@@ -25,9 +25,9 @@ interface IOriginalFileInfo {
2525}
2626
2727export class SourceMapper {
28- // Map from .d.ts file path --> ISourceMap if a source map was found, or false if not found
29- private _sourceMapByFilePath : Map < string , ISourceMap | false >
30- = new Map < string , ISourceMap | false > ( ) ;
28+ // Map from .d.ts file path --> ISourceMap if a source map was found, or null if not found
29+ private _sourceMapByFilePath : Map < string , ISourceMap | null >
30+ = new Map < string , ISourceMap | null > ( ) ;
3131
3232 // Cache the FileSystem.exists() result for mapped .ts files
3333 private _originalFileInfoByPath : Map < string , IOriginalFileInfo > = new Map < string , IOriginalFileInfo > ( ) ;
@@ -46,7 +46,7 @@ export class SourceMapper {
4646 throw new InternalError ( 'The referenced path was not found: ' + options . sourceFilePath ) ;
4747 }
4848
49- let sourceMap : ISourceMap | false | undefined = this . _sourceMapByFilePath . get ( options . sourceFilePath ) ;
49+ let sourceMap : ISourceMap | null | undefined = this . _sourceMapByFilePath . get ( options . sourceFilePath ) ;
5050
5151 if ( sourceMap === undefined ) {
5252 // Normalize the path and redo the lookup
@@ -84,7 +84,7 @@ export class SourceMapper {
8484 sourceMap = { sourceMapConsumer, mappingItems} ;
8585 } else {
8686 // No source map for this filename
87- sourceMap = false ;
87+ sourceMap = null ; // tslint:disable-line:no-null-keyword
8888 }
8989
9090 this . _sourceMapByFilePath . set ( normalizedPath , sourceMap ) ;
@@ -95,7 +95,7 @@ export class SourceMapper {
9595 }
9696 }
9797
98- if ( sourceMap === false ) {
98+ if ( sourceMap === null ) {
9999 // No source map for this filename
100100 return ;
101101 }
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