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Introduce FSInputAccessor and use it

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Backported from the lazy-trees branch. Note that this doesn't yet use
the access control features of FSInputAccessor.
This commit is contained in:
Eelco Dolstra 2023-10-18 15:32:31 +02:00
parent e92cac789f
commit ea38605d11
18 changed files with 502 additions and 126 deletions
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17
src/libexpr/value.hh
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@ -189,7 +189,12 @@ public:
const char * c_str;
const char * * context; // must be in sorted order
} string;
const char * _path;
struct {
InputAccessor * accessor;
const char * path;
} _path;
Bindings * attrs;
struct {
size_t size;
@ -286,11 +291,12 @@ public:
void mkPath(const SourcePath & path);
inline void mkPath(const char * path)
inline void mkPath(InputAccessor * accessor, const char * path)
{
clearValue();
internalType = tPath;
_path = path;
_path.accessor = accessor;
_path.path = path;
}
inline void mkNull()
@ -437,7 +443,10 @@ public:
SourcePath path() const
{
assert(internalType == tPath);
return SourcePath{CanonPath(_path)};
return SourcePath {
.accessor = ref(_path.accessor->shared_from_this()),
.path = CanonPath(CanonPath::unchecked_t(), _path.path)
};
}
std::string_view string_view() const