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forceString: Show position info

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This commit is contained in:
Eelco Dolstra 2014-04-04 21:14:11 +02:00
parent 27b44b8cf7
commit a5fe730940
6 changed files with 46 additions and 30 deletions
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24
src/libexpr/primops.cc
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@ -299,7 +299,7 @@ static void prim_tryEval(EvalState & state, const Pos & pos, Value * * args, Val
/* Return an environment variable. Use with care. */
static void prim_getEnv(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
string name = state.forceStringNoCtx(*args[0]);
string name = state.forceStringNoCtx(*args[0], pos);
mkString(v, getEnv(name));
}
@ -343,7 +343,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
string drvName;
Pos & posDrvName(*attr->pos);
try {
drvName = state.forceStringNoCtx(*attr->value);
drvName = state.forceStringNoCtx(*attr->value, pos);
} catch (Error & e) {
e.addPrefix(format("while evaluating the derivation attribute `name' at %1%:\n") % posDrvName);
throw;
@ -664,7 +664,7 @@ static void prim_toJSON(EvalState & state, const Pos & pos, Value * * args, Valu
static void prim_toFile(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
PathSet context;
string name = state.forceStringNoCtx(*args[0]);
string name = state.forceStringNoCtx(*args[0], pos);
string contents = state.forceString(*args[1], context);
PathSet refs;
@ -775,7 +775,7 @@ static void prim_attrNames(EvalState & state, const Pos & pos, Value * * args, V
/* Dynamic version of the `.' operator. */
void prim_getAttr(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
string attr = state.forceStringNoCtx(*args[0]);
string attr = state.forceStringNoCtx(*args[0], pos);
state.forceAttrs(*args[1], pos);
// !!! Should we create a symbol here or just do a lookup?
Bindings::iterator i = args[1]->attrs->find(state.symbols.create(attr));
@ -791,7 +791,7 @@ void prim_getAttr(EvalState & state, const Pos & pos, Value * * args, Value & v)
/* Return position information of the specified attribute. */
void prim_unsafeGetAttrPos(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
string attr = state.forceStringNoCtx(*args[0]);
string attr = state.forceStringNoCtx(*args[0], pos);
state.forceAttrs(*args[1], pos);
Bindings::iterator i = args[1]->attrs->find(state.symbols.create(attr));
if (i == args[1]->attrs->end())
@ -804,7 +804,7 @@ void prim_unsafeGetAttrPos(EvalState & state, const Pos & pos, Value * * args, V
/* Dynamic version of the `?' operator. */
static void prim_hasAttr(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
string attr = state.forceStringNoCtx(*args[0]);
string attr = state.forceStringNoCtx(*args[0], pos);
state.forceAttrs(*args[1], pos);
mkBool(v, args[1]->attrs->find(state.symbols.create(attr)) != args[1]->attrs->end());
}
@ -826,7 +826,7 @@ static void prim_removeAttrs(EvalState & state, const Pos & pos, Value * * args,
/* Get the attribute names to be removed. */
std::set<Symbol> names;
for (unsigned int i = 0; i < args[1]->list.length; ++i) {
state.forceStringNoCtx(*args[1]->list.elems[i]);
state.forceStringNoCtx(*args[1]->list.elems[i], pos);
names.insert(state.symbols.create(args[1]->list.elems[i]->string.s));
}
@ -861,7 +861,7 @@ static void prim_listToAttrs(EvalState & state, const Pos & pos, Value * * args,
Bindings::iterator j = v2.attrs->find(state.sName);
if (j == v2.attrs->end())
throw TypeError(format("`name' attribute missing in a call to `listToAttrs', at %1%") % pos);
string name = state.forceStringNoCtx(*j->value);
string name = state.forceStringNoCtx(*j->value, pos);
Symbol sym = state.symbols.create(name);
if (seen.find(sym) == seen.end()) {
@ -1168,7 +1168,7 @@ static void prim_unsafeDiscardOutputDependency(EvalState & state, const Pos & po
/* Return the cryptographic hash of a string in base-16. */
static void prim_hashString(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
string type = state.forceStringNoCtx(*args[0]);
string type = state.forceStringNoCtx(*args[0], pos);
HashType ht = parseHashType(type);
if (ht == htUnknown)
throw Error(format("unknown hash type `%1%', at %2%") % type % pos);
@ -1187,7 +1187,7 @@ static void prim_hashString(EvalState & state, const Pos & pos, Value * * args,
static void prim_parseDrvName(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
string name = state.forceStringNoCtx(*args[0]);
string name = state.forceStringNoCtx(*args[0], pos);
DrvName parsed(name);
state.mkAttrs(v, 2);
mkString(*state.allocAttr(v, state.sName), parsed.name);
@ -1198,8 +1198,8 @@ static void prim_parseDrvName(EvalState & state, const Pos & pos, Value * * args
static void prim_compareVersions(EvalState & state, const Pos & pos, Value * * args, Value & v)
{
string version1 = state.forceStringNoCtx(*args[0]);
string version2 = state.forceStringNoCtx(*args[1]);
string version1 = state.forceStringNoCtx(*args[0], pos);
string version2 = state.forceStringNoCtx(*args[1], pos);
mkInt(v, compareVersions(version1, version2));
}