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stage2: pointer reify

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This commit is contained in:
Robin Voetter 2022-01-03 01:56:59 +01:00
parent 41e52bd5cc
commit 7f77d3d671
1 changed files with 32 additions and 2 deletions
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34
src/Sema.zig
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@ -10269,11 +10269,41 @@ fn zirReify(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!Air.I
var buffer: Value.ToTypeBuffer = undefined;
const child_ty = child_val.toType(&buffer);
const ty = try Type.vector(sema.arena, len, child_ty);
const ty = try Type.vector(sema.arena, len, try child_ty.copy(sema.arena));
return sema.addType(ty);
},
.Float => return sema.fail(block, src, "TODO: Sema.zirReify for Float", .{}),
.Pointer => return sema.fail(block, src, "TODO: Sema.zirReify for Pointer", .{}),
.Pointer => {
const struct_val = union_val.val.castTag(.@"struct").?.data;
// TODO use reflection instead of magic numbers here
const size_val = struct_val[0];
const is_const_val = struct_val[1];
const is_volatile_val = struct_val[2];
const alignment_val = struct_val[3];
const address_space_val = struct_val[4];
const child_val = struct_val[5];
const is_allowzero_val = struct_val[6];
const sentinel_val = struct_val[7];
var buffer: Value.ToTypeBuffer = undefined;
const child_ty = child_val.toType(&buffer);
if (!sentinel_val.isNull()) {
return sema.fail(block, src, "TODO: implement zirReify for pointer with non-null sentinel", .{});
}
const ty = try Type.ptr(sema.arena, .{
.size = size_val.toEnum(std.builtin.TypeInfo.Pointer.Size),
.mutable = !is_const_val.toBool(),
.@"volatile" = is_volatile_val.toBool(),
.@"align" = @intCast(u8, alignment_val.toUnsignedInt()), // TODO: Validate this value.
.@"addrspace" = address_space_val.toEnum(std.builtin.AddressSpace),
.pointee_type = try child_ty.copy(sema.arena),
.@"allowzero" = is_allowzero_val.toBool(),
.sentinel = null,
});
return sema.addType(ty);
},
.Array => return sema.fail(block, src, "TODO: Sema.zirReify for Array", .{}),
.Struct => return sema.fail(block, src, "TODO: Sema.zirReify for Struct", .{}),
.Optional => return sema.fail(block, src, "TODO: Sema.zirReify for Optional", .{}),