blob: aa2c18201a58cf61a08bbef28ee57f7ae554d509 [file] [log] [blame] [edit]
// Copyright 2022 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_TYPE_ARRAY_COUNT_H_
#define SRC_TINT_TYPE_ARRAY_COUNT_H_
#include <functional>
#include <string>
#include "src/tint/symbol_table.h"
#include "src/tint/type/unique_node.h"
namespace tint::type {
/// An array count
class ArrayCount : public Castable<ArrayCount, UniqueNode> {
public:
~ArrayCount() override;
/// @param symbols the symbol table
/// @returns the friendly name for this array count
virtual std::string FriendlyName(const SymbolTable& symbols) const = 0;
protected:
/// Constructor
/// @param hash the unique hash of the node
explicit ArrayCount(size_t hash);
};
/// The variant of an ArrayCount when the array is a const-expression.
/// Example:
/// ```
/// const N = 123;
/// type arr = array<i32, N>
/// ```
class ConstantArrayCount final : public Castable<ConstantArrayCount, ArrayCount> {
public:
/// Constructor
/// @param val the constant-expression value
explicit ConstantArrayCount(uint32_t val);
~ConstantArrayCount() override;
/// @param other the other object
/// @returns true if this array count is equal to other
bool Equals(const UniqueNode& other) const override;
/// @param symbols the symbol table
/// @returns the friendly name for this array count
std::string FriendlyName(const SymbolTable& symbols) const override;
/// The array count constant-expression value.
uint32_t value;
};
/// The variant of an ArrayCount when the array is is runtime-sized.
/// Example:
/// ```
/// type arr = array<i32>
/// ```
class RuntimeArrayCount final : public Castable<RuntimeArrayCount, ArrayCount> {
public:
/// Constructor
RuntimeArrayCount();
~RuntimeArrayCount() override;
/// @param other the other object
/// @returns true if this array count is equal to other
bool Equals(const UniqueNode& other) const override;
/// @param symbols the symbol table
/// @returns the friendly name for this array count
std::string FriendlyName(const SymbolTable& symbols) const override;
};
} // namespace tint::type
#endif // SRC_TINT_TYPE_ARRAY_COUNT_H_