Merge pull request #7165 from webpack/performance/cache-hash

improve NormalModule performance

lib/NormalModule.js

@@ -22,6 +22,7 @@ const ModuleParseError = require("./ModuleParseError");
 const ModuleBuildError = require("./ModuleBuildError");
 const ModuleError = require("./ModuleError");
 const ModuleWarning = require("./ModuleWarning");
+const createHash = require("./util/createHash");
 
 const asString = buf => {
 	if (Buffer.isBuffer(buf)) {
@@ -89,6 +90,7 @@ class NormalModule extends Module {
 		// Info from Build
 		this.error = null;
 		this._source = null;
+		this._buildHash = "";
 		this.buildTimestamp = undefined;
 		this._cachedSource = undefined;
 		this._cachedSourceHash = undefined;
@@ -327,11 +329,23 @@ class NormalModule extends Module {
 		return false;
 	}
 
+	_initBuildHash(compilation) {
+		const hash = createHash(compilation.outputOptions.hashFunction);
+		if (this._source) {
+			hash.update("source");
+			this._source.updateHash(hash);
+		}
+		hash.update("meta");
+		hash.update(JSON.stringify(this.buildMeta));
+		this._buildHash = hash.digest("hex");
+	}
+
 	build(options, compilation, resolver, fs, callback) {
 		this.buildTimestamp = Date.now();
 		this.built = true;
 		this._source = null;
 		this._ast = null;
+		this._buildHash = "";
 		this.error = null;
 		this.errors.length = 0;
 		this.warnings.length = 0;
@@ -349,6 +363,7 @@ class NormalModule extends Module {
 			// if we have an error mark module as failed and exit
 			if (err) {
 				this.markModuleAsErrored(err);
+				this._initBuildHash(compilation);
 				return callback();
 			}
 
@@ -356,6 +371,7 @@ class NormalModule extends Module {
 			// if so, exit here;
 			const noParseRule = options.module && options.module.noParse;
 			if (this.shouldPreventParsing(noParseRule, this.request)) {
+				this._initBuildHash(compilation);
 				return callback();
 			}
 
@@ -363,11 +379,13 @@ class NormalModule extends Module {
 				const source = this._source.source();
 				const error = new ModuleParseError(this, source, e);
 				this.markModuleAsErrored(error);
+				this._initBuildHash(compilation);
 				return callback();
 			};
 
 			const handleParseResult = result => {
 				this._lastSuccessfulBuildMeta = this.buildMeta;
+				this._initBuildHash(compilation);
 				return callback();
 			};
 
@@ -454,23 +472,8 @@ class NormalModule extends Module {
 		return this._source ? this._source.size() : -1;
 	}
 
-	updateHashWithSource(hash) {
-		if (!this._source) {
-			hash.update("null");
-			return;
-		}
-		hash.update("source");
-		this._source.updateHash(hash);
-	}
-
-	updateHashWithMeta(hash) {
-		hash.update("meta");
-		hash.update(JSON.stringify(this.buildMeta));
-	}
-
 	updateHash(hash) {
-		this.updateHashWithSource(hash);
+		hash.update(this._buildHash);
-		this.updateHashWithMeta(hash);
 		super.updateHash(hash);
 	}
 }

test/NormalModule.unittest.js

@@ -184,38 +184,6 @@ describe("NormalModule", () => {
 		});
 	});
 
-	describe("#updateHashWithSource", () => {
-		let hashSpy;
-		let hash;
-		beforeEach(() => {
-			hashSpy = sinon.spy();
-			hash = {
-				update: hashSpy
-			};
-		});
-		describe("without the module having any source", () => {
-			beforeEach(() => {
-				normalModule._source = null;
-			});
-			it('calls hash function with "null"', () => {
-				normalModule.updateHashWithSource(hash);
-				expect(hashSpy.callCount).toBe(1);
-				expect(hashSpy.args[0][0]).toBe("null");
-			});
-		});
-		describe("without the module having source", () => {
-			let expectedSource = "some source";
-			beforeEach(() => {
-				normalModule._source = new RawSource(expectedSource);
-			});
-			it('calls hash function with "source" and then the actual source of the module', function() {
-				normalModule.updateHashWithSource(hash);
-				expect(hashSpy.callCount).toBe(2);
-				expect(hashSpy.args[0][0]).toBe("source");
-				expect(hashSpy.args[1][0]).toBe(expectedSource);
-			});
-		});
-	});
 	describe("#hasDependencies", () => {
 		it("returns true if has dependencies", () => {
 			normalModule.addDependency(new NullDependency());

