diff options
Diffstat (limited to 'third_party/protobuf/3.4.0/src/google/protobuf/compiler/javanano/javanano_primitive_field.cc')
-rw-r--r-- | third_party/protobuf/3.4.0/src/google/protobuf/compiler/javanano/javanano_primitive_field.cc | 968 |
1 files changed, 968 insertions, 0 deletions
diff --git a/third_party/protobuf/3.4.0/src/google/protobuf/compiler/javanano/javanano_primitive_field.cc b/third_party/protobuf/3.4.0/src/google/protobuf/compiler/javanano/javanano_primitive_field.cc new file mode 100644 index 0000000000..66a0ff057c --- /dev/null +++ b/third_party/protobuf/3.4.0/src/google/protobuf/compiler/javanano/javanano_primitive_field.cc @@ -0,0 +1,968 @@ +// Protocol Buffers - Google's data interchange format +// Copyright 2008 Google Inc. All rights reserved. +// http://code.google.com/p/protobuf/ +// +// 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. + +// Author: kenton@google.com (Kenton Varda) +// Based on original Protocol Buffers design by +// Sanjay Ghemawat, Jeff Dean, and others. + +#include <map> +#include <math.h> +#include <string> + +#include <google/protobuf/compiler/javanano/javanano_primitive_field.h> +#include <google/protobuf/stubs/common.h> +#include <google/protobuf/compiler/javanano/javanano_helpers.h> +#include <google/protobuf/io/printer.h> +#include <google/protobuf/wire_format.h> +#include <google/protobuf/stubs/strutil.h> +#include <google/protobuf/stubs/substitute.h> + +namespace google { +namespace protobuf { +namespace compiler { +namespace javanano { + +using internal::WireFormat; +using internal::WireFormatLite; + +namespace { + +bool IsReferenceType(JavaType type) { + switch (type) { + case JAVATYPE_INT : return false; + case JAVATYPE_LONG : return false; + case JAVATYPE_FLOAT : return false; + case JAVATYPE_DOUBLE : return false; + case JAVATYPE_BOOLEAN: return false; + case JAVATYPE_STRING : return true; + case JAVATYPE_BYTES : return true; + case JAVATYPE_ENUM : return false; + case JAVATYPE_MESSAGE: return true; + + // No default because we want the compiler to complain if any new + // JavaTypes are added. + } + + GOOGLE_LOG(FATAL) << "Can't get here."; + return false; +} + +bool IsArrayType(JavaType type) { + switch (type) { + case JAVATYPE_INT : return false; + case JAVATYPE_LONG : return false; + case JAVATYPE_FLOAT : return false; + case JAVATYPE_DOUBLE : return false; + case JAVATYPE_BOOLEAN: return false; + case JAVATYPE_STRING : return false; + case JAVATYPE_BYTES : return true; + case JAVATYPE_ENUM : return false; + case JAVATYPE_MESSAGE: return false; + + // No default because we want the compiler to complain if any new + // JavaTypes are added. + } + + GOOGLE_LOG(FATAL) << "Can't get here."; + return false; +} + +const char* GetCapitalizedType(const FieldDescriptor* field) { + switch (field->type()) { + case FieldDescriptor::TYPE_INT32 : return "Int32" ; + case FieldDescriptor::TYPE_UINT32 : return "UInt32" ; + case FieldDescriptor::TYPE_SINT32 : return "SInt32" ; + case FieldDescriptor::TYPE_FIXED32 : return "Fixed32" ; + case FieldDescriptor::TYPE_SFIXED32: return "SFixed32"; + case FieldDescriptor::TYPE_INT64 : return "Int64" ; + case FieldDescriptor::TYPE_UINT64 : return "UInt64" ; + case FieldDescriptor::TYPE_SINT64 : return "SInt64" ; + case FieldDescriptor::TYPE_FIXED64 : return "Fixed64" ; + case FieldDescriptor::TYPE_SFIXED64: return "SFixed64"; + case FieldDescriptor::TYPE_FLOAT : return "Float" ; + case FieldDescriptor::TYPE_DOUBLE : return "Double" ; + case FieldDescriptor::TYPE_BOOL : return "Bool" ; + case FieldDescriptor::TYPE_STRING : return "String" ; + case FieldDescriptor::TYPE_BYTES : return "Bytes" ; + case FieldDescriptor::TYPE_ENUM : return "Enum" ; + case FieldDescriptor::TYPE_GROUP : return "Group" ; + case FieldDescriptor::TYPE_MESSAGE : return "Message" ; + + // No default because we want the compiler to complain if any new + // types are added. + } + + GOOGLE_LOG(FATAL) << "Can't get here."; + return NULL; +} + +// For encodings with fixed