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//===--- MetadataSource.cpp - Swift Metadata Sources for Reflection -------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
#if SWIFT_ENABLE_REFLECTION
#include "swift/RemoteInspection/MetadataSource.h"
#include <iostream>
using namespace swift;
using namespace reflection;
class PrintMetadataSource
: public MetadataSourceVisitor<PrintMetadataSource, void> {
std::ostream &stream;
unsigned Indent;
std::ostream &indent(unsigned Amount) {
for (unsigned i = 0; i < Amount; ++i)
stream << " ";
return stream;
}
std::ostream &printHeader(std::string Name) {
indent(Indent) << "(" << Name;
return stream;
}
std::ostream &printField(std::string name, std::string value) {
if (!name.empty())
stream << " " << name << "=" << value;
else
stream << " " << value;
return stream;
}
void printRec(const MetadataSource *MS) {
stream << "\n";
Indent += 2;
visit(MS);
Indent -= 2;
}
void closeForm() {
stream << ")";
}
public:
PrintMetadataSource(std::ostream &stream, unsigned Indent)
: stream(stream), Indent(Indent) {}
void
visitClosureBindingMetadataSource(const ClosureBindingMetadataSource *CB) {
printHeader("closure_binding");
printField("index", std::to_string(CB->getIndex()));
closeForm();
}
void
visitReferenceCaptureMetadataSource(const ReferenceCaptureMetadataSource *RC){
printHeader("reference_capture");
printField("index", std::to_string(RC->getIndex()));
closeForm();
}
void
visitMetadataCaptureMetadataSource(const MetadataCaptureMetadataSource *MC){
printHeader("metadata_capture");
printField("index", std::to_string(MC->getIndex()));
closeForm();
}
void
visitGenericArgumentMetadataSource(const GenericArgumentMetadataSource *GA) {
printHeader("generic_argument");
printField("index", std::to_string(GA->getIndex()));
printRec(GA->getSource());
closeForm();
}
void visitSelfMetadataSource(const SelfMetadataSource *S) {
printHeader("self");
closeForm();
}
void
visitSelfWitnessTableMetadataSource(const SelfWitnessTableMetadataSource *W) {
printHeader("self_witness_table");
closeForm();
}
};
void MetadataSource::dump() const { dump(std::cerr, 0); }
void MetadataSource::dump(std::ostream &stream, unsigned Indent) const {
PrintMetadataSource(stream, Indent).visit(this);
stream << "\n";
}
#endif
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