test/__snapshots__/StatsTestCases.test.js.snap

@@ -1,124 +1,124 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
 exports[`StatsTestCases should print correct stats for aggressive-splitting-entry 1`] = `
-"Hash: e3ba3c1dddc97b92dbf7e3ba3c1dddc97b92dbf7
+"Hash: b907386938ff12cf9dbbb907386938ff12cf9dbb
 Child fitting:
-    Hash: e3ba3c1dddc97b92dbf7
+    Hash: b907386938ff12cf9dbb
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
                       Asset      Size  Chunks             Chunk Names
-    fb95acf7c457672e70d0.js  1.05 KiB       0  [emitted]  
+    9ac13fb7087e9ff1b93e.js  1.05 KiB       0  [emitted]  
-    2795fd99577b4ba7fef2.js  10.2 KiB       1  [emitted]  
+    077726e3805b482fd93e.js  10.2 KiB       1  [emitted]  
-    d43339a3d0f86c6b8d90.js  1.94 KiB       2  [emitted]  
+    d1ba53816ff760e185b0.js  1.94 KiB       2  [emitted]  
-    6c7fb52c5514dbfbf094.js  1.94 KiB       3  [emitted]  
+    7b5b0a943e9362bc88c6.js  1.94 KiB       3  [emitted]  
-    Entrypoint main = d43339a3d0f86c6b8d90.js 6c7fb52c5514dbfbf094.js 2795fd99577b4ba7fef2.js
+    Entrypoint main = d1ba53816ff760e185b0.js 7b5b0a943e9362bc88c6.js 077726e3805b482fd93e.js
-    chunk    {0} fb95acf7c457672e70d0.js 916 bytes <{1}> <{2}> <{3}>
+    chunk    {0} 9ac13fb7087e9ff1b93e.js 916 bytes <{1}> <{2}> <{3}>
         > ./g [4] ./index.js 7:0-13
      [7] ./g.js 916 bytes {0} [built]
-    chunk    {1} 2795fd99577b4ba7fef2.js 1.87 KiB ={2}= ={3}= >{0}< [entry] [rendered]
+    chunk    {1} 077726e3805b482fd93e.js 1.87 KiB ={2}= ={3}= >{0}< [entry] [rendered]
         > ./index main
      [3] ./e.js 899 bytes {1} [built]
      [4] ./index.js 111 bytes {1} [built]
      [6] ./f.js 900 bytes {1} [built]
-    chunk    {2} d43339a3d0f86c6b8d90.js 1.76 KiB ={1}= ={3}= >{0}< [initial] [rendered] [recorded] aggressive splitted
+    chunk    {2} d1ba53816ff760e185b0.js 1.76 KiB ={1}= ={3}= >{0}< [initial] [rendered] [recorded] aggressive splitted
         > ./index main
      [0] ./b.js 899 bytes {2} [built]
      [5] ./a.js 899 bytes {2} [built]
-    chunk    {3} 6c7fb52c5514dbfbf094.js 1.76 KiB ={1}= ={2}= >{0}< [initial] [rendered] [recorded] aggressive splitted
+    chunk    {3} 7b5b0a943e9362bc88c6.js 1.76 KiB ={1}= ={2}= >{0}< [initial] [rendered] [recorded] aggressive splitted
         > ./index main
      [1] ./c.js 899 bytes {3} [built]
      [2] ./d.js 899 bytes {3} [built]
 Child content-change:
-    Hash: e3ba3c1dddc97b92dbf7
+    Hash: b907386938ff12cf9dbb
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
                       Asset      Size  Chunks             Chunk Names
-    fb95acf7c457672e70d0.js  1.05 KiB       0  [emitted]  
+    9ac13fb7087e9ff1b93e.js  1.05 KiB       0  [emitted]  
-    2795fd99577b4ba7fef2.js  10.2 KiB       1  [emitted]  
+    077726e3805b482fd93e.js  10.2 KiB       1  [emitted]  
-    d43339a3d0f86c6b8d90.js  1.94 KiB       2  [emitted]  
+    d1ba53816ff760e185b0.js  1.94 KiB       2  [emitted]  
-    6c7fb52c5514dbfbf094.js  1.94 KiB       3  [emitted]  
+    7b5b0a943e9362bc88c6.js  1.94 KiB       3  [emitted]  
-    Entrypoint main = d43339a3d0f86c6b8d90.js 6c7fb52c5514dbfbf094.js 2795fd99577b4ba7fef2.js
+    Entrypoint main = d1ba53816ff760e185b0.js 7b5b0a943e9362bc88c6.js 077726e3805b482fd93e.js
-    chunk    {0} fb95acf7c457672e70d0.js 916 bytes <{1}> <{2}> <{3}>
+    chunk    {0} 9ac13fb7087e9ff1b93e.js 916 bytes <{1}> <{2}> <{3}>
         > ./g [4] ./index.js 7:0-13
      [7] ./g.js 916 bytes {0} [built]
-    chunk    {1} 2795fd99577b4ba7fef2.js 1.87 KiB ={2}= ={3}= >{0}< [entry] [rendered]
+    chunk    {1} 077726e3805b482fd93e.js 1.87 KiB ={2}= ={3}= >{0}< [entry] [rendered]
         > ./index main
      [3] ./e.js 899 bytes {1} [built]
      [4] ./index.js 111 bytes {1} [built]
      [6] ./f.js 900 bytes {1} [built]
-    chunk    {2} d43339a3d0f86c6b8d90.js 1.76 KiB ={1}= ={3}= >{0}< [initial] [rendered] [recorded] aggressive splitted
+    chunk    {2} d1ba53816ff760e185b0.js 1.76 KiB ={1}= ={3}= >{0}< [initial] [rendered] [recorded] aggressive splitted
         > ./index main
      [0] ./b.js 899 bytes {2} [built]
      [5] ./a.js 899 bytes {2} [built]
-    chunk    {3} 6c7fb52c5514dbfbf094.js 1.76 KiB ={1}= ={2}= >{0}< [initial] [rendered] [recorded] aggressive splitted
+    chunk    {3} 7b5b0a943e9362bc88c6.js 1.76 KiB ={1}= ={2}= >{0}< [initial] [rendered] [recorded] aggressive splitted
         > ./index main
      [1] ./c.js 899 bytes {3} [built]
      [2] ./d.js 899 bytes {3} [built]"
 `;
 