sizes, returns that size in bytes. Otherwise +// returns -1. +int FixedSize(FieldDescriptor::Type type) { + switch (type) { + case FieldDescriptor::TYPE_INT32 : return -1; + case FieldDescriptor::TYPE_INT64 : return -1; + case FieldDescriptor::TYPE_UINT32 : return -1; + case FieldDescriptor::TYPE_UINT64 : return -1; + case FieldDescriptor::TYPE_SINT32 : return -1; + case FieldDescriptor::TYPE_SINT64 : return -1; + case FieldDescriptor::TYPE_FIXED32 : return WireFormatLite::kFixed32Size; + case FieldDescriptor::TYPE_FIXED64 : return WireFormatLite::kFixed64Size; + case FieldDescriptor::TYPE_SFIXED32: return WireFormatLite::kSFixed32Size; + case FieldDescriptor::TYPE_SFIXED64: return WireFormatLite::kSFixed64Size; + case FieldDescriptor::TYPE_FLOAT : return WireFormatLite::kFloatSize; + case FieldDescriptor::TYPE_DOUBLE : return WireFormatLite::kDoubleSize; + + case FieldDescriptor::TYPE_BOOL : return WireFormatLite::kBoolSize; + case FieldDescriptor::TYPE_ENUM : return -1; + + case FieldDescriptor::TYPE_STRING : return -1; + case FieldDescriptor::TYPE_BYTES : return -1; + case FieldDescriptor::TYPE_GROUP : return -1; + case FieldDescriptor::TYPE_MESSAGE : return -1; + + // No default because we want the compiler to complain if any new + // types are added. + } + GOOGLE_LOG(FATAL) << "Can't get here."; + return -1; +} + +bool AllAscii(const string& text) { + for (int i = 0; i < text.size(); i++) { + if ((text[i] & 0x80) != 0) { + return false; + } + } + return true; +} + + +void SetPrimitiveVariables(const FieldDescriptor* descriptor, const Params params, + std::map<string, string>* variables) { + (*variables)["name"] = + RenameJavaKeywords(UnderscoresToCamelCase(descriptor)); + (*variables)["capitalized_name"] = + RenameJavaKeywords(UnderscoresToCapitalizedCamelCase(descriptor)); + (*variables)["number"] = SimpleItoa(descriptor->number()); + if (params.use_reference_types_for_primitives() + && !descriptor->is_repeated()) { + (*variables)["type"] = BoxedPrimitiveTypeName(GetJavaType(descriptor)); + } else { + (*variables)["type"] = PrimitiveTypeName(GetJavaType(descriptor)); + } + // Deals with defaults. For C++-string types (string and bytes), + // we might need to have the generated code do the unicode decoding + // (see comments in InternalNano.java for gory details.). We would + // like to do this once into a static field and re-use that from + // then on. + if (descriptor->cpp_type() == FieldDescriptor::CPPTYPE_STRING && + !descriptor->default_value_string().empty() && + !params.use_reference_types_for_primitives()) { + if (descriptor->type() == FieldDescriptor::TYPE_BYTES) { + (*variables)["default"] = DefaultValue(params, descriptor); + (*variables)["default_constant"] = FieldDefaultConstantName(descriptor); + (*variables)["default_constant_value"] = strings::Substitute( + "com.google.protobuf.nano.InternalNano.bytesDefaultValue(\"$0\")", + CEscape(descriptor->default_value_string())); + (*variables)["default_copy_if_needed"] = + (*variables)["default"] + ".clone()"; + } else if (AllAscii(descriptor->default_value_string())) { + // All chars are ASCII. In this case directly referencing a + // CEscape()'d string literal works fine. + (*variables)["default"] = + "\"" + CEscape(descriptor->default_value_string()) + "\""; + (*variables)["default_copy_if_needed"] = (*variables)["default"]; + } else { + // Strings where some chars are non-ASCII. We need to save the + // default value. + (*variables)["default"] = DefaultValue(params, descriptor); + (*variables)["default_constant"] = FieldDefaultConstantName(descriptor); + (*variables)["default_constant_value"] = strings::Substitute( + "com.google.protobuf.nano.InternalNano.stringDefaultValue(\"$0\")", + CEscape(descriptor->default_value_string())); + (*variables)["default_copy_if_needed"] = (*variables)["default"]; + } + } else { + // Non-string, non-bytes field. Defaults are