use file id instead of file path in recorded locations

core/include/SourceLocation.h

@@ -1,37 +0,0 @@
-/*
-* Copyright 2018 Coati Software KG
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-* http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*/
-
-#ifndef SOURCETRAIL_SOURCE_LOCATION_H
-#define SOURCETRAIL_SOURCE_LOCATION_H
-
-#include <string>
-
-namespace sourcetrail
-{
-	/**
-	 * Struct that represents a single character location in a source file.
-	 *
-	 * Note: Line and column numbers start at 1 instead of 0!
-	*/
-	struct SourceLocation
-	{
-		std::string filePath;
-		int line;
-		int column;
-	};
-}
-
-#endif // SOURCETRAIL_SOURCE_LOCATION_H

core/include/SourceRange.h

@@ -17,18 +17,17 @@
 #ifndef SOURCETRAIL_SOURCE_RANGE_H
 #define SOURCETRAIL_SOURCE_RANGE_H
 
-#include <string>
-
 namespace sourcetrail
 {
 	/**
 	* Struct that represents the location of a range of characters in a source file.
 	*
 	* Note: Line and column numbers start at 1 instead of 0!
+	* Note: The SourceRange includes both, the start and the end column number.
 	*/
 	struct SourceRange
 	{
-		std::string filePath;
+		int fileId;
 		int startLine;
 		int startColumn;
 		int endLine;