 exports[`StatsTestCases should print correct stats for aggressive-splitting-on-demand 1`] = `
-"Hash: 0bbde62e97b9652dcaac
+"Hash: d1ec33892177d3771968
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
                   Asset      Size  Chunks             Chunk Names
-620d3f8d9bdb989cde07.js  1.94 KiB    6, 7  [emitted]  
+cf8697fa2c994f39a5d4.js  1.94 KiB    6, 7  [emitted]  
-4467a9f70ef8365bcb32.js  1.93 KiB       0  [emitted]  
+fd868baa40dab4fc30fd.js  1.93 KiB       0  [emitted]  
-8debdc7e72b763a13e35.js  1.96 KiB       2  [emitted]  
+79c527bb5bf9cba1dc12.js  1.96 KiB       2  [emitted]  
-6a2c2702ac98f9f90db9.js  1.94 KiB    3, 1  [emitted]  
+e9d82e81fefd7353e8df.js  1.94 KiB    3, 1  [emitted]  
-258ba4b441feff644266.js  1.01 KiB       4  [emitted]  
+ae76098eeb55b9c448f2.js  1.01 KiB       4  [emitted]  
-8ae4998ca98adb2a08ea.js  1.94 KiB       5  [emitted]  
+05d92aaacfbffa4b7e56.js  1.94 KiB       5  [emitted]  
-aafb9d82e452def4c3bb.js     1 KiB       1  [emitted]  
+d6418937dfae4b3ee922.js     1 KiB       1  [emitted]  
-344e13508b62e833aacf.js     1 KiB       7  [emitted]  
+685acdc95ff4af957f47.js     1 KiB       7  [emitted]  
-2aaed192bbfbc2302c53.js  1.94 KiB       8  [emitted]  
+606f48c13070850338b1.js  1.94 KiB       8  [emitted]  
-72e04d4eaed46d9aac4c.js  1.94 KiB       9  [emitted]  
+c5a8eae840969538f450.js  1.94 KiB       9  [emitted]  
-d19dabec0d62bca26765.js  8.68 KiB      10  [emitted]  main
+3bf16d513625c7c39e6f.js  8.68 KiB      10  [emitted]  main
-1165c0cca1ba14a506ff.js  1.94 KiB      11  [emitted]  
+fcdf398c8972e4dcf788.js  1.94 KiB      11  [emitted]  
-Entrypoint main = d19dabec0d62bca26765.js
+Entrypoint main = 3bf16d513625c7c39e6f.js
-chunk    {0} 4467a9f70ef8365bcb32.js 1.76 KiB <{10}> ={1}= ={2}= ={3}= ={7}= ={9}= [recorded] aggressive splitted
+chunk    {0} fd868baa40dab4fc30fd.js 1.76 KiB <{10}> ={1}= ={2}= ={3}= ={7}= ={9}= [recorded] aggressive splitted
     > ./b ./d ./e ./f ./g [11] ./index.js 5:0-44
     > ./b ./d ./e ./f ./g ./h ./i ./j ./k [11] ./index.js 6:0-72
  [0] ./b.js 899 bytes {0} {5} [built]
  [1] ./d.js 899 bytes {0} {8} [built]
-chunk    {1} aafb9d82e452def4c3bb.js 899 bytes <{10}> ={0}= ={2}= ={8}=
+chunk    {1} d6418937dfae4b3ee922.js 899 bytes <{10}> ={0}= ={2}= ={8}=
     > ./c ./d ./e [11] ./index.js 3:0-30
     > ./b ./d ./e ./f ./g [11] ./index.js 5:0-44
  [2] ./e.js 899 bytes {1} {3} [built]
-chunk    {2} 8debdc7e72b763a13e35.js 1.76 KiB <{10}> ={0}= ={1}= ={11}= ={3}= ={6}= ={7}= ={9}= [recorded] aggressive splitted
+chunk    {2} 79c527bb5bf9cba1dc12.js 1.76 KiB <{10}> ={0}= ={1}= ={11}= ={3}= ={6}= ={7}= ={9}= [recorded] aggressive splitted
     > ./f ./g ./h ./i ./j ./k [11] ./index.js 4:0-51
     > ./b ./d ./e ./f ./g [11] ./index.js 5:0-44
     > ./b ./d ./e ./f ./g ./h ./i ./j ./k [11] ./index.js 6:0-72
  [3] ./f.js 899 bytes {2} [built]
  [4] ./g.js 901 bytes {2} [built]
-chunk    {3} 6a2c2702ac98f9f90db9.js 1.76 KiB <{10}> ={0}= ={2}= ={7}= ={9}= [rendered] [recorded] aggressive splitted
+chunk    {3} e9d82e81fefd7353e8df.js 1.76 KiB <{10}> ={0}= ={2}= ={7}= ={9}= [rendered] [recorded] aggressive splitted
     > ./b ./d ./e ./f ./g ./h ./i ./j ./k [11] ./index.js 6:0-72
  [2] ./e.js 899 bytes {1} {3} [built]
  [6] ./h.js 899 bytes {3} {11} [built]
-chunk    {4} 258ba4b441feff644266.js 899 bytes <{10}>
+chunk    {4} ae76098eeb55b9c448f2.js 899 bytes <{10}>
     > ./a [11] ./index.js 1:0-16
  [10] ./a.js 899 bytes {4} [built]
-chunk    {5} 8ae4998ca98adb2a08ea.js 1.76 KiB <{10}>
+chunk    {5} 05d92aaacfbffa4b7e56.js 1.76 KiB <{10}>
     > ./b ./c [11] ./index.js 2:0-23
  [0] ./b.js 899 bytes {0} {5} [built]
  [5] ./c.js 899 bytes {5} {8} [built]
-chunk    {6} 620d3f8d9bdb989cde07.js 1.76 KiB <{10}> ={11}= ={2}=
+chunk    {6} cf8697fa2c994f39a5d4.js 1.76 KiB <{10}> ={11}= ={2}=
     > ./f ./g ./h ./i ./j ./k [11] ./index.js 4:0-51
  [8] ./j.js 901 bytes {6} {9} [built]
  [9] ./k.js 899 bytes {6} {7} [built]
-chunk    {7} 344e13508b62e833aacf.js 899 bytes <{10}> ={0}= ={2}= ={3}= ={9}=
+chunk    {7} 685acdc95ff4af957f47.js 899 bytes <{10}> ={0}= ={2}= ={3}= ={9}=
     > ./b ./d ./e ./f ./g ./h ./i ./j ./k [11] ./index.js 6:0-72
  [9] ./k.js 899 bytes {6} {7} [built]
-chunk    {8} 2aaed192bbfbc2302c53.js 1.76 KiB <{10}> ={1}= [recorded] aggressive splitted
+chunk    {8} 606f48c13070850338b1.js 1.76 KiB <{10}> ={1}= [recorded] aggressive splitted
     > ./c ./d ./e [11] ./index.js 3:0-30
  [1] ./d.js 899 bytes {0} {8} [built]
  [5] ./c.js 899 bytes {5} {8} [built]
-chunk    {9} 72e04d4eaed46d9aac4c.js 1.76 KiB <{10}> ={0}= ={2}= ={3}= ={7}= [rendered] [recorded] aggressive splitted
+chunk    {9} c5a8eae840969538f450.js 1.76 KiB <{10}> ={0}= ={2}= ={3}= ={7}= [rendered] [recorded] aggressive splitted
     > ./b ./d ./e ./f ./g ./h ./i ./j ./k [11] ./index.js 6:0-72
  [7] ./i.js 899 bytes {9} {11} [built]
  [8] ./j.js 901 bytes {6} {9} [built]
-chunk   {10} d19dabec0d62bca26765.js (main) 248 bytes >{0}< >{1}< >{11}< >{2}< >{3}< >{4}< >{5}< >{6}< >{7}< >{8}< >{9}< [entry] [rendered]
+chunk   {10} 3bf16d513625c7c39e6f.js (main) 248 bytes >{0}< >{1}< >{11}< >{2}< >{3}< >{4}< >{5}< >{6}< >{7}< >{8}< >{9}< [entry] [rendered]
     > ./index main
  [11] ./index.js 248 bytes {10} [built]
-chunk   {11} 1165c0cca1ba14a506ff.js 1.76 KiB <{10}> ={2}= ={6}= [rendered] [recorded] aggressive splitted
+chunk   {11} fcdf398c8972e4dcf788.js 1.76 KiB <{10}> ={2}= ={6}= [rendered] [recorded] aggressive splitted
     > ./f ./g ./h ./i ./j ./k [11] ./index.js 4:0-51
  [6] ./h.js 899 bytes {3} {11} [built]
  [7] ./i.js 899 bytes {9} {11} [built]"
@@ -467,7 +467,7 @@ Child all:
 `;
 
