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array_expression_evaluator.h
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/**
* Copyright 2015 Google Inc. All Rights Reserved.
*
* 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 DEVTOOLS_CDBG_DEBUGLETS_JAVA_ARRAY_EXPRESSION_EVALUATOR_H_
#define DEVTOOLS_CDBG_DEBUGLETS_JAVA_ARRAY_EXPRESSION_EVALUATOR_H_
#include "common.h"
#include "expression_evaluator.h"
namespace devtools {
namespace cdbg {
class ArrayReader;
// Evaluates array indexer sub-expressions.
class ArrayExpressionEvaluator : public ExpressionEvaluator {
public:
ArrayExpressionEvaluator(
std::unique_ptr<ExpressionEvaluator> source_array,
std::unique_ptr<ExpressionEvaluator> source_index);
~ArrayExpressionEvaluator() override;
bool Compile(
ReadersFactory* readers_factory,
FormatMessageModel* error_message) override;
const JSignature& GetStaticType() const override { return return_type_; }
Nullable<jvalue> GetStaticValue() const override { return nullptr; }
ErrorOr<JVariant> Evaluate(
const EvaluationContext& evaluation_context) const override;
private:
// Subexpression that computes the actual array object.
std::unique_ptr<ExpressionEvaluator> source_array_;
// Subexpression that computes the index of the array we are accessing.
std::unique_ptr<ExpressionEvaluator> source_index_;
// Array reader object.
std::unique_ptr<ArrayReader> array_reader_;
// Array element type.
JSignature return_type_;
DISALLOW_COPY_AND_ASSIGN(ArrayExpressionEvaluator);
};
} // namespace cdbg
} // namespace devtools
#endif // DEVTOOLS_CDBG_DEBUGLETS_JAVA_ARRAY_EXPRESSION_EVALUATOR_H_