Add line/col information for debugging purposes.

1 files changed, 17 insertions, 1 deletions

diff --git a/src/bytecode/debug.h b/src/bytecode/debug.h
index e07b9a2..ceedfbf 100644
--- a/src/bytecode/debug.h
+++ b/src/bytecode/debug.h
@@ -9,15 +9,31 @@ size_t disassemble_instruction(Chunk chunk, size_t offset);
 void
 disassemble_chunk(Chunk chunk, const char *name) {
     printf("== %s ==\n", name);
+    printf("code:\n");
     size_t offset = 0;
     while (offset < array_size(chunk.code)) {
         offset = disassemble_instruction(chunk, offset);
     }
+    printf("\nconstants:\n");
+    offset = 0;
+    while (offset < array_size(chunk.constants)) {
+        printf("\t%04ld -> ", offset);
+        display(chunk.constants[offset]);
+        printf("\n");
+        offset++;
+    }
 }
 
 size_t
 disassemble_instruction(Chunk chunk, size_t offset) {
-    printf("%04ld ", offset);
+    printf("\t%04ld ", offset);
+    if (offset > 0
+            && chunk.lines[offset].line == chunk.lines[offset - 1].line
+            && chunk.lines[offset].col == chunk.lines[offset - 1].col) {
+        printf("%4s|%-4s ", " ", " ");
+    } else {
+        printf("%4ld:%-4ld ", chunk.lines[offset].line, chunk.lines[offset].col);
+    }
     u8 instruction = chunk.code[offset];
     switch (instruction) {
         case OP_RETURN: {