 exports[`StatsTestCases should print correct stats for chunk-module-id-range 1`] = `
-"Hash: 27b68d27e07b42624dae
+"Hash: 0bb3f504cf6cc3cbace1
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
    Asset      Size  Chunks             Chunk Names
@@ -492,7 +492,7 @@ chunk    {1} main1.js (main1) 136 bytes [entry] [rendered]
 `;
 
 exports[`StatsTestCases should print correct stats for chunks 1`] = `
-"Hash: e99cd61934506d7567a3
+"Hash: 41fab27e5669c037a625
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
       Asset       Size  Chunks             Chunk Names
@@ -530,7 +530,7 @@ chunk    {3} 3.bundle.js 44 bytes <{1}> [rendered]
 `;
 
 exports[`StatsTestCases should print correct stats for chunks-development 1`] = `
-"Hash: d8b40b77893587325329
+"Hash: 7724565418b8b6c8467a
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
       Asset       Size  Chunks             Chunk Names
@@ -581,7 +581,7 @@ chunk    {3} 3.bundle.js (c) 98 bytes <{0}> <{1}> >{0}< >{1}< [rendered]
 `;
 
 exports[`StatsTestCases should print correct stats for color-disabled 1`] = `
-"Hash: 0b32ee714cee3c8b25d4
+"Hash: a6779032127bc5f302b0
 Time: Xms
 Built at: Thu Jan 01 1970 <CLR=BOLD>00:00:00</CLR> GMT
   Asset      Size  Chunks             Chunk Names
@@ -591,7 +591,7 @@ Entrypoint main = main.js
 `;
 
 exports[`StatsTestCases should print correct stats for color-enabled 1`] = `
-"Hash: <CLR=BOLD>0b32ee714cee3c8b25d4</CLR>
+"Hash: <CLR=BOLD>a6779032127bc5f302b0</CLR>
 Time: <CLR=BOLD>X</CLR>ms
 Built at: Thu Jan 01 1970 <CLR=BOLD>00:00:00</CLR> GMT
   <CLR=BOLD>Asset</CLR>      <CLR=BOLD>Size</CLR>  <CLR=BOLD>Chunks</CLR>  <CLR=39,BOLD><CLR=22>           <CLR=39,BOLD><CLR=22><CLR=BOLD>Chunk Names</CLR>
@@ -601,7 +601,7 @@ Entrypoint <CLR=BOLD>main</CLR> = <CLR=32,BOLD>main.js</CLR>
 `;
 
