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Allow primops to have Markdown documentation

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This commit is contained in:
Eelco Dolstra 2020-08-24 13:11:56 +02:00
parent 88d5c9ec58
commit 33b1679d75
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6 changed files with 92 additions and 15 deletions
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28
src/libexpr/eval.cc
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@ -525,6 +525,34 @@ Value * EvalState::addPrimOp(const string & name,
}
Value * EvalState::addPrimOp(PrimOp && primOp)
{
/* Hack to make constants lazy: turn them into a application of
the primop to a dummy value. */
if (primOp.arity == 0) {
primOp.arity = 1;
auto vPrimOp = allocValue();
vPrimOp->type = tPrimOp;
vPrimOp->primOp = new PrimOp(std::move(primOp));
Value v;
mkApp(v, *vPrimOp, *vPrimOp);
return addConstant(primOp.name, v);
}
Symbol envName = primOp.name;
if (hasPrefix(primOp.name, "__"))
primOp.name = symbols.create(std::string(primOp.name, 2));
Value * v = allocValue();
v->type = tPrimOp;
v->primOp = new PrimOp(std::move(primOp));
staticBaseEnv.vars[envName] = baseEnvDispl;
baseEnv.values[baseEnvDispl++] = v;
baseEnv.values[0]->attrs->push_back(Attr(primOp.name, v));
return v;
}
Value & EvalState::getBuiltin(const string & name)
{
return *baseEnv.values[0]->attrs->find(symbols.create(name))->value;