Dusk (#715)

Co-authored-by: Stephen Gutekanst <stephen@hexops.com>

libs/dusk/src/main.zig

@@ -0,0 +1,61 @@
+const std = @import("std");
+
+pub const Ast = @import("Ast.zig");
+pub const Analyse = @import("Analyse.zig");
+pub const Parser = @import("Parser.zig");
+pub const Token = @import("Token.zig");
+pub const Tokenizer = @import("Tokenizer.zig");
+
+pub const Extension = enum {
+    f16,
+
+    pub const Array = std.enums.EnumArray(Extension, bool);
+};
+
+pub const ErrorMsg = struct {
+    loc: Token.Loc,
+    msg: []const u8,
+    note: ?Note,
+
+    pub const Note = struct {
+        loc: ?Token.Loc,
+        msg: []const u8,
+
+        pub fn create(
+            allocator: std.mem.Allocator,
+            loc: ?Token.Loc,
+            comptime format: []const u8,
+            args: anytype,
+        ) !Note {
+            return .{
+                .loc = loc,
+                .msg = try std.fmt.allocPrint(allocator, comptime format, args),
+            };
+        }
+
+        pub fn deinit(note: *Note, allocator: std.mem.Allocator) void {
+            allocator.free(note.msg);
+            note.* = undefined;
+        }
+    };
+
+    pub fn create(
+        allocator: std.mem.Allocator,
+        loc: Token.Loc,
+        comptime format: []const u8,
+        args: anytype,
+        note: ?Note,
+    ) !ErrorMsg {
+        return .{
+            .loc = loc,
+            .msg = try std.fmt.allocPrint(allocator, comptime format, args),
+            .note = note,
+        };
+    }
+
+    pub fn deinit(err_msg: *ErrorMsg, allocator: std.mem.Allocator) void {
+        if (err_msg.note) |*note| note.*.deinit(allocator);
+        allocator.free(err_msg.msg);
+        err_msg.* = undefined;
+    }
+};