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Breaking Change: Remove deprecated legacy class aliases. #15709

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merged 1 commit into from
Feb 5, 2024
Merged

Breaking Change: Remove deprecated legacy class aliases. #15709

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60 changes: 0 additions & 60 deletions php/tests/GeneratedClassTest.php
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Original file line number Diff line number Diff line change
Expand Up @@ -6,16 +6,12 @@
use Google\Protobuf\Internal\RepeatedField;
use Google\Protobuf\Internal\MapField;
use Google\Protobuf\Internal\GPBType;
use Bar\TestLegacyMessage;
use Bar\TestLegacyMessage_NestedEnum;
use Bar\TestLegacyMessage_NestedMessage;
use Foo\Test32Fields;
use Foo\TestEnum;
use Foo\TestIncludeNamespaceMessage;
use Foo\TestIncludePrefixMessage;
use Foo\TestMessage;
use Foo\TestMessage\Sub;
use Foo\TestMessage_Sub;
use Foo\TestMessage\NestedEnum;
use Foo\TestReverseFieldOrder;
use Foo\testLowerCaseMessage;
Expand Down Expand Up @@ -322,37 +318,6 @@ public function testNestedEnum()
$this->assertTrue(true);
}

public function testLegacyNestedEnum()
{
$m = new TestMessage();
$m->setOptionalNestedEnum(\Foo\TestMessage_NestedEnum::ZERO);
$this->assertTrue(true);
}

public function testLegacyTypehintWithNestedEnums()
{
$this->legacyEnum(new TestLegacyMessage\NestedEnum);
}

public function testLegacyReadOnlyMessage()
{
$this->assertTrue(class_exists('\Upper\READONLY'));
$this->assertTrue(class_exists('\Lower\readonly'));
$this->assertTrue(class_exists('\Php\Test\TestNamespace\PBEmpty\ReadOnly'));
}

public function testLegacyReadOnlyEnum()
{
$this->assertTrue(class_exists('\Upper_enum\READONLY'));
$this->assertTrue(class_exists('\Lower_enum\readonly'));
}

private function legacyEnum(TestLegacyMessage_NestedEnum $enum)
{
// If we made it here without a PHP Fatal error, the typehint worked
$this->assertTrue(true);
}

#########################################################
# Test float field.
#########################################################
Expand Down Expand Up @@ -516,31 +481,6 @@ public function testMessageField()
$this->assertFalse($m->hasOptionalMessage());
}

public function testLegacyMessageField()
{
$m = new TestMessage();

$sub_m = new TestMessage_Sub();
$sub_m->setA(1);
$m->setOptionalMessage($sub_m);
$this->assertSame(1, $m->getOptionalMessage()->getA());

$null = null;
$m->setOptionalMessage($null);
$this->assertNull($m->getOptionalMessage());
}

public function testLegacyTypehintWithNestedMessages()
{
$this->legacyMessage(new TestLegacyMessage\NestedMessage);
}

private function legacyMessage(TestLegacyMessage_NestedMessage $sub)
{
// If we made it here without a PHP Fatal error, the typehint worked
$this->assertTrue(true);
}

#########################################################
# Test repeated field.
#########################################################
Expand Down
11 changes: 0 additions & 11 deletions php/tests/proto/test_include.proto
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Original file line number Diff line number Diff line change
Expand Up @@ -5,14 +5,3 @@ package bar;
message TestInclude {
int32 a = 1;
}

message TestLegacyMessage {
NestedMessage message = 1;
NestedEnum enum = 2;
message NestedMessage {
int32 a = 1;
}
enum NestedEnum {
ZERO = 0;
}
}
171 changes: 0 additions & 171 deletions src/google/protobuf/compiler/php/php_generator.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -103,17 +103,6 @@ std::string DescriptorFullName(const DescriptorType* desc, bool is_internal) {
return std::string(full_name);
}

template <typename DescriptorType>
std::string LegacyGeneratedClassName(const DescriptorType* desc) {
std::string classname = desc->name();
const Descriptor* containing = desc->containing_type();
while (containing != NULL) {
classname = containing->name() + '_' + classname;
containing = containing->containing_type();
}
return ClassNamePrefix(classname, desc) + classname;
}

std::string ConstantNamePrefix(absl::string_view classname) {
bool is_reserved = false;

Expand Down Expand Up @@ -170,17 +159,6 @@ std::string FullClassName(const DescriptorType* desc, bool is_descriptor) {
return FullClassName(desc, options);
}

template <typename DescriptorType>
std::string LegacyFullClassName(const DescriptorType* desc,
const Options& options) {
std::string classname = LegacyGeneratedClassName(desc);
std::string php_namespace = RootPhpNamespace(desc, options);
if (!php_namespace.empty()) {
return absl::StrCat(php_namespace, "\\", classname);
}
return classname;
}

std::string PhpNamePrefix(absl::string_view classname) {
if (IsReservedName(classname)) return "PB";
return "";
Expand Down Expand Up @@ -321,34 +299,6 @@ std::string GeneratedClassFileName(const DescriptorType* desc,
return absl::StrCat(result, ".php");
}

template <typename DescriptorType>
std::string LegacyGeneratedClassFileName(const DescriptorType* desc,
const Options& options) {
std::string result = LegacyFullClassName(desc, options);

for (int i = 0; i < result.size(); i++) {
if (result[i] == '\\') {
result[i] = '/';
}
}
return absl::StrCat(result, ".php");
}

template <typename DescriptorType>
std::string LegacyReadOnlyGeneratedClassFileName(std::string php_namespace,
const DescriptorType* desc) {
if (!php_namespace.empty()) {
for (int i = 0; i < php_namespace.size(); i++) {
if (php_namespace[i] == '\\') {
php_namespace[i] = '/';
}
}
return absl::StrCat(php_namespace, "/", desc->name(), ".php");
}

return absl::StrCat(desc->name(), ".php");
}

std::string IntToString(int32_t value) {
std::ostringstream os;
os << value;
Expand Down Expand Up @@ -1168,83 +1118,6 @@ void GenerateMetadataFile(const FileDescriptor* file, const Options& options,
printer.Print("}\n\n");
}

template <typename DescriptorType>
void LegacyGenerateClassFile(const FileDescriptor* file,
const DescriptorType* desc, const Options& options,
GeneratorContext* generator_context) {
std::string filename = LegacyGeneratedClassFileName(desc, options);
std::unique_ptr<io::ZeroCopyOutputStream> output(
generator_context->Open(filename));
io::Printer printer(output.get(), '^');

