From 804204db7cf1e8a28defd359d17fa72949e13eff Mon Sep 17 00:00:00 2001
From: Nathan Reiner <nathan@nathanreiner.xyz>
Date: Mon, 31 Aug 2026 23:05:16 +0200
Subject: Implement with ptrCast to make it more transparent.

---
 src/dict.zig | 143 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 143 insertions(+)
 create mode 100644 src/dict.zig

(limited to 'src/dict.zig')

diff --git a/src/dict.zig b/src/dict.zig
new file mode 100644
index 0000000..a38d18d
--- /dev/null
+++ b/src/dict.zig
@@ -0,0 +1,143 @@
+const std = @import("std");
+const c = @import("c");
+
+const zpy = @import("root.zig");
+
+pub const Dict = extern struct {
+    const Self = @This();
+
+    data: c.PyObject,
+
+    pub const Key = union(enum) {
+        string: [*c]const u8,
+        object: *zpy.Object,
+    };
+
+    pub fn new() !*Self {
+        return @ptrCast(c.PyDict_New() orelse return error.Exception);
+    }
+
+    pub fn clear(self: *Self) void {
+        c.PyDict_Clear(self.object.ptr);
+    }
+
+    pub fn contains(self: *const Self, key: Key) bool {
+        return switch (key) {
+            .string => |str| c.PyDict_ContainsString(@ptrCast(self), str),
+            .object => |obj| c.PyDict_Contains(@ptrCast(self), @ptrCast(obj)),
+        } == 1;
+    }
+
+    pub fn copy(self: *const Self) *Self {
+        return @ptrCast(c.PyDict_Copy(@ptrCast(self)));
+    }
+
+    pub fn set(self: *Self, key: Key, value: zpy.Object) !void {
+        const ret = switch (key) {
+            .string => |str| c.PyDict_SetItemString(self.object.ptr, str, value.ptr),
+            .object => |obj| c.PyDict_SetItem(self.object.ptr, obj.ptr, value.ptr),
+        };
+
+        if (ret == -1) return error.Exception;
+    }
+
+    pub fn get(self: *const Self, key: Key) ?*zpy.Object {
+        return @ptrCast(switch (key) {
+            .string => |str| c.PyDict_GetItemString(@ptrCast(@constCast(self)), str),
+            .object => |obj| c.PyDict_GetItem(@ptrCast(@constCast(self)), @ptrCast(obj)),
+        });
+    }
+
+    pub fn delete(self: *Self, key: Key) !void {
+        const ret = switch (key) {
+            .string => |str| c.PyDict_DelItemString(@ptrCast(self), str),
+            .object => |obj| c.PyDict_DelItem(@ptrCast(self), @ptrCast(obj)),
+        };
+
+        if (ret == -1) return error.Exception;
+    }
+
+    pub fn setDefault(self: *Self, key: *zpy.Object, default: *zpy.Object) *zpy.Object {
+        return @ptrCast(c.PyDict_SetDefault(
+            @ptrCast(self),
+            @ptrCast(key),
+            @ptrCast(default),
+        ));
+    }
+
+    pub fn pop(self: *Self, key: Key) ?zpy.Object {
+        var result: ?*c.PyObject = undefined;
+
+        switch (key) {
+            .string => |str| c.PyDict_PopString(@ptrCast(self), str, &result),
+            .object => |obj| c.PyDict_Pop(@ptrCast(self), @ptrCast(obj), &result),
+        }
+
+        return result;
+    }
+
+    pub fn items(self: *const Self) zpy.List {
+        return @ptrCast(c.PyDict_Items(@ptrCast(@constCast(self))));
+    }
+
+    pub fn keys(self: *const Self) zpy.List {
+        return @ptrCast(c.PyDict_Keys(@ptrCast(@constCast(self))));
+    }
+
+    pub fn values(self: *const Self) zpy.List {
+        return @ptrCast(c.PyDict_Values(@ptrCast(@constCast(self))));
+    }
+
+    pub fn size(self: *const Self) usize {
+        return @intCast(c.PyDict_Size(@ptrCast(@constCast(self))));
+    }
+
+    pub const Iterator = struct {
+        dict: *Dict,
+        position: c.Py_ssize_t = 0,
+
+        pub const Pair = struct {
+            key: *zpy.Object,
+            value: *zpy.Object,
+        };
+
+        pub fn next(self: *@This()) ?Pair {
+            var pair: Pair = undefined;
+
+            if (c.PyDict_Next(
+                @ptrCast(self.dict),
+                &self.position,
+                @ptrCast(&pair.key),
+                @ptrCast(&pair.value),
+            ) == 1) {
+                return pair;
+            }
+
+            return null;
+        }
+    };
+
+    pub fn iterator(self: *Self) Iterator {
+        return .{ .dict = self };
+    }
+
+    pub fn merge(self: *Self, other: *Self) !void {
+        if (c.PyDict_Merge(
+            @ptrCast(self),
+            @ptrCast(other),
+            0,
+        ) == -1) {
+            return error.Exception;
+        }
+    }
+
+    pub fn update(self: *Self, other: *Self) !void {
+        if (c.PyDict_Merge(
+            @ptrCast(self),
+            @ptrCast(other),
+            1,
+        ) == -1) {
+            return error.Exception;
+        }
+    }
+};
-- 
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