Sha256: 90f3a9b5185f5c3de32d8965552fe96a569a95ce2be8433d507df72fd39e5c26

Contents?: true

Size: 1.17 KB

Versions: 19

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Stored size: 1.17 KB

Contents

/* Copyright (c) 2012-2021 The ANTLR Project. All rights reserved.
 * Use of this file is governed by the BSD 3-clause license that
 * can be found in the LICENSE.txt file in the project root.
 */

#pragma once

#include <cassert>
#include <memory>
#include <type_traits>

namespace antlrcpp {

  template <typename To, typename From>
  To downCast(From* from) {
    static_assert(std::is_pointer_v<To>, "Target type not a pointer.");
    static_assert(std::is_base_of_v<From, std::remove_pointer_t<To>>, "Target type not derived from source type.");
  #if !defined(__GNUC__) || defined(__GXX_RTTI)
    assert(from == nullptr || dynamic_cast<To>(from) != nullptr);
  #endif
    return static_cast<To>(from);
  }

  template <typename To, typename From>
  To downCast(From& from) {
    static_assert(std::is_lvalue_reference_v<To>, "Target type not a lvalue reference.");
    static_assert(std::is_base_of_v<From, std::remove_reference_t<To>>, "Target type not derived from source type.");
  #if !defined(__GNUC__) || defined(__GXX_RTTI)
    assert(dynamic_cast<std::add_pointer_t<std::remove_reference_t<To>>>(std::addressof(from)) != nullptr);
  #endif
    return static_cast<To>(from);
  }

}

Version data entries

19 entries across 19 versions & 3 rubygems

Version Path
expressir-1.4.2 ext/express_parser/antlr4-upstream/runtime/Cpp/runtime/src/support/Casts.h
expressir-1.4.1 ext/express_parser/antlr4-upstream/runtime/Cpp/runtime/src/support/Casts.h
expressir-1.4.0 ext/express_parser/antlr4-upstream/runtime/Cpp/runtime/src/support/Casts.h
expressir-1.3.3 ext/express_parser/antlr4-upstream/runtime/Cpp/runtime/src/support/Casts.h
expressir-1.3.2 ext/express_parser/antlr4-upstream/runtime/Cpp/runtime/src/support/Casts.h
expressir-1.3.1 ext/express_parser/antlr4-upstream/runtime/Cpp/runtime/src/support/Casts.h
expressir-1.3.0 ext/express-parser/antlr4-upstream/runtime/Cpp/runtime/src/support/Casts.h
expressir-1.3.0.pre.5 ext/express-parser/antlr4-upstream/runtime/Cpp/runtime/src/support/Casts.h
expressir-1.3.0.pre.2 ext/express-parser/antlr4-upstream/runtime/Cpp/runtime/src/support/Casts.h
expressir-1.3.0.pre.1 ext/express-parser/antlr4-upstream/runtime/Cpp/runtime/src/support/Casts.h
expressir-1.2.11 ext/express-parser/antlr4-upstream/runtime/Cpp/runtime/src/support/Casts.h
expressir-1.2.10 ext/express-parser/antlr4-upstream/runtime/Cpp/runtime/src/support/Casts.h
expressir-1.2.9 ext/express-parser/antlr4-upstream/runtime/Cpp/runtime/src/support/Casts.h
factorial-presto-parser-1.0.7 ext/presto_parser/antlr4-upstream/runtime/Cpp/runtime/src/support/Casts.h
did_parser-1.0.0 ext/did_parser/antlr4-upstream/runtime/Cpp/runtime/src/support/Casts.h
expressir-1.2.8 ext/express-parser/antlr4-upstream/runtime/Cpp/runtime/src/support/Casts.h
expressir-1.2.7 ext/express-parser/antlr4-upstream/runtime/Cpp/runtime/src/support/Casts.h
expressir-1.2.6 ext/express-parser/antlr4-upstream/runtime/Cpp/runtime/src/support/Casts.h
expressir-1.2.5 ext/express-parser/antlr4-upstream/runtime/Cpp/runtime/src/support/Casts.h