2 files changed, 11 insertions, 17 deletions

diff --git a/query.zig b/query.zig
index 99f8bcd..6663f52 100644
--- a/query.zig
+++ b/query.zig
@@ -22,12 +22,6 @@ pub const ParsedQuery = struct {
     query_size: usize,
 
     pub fn from(comptime query: []const u8) Self {
-        const State = enum {
-            Start,
-            BindMarker,
-            BindMarkerType,
-        };
-
         comptime var buf: [query.len]u8 = undefined;
         comptime var pos = 0;
         comptime var state = .Start;
@@ -38,7 +32,7 @@ pub const ParsedQuery = struct {
         comptime var parsed_query: ParsedQuery = undefined;
         parsed_query.nb_bind_markers = 0;
 
-        inline for (query) |c, i| {
+        inline for (query) |c| {
             switch (state) {
                 .Start => switch (c) {
                     '?' => {
@@ -71,7 +65,7 @@ pub const ParsedQuery = struct {
                     '}' => {
                         state = .Start;
 
-                        const typ = parsed_query.parseType(current_bind_marker_type[0..current_bind_marker_type_pos]);
+                        const typ = parseType(current_bind_marker_type[0..current_bind_marker_type_pos]);
 
                         parsed_query.bind_markers[parsed_query.nb_bind_markers] = BindMarker{ .Typed = typ };
                         parsed_query.nb_bind_markers += 1;
@@ -103,7 +97,7 @@ pub const ParsedQuery = struct {
         return parsed_query;
     }
 
-    fn parseType(comptime self: *Self, type_info: []const u8) type {
+    fn parseType(type_info: []const u8) type {
         if (type_info.len <= 0) @compileError("invalid type info " ++ type_info);
 
         // Integer
diff --git a/sqlite.zig b/sqlite.zig
index 143c279..3c2471d 100644
--- a/sqlite.zig
+++ b/sqlite.zig
@@ -243,6 +243,9 @@ pub const DetailedError = struct {
     message: []const u8,
 
     pub fn format(self: @This(), comptime fmt: []const u8, options: std.fmt.FormatOptions, writer: anytype) !void {
+        _ = fmt;
+        _ = options;
+
         _ = try writer.print("{{code: {}, message: {s}}}", .{ self.code, self.message });
     }
 };
@@ -443,7 +446,7 @@ pub const Db = struct {
     }
 
     /// prepareWithDiags is like `prepare` but takes an additional options argument.
-    pub fn prepareWithDiags(self: *Self, comptime query: []const u8, options: QueryOptions) !comptime blk: {
+    pub fn prepareWithDiags(self: *Self, comptime query: []const u8, options: QueryOptions) !blk: {
         @setEvalBranchQuota(100000);
         break :blk Statement(.{}, ParsedQuery.from(query));
     } {
@@ -466,7 +469,7 @@ pub const Db = struct {
     /// This is done because we type check the bind parameters when executing the statement later.
     ///
     /// If you want additional error information in case of failures, use `prepareWithDiags`.
-    pub fn prepare(self: *Self, comptime query: []const u8) !comptime blk: {
+    pub fn prepare(self: *Self, comptime query: []const u8) !blk: {
         @setEvalBranchQuota(100000);
         break :blk Statement(.{}, ParsedQuery.from(query));
     } {
@@ -732,12 +735,6 @@ pub fn Iterator(comptime Type: type) type {
         // The options must contain an `allocator` field which will be used to create a copy of the data.
         fn readBytes(self: *Self, comptime BytesType: type, allocator: *mem.Allocator, _i: usize, comptime mode: ReadBytesMode) !BytesType {
             const i = @intCast(c_int, _i);
-            const type_info = @typeInfo(BytesType);
-
-            var ret: BytesType = switch (BytesType) {
-                Text, Blob => .{ .data = "" },
-                else => try dupeWithSentinel(BytesType, allocator, ""),
-            };
 
             switch (mode) {
                 .Blob => {
@@ -918,6 +915,8 @@ pub const StatementOptions = struct {};
 /// Look at each function for more complete documentation.
 ///
 pub fn Statement(comptime opts: StatementOptions, comptime query: ParsedQuery) type {
+    _ = opts;
+
     return struct {
         const Self = @This();
 
@@ -1245,6 +1244,7 @@ fn addTestData(db: *Db) !void {
 
 test "sqlite: db init" {
     var db = try getTestDb();
+    _ = db;
 }
 
 test "sqlite: db pragma" {