From f247d3c52db545f72eb140ce1a0b681b2a650d2d Mon Sep 17 00:00:00 2001
From: Ryan Fleury <ryan.j.fleury@gmail.com>
Date: Sat, 11 Jul 2026 06:23:05 -0700
Subject: [PATCH] fix chunk-up/down

---
 src/raddbg/raddbg_views.c | 8 ++++++--
 src/text/text.c           | 1 +
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/raddbg/raddbg_views.c b/src/raddbg/raddbg_views.c
index 73e0bb40..cf0ca59a 100644
--- a/src/raddbg/raddbg_views.c
+++ b/src/raddbg/raddbg_views.c
@@ -197,7 +197,8 @@ rd_code_view_build(Arena *arena, RD_CodeViewState *cv, RD_CodeViewBuildFlags fla
       //- rjf: movement down (chunk)
       if(need_nav && evt->delta_unit == UI_EventDeltaUnit_Word && delta.y > 0 && line_num+1 <= line_count)
       {
-        for(U64 scan_line_num = line_num+1; scan_line_num <= line_count; scan_line_num += 1)
+        B32 done = 0;
+        for(U64 scan_line_num = line_num+1; !done && scan_line_num <= line_count; scan_line_num += 1)
         {
           Temp scratch = scratch_begin(&arena, 1);
           Rng1U64 line_range = txt_range_from_line_num(&text_patched.line_map, scan_line_num);
@@ -206,6 +207,7 @@ rd_code_view_build(Arena *arena, RD_CodeViewState *cv, RD_CodeViewBuildFlags fla
           if(line_without_whitespace.size == 0)
           {
             *cursor = line_range.min + (U64)(line_without_whitespace.str - line.str);
+            done = 1;
           }
           else if(scan_line_num == line_count)
           {
@@ -218,7 +220,8 @@ rd_code_view_build(Arena *arena, RD_CodeViewState *cv, RD_CodeViewBuildFlags fla
       //- rjf: movement up (chunk)
       if(need_nav && evt->delta_unit == UI_EventDeltaUnit_Word && delta.y < 0 && line_num > 1)
       {
-        for(U64 scan_line_num = line_num-1; scan_line_num > 0; scan_line_num -= 1)
+        B32 done = 0;
+        for(U64 scan_line_num = line_num-1; !done && scan_line_num > 0; scan_line_num -= 1)
         {
           Temp scratch = scratch_begin(&arena, 1);
           Rng1U64 line_range = txt_range_from_line_num(&text_patched.line_map, scan_line_num);
@@ -227,6 +230,7 @@ rd_code_view_build(Arena *arena, RD_CodeViewState *cv, RD_CodeViewBuildFlags fla
           if(line_without_whitespace.size == 0)
           {
             *cursor = line_range.min + (U64)(line_without_whitespace.str - line.str);
+            done = 1;
           }
           else if(scan_line_num == 1)
           {
diff --git a/src/text/text.c b/src/text/text.c
index db426306..7669194a 100644
--- a/src/text/text.c
+++ b/src/text/text.c
@@ -3088,6 +3088,7 @@ txt_artifact_create(String8 key, B32 *cancel_signal, AC_Status *status_out, U64
           }
           U64 line_size = dim_1u64(line_range);
           shared->info.lines_ranges[lane_line_base_idxs[lane_idx()] + lane_line_idx] = line_range;
+          // TODO(rjf): this is a race:
           shared->info.lines_max_size = Max(shared->info.lines_max_size, line_size);
           lane_line_idx += 1;
           line_start_idx = idx+1;