impl/memory: Implement Queries

impl/memory/error_markers.go

Index: impl/memory/error_markers.go
diff --git a/impl/memory/error_markers.go b/impl/memory/error_markers.go
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index 0000000000000000000000000000000000000000..2c40fd7e8c338bdc96a48225807b6730aa2858d7
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+++ b/impl/memory/error_markers.go
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+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package memory
+
+// memoryCorruption is a marker function to indicate that given error is
+// actually due to corrupted memory to make it easier to read the code.
+func memoryCorruption(err error) {
+	if err != nil {
+		panic(err)
+	}
+}
+
+// impossible is a marker function to indicate that the given error is an
+// impossible state, due to conditions outside of the function.
+func impossible(err error) {
+	if err != nil {
+		panic(err)
+	}
+}