From 9ca360c6b306ee43d4c48c19dae1d79ec483a807 Mon Sep 17 00:00:00 2001
From: "andrew.kraevskii" <andrew.kraevskii@gmail.com>
Date: Wed, 4 Mar 2026 01:56:32 +0300
Subject: [PATCH 1/8] Im trying not to die of old age waiting on llvm :(

---
 build.zig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/build.zig b/build.zig
index 56ebed9..aed4363 100644
--- a/build.zig
+++ b/build.zig
@@ -8,8 +8,8 @@ pub fn build(b: *std.Build) void {
 
     const exe = b.addExecutable(.{
         .name = "Zivro",
-        .use_llvm = true,
-        .use_lld = true,
+        // .use_llvm = true,
+        // .use_lld = true,
         .root_module = b.createModule(.{
             .root_source_file = b.path("src/main.zig"),
             .target = target,

From 3348b2e91ce7f6f17f408133157279ca4594d875 Mon Sep 17 00:00:00 2001
From: "andrew.kraevskii" <andrew.kraevskii@gmail.com>
Date: Wed, 4 Mar 2026 00:22:46 +0300
Subject: [PATCH 2/8] Update to latest dvui.

---
 build.zig.zon                  |  4 ++--
 review.txt                     |  0
 src/render/CpuRenderEngine.zig |  4 ++--
 src/ui/canvas_view.zig         | 15 ++++++++-------
 src/ui/left_panel.zig          | 12 +++++++-----
 5 files changed, 19 insertions(+), 16 deletions(-)
 create mode 100644 review.txt

diff --git a/build.zig.zon b/build.zig.zon
index c0ed749..e126f18 100644
--- a/build.zig.zon
+++ b/build.zig.zon
@@ -33,8 +33,8 @@
     // internet connectivity.
     .dependencies = .{
         .dvui = .{
-            .url = "https://github.com/david-vanderson/dvui/archive/main.tar.gz",
-            .hash = "dvui-0.4.0-dev-AQFJmev72QC6e0ojhnW8a_wRhZDgzWWLgeyoNuIPZc2m",
+            .url = "git+https://github.com/david-vanderson/dvui#edb2d5a4cd2981fca74ee5f096277b91333c1316",
+            .hash = "dvui-0.4.0-dev-AQFJmeGB3QAwun9qF76CDE5IopA4nUVRgD-IwwTsOo4H",
         },
 
         // See `zig fetch --save <url>` for a command-line interface for adding dependencies.
diff --git a/review.txt b/review.txt
new file mode 100644
index 0000000..e69de29
diff --git a/src/render/CpuRenderEngine.zig b/src/render/CpuRenderEngine.zig
index 6ec4187..c6e0451 100644
--- a/src/render/CpuRenderEngine.zig
+++ b/src/render/CpuRenderEngine.zig
@@ -172,7 +172,7 @@ pub fn example(self: CpuRenderEngine, canvas_size: Size_i, visible_rect: Rect_i)
         .Squares => self.renderSquares(pixels, canvas_size, visible_rect),
     }
 
-    return try dvui.textureCreate(pixels, width, height, .nearest);
+    return try dvui.textureCreate(pixels, width, height, .nearest, .rgba_8_8_8_8);
 }
 
 pub fn renderEngine(self: *CpuRenderEngine) RenderEngine {
@@ -191,7 +191,7 @@ pub fn renderDocument(self: *CpuRenderEngine, document: *const Document, canvas_
     try cpu_draw.drawDocument(pixels, width, height, visible_rect, document, canvas_size, self._allocator);
     self._renderStats.render_time_ns = t.read();
 
