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60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file LICENSE.rst 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 <string>
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#include <vector>
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class cmGeneratorTarget;
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class cmLocalGenerator;
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struct GeneratorExpressionContent;
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struct cmGeneratorExpressionContext;
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struct cmGeneratorExpressionDAGChecker;
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struct cmGeneratorExpressionNode
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{
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enum
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{
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DynamicParameters = 0,
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OneOrMoreParameters = -1,
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TwoOrMoreParameters = -2,
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ZeroOrMoreParameters = -3,
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OneOrZeroParameters = -4
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};
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virtual ~cmGeneratorExpressionNode() = default;
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virtual bool GeneratesContent() const { return true; }
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virtual bool RequiresLiteralInput() const { return false; }
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virtual bool AcceptsArbitraryContentParameter() const { return false; }
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virtual int NumExpectedParameters() const { return 1; }
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virtual bool ShouldEvaluateNextParameter(std::vector<std::string> const&,
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std::string&) const
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{
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return true;
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}
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virtual std::string Evaluate(
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std::vector<std::string> const& parameters,
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cmGeneratorExpressionContext* context,
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GeneratorExpressionContent const* content,
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cmGeneratorExpressionDAGChecker* dagChecker) const = 0;
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static std::string EvaluateDependentExpression(
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std::string const& prop, cmLocalGenerator const* lg,
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cmGeneratorExpressionContext* context, cmGeneratorTarget const* headTarget,
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cmGeneratorExpressionDAGChecker* dagChecker,
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cmGeneratorTarget const* currentTarget);
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static cmGeneratorExpressionNode const* GetNode(
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std::string const& identifier);
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};
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void reportError(cmGeneratorExpressionContext* context,
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std::string const& expr, std::string const& result);
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