 exports[`StatsTestCases should print correct stats for color-enabled-custom 1`] = `
-"Hash: <CLR=BOLD>0b32ee714cee3c8b25d4</CLR>
+"Hash: <CLR=BOLD>a6779032127bc5f302b0</CLR>
 Time: <CLR=BOLD>X</CLR>ms
 Built at: Thu Jan 01 1970 <CLR=BOLD>00:00:00</CLR> GMT
   <CLR=BOLD>Asset</CLR>      <CLR=BOLD>Size</CLR>  <CLR=BOLD>Chunks</CLR>  <CLR=39,BOLD><CLR=22>           <CLR=39,BOLD><CLR=22><CLR=BOLD>Chunk Names</CLR>
@@ -611,7 +611,7 @@ Entrypoint <CLR=BOLD>main</CLR> = <CLR=32>main.js</CLR>
 `;
 
 exports[`StatsTestCases should print correct stats for commons-chunk-min-size-0 1`] = `
-"Hash: cad25b99a073374722a7
+"Hash: fe1218333b65ce9f8634
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
               Asset       Size  Chunks             Chunk Names
@@ -628,7 +628,7 @@ Entrypoint entry-1 = vendor-1~entry-1.js entry-1.js
 `;
 
 exports[`StatsTestCases should print correct stats for commons-chunk-min-size-Infinity 1`] = `
-"Hash: c176225f44e51c7a39a4
+"Hash: 795be68665d680b959bb
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
       Asset       Size  Chunks             Chunk Names
@@ -645,28 +645,28 @@ Entrypoint entry-1 = vendor-1.js entry-1.js
 `;
 
 exports[`StatsTestCases should print correct stats for commons-plugin-issue-4980 1`] = `
-"Hash: 1c62a4c91035f66150df2425703c4fe7d61799b3
+"Hash: 3da37f8a7e9d647c86531c172aabb881b93ba6be
 Child
-    Hash: 1c62a4c91035f66150df
+    Hash: 3da37f8a7e9d647c8653
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
                              Asset       Size  Chunks             Chunk Names
                             app.js    5.9 KiB       0  [emitted]  app
-    vendor.c0e73bece4137a7015c2.js  619 bytes       1  [emitted]  vendor
+    vendor.6a3bdffda9f0de672978.js  619 bytes       1  [emitted]  vendor
-    Entrypoint app = vendor.c0e73bece4137a7015c2.js app.js
+    Entrypoint app = vendor.6a3bdffda9f0de672978.js app.js
     [./constants.js] 87 bytes {1} [built]
     [./entry-1.js] ./entry-1.js + 2 modules 190 bytes {0} [built]
         | ./entry-1.js 67 bytes [built]
         | ./submodule-a.js 59 bytes [built]
         | ./submodule-b.js 59 bytes [built]
 Child
-    Hash: 2425703c4fe7d61799b3
+    Hash: 1c172aabb881b93ba6be
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
                              Asset       Size  Chunks             Chunk Names
                             app.js   5.92 KiB       0  [emitted]  app
-    vendor.c0e73bece4137a7015c2.js  619 bytes       1  [emitted]  vendor
+    vendor.6a3bdffda9f0de672978.js  619 bytes       1  [emitted]  vendor
-    Entrypoint app = vendor.c0e73bece4137a7015c2.js app.js
+    Entrypoint app = vendor.6a3bdffda9f0de672978.js app.js
     [./constants.js] 87 bytes {1} [built]
     [./entry-2.js] ./entry-2.js + 2 modules 197 bytes {0} [built]
         | ./entry-2.js 67 bytes [built]
@@ -693,9 +693,9 @@ exports[`StatsTestCases should print correct stats for concat-and-sideeffects 1`
 `;
 
 exports[`StatsTestCases should print correct stats for define-plugin 1`] = `
-"Hash: 189d0d15eb46be80d1f9eaead63561588b554cc6
+"Hash: e7d8a913568c3242d80b39c3fe9ff20894943d05
 Child
-    Hash: 189d0d15eb46be80d1f9
+    Hash: e7d8a913568c3242d80b
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
       Asset      Size  Chunks             Chunk Names
@@ -703,7 +703,7 @@ Child
     Entrypoint main = main.js
     [0] ./index.js 24 bytes {0} [built]
 Child
-    Hash: eaead63561588b554cc6
+    Hash: 39c3fe9ff20894943d05
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
       Asset      Size  Chunks             Chunk Names
@@ -713,7 +713,7 @@ Child
 `;
 
 exports[`StatsTestCases should print correct stats for exclude-with-loader 1`] = `
-"Hash: 8b3d74c47fe62d34ee43
+"Hash: 0bfe3f933dc07ac74c68
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
     Asset      Size  Chunks             Chunk Names
@@ -726,7 +726,7 @@ Entrypoint main = bundle.js
 `;
 
 exports[`StatsTestCases should print correct stats for external 1`] = `
-"Hash: 3386bd94ba1fc3ae7f29
+"Hash: c978d13c314f28182daa
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
   Asset      Size  Chunks             Chunk Names
@@ -737,9 +737,9 @@ Entrypoint main = main.js
 `;
 