literals. + (*variables)["default"] = DefaultValue(params, descriptor); + (*variables)["default_copy_if_needed"] = (*variables)["default"]; + } + (*variables)["boxed_type"] = BoxedPrimitiveTypeName(GetJavaType(descriptor)); + (*variables)["capitalized_type"] = GetCapitalizedType(descriptor); + (*variables)["tag"] = SimpleItoa(WireFormat::MakeTag(descriptor)); + (*variables)["tag_size"] = SimpleItoa( + WireFormat::TagSize(descriptor->number(), descriptor->type())); + (*variables)["non_packed_tag"] = SimpleItoa( + internal::WireFormatLite::MakeTag(descriptor->number(), + internal::WireFormat::WireTypeForFieldType(descriptor->type()))); + int fixed_size = FixedSize(descriptor->type()); + if (fixed_size != -1) { + (*variables)["fixed_size"] = SimpleItoa(fixed_size); + } + (*variables)["message_name"] = descriptor->containing_type()->name(); + (*variables)["empty_array_name"] = EmptyArrayName(params, descriptor); +} +} // namespace + +// =================================================================== + +PrimitiveFieldGenerator:: +PrimitiveFieldGenerator(const FieldDescriptor* descriptor, const Params& params) + : FieldGenerator(params), descriptor_(descriptor) { + SetPrimitiveVariables(descriptor, params, &variables_); +} + +PrimitiveFieldGenerator::~PrimitiveFieldGenerator() {} + +bool PrimitiveFieldGenerator::SavedDefaultNeeded() const { + return variables_.find("default_constant") != variables_.end(); +} + +void PrimitiveFieldGenerator::GenerateInitSavedDefaultCode(io::Printer* printer) const { + if (variables_.find("default_constant") != variables_.end()) { + printer->Print(variables_, + "$default_constant$ = $default_constant_value$;\n"); + } +} + +void PrimitiveFieldGenerator:: +GenerateMembers(io::Printer* printer, bool lazy_init) const { + if (variables_.find("default_constant") != variables_.end()) { + // Those primitive types that need a saved default. + if (lazy_init) { + printer->Print(variables_, + "private static $type$ $default_constant$;\n"); + } else { + printer->Print(variables_, + "private static final $type$ $default_constant$ =\n" + " $default_constant_value$;\n"); + } + } + + printer->Print(variables_, + "public $type$ $name$;\n"); + + if (params_.generate_has()) { + printer->Print(variables_, + "public boolean has$capitalized_name$;\n"); + } +} + +void PrimitiveFieldGenerator:: +GenerateClearCode(io::Printer* printer) const { + printer->Print(variables_, + "$name$ = $default_copy_if_needed$;\n"); + + if (params_.generate_has()) { + printer->Print(variables_, + "has$capitalized_name$ = false;\n"); + } +} + +void PrimitiveFieldGenerator:: +GenerateMergingCode(io::Printer* printer) const { + printer->Print(variables_, + "this.$name$ = input.read$capitalized_type$();\n"); + + if (params_.generate_has()) { + printer->Print(variables_, + "has$capitalized_name$ = true;\n"); + } +} + +void PrimitiveFieldGenerator:: +GenerateSerializationConditional(io::Printer* printer) const { + if (params_.use_reference_types_for_primitives()) { + // For reference type mode, serialize based on equality + // to null. + printer->Print(variables_, + "if (this.$name$ != null) {\n"); + return; + } + if (params_.generate_has()) { + printer->Print(variables_, + "if (has$capitalized_name$ || "); + } else { + printer->Print(variables_, + "if ("); + } + JavaType java_type = GetJavaType(descriptor_); + if (IsArrayType(java_type)) { + printer->Print(variables_, + "!java.util.Arrays.equals(this.$name$, $default$)) {\n"); + } else if (IsReferenceType(java_type)) { + printer->Print(variables_, + "!this.$name$.equals($default$)) {\n"); + } else if (java_type == JAVATYPE_FLOAT) { + printer->Print(variables_, + "java.lang.Float.floatToIntBits(this.$name$)\n" + " != java.lang.Float.floatToIntBits($default$)) {\n"); + } else if (java_type == JAVATYPE_DOUBLE) { + printer->Print(variables_, + "java.lang.Double.doubleToLongBits(this.$name$)\n" + " != java.lang.Double.doubleToLongBits($default$)) {\n"); + } else { + printer->Print(variables_, + "this.