diff options
Diffstat (limited to 'third_party/protobuf/3.4.0/src/google/protobuf/compiler/objectivec/objectivec_helpers.cc')
| -rw-r--r-- | third_party/protobuf/3.4.0/src/google/protobuf/compiler/objectivec/objectivec_helpers.cc | 1676 |
1 files changed, 1676 insertions, 0 deletions
diff --git a/third_party/protobuf/3.4.0/src/google/protobuf/compiler/objectivec/objectivec_helpers.cc b/third_party/protobuf/3.4.0/src/google/protobuf/compiler/objectivec/objectivec_helpers.cc new file mode 100644 index 0000000000..54dc7455d9 --- /dev/null +++ b/third_party/protobuf/3.4.0/src/google/protobuf/compiler/objectivec/objectivec_helpers.cc @@ -0,0 +1,1676 @@ +// 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. + +#ifndef _MSC_VER +#include <unistd.h> +#endif +#include <climits> +#include <errno.h> +#include <fcntl.h> +#include <fstream> +#include <iostream> +#include <sstream> +#include <stdlib.h> +#include <vector> + +#include <google/protobuf/stubs/hash.h> +#include <google/protobuf/compiler/objectivec/objectivec_helpers.h> +#include <google/protobuf/descriptor.pb.h> +#include <google/protobuf/io/coded_stream.h> +#include <google/protobuf/io/printer.h> +#include <google/protobuf/io/zero_copy_stream_impl.h> +#include <google/protobuf/stubs/common.h> +#include <google/protobuf/stubs/io_win32.h> +#include <google/protobuf/stubs/strutil.h> + +#if defined(_MSC_VER) +// DO NOT include <io.h>, instead create functions in io_win32.{h,cc} and import +// them like we do below. +using google::protobuf::internal::win32::open; +#endif + +// NOTE: src/google/protobuf/compiler/plugin.cc makes use of cerr for some +// error cases, so it seems to be ok to use as a back door for errors. + +namespace google { +namespace protobuf { +namespace compiler { +namespace objectivec { + +Options::Options() { + // Default is the value of the env for the package prefixes. + const char* file_path = getenv("GPB_OBJC_EXPECTED_PACKAGE_PREFIXES"); + if (file_path) { + expected_prefixes_path = file_path; + } +} + +namespace { + +hash_set<string> MakeWordsMap(const char* const words[], size_t num_words) { + hash_set<string> result; + for (int i = 0; i < num_words; i++) { + result.insert(words[i]); + } + return result; +} + +const char* const kUpperSegmentsList[] = {"url", "http", "https"}; + +hash_set<string> kUpperSegments = + MakeWordsMap(kUpperSegmentsList, GOOGLE_ARRAYSIZE(kUpperSegmentsList)); + +bool ascii_isnewline(char c) { + return c == '\n' || c == '\r'; +} + +// Internal helper for name handing. +// Do not expose this outside of helpers, stick to having functions for specific +// cases (ClassName(), FieldName()), so there is always consistent suffix rules. +string UnderscoresToCamelCase(const string& input, bool first_capitalized) { + vector<string> values; + string current; + + bool last_char_was_number = false; + bool last_char_was_lower = false; + bool last_char_was_upper = false; + for (int i = 0; i < input.size(); i++) { + char c = input[i]; + if (ascii_isdigit(c)) { + if (!last_char_was_number) { + values.push_back(current); + current = ""; + } + current += c; + last_char_was_number = last_char_was_lower = last_char_was_upper = false; + last_char_was_number = true; + } else if (ascii_islower(c)) { + // lowercase letter can follow a lowercase or uppercase letter + if (!last_char_was_lower && !last_char_was_upper) { + values.push_back(current); + current = ""; + } + current += c; // already lower + last_char_was_number = last_char_was_lower = last_char_was_upper = false; + last_char_was_lower = true; + } else if (ascii_isupper(c)) { + if (!last_char_was_upper) { + values.push_back(current); + current = ""; + } + current += ascii_tolower(c); + last_char_was_number = last_char_was_lower = last_char_was_upper = false; + last_char_was_upper = true; + } else { + last_char_was_number = last_char_was_lower = last_char_was_upper = false; + } + } + values.push_back(current); + + string result; + bool first_segment_forces_upper = false; + for (vector<string>::iterator i = values.begin(); i != values.end(); ++i) { + string value = *i; + bool all_upper = (kUpperSegments.count(value) > 0); + if (all_upper && (result.length() == 0)) { + first_segment_forces_upper = true; + } + for (int j = 0; j < value.length(); j++) { + if (j == 0 || all_upper) { + value[j] = ascii_toupper(value[j]); + } else { + // Nothing, already in lower. + } + } + result += value; + } + if ((result.length() != 0) && + !first_capitalized && + !first_segment_forces_upper) { + result[0] = ascii_tolower(result[0]); + } + return result; +} + +const char* const kReservedWordList[] = { + // Objective C "keywords" that aren't in C + // From + // http://stackoverflow.com/questions/1873630/reserved-keywords-in-objective-c + "id", "_cmd", "super", "in", "out", "inout", "bycopy", "byref", "oneway", + "self", + + // C/C++ keywords (Incl C++ 0x11) + // From http://en.cppreference.com/w/cpp/keywords + "and", "and_eq", "alignas", "alignof", "asm", "auto", "bitand", "bitor", + "bool", "break", "case", "catch", "char", "char16_t", "char32_t", "class", + "compl", "const", "constexpr", "const_cast", "continue", "decltype", + "default", "delete", "double", "dynamic_cast", "else", "enum", "explicit", + "export", "extern ", "false", "float", "for", "friend", "goto", "if", + "inline", "int", "long", "mutable", "namespace", "new", "noexcept", "not", + "not_eq", "nullptr", "operator", "or", "or_eq", "private", "protected", + "public", "register", "reinterpret_cast", "return", "short", "signed", + "sizeof", "static", "static_assert", "static_cast", "struct", "switch", + "template", "this", "thread_local", "throw", "true", "try", "typedef", + "typeid", "typename", "union", "unsigned", "using", "virtual", "void", + "volatile", "wchar_t", "while", "xor", "xor_eq", + + // C99 keywords + // From + // http://publib.boulder.ibm.com/infocenter/lnxpcomp/v8v101/index.jsp?topic=%2Fcom.ibm.xlcpp8l.doc%2Flanguage%2Fref%2Fkeyw.htm + "restrict", + + // Objective-C Runtime typedefs + // From <obc/runtime.h> + "Category", "Ivar", "Method", "Protocol", + + // NSObject Methods + // new is covered by C++ keywords. + "description", "debugDescription", "finalize", "hash", "dealloc", "init", + "class", "superclass", "retain", "release", "autorelease", "retainCount", + "zone", "isProxy", "copy", "mutableCopy", "classForCoder", + + // GPBMessage