2 files changed, 133 insertions, 0 deletions
diff --git a/src/sequence/fast.zig b/src/sequence/fast.zig
new file mode 100644
index 0000000..07f5de6
--- /dev/null
+++ b/src/sequence/fast.zig
@@ -0,0 +1,20 @@
+const c = @import("c");
+const zpy = @import("../root.zig");
+
+pub const Fast = extern struct {
+    const Self = @This();
+
+    data: c.PyObject,
+
+    pub fn size(self: *Self) !usize {
+        return @intCast(c.PySequence_Fast_GET_SIZE(@ptrCast(self)));
+    }
+
+    pub fn get(self: *Self, index: usize) *zpy.Object {
+        return @ptrCast(c.PySequence_Fast_GET_ITEM(@ptrCast(self), @intCast(index)) orelse return error.Exception);
+    }
+
+    pub fn items(self: *Self) [*:null][*c]zpy.Object {
+        return @ptrCast(c.PySequence_Fast_ITEMS(@ptrCast(self)));
+    }
+};
diff --git a/src/sequence/root.zig b/src/sequence/root.zig
new file mode 100644
index 0000000..107233b
--- /dev/null
+++ b/src/sequence/root.zig
@@ -0,0 +1,113 @@
+const c = @import("c");
+const zpy = @import("../root.zig");
+
+pub const Sequence = extern struct {
+    const Self = @This();
+    pub const Fast = @import("fast.zig").Fast;
+
+    data: c.PyObject,
+
+    pub fn size(self: *Self) usize {
+        return @intCast(c.PySequence_Size(@ptrCast(self)));
+    }
+
+    pub fn concat(self: *Self, tail: *Self) !*Self {
+        return @ptrCast(c.PySequence_Concat(
+            @ptrCast(self),
+            @ptrCast(tail),
+        ) orelse return error.Exception);
+    }
+
+    pub fn repeat(self: *Self, n: usize) !*Self {
+        return @ptrCast(c.PySequence_Repeat(
+            @ptrCast(self),
+            @intCast(n),
+        ) orelse return error.Exception);
+    }
+
+    pub fn inPlaceConcat(self: *Self, tail: *Self) !*Self {
+        return @ptrCast(c.PySequence_InPlaceConcat(
+            @ptrCast(self),
+            @ptrCast(tail),
+        ) orelse return error.Exception);
+    }
+
+    pub fn inPlaceRepeat(self: *Self, n: usize) !*Self {
+        return @ptrCast(c.PySequence_InPlaceRepeat(
+            @ptrCast(self),
+            @intCast(n),
+        ) orelse return error.Exception);
+    }
+
+    pub fn get(self: *Self, index: usize) ?*zpy.Object {
+        return @ptrCast(c.PySequence_GetItem(@ptrCast(self), @intCast(index)));
+    }
+
+    pub fn getSlice(self: *Self, from: usize, to: usize) ?*Self {
+        return @ptrCast(c.PySequence_GetSlice(@ptrCast(self), @intCast(from), @intCast(to)));
+    }
+
+    pub fn set(self: *Self, index: usize, value: *zpy.Object) !void {
+        if (c.PySequence_SetItem(@ptrCast(self), @intCast(index), @ptrCast(value)) == -1) {
+            return error.Exception;
+        }
+    }
+
+    pub fn delete(self: *Self, index: usize) !void {
+        if (c.PySequence_DelItem(@ptrCast(self), @intCast(index)) == -1) {
+            return error.Exception;
+        }
+    }
+
+    pub fn deleteSlice(self: *Self, from: usize, to: usize) !void {
+        if (c.PySequence_DelSlice(@ptrCast(self), @intCast(from), @intCast(to)) == -1) {
+            return error.Exception;
+        }
+    }
+
+    pub fn count(self: *const Self, value: *zpy.Object) !usize {
+        const result = c.PySequence_Count(@ptrCast(@constCast(self)), @ptrCast(value));
+
+        if (result == -1) {
+            return error.Exception;
+        }
+
+        return result;
+    }
+
+    pub fn contains(self: *const Self, value: *zpy.Object) !bool {
+        const result = c.PySequence_Contains(@ptrCast(@constCast(self)), @ptrCast(value));
+
+        if (result == -1) {
+            return error.Exception;
+        }
+
+        return result != 0;
+    }
+
+    pub fn indexOf(self: *const Self, value: *zpy.Object) !usize {
+        const index = c.PySequence_Index(@ptrCast(@constCast(self)), @ptrCast(value));
+
+        if (index == -1) {
+            return error.Exception;
+        }
+
+        return index;
+    }
+
+    pub fn toList(self: *Self) !*zpy.List {
+        return @ptrCast(c.PySequence_List(@ptrCast(self)) orelse return error.Exception);
+    }
+
+    pub fn toTuple(self: *Self) !*zpy.Tuple {
+        return @ptrCast(c.PySequence_Tuple(@ptrCast(self)) orelse return error.Exception);
+    }
+
+    pub fn asFast(self: *Self) !*Fast {
+        return @ptrCast(c.PySequence_Fast(@ptrCast(self), null) orelse return error.Exception);
+    }
+
+    pub fn asObject(self: *Self) *zpy.Object {
+        return @ptrCast(self);
+    }
+};