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116 lines
3.2 KiB
116 lines
3.2 KiB
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#pragma once
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#include "cmConfigure.h" // IWYU pragma: keep
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#include <cstddef>
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#include <memory>
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#include <string>
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#include <utility>
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#include <vector>
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struct cmGeneratorExpressionContext;
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struct cmGeneratorExpressionDAGChecker;
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struct cmGeneratorExpressionNode;
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struct cmGeneratorExpressionEvaluator
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{
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cmGeneratorExpressionEvaluator() = default;
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virtual ~cmGeneratorExpressionEvaluator() = default;
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cmGeneratorExpressionEvaluator(cmGeneratorExpressionEvaluator const&) =
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delete;
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cmGeneratorExpressionEvaluator& operator=(
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cmGeneratorExpressionEvaluator const&) = delete;
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enum Type
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{
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Text,
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Generator
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};
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virtual Type GetType() const = 0;
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virtual std::string Evaluate(cmGeneratorExpressionContext* context,
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cmGeneratorExpressionDAGChecker*) const = 0;
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};
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using cmGeneratorExpressionEvaluatorVector =
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std::vector<std::unique_ptr<cmGeneratorExpressionEvaluator>>;
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struct TextContent : public cmGeneratorExpressionEvaluator
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{
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TextContent(const char* start, size_t length)
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: Content(start)
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, Length(length)
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{
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}
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std::string Evaluate(cmGeneratorExpressionContext*,
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cmGeneratorExpressionDAGChecker*) const override
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{
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return std::string(this->Content, this->Length);
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}
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Type GetType() const override
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{
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return cmGeneratorExpressionEvaluator::Text;
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}
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void Extend(size_t length) { this->Length += length; }
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size_t GetLength() const { return this->Length; }
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private:
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const char* Content;
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size_t Length;
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};
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struct GeneratorExpressionContent : public cmGeneratorExpressionEvaluator
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{
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GeneratorExpressionContent(const char* startContent, size_t length);
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void SetIdentifier(cmGeneratorExpressionEvaluatorVector&& identifier)
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{
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this->IdentifierChildren = std::move(identifier);
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}
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void SetParameters(
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std::vector<cmGeneratorExpressionEvaluatorVector>&& parameters)
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{
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this->ParamChildren = std::move(parameters);
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}
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Type GetType() const override
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{
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return cmGeneratorExpressionEvaluator::Generator;
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}
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std::string Evaluate(cmGeneratorExpressionContext* context,
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cmGeneratorExpressionDAGChecker*) const override;
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std::string GetOriginalExpression() const;
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~GeneratorExpressionContent() override;
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private:
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std::string EvaluateParameters(const cmGeneratorExpressionNode* node,
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const std::string& identifier,
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cmGeneratorExpressionContext* context,
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cmGeneratorExpressionDAGChecker* dagChecker,
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std::vector<std::string>& parameters) const;
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std::string ProcessArbitraryContent(
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const cmGeneratorExpressionNode* node, const std::string& identifier,
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cmGeneratorExpressionContext* context,
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cmGeneratorExpressionDAGChecker* dagChecker,
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std::vector<cmGeneratorExpressionEvaluatorVector>::const_iterator pit)
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const;
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cmGeneratorExpressionEvaluatorVector IdentifierChildren;
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std::vector<cmGeneratorExpressionEvaluatorVector> ParamChildren;
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const char* StartContent;
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size_t ContentLength;
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};
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