Methods + // Only need to add instance methods that may conflict with + // method declared in protos. The main cases are methods + // that take no arguments, or setFoo:/hasFoo: type methods. + "clear", "data", "delimitedData", "descriptor", "extensionRegistry", + "extensionsCurrentlySet", "initialized", "isInitialized", "serializedSize", + "sortedExtensionsInUse", "unknownFields", + + // MacTypes.h names + "Fixed", "Fract", "Size", "LogicalAddress", "PhysicalAddress", "ByteCount", + "ByteOffset", "Duration", "AbsoluteTime", "OptionBits", "ItemCount", + "PBVersion", "ScriptCode", "LangCode", "RegionCode", "OSType", + "ProcessSerialNumber", "Point", "Rect", "FixedPoint", "FixedRect", "Style", + "StyleParameter", "StyleField", "TimeScale", "TimeBase", "TimeRecord", +}; + +hash_set<string> kReservedWords = + MakeWordsMap(kReservedWordList, GOOGLE_ARRAYSIZE(kReservedWordList)); + +string SanitizeNameForObjC(const string& input, + const string& extension, + string* out_suffix_added) { + if (kReservedWords.count(input) > 0) { + if (out_suffix_added) *out_suffix_added = extension; + return input + extension; + } + if (out_suffix_added) out_suffix_added->clear(); + return input; +} + +string NameFromFieldDescriptor(const FieldDescriptor* field) { + if (field->type() == FieldDescriptor::TYPE_GROUP) { + return field->message_type()->name(); + } else { + return field->name(); + } +} + +void PathSplit(const string& path, string* directory, string* basename) { + string::size_type last_slash = path.rfind('/'); + if (last_slash == string::npos) { + if (directory) { + *directory = ""; + } + if (basename) { + *basename = path; + } + } else { + if (directory) { + *directory = path.substr(0, last_slash); + } + if (basename) { + *basename = path.substr(last_slash + 1); + } + } +} + +bool IsSpecialName(const string& name, const string* special_names, + size_t count) { + for (size_t i = 0; i < count; ++i) { + size_t length = special_names[i].length(); + if (name.compare(0, length, special_names[i]) == 0) { + if (name.length() > length) { + // If name is longer than the retained_name[i] that it matches + // the next character must be not lower case (newton vs newTon vs + // new_ton). + return !ascii_islower(name[length]); + } else { + return true; + } + } + } + return false; +} + +string GetZeroEnumNameForFlagType(const FlagType flag_type) { + switch(flag_type) { + case FLAGTYPE_DESCRIPTOR_INITIALIZATION: + return "GPBDescriptorInitializationFlag_None"; + case FLAGTYPE_EXTENSION: + return "GPBExtensionNone"; + case FLAGTYPE_FIELD: + return "GPBFieldNone"; + default: + GOOGLE_LOG(FATAL) << "Can't get here."; + return "0"; + } +} + +string GetEnumNameForFlagType(const FlagType flag_type) { + switch(flag_type) { + case FLAGTYPE_DESCRIPTOR_INITIALIZATION: + return "GPBDescriptorInitializationFlags"; + case FLAGTYPE_EXTENSION: + return "GPBExtensionOptions"; + case FLAGTYPE_FIELD: + return "GPBFieldFlags"; + default: + GOOGLE_LOG(FATAL) << "Can't get here."; + return string(); + } +} + +} // namespace + +// Escape C++ trigraphs by escaping question marks to \? +string EscapeTrigraphs(const string& to_escape) { + return StringReplace(to_escape, "?", "\\?", true); +} + +string StripProto(const string& filename) { + if (HasSuffixString(filename, ".protodevel")) { + return StripSuffixString(filename, ".protodevel"); + } else { + return StripSuffixString(filename, ".proto"); + } +} + +void StringPieceTrimWhitespace(StringPiece* input) { + while (!input->empty() && ascii_isspace(*input->data())) { + input->remove_prefix(1); + } + while (!input->empty() && ascii_isspace((*input)[input->length() - 1])) { + input->remove_suffix(1); + } +} + + +bool IsRetainedName(const string& name) { + // List of prefixes from + // http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/MemoryMgmt/Articles/mmRules.html + static const string retained_names[] = {"new", "alloc", "copy", + "mutableCopy"}; + return IsSpecialName(name, retained_names, + sizeof(retained_names) / sizeof(retained_names[0])); +} + +bool IsInitName(const string& name) { + static const string init_names[] = {"init"}; + return IsSpecialName(name, init_names, + sizeof(init_names) / sizeof(init_names[0])); +} + +string BaseFileName(const FileDescriptor* file) { + string basename; + PathSplit(file->name(), NULL, &basename); + return basename; +} + +string FileClassPrefix(const FileDescriptor* file) { + // Default is empty string, no need to check has_objc_class_prefix. + string result = file->options().objc_class_prefix(); + return result; +} + +string FilePath(const FileDescriptor* file) { + string output; + string basename; + string directory; + PathSplit(file->name(), &directory, &basename); + if (directory.length() > 0) { + output = directory + "/"; + } + basename = StripProto(basename); + + // CamelCase to be more ObjC friendly. + basename = UnderscoresToCamelCase(basename, true); + + output += basename; + return output; +} + +string FilePathBasename(const FileDescriptor* file) { + string output; + string basename; + string directory; + PathSplit(file->name(), &directory, &basename); + basename = StripProto(basename); + + // CamelCase to be more ObjC friendly. + output = UnderscoresToCamelCase(basename, true); + + return output; +} + +string FileClassName(const FileDescriptor* file) { + string name = FileClassPrefix(file); + name += UnderscoresToCamelCase(StripProto(BaseFileName(file)), true); + name += "Root"; + // There aren't really any reserved words that end in "Root", but playing + // it safe and checking. + return SanitizeNameForObjC(name, "_RootClass", NULL); +} + +string ClassNameWorker(const Descriptor* descriptor) { + string name; + if (descriptor->containing_type() != NULL) { + name = ClassNameWorker(descriptor->containing_type()); + name += "_"; + } + return name + descriptor->name(); +} + +string ClassNameWorker(const EnumDescriptor* descriptor) { + string name; + if (descriptor->containing_type() != NULL) { + name = ClassNameWorker(descriptor->containing_type()); + name += "_"; + } + return name + descriptor->name(); +} + +string ClassName(const Descriptor* descriptor) { + return ClassName(descriptor, NULL); +} + +string ClassName(const Descriptor* descriptor, string* out_suffix_added) { + // 1. Message names are used as is (style calls for CamelCase, trust it). + // 2. Check for reserved word at the very end and then suffix things. + string prefix = FileClassPrefix(descriptor->file()); + string name = ClassNameWorker(descriptor); + return SanitizeNameForObjC(prefix + name, "_Class", out_suffix_added); +} + +string EnumName(const EnumDescriptor* descriptor) { + // 1. Enum names are used as is (style calls for CamelCase, trust it). + // 2. Check for reserved word at the every end and then suffix things. + // message Fixed { + // message Size {...