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std meta: fix use of alignOf in meta.cast

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Lachlan Easton 2020-09-03 20:16:12 +10:00 committed by Andrew Kelley
parent 39a80cf59e
commit 2a58e30bd5
1 changed files with 8 additions and 8 deletions
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16
lib/std/meta.zig
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@ -705,34 +705,34 @@ pub fn Vector(comptime len: u32, comptime child: type) type {
pub fn cast(comptime DestType: type, target: anytype) DestType {
const TargetType = @TypeOf(target);
switch (@typeInfo(DestType)) {
.Pointer => {
.Pointer => |dest_ptr| {
switch (@typeInfo(TargetType)) {
.Int, .ComptimeInt => {
return @intToPtr(DestType, target);
},
.Pointer => |ptr| {
return @ptrCast(DestType, @alignCast(ptr.alignment, target));
return @ptrCast(DestType, @alignCast(dest_ptr.alignment, target));
},
.Optional => |opt| {
if (@typeInfo(opt.child) == .Pointer) {
return @ptrCast(DestType, @alignCast(@alignOf(opt.child.Child), target));
return @ptrCast(DestType, @alignCast(dest_ptr, target));
}
},
else => {},
}
},
.Optional => |opt| {
if (@typeInfo(opt.child) == .Pointer) {
.Optional => |dest_opt| {
if (@typeInfo(dest_opt.child) == .Pointer) {
switch (@typeInfo(TargetType)) {
.Int, .ComptimeInt => {
return @intToPtr(DestType, target);
},
.Pointer => |ptr| {
return @ptrCast(DestType, @alignCast(ptr.alignment, target));
.Pointer => {
return @ptrCast(DestType, @alignCast(@alignOf(dest_opt.child.Child), target));
},
.Optional => |target_opt| {
if (@typeInfo(target_opt.child) == .Pointer) {
return @ptrCast(DestType, @alignCast(@alignOf(target_opt.child.Child), target));
return @ptrCast(DestType, @alignCast(@alignOf(dest_opt.child.Child), target));
}
},
else => {},