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Show position info in Boolean operations

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This commit is contained in:
Eelco Dolstra 2014-04-04 22:43:52 +02:00
parent bd9b1d97b4
commit 4c5faad994
5 changed files with 28 additions and 31 deletions
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24
src/libexpr/eval.cc
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@ -574,6 +574,16 @@ inline bool EvalState::evalBool(Env & env, Expr * e)
}
inline bool EvalState::evalBool(Env & env, Expr * e, const Pos & pos)
{
Value v;
e->eval(*this, env, v);
if (v.type != tBool)
throwTypeError("value is %1% while a Boolean was expected, at %2%", v, pos);
return v.boolean;
}
inline void EvalState::evalAttrs(Env & env, Expr * e, Value & v)
{
e->eval(*this, env, v);
@ -975,7 +985,7 @@ void ExprIf::eval(EvalState & state, Env & env, Value & v)
void ExprAssert::eval(EvalState & state, Env & env, Value & v)
{
if (!state.evalBool(env, cond))
if (!state.evalBool(env, cond, pos))
throwAssertionError("assertion failed at %1%", pos);
body->eval(state, env, v);
}
@ -1016,19 +1026,19 @@ void ExprOpNEq::eval(EvalState & state, Env & env, Value & v)
void ExprOpAnd::eval(EvalState & state, Env & env, Value & v)
{
mkBool(v, state.evalBool(env, e1) && state.evalBool(env, e2));
mkBool(v, state.evalBool(env, e1, pos) && state.evalBool(env, e2, pos));
}
void ExprOpOr::eval(EvalState & state, Env & env, Value & v)
{
mkBool(v, state.evalBool(env, e1) || state.evalBool(env, e2));
mkBool(v, state.evalBool(env, e1, pos) || state.evalBool(env, e2, pos));
}
void ExprOpImpl::eval(EvalState & state, Env & env, Value & v)
{
mkBool(v, !state.evalBool(env, e1) || state.evalBool(env, e2));
mkBool(v, !state.evalBool(env, e1, pos) || state.evalBool(env, e2, pos));
}
@ -1073,18 +1083,18 @@ void ExprOpConcatLists::eval(EvalState & state, Env & env, Value & v)
Value v1; e1->eval(state, env, v1);
Value v2; e2->eval(state, env, v2);
Value * lists[2] = { &v1, &v2 };
state.concatLists(v, 2, lists);
state.concatLists(v, 2, lists, pos);
}
void EvalState::concatLists(Value & v, unsigned int nrLists, Value * * lists)
void EvalState::concatLists(Value & v, unsigned int nrLists, Value * * lists, const Pos & pos)
{
nrListConcats++;
Value * nonEmpty = 0;
unsigned int len = 0;
for (unsigned int n = 0; n < nrLists; ++n) {
forceList(*lists[n]);
forceList(*lists[n], pos);
unsigned int l = lists[n]->list.length;
len += l;
if (l) nonEmpty = lists[n];