // the id of the module, for convenience
+  isEntry: boolean, // is this a user- or plugin-defined entry point
   isExternal: boolean, // for external modules that are not included in the graph
   importedIds: string[], // the module ids imported by this module
   hasModuleSideEffects: boolean // are imports of this module included if nothing is imported from it
diff --git a/src/rollup/types.d.ts b/src/rollup/types.d.ts
index 70045292460..eec9479c6ab 100644
--- a/src/rollup/types.d.ts
+++ b/src/rollup/types.d.ts
@@ -125,6 +125,7 @@ export interface PluginContext extends MinimalPluginContext {
 		hasModuleSideEffects: boolean;
 		id: string;
 		importedIds: string[];
+		isEntry: boolean;
 		isExternal: boolean;
 	};
 	/** @deprecated Use `this.resolve` instead */
diff --git a/src/utils/pluginDriver.ts b/src/utils/pluginDriver.ts
index 848386e8066..0101233a8df 100644
--- a/src/utils/pluginDriver.ts
+++ b/src/utils/pluginDriver.ts
@@ -1,5 +1,6 @@
 import { EventEmitter } from 'events';
 import { version as rollupVersion } from 'package.json';
+import ExternalModule from '../ExternalModule';
 import Graph from '../Graph';
 import Module from '../Module';
 import {
@@ -177,10 +178,12 @@ export function createPluginDriver(
 				return {
 					hasModuleSideEffects: foundModule.moduleSideEffects,
 					id: foundModule.id,
-					importedIds: foundModule.isExternal
-						? []
-						: (foundModule as Module).sources.map(id => (foundModule as Module).resolvedIds[id].id),
-					isExternal: !!foundModule.isExternal
+					importedIds:
+						foundModule instanceof ExternalModule
+							? []
+							: foundModule.sources.map(id => foundModule.resolvedIds[id].id),
+					isEntry: foundModule instanceof Module && foundModule.isEntryPoint,
+					isExternal: foundModule instanceof ExternalModule
 				};
 			},
 			meta: {
diff --git a/test/function/samples/plugin-module-information/_config.js b/test/function/samples/plugin-module-information/_config.js
index 9ba23d507c4..d0d85651590 100644
--- a/test/function/samples/plugin-module-information/_config.js
+++ b/test/function/samples/plugin-module-information/_config.js
@@ -21,24 +21,28 @@ module.exports = {
 						hasModuleSideEffects: true,
 						id: ID_MAIN,
 						importedIds: [ID_FOO, ID_NESTED],
+						isEntry: true,
 						isExternal: false
 					});
 					assert.deepEqual(this.getModuleInfo(ID_FOO), {
 						hasModuleSideEffects: true,
 						id: ID_FOO,
 						importedIds: [ID_PATH],
+						isEntry: false,
 						isExternal: false
 					});
 					assert.deepEqual(this.getModuleInfo(ID_NESTED), {
 						hasModuleSideEffects: true,
 						id: ID_NESTED,
 						importedIds: [ID_FOO],
+						isEntry: false,
 						isExternal: false
 					});
 					assert.deepEqual(this.getModuleInfo(ID_PATH), {
 						hasModuleSideEffects: true,
 						id: ID_PATH,
 						importedIds: [],
+						isEntry: false,
 						isExternal: true
 					});
 				}