You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
76 lines
1.9 KiB
76 lines
1.9 KiB
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
file Copyright.txt or https://cmake.org/licensing for details. */
|
|
#ifndef cmDefinitions_h
|
|
#define cmDefinitions_h
|
|
|
|
#include "cmConfigure.h" // IWYU pragma: keep
|
|
|
|
#include <functional>
|
|
#include <string>
|
|
#include <unordered_map>
|
|
#include <vector>
|
|
|
|
#include <cm/string_view>
|
|
|
|
#include "cmLinkedTree.h"
|
|
#include "cmString.hxx"
|
|
|
|
/** \class cmDefinitions
|
|
* \brief Store a scope of variable definitions for CMake language.
|
|
*
|
|
* This stores the state of variable definitions (set or unset) for
|
|
* one scope. Sets are always local. Gets search parent scopes
|
|
* transitively and save results locally.
|
|
*/
|
|
class cmDefinitions
|
|
{
|
|
using StackIter = cmLinkedTree<cmDefinitions>::iterator;
|
|
|
|
public:
|
|
// -- Static member functions
|
|
|
|
static const std::string* Get(const std::string& key, StackIter begin,
|
|
StackIter end);
|
|
|
|
static void Raise(const std::string& key, StackIter begin, StackIter end);
|
|
|
|
static bool HasKey(const std::string& key, StackIter begin, StackIter end);
|
|
|
|
static std::vector<std::string> ClosureKeys(StackIter begin, StackIter end);
|
|
|
|
static cmDefinitions MakeClosure(StackIter begin, StackIter end);
|
|
|
|
// -- Member functions
|
|
|
|
/** Set a value associated with a key. */
|
|
void Set(const std::string& key, cm::string_view value);
|
|
|
|
/** Unset a definition. */
|
|
void Unset(const std::string& key);
|
|
|
|
/** List of unused keys. */
|
|
std::vector<std::string> UnusedKeys() const;
|
|
|
|
private:
|
|
/** String with existence boolean. */
|
|
struct Def
|
|
{
|
|
public:
|
|
Def() = default;
|
|
Def(cm::string_view value)
|
|
: Value(value)
|
|
{
|
|
}
|
|
cm::String Value;
|
|
bool Used = false;
|
|
};
|
|
static Def NoDef;
|
|
|
|
std::unordered_map<cm::String, Def> Map;
|
|
|
|
static Def const& GetInternal(const std::string& key, StackIter begin,
|
|
StackIter end, bool raise);
|
|
};
|
|
|
|
#endif
|