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Diffstat (limited to 'third_party/protobuf/3.4.0/src/google/protobuf/compiler/objectivec/objectivec_enum_field.cc')
-rw-r--r-- | third_party/protobuf/3.4.0/src/google/protobuf/compiler/objectivec/objectivec_enum_field.cc | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/third_party/protobuf/3.4.0/src/google/protobuf/compiler/objectivec/objectivec_enum_field.cc b/third_party/protobuf/3.4.0/src/google/protobuf/compiler/objectivec/objectivec_enum_field.cc new file mode 100644 index 0000000000..8899a13aa9 --- /dev/null +++ b/third_party/protobuf/3.4.0/src/google/protobuf/compiler/objectivec/objectivec_enum_field.cc @@ -0,0 +1,151 @@ +// Protocol Buffers - Google's data interchange format +// Copyright 2008 Google Inc. All rights reserved. +// https://developers.google.com/protocol-buffers/ +// +// 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. + +#include <map> +#include <string> + +#include <google/protobuf/compiler/objectivec/objectivec_enum_field.h> +#include <google/protobuf/stubs/common.h> +#include <google/protobuf/compiler/objectivec/objectivec_helpers.h> +#include <google/protobuf/io/printer.h> +#include <google/protobuf/wire_format.h> +#include <google/protobuf/stubs/strutil.h> + +namespace google { +namespace protobuf { +namespace compiler { +namespace objectivec { + +namespace { + +void SetEnumVariables(const FieldDescriptor* descriptor, + std::map<string, string>* variables) { + string type = EnumName(descriptor->enum_type()); + (*variables)["storage_type"] = type; + // For non repeated fields, if it was defined in a different file, the + // property decls need to use "enum NAME" rather than just "NAME" to support + // the forward declaration of the enums. + if (!descriptor->is_repeated() && + (descriptor->file() != descriptor->enum_type()->file())) { + (*variables)["property_type"] = "enum " + type; + } + (*variables)["enum_verifier"] = type + "_IsValidValue"; + (*variables)["enum_desc_func"] = type + "_EnumDescriptor"; + + (*variables)["dataTypeSpecific_name"] = "enumDescFunc"; + (*variables)["dataTypeSpecific_value"] = (*variables)["enum_desc_func"]; + + const Descriptor* msg_descriptor = descriptor->containing_type(); + (*variables)["owning_message_class"] = ClassName(msg_descriptor); +} +} // namespace + +EnumFieldGenerator::EnumFieldGenerator(const FieldDescriptor* descriptor, + const Options& options) + : SingleFieldGenerator(descriptor, options) { + SetEnumVariables(descriptor, &variables_); +} + +EnumFieldGenerator::~EnumFieldGenerator() {} + +void EnumFieldGenerator::GenerateCFunctionDeclarations( + io::Printer* printer) const { + if (!HasPreservingUnknownEnumSemantics(descriptor_->file())) { + return; + } + + printer->Print( + variables_, + "/**\n" + " * Fetches the raw value of a @c $owning_message_class$'s @c $name$ property, even\n" + " * if the value was not defined by the enum at the time the code was generated.\n" + " **/\n" + "int32_t $owning_message_class$_$capitalized_name$_RawValue($owning_message_class$ *message);\n" + "/**\n" + " * Sets the raw value of an @c $owning_message_class$'s @c $name$ property, allowing\n" + " * it to be set to a value that was not defined by the enum at the time the code\n" + " * was generated.\n" + " **/\n" + "void Set$owning_message_class$_$capitalized_name$_RawValue($owning_message_class$ *message, int32_t value);\n" + "\n"); +} + +void EnumFieldGenerator::GenerateCFunctionImplementations( + io::Printer* printer) const { + if (!HasPreservingUnknownEnumSemantics(descriptor_->file())) return; + + printer->Print( + variables_, + "int32_t $owning_message_class$_$capitalized_name$_RawValue($owning_message_class$ *message) {\n" + " GPBDescriptor *descriptor = [$owning_message_class$ descriptor];\n" + " GPBFieldDescriptor *field = [descriptor fieldWithNumber:$field_number_name$];\n" + " return GPBGetMessageInt32Field(message, field);\n" + "}\n" + "\n" + "void Set$owning_message_class$_$capitalized_name$_RawValue($owning_message_class$ *message, int32_t value) {\n" + " GPBDescriptor *descriptor = [$owning_message_class$ descriptor];\n" + " GPBFieldDescriptor *field = [descriptor fieldWithNumber:$field_number_name$];\n" + " GPBSetInt32IvarWithFieldInternal(message, field, value, descriptor.file.syntax);\n" + "}\n" + "\n"); +} + +void EnumFieldGenerator::DetermineForwardDeclarations( + std::set<string>* fwd_decls) const { + SingleFieldGenerator::DetermineForwardDeclarations(fwd_decls); + // If it is an enum defined in a different file, then we'll need a forward + // declaration for it. When it is in our file, all the enums are output + // before the message, so it will be declared before it is needed. + if (descriptor_->file() != descriptor_->enum_type()->file()) { + // Enum name is already in "storage_type". + const string& name = variable("storage_type"); + fwd_decls->insert("GPB_ENUM_FWD_DECLARE(" + name + ")"); + } +} + +RepeatedEnumFieldGenerator::RepeatedEnumFieldGenerator( + const FieldDescriptor* descriptor, const Options& options) + : RepeatedFieldGenerator(descriptor, options) { + SetEnumVariables(descriptor, &variables_); + variables_["array_storage_type"] = "GPBEnumArray"; +} + +RepeatedEnumFieldGenerator::~RepeatedEnumFieldGenerator() {} + +void RepeatedEnumFieldGenerator::FinishInitialization(void) { + RepeatedFieldGenerator::FinishInitialization(); + variables_["array_comment"] = + "// |" + variables_["name"] + "| contains |" + variables_["storage_type"] + "|\n"; +} + +} // namespace objectivec +} // namespace compiler +} // namespace protobuf +} // namespace google |