First pass at making the compilers open-sourcable.

	Change on 2014/12/10 by nnoble <nnoble@google.com>
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=81829127

1 files changed, 106 insertions, 0 deletions

diff --git a/src/compiler/cpp_generator_helpers.h b/src/compiler/cpp_generator_helpers.h
new file mode 100644
index 0000000000..8d8b03ea43
--- /dev/null
+++ b/src/compiler/cpp_generator_helpers.h
@@ -0,0 +1,106 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef NET_GRPC_COMPILER_CPP_GENERATOR_HELPERS_H__
+#define NET_GRPC_COMPILER_CPP_GENERATOR_HELPERS_H__
+
+#include <map>
+#include <string>
+#include <google/protobuf/descriptor.h>
+#include <google/protobuf/descriptor.pb.h>
+
+using namespace std;
+
+namespace grpc_cpp_generator {
+
+inline bool StripSuffix(string* filename, const string& suffix) {
+  if (filename->length() >= suffix.length()) {
+    size_t suffix_pos = filename->length() - suffix.length();
+    if (filename->compare(suffix_pos, string::npos, suffix) == 0) {
+      filename->resize(filename->size() - suffix.size());
+      return true;
+    }
+  }
+
+  return false;
+}
+
+inline string StripProto(string filename) {
+  if (!StripSuffix(&filename, ".protodevel")) {
+    StripSuffix(&filename, ".proto");
+  }
+  return filename;
+}
+
+inline string StringReplace(string str, const string& from, const string& to) {
+  size_t pos = 0;
+
+  for (;;) {
+    pos = str.find(from, pos);
+    if (pos == string::npos) {
+      break;
+    }
+    str.replace(pos, from.length(), to);
+    pos += to.length();
+  }
+
+  return str;
+}
+
+inline string DotsToColons(const string& name) {
+  return StringReplace(name, ".", "::");
+}
+
+inline string DotsToUnderscores(const string& name) {
+  return StringReplace(name, ".", "_");
+}
+
+inline string ClassName(const google::protobuf::Descriptor* descriptor, bool qualified) {
+  // Find "outer", the descriptor of the top-level message in which
+  // "descriptor" is embedded.
+  const google::protobuf::Descriptor* outer = descriptor;
+  while (outer->containing_type() != NULL) outer = outer->containing_type();
+
+  const string& outer_name = outer->full_name();
+  string inner_name = descriptor->full_name().substr(outer_name.size());
+
+  if (qualified) {
+    return "::" + DotsToColons(outer_name) + DotsToUnderscores(inner_name);
+  } else {
+    return outer->name() + DotsToUnderscores(inner_name);
+  }
+}
+
+}  // namespace grpc_cpp_generator
+
+#endif  // NET_GRPC_COMPILER_CPP_GENERATOR_HELPERS_H__