1 files changed, 32 insertions, 0 deletions
diff --git a/src/bun.zig b/src/bun.zig
index c4dad48cf..89b92f9fd 100644
--- a/src/bun.zig
+++ b/src/bun.zig
@@ -765,6 +765,34 @@ pub const FDHashMapContext = struct {
         }
     };
 };
+
+pub const U32HashMapContext = struct {
+    pub fn hash(_: @This(), value: u32) u64 {
+        return @intCast(value);
+    }
+    pub fn eql(_: @This(), a: u32, b: u32) bool {
+        return a == b;
+    }
+    pub fn pre(input: u32) Prehashed {
+        return Prehashed{
+            .value = @This().hash(.{}, input),
+            .input = input,
+        };
+    }
+
+    pub const Prehashed = struct {
+        value: u64,
+        input: u32,
+        pub fn hash(this: @This(), value: u32) u64 {
+            if (value == this.input) return this.value;
+            return @intCast(value);
+        }
+
+        pub fn eql(_: @This(), a: u32, b: u32) bool {
+            return a == b;
+        }
+    };
+};
 // These wrappers exist to use our strings.eqlLong function
 pub const StringArrayHashMapContext = struct {
     pub fn hash(_: @This(), s: []const u8) u32 {
@@ -871,6 +899,10 @@ pub fn FDHashMap(comptime Type: type) type {
     return std.HashMap(StoredFileDescriptorType, Type, FDHashMapContext, std.hash_map.default_max_load_percentage);
 }
 
+pub fn U32HashMap(comptime Type: type) type {
+    return std.HashMap(u32, Type, U32HashMapContext, std.hash_map.default_max_load_percentage);
+}
+
 const CopyFile = @import("./copy_file.zig");
 pub const copyFileRange = CopyFile.copyFileRange;
 pub const canUseCopyFileRangeSyscall = CopyFile.canUseCopyFileRangeSyscall;