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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#pragma once
#include "cmConfigure.h" // IWYU pragma: keep
#include <string>
#include <vector>
class cmGeneratorTarget;
class cmLocalGenerator;
struct GeneratorExpressionContent;
struct cmGeneratorExpressionContext;
struct cmGeneratorExpressionDAGChecker;
struct cmGeneratorExpressionNode
{
enum
{
DynamicParameters = 0,
OneOrMoreParameters = -1,
TwoOrMoreParameters = -2,
ZeroOrMoreParameters = -3,
OneOrZeroParameters = -4
};
virtual ~cmGeneratorExpressionNode() = default;
virtual bool GeneratesContent() const { return true; }
virtual bool RequiresLiteralInput() const { return false; }
virtual bool AcceptsArbitraryContentParameter() const { return false; }
virtual int NumExpectedParameters() const { return 1; }
virtual bool ShouldEvaluateNextParameter(const std::vector<std::string>&,
std::string&) const
{
return true;
}
virtual std::string Evaluate(
const std::vector<std::string>& parameters,
cmGeneratorExpressionContext* context,
const GeneratorExpressionContent* content,
cmGeneratorExpressionDAGChecker* dagChecker) const = 0;
static std::string EvaluateDependentExpression(
std::string const& prop, cmLocalGenerator* lg,
cmGeneratorExpressionContext* context, const cmGeneratorTarget* headTarget,
cmGeneratorExpressionDAGChecker* dagChecker,
const cmGeneratorTarget* currentTarget);
static const cmGeneratorExpressionNode* GetNode(
const std::string& identifier);
};
void reportError(cmGeneratorExpressionContext* context,
const std::string& expr, const std::string& result);
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