$name$ != $default$) {\n"); + } +} + +void PrimitiveFieldGenerator:: +GenerateSerializationCode(io::Printer* printer) const { + if (descriptor_->is_required() && !params_.generate_has()) { + // Always serialize a required field if we don't have the 'has' signal. + printer->Print(variables_, + "output.write$capitalized_type$($number$, this.$name$);\n"); + } else { + GenerateSerializationConditional(printer); + printer->Print(variables_, + " output.write$capitalized_type$($number$, this.$name$);\n" + "}\n"); + } +} + +void PrimitiveFieldGenerator:: +GenerateSerializedSizeCode(io::Printer* printer) const { + if (descriptor_->is_required() && !params_.generate_has()) { + printer->Print(variables_, + "size += com.google.protobuf.nano.CodedOutputByteBufferNano\n" + " .compute$capitalized_type$Size($number$, this.$name$);\n"); + } else { + GenerateSerializationConditional(printer); + printer->Print(variables_, + " size += com.google.protobuf.nano.CodedOutputByteBufferNano\n" + " .compute$capitalized_type$Size($number$, this.$name$);\n" + "}\n"); + } +} + +void RepeatedPrimitiveFieldGenerator:: +GenerateFixClonedCode(io::Printer* printer) const { + printer->Print(variables_, + "if (this.$name$ != null && this.$name$.length > 0) {\n" + " cloned.$name$ = this.$name$.clone();\n" + "}\n"); +} + +void PrimitiveFieldGenerator:: +GenerateEqualsCode(io::Printer* printer) const { + // We define equality as serialized form equality. If generate_has(), + // then if the field value equals the default value in both messages, + // but one's 'has' field is set and the other's is not, the serialized + // forms are different and we should return false. + JavaType java_type = GetJavaType(descriptor_); + if (java_type == JAVATYPE_BYTES) { + printer->Print(variables_, + "if (!java.util.Arrays.equals(this.$name$, other.$name$)"); + if (params_.generate_has()) { + printer->Print(variables_, + "\n" + " || (java.util.Arrays.equals(this.$name$, $default$)\n" + " && this.has$capitalized_name$ != other.has$capitalized_name$)"); + } + printer->Print(") {\n" + " return false;\n" + "}\n"); + } else if (java_type == JAVATYPE_STRING + || params_.use_reference_types_for_primitives()) { + printer->Print(variables_, + "if (this.$name$ == null) {\n" + " if (other.$name$ != null) {\n" + " return false;\n" + " }\n" + "} else if (!this.$name$.equals(other.$name$)"); + if (params_.generate_has()) { + printer->Print(variables_, + "\n" + " || (this.$name$.equals($default$)\n" + " && this.has$capitalized_name$ != other.has$capitalized_name$)"); + } + printer->Print(") {\n" + " return false;\n" + "}\n"); + } else if (java_type == JAVATYPE_FLOAT) { + printer->Print(variables_, + "{\n" + " int bits = java.lang.Float.floatToIntBits(this.$name$);\n" + " if (bits != java.lang.Float.floatToIntBits(other.$name$)"); + if (params_.generate_has()) { + printer->Print(variables_, + "\n" + " || (bits == java.lang.Float.floatToIntBits($default$)\n" + " && this.has$capitalized_name$ != other.has$capitalized_name$)"); + } + printer->Print(") {\n" + " return false;\n" + " }\n" + "}\n"); + } else if (java_type == JAVATYPE_DOUBLE) { + printer->Print(variables_, + "{\n" + " long bits = java.lang.Double.doubleToLongBits(this.$name$);\n" + " if (bits != java.lang.Double.doubleToLongBits(other.$name$)"); + if (params_.generate_has()) { + printer->Print(variables_, + "\n" + " || (bits == java.lang.Double.doubleToLongBits($default$)\n" + " && this.has$capitalized_name$ != other.has$capitalized_name$)"); + } + printer->Print(") {\n" + " return false;\n" + " }\n" + "}\n"); + } else { + printer->Print(variables_, + "if (this.$name$ != other.$name$"); + if (params_.generate_has()) { + printer->Print(variables_, + "\n" + " || (this.$name$ == $default$\n" + " && this.has$capitalized_name$ != other.has$capitalized_name$)"); + } + printer->Print(") {\n" + " return false;\n" + "}\n"); + } +} + +void PrimitiveFieldGenerator:: +GenerateHashCodeCode(io::Printer* printer) const { + JavaType java_type = GetJavaType(descriptor_); + if (java_type == JAVATYPE_BYTES) { + printer->Print(variables_, + "result = 31 * result + java.util.Arrays.hashCode(this.