125 lines
4.3 KiB
C++
125 lines
4.3 KiB
C++
// Copyright 2021 The Tint Authors.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#ifndef SRC_TINT_PROGRAM_ID_H_
|
|
#define SRC_TINT_PROGRAM_ID_H_
|
|
|
|
#include <stdint.h>
|
|
#include <iostream>
|
|
#include <utility>
|
|
|
|
#include "src/tint/debug.h"
|
|
|
|
namespace tint {
|
|
|
|
/// If 1 then checks are enabled that AST nodes are not leaked from one program
|
|
/// to another.
|
|
/// TODO(bclayton): We'll want to disable this in production builds. For now we
|
|
/// always check.
|
|
#define TINT_CHECK_FOR_CROSS_PROGRAM_LEAKS 1
|
|
|
|
/// A ProgramID is a unique identifier of a Program.
|
|
/// ProgramID can be used to ensure that objects referenced by the Program are
|
|
/// owned exclusively by that Program and have accidentally not leaked from
|
|
/// another Program.
|
|
class ProgramID {
|
|
public:
|
|
/// Constructor
|
|
ProgramID();
|
|
|
|
/// @returns a new. globally unique ProgramID
|
|
static ProgramID New();
|
|
|
|
/// Equality operator
|
|
/// @param rhs the other ProgramID
|
|
/// @returns true if the ProgramIDs are equal
|
|
bool operator==(const ProgramID& rhs) const { return val == rhs.val; }
|
|
|
|
/// Inequality operator
|
|
/// @param rhs the other ProgramID
|
|
/// @returns true if the ProgramIDs are not equal
|
|
bool operator!=(const ProgramID& rhs) const { return val != rhs.val; }
|
|
|
|
/// @returns the numerical identifier value
|
|
uint32_t Value() const { return val; }
|
|
|
|
/// @returns true if this ProgramID is valid
|
|
operator bool() const { return val != 0; }
|
|
|
|
private:
|
|
explicit ProgramID(uint32_t);
|
|
|
|
uint32_t val = 0;
|
|
};
|
|
|
|
/// A simple pass-through function for ProgramID. Intended to be overloaded for
|
|
/// other types.
|
|
/// @param id a ProgramID
|
|
/// @returns id. Simple pass-through function
|
|
inline ProgramID ProgramIDOf(ProgramID id) {
|
|
return id;
|
|
}
|
|
|
|
/// Writes the ProgramID to the std::ostream.
|
|
/// @param out the std::ostream to write to
|
|
/// @param id the program identifier to write
|
|
/// @returns out so calls can be chained
|
|
inline std::ostream& operator<<(std::ostream& out, ProgramID id) {
|
|
out << "Program<" << id.Value() << ">";
|
|
return out;
|
|
}
|
|
|
|
namespace detail {
|
|
|
|
/// AssertProgramIDsEqual is called by TINT_ASSERT_PROGRAM_IDS_EQUAL() and
|
|
/// TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID() to assert that the ProgramIDs
|
|
/// `a` and `b` are equal.
|
|
void AssertProgramIDsEqual(ProgramID a,
|
|
ProgramID b,
|
|
bool if_valid,
|
|
diag::System system,
|
|
const char* msg,
|
|
const char* file,
|
|
size_t line);
|
|
|
|
} // namespace detail
|
|
|
|
/// TINT_ASSERT_PROGRAM_IDS_EQUAL(SYSTEM, A, B) is a macro that asserts that the
|
|
/// program identifiers for A and B are equal.
|
|
///
|
|
/// TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(SYSTEM, A, B) is a macro that asserts
|
|
/// that the program identifiers for A and B are equal, if both A and B have
|
|
/// valid program identifiers.
|
|
#if TINT_CHECK_FOR_CROSS_PROGRAM_LEAKS
|
|
#define TINT_ASSERT_PROGRAM_IDS_EQUAL(system, a, b) \
|
|
detail::AssertProgramIDsEqual( \
|
|
ProgramIDOf(a), ProgramIDOf(b), false, tint::diag::System::system, \
|
|
"TINT_ASSERT_PROGRAM_IDS_EQUAL(" #system "," #a ", " #b ")", __FILE__, __LINE__)
|
|
#define TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(system, a, b) \
|
|
detail::AssertProgramIDsEqual( \
|
|
ProgramIDOf(a), ProgramIDOf(b), true, tint::diag::System::system, \
|
|
"TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(" #system ", " #a ", " #b ")", __FILE__, __LINE__)
|
|
#else
|
|
#define TINT_ASSERT_PROGRAM_IDS_EQUAL(a, b) \
|
|
do { \
|
|
} while (false)
|
|
#define TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(a, b) \
|
|
do { \
|
|
} while (false)
|
|
#endif
|
|
|
|
} // namespace tint
|
|
|
|
#endif // SRC_TINT_PROGRAM_ID_H_
|