diff --git a/src/compiler/builder.ts b/src/compiler/builder.ts
index 60feb4bd584a9..c14acb32f4a08 100644
--- a/src/compiler/builder.ts
+++ b/src/compiler/builder.ts
@@ -438,8 +438,23 @@ namespace ts {
                     removeSemanticDiagnosticsOf(state, f.resolvedPath)
                 );
             }
+            // When a change affects the global scope, all files are considered to be affected without updating their signature
+            // That means when affected file is handled, its signature can be out of date
+            // To avoid this, ensure that we update the signature for any affected file in this scenario.
+            BuilderState.updateShapeSignature(
+                state,
+                Debug.checkDefined(state.program),
+                affectedFile,
+                Debug.checkDefined(state.currentAffectedFilesSignatures),
+                cancellationToken,
+                computeHash,
+                state.currentAffectedFilesExportedModulesMap
+            );
             return;
         }
+        else {
+            Debug.assert(state.hasCalledUpdateShapeSignature.has(affectedFile.resolvedPath) || state.currentAffectedFilesSignatures?.has(affectedFile.resolvedPath), `Signature not updated for affected file: ${affectedFile.fileName}`);
+        }
 
         if (!state.compilerOptions.assumeChangesOnlyAffectDirectDependencies) {
             forEachReferencingModulesOfExportOfAffectedFile(state, affectedFile, (state, path) => handleDtsMayChangeOf(state, path, cancellationToken, computeHash));
diff --git a/src/testRunner/unittests/tsc/incremental.ts b/src/testRunner/unittests/tsc/incremental.ts
index bc728cd32aa2d..d1acc0417b69d 100644
--- a/src/testRunner/unittests/tsc/incremental.ts
+++ b/src/testRunner/unittests/tsc/incremental.ts
@@ -236,6 +236,58 @@ const a: string = 10;`, "utf-8"),
             }
         });
 
+        verifyTscSerializedIncrementalEdits({
+            scenario: "incremental",
+            subScenario: `when global file is added, the signatures are updated`,
+            fs: () => loadProjectFromFiles({
+                "/src/project/src/main.ts": Utils.dedent`
+                    /// <reference path="./filePresent.ts"/>
+                    /// <reference path="./fileNotFound.ts"/>
+                    function main() { }
+                `,
+                "/src/project/src/anotherFileWithSameReferenes.ts": Utils.dedent`
+                    /// <reference path="./filePresent.ts"/>
+                    /// <reference path="./fileNotFound.ts"/>
+                    function anotherFileWithSameReferenes() { }
+                `,
+                "/src/project/src/filePresent.ts": `function something() { return 10; }`,
+                "/src/project/tsconfig.json": JSON.stringify({
+                    compilerOptions: { composite: true, },
+                    include: ["src/**/*.ts"]
+                }),
+            }),
+            commandLineArgs: ["--p", "src/project"],
+            incrementalScenarios: [
+                noChangeRun,
+                {
+                    subScenario: "Modify main file",
+                    buildKind: BuildKind.IncrementalDtsChange,
+                    modifyFs: fs => appendText(fs, `/src/project/src/main.ts`, `something();`),
+                },
+                {
+                    subScenario: "Add new file and update main file",
+                    buildKind: BuildKind.IncrementalDtsChange,
+                    modifyFs: fs => {
+                        fs.writeFileSync(`/src/project/src/newFile.ts`, "function foo() { return 20; }");
+                        prependText(fs, `/src/project/src/main.ts`, `/// <reference path="./newFile.ts"/>
+`);
+                        appendText(fs, `/src/project/src/main.ts`, `foo();`);
+                    },
+                },
+                {
+                    subScenario: "Write file that could not be resolved",
+                    buildKind: BuildKind.IncrementalDtsChange,
+                    modifyFs: fs => fs.writeFileSync(`/src/project/src/fileNotFound.ts`, "function something2() { return 20; }"),
+                },
+                {
+                    subScenario: "Modify main file",
