authorgravatar for git@vexu.euVeikka Tuominen <git@vexu.eu> 2020-08-24 16:05:34+03:00
committergravatar for andrew@ziglang.orgAndrew Kelley <andrew@ziglang.org> 2020-08-24 15:36:42-07:00
logbc1d55a1d19e1b4ad3826d58127396f27e96242c
tree56577fcb7dbb51bf2ac39c93c7a3ca4644070094
parent1520e084cb5fee08ddaf670046c38fd34d3d2cff

stage2: fix field access of array pointers

1 files changed, 29 insertions(+), 1 deletions(-)

src-self-hosted/zir_sema.zig+29-1
......@@ -908,6 +908,33 @@ fn analyzeInstFieldPtr(mod: *Module, scope: *Scope, fieldptr: *zir.Inst.FieldPtr
908908 );
909909 }
910910 },
911 .Pointer => {
912 const ptr_child = elem_ty.elemType();
913 switch (ptr_child.zigTypeTag()) {
914 .Array => {
915 if (mem.eql(u8, field_name, "len")) {
916 const len_payload = try scope.arena().create(Value.Payload.Int_u64);
917 len_payload.* = .{ .int = ptr_child.arrayLen() };
918
919 const ref_payload = try scope.arena().create(Value.Payload.RefVal);
920 ref_payload.* = .{ .val = Value.initPayload(&len_payload.base) };
921
922 return mod.constInst(scope, fieldptr.base.src, .{
923 .ty = Type.initTag(.single_const_pointer_to_comptime_int),
924 .val = Value.initPayload(&ref_payload.base),
925 });
926 } else {
927 return mod.fail(
928 scope,
929 fieldptr.positionals.field_name.src,
930 "no member named '{}' in '{}'",
931 .{ field_name, elem_ty },
932 );
933 }
934 },
935 else => {},
936 }
937 },
911938 .Type => {
912939 _ = try mod.resolveConstValue(scope, object_ptr);
913940 const result = try mod.analyzeDeref(scope, fieldptr.base.src, object_ptr, object_ptr.src);
......@@ -940,8 +967,9 @@ fn analyzeInstFieldPtr(mod: *Module, scope: *Scope, fieldptr: *zir.Inst.FieldPtr
940967 else => return mod.fail(scope, fieldptr.base.src, "type '{}' does not support field access", .{child_type}),
941968 }
942969 },
943 else => return mod.fail(scope, fieldptr.base.src, "type '{}' does not support field access", .{elem_ty}),
970 else => {},
944971 }
972 return mod.fail(scope, fieldptr.base.src, "type '{}' does not support field access", .{elem_ty});
945973}
946974
947975fn analyzeInstIntCast(mod: *Module, scope: *Scope, inst: *zir.Inst.BinOp) InnerError!*Inst {