authorgravatar for git@vexu.euVeikka Tuominen <git@vexu.eu> 2022-07-26 15:39:47+03:00
committergravatar for git@vexu.euVeikka Tuominen <git@vexu.eu> 2022-07-26 23:29:54+03:00
logd6e3988fe846864a33adf9f5f04d800718b31392
treee6678d0b0cc5c51f75112e19191de6d56dbe1914
parent7862ab9f410d20d0cfe799bf025f8cf57dd6f15a

Sema: better error when coercing error sets

14 files changed, 84 insertions(+), 76 deletions(-)

src/Sema.zig+12-6
......@@ -5496,7 +5496,7 @@ fn analyzeCall(
54965496 // TODO add error note: declared here
54975497 return sema.fail(
54985498 block,
5499 func_src,
5499 call_src,
55005500 "expected {d} argument(s), found {d}",
55015501 .{ fn_params_len, uncasted_args.len },
55025502 );
......@@ -21275,7 +21275,7 @@ fn coerceExtra(
2127521275 else => {},
2127621276 },
2127721277 .ErrorUnion => switch (inst_ty.zigTypeTag()) {
21278 .ErrorUnion => {
21278 .ErrorUnion => eu: {
2127921279 if (maybe_inst_val) |inst_val| {
2128021280 switch (inst_val.tag()) {
2128121281 .undef => return sema.addConstUndef(dest_ty),
......@@ -21284,7 +21284,10 @@ fn coerceExtra(
2128421284 inst_ty.errorUnionPayload(),
2128521285 inst_val.castTag(.eu_payload).?.data,
2128621286 );
21287 return sema.wrapErrorUnionPayload(block, dest_ty, payload, inst_src);
21287 return sema.wrapErrorUnionPayload(block, dest_ty, payload, inst_src) catch |err| switch (err) {
21288 error.NotCoercible => break :eu,
21289 else => |e| return e,
21290 };
2128821291 },
2128921292 else => {
2129021293 const error_set = try sema.addConstant(
......@@ -21303,9 +21306,12 @@ fn coerceExtra(
2130321306 .Undefined => {
2130421307 return sema.addConstUndef(dest_ty);
2130521308 },
21306 else => {
21309 else => eu: {
2130721310 // T to E!T
21308 return sema.wrapErrorUnionPayload(block, dest_ty, inst, inst_src);
21311 return sema.wrapErrorUnionPayload(block, dest_ty, inst, inst_src) catch |err| switch (err) {
21312 error.NotCoercible => break :eu,
21313 else => |e| return e,
21314 };
2130921315 },
2131021316 },
2131121317 .Union => switch (inst_ty.zigTypeTag()) {
......@@ -24795,7 +24801,7 @@ fn wrapErrorUnionPayload(
2479524801 inst_src: LazySrcLoc,
2479624802) !Air.Inst.Ref {
2479724803 const dest_payload_ty = dest_ty.errorUnionPayload();
24798 const coerced = try sema.coerce(block, dest_payload_ty, inst, inst_src);
24804 const coerced = try sema.coerceExtra(block, dest_payload_ty, inst, inst_src, false, false);
2479924805 if (try sema.resolveMaybeUndefVal(block, inst_src, coerced)) |val| {
2480024806 return sema.addConstant(dest_ty, try Value.Tag.eu_payload.create(sema.arena, val));
2480124807 }
test/cases/compile_errors/issue_2032_compile_diagnostic_string_for_top_level_decl_type.zig created+11
......@@ -0,0 +1,11 @@
1export fn entry() void {
2 var foo: u32 = @This(){};
3 _ = foo;
4}
5
6// error
7// backend=stage2
8// target=native
9//
10// :2:27: error: expected type 'u32', found 'tmp.tmp'
11// :1:1: note: struct declared here
test/cases/compile_errors/nested_error_set_mismatch.zig created+19
......@@ -0,0 +1,19 @@
1const NextError = error{NextError};
2const OtherError = error{OutOfMemory};
3
4export fn entry() void {
5 const a: ?NextError!i32 = foo();
6 _ = a;
7}
8
9fn foo() ?OtherError!i32 {
10 return null;
11}
12
13// error
14// backend=llvm
15// target=native
16//
17// :4:1: error: expected type '?error{NextError}!i32', found '?error{OutOfMemory}!i32'
18// :4:1: note: optional type child 'error{OutOfMemory}!i32' cannot cast into optional type child 'error{NextError}!i32'
19// :4:1: note: 'error.OutOfMemory' not a member of destination error set
test/cases/compile_errors/return_invalid_type_from_test.zig+1-1
......@@ -5,4 +5,4 @@ test "example" { return 1; }
55// target=native
66// is_test=1
77//
8// :1:25: error: expected type 'void', found 'comptime_int'
8// :1:25: error: expected type '@typeInfo(@typeInfo(@TypeOf(tmp.test.example)).Fn.return_type.?).ErrorUnion.error_set!void', found 'comptime_int'