GenerateHead(file, &printer);

std::string php_namespace = RootPhpNamespace(desc, options);
if (!php_namespace.empty()) {
printer.Print("namespace ^name^;\n\n", "name", php_namespace);
}
std::string newname = FullClassName(desc, options);
printer.Print("if (false) {\n");
Indent(&printer);
printer.Print("/**\n");
printer.Print(" * This class is deprecated. Use ^new^ instead.\n", "new",
newname);
printer.Print(" * @deprecated\n");
printer.Print(" */\n");
printer.Print("class ^old^ {}\n", "old", LegacyGeneratedClassName(desc));
Outdent(&printer);
printer.Print("}\n");
printer.Print("class_exists(^new^::class);\n", "new",
GeneratedClassName(desc));
printer.Print(
"@trigger_error('^old^ is deprecated and will be removed in "
"the next major release. Use ^fullname^ instead', "
"E_USER_DEPRECATED);\n\n",
"old", LegacyFullClassName(desc, options), "fullname", newname);
}

template <typename DescriptorType>
void LegacyReadOnlyGenerateClassFile(const FileDescriptor* file,
const DescriptorType* desc,
const Options& options,
GeneratorContext* generator_context) {
std::string fullname = FullClassName(desc, options);
std::string php_namespace;
std::string classname;
int lastindex = fullname.find_last_of("\\");

if (lastindex != std::string::npos) {
php_namespace = fullname.substr(0, lastindex);
classname = fullname.substr(lastindex + 1);
} else {
php_namespace = "";
classname = fullname;
}

std::string filename =
LegacyReadOnlyGeneratedClassFileName(php_namespace, desc);
std::unique_ptr<io::ZeroCopyOutputStream> output(
generator_context->Open(filename));
io::Printer printer(output.get(), '^');

GenerateHead(file, &printer);

if (!php_namespace.empty()) {
printer.Print("namespace ^name^;\n\n", "name", php_namespace);
}

printer.Print(
"class_exists(^new^::class); // autoload the new class, which "
"will also create an alias to the deprecated class\n",
"new", classname);
printer.Print(
"@trigger_error(__NAMESPACE__ . '\\^old^ is deprecated and will be "
"removed in "
"the next major release. Use ^fullname^ instead', "
"E_USER_DEPRECATED);\n\n",
"old", desc->name(), "fullname", classname);
}

bool GenerateEnumFile(const FileDescriptor* file, const EnumDescriptor* en,
const Options& options,
GeneratorContext* generator_context, std::string* error) {
Expand Down Expand Up @@ -1369,28 +1242,6 @@ bool GenerateEnumFile(const FileDescriptor* file, const EnumDescriptor* en,
Outdent(&printer);
printer.Print("}\n\n");

// write legacy alias for backwards compatibility with nested messages and
// enums
if (en->containing_type() != NULL) {
printer.Print(
"// Adding a class alias for backwards compatibility with the previous "
"class name.\n");
printer.Print("class_alias(^new^::class, \\^old^::class);\n\n", "new",
fullname, "old", LegacyFullClassName(en, options));
}

// Write legacy file for backwards compatibility with "readonly" keywword
std::string lower = en->name();
std::transform(lower.begin(), lower.end(), lower.begin(), ::tolower);
if (lower == "readonly") {
printer.Print(
"// Adding a class alias for backwards compatibility with the "
"\"readonly\" keyword.\n");
printer.Print("class_alias(^new^::class, __NAMESPACE__ . '\\^old^');\n\n",
"new", fullname, "old", en->name());
LegacyReadOnlyGenerateClassFile(file, en, options, generator_context);
}

return true;
}

Expand Down Expand Up @@ -1494,28 +1345,6 @@ bool GenerateMessageFile(const FileDescriptor* file, const Descriptor* message,
Outdent(&printer);
printer.Print("}\n\n");

// write legacy alias for backwards compatibility with nested messages and
// enums
if (message->containing_type() != NULL) {
printer.Print(
"// Adding a class alias for backwards compatibility with the previous "
"class name.\n");
printer.Print("class_alias(^new^::class, \\^old^::class);\n\n", "new",
fullname, "old", LegacyFullClassName(message, options));
}

// Write legacy file for backwards compatibility with "readonly" keywword
std::string lower = message->name();
std::transform(lower.begin(), lower.end(), lower.begin(), ::tolower);
if (lower == "readonly") {
printer.Print(
"// Adding a class alias for backwards compatibility with the "
"\"readonly\" keyword.\n");
printer.Print("class_alias(^new^::class, __NAMESPACE__ . '\\^old^');\n\n",
"new", fullname, "old", message->name());
LegacyReadOnlyGenerateClassFile(file, message, options, generator_context);
}

// Nested messages and enums.
for (int i = 0; i < message->nested_type_count(); i++) {
if (!GenerateMessageFile(file, message->nested_type(i), options,
Expand Down
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