diff options
Diffstat (limited to 'src/Sema.zig')
| -rw-r--r-- | src/Sema.zig | 207 |
1 files changed, 193 insertions, 14 deletions
diff --git a/src/Sema.zig b/src/Sema.zig index 24faa946c4..d414bfc1ce 100644 --- a/src/Sema.zig +++ b/src/Sema.zig @@ -29126,20 +29126,7 @@ fn resolveStructLayout(sema: *Sema, ty: Type) CompileError!void { } struct_obj.status = .have_layout; - - // In case of querying the ABI alignment of this struct, we will ask - // for hasRuntimeBits() of each field, so we need "requires comptime" - // to be known already before this function returns. - for (struct_obj.fields.values()) |field, i| { - _ = sema.typeRequiresComptime(field.ty) catch |err| switch (err) { - error.AnalysisFail => { - const msg = sema.err orelse return err; - try sema.addFieldErrNote(ty, i, msg, "while checking this field", .{}); - return err; - }, - else => return err, - }; - } + _ = try sema.resolveTypeRequiresComptime(resolved_ty); } // otherwise it's a tuple; no need to resolve anything } @@ -29303,6 +29290,198 @@ fn resolveUnionLayout(sema: *Sema, ty: Type) CompileError!void { }; } union_obj.status = .have_layout; + _ = try sema.resolveTypeRequiresComptime(resolved_ty); +} + +// In case of querying the ABI alignment of this struct, we will ask +// for hasRuntimeBits() of each field, so we need "requires comptime" +// to be known already before this function returns. +pub fn resolveTypeRequiresComptime(sema: *Sema, ty: Type) CompileError!bool { + return switch (ty.tag()) { + .u1, + .u8, + .i8, + .u16, + .i16, + .u29, + .u32, + .i32, + .u64, + .i64, + .u128, + .i128, + .usize, + .isize, + .c_short, + .c_ushort, + .c_int, + .c_uint, + .c_long, + .c_ulong, + .c_longlong, + .c_ulonglong, + .c_longdouble, + .f16, + .f32, + .f64, + .f80, + .f128, + .anyopaque, + .bool, + .void, + .anyerror, + .noreturn, + .@"anyframe", + .null, + .undefined, + .atomic_order, + .atomic_rmw_op, + .calling_convention, + .address_space, + .float_mode, + .reduce_op, + .call_options, + .prefetch_options, + .export_options, + .extern_options, + .manyptr_u8, + .manyptr_const_u8, + .manyptr_const_u8_sentinel_0, + .const_slice_u8, + .const_slice_u8_sentinel_0, + .anyerror_void_error_union, + .empty_struct_literal, + .empty_struct, + .error_set, + .error_set_single, + .error_set_inferred, + .error_set_merged, + .@"opaque", + .generic_poison, + .array_u8, + .array_u8_sentinel_0, + .int_signed, + .int_unsigned, + .enum_simple, + => false, + + .single_const_pointer_to_comptime_int, + .type, + .comptime_int, + .comptime_float, + .enum_literal, + .type_info, + // These are function bodies, not function pointers. + .fn_noreturn_no_args, + .fn_void_no_args, + .fn_naked_noreturn_no_args, + .fn_ccc_void_no_args, + .function, + => true, + + .var_args_param => unreachable, + .inferred_alloc_mut => unreachable, + .inferred_alloc_const => unreachable, + .bound_fn => unreachable, + + .array, + .array_sentinel, + .vector, + => return sema.resolveTypeRequiresComptime(ty.childType()), + + .pointer, + .single_const_pointer, + .single_mut_pointer, + .many_const_pointer, + .many_mut_pointer, + .c_const_pointer, + .c_mut_pointer, + .const_slice, + .mut_slice, + => { + const child_ty = ty.childType(); + if (child_ty.zigTypeTag() == .Fn) { + return child_ty.fnInfo().is_generic; + } else { + return sema.resolveTypeRequiresComptime(child_ty); + } + }, + + .optional, + .optional_single_mut_pointer, + .optional_single_const_pointer, + => { + var buf: Type.Payload.ElemType = undefined; + return sema.resolveTypeRequiresComptime(ty.optionalChild(&buf)); + }, + + .tuple, .anon_struct => { + const tuple = ty.tupleFields(); + for (tuple.types) |field_ty, i| { + const have_comptime_val = tuple.values[i].tag() != .unreachable_value; + if (!have_comptime_val and try sema.resolveTypeRequiresComptime(field_ty)) { + return true; + } + } + return false; + }, + + .@"struct" => { + const struct_obj = ty.castTag(.@"struct").?.data; + switch (struct_obj.requires_comptime) { + .no, .wip => return false, + .yes => return true, + .unknown => { + var requires_comptime = false; + struct_obj.requires_comptime = .wip; + for (struct_obj.fields.values()) |field| { + if (try sema.resolveTypeRequiresComptime(field.ty)) requires_comptime = true; + } + if (requires_comptime) { + struct_obj.requires_comptime = .yes; + } else { + struct_obj.requires_comptime = .no; + } + return requires_comptime; + }, + } + }, + + .@"union", .union_safety_tagged, .union_tagged => { + const union_obj = ty.cast(Type.Payload.Union).?.data; + switch (union_obj.requires_comptime) { + .no, .wip => return false, + .yes => return true, + .unknown => { + var requires_comptime = false; + union_obj.requires_comptime = .wip; + for (union_obj.fields.values()) |field| { + if (try sema.resolveTypeRequiresComptime(field.ty)) requires_comptime = true; + } + if (requires_comptime) { + union_obj.requires_comptime = .yes; + } else { + union_obj.requires_comptime = .no; + } + return requires_comptime; + }, + } + }, + + .error_union => return sema.resolveTypeRequiresComptime(ty.errorUnionPayload()), + .anyframe_T => { + const child_ty = ty.castTag(.anyframe_T).?.data; + return sema.resolveTypeRequiresComptime(child_ty); + }, + .enum_numbered => { + const tag_ty = ty.castTag(.enum_numbered).?.data.tag_ty; + return sema.resolveTypeRequiresComptime(tag_ty); + }, + .enum_full, .enum_nonexhaustive => { + const tag_ty = ty.cast(Type.Payload.EnumFull).?.data.tag_ty; + return sema.resolveTypeRequiresComptime(tag_ty); + }, + }; } /// Returns `error.AnalysisFail` if any of the types (recursively) failed to |