-    return try dvui.textureCreate(pixels, width, height, .nearest);
+    return try dvui.textureCreate(pixels, width, height, .nearest, .rgba_8_8_8_8);
 }
 
 pub fn getStats(self: CpuRenderEngine) RenderStats {
diff --git a/src/ui/canvas_view.zig b/src/ui/canvas_view.zig
index aff748c..e44ec83 100644
--- a/src/ui/canvas_view.zig
+++ b/src/ui/canvas_view.zig
@@ -17,14 +17,15 @@ pub fn canvasView(canvas: *Canvas, selected_object_id: ?u64, content_rect_scale:
         var overlay = dvui.overlay(@src(), .{ .expand = .both });
         {
             const overlay_parent = dvui.parentGet();
+            const init_options: dvui.ScrollAreaWidget.InitOpts = .{
+                .scroll_info = &canvas.scroll,
+                .vertical_bar = .auto,
+                .horizontal_bar = .auto,
+                .process_events_after = false,
+            };
             var scroll = dvui.scrollArea(
                 @src(),
-                .{
-                    .scroll_info = &canvas.scroll,
-                    .vertical_bar = .auto,
-                    .horizontal_bar = .auto,
-                    .process_events_after = false,
-                },
+                init_options,
                 .{
                     .expand = .both,
                     .background = false,
@@ -100,7 +101,7 @@ pub fn canvasView(canvas: *Canvas, selected_object_id: ?u64, content_rect_scale:
                 }
             }
 
-            if (!scroll.init_opts.process_events_after) {
+            if (!init_options.process_events_after) {
                 if (scroll.scroll) |*sc| {
                     dvui.clipSet(sc.prevClip);
                     sc.processEventsAfter();
diff --git a/src/ui/left_panel.zig b/src/ui/left_panel.zig
index 67370ee..d036ba0 100644
--- a/src/ui/left_panel.zig
+++ b/src/ui/left_panel.zig
@@ -222,11 +222,13 @@ pub fn leftPanel(ctx: *WindowContext) void {
             },
         );
         {
-            dvui.label(@src(), "Objects", .{}, .{ .font = .{
-                .id = dvui.themeGet().font_heading.id,
-                .line_height_factor = dvui.themeGet().font_heading.line_height_factor,
-                .size = dvui.themeGet().font_heading.size + 8,
-            }, .gravity_x = 0.5 });
+            dvui.label(@src(), "Objects", .{}, .{
+                .font = .{
+                    .line_height_factor = dvui.themeGet().font_heading.line_height_factor,
+                    .size = dvui.themeGet().font_heading.size + 8,
+                },
+                .gravity_x = 0.5,
+            });
             var scroll = dvui.scrollArea(
                 @src(),
                 .{ .vertical = .auto, .horizontal = .auto },

From e3a45061948de2511955e419bdde58942b853684 Mon Sep 17 00:00:00 2001
From: "andrew.kraevskii" <andrew.kraevskii@gmail.com>
Date: Wed, 4 Mar 2026 01:13:03 +0300
Subject: [PATCH 3/8] Use std.mem.Allocator.dupe instead of @memcpy.