 exports[`StatsTestCases should print correct stats for filter-warnings 1`] = `
-"Hash: abbea59d067e262318adabbea59d067e262318adabbea59d067e262318adabbea59d067e262318adabbea59d067e262318adabbea59d067e262318adabbea59d067e262318adabbea59d067e262318adabbea59d067e262318adabbea59d067e262318adabbea59d067e262318adabbea59d067e262318adabbea59d067e262318ad
+"Hash: 894b7278b69dd6b1969d894b7278b69dd6b1969d894b7278b69dd6b1969d894b7278b69dd6b1969d894b7278b69dd6b1969d894b7278b69dd6b1969d894b7278b69dd6b1969d894b7278b69dd6b1969d894b7278b69dd6b1969d894b7278b69dd6b1969d894b7278b69dd6b1969d894b7278b69dd6b1969d894b7278b69dd6b1969d
 Child
-    Hash: abbea59d067e262318ad
+    Hash: 894b7278b69dd6b1969d
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
         Asset      Size  Chunks             Chunk Names
@@ -759,49 +759,49 @@ Child
     Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0]
     Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0]
 Child
-    Hash: abbea59d067e262318ad
+    Hash: 894b7278b69dd6b1969d
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
         Asset      Size  Chunks             Chunk Names
     bundle.js  2.19 KiB       0  [emitted]  main
     Entrypoint main = bundle.js
 Child
-    Hash: abbea59d067e262318ad
+    Hash: 894b7278b69dd6b1969d
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
         Asset      Size  Chunks             Chunk Names
     bundle.js  2.19 KiB       0  [emitted]  main
     Entrypoint main = bundle.js
 Child
-    Hash: abbea59d067e262318ad
+    Hash: 894b7278b69dd6b1969d
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
         Asset      Size  Chunks             Chunk Names
     bundle.js  2.19 KiB       0  [emitted]  main
     Entrypoint main = bundle.js
 Child
-    Hash: abbea59d067e262318ad
+    Hash: 894b7278b69dd6b1969d
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
         Asset      Size  Chunks             Chunk Names
     bundle.js  2.19 KiB       0  [emitted]  main
     Entrypoint main = bundle.js
 Child
-    Hash: abbea59d067e262318ad
+    Hash: 894b7278b69dd6b1969d
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
         Asset      Size  Chunks             Chunk Names
     bundle.js  2.19 KiB       0  [emitted]  main
     Entrypoint main = bundle.js
 Child
-    Hash: abbea59d067e262318ad
+    Hash: 894b7278b69dd6b1969d
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
         Asset      Size  Chunks             Chunk Names
     bundle.js  2.19 KiB       0  [emitted]  main
     Entrypoint main = bundle.js
 Child
-    Hash: abbea59d067e262318ad
+    Hash: 894b7278b69dd6b1969d
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
         Asset      Size  Chunks             Chunk Names
@@ -821,7 +821,7 @@ Child
     Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0]
     Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0]
 Child
-    Hash: abbea59d067e262318ad
+    Hash: 894b7278b69dd6b1969d
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
         Asset      Size  Chunks             Chunk Names
@@ -841,7 +841,7 @@ Child
     Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0]
     Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0]
 Child
-    Hash: abbea59d067e262318ad
+    Hash: 894b7278b69dd6b1969d
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
         Asset      Size  Chunks             Chunk Names
@@ -861,7 +861,7 @@ Child
     Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0]
     Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0]
 Child
-    Hash: abbea59d067e262318ad
+    Hash: 894b7278b69dd6b1969d
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
         Asset      Size  Chunks             Chunk Names
@@ -881,7 +881,7 @@ Child
     Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0]
     Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0]
 Child
-    Hash: abbea59d067e262318ad
+    Hash: 894b7278b69dd6b1969d
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
         Asset      Size  Chunks             Chunk Names
@@ -901,7 +901,7 @@ Child
     Dropping unused function someRemoteUnUsedFunction4 [./a.js:6,0]
     Dropping unused function someRemoteUnUsedFunction5 [./a.js:7,0]
 Child
-    Hash: abbea59d067e262318ad
+    Hash: 894b7278b69dd6b1969d
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
         Asset      Size  Chunks             Chunk Names
@@ -978,7 +978,7 @@ chunk    {5} b.js (b) 179 bytes <{2}> >{1}< [rendered]
 `;
 
 exports[`StatsTestCases should print correct stats for import-context-filter 1`] = `
-"Hash: 736289137c8313a6d802
+"Hash: e08ae3f7bf8b895ac342
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
    Asset       Size  Chunks             Chunk Names
@@ -995,7 +995,7 @@ Entrypoint entry = entry.js
 `;
 
 exports[`StatsTestCases should print correct stats for import-weak 1`] = `
-"Hash: 1c55fc2d238369c62239
+"Hash: 59a0e9590a7c1754c76d
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
    Asset       Size  Chunks             Chunk Names
@@ -1008,9 +1008,9 @@ Entrypoint entry = entry.js
 `;
 