+                    buildKind: BuildKind.IncrementalDtsChange,
+                    modifyFs: fs => appendText(fs, `/src/project/src/main.ts`, `something();`),
+                },
+            ],
+            baselinePrograms: true,
+        });
+
         const jsxLibraryContent = `
 export {};
 declare global {
diff --git a/tests/baselines/reference/tsc/incremental/initial-build/when-global-file-is-added,-the-signatures-are-updated.js b/tests/baselines/reference/tsc/incremental/initial-build/when-global-file-is-added,-the-signatures-are-updated.js
new file mode 100644
index 0000000000000..7ab4035cf2d5e
--- /dev/null
+++ b/tests/baselines/reference/tsc/incremental/initial-build/when-global-file-is-added,-the-signatures-are-updated.js
@@ -0,0 +1,662 @@
+Input::
+//// [/lib/lib.d.ts]
+/// <reference no-default-lib="true"/>
+interface Boolean {}
+interface Function {}
+interface CallableFunction {}
+interface NewableFunction {}
+interface IArguments {}
+interface Number { toExponential: any; }
+interface Object {}
+interface RegExp {}
+interface String { charAt: any; }
+interface Array<T> { length: number; [n: number]: T; }
+interface ReadonlyArray<T> {}
+declare const console: { log(msg: any): void; };
+
+//// [/src/project/src/anotherFileWithSameReferenes.ts]
+/// <reference path="./filePresent.ts"/>
+/// <reference path="./fileNotFound.ts"/>
+function anotherFileWithSameReferenes() { }
+
+
+//// [/src/project/src/filePresent.ts]
+function something() { return 10; }
+
+//// [/src/project/src/main.ts]
+/// <reference path="./filePresent.ts"/>
+/// <reference path="./fileNotFound.ts"/>
+function main() { }
+
+
+//// [/src/project/tsconfig.json]
+{"compilerOptions":{"composite":true},"include":["src/**/*.ts"]}
+
+
+
+Output::
+/lib/tsc --p src/project
+src/project/src/anotherFileWithSameReferenes.ts:2:22 - error TS6053: File '/src/project/src/fileNotFound.ts' not found.
+
+2 /// <reference path="./fileNotFound.ts"/>
+                       ~~~~~~~~~~~~~~~~~
+
+src/project/src/main.ts:2:22 - error TS6053: File '/src/project/src/fileNotFound.ts' not found.
+
+2 /// <reference path="./fileNotFound.ts"/>
+                       ~~~~~~~~~~~~~~~~~
+
+
+Found 2 errors.
+
+exitCode:: ExitStatus.DiagnosticsPresent_OutputsGenerated
+Program root files: ["/src/project/src/anotherFileWithSameReferenes.ts","/src/project/src/filePresent.ts","/src/project/src/main.ts"]
+Program options: {"composite":true,"project":"/src/project","configFilePath":"/src/project/tsconfig.json"}
+Program structureReused: Not
+Program files::
+/lib/lib.d.ts
+/src/project/src/filePresent.ts
+/src/project/src/anotherFileWithSameReferenes.ts
+/src/project/src/main.ts
+
+Semantic diagnostics in builder refreshed for::
+/lib/lib.d.ts
+/src/project/src/filePresent.ts
+/src/project/src/anotherFileWithSameReferenes.ts
+/src/project/src/main.ts
+
+
+//// [/src/project/src/anotherFileWithSameReferenes.d.ts]
+/// <reference path="filePresent.d.ts" />
+declare function anotherFileWithSameReferenes(): void;
+
+
+//// [/src/project/src/anotherFileWithSameReferenes.js]
+/// <reference path="./filePresent.ts"/>
+/// <reference path="./fileNotFound.ts"/>
+function anotherFileWithSameReferenes() { }
+
+
+//// [/src/project/src/filePresent.d.ts]
+declare function something(): number;
+
+
+//// [/src/project/src/filePresent.js]
+function something() { return 10; }
+
+
+//// [/src/project/src/main.d.ts]
+/// <reference path="filePresent.d.ts" />
+declare function main(): void;
+
+
+//// [/src/project/src/main.js]
+/// <reference path="./filePresent.ts"/>
+/// <reference path="./fileNotFound.ts"/>
+function main() { }
+
+
+//// [/src/project/tsconfig.tsbuildinfo]
