//===--- AvailabilitySpec.cpp - Swift Availability Query ASTs ---*- C++ -*-===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
//
// This file implements the availability specification AST classes.
//
//===----------------------------------------------------------------------===//

#include "swift/AST/ASTContext.h"
#include "swift/AST/AvailabilitySpec.h"
#include "llvm/Support/raw_ostream.h"

using namespace swift;

// Only allow allocation of VersionConstraintAvailabilitySpec using the
// allocator in ASTContext.
void *VersionConstraintAvailabilitySpec::
operator new(size_t Bytes, ASTContext &C, unsigned Alignment) {
  return C.Allocate(Bytes, Alignment);
}

StringRef VersionConstraintAvailabilitySpec::getComparisonAsString() const {
  switch (getComparison()) {
  case VersionComparison::GreaterThanEqual:
    return ">=";
  }
  llvm_unreachable("bad VersionComparison");
}

SourceRange VersionConstraintAvailabilitySpec::getSourceRange() const {
  return SourceRange(PlatformLoc, VersionSrcRange.End);
}

void VersionConstraintAvailabilitySpec::print(raw_ostream &OS,
                                              unsigned Indent) const {
  OS.indent(Indent) << '(' << "version_constraint_availability_spec"
                    << " platform='" << platformString(getPlatform()) << "'"
                    << " comparison='" << getComparisonAsString() << "'"
                    << " version='" << getVersion() << "'"
                    << ')';
}