2014-04-28 21:09:25 +04:00
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#pragma once
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2010-01-30 07:26:05 +03:00
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#include "value.h"
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#include "typedefs.h"
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#include "feature.h"
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2011-09-03 08:10:36 +04:00
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#include <string>
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#include <vector>
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class AbstractFunction
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{
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private:
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const Feature *feature;
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public:
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AbstractFunction() : feature(NULL) {}
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AbstractFunction(const Feature& feature) : feature(&feature) {}
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virtual ~AbstractFunction();
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virtual bool is_experimental() const { return feature != NULL; }
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virtual bool is_enabled() const { return (feature == NULL) || feature->is_enabled(); }
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virtual ValuePtr evaluate(const class Context *ctx, const class EvalContext *evalctx) const;
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virtual std::string dump(const std::string &indent, const std::string &name) const;
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};
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class BuiltinFunction : public AbstractFunction
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{
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public:
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typedef ValuePtr (*eval_func_t)(const Context *ctx, const EvalContext *evalctx);
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eval_func_t eval_func;
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BuiltinFunction(eval_func_t f) : eval_func(f) { }
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BuiltinFunction(eval_func_t f, const Feature& feature) : AbstractFunction(feature), eval_func(f) { }
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virtual ~BuiltinFunction();
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virtual ValuePtr evaluate(const Context *ctx, const EvalContext *evalctx) const;
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virtual std::string dump(const std::string &indent, const std::string &name) const;
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};
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class Function : public AbstractFunction
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{
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public:
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std::string name;
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AssignmentList definition_arguments;
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Expression *expr;
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Function(const char *name, AssignmentList &definition_arguments, Expression *expr);
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virtual ~Function();
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virtual ValuePtr evaluate(const Context *ctx, const EvalContext *evalctx) const;
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virtual std::string dump(const std::string &indent, const std::string &name) const;
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static Function * create(const char *name, AssignmentList &definition_arguments, Expression *expr);
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};
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