+{"program":{"fileNames":["../../lib/lib.d.ts","./src/filepresent.ts","./src/anotherfilewithsamereferenes.ts","./src/main.ts","./src/filenotfound.ts"],"fileInfos":[{"version":"3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };","signature":"3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };","affectsGlobalScope":true},{"version":"-12346563362-function something() { return 10; }","signature":"-2893492081-declare function something(): number;\r\n","affectsGlobalScope":true},{"version":"-28237004260-/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction anotherFileWithSameReferenes() { }\n","signature":"5108835150-/// <reference path=\"filePresent.d.ts\" />\r\ndeclare function anotherFileWithSameReferenes(): void;\r\n","affectsGlobalScope":true},{"version":"-21256825585-/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction main() { }\n","signature":"-7575087679-/// <reference path=\"filePresent.d.ts\" />\r\ndeclare function main(): void;\r\n","affectsGlobalScope":true}],"options":{"composite":true,"project":"./","configFilePath":"./tsconfig.json"},"fileIdsList":[[1,4]],"referencedMap":[[2,0],[3,0]],"exportedModulesMap":[],"semanticDiagnosticsPerFile":[0,2,1,3]},"version":"FakeTSVersion"}
+
+//// [/src/project/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "program": {
+    "fileInfos": {
+      "../../lib/lib.d.ts": {
+        "version": "3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };",
+        "signature": "3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };",
+        "affectsGlobalScope": true
+      },
+      "./src/filepresent.ts": {
+        "version": "-12346563362-function something() { return 10; }",
+        "signature": "-2893492081-declare function something(): number;\r\n",
+        "affectsGlobalScope": true
+      },
+      "./src/anotherfilewithsamereferenes.ts": {
+        "version": "-28237004260-/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction anotherFileWithSameReferenes() { }\n",
+        "signature": "5108835150-/// <reference path=\"filePresent.d.ts\" />\r\ndeclare function anotherFileWithSameReferenes(): void;\r\n",
+        "affectsGlobalScope": true
+      },
+      "./src/main.ts": {
+        "version": "-21256825585-/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction main() { }\n",
+        "signature": "-7575087679-/// <reference path=\"filePresent.d.ts\" />\r\ndeclare function main(): void;\r\n",
+        "affectsGlobalScope": true
+      }
+    },
+    "options": {
+      "composite": true,
+      "project": "./",
+      "configFilePath": "./tsconfig.json"
+    },
+    "referencedMap": {
+      "./src/anotherfilewithsamereferenes.ts": [
+        "./src/filepresent.ts",
+        "./src/filenotfound.ts"
+      ],
+      "./src/main.ts": [
+        "./src/filepresent.ts",
+        "./src/filenotfound.ts"
+      ]
+    },
+    "exportedModulesMap": {},
+    "semanticDiagnosticsPerFile": [
+      "../../lib/lib.d.ts",
+      "./src/anotherfilewithsamereferenes.ts",
+      "./src/filepresent.ts",
+      "./src/main.ts"
+    ]
+  },
+  "version": "FakeTSVersion"
+}
+
+
+
+Change:: no-change-run
+Input::
+
+
+Output::
+/lib/tsc --p src/project
+src/project/src/anotherFileWithSameReferenes.ts:2:22 - error TS6053: File '/src/project/src/fileNotFound.ts' not found.
+
+2 /// <reference path="./fileNotFound.ts"/>
+                       ~~~~~~~~~~~~~~~~~
+
+src/project/src/main.ts:2:22 - error TS6053: File '/src/project/src/fileNotFound.ts' not found.
+
+2 /// <reference path="./fileNotFound.ts"/>
+                       ~~~~~~~~~~~~~~~~~
+
+
+Found 2 errors.
+
+exitCode:: ExitStatus.DiagnosticsPresent_OutputsGenerated
+Program root files: ["/src/project/src/anotherFileWithSameReferenes.ts","/src/project/src/filePresent.ts","/src/project/src/main.ts"]
+Program options: {"composite":true,"project":"/src/project","configFilePath":"/src/project/tsconfig.json"}
+Program structureReused: Not
+Program files::
+/lib/lib.d.ts
+/src/project/src/filePresent.ts
+/src/project/src/anotherFileWithSameReferenes.ts
+/src/project/src/main.ts
+
+Semantic diagnostics in builder refreshed for::
+
+
+
+
+Change:: Modify main file
+Input::
+//// [/src/project/src/main.ts]
+/// <reference path="./filePresent.ts"/>
+/// <reference path="./fileNotFound.ts"/>
+function main() { }
+something();
+
+
+
+Output::
+/lib/tsc --p src/project
+src/project/src/anotherFileWithSameReferenes.ts:2:22 - error TS6053: File '/src/project/src/fileNotFound.ts' not found.
+
+2 /// <reference path="./fileNotFound.ts"/>
+                       ~~~~~~~~~~~~~~~~~
+
+src/project/src/main.ts:2:22 - error TS6053: File '/src/project/src/fileNotFound.ts' not found.
+
+2 /// <reference path="./fileNotFound.ts"/>
+                       ~~~~~~~~~~~~~~~~~
+
+
+Found 2 errors.
