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nix repl: Render docs for attributes

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Robert Hensing 2024-07-09 19:25:45 +02:00
parent 491b9cf415
commit d4f576b0b2
10 changed files with 237 additions and 3 deletions
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11
src/libexpr/nixexpr.hh
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@ -202,6 +202,17 @@ struct ExprSelect : Expr
ExprSelect(const PosIdx & pos, Expr * e, AttrPath attrPath, Expr * def) : pos(pos), e(e), def(def), attrPath(std::move(attrPath)) { };
ExprSelect(const PosIdx & pos, Expr * e, Symbol name) : pos(pos), e(e), def(0) { attrPath.push_back(AttrName(name)); };
PosIdx getPos() const override { return pos; }
/**
* Evaluate the `a.b.c` part of `a.b.c.d`. This exists mostly for the purpose of :doc in the repl.
*
* @param[out] v The attribute set that should contain the last attribute name (if it exists).
* @return The last attribute name in `attrPath`
*
* @note This does *not* evaluate the final attribute, and does not fail if that's the only attribute that does not exist.
*/
Symbol evalExceptFinalSelect(EvalState & state, Env & env, Value & attrs);
COMMON_METHODS
};