From a58fdf2b35f33fd7bfb29b65eafd43e920d1ab8c Mon Sep 17 00:00:00 2001
From: Sheetal Nandi <shkamat@microsoft.com>
Date: Wed, 1 May 2019 10:14:11 -0700
Subject: [PATCH] Include only files that can be emitted into the source file
 directory check for composite projects Fixes #31181

---
 src/compiler/program.ts                        |  6 ++----
 ...mpositeWithNodeModulesSourceFile.errors.txt | 18 ------------------
 2 files changed, 2 insertions(+), 22 deletions(-)
 delete mode 100644 tests/baselines/reference/compositeWithNodeModulesSourceFile.errors.txt

diff --git a/src/compiler/program.ts b/src/compiler/program.ts
index 7e01e56f0693d..6f7ffc2c3a972 100644
--- a/src/compiler/program.ts
+++ b/src/compiler/program.ts
@@ -2768,10 +2768,8 @@ namespace ts {
             if (options.composite) {
                 const rootPaths = rootNames.map(toPath);
                 for (const file of files) {
-                    // Ignore declaration files
-                    if (file.isDeclarationFile) continue;
-                    // Ignore json file thats from project reference
-                    if (isJsonSourceFile(file) && getResolvedProjectReferenceToRedirect(file.fileName)) continue;
+                    // Ignore file that is not emitted
+                    if (!sourceFileMayBeEmitted(file, options, isSourceFileFromExternalLibrary, getResolvedProjectReferenceToRedirect)) continue;
                     if (rootPaths.indexOf(file.path) === -1) {
                         programDiagnostics.add(createCompilerDiagnostic(Diagnostics.File_0_is_not_in_project_file_list_Projects_must_list_all_files_or_use_an_include_pattern, file.fileName));
                     }
diff --git a/tests/baselines/reference/compositeWithNodeModulesSourceFile.errors.txt b/tests/baselines/reference/compositeWithNodeModulesSourceFile.errors.txt
deleted file mode 100644
index be5aebfd5bcd1..0000000000000
--- a/tests/baselines/reference/compositeWithNodeModulesSourceFile.errors.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-error TS6307: File '/foo/node_modules/myModule/index.ts' is not in project file list. Projects must list all files or use an 'include' pattern.
-
-
-!!! error TS6307: File '/foo/node_modules/myModule/index.ts' is not in project file list. Projects must list all files or use an 'include' pattern.
-==== /foo/tsconfig.json (0 errors) ====
-    {
-        "compilerOptions": { "composite": true },
-        "exclude": [ "node_modules" ]
-    }
-    
-==== /foo/test.ts (0 errors) ====
-    import myModule = require("myModule");
-    new myModule.c();
-    
-    
-==== /foo/node_modules/myModule/index.ts (0 errors) ====
-    export class c { }
-    
\ No newline at end of file