---
 src/models/Property.zig    | 3 +--
 src/models/shape/shape.zig | 3 +--
 src/random_document.zig    | 3 +--
 src/ui/canvas_view.zig     | 3 +--
 4 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/src/models/Property.zig b/src/models/Property.zig
index 8404742..39a7553 100644
--- a/src/models/Property.zig
+++ b/src/models/Property.zig
@@ -51,8 +51,7 @@ pub const Property = struct {
             .points => |slice| .{
                 .data = .{
                     .points = blk: {
-                        const copy = try allocator.alloc(Point2_f, slice.len);
-                        @memcpy(copy, slice);
+                        const copy = try allocator.dupe(Point2_f, slice);
                         break :blk copy;
                     },
                 },
diff --git a/src/models/shape/shape.zig b/src/models/shape/shape.zig
index 9b5ae27..6aef5cd 100644
--- a/src/models/shape/shape.zig
+++ b/src/models/shape/shape.zig
@@ -15,8 +15,7 @@ fn appendShapeProperties(allocator: std.mem.Allocator, obj: *Object, props: []co
     for (props) |prop| {
         if (prop.data == .points) {
             const pts = prop.data.points;
-            const copy = try allocator.alloc(Point2_f, pts.len);
-            @memcpy(copy, pts);
+            const copy = try allocator.dupe(Point2_f, pts);
             try obj.properties.append(allocator, .{ .data = .{ .points = copy } });
         } else {
             try obj.properties.append(allocator, prop);
diff --git a/src/random_document.zig b/src/random_document.zig
index edc60e0..96c37d6 100644
--- a/src/random_document.zig
+++ b/src/random_document.zig
@@ -84,8 +84,7 @@ fn randomizeObjectProperties(allocator: std.mem.Allocator, doc_size: *const Size
                 x += randFloat(rng, -40, 80);
                 y += randFloat(rng, -30, 60);
             }
-            const slice = try allocator.alloc(Point2_f, list.items.len);
-            @memcpy(slice, list.items);
+            const slice = try allocator.dupe(Point2_f, list.items);
             try obj.setProperty(allocator, .{ .data = .{ .points = slice } });
         },
     }
diff --git a/src/ui/canvas_view.zig b/src/ui/canvas_view.zig
index e44ec83..4062b5f 100644
--- a/src/ui/canvas_view.zig
+++ b/src/ui/canvas_view.zig
@@ -676,8 +676,7 @@ fn drawPropertyEditor(canvas: *Canvas, obj: *Document.Object, prop: *const Prope
                 }
 
                 if (changed) {
-                    const slice = canvas.allocator.alloc(Point2_f, list.items.len) catch return;
-                    @memcpy(slice, list.items);
+                    const slice = canvas.allocator.dupe(Point2_f, list.items) catch return;
                     obj.setProperty(canvas.allocator, .{ .data = .{ .points = slice } }) catch {
                         canvas.allocator.free(slice);
                         return;

From cc10d806fe8c93f0d138f809c9950e2b370c293e Mon Sep 17 00:00:00 2001
From: "andrew.kraevskii" <andrew.kraevskii@gmail.com>
Date: Wed, 4 Mar 2026 01:13:03 +0300
Subject: [PATCH 4/8] Return type of field of property instead of property.

---
 src/models/Object.zig       |  4 ++--
 src/models/shape/shape.zig  |  2 +-
 src/render/cpu/broken.zig   | 13 ++++++-------
 src/render/cpu/draw.zig     |  2 +-
 src/render/cpu/ellipse.zig  | 18 +++++++++---------
 src/render/cpu/line.zig     | 10 +++++-----
 src/render/cpu/pipeline.zig |  8 ++++----
 7 files changed, 28 insertions(+), 29 deletions(-)

diff --git a/src/models/Object.zig b/src/models/Object.zig
index 959b6cd..91c610b 100644
--- a/src/models/Object.zig
+++ b/src/models/Object.zig
@@ -33,9 +33,9 @@ shape: ShapeKind,
 properties: std.ArrayList(Property),
 children: std.ArrayList(Object),
 
