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Make InstallableFlake::toValue() and toDerivation() behave consistently

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In particular, this means that 'nix eval` (which uses toValue()) no
longer auto-calls functions or functors (because
AttrCursor::findAlongAttrPath() doesn't).

Fixes #6152.

Also use ref<> in a few places, and don't return attrpaths from
getCursor() because cursors already have a getAttrPath() method.
This commit is contained in:
Eelco Dolstra 2022-04-14 14:04:19 +02:00
parent 0e58affd39
commit d89840b103
7 changed files with 72 additions and 75 deletions
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12
src/libcmd/installables.hh
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@ -80,10 +80,10 @@ struct Installable
return {};
}
virtual std::vector<std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>>
virtual std::vector<ref<eval_cache::AttrCursor>>
getCursors(EvalState & state);
std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>
virtual ref<eval_cache::AttrCursor>
getCursor(EvalState & state);
virtual FlakeRef nixpkgsFlakeRef() const
@ -180,9 +180,15 @@ struct InstallableFlake : InstallableValue
std::pair<Value *, Pos> toValue(EvalState & state) override;
std::vector<std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>>
/* Get a cursor to every attrpath in getActualAttrPaths() that
exists. */
std::vector<ref<eval_cache::AttrCursor>>
getCursors(EvalState & state) override;
/* Get a cursor to the first attrpath in getActualAttrPaths() that
exists, or throw an exception with suggestions if none exists. */
ref<eval_cache::AttrCursor> getCursor(EvalState & state) override;
std::shared_ptr<flake::LockedFlake> getLockedFlake() const;
FlakeRef nixpkgsFlakeRef() const override;