protected function generateSourceCode(ParsedType $type, SourceBuffer $buffer, \SplFileInfo $file)
{
$extends = array_map(function ($t) {
return '\\' . ltrim($t, '\\');
}, $type->getExtends());
$extends = empty($extends) ? '' : implode(', ', $extends);
$implements = ['\\' . MergedSourceInterface::class];
// Double inclusion safeguard:
if ($type->isClass()) {
$safe1 = sprintf(' if(!class_exists(%s, false)) { ', var_export($type->getName(), true));
$safe2 = ' } ';
} elseif ($type->isInterface()) {
$safe1 = sprintf(' if(!interface_exists(%s, false)) { ', var_export($type->getName(), true));
$safe2 = ' } ';
} else {
$safe1 = sprintf(' if(!trait_exists(%s, false)) { ', var_export($type->getName(), true));
$safe2 = ' } ';
}
$generator = new SourceGenerator($buffer);
$generator->populateTypeMarker($type, ParsedType::MARKER_INTRODUCED_INTERFACES, implode(', ', $implements));
$generator->populateTypeMarker($type, ParsedType::MARKER_INTRODUCED_NAME, $type->getLocalName());
$generator->populateTypeMarker($type, ParsedType::MARKER_INTRODUCED_SUPERCLASS, $extends);
$generator->populateTypeMarker($type, ParsedType::MARKER_INTRODUCED_PREPENDED_CODE, $safe1);
$generator->populateTypeMarker($type, ParsedType::MARKER_INTRODUCED_EXTERNAL_CODE, $safe2);
$code = trim($generator->generateCode($file->getPathname(), dirname($file->getPathname())));
$code = preg_replace("'^<\\?(?:php)?'i", '', $code) . "\n";
return $code;
}
public function instrumentFile($sourceFile)
{
if ($this->manifest === NULL) {
$this->manifest = $this->kernel->getManifest();
}
$parsedFile = $this->manifest->getFile($sourceFile);
$storage = $parsedFile->getStorage();
$generator = new SourceGenerator($parsedFile->getBuffer());
foreach ($storage->getTypes() as $parsedType) {
$fields = $storage->getFields($parsedType);
$methods = $storage->getMethods($parsedType);
$typeInfo = new ParsedTypeInfo($parsedType, $fields, $methods);
$instrumentation = new Instrumentation($this->manifest);
$instrumentation->introduceInterface('KoolKode\\K2\\Instrument\\KoolTypeInterface');
if ($typeInfo->isClass()) {
// Introduce instance type LSB marker:
$instrumentation->introduceCode('protected static $K2TypeName = __CLASS__;');
// Introduce helper method trait:
$instrumentation->introduceTrait('KoolKode\\K2\\Instrument\\KoolTypeTrait');
// Implement original source file lookup:
$introduced = ' public static function K2GetSourceFile() { return ';
$introduced .= var_export($sourceFile, true) . '; }';
$instrumentation->introduceCode($introduced);
// Implement namespace context lookup:
$introduced = ' public static function K2GetNamespaceContext() { ';
$introduced .= 'static $ctx; if($ctx === NULL) { ';
$introduced .= '$ctx = ' . $typeInfo->getNamespaceContext()->compile() . '; ';
$introduced .= '} return $ctx; }';
$instrumentation->introduceCode($introduced);
// Extended class introduction:
$extends = $parsedType->getExtends();
if (!empty($extends)) {
$generator->populateTypeMarker($parsedType, ParsedType::MARKER_INTRODUCED_SUPERCLASS, '\\' . array_shift($extends));
}
$generator->populateTypeMarker($parsedType, ParsedType::MARKER_INTRODUCED_PREPENDED_CODE, ' if(!class_exists(' . var_export($parsedType->getName(), true) . ', false)) { ');
} elseif ($typeInfo->isInterface()) {
$generator->populateTypeMarker($parsedType, ParsedType::MARKER_INTRODUCED_EXTENDS, implode(', ', $parsedType->getExtends()));
$generator->populateTypeMarker($parsedType, ParsedType::MARKER_INTRODUCED_PREPENDED_CODE, ' if(!interface_exists(' . var_export($parsedType->getName(), true) . ', false)) { ');
} elseif ($typeInfo->isTrait()) {
$generator->populateTypeMarker($parsedType, ParsedType::MARKER_INTRODUCED_PREPENDED_CODE, ' if(!trait_exists(' . var_export($parsedType->getName(), true) . ', false)) { ');
}
foreach ($this->instrumentors as $instrumentor) {
$instrumentor->instrument($typeInfo, $instrumentation);
}
if ($instrumentation->hasInitializationCode()) {
$this->buildConstructor($typeInfo, $instrumentation);
}
$traits = $instrumentation->getIntroducedTraits();
$traitCode = empty($traits) ? '' : 'use ' . implode(', ', $traits) . '; ';
$generator->populateTypeMarker($parsedType, ParsedType::MARKER_INTRODUCED_NAME, $typeInfo->getLocalName());
$generator->populateTypeMarker($parsedType, ParsedType::MARKER_INTRODUCED_INTERFACES, implode(', ', $instrumentation->getIntroducedInterfaces()));
$generator->populateTypeMarker($parsedType, ParsedType::MARKER_INTRODUCED_CODE, $traitCode . $instrumentation->getIntroducedCode());
$generator->populateTypeMarker($parsedType, ParsedType::MARKER_INTRODUCED_EXTERNAL_CODE, ' } ' . $instrumentation->getAppendedCode());
foreach ($typeInfo->getMethods() as $methodInfo) {
$methodIns = $instrumentation->getMethodInstrumentation($methodInfo);
if ($methodIns->count()) {
$generator->populateMethodMarker($parsedType, $methodInfo->getParsedMethod(), ParsedMethod::MARKER_PREPENDED_CODE, $methodIns->getPrependedCode());
$generator->populateMethodMarker($parsedType, $methodInfo->getParsedMethod(), ParsedMethod::MARKER_APPENDED_CODE, $methodIns->getAppendedCode());
}
}
}
return $generator->generateCode($sourceFile, dirname($sourceFile));
}