Move check into function

Author: weswigham

src/compiler/emitter.ts

@@ -170,6 +170,7 @@ import {
     getTypeNode,
     guessIndentation,
     HasLocals,
+    hasProperty,
     hasRecordedExternalHelpers,
     HeritageClause,
     Identifier,
@@ -188,6 +189,7 @@ import {
     InferTypeNode,
     InterfaceDeclaration,
     InternalEmitFlags,
+    internalOptionDeclarations,
     IntersectionTypeNode,
     isAccessExpression,
     isArray,
@@ -477,6 +479,7 @@ export function forEachEmittedFile<T>(
 }
 
 export function getTsBuildInfoEmitOutputFilePath(options: CompilerOptions) {
+    if (some(internalOptionDeclarations, d => hasProperty(options, d.name))) return undefined; // disable buildinfo if an internal option is set
     const configFile = options.configFilePath;
     if (!isIncrementalCompilation(options)) return undefined;
     if (options.tsBuildInfoFile) return options.tsBuildInfoFile;

src/compiler/program.ts

@@ -171,7 +171,6 @@ import {
     ImportOrExportSpecifier,
     importSyntaxAffectsModuleResolution,
     InternalEmitFlags,
-    internalOptionDeclarations,
     inverseJsxOptionMap,
     isAmbientModule,
     isAnyImportOrReExport,
@@ -4806,7 +4805,7 @@ export function createProgram(rootNamesOrOptions: readonly string[] | CreateProg
     }
 
     function verifyProjectReferences() {
-        const buildInfoPath = !some(internalOptionDeclarations, d => hasProperty(options, d.name)) ? getTsBuildInfoEmitOutputFilePath(options) : undefined;
+        const buildInfoPath = !options.suppressOutputPathCheck ? getTsBuildInfoEmitOutputFilePath(options) : undefined;
         forEachProjectReference(projectReferences, resolvedProjectReferences, (resolvedRef, parent, index) => {
             const ref = (parent ? parent.commandLine.projectReferences : projectReferences)![index];
             const parentFile = parent && parent.sourceFile as JsonSourceFile;