+
+exitCode:: ExitStatus.DiagnosticsPresent_OutputsGenerated
+Program root files: ["/src/project/src/anotherFileWithSameReferenes.ts","/src/project/src/filePresent.ts","/src/project/src/main.ts"]
+Program options: {"composite":true,"project":"/src/project","configFilePath":"/src/project/tsconfig.json"}
+Program structureReused: Not
+Program files::
+/lib/lib.d.ts
+/src/project/src/filePresent.ts
+/src/project/src/anotherFileWithSameReferenes.ts
+/src/project/src/main.ts
+
+Semantic diagnostics in builder refreshed for::
+/src/project/src/main.ts
+
+
+//// [/src/project/src/main.d.ts] file written with same contents
+//// [/src/project/src/main.js]
+/// <reference path="./filePresent.ts"/>
+/// <reference path="./fileNotFound.ts"/>
+function main() { }
+something();
+
+
+//// [/src/project/tsconfig.tsbuildinfo]
+{"program":{"fileNames":["../../lib/lib.d.ts","./src/filepresent.ts","./src/anotherfilewithsamereferenes.ts","./src/main.ts","./src/filenotfound.ts"],"fileInfos":[{"version":"3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };","signature":"3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };","affectsGlobalScope":true},{"version":"-12346563362-function something() { return 10; }","signature":"-2893492081-declare function something(): number;\r\n","affectsGlobalScope":true},{"version":"-28237004260-/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction anotherFileWithSameReferenes() { }\n","signature":"5108835150-/// <reference path=\"filePresent.d.ts\" />\r\ndeclare function anotherFileWithSameReferenes(): void;\r\n","affectsGlobalScope":true},{"version":"-24702349751-/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction main() { }\nsomething();","signature":"-7575087679-/// <reference path=\"filePresent.d.ts\" />\r\ndeclare function main(): void;\r\n","affectsGlobalScope":true}],"options":{"composite":true,"project":"./","configFilePath":"./tsconfig.json"},"fileIdsList":[[1,4]],"referencedMap":[[2,0],[3,0]],"exportedModulesMap":[],"semanticDiagnosticsPerFile":[0,2,1,3]},"version":"FakeTSVersion"}
+
+//// [/src/project/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "program": {
+    "fileInfos": {
+      "../../lib/lib.d.ts": {
+        "version": "3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };",
+        "signature": "3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };",
+        "affectsGlobalScope": true
+      },
+      "./src/filepresent.ts": {
+        "version": "-12346563362-function something() { return 10; }",
+        "signature": "-2893492081-declare function something(): number;\r\n",
+        "affectsGlobalScope": true
+      },
+      "./src/anotherfilewithsamereferenes.ts": {
+        "version": "-28237004260-/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction anotherFileWithSameReferenes() { }\n",
+        "signature": "5108835150-/// <reference path=\"filePresent.d.ts\" />\r\ndeclare function anotherFileWithSameReferenes(): void;\r\n",
+        "affectsGlobalScope": true
+      },
+      "./src/main.ts": {
+        "version": "-24702349751-/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction main() { }\nsomething();",
+        "signature": "-7575087679-/// <reference path=\"filePresent.d.ts\" />\r\ndeclare function main(): void;\r\n",
+        "affectsGlobalScope": true
+      }
+    },
+    "options": {
+      "composite": true,
+      "project": "./",
+      "configFilePath": "./tsconfig.json"
+    },
+    "referencedMap": {
+      "./src/anotherfilewithsamereferenes.ts": [
+        "./src/filepresent.ts",
+        "./src/filenotfound.ts"
+      ],
+      "./src/main.ts": [
+        "./src/filepresent.ts",
+        "./src/filenotfound.ts"
+      ]
+    },
+    "exportedModulesMap": {},
+    "semanticDiagnosticsPerFile": [
+      "../../lib/lib.d.ts",
+      "./src/anotherfilewithsamereferenes.ts",
+      "./src/filepresent.ts",
+      "./src/main.ts"
+    ]
+  },
+  "version": "FakeTSVersion"
+}
+
+
+
+Change:: Add new file and update main file
+Input::
+//// [/src/project/src/main.ts]
+/// <reference path="./newFile.ts"/>
+/// <reference path="./filePresent.ts"/>
+/// <reference path="./fileNotFound.ts"/>
+function main() { }
+something();foo();
+
+//// [/src/project/src/newFile.ts]
+function foo() { return 20; }
+
+
+
+Output::
+/lib/tsc --p src/project
+src/project/src/anotherFileWithSameReferenes.ts:2:22 - error TS6053: File '/src/project/src/fileNotFound.ts' not found.
+
+2 /// <reference path="./fileNotFound.ts"/>
+                       ~~~~~~~~~~~~~~~~~
+
+src/project/src/main.ts:3:22 - error TS6053: File '/src/project/src/fileNotFound.ts' not found.
+
+3 /// <reference path="./fileNotFound.ts"/>
+                       ~~~~~~~~~~~~~~~~~
+
+
+Found 2 errors.
