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