 exports[`StatsTestCases should print correct stats for limit-chunk-count-plugin 1`] = `
-"Hash: 89bb5076b735d47082582924d303eb8bcffb1c785cc24ae5dbdd7c6bafb935e3a49d38d6f5cc7854
+"Hash: fbf4374d5e6774f1f5763193fa6cb748ec53112f17662c5c606c0e127c765794818a8074e5c164c7
 Child 1 chunks:
-    Hash: 89bb5076b735d4708258
+    Hash: fbf4374d5e6774f1f576
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
         Asset      Size  Chunks             Chunk Names
@@ -1024,7 +1024,7 @@ Child 1 chunks:
      [4] ./d.js 22 bytes {0} [built]
      [5] ./e.js 22 bytes {0} [built]
 Child 2 chunks:
-    Hash: 2924d303eb8bcffb1c78
+    Hash: 3193fa6cb748ec53112f
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
           Asset      Size  Chunks             Chunk Names
@@ -1040,7 +1040,7 @@ Child 2 chunks:
     chunk    {1} bundle.js (main) 73 bytes >{0}< [entry] [rendered]
      [5] ./index.js 73 bytes {1} [built]
 Child 3 chunks:
-    Hash: 5cc24ae5dbdd7c6bafb9
+    Hash: 17662c5c606c0e127c76
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
           Asset       Size  Chunks             Chunk Names
@@ -1058,7 +1058,7 @@ Child 3 chunks:
     chunk    {2} bundle.js (main) 73 bytes >{0}< >{1}< [entry] [rendered]
      [5] ./index.js 73 bytes {2} [built]
 Child 4 chunks:
-    Hash: 35e3a49d38d6f5cc7854
+    Hash: 5794818a8074e5c164c7
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
           Asset       Size  Chunks             Chunk Names
@@ -1080,7 +1080,7 @@ Child 4 chunks:
 `;
 
 exports[`StatsTestCases should print correct stats for max-modules 1`] = `
-"Hash: c5cf5ab0cc0a404f1acf
+"Hash: 75aa9fbfda2cb79419d8
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
   Asset      Size  Chunks             Chunk Names
@@ -1110,7 +1110,7 @@ Entrypoint main = main.js
 `;
 
 exports[`StatsTestCases should print correct stats for max-modules-default 1`] = `
-"Hash: c5cf5ab0cc0a404f1acf
+"Hash: 75aa9fbfda2cb79419d8
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
   Asset      Size  Chunks             Chunk Names
@@ -1135,7 +1135,7 @@ Entrypoint main = main.js
 `;
 
 exports[`StatsTestCases should print correct stats for module-assets 1`] = `
-"Hash: 021e4419d6957e08eedd
+"Hash: 50b073bf8c481825a488
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
 Entrypoint main = main.js
@@ -1317,7 +1317,7 @@ Child
 `;
 
 exports[`StatsTestCases should print correct stats for named-chunks-plugin 1`] = `
-"Hash: 5df55d54223f36cc303b
+"Hash: bda0a8a2c2ad3a4d41bd
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
     Asset       Size  Chunks             Chunk Names
@@ -1331,7 +1331,7 @@ Entrypoint entry = vendor.js entry.js
 `;
 
 exports[`StatsTestCases should print correct stats for named-chunks-plugin-async 1`] = `
-"Hash: f7d13fc86234627ae268
+"Hash: b07ae41580240259728a
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
                      Asset       Size                   Chunks             Chunk Names
@@ -1345,7 +1345,7 @@ Entrypoint entry = entry.js
 `;
 
 exports[`StatsTestCases should print correct stats for no-emit-on-errors-plugin-with-child-error 1`] = `
-"Hash: 550499db0a071b393308
+"Hash: 30e651c30e081df7d6fb
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
     Asset      Size  Chunks  Chunk Names
@@ -1367,7 +1367,7 @@ Child child:
 `;
 
 exports[`StatsTestCases should print correct stats for optimize-chunks 1`] = `
-"Hash: b643225c9d2e70212495
+"Hash: 72023c7499b4b25526da
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
             Asset       Size  Chunks             Chunk Names
@@ -1438,9 +1438,9 @@ You may need an appropriate loader to handle this file type.
 `;
 
 exports[`StatsTestCases should print correct stats for performance-different-mode-and-target 1`] = `
-"Hash: df3a0090d24670ebd17d7094466a296a7ae4ae823f59070ac8deb95011d223ef01d5f7db6f7b0912f47482563c8b6b9dc4955fdf2e3a0c7c308a998f9bab5b59aa119495c443
+"Hash: 1600ea0c15704981d2afb76a49f4a3d86abe6cece7a6e8bbef9e93fb375f94f7ccc27c401fad35731592704355cc413e2afcf8bdd2c0c7cffce662a97f3b443bb4363f92335d
 Child
-    Hash: df3a0090d24670ebd17d
+    Hash: 1600ea0c15704981d2af
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
                  Asset     Size  Chunks                    Chunk Names
@@ -1463,7 +1463,7 @@ Child
     You can limit the size of your bundles by using import() or require.ensure to lazy load some parts of your application.
     For more info visit https://webpack.js.org/guides/code-splitting/
 Child
-    Hash: 7094466a296a7ae4ae82
+    Hash: b76a49f4a3d86abe6cec
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
                        Asset     Size  Chunks                    Chunk Names
@@ -1486,7 +1486,7 @@ Child
     You can limit the size of your bundles by using import() or require.ensure to lazy load some parts of your application.
     For more info visit https://webpack.js.org/guides/code-splitting/
 Child
-    Hash: 3f59070ac8deb95011d2
+    Hash: e7a6e8bbef9e93fb375f
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
                      Asset     Size  Chunks             Chunk Names
@@ -1494,7 +1494,7 @@ Child
     Entrypoint main = no-warning.pro-node.js
     [0] ./index.js 293 KiB {0} [built]
 Child
-    Hash: 23ef01d5f7db6f7b0912
+    Hash: 94f7ccc27c401fad3573
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
                     Asset      Size  Chunks             Chunk Names
@@ -1502,7 +1502,7 @@ Child
     Entrypoint main = no-warning.dev-web.js
     [./index.js] 293 KiB {main} [built]
 Child
-    Hash: f47482563c8b6b9dc495
+    Hash: 1592704355cc413e2afc
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
                      Asset      Size  Chunks             Chunk Names
@@ -1510,7 +1510,7 @@ Child
     Entrypoint main = no-warning.dev-node.js
     [./index.js] 293 KiB {main} [built]
 Child
-    Hash: 5fdf2e3a0c7c308a998f
+    Hash: f8bdd2c0c7cffce662a9
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
                                    Asset      Size  Chunks                    Chunk Names
@@ -1518,7 +1518,7 @@ Child
     Entrypoint main [big] = no-warning.dev-web-with-limit-set.js
     [./index.js] 293 KiB {main} [built]
 Child
-    Hash: 9bab5b59aa119495c443
+    Hash: 7f3b443bb4363f92335d
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
                                  Asset     Size  Chunks                    Chunk Names
@@ -1719,7 +1719,7 @@ chunk    {6} inner2.js (inner2) 0 bytes <{0}> [rendered]"
 `;
 
