blob: cdca3953e6538597898016c5333f9bfcc27f4681 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
#include "attr-set.hh"
#include <algorithm>
#include "eval-inline.hh"
namespace nix {
/* Allocate a new array of attributes for an attribute set with a specific
capacity. The space is implicitly reserved after the Bindings
structure. */
Bindings* EvalState::allocBindings(size_t capacity) {
if (capacity > std::numeric_limits<Bindings::size_t>::max())
throw Error("attribute set of size %d is too big", capacity);
return new (allocBytes(sizeof(Bindings) + sizeof(Attr) * capacity))
Bindings((Bindings::size_t)capacity);
}
void EvalState::mkAttrs(Value& v, size_t capacity) {
if (capacity == 0) {
v = vEmptySet;
return;
}
clearValue(v);
v.type = tAttrs;
v.attrs = allocBindings(capacity);
nrAttrsets++;
nrAttrsInAttrsets += capacity;
}
/* Create a new attribute named 'name' on an existing attribute set stored
in 'vAttrs' and return the newly allocated Value which is associated with
this attribute. */
Value* EvalState::allocAttr(Value& vAttrs, const Symbol& name) {
Value* v = allocValue();
vAttrs.attrs->push_back(Attr(name, v));
return v;
}
void Bindings::sort() { std::sort(begin(), end()); }
} // namespace nix
|
