2a8ebc4906
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
#pragma once
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#include <mln/style/expression/expression.hpp>
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#include <mln/style/conversion.hpp>
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#include <memory>
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namespace mln {
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namespace style {
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namespace expression {
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class Slice : public Expression {
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public:
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Slice(std::unique_ptr<Expression> input_,
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std::unique_ptr<Expression> fromIndex_,
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std::unique_ptr<Expression> toIndex_);
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static ParseResult parse(const mln::style::conversion::Convertible& value, ParsingContext& ctx);
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EvaluationResult evaluate(const EvaluationContext& params) const override;
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void eachChild(const std::function<void(const Expression&)>&) const override;
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bool operator==(const Expression& e) const noexcept override;
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std::vector<std::optional<Value>> possibleOutputs() const override;
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std::string getOperator() const override { return "slice"; }
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private:
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EvaluationResult evaluateForStringInput(const std::string& input, int fromIndexValue, int toIndexValue) const;
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EvaluationResult evaluateForArrayInput(const std::vector<Value>& input, int fromIndexValue, int toIndexValue) const;
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private:
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std::unique_ptr<Expression> input;
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std::unique_ptr<Expression> fromIndex;
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std::unique_ptr<Expression> toIndex;
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};
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} // namespace expression
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} // namespace style
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} // namespace mln
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