+
+exitCode:: ExitStatus.DiagnosticsPresent_OutputsGenerated
+Program root files: ["/src/project/src/anotherFileWithSameReferenes.ts","/src/project/src/filePresent.ts","/src/project/src/main.ts","/src/project/src/newFile.ts"]
+Program options: {"composite":true,"project":"/src/project","configFilePath":"/src/project/tsconfig.json"}
+Program structureReused: Not
+Program files::
+/lib/lib.d.ts
+/src/project/src/filePresent.ts
+/src/project/src/anotherFileWithSameReferenes.ts
+/src/project/src/newFile.ts
+/src/project/src/main.ts
+
+Semantic diagnostics in builder refreshed for::
+/lib/lib.d.ts
+/src/project/src/filePresent.ts
+/src/project/src/anotherFileWithSameReferenes.ts
+/src/project/src/newFile.ts
+/src/project/src/main.ts
+
+
+//// [/src/project/src/anotherFileWithSameReferenes.d.ts] file written with same contents
+//// [/src/project/src/anotherFileWithSameReferenes.js] file written with same contents
+//// [/src/project/src/filePresent.d.ts] file written with same contents
+//// [/src/project/src/filePresent.js] file written with same contents
+//// [/src/project/src/main.d.ts]
+/// <reference path="newFile.d.ts" />
+/// <reference path="filePresent.d.ts" />
+declare function main(): void;
+
+
+//// [/src/project/src/main.js]
+/// <reference path="./newFile.ts"/>
+/// <reference path="./filePresent.ts"/>
+/// <reference path="./fileNotFound.ts"/>
+function main() { }
+something();
+foo();
+
+
+//// [/src/project/src/newFile.d.ts]
+declare function foo(): number;
+
+
+//// [/src/project/src/newFile.js]
+function foo() { return 20; }
+
+
+//// [/src/project/tsconfig.tsbuildinfo]
+{"program":{"fileNames":["../../lib/lib.d.ts","./src/filepresent.ts","./src/anotherfilewithsamereferenes.ts","./src/newfile.ts","./src/main.ts","./src/filenotfound.ts"],"fileInfos":[{"version":"3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };","signature":"3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };","affectsGlobalScope":true},{"version":"-12346563362-function something() { return 10; }","signature":"-2893492081-declare function something(): number;\r\n","affectsGlobalScope":true},{"version":"-28237004260-/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction anotherFileWithSameReferenes() { }\n","signature":"5108835150-/// <reference path=\"filePresent.d.ts\" />\r\ndeclare function anotherFileWithSameReferenes(): void;\r\n","affectsGlobalScope":true},{"version":"5451387573-function foo() { return 20; }","signature":"-94503195-declare function foo(): number;\r\n","affectsGlobalScope":true},{"version":"-5966033614-/// <reference path=\"./newFile.ts\"/>\n/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction main() { }\nsomething();foo();","signature":"23846498620-/// <reference path=\"newFile.d.ts\" />\r\n/// <reference path=\"filePresent.d.ts\" />\r\ndeclare function main(): void;\r\n","affectsGlobalScope":true}],"options":{"composite":true,"project":"./","configFilePath":"./tsconfig.json"},"fileIdsList":[[1,5],[1,3,5]],"referencedMap":[[2,0],[4,1]],"exportedModulesMap":[],"semanticDiagnosticsPerFile":[0,2,1,4,3]},"version":"FakeTSVersion"}
+
+//// [/src/project/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "program": {
+    "fileInfos": {
+      "../../lib/lib.d.ts": {
+        "version": "3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };",
+        "signature": "3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };",
+        "affectsGlobalScope": true
+      },
+      "./src/filepresent.ts": {
+        "version": "-12346563362-function something() { return 10; }",
+        "signature": "-2893492081-declare function something(): number;\r\n",
+        "affectsGlobalScope": true
+      },
+      "./src/anotherfilewithsamereferenes.ts": {
+        "version": "-28237004260-/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction anotherFileWithSameReferenes() { }\n",
+        "signature": "5108835150-/// <reference path=\"filePresent.d.ts\" />\r\ndeclare function anotherFileWithSameReferenes(): void;\r\n",
+        "affectsGlobalScope": true
+      },
+      "./src/newfile.ts": {
+        "version": "5451387573-function foo() { return 20; }",
+        "signature": "-94503195-declare function foo(): number;\r\n",
+        "affectsGlobalScope": true
+      },
+      "./src/main.ts": {
