From 71aa5e050cc52579e1e1557acf05e49cb156c68e Mon Sep 17 00:00:00 2001
From: Altagos <jakob@altagos.dev>
Date: Tue, 27 Jan 2026 14:20:33 +0100
Subject: [PATCH] runtime is always const

---
 pretty.zig | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/pretty.zig b/pretty.zig
index e6ad4c6..b43e469 100644
--- a/pretty.zig
+++ b/pretty.zig
@@ -204,7 +204,7 @@ const InnerFmtOptions = struct {
 fn innerFmt(
     comptime T: type,
     comptime ctx: Context,
-    run: *Runtime,
+    run: *const Runtime,
     value: T,
     comptime opts: InnerFmtOptions,
 ) error{WriteFailed}!void {
@@ -263,7 +263,7 @@ fn innerFmt(
 inline fn printType(
     comptime T: type,
     comptime ctx: Context,
-    run: *Runtime,
+    run: *const Runtime,
     value: T,
 ) error{WriteFailed}!void {
     const active_type = comptime std.meta.activeTag(@typeInfo(T));
@@ -342,7 +342,7 @@ inline fn formatValue(
 inline fn formatOptional(
     comptime T: type,
     comptime ctx: Context,
-    run: *Runtime,
+    run: *const Runtime,
     value: ?T,
 ) !void {
     return if (value) |val|
@@ -355,7 +355,7 @@ inline fn formatStruct(
     comptime T: type,
     comptime ctx: Context,
     comptime st: Type.Struct,
-    run: *Runtime,
+    run: *const Runtime,
     value: T,
 ) !void {
     const next_ctx = Context{
@@ -399,7 +399,7 @@ inline fn formatStruct(
 inline fn formatUnion(
     comptime T: type,
     comptime ctx: Context,
-    run: *Runtime,
+    run: *const Runtime,
     value: T,
 ) !void {
     switch (value) {
@@ -410,7 +410,7 @@ inline fn formatUnion(
 inline fn formatArray(
     comptime ctx: Context,
     comptime arr: Type.Array,
-    run: *Runtime,
+    run: *const Runtime,
     value: anytype,
 ) !void {
     const next_ctx = Context{
@@ -453,7 +453,7 @@ inline fn formatArray(
 inline fn formatVector(
     comptime ctx: Context,
     comptime vec: Type.Vector,
-    run: *Runtime,
+    run: *const Runtime,
     value: @Vector(vec.len, vec.child),
 ) !void {
     run.setColor(ctx, .dim);
@@ -478,7 +478,7 @@ inline fn formatVector(
 inline fn formatPtrOne(
     comptime ctx: Context,
     comptime ptr: Type.Pointer,
-    run: *Runtime,
+    run: *const Runtime,
     value: anytype,
 ) !void {
     const is_string = switch (@typeInfo(ptr.child)) {
@@ -493,7 +493,7 @@ inline fn formatPtrOne(
 inline fn formatPtrSlice(
     comptime ctx: Context,
     comptime ptr: Type.Pointer,
-    run: *Runtime,
+    run: *const Runtime,
     value: anytype,
 ) !void {
     if (ptr.child == u8 and ctx.options.ptr_slice_u8_as_string)
@@ -536,7 +536,7 @@ inline fn formatPtrSlice(
 inline fn formatPtrMany(
     comptime ctx: Context,
     comptime ptr: Type.Pointer,
-    run: *Runtime,
+    run: *const Runtime,
     value: anytype,
 ) !void {
     _ = ptr;
@@ -548,7 +548,7 @@ inline fn formatPtrMany(
 
 inline fn formatString(
     comptime ctx: Context,
-    run: *Runtime,
+    run: *const Runtime,
     value: anytype,
 ) !void {
     run.setColor(ctx, .string);
@@ -571,7 +571,7 @@ inline fn formatErrorSet(
 
 inline fn formatErrorUnion(
     comptime ctx: Context,
-    run: *Runtime,
+    run: *const Runtime,
     value: anytype,
 ) !void {
     const val = value catch |err| return formatErrorSet(ctx, run, err);
-- 
2.51.2