$name$);\n"); + } else if (java_type == JAVATYPE_STRING + || params_.use_reference_types_for_primitives()) { + printer->Print(variables_, + "result = 31 * result\n" + " + (this.$name$ == null ? 0 : this.$name$.hashCode());\n"); + } else { + switch (java_type) { + // For all Java primitive types below, the hash codes match the + // results of BoxedType.valueOf(primitiveValue).hashCode(). + case JAVATYPE_INT: + printer->Print(variables_, + "result = 31 * result + this.$name$;\n"); + break; + case JAVATYPE_LONG: + printer->Print(variables_, + "result = 31 * result\n" + " + (int) (this.$name$ ^ (this.$name$ >>> 32));\n"); + break; + case JAVATYPE_FLOAT: + printer->Print(variables_, + "result = 31 * result\n" + " + java.lang.Float.floatToIntBits(this.$name$);\n"); + break; + case JAVATYPE_DOUBLE: + printer->Print(variables_, + "{\n" + " long v = java.lang.Double.doubleToLongBits(this.$name$);\n" + " result = 31 * result + (int) (v ^ (v >>> 32));\n" + "}\n"); + break; + case JAVATYPE_BOOLEAN: + printer->Print(variables_, + "result = 31 * result + (this.$name$ ? 1231 : 1237);\n"); + break; + default: + GOOGLE_LOG(ERROR) << "unknown java type for primitive field"; + break; + } + } +} + +// =================================================================== + +AccessorPrimitiveFieldGenerator:: +AccessorPrimitiveFieldGenerator(const FieldDescriptor* descriptor, + const Params& params, int has_bit_index) + : FieldGenerator(params), descriptor_(descriptor) { + SetPrimitiveVariables(descriptor, params, &variables_); + SetBitOperationVariables("has", has_bit_index, &variables_); +} + +AccessorPrimitiveFieldGenerator::~AccessorPrimitiveFieldGenerator() {} + +bool AccessorPrimitiveFieldGenerator::SavedDefaultNeeded() const { + return variables_.find("default_constant") != variables_.end(); +} + +void AccessorPrimitiveFieldGenerator:: +GenerateInitSavedDefaultCode(io::Printer* printer) const { + if (variables_.find("default_constant") != variables_.end()) { + printer->Print(variables_, + "$default_constant$ = $default_constant_value$;\n"); + } +} + +void AccessorPrimitiveFieldGenerator:: +GenerateMembers(io::Printer* printer, bool lazy_init) const { + if (variables_.find("default_constant") != variables_.end()) { + // Those primitive types that need a saved default. + if (lazy_init) { + printer->Print(variables_, + "private static $type$ $default_constant$;\n"); + } else { + printer->Print(variables_, + "private static final $type$ $default_constant$ =\n" + " $default_constant_value$;\n"); + } + } + printer->Print(variables_, + "private $type$ $name$_;\n" + "public $type$ get$capitalized_name$() {\n" + " return $name$_;\n" + "}\n" + "public $message_name$ set$capitalized_name$($type$ value) {\n"); + if (IsReferenceType(GetJavaType(descriptor_))) { + printer->Print(variables_, + " if (value == null) {\n" + " throw new java.lang.NullPointerException();\n" + " }\n"); + } + printer->Print(variables_, + " $name$_ = value;\n" + " $set_has$;\n" + " return this;\n" + "}\n" + "public boolean has$capitalized_name$() {\n" + " return $get_has$;\n" + "}\n" + "public $message_name$ clear$capitalized_name$() {\n" + " $name$_ = $default_copy_if_needed$;\n" + " $clear_has$;\n" + " return this;\n" + "}\n"); +} + +void AccessorPrimitiveFieldGenerator:: +GenerateClearCode(io::Printer* printer) const { + printer->Print(variables_, + "$name$_ = $default_copy_if_needed$;\n"); +} + +void AccessorPrimitiveFieldGenerator:: +GenerateMergingCode(io::Printer* printer) const { + printer->Print(variables_, + "$name$_ = input.read$capitalized_type$();\n" + "$set_has$;\n"); +} + +void AccessorPrimitiveFieldGenerator:: +GenerateSerializationCode(io::Printer* printer) const { + printer->Print(variables_, + "if ($get_has$) {\n" + " output.write$capitalized_type$($number$, $name$_);\n" + "}\n"); +} + +void AccessorPrimitiveFieldGenerator:: +GenerateSerializedSizeCode(io::Printer* printer) const { + printer->Print(variables_, + "if ($get_has$) {\n" + " size += com.google.protobuf.nano.CodedOutputByteBufferNano\n" + " .compute$capitalized_type$Size($number$, $name$_);\n" + "}\n"); +} + +void AccessorPrimitiveFieldGenerator:: +GenerateEqualsCode(io::Printer* printer) const { + switch (GetJavaType(descriptor_)) { + // For all Java primitive types below, the equality checks match the + // results of BoxedType.valueOf(primitiveValue).equals(otherValue). + case JAVATYPE_FLOAT: + printer->Print(variables_, + "if ($different_has$\n" + " || java.lang.Float.floatToIntBits($name$_)\n" + " != java.lang.Float.floatToIntBits(other.