} + // enum Mumble {...} + // ... + // } + // yields Fixed_Class, Fixed_Size. + string name = FileClassPrefix(descriptor->file()); + name += ClassNameWorker(descriptor); + return SanitizeNameForObjC(name, "_Enum", NULL); +} + +string EnumValueName(const EnumValueDescriptor* descriptor) { + // Because of the Switch enum compatibility, the name on the enum has to have + // the suffix handing, so it slightly diverges from how nested classes work. + // enum Fixed { + // FOO = 1 + // } + // yields Fixed_Enum and Fixed_Enum_Foo (not Fixed_Foo). + const string& class_name = EnumName(descriptor->type()); + const string& value_str = UnderscoresToCamelCase(descriptor->name(), true); + const string& name = class_name + "_" + value_str; + // There aren't really any reserved words with an underscore and a leading + // capital letter, but playing it safe and checking. + return SanitizeNameForObjC(name, "_Value", NULL); +} + +string EnumValueShortName(const EnumValueDescriptor* descriptor) { + // Enum value names (EnumValueName above) are the enum name turned into + // a class name and then the value name is CamelCased and concatenated; the + // whole thing then gets sanitized for reserved words. + // The "short name" is intended to be the final leaf, the value name; but + // you can't simply send that off to sanitize as that could result in it + // getting modified when the full name didn't. For example enum + // "StorageModes" has a value "retain". So the full name is + // "StorageModes_Retain", but if we sanitize "retain" it would become + // "RetainValue". + // So the right way to get the short name is to take the full enum name + // and then strip off the enum name (leaving the value name and anything + // done by sanitize). + const string& class_name = EnumName(descriptor->type()); + const string& long_name_prefix = class_name + "_"; + const string& long_name = EnumValueName(descriptor); + return StripPrefixString(long_name, long_name_prefix); +} + +string UnCamelCaseEnumShortName(const string& name) { + string result; + for (int i = 0; i < name.size(); i++) { + char c = name[i]; + if (i > 0 && ascii_isupper(c)) { + result += '_'; + } + result += ascii_toupper(c); + } + return result; +} + +string ExtensionMethodName(const FieldDescriptor* descriptor) { + const string& name = NameFromFieldDescriptor(descriptor); + const string& result = UnderscoresToCamelCase(name, false); + return SanitizeNameForObjC(result, "_Extension", NULL); +} + +string FieldName(const FieldDescriptor* field) { + const string& name = NameFromFieldDescriptor(field); + string result = UnderscoresToCamelCase(name, false); + if (field->is_repeated() && !field->is_map()) { + // Add "Array" before do check for reserved worlds. + result += "Array"; + } else { + // If it wasn't repeated, but ends in "Array", force on the _p suffix. + if (HasSuffixString(result, "Array")) { + result += "_p"; + } + } + return SanitizeNameForObjC(result, "_p", NULL); +} + +string FieldNameCapitalized(const FieldDescriptor* field) { + // Want the same suffix handling, so upcase the first letter of the other + // name. + string result = FieldName(field); + if (result.length() > 0) { + result[0] = ascii_toupper(result[0]); + } + return result; +} + +string OneofEnumName(const OneofDescriptor* descriptor) { + const Descriptor* fieldDescriptor = descriptor->containing_type(); + string name = ClassName(fieldDescriptor); + name += "_" + UnderscoresToCamelCase(descriptor->name(), true) + "_OneOfCase"; + // No sanitize needed because the OS never has names that end in _OneOfCase. + return name; +} + +string OneofName(const OneofDescriptor* descriptor) { + string name = UnderscoresToCamelCase(descriptor->name(), false); + // No sanitize needed because it gets OneOfCase added and that shouldn't + // ever conflict. + return name; +} + +string OneofNameCapitalized(const OneofDescriptor* descriptor) { + // Use the common handling and then up-case the first letter. + string result = OneofName(descriptor); + if (result.length() > 0) { + result[0] = ascii_toupper(result[0]); + } + return result; +} + +string UnCamelCaseFieldName(const string& name, const FieldDescriptor* field) { + string worker(name); + if (HasSuffixString(worker, "_p")) { + worker = StripSuffixString(worker, "_p"); + } + if (field->is_repeated() && HasSuffixString(worker, "Array")) { + worker = StripSuffixString(worker, "Array"); + } + if (field->type() == FieldDescriptor::TYPE_GROUP) { + if (worker.length() > 0) { + if (ascii_islower(worker[0])) { + worker[0] = ascii_toupper(worker[0]); + } + } + return worker; + } else { + string result; + for (int i = 0; i < worker.size(); i++) { + char c = worker[i]; + if (ascii_isupper(c)) { + if (i > 0) { + result += '_'; + } + result += ascii_tolower(c); + } else { + result += c; + } + } + return result; + } +} + +string 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"; + } + + // Some compilers report reaching end of function even though all cases of + // the enum are handed in the switch. + GOOGLE_LOG(FATAL) << "Can't get here."; + return NULL; +} + +ObjectiveCType GetObjectiveCType(FieldDescriptor::Type field_type) { + switch (field_type) { + case FieldDescriptor::TYPE_INT32: + case FieldDescriptor::TYPE_SINT32: + case FieldDescriptor::TYPE_SFIXED32: + return OBJECTIVECTYPE_INT32; + + case FieldDescriptor::TYPE_UINT32: + case FieldDescriptor::TYPE_FIXED32: + return OBJECTIVECTYPE_UINT32; + + case FieldDescriptor::TYPE_INT64: + case FieldDescriptor::TYPE_SINT64: + case FieldDescriptor::TYPE_SFIXED64: + return OBJECTIVECTYPE_INT64; + + case FieldDescriptor::TYPE_UINT64: + case FieldDescriptor::TYPE_FIXED64: + return OBJECTIVECTYPE_UINT64; + + case FieldDescriptor::TYPE_FLOAT: + return OBJECTIVECTYPE_FLOAT; + + case FieldDescriptor::TYPE_DOUBLE: + return OBJECTIVECTYPE_DOUBLE; + + case FieldDescriptor::TYPE_BOOL: + return OBJECTIVECTYPE_BOOLEAN; + + case FieldDescriptor::TYPE_STRING: + return OBJECTIVECTYPE_STRING; + + case FieldDescriptor::TYPE_BYTES: + return OBJECTIVECTYPE_DATA; + + case FieldDescriptor::TYPE_ENUM: + return OBJECTIVECTYPE_ENUM; + + case FieldDescriptor::TYPE_GROUP: + case FieldDescriptor::TYPE_MESSAGE: + return OBJECTIVECTYPE_MESSAGE; + } + + // Some compilers report reaching end of function even though all cases of + // the enum are handed in the switch. + GOOGLE_LOG(FATAL) << "Can't get here."; + return OBJECTIVECTYPE_INT32; +} + +bool IsPrimitiveType(const FieldDescriptor* field) { + ObjectiveCType type = GetObjectiveCType(field); + switch (type) { + case OBJECTIVECTYPE_INT32: + case OBJECTIVECTYPE_UINT32: + case OBJECTIVECTYPE_INT64: + case OBJECTIVECTYPE_UINT64: + case OBJECTIVECTYPE_FLOAT: + case OBJECTIVECTYPE_DOUBLE: + case OBJECTIVECTYPE_BOOLEAN: + case OBJECTIVECTYPE_ENUM: + return true; + break; + default: + return false; + } +} + +bool IsReferenceType(const FieldDescriptor* field) { + return !IsPrimitiveType(field); +} + +static string HandleExtremeFloatingPoint(string val, bool add_float_suffix) { + if (val == "nan") { + return "NAN"; + } else if (val == "inf") { + return "INFINITY"; + } else if (val == "-inf") { + return "-INFINITY"; + } else { + // float strings with ., e or E need to have f appended + if (add_float_suffix && + (val.find(".") != string::npos || val.find("e") != string::npos || + val.find("E") != string::npos)) { + val += "f"; + } + return val; + } +} + +string GPBGenericValueFieldName(const FieldDescriptor* field) { + // Returns the field within the GPBGenericValue union to use for the given + // field. + if (field->is_repeated()) { + return "valueMessage"; + } + switch (field->cpp_type()) { + case FieldDescriptor::CPPTYPE_INT32: + return "valueInt32"; + case FieldDescriptor::CPPTYPE_UINT32: + return "valueUInt32"; + case FieldDescriptor::CPPTYPE_INT64: + return "valueInt64"; + case FieldDescriptor::CPPTYPE_UINT64: + return "valueUInt64"; + case FieldDescriptor::CPPTYPE_FLOAT: + return "valueFloat"; + case FieldDescriptor::CPPTYPE_DOUBLE: + return "valueDouble"; + case FieldDescriptor::CPPTYPE_BOOL: + return "valueBool"; + case FieldDescriptor::CPPTYPE_STRING: + if (field->type() == FieldDescriptor::TYPE_BYTES) { + return "valueData"; + } else { + return "valueString"; + } + case FieldDescriptor::CPPTYPE_ENUM: + return "valueEnum"; + case FieldDescriptor::CPPTYPE_MESSAGE: + return "valueMessage"; + } + + // Some compilers report reaching end of function even though all cases of + // the enum are handed in the switch. + GOOGLE_LOG(FATAL) << "Can't get here."; + return NULL; +} + + +string DefaultValue(const FieldDescriptor* field) { + // Repeated fields don't have defaults. + if (field->is_repeated()) { + return "nil"; + } + + // Switch on cpp_type since we need to know which default_value_* method + // of FieldDescriptor to call. + switch (field->cpp_type()) { + case FieldDescriptor::CPPTYPE_INT32: + // gcc and llvm reject the decimal form of kint32min and kint64min. + if (field->default_value_int32() == INT_MIN) { + return "-0x80000000"; + } + return SimpleItoa(field->default_value_int32()); + case FieldDescriptor::CPPTYPE_UINT32: + return SimpleItoa(field->default_value_uint32()) + "U"; + case FieldDescriptor::CPPTYPE_INT64: + // gcc and llvm reject the decimal form of kint32min and kint64min. + if (field->default_value_int64() == LLONG_MIN) { + return "-0x8000000000000000LL"; + } + return SimpleItoa(field->default_value_int64()) + "LL"; + case FieldDescriptor::CPPTYPE_UINT64: + return SimpleItoa(field->default_value_uint64()) + "ULL"; + case FieldDescriptor::CPPTYPE_DOUBLE: + return HandleExtremeFloatingPoint( + SimpleDtoa(field->default_value_double()), false); + case FieldDescriptor::CPPTYPE_FLOAT: + return HandleExtremeFloatingPoint( + SimpleFtoa(field->default_value_float()), true); + case FieldDescriptor::CPPTYPE_BOOL: + return field->default_value_bool() ? "YES" : "NO"; + case FieldDescriptor::CPPTYPE_STRING: { + const bool has_default_value = field->has_default_value(); + const string& default_string = field->default_value_string(); + if (!has_default_value || default_string.length() == 0) { + // If the field is defined as being the empty string, + // then we will just assign to nil, as the empty string is the + // default for both strings and data. + return "nil"; + } + if (field->type() == FieldDescriptor::TYPE_BYTES) { + // We want constant fields in our data structures so we can + // declare them as static. To achieve this we cheat and stuff + // a escaped c string (prefixed with a length) into the data + // field, and cast it to an (NSData*) so it will compile. + // The runtime library knows how to handle it. + + // Must convert to a standard byte order for packing length into + // a cstring. + uint32 length = ghtonl(default_string.length()); + string bytes((const char*)&length, sizeof(length)); + bytes.append(default_string); + return "(NSData*)\"" + EscapeTrigraphs(CEscape(bytes)) + "\""; + } else { + return "@\"" + EscapeTrigraphs(CEscape(default_string)) + "\""; + } + } + case FieldDescriptor::CPPTYPE_ENUM: + return EnumValueName(field->default_value_enum()); + case FieldDescriptor::CPPTYPE_MESSAGE: + return "nil"; + } + + // Some compilers report reaching end of function even though all cases of + // the enum are handed in the switch. + GOOGLE_LOG(FATAL) << "Can't get here."; + return NULL; +} + +bool HasNonZeroDefaultValue(const FieldDescriptor* field) { + // Repeated fields don't have defaults. + if (field->is_repeated()) { + return false; + } + + // As much as checking field->has_default_value() seems useful, it isn't + // because of enums. proto2 syntax allows the first item in an enum (the + // default) to be non zero. So checking field->has_default_value() would + // result in missing this non zero default. See MessageWithOneBasedEnum in + // objectivec/Tests/unittest_objc.proto for a test Message to confirm this. + + // Some