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103 lines
2.9 KiB
C++
103 lines
2.9 KiB
C++
// See the file "COPYING" in the main distribution directory for copyright.
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#pragma once
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#include <map>
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#include <string>
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#include <string_view>
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#include <utility>
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#include "zeek/IntrusivePtr.h"
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#include "zeek/Obj.h"
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#include "zeek/TraverseTypes.h"
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#include "zeek/ZeekList.h"
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namespace zeek {
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class Type;
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template<class T>
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class IntrusivePtr;
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using TypePtr = IntrusivePtr<Type>;
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namespace detail {
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class Attr;
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class ID;
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using AttrPtr = IntrusivePtr<Attr>;
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using IDPtr = IntrusivePtr<ID>;
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class Scope;
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using ScopePtr = IntrusivePtr<Scope>;
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class Scope : public Obj {
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public:
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explicit Scope(IDPtr id, std::unique_ptr<std::vector<AttrPtr>> al);
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const IDPtr& Find(std::string_view name) const;
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template<typename N, typename I>
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void Insert(N&& name, I&& id) {
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local[std::forward<N>(name)] = id;
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ordered_vars.push_back(std::forward<I>(id));
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}
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const IDPtr& GetID() const { return scope_id; }
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const std::unique_ptr<std::vector<AttrPtr>>& Attrs() const { return attrs; }
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const TypePtr& GetReturnType() const { return return_type; }
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size_t Length() const { return local.size(); }
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const auto& Vars() const { return local; }
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const auto& OrderedVars() const { return ordered_vars; }
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IDPtr GenerateTemporary(const char* name);
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// Returns the list of variables needing initialization, and
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// removes it from this Scope.
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std::vector<IDPtr> GetInits();
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// Adds a variable to the list.
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void AddInit(IDPtr id) { inits.emplace_back(std::move(id)); }
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void Describe(ODesc* d) const override;
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TraversalCode Traverse(TraversalCallback* cb) const;
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protected:
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IDPtr scope_id;
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std::unique_ptr<std::vector<AttrPtr>> attrs;
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TypePtr return_type;
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std::map<std::string, IDPtr, std::less<>> local;
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std::vector<IDPtr> inits;
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// We keep track of identifiers in the order that they're added.
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// This is necessary for script optimization to be able to find
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// event/hook parameters for instances where the declaration of
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// an additional handler uses different names for the parameters
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// than the original declaration.
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std::vector<IntrusivePtr<ID>> ordered_vars;
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};
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// If no_global is true, don't search in the default "global" namespace.
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extern const IDPtr& lookup_ID(const char* name, const char* module, bool no_global = false,
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bool same_module_only = false, bool check_export = true);
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extern IDPtr install_ID(const char* name, const char* module_name, bool is_global, bool is_export);
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extern void push_scope(IDPtr id, std::unique_ptr<std::vector<AttrPtr>> attrs);
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extern void push_existing_scope(ScopePtr scope);
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// Returns the one popped off.
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extern ScopePtr pop_scope();
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extern ScopePtr current_scope();
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extern ScopePtr global_scope();
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// Current module (identified by its name).
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extern std::string current_module;
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} // namespace detail
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} // namespace zeek
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extern bool in_debug;
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