$name$_)) {\n" + " return false;\n" + "}\n"); + break; + case JAVATYPE_DOUBLE: + printer->Print(variables_, + "if ($different_has$\n" + " || java.lang.Double.doubleToLongBits($name$_)\n" + " != java.lang.Double.doubleToLongBits(other.$name$_)) {\n" + " return false;\n" + "}\n"); + break; + case JAVATYPE_INT: + case JAVATYPE_LONG: + case JAVATYPE_BOOLEAN: + printer->Print(variables_, + "if ($different_has$\n" + " || $name$_ != other.$name$_) {\n" + " return false;\n" + "}\n"); + break; + case JAVATYPE_STRING: + // Accessor style would guarantee $name$_ non-null + printer->Print(variables_, + "if ($different_has$\n" + " || !$name$_.equals(other.$name$_)) {\n" + " return false;\n" + "}\n"); + break; + case JAVATYPE_BYTES: + // Accessor style would guarantee $name$_ non-null + printer->Print(variables_, + "if ($different_has$\n" + " || !java.util.Arrays.equals($name$_, other.$name$_)) {\n" + " return false;\n" + "}\n"); + break; + default: + GOOGLE_LOG(ERROR) << "unknown java type for primitive field"; + break; + } +} + +void AccessorPrimitiveFieldGenerator:: +GenerateHashCodeCode(io::Printer* printer) const { + switch (GetJavaType(descriptor_)) { + // For all Java primitive types below, the hash codes match the + // results of BoxedType.valueOf(primitiveValue).hashCode(). + case JAVATYPE_INT: + printer->Print(variables_, + "result = 31 * result + $name$_;\n"); + break; + case JAVATYPE_LONG: + printer->Print(variables_, + "result = 31 * result + (int) ($name$_ ^ ($name$_ >>> 32));\n"); + break; + case JAVATYPE_FLOAT: + printer->Print(variables_, + "result = 31 * result +\n" + " java.lang.Float.floatToIntBits($name$_);\n"); + break; + case JAVATYPE_DOUBLE: + printer->Print(variables_, + "{\n" + " long v = java.lang.Double.doubleToLongBits($name$_);\n" + " result = 31 * result + (int) (v ^ (v >>> 32));\n" + "}\n"); + break; + case JAVATYPE_BOOLEAN: + printer->Print(variables_, + "result = 31 * result + ($name$_ ? 1231 : 1237);\n"); + break; + case JAVATYPE_STRING: + // Accessor style would guarantee $name$_ non-null + printer->Print(variables_, + "result = 31 * result + $name$_.hashCode();\n"); + break; + case JAVATYPE_BYTES: + // Accessor style would guarantee $name$_ non-null + printer->Print(variables_, + "result = 31 * result + java.util.Arrays.hashCode($name$_);\n"); + break; + default: + GOOGLE_LOG(ERROR) << "unknown java type for primitive field"; + break; + } +} + +// =================================================================== + +PrimitiveOneofFieldGenerator::PrimitiveOneofFieldGenerator( + const FieldDescriptor* descriptor, const Params& params) + : FieldGenerator(params), descriptor_(descriptor) { + SetPrimitiveVariables(descriptor, params, &variables_); + SetCommonOneofVariables(descriptor, &variables_); +} + +PrimitiveOneofFieldGenerator::~PrimitiveOneofFieldGenerator() {} + +void PrimitiveOneofFieldGenerator::GenerateMembers( + io::Printer* printer, bool /*unused lazy_init*/) const { + printer->Print(variables_, + "public boolean has$capitalized_name$() {\n" + " return $has_oneof_case$;\n" + "}\n" + "public $type$ get$capitalized_name$() {\n" + " if ($has_oneof_case$) {\n" + " return ($type$) ($boxed_type$) this.$oneof_name$_;\n" + " }\n" + " return $default$;\n" + "}\n" + "public $message_name$ set$capitalized_name$($type$ value) {\n" + " $set_oneof_case$;\n" + " this.