proto file set the default to the zero value, so make sure the value + // isn't the zero case. + switch (field->cpp_type()) { + case FieldDescriptor::CPPTYPE_INT32: + return field->default_value_int32() != 0; + case FieldDescriptor::CPPTYPE_UINT32: + return field->default_value_uint32() != 0U; + case FieldDescriptor::CPPTYPE_INT64: + return field->default_value_int64() != 0LL; + case FieldDescriptor::CPPTYPE_UINT64: + return field->default_value_uint64() != 0ULL; + case FieldDescriptor::CPPTYPE_DOUBLE: + return field->default_value_double() != 0.0; + case FieldDescriptor::CPPTYPE_FLOAT: + return field->default_value_float() != 0.0f; + case FieldDescriptor::CPPTYPE_BOOL: + return field->default_value_bool(); + case FieldDescriptor::CPPTYPE_STRING: { + const string& default_string = field->default_value_string(); + return default_string.length() != 0; + } + case FieldDescriptor::CPPTYPE_ENUM: + return field->default_value_enum()->number() != 0; + case FieldDescriptor::CPPTYPE_MESSAGE: + return false; + } + + // Some compilers report reaching end of function even though all cases of + // the enum are handed in the switch. + GOOGLE_LOG(FATAL) << "Can't get here."; + return false; +} + +string BuildFlagsString(const FlagType flag_type, + const vector<string>& strings) { + if (strings.size() == 0) { + return GetZeroEnumNameForFlagType(flag_type); + } else if (strings.size() == 1) { + return strings[0]; + } + string string("(" + GetEnumNameForFlagType(flag_type) + ")("); + for (size_t i = 0; i != strings.size(); ++i) { + if (i > 0) { + string.append(" | "); + } + string.append(strings[i]); + } + string.append(")"); + return string; +} + +string BuildCommentsString(const SourceLocation& location, + bool prefer_single_line) { + const string& comments = location.leading_comments.empty() + ? location.trailing_comments + : location.leading_comments; + vector<string> lines; + SplitStringAllowEmpty(comments, "\n", &lines); + while (!lines.empty() && lines.back().empty()) { + lines.pop_back(); + } + // If there are no comments, just return an empty string. + if (lines.size() == 0) { + return ""; + } + + string prefix; + string suffix; + string final_comments; + string epilogue; + + bool add_leading_space = false; + + if (prefer_single_line && lines.size() == 1) { + prefix = "/** "; + suffix = " */\n"; + } else { + prefix = "* "; + suffix = "\n"; + final_comments += "/**\n"; + epilogue = " **/\n"; + add_leading_space = true; + } + + for (int i = 0; i < lines.size(); i++) { + string line = StripPrefixString(lines[i], " "); + // HeaderDoc and appledoc use '\' and '@' for markers; escape them. + line = StringReplace(line, "\\", "\\\\", true); + line = StringReplace(line, "@", "\\@", true); + // Decouple / from * to not have inline comments inside comments. + line = StringReplace(line, "/*", "/\\*", true); + line = StringReplace(line, "*/", "*\\/", true); + line = prefix + line; + StripWhitespace(&line); + // If not a one line, need to add the first space before *, as + // StripWhitespace would have removed it. + line = (add_leading_space ? " " : "") + line; + final_comments += line + suffix; + } + final_comments += epilogue; + return final_comments; +} + +// Making these a generator option for folks that don't use CocoaPods, but do +// want to put the library in a framework is an interesting question. The +// problem is it means changing sources shipped with the library to actually +// use a different value; so it isn't as simple as a option. +const char* const ProtobufLibraryFrameworkName = "Protobuf"; + +string ProtobufFrameworkImportSymbol(const string& framework_name) { + // GPB_USE_[framework_name]_FRAMEWORK_IMPORTS + string result = string("GPB_USE_"); + result += ToUpper(framework_name); + result += "_FRAMEWORK_IMPORTS"; + return result; +} + +bool IsProtobufLibraryBundledProtoFile(const FileDescriptor* file) { + // We don't check the name prefix or proto package because some files + // (descriptor.proto), aren't shipped generated by the library, so this + // seems to be the safest way to only catch the ones shipped. + const string name = file->name(); + if (name == "google/protobuf/any.proto" || + name == "google/protobuf/api.proto" || + name == "google/protobuf/duration.proto" || + name == "google/protobuf/empty.proto" || + name == "google/protobuf/field_mask.proto" || + name == "google/protobuf/source_context.proto" || + name == "google/protobuf/struct.proto" || + name == "google/protobuf/timestamp.proto" || + name == "google/protobuf/type.proto" || + name == "google/protobuf/wrappers.proto") { + return true; + } + return false; +} + +bool ReadLine(StringPiece* input, StringPiece* line) { + for (int len = 0; len < input->size(); ++len) { + if (ascii_isnewline((*input)[len])) { + *line = StringPiece(input->data(), len); + ++len; // advance over the newline + *input = StringPiece(input->data() + len, input->size() - len); + return true; + } + } + return false; // Ran out of input with no newline. +} + +void RemoveComment(StringPiece* input) { + int offset = input->find('#'); + if (offset != StringPiece::npos) { + input->remove_suffix(input->length() - offset); + } +} + +namespace { + +class ExpectedPrefixesCollector : public LineConsumer { + public: + ExpectedPrefixesCollector(std::map<string, string>* inout_package_to_prefix_map) + : prefix_map_(inout_package_to_prefix_map) {} + + virtual bool ConsumeLine(const StringPiece& line, string* out_error); + + private: + std::map<string, string>* prefix_map_; +}; + +bool ExpectedPrefixesCollector::ConsumeLine( + const StringPiece& line, string* out_error) { + int offset = line.find('='); + if (offset == StringPiece::npos) { + *out_error = + string("Expected prefixes file line without equal sign: '") + + line.ToString() + "'."; + return false; + } + StringPiece package(line, 0, offset); + StringPiece prefix(line, offset + 1, line.length() - offset - 1); + StringPieceTrimWhitespace(&package); + StringPieceTrimWhitespace(&prefix); + // Don't really worry about error checking the package/prefix for + // being valid. Assume the file is validated when it is created/edited. + (*prefix_map_)[package.ToString()] = prefix.ToString(); + return true; +} + +bool LoadExpectedPackagePrefixes(const Options &generation_options, + std::map<string, string>* prefix_map, + string* out_error) { + if (generation_options.expected_prefixes_path.empty()) { + return true; + } + + ExpectedPrefixesCollector collector(prefix_map); + return ParseSimpleFile( + generation_options.expected_prefixes_path, &collector, out_error); +} + +bool ValidateObjCClassPrefix( + const FileDescriptor* file, + const string& expected_prefixes_path, + const std::map<string, string>& expected_package_prefixes, + string* out_error) { + const string prefix = file->options().objc_class_prefix(); + const string package = file->package(); + + // NOTE: src/google/protobuf/compiler/plugin.cc makes use of cerr for some + // error cases, so it seems to be ok to use as a back door for warnings. + + // Check: Error - See if there was an expected prefix for the package and + // report if it doesn't match (wrong or missing). + std::map<string, string>::const_iterator package_match = + expected_package_prefixes.find(package); + if (package_match != expected_package_prefixes.end()) { + // There was an entry, and... + if (package_match->second == prefix) { + // ...it matches. All good, out of here! + return true; + } else { + // ...it didn't match! + *out_error = "error: Expected 'option objc_class_prefix = \"" + + package_match->second + "\";' for package '" + package + + "' in '" + file->name() + "'"; + if (prefix.length()) { + *out_error += "; but found '" + prefix + "' instead"; + } + *out_error += "."; + return false; + } + } + + // If there was no prefix option, we're done at this point. + if (prefix.empty()) { + // No prefix, nothing left to check. + return true; + } + + // Check: Warning - Make sure the prefix is is a reasonable value according + // to Apple's rules (the checks above implicitly whitelist anything that + // doesn't meet these rules). + if (!ascii_isupper(prefix[0])) { + std::cerr << std::endl + << "protoc:0: warning: Invalid 'option objc_class_prefix = \"" + << prefix << "\";' in '" << file->name() << "';" + << " it should start with a capital letter." << std::endl; + std::cerr.flush(); + } + if (prefix.length() < 3) { + // Apple reserves 2 character prefixes for themselves. They do use some + // 3 character prefixes, but they haven't updated the rules/docs. + std::cerr << std::endl + << "protoc:0: warning: Invalid 'option objc_class_prefix = \"" + << prefix << "\";' in '" << file->name() << "';" + << " Apple recommends they should be at least 3 characters long." + << std::endl; + std::cerr.flush(); + } + + // Look for any other package that uses the same prefix. + string other_package_for_prefix; + for (std::map<string, string>::const_iterator i = expected_package_prefixes.begin(); + i != expected_package_prefixes.end(); ++i) { + if (i->second == prefix) { + other_package_for_prefix = i->first; + break; + } + } + + // Check: Warning - If the file does not have a package, check whether + // the prefix declared is being used by another package or not. + if (package.empty()) { + // The file does not have a package and ... + if (other_package_for_prefix.empty()) { + // ... no other package has declared that prefix. + std::cerr << std::endl + << "protoc:0: warning: File '" << file->name() << "' has no " + << "package. Consider adding a new package to the proto and adding '" + << "new.package = " << prefix << "' to the expected prefixes file (" + << expected_prefixes_path << ")." << std::endl; + std::cerr.flush(); + } else { + // ... another package has declared the same prefix. + std::cerr << std::endl + << "protoc:0: warning: File '" << file->name() << "' has no package " + << "and package '" << other_package_for_prefix << "' already uses '" + << prefix << "' as its prefix. Consider either adding a new package " + << "to the proto, or reusing one of the packages already using this " + << "prefix in the expected prefixes file (" + << expected_prefixes_path << ")." << std::endl; + std::cerr.flush(); + } + return true; + } + + // Check: Error - Make sure the prefix wasn't expected for a different + // package (overlap is allowed, but it has to be listed as an expected + // overlap). + if (!other_package_for_prefix.empty()) { + *out_error = + "error: Found 'option objc_class_prefix = \"" + prefix + + "\";' in '" + file->name() + + "'; that prefix is already used for 'package " + + other_package_for_prefix + ";'. It can only be reused by listing " + + "it in the expected file (" + + expected_prefixes_path + ")."; + return false; // Only report first usage of the prefix. + } + + // Check: Warning - If the given package/prefix pair wasn't expected, issue a + // warning issue a warning suggesting it gets added to the file. + if (!expected_package_prefixes.empty()) { + std::cerr << std::endl + << "protoc:0: warning: Found unexpected 'option objc_class_prefix = \"" + << prefix << "\";' in '" << file->name() << "';" + << " consider adding it to the expected prefixes file (" + << expected_prefixes_path << ")." << std::endl; + std::cerr.flush(); + } + + return true; +} + +} // namespace + +bool ValidateObjCClassPrefixes(const vector<const FileDescriptor*>& files, + const Options& generation_options, + string* out_error) { + // Load the expected package prefixes, if available, to validate against. + std::map<string, string> expected_package_prefixes; + if (!LoadExpectedPackagePrefixes(generation_options, + &expected_package_prefixes, + out_error)) { + return false; + } + + for (int i = 0; i < files.size(); i++) { + bool is_valid = + ValidateObjCClassPrefix(files[i], + generation_options.expected_prefixes_path, + expected_package_prefixes, + out_error); + if (!is_valid) { + return false; + } + } + return true; +} + +TextFormatDecodeData::TextFormatDecodeData() { } + +TextFormatDecodeData::~TextFormatDecodeData() { } + +void TextFormatDecodeData::AddString(int32 key, + const string& input_for_decode, + const string& desired_output) { + for (vector<DataEntry>::const_iterator i = entries_.begin(); + i != entries_.end(); ++i) { + if (i->first == key) { + std::cerr << "error: duplicate key (" << key + << ") making TextFormat data, input: \"" << input_for_decode + << "\", desired: \"" << desired_output << "\"." << std::endl; + std::cerr.flush(); + abort(); + } + } + + const string& data = TextFormatDecodeData::DecodeDataForString( + input_for_decode, desired_output); + entries_.push_back(DataEntry(key, data)); +} + +string TextFormatDecodeData::Data() const { + std::ostringstream data_stringstream; + + if (num_entries() > 0) { + io::OstreamOutputStream data_outputstream(&data_stringstream); + io::CodedOutputStream output_stream(&data_outputstream); + + output_stream.WriteVarint32(num_entries()); + for (vector<DataEntry>::const_iterator i = entries_.begin(); + i != entries_.end(); ++i) { + output_stream.WriteVarint32(i->first); + output_stream.WriteString(i->second); + } + } + + data_stringstream.flush(); + return data_stringstream.str(); +} + +namespace { + +// Helper to build up the decode data for a string. +class DecodeDataBuilder { + public: + DecodeDataBuilder() { Reset(); } + + bool AddCharacter(const char desired, const char input); + void AddUnderscore() { + Push(); + need_underscore_ = true; + } + string Finish() { + Push(); + return decode_data_; + } + + private: + static const uint8 kAddUnderscore = 0x80; + + static const uint8 kOpAsIs = 0x00; + static const uint8 kOpFirstUpper = 0x40; + static const uint8 kOpFirstLower = 0x20; + static const uint8 kOpAllUpper = 0x60; + + static const int kMaxSegmentLen = 0x1f; + + void AddChar(const char desired) { + ++segment_len_; + is_all_upper_ &= ascii_isupper(desired); + } + + void Push() { + uint8 op = (op_ | segment_len_); + if (need_underscore_) op |= kAddUnderscore; + if (op != 0) { + decode_data_ += (char)op; + } + Reset(); + } + + bool AddFirst(const char desired, const char input) { + if (desired == input) { + op_ = kOpAsIs; + } else if (desired == ascii_toupper(input)) { + op_ = kOpFirstUpper; + } else if (desired == ascii_tolower(input)) { + op_ = kOpFirstLower; + } else { + // Can't be transformed to match. + return false; + } + AddChar(desired); + return true; + } + + void Reset() { + need_underscore_ = false; + op_ = 0; + segment_len_ = 0; + is_all_upper_ = true; + } + + bool need_underscore_; + bool is_all_upper_; + uint8 op_; + int segment_len_; + + string decode_data_; +}; + +bool DecodeDataBuilder::AddCharacter(const char desired, const char input) { + // If we've hit the max size, push to start a new segment. + if (segment_len_ == kMaxSegmentLen) { + Push(); + } + if (segment_len_ == 0) { + return AddFirst(desired, input); + } + + // Desired and input match... + if (desired == input) { + // If we aren't transforming it, or we're upper casing it and it is + // supposed to be uppercase; just add it to the segment. + if ((op_ != kOpAllUpper) || ascii_isupper(desired)) { + AddChar(desired); + return true; + } + + // Add the current segment, and start the next one. + Push(); + return AddFirst(desired, input); + } + + // If we need to uppercase, and everything so far has been uppercase, + // promote op to AllUpper. + if ((desired == ascii_toupper(input)) && is_all_upper_) { + op_ = kOpAllUpper; + AddChar(desired); + return true; + } + + // Give up, push and start a new segment. + Push(); + return AddFirst(desired, input); +} + +// If decode data can't be generated, a directive for the raw string +// is used instead. +string DirectDecodeString(const string& str) { + string result; + result += (char)'\0'; // Marker for full string. + result += str; + result += (char)'\0'; // End of string. + return result; +} + +} // namespace + +// static +string TextFormatDecodeData::DecodeDataForString(const string& input_for_decode, + const string& desired_output) { + if ((input_for_decode.size() == 0) || (desired_output.size() == 0)) { + std::cerr << "error: got empty string for making TextFormat data, input: \"" + << input_for_decode << "\", desired: \"" << desired_output << "\"." + << std::endl; + std::cerr.flush(); + abort(); + } + if ((input_for_decode.find('\0') != string::npos) || + (desired_output.find('\0') != string::npos)) { + std::cerr << "error: got a null char in a string for making TextFormat data," + << " input: \"" << CEscape(input_for_decode) << "\", desired: \"" + << CEscape(desired_output) << "\"." << std::endl; + std::cerr.flush(); + abort(); + } + + DecodeDataBuilder builder; + + // Walk the output building it from the input. + int x = 0; + for (int y = 0; y < desired_output.size(); y++) { + const char d = desired_output[y]; + if (d == '_') { + builder.AddUnderscore(); + continue; + } + + if (x >= input_for_decode.size()) { + // Out of input, no way to encode it, just return a full decode. + return DirectDecodeString(desired_output); + } + if (builder.AddCharacter(d, input_for_decode[x])) { + ++x; // Consumed one input + } else { + // Couldn't transform for the next character, just return a full decode. + return DirectDecodeString(desired_output); + } + } + + if (x != input_for_decode.size()) { + // Extra input (suffix from name sanitizing?), just return a full decode. + return DirectDecodeString(desired_output); + } + + // Add the end marker. + return builder.Finish() + (char)'\0'; +} + +namespace { + +class Parser { + public: + Parser(LineConsumer* line_consumer) + : line_consumer_(line_consumer), line_(0) {} + + // Parses a check of input, returning success/failure. + bool ParseChunk(StringPiece chunk); + + // Should be called to finish parsing (after all input has been provided via + // ParseChunk()). Returns success/failure. + bool Finish(); + + int last_line() const { return line_; } + string error_str() const { return error_str_; } + + private: + bool ParseLoop(); + + LineConsumer* line_consumer_; + int line_; + string error_str_; + StringPiece p_; + string leftover_; +}; + +bool Parser::ParseChunk(StringPiece chunk) { + if (!leftover_.empty()) { + chunk.AppendToString(&leftover_); + p_ = StringPiece(leftover_); + } else { + p_ = chunk; + } + bool result = ParseLoop(); + if (p_.empty()) { + leftover_.clear(); + } else { + leftover_ = p_.ToString(); + } + return result; +} + +bool Parser::Finish() { + if (leftover_.empty()) { + return true; + } + // Force a newline onto the end to finish parsing. + leftover_ += "\n"; + p_ = StringPiece(leftover_); + if (!ParseLoop()) { + return false; + } + return p_.empty(); // Everything used? +} + +bool Parser::ParseLoop() { + StringPiece line; + while (ReadLine(&p_, &line)) { + ++line_; + RemoveComment(&line); + StringPieceTrimWhitespace(&line); + if (line.size() == 0) { + continue; // Blank line. + } + if (!line_consumer_->ConsumeLine(line, &error_str_)) { + return false; + } + } + return true; +} + +} // namespace + +LineConsumer::LineConsumer() {} + +LineConsumer::~LineConsumer() {} + +bool ParseSimpleFile( + const string& path, LineConsumer* line_consumer, string* out_error) { + int fd; + do { + fd = open(path.c_str(), O_RDONLY); + } while (fd < 0 && errno == EINTR); + if (fd < 0) { + *out_error = + string("error: Unable to open \"") + path + "\", " + strerror(errno); + return false; + } + io::FileInputStream file_stream(fd); + file_stream.SetCloseOnDelete(true); + + Parser parser(line_consumer); + const void* buf; + int buf_len; + while (file_stream.Next(&buf, &buf_len)) { + if (buf_len == 0) { + continue; + } + + if (!parser.ParseChunk(StringPiece(static_cast<const char*>(buf), buf_len))) { + *out_error = + string("error: ") + path + + " Line " + SimpleItoa(parser.last_line()) + ", " + parser.error_str(); + return false; + } + } + return parser.Finish(); +} + +ImportWriter::ImportWriter( + const string& generate_for_named_framework, + const string& named_framework_to_proto_path_mappings_path) + : generate_for_named_framework_(generate_for_named_framework), + named_framework_to_proto_path_mappings_path_( + named_framework_to_proto_path_mappings_path), + need_to_parse_mapping_file_(true) { +} + +ImportWriter::~ImportWriter() {} + +void ImportWriter::AddFile(const FileDescriptor* file, + const string& header_extension) { + const string file_path(FilePath(file)); + + if (IsProtobufLibraryBundledProtoFile(file)) { + protobuf_framework_imports_.push_back( + FilePathBasename(file) + header_extension); + protobuf_non_framework_imports_.push_back(file_path + header_extension); + return; + } + + // Lazy parse any mappings. + if (need_to_parse_mapping_file_) { + ParseFrameworkMappings(); + } + + std::map<string, string>::iterator proto_lookup = + proto_file_to_framework_name_.find(file->name()); + if (proto_lookup != proto_file_to_framework_name_.end()) { + other_framework_imports_.push_back( + proto_lookup->second + "/" + + FilePathBasename(file) + header_extension); + return; + } + + if (!generate_for_named_framework_.empty()) { + other_framework_imports_.push_back( + generate_for_named_framework_ + "/" + + FilePathBasename(file) + header_extension); + return; + } + + other_imports_.push_back(file_path + header_extension); +} + +void ImportWriter::Print(io::Printer* printer) const { + assert(protobuf_non_framework_imports_.size() == + protobuf_framework_imports_.size()); + + bool add_blank_line = false; + + if (protobuf_framework_imports_.size() > 0) { + const string framework_name(ProtobufLibraryFrameworkName); + const string cpp_symbol(ProtobufFrameworkImportSymbol(framework_name)); + + printer->Print( + "#if $cpp_symbol$\n", + "cpp_symbol", cpp_symbol); + for (vector<string>::const_iterator iter = protobuf_framework_imports_.begin(); + iter != protobuf_framework_imports_.end(); ++iter) { + printer->Print( + " #import <$framework_name$/$header$>\n", + "framework_name", framework_name, + "header", *iter); + } + printer->Print( + "#else\n"); + for (vector<string>::const_iterator iter = protobuf_non_framework_imports_.begin(); + iter != protobuf_non_framework_imports_.end(); ++iter) { + printer->Print( + " #import \"$header$\"\n", + "header", *iter); + } + printer->Print( + "#endif\n"); + + add_blank_line = true; + } + + if (other_framework_imports_.size() > 0) { + if (add_blank_line) { + printer->Print("\n"); + } + + for (vector<string>::const_iterator iter = other_framework_imports_.begin(); + iter != other_framework_imports_.end(); ++iter) { + printer->Print( + " #import <$header$>\n", + "header", *iter); + } + + add_blank_line = true; + } + + if (other_imports_.size() > 0) { + if (add_blank_line) { + printer->Print("\n"); + } + + for (vector<string>::const_iterator iter = other_imports_.begin(); + iter != other_imports_.end(); ++iter) { + printer->Print( + " #import \"$header$\"\n", + "header", *iter); + } + } +} + +void ImportWriter::ParseFrameworkMappings() { + need_to_parse_mapping_file_ = false; + if (named_framework_to_proto_path_mappings_path_.empty()) { + return; // Nothing to do. + } + + ProtoFrameworkCollector collector(&proto_file_to_framework_name_); + string parse_error; + if (!ParseSimpleFile(named_framework_to_proto_path_mappings_path_, + &collector, &parse_error)) { + std::cerr << "error parsing " << named_framework_to_proto_path_mappings_path_ + << " : " << parse_error << std::endl; + std::cerr.flush(); + } +} + +bool ImportWriter::ProtoFrameworkCollector::ConsumeLine( + const StringPiece& line, string* out_error) { + int offset = line.find(':'); + if (offset == StringPiece::npos) { + *out_error = + string("Framework/proto file mapping line without colon sign: '") + + line.ToString() + "'."; + return false; + } + StringPiece framework_name(line, 0, offset); + StringPiece proto_file_list(line, offset + 1, line.length() - offset - 1); + StringPieceTrimWhitespace(&framework_name); + + int start = 0; + while (start < proto_file_list.length()) { + offset = proto_file_list.find(',', start); + if (offset == StringPiece::npos) { + offset = proto_file_list.length(); + } + + StringPiece proto_file(proto_file_list, start, offset - start); + StringPieceTrimWhitespace(&proto_file); + if (proto_file.size() != 0) { + std::map<string, string>::iterator existing_entry = + map_->find(proto_file.ToString()); + if (existing_entry != map_->end()) { + std::cerr << "warning: duplicate proto file reference, replacing framework entry for '" + << proto_file.ToString() << "' with '" << framework_name.ToString() + << "' (was '" << existing_entry->second << "')." << std::endl; + std::cerr.flush(); + } + + if (proto_file.find(' ') != StringPiece::npos) { + std::cerr << "note: framework mapping file had a proto file with a space in, hopefully that isn't a missing comma: '" + << proto_file.ToString() << "'" << std::endl; + std::cerr.flush(); + } + + (*map_)[proto_file.ToString()] = framework_name.ToString(); + } + + start = offset + 1; + } + + return true; +} + + +} // namespace objectivec +} // namespace compiler +} // namespace protobuf +} // namespace google |