-pub fn getProperty(self: Object, tag: std.meta.Tag(PropertyData)) ?*const PropertyData {
+pub fn getProperty(self: Object, comptime tag: std.meta.Tag(PropertyData)) ?@FieldType(PropertyData, @tagName(tag)) {
     for (self.properties.items) |*prop| {
-        if (std.meta.activeTag(prop.data) == tag) return &prop.data;
+        if (std.meta.activeTag(prop.data) == tag) return @field(prop.data, @tagName(tag));
     }
     return null;
 }
diff --git a/src/models/shape/shape.zig b/src/models/shape/shape.zig
index 6aef5cd..fd6da90 100644
--- a/src/models/shape/shape.zig
+++ b/src/models/shape/shape.zig
@@ -32,7 +32,7 @@ pub fn createObject(allocator: std.mem.Allocator, shape_kind: Object.ShapeKind)
         .ellipse => try appendShapeProperties(allocator, &obj, &ellipse.default_shape_properties),
         .broken => {
             try appendShapeProperties(allocator, &obj, &broken.default_shape_properties);
-            try obj.setProperty(allocator, .{ .data = .{ .fill_rgba = obj.getProperty(.stroke_rgba).?.stroke_rgba } });
+            try obj.setProperty(allocator, .{ .data = .{ .fill_rgba = obj.getProperty(.stroke_rgba).? } });
         },
     }
     return obj;
diff --git a/src/render/cpu/broken.zig b/src/render/cpu/broken.zig
index e2d2e7d..d0dc486 100644
--- a/src/render/cpu/broken.zig
+++ b/src/render/cpu/broken.zig
@@ -16,14 +16,13 @@ pub fn draw(
     obj: *const Object,
     allocator: std.mem.Allocator,
 ) !void {
-    const p_prop = obj.getProperty(.points) orelse return;
-    const pts = p_prop.points;
+    const pts = obj.getProperty(.points) orelse return;
     if (pts.len < 2) return;
-    const stroke = if (obj.getProperty(.stroke_rgba)) |s| pipeline.rgbaToPma(s.stroke_rgba) else default_stroke;
-    const thickness = if (obj.getProperty(.thickness)) |t| t.thickness else default_thickness;
-    const closed = if (obj.getProperty(.closed)) |c| c.closed else false;
-    const filled = if (obj.getProperty(.filled)) |f| f.filled else true;
-    const fill_color = if (obj.getProperty(.fill_rgba)) |f| pipeline.rgbaToPma(f.fill_rgba) else default_fill;
+    const stroke = if (obj.getProperty(.stroke_rgba)) |stroke_rgba| pipeline.rgbaToPma(stroke_rgba) else default_stroke;
+    const thickness = obj.getProperty(.thickness) orelse default_thickness;
+    const closed = obj.getProperty(.closed) orelse false;
+    const filled = obj.getProperty(.filled) orelse true;
+    const fill_color = if (obj.getProperty(.fill_rgba)) |fill_rgba| pipeline.rgbaToPma(fill_rgba) else default_fill;
 
     const buffer = try allocator.alloc(Color.PMA, ctx.buf_width * ctx.buf_height);
     @memset(buffer, .{ .r = 0, .g = 0, .b = 0, .a = 0 });
diff --git a/src/render/cpu/draw.zig b/src/render/cpu/draw.zig
index 3997b83..abaa033 100644
--- a/src/render/cpu/draw.zig
+++ b/src/render/cpu/draw.zig
@@ -13,7 +13,7 @@ const DrawContext = pipeline.DrawContext;
 const Transform = pipeline.Transform;
 
 fn isVisible(obj: *const Object) bool {
-    return if (obj.getProperty(.visible)) |p| p.visible else true;
+    return obj.getProperty(.visible) orelse true;
 }
 
 fn drawObject(
diff --git a/src/render/cpu/ellipse.zig b/src/render/cpu/ellipse.zig
index c5dd031..301b2b8 100644
--- a/src/render/cpu/ellipse.zig
+++ b/src/render/cpu/ellipse.zig
@@ -17,17 +17,17 @@ const default_thickness: f32 = 2.0;
 /// arc_percent: 100 — полный эллипс, иначе одна дуга; обход в коде от (0,ry) по квадрантам (визуально может казаться от низа против часовой из‑за экранной Y).
 /// Отрисовка в отдельный буфер и один composite, чтобы при alpha<255 пиксели не накладывались несколько раз.
 pub fn draw(ctx: *DrawContext, obj: *const Object, allocator: std.mem.Allocator) !void {
-    const r_prop = obj.getProperty(.radii) orelse return;
-    const rx = r_prop.radii.x;
-    const ry = r_prop.radii.y;
+    const radii = obj.getProperty(.radii) orelse return;
+    const rx = radii.x;
+    const ry = radii.y;
     if (rx <= 0 or ry <= 0) return;
 