$oneof_name$_ = value;\n" + " return this;\n" + "}\n"); +} + +void PrimitiveOneofFieldGenerator::GenerateClearCode( + io::Printer* printer) const { + // No clear method for oneof fields. +} + +void PrimitiveOneofFieldGenerator::GenerateMergingCode( + io::Printer* printer) const { + printer->Print(variables_, + "this.$oneof_name$_ = input.read$capitalized_type$();\n" + "$set_oneof_case$;\n"); +} + +void PrimitiveOneofFieldGenerator::GenerateSerializationCode( + io::Printer* printer) const { + printer->Print(variables_, + "if ($has_oneof_case$) {\n" + " output.write$capitalized_type$(\n" + " $number$, ($boxed_type$) this.$oneof_name$_);\n" + "}\n"); +} + +void PrimitiveOneofFieldGenerator::GenerateSerializedSizeCode( + io::Printer* printer) const { + printer->Print(variables_, + "if ($has_oneof_case$) {\n" + " size += com.google.protobuf.nano.CodedOutputByteBufferNano\n" + " .compute$capitalized_type$Size(\n" + " $number$, ($boxed_type$) this.$oneof_name$_);\n" + "}\n"); +} + +void PrimitiveOneofFieldGenerator::GenerateEqualsCode( + io::Printer* printer) const { + GenerateOneofFieldEquals(descriptor_, variables_, printer); +} + +void PrimitiveOneofFieldGenerator::GenerateHashCodeCode( + io::Printer* printer) const { + GenerateOneofFieldHashCode(descriptor_, variables_, printer); +} + +// =================================================================== + +RepeatedPrimitiveFieldGenerator::RepeatedPrimitiveFieldGenerator( + const FieldDescriptor* descriptor, const Params& params) + : FieldGenerator(params), descriptor_(descriptor) { + SetPrimitiveVariables(descriptor, params, &variables_); +} + +RepeatedPrimitiveFieldGenerator::~RepeatedPrimitiveFieldGenerator() {} + +void RepeatedPrimitiveFieldGenerator:: +GenerateMembers(io::Printer* printer, bool /*unused init_defaults*/) const { + printer->Print(variables_, + "public $type$[] $name$;\n"); +} + +void RepeatedPrimitiveFieldGenerator:: +GenerateClearCode(io::Printer* printer) const { + printer->Print(variables_, + "$name$ = $default$;\n"); +} + +void RepeatedPrimitiveFieldGenerator:: +GenerateMergingCode(io::Printer* printer) const { + // First, figure out the length of the array, then parse. + printer->Print(variables_, + "int arrayLength = com.google.protobuf.nano.WireFormatNano\n" + " .getRepeatedFieldArrayLength(input, $non_packed_tag$);\n" + "int i = this.$name$ == null ? 0 : this.$name$.length;\n"); + + if (GetJavaType(descriptor_) == JAVATYPE_BYTES) { + printer->Print(variables_, + "byte[][] newArray = new byte[i + arrayLength][];\n"); + } else { + printer->Print(variables_, + "$type$[] newArray = new $type$[i + arrayLength];\n"); + } + printer->Print(variables_, + "if (i != 0) {\n" + " java.lang.System.arraycopy(this.$name$, 0, newArray, 0, i);\n" + "}\n" + "for (; i < newArray.length - 1; i++) {\n" + " newArray[i] = input.read$capitalized_type$();\n" + " input.readTag();\n" + "}\n" + "// Last one without readTag.\n" + "newArray[i] = input.read$capitalized_type$();\n" + "this.$name$ = newArray;\n"); +} + +void RepeatedPrimitiveFieldGenerator:: +GenerateMergingCodeFromPacked(io::Printer* printer) const { + printer->Print( + "int length = input.readRawVarint32();\n" + "int limit = input.pushLimit(length);\n"); + + // If we know the elements will all be of the same size, the arrayLength + // can be calculated much more easily. However, FixedSize() returns 1 for + // repeated bool fields, which are guaranteed to have the fixed size of + // 1 byte per value only if we control the output. On the wire they can + // legally appear as variable-size integers, so we need to use the slow + // way for repeated bool fields. + if (descriptor_->type() == FieldDescriptor::TYPE_BOOL + || FixedSize(descriptor_->type()) == -1) { + printer->Print(variables_, + "// First pass to compute array length.\n" + "int arrayLength = 0;\n" + "int startPos = input.getPosition();\n" + "while (input.getBytesUntilLimit() > 0) {\n" + " input.read$capitalized_type$();\n" + " arrayLength++;\n" + "}\n" + "input.rewindToPosition(startPos);\n"); + } else { + printer->Print(variables_, + "int arrayLength = length / $fixed_size$;\n"); + } + + printer->Print(variables_, + "int i = this.