tblgen 0.8.1

Safe Rust bindings for TableGen.
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// Original work Copyright 2016 Alexander Stocko <as@coder.gg>.
// Modified work Copyright 2023 Daan Vanoverloop
// See the COPYRIGHT file at the top-level directory of this distribution.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

#include "TableGen.hpp"
#include "Types.h"
#include <llvm/Config/llvm-config.h>

using namespace llvm;
using ctablegen::tableGenFromRecType;

TableGenRecordKeeperRef tableGenRecordGetRecords(TableGenRecordRef record_ref) {
  return wrap(&unwrap(record_ref)->getRecords());
}

TableGenStringRef tableGenRecordGetName(TableGenRecordRef record_ref) {
  auto name = unwrap(record_ref)->getName();
  return TableGenStringRef{.data = name.data(), .len = name.size()};
}

TableGenRecordValRef tableGenRecordGetValue(TableGenRecordRef record_ref,
                                            TableGenStringRef name) {
  return wrap(unwrap(record_ref)->getValue(StringRef(name.data, name.len)));
}

TableGenRecTyKind tableGenRecordGetFieldType(TableGenRecordRef record_ref,
                                             TableGenStringRef name) {
  auto value = unwrap(record_ref)->getValue(StringRef(name.data, name.len));
  if (!value)
    return TableGenInvalidRecTyKind;
  return tableGenFromRecType(value->getType());
}

TableGenRecordValRef tableGenRecordGetFirstValue(TableGenRecordRef record_ref) {
  auto values = unwrap(record_ref)->getValues();
  if (values.empty()) {
    return nullptr;
  }
  return wrap(values.begin());
}

TableGenRecordValRef tableGenRecordValNext(TableGenRecordRef record,
                                           TableGenRecordValRef current) {
  auto next = std::next(ArrayRef<RecordVal>::iterator(unwrap(current)));
  if (next == unwrap(record)->getValues().end()) {
    return nullptr;
  }
  return wrap(next);
}

TableGenBool tableGenRecordIsAnonymous(TableGenRecordRef record_ref) {
  return unwrap(record_ref)->isAnonymous();
}

TableGenBool tableGenRecordIsSubclassOf(TableGenRecordRef record_ref,
                                        TableGenStringRef name) {
  return unwrap(record_ref)->isSubClassOf(StringRef(name.data, name.len));
}

TableGenSourceLocationRef tableGenRecordGetLoc(TableGenRecordRef record_ref) {
  return wrap(new ArrayRef(unwrap(record_ref)->getLoc()));
}

void tableGenRecordPrint(TableGenRecordRef record_ref,
                         TableGenStringCallback callback, void *userData) {
  ctablegen::CallbackOstream stream(callback, userData);
  stream << *unwrap(record_ref);
}

void tableGenRecordDump(TableGenRecordRef record_ref) {
  unwrap(record_ref)->dump();
}

size_t tableGenRecordGetNumTemplateArgs(TableGenRecordRef record_ref) {
  return unwrap(record_ref)->getTemplateArgs().size();
}

TableGenStringRef tableGenRecordGetTemplateArgName(TableGenRecordRef record_ref,
                                                   size_t index) {
  auto args = unwrap(record_ref)->getTemplateArgs();
  if (index >= args.size())
    return TableGenStringRef{.data = nullptr, .len = 0};
  auto name = dyn_cast<StringInit>(args[index]);
  if (!name)
    return TableGenStringRef{.data = nullptr, .len = 0};
  auto val = name->getValue();
  return TableGenStringRef{.data = val.data(), .len = val.size()};
}

size_t tableGenRecordGetNumSuperClasses(TableGenRecordRef record_ref) {
#if LLVM_VERSION_MAJOR >= 21
  return unwrap(record_ref)->getDirectSuperClasses().size();
#else
  return unwrap(record_ref)->getSuperClasses().size();
#endif
}

TableGenRecordRef tableGenRecordGetSuperClass(TableGenRecordRef record_ref,
                                              size_t index) {
#if LLVM_VERSION_MAJOR >= 21
  auto supers = unwrap(record_ref)->getDirectSuperClasses();
#else
  auto supers = unwrap(record_ref)->getSuperClasses();
#endif
  if (index >= supers.size())
    return nullptr;
  return wrap(supers[index].first);
}