-    const stroke = if (obj.getProperty(.stroke_rgba)) |s| pipeline.rgbaToPma(s.stroke_rgba) else default_stroke;
-    const thickness = if (obj.getProperty(.thickness)) |t| t.thickness else default_thickness;
-    const arc_percent = std_math.clamp(if (obj.getProperty(.arc_percent)) |p| p.arc_percent else 100.0, 0.0, 100.0);
-    const closed = if (obj.getProperty(.closed)) |c| c.closed else true;
-    const filled = if (obj.getProperty(.filled)) |f| f.filled else false;
-    const fill_color = if (obj.getProperty(.fill_rgba)) |f| pipeline.rgbaToPma(f.fill_rgba) else default_fill;
+    const stroke = if (obj.getProperty(.stroke_rgba)) |stroke_rgba| pipeline.rgbaToPma(stroke_rgba) else default_stroke;
+    const thickness = if (obj.getProperty(.thickness)) |thickness| thickness else default_thickness;
+    const arc_percent = std_math.clamp(if (obj.getProperty(.arc_percent)) |arc_percent| arc_percent else 100.0, 0.0, 100.0);
+    const closed = obj.getProperty(.closed) orelse true;
+    const filled = obj.getProperty(.filled) orelse false;
+    const fill_color = if (obj.getProperty(.fill_rgba)) |fill_rgba| pipeline.rgbaToPma(fill_rgba) else default_fill;
     const do_fill = filled and (closed or arc_percent >= 100.0);
 
     const t = &ctx.transform;
diff --git a/src/render/cpu/line.zig b/src/render/cpu/line.zig
index 0715482..f12fdae 100644
--- a/src/render/cpu/line.zig
+++ b/src/render/cpu/line.zig
@@ -12,11 +12,11 @@ const default_thickness: f32 = 2.0;
 
 /// Линия от (0,0) до end_point.
 pub fn draw(ctx: *DrawContext, obj: *const Object) void {
-    const ep_prop = obj.getProperty(.end_point) orelse return;
-    const end_x = ep_prop.end_point.x;
-    const end_y = ep_prop.end_point.y;
-    const stroke = if (obj.getProperty(.stroke_rgba)) |s| pipeline.rgbaToPma(s.stroke_rgba) else default_stroke;
-    const thickness = if (obj.getProperty(.thickness)) |t| t.thickness else default_thickness;
+    const end_point = obj.getProperty(.end_point) orelse return;
+    const end_x = end_point.x;
+    const end_y = end_point.y;
+    const stroke = if (obj.getProperty(.stroke_rgba)) |stroke_rgba| pipeline.rgbaToPma(stroke_rgba) else default_stroke;
+    const thickness = obj.getProperty(.thickness) orelse default_thickness;
     drawLine(ctx, 0, 0, end_x, end_y, stroke, thickness, false);
 }
 
diff --git a/src/render/cpu/pipeline.zig b/src/render/cpu/pipeline.zig
index 6713857..d4db169 100644
--- a/src/render/cpu/pipeline.zig
+++ b/src/render/cpu/pipeline.zig
@@ -16,10 +16,10 @@ pub const Transform = struct {
     opacity: f32 = 1.0,
 
     pub fn init(obj: *const Document.Object) Transform {
-        const pos = if (obj.getProperty(.position)) |p| p.position else Point2_f{ .x = 0, .y = 0 };
-        const angle = if (obj.getProperty(.angle)) |p| p.angle else 0;
-        const scale = if (obj.getProperty(.scale)) |p| p.scale else Scale2_f{ .scale_x = 1, .scale_y = 1 };
-        const opacity = if (obj.getProperty(.opacity)) |p| p.opacity else 1.0;
+        const pos = obj.getProperty(.position) orelse Point2_f{ .x = 0, .y = 0 };
+        const angle = obj.getProperty(.angle) orelse 0;
+        const scale = obj.getProperty(.scale) orelse Scale2_f{ .scale_x = 1, .scale_y = 1 };
+        const opacity = obj.getProperty(.opacity) orelse 1.0;
         return .{
             .position = pos,
             .angle = angle,

From 0a47ea1e43e174aed593cb3381ddbb64a5454a9d Mon Sep 17 00:00:00 2001
From: "andrew.kraevskii" <andrew.kraevskii@gmail.com>
Date: Wed, 4 Mar 2026 01:32:03 +0300
Subject: [PATCH 5/8] If function doesn't do anything related to object just
 don't pass object to it