$name$ == null ? 0 : this.$name$.length;\n" + "$type$[] newArray = new $type$[i + arrayLength];\n" + "if (i != 0) {\n" + " java.lang.System.arraycopy(this.$name$, 0, newArray, 0, i);\n" + "}\n" + "for (; i < newArray.length; i++) {\n" + " newArray[i] = input.read$capitalized_type$();\n" + "}\n" + "this.$name$ = newArray;\n" + "input.popLimit(limit);\n"); +} + +void RepeatedPrimitiveFieldGenerator:: +GenerateRepeatedDataSizeCode(io::Printer* printer) const { + // Creates a variable dataSize and puts the serialized size in there. + // If the element type is a Java reference type, also generates + // dataCount which stores the number of non-null elements in the field. + if (IsReferenceType(GetJavaType(descriptor_))) { + printer->Print(variables_, + "int dataCount = 0;\n" + "int dataSize = 0;\n" + "for (int i = 0; i < this.$name$.length; i++) {\n" + " $type$ element = this.$name$[i];\n" + " if (element != null) {\n" + " dataCount++;\n" + " dataSize += com.google.protobuf.nano.CodedOutputByteBufferNano\n" + " .compute$capitalized_type$SizeNoTag(element);\n" + " }\n" + "}\n"); + } else if (FixedSize(descriptor_->type()) == -1) { + printer->Print(variables_, + "int dataSize = 0;\n" + "for (int i = 0; i < this.$name$.length; i++) {\n" + " $type$ element = this.$name$[i];\n" + " dataSize += com.google.protobuf.nano.CodedOutputByteBufferNano\n" + " .compute$capitalized_type$SizeNoTag(element);\n" + "}\n"); + } else { + printer->Print(variables_, + "int dataSize = $fixed_size$ * this.$name$.length;\n"); + } +} + +void RepeatedPrimitiveFieldGenerator:: +GenerateSerializationCode(io::Printer* printer) const { + printer->Print(variables_, + "if (this.$name$ != null && this.$name$.length > 0) {\n"); + printer->Indent(); + + if (descriptor_->is_packable() && descriptor_->options().packed()) { + GenerateRepeatedDataSizeCode(printer); + printer->Print(variables_, + "output.writeRawVarint32($tag$);\n" + "output.writeRawVarint32(dataSize);\n" + "for (int i = 0; i < this.$name$.length; i++) {\n" + " output.write$capitalized_type$NoTag(this.$name$[i]);\n" + "}\n"); + } else if (IsReferenceType(GetJavaType(descriptor_))) { + printer->Print(variables_, + "for (int i = 0; i < this.$name$.length; i++) {\n" + " $type$ element = this.$name$[i];\n" + " if (element != null) {\n" + " output.write$capitalized_type$($number$, element);\n" + " }\n" + "}\n"); + } else { + printer->Print(variables_, + "for (int i = 0; i < this.$name$.length; i++) {\n" + " output.write$capitalized_type$($number$, this.$name$[i]);\n" + "}\n"); + } + + printer->Outdent(); + printer->Print("}\n"); +} + +void RepeatedPrimitiveFieldGenerator:: +GenerateSerializedSizeCode(io::Printer* printer) const { + printer->Print(variables_, + "if (this.$name$ != null && this.$name$.length > 0) {\n"); + printer->Indent(); + + GenerateRepeatedDataSizeCode(printer); + + printer->Print( + "size += dataSize;\n"); + if (descriptor_->is_packable() && descriptor_->options().packed()) { + printer->Print(variables_, + "size += $tag_size$;\n" + "size += com.google.protobuf.nano.CodedOutputByteBufferNano\n" + " .computeRawVarint32Size(dataSize);\n"); + } else if (IsReferenceType(GetJavaType(descriptor_))) { + printer->Print(variables_, + "size += $tag_size$ * dataCount;\n"); + } else { + printer->Print(variables_, + "size += $tag_size$ * this.$name$.length;\n"); + } + + printer->Outdent(); + + printer->Print( + "}\n"); +} + +void RepeatedPrimitiveFieldGenerator:: +GenerateEqualsCode(io::Printer* printer) const { + printer->Print(variables_, + "if (!com.google.protobuf.nano.InternalNano.equals(\n" + " this.$name$, other.$name$)) {\n" + " return false;\n" + "}\n"); +} + +void RepeatedPrimitiveFieldGenerator:: +GenerateHashCodeCode(io::Printer* printer) const { + printer->Print(variables_, + "result = 31 * result\n" + " + com.google.protobuf.nano.InternalNano.hashCode(this.$name$);\n"); +} + +} // namespace javanano +} // namespace compiler +} // namespace protobuf +} // namespace google |