 exports[`StatsTestCases should print correct stats for preset-detailed 1`] = `
-"Hash: 5a6d9c01f46a5330eee6
+"Hash: 633de649e1fd60300acb
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
   Asset       Size  Chunks             Chunk Names
@@ -1778,7 +1778,7 @@ exports[`StatsTestCases should print correct stats for preset-none-array 1`] = `
 exports[`StatsTestCases should print correct stats for preset-none-error 1`] = `""`;
 
 exports[`StatsTestCases should print correct stats for preset-normal 1`] = `
-"Hash: 5a6d9c01f46a5330eee6
+"Hash: 633de649e1fd60300acb
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
   Asset       Size  Chunks             Chunk Names
@@ -1856,7 +1856,7 @@ Entrypoints:
 `;
 
 exports[`StatsTestCases should print correct stats for preset-verbose 1`] = `
-"Hash: 5a6d9c01f46a5330eee6
+"Hash: 633de649e1fd60300acb
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
   Asset       Size  Chunks             Chunk Names
@@ -1900,7 +1900,7 @@ chunk    {3} 3.js 44 bytes <{1}> [rendered]
 `;
 
 exports[`StatsTestCases should print correct stats for resolve-plugin-context 1`] = `
-"Hash: 47eae06ebcb26f6b883a
+"Hash: b03156e9d530e0fdde16
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
     Asset      Size  Chunks             Chunk Names
@@ -1914,7 +1914,7 @@ Entrypoint main = bundle.js
 `;
 
 exports[`StatsTestCases should print correct stats for reverse-sort-modules 1`] = `
-"Hash: c5cf5ab0cc0a404f1acf
+"Hash: 75aa9fbfda2cb79419d8
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
   Asset      Size  Chunks             Chunk Names
@@ -1979,7 +1979,7 @@ Entrypoint e2 = runtime.js e2.js"
 `;
 
 exports[`StatsTestCases should print correct stats for scope-hoisting-bailouts 1`] = `
-"Hash: ee60eae5100628922748
+"Hash: eca97dadc365a5ea9495
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
 Entrypoint index = index.js
@@ -2011,9 +2011,9 @@ Entrypoint entry = entry.js
 `;
 
 exports[`StatsTestCases should print correct stats for scope-hoisting-multi 1`] = `
-"Hash: 33704ebeb245a82a7e824bf53c5eb877060bfd4d
+"Hash: 649bc82f0ddfa78bf8265487d50fbccae514909d
 Child
-    Hash: 33704ebeb245a82a7e82
+    Hash: 649bc82f0ddfa78bf826
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
     Entrypoint first = vendor.js first.js
@@ -2030,7 +2030,7 @@ Child
      [9] ./module_first.js 31 bytes {4} [built]
     [10] ./second.js 177 bytes {5} [built]
 Child
-    Hash: 4bf53c5eb877060bfd4d
+    Hash: 5487d50fbccae514909d
     Time: Xms
     Built at: Thu Jan 01 1970 00:00:00 GMT
     Entrypoint first = vendor.js first.js
@@ -2058,7 +2058,7 @@ Child
 `;
 
 exports[`StatsTestCases should print correct stats for simple 1`] = `
-"Hash: 18342b523b0aca4784a6
+"Hash: 85e288d6fa103903dde9
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
     Asset      Size  Chunks             Chunk Names
@@ -2068,7 +2068,7 @@ Entrypoint main = bundle.js
 `;
 
 exports[`StatsTestCases should print correct stats for simple-more-info 1`] = `
-"Hash: ee367da3e170c28a39bf
+"Hash: f252a9e1a2892c292e8e
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
     Asset      Size  Chunks             Chunk Names
@@ -2574,7 +2574,7 @@ chunk    {4} default/main.js (main) 147 bytes >{0}< >{1}< >{2}< >{3}< [entry] [r
 `;
 
 exports[`StatsTestCases should print correct stats for tree-shaking 1`] = `
-"Hash: 6877ac726b04eb5d7985
+"Hash: 268985187bb6f35a0709
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
     Asset      Size  Chunks             Chunk Names
@@ -2611,7 +2611,7 @@ Entrypoint main = bundle.js
 `;
 
 exports[`StatsTestCases should print correct stats for warnings-uglifyjs 1`] = `
-"Hash: 5f08c421d55ae2ad3d0e
+"Hash: c9585261f508c0a85e1b
 Time: Xms
 Built at: Thu Jan 01 1970 00:00:00 GMT
     Asset      Size  Chunks             Chunk Names