---
 src/render/CpuRenderEngine.zig | 6 ++----
 src/render/cpu/pipeline.zig    | 4 +---
 2 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/src/render/CpuRenderEngine.zig b/src/render/CpuRenderEngine.zig
index c6e0451..eb3766c 100644
--- a/src/render/CpuRenderEngine.zig
+++ b/src/render/CpuRenderEngine.zig
@@ -66,9 +66,7 @@ fn renderGradient(self: CpuRenderEngine, pixels: []Color.PMA, width: u32, height
     }
 }
 
-fn renderSquares(self: CpuRenderEngine, pixels: []Color.PMA, canvas_size: Size_i, visible_rect: Rect_i) void {
-    _ = self;
-
+fn renderSquares(pixels: []Color.PMA, canvas_size: Size_i, visible_rect: Rect_i) void {
     const colors = [_]Color.PMA{
         .{ .r = 255, .g = 0, .b = 0, .a = 255 },
         .{ .r = 255, .g = 165, .b = 0, .a = 255 },
@@ -169,7 +167,7 @@ pub fn example(self: CpuRenderEngine, canvas_size: Size_i, visible_rect: Rect_i)
 
     switch (self.type) {
         .Gradient => self.renderGradient(pixels, width, height, full_w, full_h, visible_rect),
-        .Squares => self.renderSquares(pixels, canvas_size, visible_rect),
+        .Squares => renderSquares(pixels, canvas_size, visible_rect),
     }
 
     return try dvui.textureCreate(pixels, width, height, .nearest, .rgba_8_8_8_8);
diff --git a/src/render/cpu/pipeline.zig b/src/render/cpu/pipeline.zig
index d4db169..933163f 100644
--- a/src/render/cpu/pipeline.zig
+++ b/src/render/cpu/pipeline.zig
@@ -273,7 +273,7 @@ const FillCanvas = struct {
         }.lessThan);
 
         // Семена: по строкам находим сегменты (пары x), пересекаем с окном буфера, берём середину сегмента.
-        var seeds = findFillSeeds(self, keys_buf.items, buf_w_i, buf_h_i, allocator) catch return;
+        var seeds = findFillSeeds(keys_buf.items, buf_w_i, buf_h_i, allocator) catch return;
         defer seeds.deinit(allocator);
 
         var stack = std.ArrayList(Point2_i).empty;
@@ -304,13 +304,11 @@ const FillCanvas = struct {
 
     /// По строкам: рёбра (подряд идущие x) → сегменты между ними. Семена — середины чётных сегментов (при чётном числе границ).
     fn findFillSeeds(
-        self: *const FillCanvas,
         keys: []const Point2_i,
         buf_w_i: i32,
         buf_h_i: i32,
         allocator: std.mem.Allocator,
     ) !std.ArrayList(Point2_i) {
-        _ = self;
         var list = std.ArrayList(Point2_i).empty;
         errdefer list.deinit(allocator);
         var segments = std.ArrayList(struct { left: i32, right: i32 }).empty;

From b0259c5788c7efc7bd81ab5138dd0a3f22061fe4 Mon Sep 17 00:00:00 2001
From: "andrew.kraevskii" <andrew.kraevskii@gmail.com>
Date: Wed, 4 Mar 2026 01:43:59 +0300
Subject: [PATCH 6/8] Stuff.

