Update build script to latest Zig version

build.zig

@@ -38,17 +38,9 @@ pub fn build(builder: *std.Build) void {
 		ona_exe.addModule("ona", ona_module);
 		ona_exe.addModule("kym", kym_module);
 
-		ona_exe.install();
 		// ona_exe.addIncludeDir("./ext");
 		ona_exe.linkSystemLibrary("SDL2");
 		ona_exe.linkLibC();
-
-		const run_cmd = ona_exe.run();
-
-		run_cmd.step.dependOn(builder.getInstallStep());
-
-		if (builder.args) |args| run_cmd.addArgs(args);
-
-		builder.step("run", "Run Ona application").dependOn(&run_cmd.step);
+		builder.installArtifact(ona_exe);
 	}
 }

source/coral/io.zig

@@ -164,13 +164,22 @@ pub fn equals(this: []const u8, that: []const u8) bool {
 
 var null_context = @as(usize, 0);
 
+pub const null_allocator = Allocator.bind(&null_context, struct {
+	fn reallocate(context: *usize, options: AllocationOptions) ?[]u8 {
+		debug.assert(context.* == 0);
+		debug.assert(options.allocation == null);
+
+		return null;
+	}
+});
+
 pub const null_writer = Writer.bind(&null_context, struct {
-	pub fn write(context: *usize, buffer: []const u8) usize {
+	fn write(context: *usize, buffer: []const u8) usize {
 		debug.assert(context.* == 0);
 
 		return buffer.len;
 	}
-});
+}.write);
 
 pub fn overlaps(pointer: [*]u8, memory_range: []u8) bool {
 	return (pointer >= memory_range.ptr) and (pointer < (memory_range.ptr + memory_range.len));

source/coral/slots.zig

@@ -97,8 +97,33 @@ pub fn Dense(comptime key: Key, comptime Element: type) type {
 			};
 		}
 
-		pub fn remove(_: *Self, _: u128) bool {
-			// TODO: Implement.
+		pub fn remove(self: *Self, slot: KeySlot) bool {
+			const redirect = &self.slots[slot.index];
+
+			if (slot.salt != redirect.salt) {
+				return false;
+			}
+
+			const free_index = redirect.index;
+
+			self.values = self.values[0 .. (self.values.len - 1)];
+
+			if (self.values.len > 0) {
+				const free_data = &self.data[free_index];
+				const free_erase = &self.erase[free_index];
+				const last_data = &self.data[self.values.len];
+				const last_erase = &self.erase[self.values.len];
+
+				free_data.* = last_data.*;
+				free_erase.* = last_erase.*;
+				self.slots[free_erase.*].index = free_index;
+			}
+
+			redirect.salt = math.max(redirect.salt +% 1, 1);
+			redirect.index = self.next_free;
+			self.next_free = slot.index;
+
+			return true;
 		}
 	};
 }