Commit 82a6acca93683fa7272976879f338a0e66e3f82b | zig

Closes #15157

2 files changed, 32 insertions(+), 0 deletions(-)

src/Sema.zig+20

...	@@ -9963,6 +9963,26 @@ fn zirSwitchCapture(	...	@@ -9963,6 +9963,26 @@ fn zirSwitchCapture(
9963	const field_index = @intCast(u32, operand_ty.unionTagFieldIndex(item_val, sema.mod).?);	9963	const field_index = @intCast(u32, operand_ty.unionTagFieldIndex(item_val, sema.mod).?);
9964	const union_obj = operand_ty.cast(Type.Payload.Union).?.data;	9964	const union_obj = operand_ty.cast(Type.Payload.Union).?.data;
9965	const field_ty = union_obj.fields.values()[field_index].ty;	9965	const field_ty = union_obj.fields.values()[field_index].ty;
		9966	if (try sema.resolveDefinedValue(block, sema.src, operand_ptr)) \|union_val\| {
		9967	if (is_ref) {
		9968	const ptr_field_ty = try Type.ptr(sema.arena, sema.mod, .{
		9969	.pointee_type = field_ty,
		9970	.mutable = operand_ptr_ty.ptrIsMutable(),
		9971	.@"volatile" = operand_ptr_ty.isVolatilePtr(),
		9972	.@"addrspace" = operand_ptr_ty.ptrAddressSpace(),
		9973	});
		9974	return sema.addConstant(
		9975	ptr_field_ty,
		9976	try Value.Tag.field_ptr.create(sema.arena, .{
		9977	.container_ptr = union_val,
		9978	.container_ty = operand_ty,
		9979	.field_index = field_index,
		9980	}),
		9981	);
		9982	}
		9983	const tag_and_val = union_val.castTag(.@"union").?.data;
		9984	return sema.addConstant(field_ty, tag_and_val.val);
		9985	}
9966	if (is_ref) {	9986	if (is_ref) {
9967	const ptr_field_ty = try Type.ptr(sema.arena, sema.mod, .{	9987	const ptr_field_ty = try Type.ptr(sema.arena, sema.mod, .{
9968	.pointee_type = field_ty,	9988	.pointee_type = field_ty,

test/behavior/switch.zig+12

...	@@ -694,3 +694,15 @@ test "switch item sizeof" {	...	@@ -694,3 +694,15 @@ test "switch item sizeof" {
694	try S.doTheTest();	694	try S.doTheTest();
695	comptime try S.doTheTest();	695	comptime try S.doTheTest();
696	}	696	}
		697
		698	test "comptime inline switch" {
		699	const U = union(enum) { a: type, b: type };
		700	const value = comptime blk: {
		701	var u: U = .{ .a = u32 };
		702	break :blk switch (u) {
		703	inline .a, .b => \|v\| v,
		704	};
		705	};
		706
		707	try expectEqual(u32, value);
		708	}