implement `==`

1 files changed, 3 insertions, 0 deletions

diff --git a/src/parse.zig b/src/parse.zig
index e22397f..3ecb93b 100644
--- a/src/parse.zig
+++ b/src/parse.zig
@@ -122,6 +122,7 @@ pub const Expr = struct {
                 right_angle,
                 left_angle_equal,
                 right_angle_equal,
+                equal_equal,
 
                 pub fn format(self: Op, comptime _: []const u8, _: std.fmt.FormatOptions, writer: anytype) !void {
                     try writer.writeAll(switch (self) {
@@ -131,6 +132,7 @@ pub const Expr = struct {
                         .right_angle => ">",
                         .left_angle_equal => "<=",
                         .right_angle_equal => ">=",
+                        .equal_equal => "==",
                     });
                 }
             };
@@ -298,6 +300,7 @@ fn parseComparisons(allocator: Allocator, lexer: *Lexer) ParseError!*Expr {
         .right_angle => .right_angle,
         .left_angle_equal => .left_angle_equal,
         .right_angle_equal => .right_angle_equal,
+        .equal_equal => .equal_equal,
         else => return lhs,
     };
     _ = lexer.next();