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Remove the failed closure to enable tests to run.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,71 +1,71 @@ | ||
| //! Extensions for various things you might find useful from other languages. | ||
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| const std = @import("std"); | ||
| const assert = std.debug.assert; | ||
| // const std = @import("std"); | ||
| // const assert = std.debug.assert; | ||
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| pub fn closure(bindings: anytype) ClosureInternal(@TypeOf(bindings)) { | ||
| return ClosureInternal(@TypeOf(bindings)){ .ctx = bindings }; | ||
| } | ||
| // pub fn closure(bindings: anytype) ClosureInternal(@TypeOf(bindings)) { | ||
| // return ClosureInternal(@TypeOf(bindings)){ .ctx = bindings }; | ||
| // } | ||
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| fn ClosureInternal(comptime Spec: type) type { | ||
| comptime { | ||
| const spec_tinfo = @typeInfo(Spec); | ||
| assert(spec_tinfo == .Struct); | ||
| // fn ClosureInternal(comptime Spec: type) type { | ||
| // comptime { | ||
| // const spec_tinfo = @typeInfo(Spec); | ||
| // assert(spec_tinfo == .Struct); | ||
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| for (spec_tinfo.Struct.fields) |field| { | ||
| assert(field.default_value == null); | ||
| } | ||
| // for (spec_tinfo.Struct.fields) |field| { | ||
| // assert(field.default_value == null); | ||
| // } | ||
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| assert(spec_tinfo.Struct.decls.len == 1); | ||
| const call_decl = spec_tinfo.Struct.decls[0]; | ||
| assert(call_decl.is_pub); | ||
| assert(std.mem.eql(u8, call_decl.name, "call")); | ||
| // assert(spec_tinfo.Struct.decls.len == 1); | ||
| // const call_decl = spec_tinfo.Struct.decls[0]; | ||
| // // assert(call_decl.is_pub); | ||
| // assert(std.mem.eql(u8, call_decl.name, "call")); | ||
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| const call = Spec.call; | ||
| const call_tinfo = @typeInfo(@TypeOf(call)); | ||
| assert(call_tinfo == .Fn); | ||
| assert(!call_tinfo.Fn.is_generic); | ||
| assert(call_tinfo.Fn.params.len >= 1); | ||
| assert(call_tinfo.Fn.params[0].type.? == *const Spec); | ||
| // const call = Spec.call; | ||
| // const call_tinfo = @typeInfo(@TypeOf(call)); | ||
| // assert(call_tinfo == .Fn); | ||
| // assert(!call_tinfo.Fn.is_generic); | ||
| // assert(call_tinfo.Fn.params.len >= 1); | ||
| // assert(call_tinfo.Fn.params[0].type.? == *const Spec); | ||
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| var arg_types: [call_tinfo.Fn.params.len - 1]type = undefined; | ||
| for (call_tinfo.Fn.params[1..], 0..) |arg, i| { | ||
| arg_types[i] = arg.type.?; | ||
| } | ||
| // var arg_types: [call_tinfo.Fn.params.len - 1]type = undefined; | ||
| // for (call_tinfo.Fn.params[1..], 0..) |arg, i| { | ||
| // arg_types[i] = arg.type.?; | ||
| // } | ||
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| const RetType = call_tinfo.Fn.return_type.?; | ||
| // const RetType = call_tinfo.Fn.return_type.?; | ||
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| return Closure(Spec, arg_types[0..], RetType); | ||
| } | ||
| } | ||
| // return Closure(Spec, arg_types[0..], RetType); | ||
| // } | ||
| // } | ||
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| pub fn Closure(comptime Ctx: type, comptime arg_types: []type, comptime RetType: type) type { | ||
| return struct { | ||
| ctx: Ctx, | ||
| // pub fn Closure(comptime Ctx: type, comptime arg_types: []type, comptime RetType: type) type { | ||
| // return struct { | ||
| // ctx: Ctx, | ||
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| pub fn call(self: *const @This(), args: anytype) RetType { | ||
| comptime { | ||
| assert(args.len == arg_types.len); | ||
| for (args, 0..) |_, i| { | ||
| assert(@TypeOf(args[i]) == arg_types[i]); | ||
| } | ||
| } | ||
| return @call(.auto, Ctx.call, .{&self.ctx} ++ args); | ||
| } | ||
| }; | ||
| } | ||
| // pub fn call(self: *const @This(), args: anytype) RetType { | ||
| // comptime { | ||
| // assert(args.len == arg_types.len); | ||
| // for (args, 0..) |_, i| { | ||
| // assert(@TypeOf(args[i]) == arg_types[i]); | ||
| // } | ||
| // } | ||
| // return @call(.auto, Ctx.call, .{&self.ctx} ++ args); | ||
| // } | ||
| // }; | ||
| // } | ||
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| test "closures" { | ||
| var x: i32 = 60; | ||
| // test "closures" { | ||
| // var x: i32 = 60; | ||
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| const foo = closure(struct { | ||
| x: *i32, | ||
| pub fn call(self: *const @This(), y: i32) i32 { | ||
| self.x.* += y; | ||
| return 420; | ||
| } | ||
| }{ .x = &x }); | ||
| // const foo = closure(struct { | ||
| // x: *i32, | ||
| // pub fn call(self: *const @This(), y: i32) i32 { | ||
| // self.x.* += y; | ||
| // return 420; | ||
| // } | ||
| // }{ .x = &x }); | ||
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| assert(foo.call(.{@as(i32, 9)}) == 420); | ||
| assert(x == 69); | ||
| } | ||
| // assert(foo.call(.{@as(i32, 9)}) == 420); | ||
| // assert(x == 69); | ||
| // } |