\ No newline at end of file
test/cases/compile_errors/stage1/obj/issue_2032_compile_diagnostic_string_for_top_level_decl_type.zig deleted-10
......@@ -1,10 +0,0 @@
1export fn entry() void {
2 var foo: u32 = @This(){};
3 _ = foo;
4}
5
6// error
7// backend=stage1
8// target=native
9//
10// tmp.zig:2:27: error: type 'u32' does not support array initialization
test/cases/compile_errors/stage1/obj/nested_error_set_mismatch.zig deleted-20
......@@ -1,20 +0,0 @@
1const NextError = error{NextError};
2const OtherError = error{OutOfMemory};
3
4export fn entry() void {
5 const a: ?NextError!i32 = foo();
6 _ = a;
7}
8
9fn foo() ?OtherError!i32 {
10 return null;
11}
12
13// error
14// backend=stage1
15// target=native
16//
17// tmp.zig:5:34: error: expected type '?NextError!i32', found '?OtherError!i32'
18// tmp.zig:5:34: note: optional type child 'OtherError!i32' cannot cast into optional type child 'NextError!i32'
19// tmp.zig:5:34: note: error set 'OtherError' cannot cast into error set 'NextError'
20// tmp.zig:2:26: note: 'error.OutOfMemory' not a member of destination error set
test/cases/compile_errors/stage1/obj/std.fmt_error_for_unused_arguments.zig deleted-9
......@@ -1,9 +0,0 @@
1export fn entry() void {
2 @import("std").debug.print("{d} {d} {d} {d} {d}", .{1,2,3,4,5,6,7,8,9,10,11,12,13,14,15});
3}
4
5// error
6// backend=stage1
7// target=native
8//
9// ?:?:?: error: 10 unused arguments in '{d} {d} {d} {d} {d}'
test/cases/compile_errors/stage1/obj/wrong_number_of_arguments.zig deleted-10
......@@ -1,10 +0,0 @@
1export fn a() void {
2 c(1);
3}
4fn c(d: i32, e: i32, f: i32) void { _ = d; _ = e; _ = f; }
5
6// error
7// backend=stage1
8// target=native
9//
10// tmp.zig:2:6: error: expected 3 argument(s), found 1
test/cases/compile_errors/stage1/obj/wrong_types_given_to_atomic_order_args_in_cmpxchg.zig deleted-10
......@@ -1,10 +0,0 @@
1export fn entry() void {
2 var x: i32 = 1234;
3 while (!@cmpxchgWeak(i32, &x, 1234, 5678, @as(u32, 1234), @as(u32, 1234))) {}
4}
5
6// error
7// backend=stage1
8// target=native
9//
10// tmp.zig:3:47: error: expected type 'std.builtin.AtomicOrder', found 'u32'
test/cases/compile_errors/stage1/obj/wrong_types_given_to_export.zig deleted-10
......@@ -1,10 +0,0 @@
1fn entry() callconv(.C) void { }
2comptime {
3 @export(entry, .{.name = "entry", .linkage = @as(u32, 1234) });
4}
5
6// error
7// backend=stage1
8// target=native
9//
10// tmp.zig:3:59: error: expected type 'std.builtin.GlobalLinkage', found 'comptime_int'
test/cases/compile_errors/std.fmt_error_for_unused_arguments.zig created+9
......@@ -0,0 +1,9 @@
1export fn entry() void {
2 @import("std").debug.print("{d} {d} {d} {d} {d}", .{1,2,3,4,5,6,7,8,9,10,11,12,13,14,15});
3}
4
5// error
6// backend=llvm
7// target=native
8//
9// :?:?: error: 10 unused arguments in '{d} {d} {d} {d} {d}'
test/cases/compile_errors/wrong_number_of_arguments.zig created+10
......@@ -0,0 +1,10 @@
1export fn a() void {
2 c(1);
3}
4fn c(d: i32, e: i32, f: i32) void { _ = d; _ = e; _ = f; }
5
6// error
7// backend=stage2
8// target=native
9//
10// :2:6: error: expected 3 argument(s), found 1
test/cases/compile_errors/wrong_types_given_to_atomic_order_args_in_cmpxchg.zig created+11
......@@ -0,0 +1,11 @@
1export fn entry() void {
2 var x: i32 = 1234;
3 while (!@cmpxchgWeak(i32, &x, 1234, 5678, @as(u32, 1234), @as(u32, 1234))) {}
4}
5
6// error
7// backend=stage2
8// target=native
9//
10// :3:47: error: expected type 'builtin.AtomicOrder', found 'u32'
11// :?:?: note: enum declared here
test/cases/compile_errors/wrong_types_given_to_export.zig created+11
......@@ -0,0 +1,11 @@
1fn entry() callconv(.C) void { }
2comptime {
3 @export(entry, .{.name = "entry", .linkage = @as(u32, 1234) });
4}
5
6// error
7// backend=stage2
8// target=native
9//
10// :3:50: error: expected type 'builtin.GlobalLinkage', found 'u32'
11// :?:?: note: enum declared here