1 /* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
2 file Copyright.txt or https://cmake.org/licensing for details. */
5 #include "cmConfigure.h" // IWYU pragma: keep
10 class cmGeneratorTarget;
11 class cmLocalGenerator;
12 struct GeneratorExpressionContent;
13 struct cmGeneratorExpressionContext;
14 struct cmGeneratorExpressionDAGChecker;
16 struct cmGeneratorExpressionNode
20 DynamicParameters = 0,
21 OneOrMoreParameters = -1,
22 TwoOrMoreParameters = -2,
23 ZeroOrMoreParameters = -3,
24 OneOrZeroParameters = -4
26 virtual ~cmGeneratorExpressionNode() = default;
28 virtual bool GeneratesContent() const { return true; }
30 virtual bool RequiresLiteralInput() const { return false; }
32 virtual bool AcceptsArbitraryContentParameter() const { return false; }
34 virtual int NumExpectedParameters() const { return 1; }
36 virtual std::string Evaluate(
37 const std::vector<std::string>& parameters,
38 cmGeneratorExpressionContext* context,
39 const GeneratorExpressionContent* content,
40 cmGeneratorExpressionDAGChecker* dagChecker) const = 0;
42 static std::string EvaluateDependentExpression(
43 std::string const& prop, cmLocalGenerator* lg,
44 cmGeneratorExpressionContext* context, const cmGeneratorTarget* headTarget,
45 cmGeneratorExpressionDAGChecker* dagChecker,
46 const cmGeneratorTarget* currentTarget);
48 static const cmGeneratorExpressionNode* GetNode(
49 const std::string& identifier);
52 void reportError(cmGeneratorExpressionContext* context,
53 const std::string& expr, const std::string& result);