Make all ExternalValueBase functions const

This commit is contained in:
Shea Levy 2014-12-02 10:02:03 -05:00
parent 320659b0cd
commit 608110804c
4 changed files with 15 additions and 15 deletions

View file

@ -1616,20 +1616,20 @@ size_t valueSize(Value & v)
}
string ExternalValueBase::coerceToString(const Pos & pos, PathSet & context, bool copyMore, bool copyToStore)
string ExternalValueBase::coerceToString(const Pos & pos, PathSet & context, bool copyMore, bool copyToStore) const
{
throw TypeError(format("cannot coerce %1% to a string, at %2%") %
showType() % pos);
}
bool ExternalValueBase::operator==(const ExternalValueBase & b)
bool ExternalValueBase::operator==(const ExternalValueBase & b) const
{
return false;
}
std::ostream & operator << (std::ostream & str, ExternalValueBase & v) {
std::ostream & operator << (std::ostream & str, const ExternalValueBase & v) {
return v.print(str);
}

View file

@ -91,7 +91,7 @@ void printValueAsJSON(EvalState & state, bool strict,
void ExternalValueBase::printValueAsJSON(EvalState & state, bool strict,
std::ostream & str, PathSet & context)
std::ostream & str, PathSet & context) const
{
throw TypeError(format("cannot convert %1% to JSON") % showType());
}

View file

@ -155,7 +155,7 @@ static void printValueAsXML(EvalState & state, bool strict, bool location,
void ExternalValueBase::printValueAsXML(EvalState & state, bool strict,
bool location, XMLWriter & doc, PathSet & context, PathSet & drvsSeen)
bool location, XMLWriter & doc, PathSet & context, PathSet & drvsSeen) const
{
doc.writeEmptyElement("unevaluated");
}

View file

@ -42,45 +42,45 @@ typedef long NixInt;
*/
class ExternalValueBase
{
friend std::ostream & operator << (std::ostream & str, ExternalValueBase & v);
friend std::ostream & operator << (std::ostream & str, const ExternalValueBase & v);
protected:
/* Print out the value */
virtual std::ostream & print(std::ostream & str) = 0;
virtual std::ostream & print(std::ostream & str) const = 0;
public:
/* Return a simple string describing the type */
virtual string showType() = 0;
virtual string showType() const = 0;
/* Return a string to be used in builtins.typeOf */
virtual string typeOf() = 0;
virtual string typeOf() const = 0;
/* How much space does this value take up */
virtual size_t valueSize(std::set<const void *> & seen) = 0;
virtual size_t valueSize(std::set<const void *> & seen) const = 0;
/* Coerce the value to a string. Defaults to uncoercable, i.e. throws an
* error
*/
virtual string coerceToString(const Pos & pos, PathSet & context, bool copyMore, bool copyToStore);
virtual string coerceToString(const Pos & pos, PathSet & context, bool copyMore, bool copyToStore) const;
/* Compare to another value of the same type. Defaults to uncomparable,
* i.e. always false.
*/
virtual bool operator==(const ExternalValueBase & b);
virtual bool operator==(const ExternalValueBase & b) const;
/* Print the value as JSON. Defaults to unconvertable, i.e. throws an error */
virtual void printValueAsJSON(EvalState & state, bool strict,
std::ostream & str, PathSet & context);
std::ostream & str, PathSet & context) const;
/* Print the value as XML. Defaults to unevaluated */
virtual void printValueAsXML(EvalState & state, bool strict, bool location,
XMLWriter & doc, PathSet & context, PathSet & drvsSeen);
XMLWriter & doc, PathSet & context, PathSet & drvsSeen) const;
virtual ~ExternalValueBase()
{
};
};
std::ostream & operator << (std::ostream & str, ExternalValueBase & v);
std::ostream & operator << (std::ostream & str, const ExternalValueBase & v);
struct Value