+        "version": "-5966033614-/// <reference path=\"./newFile.ts\"/>\n/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction main() { }\nsomething();foo();",
+        "signature": "23846498620-/// <reference path=\"newFile.d.ts\" />\r\n/// <reference path=\"filePresent.d.ts\" />\r\ndeclare function main(): void;\r\n",
+        "affectsGlobalScope": true
+      }
+    },
+    "options": {
+      "composite": true,
+      "project": "./",
+      "configFilePath": "./tsconfig.json"
+    },
+    "referencedMap": {
+      "./src/anotherfilewithsamereferenes.ts": [
+        "./src/filepresent.ts",
+        "./src/filenotfound.ts"
+      ],
+      "./src/main.ts": [
+        "./src/filepresent.ts",
+        "./src/newfile.ts",
+        "./src/filenotfound.ts"
+      ]
+    },
+    "exportedModulesMap": {},
+    "semanticDiagnosticsPerFile": [
+      "../../lib/lib.d.ts",
+      "./src/anotherfilewithsamereferenes.ts",
+      "./src/filepresent.ts",
+      "./src/main.ts",
+      "./src/newfile.ts"
+    ]
+  },
+  "version": "FakeTSVersion"
+}
+
+
+
+Change:: Write file that could not be resolved
+Input::
+//// [/src/project/src/fileNotFound.ts]
+function something2() { return 20; }
+
+
+
+Output::
+/lib/tsc --p src/project
+exitCode:: ExitStatus.Success
+Program root files: ["/src/project/src/anotherFileWithSameReferenes.ts","/src/project/src/fileNotFound.ts","/src/project/src/filePresent.ts","/src/project/src/main.ts","/src/project/src/newFile.ts"]
+Program options: {"composite":true,"project":"/src/project","configFilePath":"/src/project/tsconfig.json"}
+Program structureReused: Not
+Program files::
+/lib/lib.d.ts
+/src/project/src/filePresent.ts
+/src/project/src/fileNotFound.ts
+/src/project/src/anotherFileWithSameReferenes.ts
+/src/project/src/newFile.ts
+/src/project/src/main.ts
+
+Semantic diagnostics in builder refreshed for::
+/lib/lib.d.ts
+/src/project/src/filePresent.ts
+/src/project/src/fileNotFound.ts
+/src/project/src/anotherFileWithSameReferenes.ts
+/src/project/src/newFile.ts
+/src/project/src/main.ts
+
+
+//// [/src/project/src/anotherFileWithSameReferenes.d.ts]
+/// <reference path="filePresent.d.ts" />
+/// <reference path="fileNotFound.d.ts" />
+declare function anotherFileWithSameReferenes(): void;
+
+
+//// [/src/project/src/anotherFileWithSameReferenes.js] file written with same contents
+//// [/src/project/src/fileNotFound.d.ts]
+declare function something2(): number;
+
+
+//// [/src/project/src/fileNotFound.js]
+function something2() { return 20; }
+
+
+//// [/src/project/src/filePresent.d.ts] file written with same contents
+//// [/src/project/src/filePresent.js] file written with same contents
+//// [/src/project/src/main.d.ts]
+/// <reference path="newFile.d.ts" />
+/// <reference path="filePresent.d.ts" />
+/// <reference path="fileNotFound.d.ts" />
+declare function main(): void;
+
+
+//// [/src/project/src/main.js] file written with same contents
+//// [/src/project/src/newFile.d.ts] file written with same contents
+//// [/src/project/src/newFile.js] file written with same contents
+//// [/src/project/tsconfig.tsbuildinfo]
+{"program":{"fileNames":["../../lib/lib.d.ts","./src/filepresent.ts","./src/filenotfound.ts","./src/anotherfilewithsamereferenes.ts","./src/newfile.ts","./src/main.ts"],"fileInfos":[{"version":"3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };","signature":"3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };","affectsGlobalScope":true},{"version":"-12346563362-function something() { return 10; }","signature":"-2893492081-declare function something(): number;\r\n","affectsGlobalScope":true},{"version":"-9011934479-function something2() { return 20; }","signature":"-11552458975-declare function something2(): number;\r\n","affectsGlobalScope":true},{"version":"-28237004260-/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction anotherFileWithSameReferenes() { }\n","signature":"-13698947860-/// <reference path=\"filePresent.d.ts\" />\r\n/// <reference path=\"fileNotFound.d.ts\" />\r\ndeclare function anotherFileWithSameReferenes(): void;\r\n","affectsGlobalScope":true},{"version":"5451387573-function foo() { return 20; }","signature":"-94503195-declare function foo(): number;\r\n","affectsGlobalScope":true},{"version":"-5966033614-/// <reference path=\"./newFile.ts\"/>\n/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction main() { }\nsomething();foo();","signature":"25064093018-/// <reference path=\"newFile.d.ts\" />\r\n/// <reference path=\"filePresent.d.ts\" />\r\n/// <reference path=\"fileNotFound.d.ts\" />\r\ndeclare function main(): void;\r\n","affectsGlobalScope":true}],"options":{"composite":true,"project":"./","configFilePath":"./tsconfig.json"},"fileIdsList":[[1,2],[1,2,4]],"referencedMap":[[3,0],[5,1]],"exportedModulesMap":[],"semanticDiagnosticsPerFile":[0,3,2,1,5,4]},"version":"FakeTSVersion"}