---
 src/WindowContext.zig | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/src/WindowContext.zig b/src/WindowContext.zig
index 9e14d05..a702416 100644
--- a/src/WindowContext.zig
+++ b/src/WindowContext.zig
@@ -16,15 +16,10 @@ pub const OpenDocument = struct {
     selected_object_id: ?u64 = null,
 
     pub fn init(allocator: std.mem.Allocator, self: *OpenDocument) void {
-        const default_size = basic_models.Size_f{ .w = 800, .h = 600 };
-        self.document = Document.init(default_size);
-        self.cpu_render = CpuRenderEngine.init(allocator, .Squares);
-        self.canvas = Canvas.init(
-            allocator,
-            &self.document,
-            (&self.cpu_render).renderEngine(),
-        );
-        self.selected_object_id = null;
+        initWithDocument(allocator, self, .init(.{
+            .w = 800,
+            .h = 600,
+        }));
     }
 
     pub fn initWithDocument(allocator: std.mem.Allocator, self: *OpenDocument, doc: Document) void {

From 045624beac13f7a2c8422700dd13dae3d82c35f4 Mon Sep 17 00:00:00 2001
From: "andrew.kraevskii" <andrew.kraevskii@gmail.com>
Date: Wed, 4 Mar 2026 01:43:59 +0300
Subject: [PATCH 7/8] Use leak detection of DebugAllocator.

When allocating memory it remebers where memory was allocated but it only
for leaks in .deinit(). So not calling it is a sure way to miss a bunch of leaks.

deinit() returns if it found leaks but we don't really care. Its usefull for tests but not here.
---
 src/main.zig | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main.zig b/src/main.zig
index 0a46dd0..f641daa 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -5,7 +5,9 @@ const WindowContext = @import("WindowContext.zig");
 const ui = @import("ui/frame.zig");
 
 pub fn main() !void {
-    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
+    // std.heap.GeneralPurposeAllocator was renamed to DebugAllocator recently.
+    var gpa: std.heap.DebugAllocator(.{}) = .init;
+    defer _ = gpa.deinit();
     const allocator = gpa.allocator();
 
     var backend = try SDLBackend.initWindow(.{

From d6c8a062cd430ae7a50d326d5bfa58d5e57afd58 Mon Sep 17 00:00:00 2001
From: "andrew.kraevskii" <andrew.kraevskii@gmail.com>
Date: Wed, 4 Mar 2026 01:46:16 +0300
Subject: [PATCH 8/8] Fix memory leaks found by DebugAllocator.

---
 src/main.zig            | 1 +
 src/random_document.zig | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/src/main.zig b/src/main.zig
index f641daa..9a5da46 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -8,6 +8,7 @@ pub fn main() !void {
     // std.heap.GeneralPurposeAllocator was renamed to DebugAllocator recently.
     var gpa: std.heap.DebugAllocator(.{}) = .init;
     defer _ = gpa.deinit();
+
     const allocator = gpa.allocator();
 
     var backend = try SDLBackend.initWindow(.{
diff --git a/src/random_document.zig b/src/random_document.zig
index 96c37d6..27db6db 100644
--- a/src/random_document.zig
+++ b/src/random_document.zig
@@ -85,6 +85,7 @@ fn randomizeObjectProperties(allocator: std.mem.Allocator, doc_size: *const Size
                 y += randFloat(rng, -30, 60);
             }
             const slice = try allocator.dupe(Point2_f, list.items);
+            errdefer allocator.free(slice);
             try obj.setProperty(allocator, .{ .data = .{ .points = slice } });
         },
     }
@@ -99,6 +100,7 @@ pub fn addRandomShapes(doc: *Document, allocator: std.mem.Allocator, rng: std.Ra
     for (0..n_root) |_| {
         if (total_count >= max_total) break;
         var obj = try shape.createObject(allocator, randomShapeKind(rng));
+        defer obj.deinit(allocator);
         try randomizeObjectProperties(allocator, &doc.size, &obj, rng);
         try doc.addObject(allocator, obj);
         total_count += 1;
@@ -116,6 +118,7 @@ pub fn addRandomShapes(doc: *Document, allocator: std.mem.Allocator, rng: std.Ra
         for (0..n_children) |_| {
             if (total_count >= max_total) break;
             var child = try shape.createObject(allocator, randomShapeKind(rng));
+            defer child.deinit(allocator);
             try randomizeObjectProperties(allocator, &doc.size, &child, rng);
             try obj.addChild(allocator, child, &doc.next_object_id);
             total_count += 1;