Working on source line information

git-svn-id: svn://svn.cc65.org/cc65/trunk@747 b7a2c559-68d2-44c3-8de9-860c34a00d81

src/ca65/lineinfo.c

@@ -33,6 +33,16 @@
 
 
 
+/* Note: The line infos kept here are additional line infos supplied by the
+ * ".dbg line" command. The native line infos are always kept in the fragments
+ * itself (because one fragment always originates from one line). The
+ * additional line infos (which may not exist if none are supplied in the
+ * source) may have several fragments attached (as is the case with sources
+ * generated by the C compiler).
+ */
+
+
+
 /* common */
 #include "coll.h"
 #include "xmalloc.h"
@@ -72,11 +82,12 @@ static LineInfo* NewLineInfo (unsigned FileIndex, unsigned long LineNum)
     LineInfo* LI = xmalloc (sizeof (LineInfo));
 
     /* Initialize the fields */
-    LI->Next      = 0;
-    LI->Usage     = 0;
-    LI->LineNum   = LineNum;
-    LI->FileIndex = FileIndex;
-    LI->Index     = 0;           /* Currently invalid */
+    LI->Next     = 0;
+    LI->Usage    = 0;
+    LI->Index    = 0;           /* Currently invalid */
+    LI->Pos.Line = LineNum;
+    LI->Pos.Col  = 0;
+    LI->Pos.Name = FileIndex;
 
     /* Insert this structure into the line info list */
     if (LineInfoLast == 0) {
@@ -100,8 +111,9 @@ LineInfo* UseLineInfo (LineInfo* LI)
  * function will gracefully accept NULL pointers and do nothing in this case.
  */
 {
-    CHECK (LI != 0);
-    ++LI->Usage;
+    if (LI) {
+	++LI->Usage;
+    }
     return LI;
 }