+
+//// [/src/project/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "program": {
+    "fileInfos": {
+      "../../lib/lib.d.ts": {
+        "version": "3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };",
+        "signature": "3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };",
+        "affectsGlobalScope": true
+      },
+      "./src/filepresent.ts": {
+        "version": "-12346563362-function something() { return 10; }",
+        "signature": "-2893492081-declare function something(): number;\r\n",
+        "affectsGlobalScope": true
+      },
+      "./src/filenotfound.ts": {
+        "version": "-9011934479-function something2() { return 20; }",
+        "signature": "-11552458975-declare function something2(): number;\r\n",
+        "affectsGlobalScope": true
+      },
+      "./src/anotherfilewithsamereferenes.ts": {
+        "version": "-28237004260-/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction anotherFileWithSameReferenes() { }\n",
+        "signature": "-13698947860-/// <reference path=\"filePresent.d.ts\" />\r\n/// <reference path=\"fileNotFound.d.ts\" />\r\ndeclare function anotherFileWithSameReferenes(): void;\r\n",
+        "affectsGlobalScope": true
+      },
+      "./src/newfile.ts": {
+        "version": "5451387573-function foo() { return 20; }",
+        "signature": "-94503195-declare function foo(): number;\r\n",
+        "affectsGlobalScope": true
+      },
+      "./src/main.ts": {
+        "version": "-5966033614-/// <reference path=\"./newFile.ts\"/>\n/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction main() { }\nsomething();foo();",
+        "signature": "25064093018-/// <reference path=\"newFile.d.ts\" />\r\n/// <reference path=\"filePresent.d.ts\" />\r\n/// <reference path=\"fileNotFound.d.ts\" />\r\ndeclare function main(): void;\r\n",
+        "affectsGlobalScope": true
+      }
+    },
+    "options": {
+      "composite": true,
+      "project": "./",
+      "configFilePath": "./tsconfig.json"
+    },
+    "referencedMap": {
+      "./src/anotherfilewithsamereferenes.ts": [
+        "./src/filepresent.ts",
+        "./src/filenotfound.ts"
+      ],
+      "./src/main.ts": [
+        "./src/filepresent.ts",
+        "./src/filenotfound.ts",
+        "./src/newfile.ts"
+      ]
+    },
+    "exportedModulesMap": {},
+    "semanticDiagnosticsPerFile": [
+      "../../lib/lib.d.ts",
+      "./src/anotherfilewithsamereferenes.ts",
+      "./src/filenotfound.ts",
+      "./src/filepresent.ts",
+      "./src/main.ts",
+      "./src/newfile.ts"
+    ]
+  },
+  "version": "FakeTSVersion"
+}
+
+
+
+Change:: Modify main file
+Input::
+//// [/src/project/src/main.ts]
+/// <reference path="./newFile.ts"/>
+/// <reference path="./filePresent.ts"/>
+/// <reference path="./fileNotFound.ts"/>
+function main() { }
+something();foo();something();
+
+
+
+Output::
+/lib/tsc --p src/project
+exitCode:: ExitStatus.Success
+Program root files: ["/src/project/src/anotherFileWithSameReferenes.ts","/src/project/src/fileNotFound.ts","/src/project/src/filePresent.ts","/src/project/src/main.ts","/src/project/src/newFile.ts"]
+Program options: {"composite":true,"project":"/src/project","configFilePath":"/src/project/tsconfig.json"}
+Program structureReused: Not
+Program files::
+/lib/lib.d.ts
+/src/project/src/filePresent.ts
+/src/project/src/fileNotFound.ts
+/src/project/src/anotherFileWithSameReferenes.ts
+/src/project/src/newFile.ts
+/src/project/src/main.ts
+
+Semantic diagnostics in builder refreshed for::
+/src/project/src/main.ts
+
+
+//// [/src/project/src/main.d.ts] file written with same contents
+//// [/src/project/src/main.js]
+/// <reference path="./newFile.ts"/>
+/// <reference path="./filePresent.ts"/>
+/// <reference path="./fileNotFound.ts"/>
+function main() { }
+something();
+foo();
+something();
+
+
+//// [/src/project/tsconfig.tsbuildinfo]
