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nix repl: Render docs for attributes

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This commit is contained in:
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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42
src/libexpr/eval.cc
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@ -1415,6 +1415,22 @@ void ExprSelect::eval(EvalState & state, Env & env, Value & v)
v = *vAttrs;
}
Symbol ExprSelect::evalExceptFinalSelect(EvalState & state, Env & env, Value & attrs)
{
Value vTmp;
Symbol name = getName(attrPath[attrPath.size() - 1], state, env);
if (attrPath.size() == 1) {
e->eval(state, env, vTmp);
} else {
ExprSelect init(*this);
init.attrPath.pop_back();
init.eval(state, env, vTmp);
}
attrs = vTmp;
return name;
}
void ExprOpHasAttr::eval(EvalState & state, Env & env, Value & v)
{
@ -2876,13 +2892,37 @@ Expr * EvalState::parse(
const SourcePath & basePath,
std::shared_ptr<StaticEnv> & staticEnv)
{
auto result = parseExprFromBuf(text, length, origin, basePath, symbols, settings, positions, rootFS, exprSymbols);
DocCommentMap tmpDocComments; // Only used when not origin is not a SourcePath
DocCommentMap *docComments = &tmpDocComments;
if (auto sourcePath = std::get_if<SourcePath>(&origin)) {
auto [it, _] = positionToDocComment.try_emplace(*sourcePath);
docComments = &it->second;
}
auto result = parseExprFromBuf(text, length, origin, basePath, symbols, settings, positions, *docComments, rootFS, exprSymbols);
result->bindVars(*this, staticEnv);
return result;
}
DocComment EvalState::getDocCommentForPos(PosIdx pos)
{
auto pos2 = positions[pos];
auto path = pos2.getSourcePath();
if (!path)
return {};
auto table = positionToDocComment.find(*path);
if (table == positionToDocComment.end())
return {};
auto it = table->second.find(pos);
if (it == table->second.end())
return {};
return it->second;
}
std::string ExternalValueBase::coerceToString(EvalState & state, const PosIdx & pos, NixStringContext & context, bool copyMore, bool copyToStore) const
{