| author |  Veikka Tuominen <git@vexu.eu> 2024-05-27 13:24:43+03:00 |
| committer | Veikka Tuominen <git@vexu.eu> 2024-06-02 21:42:13+03:00 |
| log | 17a0458e530242254f21fc0b6825e1303ec06028 |
| tree | bc7ab6012b943d6f6435351555ed0f6ee3d3429b |
| parent | 2cf8e73781b81f38c50a40b42cad49242ef7c98b |
Sema: add missing error for runtime `@ptrFromInt` to comptime-only type
Closes #200832 files changed, 25 insertions(+), 0 deletions(-)
src- test
- cases
- compile_errors
src/Sema.zig+9
| ... | ... | @@ -22722,7 +22722,16 @@ fn zirPtrFromInt(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError! |
| 22722 | 22722 | .storage = .{ .elems = new_elems }, |
| 22723 | 22723 | } })); |
| 22724 | 22724 | } |
| 22725 | if (try sema.typeRequiresComptime(ptr_ty)) { | |
| 22726 | return sema.failWithOwnedErrorMsg(block, msg: { | |
| 22727 | const msg = try sema.errMsg(block, src, "pointer to comptime-only type '{}' must be comptime-known, but operand is runtime-known", .{ptr_ty.fmt(mod)}); | |
| 22728 | errdefer msg.destroy(sema.gpa); | |
| 22725 | 22729 | |
| 22730 | const src_decl = mod.declPtr(block.src_decl); | |
| 22731 | try sema.explainWhyTypeIsComptime(msg, src_decl.toSrcLoc(src, mod), ptr_ty); | |
| 22732 | break :msg msg; | |
| 22733 | }); | |
| 22734 | } | |
| 22726 | 22735 | try sema.requireRuntimeBlock(block, src, operand_src); |
| 22727 | 22736 | if (!is_vector) { |
| 22728 | 22737 | if (block.wantSafety() and (try sema.typeHasRuntimeBits(elem_ty) or elem_ty.zigTypeTag(mod) == .Fn)) { |
test/cases/compile_errors/runtime_@ptrFromInt_to_comptime_only_type.zig created+16
| ... | ... | @@ -0,0 +1,16 @@ |
| 1 | const GuSettings = struct { | |
| 2 | fin: ?fn (c_int) callconv(.C) void, | |
| 3 | }; | |
| 4 | pub export fn callbackFin(id: c_int, arg: ?*anyopaque) void { | |
| 5 | const settings: ?*GuSettings = @as(?*GuSettings, @ptrFromInt(@intFromPtr(arg))); | |
| 6 | if (settings.?.fin != null) { | |
| 7 | settings.?.fin.?(id & 0xffff); | |
| 8 | } | |
| 9 | } | |
| 10 | ||
| 11 | // error | |
| 12 | // target=native | |
| 13 | // | |
| 14 | // :5:54: error: pointer to comptime-only type '?*tmp.GuSettings' must be comptime-known, but operand is runtime-known | |
| 15 | // :2:10: note: struct requires comptime because of this field | |
| 16 | // :2:10: note: use '*const fn (c_int) callconv(.C) void' for a function pointer type |