+{"program":{"fileNames":["../../lib/lib.d.ts","./src/filepresent.ts","./src/filenotfound.ts","./src/anotherfilewithsamereferenes.ts","./src/newfile.ts","./src/main.ts"],"fileInfos":[{"version":"3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };","signature":"3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };","affectsGlobalScope":true},{"version":"-12346563362-function something() { return 10; }","signature":"-2893492081-declare function something(): number;\r\n","affectsGlobalScope":true},{"version":"-9011934479-function something2() { return 20; }","signature":"-11552458975-declare function something2(): number;\r\n","affectsGlobalScope":true},{"version":"-28237004260-/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction anotherFileWithSameReferenes() { }\n","signature":"-13698947860-/// <reference path=\"filePresent.d.ts\" />\r\n/// <reference path=\"fileNotFound.d.ts\" />\r\ndeclare function anotherFileWithSameReferenes(): void;\r\n","affectsGlobalScope":true},{"version":"5451387573-function foo() { return 20; }","signature":"-94503195-declare function foo(): number;\r\n","affectsGlobalScope":true},{"version":"54088428-/// <reference path=\"./newFile.ts\"/>\n/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction main() { }\nsomething();foo();something();","signature":"25064093018-/// <reference path=\"newFile.d.ts\" />\r\n/// <reference path=\"filePresent.d.ts\" />\r\n/// <reference path=\"fileNotFound.d.ts\" />\r\ndeclare function main(): void;\r\n","affectsGlobalScope":true}],"options":{"composite":true,"project":"./","configFilePath":"./tsconfig.json"},"fileIdsList":[[1,2],[1,2,4]],"referencedMap":[[3,0],[5,1]],"exportedModulesMap":[],"semanticDiagnosticsPerFile":[0,3,2,1,5,4]},"version":"FakeTSVersion"}
+
+//// [/src/project/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "program": {
+    "fileInfos": {
+      "../../lib/lib.d.ts": {
+        "version": "3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };",
+        "signature": "3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };",
+        "affectsGlobalScope": true
+      },
+      "./src/filepresent.ts": {
+        "version": "-12346563362-function something() { return 10; }",
+        "signature": "-2893492081-declare function something(): number;\r\n",
+        "affectsGlobalScope": true
+      },
+      "./src/filenotfound.ts": {
+        "version": "-9011934479-function something2() { return 20; }",
+        "signature": "-11552458975-declare function something2(): number;\r\n",
+        "affectsGlobalScope": true
+      },
+      "./src/anotherfilewithsamereferenes.ts": {
+        "version": "-28237004260-/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction anotherFileWithSameReferenes() { }\n",
+        "signature": "-13698947860-/// <reference path=\"filePresent.d.ts\" />\r\n/// <reference path=\"fileNotFound.d.ts\" />\r\ndeclare function anotherFileWithSameReferenes(): void;\r\n",
+        "affectsGlobalScope": true
+      },
+      "./src/newfile.ts": {
+        "version": "5451387573-function foo() { return 20; }",
+        "signature": "-94503195-declare function foo(): number;\r\n",
+        "affectsGlobalScope": true
+      },
+      "./src/main.ts": {
+        "version": "54088428-/// <reference path=\"./newFile.ts\"/>\n/// <reference path=\"./filePresent.ts\"/>\n/// <reference path=\"./fileNotFound.ts\"/>\nfunction main() { }\nsomething();foo();something();",
+        "signature": "25064093018-/// <reference path=\"newFile.d.ts\" />\r\n/// <reference path=\"filePresent.d.ts\" />\r\n/// <reference path=\"fileNotFound.d.ts\" />\r\ndeclare function main(): void;\r\n",
+        "affectsGlobalScope": true
+      }
+    },
+    "options": {
+      "composite": true,
+      "project": "./",
+      "configFilePath": "./tsconfig.json"
+    },
+    "referencedMap": {
+      "./src/anotherfilewithsamereferenes.ts": [
+        "./src/filepresent.ts",
+        "./src/filenotfound.ts"
+      ],
+      "./src/main.ts": [
+        "./src/filepresent.ts",
+        "./src/filenotfound.ts",
+        "./src/newfile.ts"
+      ]
+    },
+    "exportedModulesMap": {},
+    "semanticDiagnosticsPerFile": [
+      "../../lib/lib.d.ts",
+      "./src/anotherfilewithsamereferenes.ts",
+      "./src/filenotfound.ts",
+      "./src/filepresent.ts",
+      "./src/main.ts",
+      "./src/newfile.ts"
+    ]
+  },
+  "version": "FakeTSVersion"
+}
+