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-rw-r--r--src/libexpr/eval.cc38
-rw-r--r--src/libexpr/value.hh5
-rw-r--r--src/nix-env/user-env.cc4
-rw-r--r--tests/user-envs.nix3
4 files changed, 32 insertions, 18 deletions
diff --git a/src/libexpr/eval.cc b/src/libexpr/eval.cc
index 333ad68eb..3ec5ed202 100644
--- a/src/libexpr/eval.cc
+++ b/src/libexpr/eval.cc
@@ -96,20 +96,20 @@ RootValue allocRootValue(Value * v)
}
-void printValue(std::ostream & str, std::set<const void *> & seen, const Value & v)
+void Value::print(std::ostream & str, std::set<const void *> * seen) const
{
checkInterrupt();
- switch (v.internalType) {
+ switch (internalType) {
case tInt:
- str << v.integer;
+ str << integer;
break;
case tBool:
- str << (v.boolean ? "true" : "false");
+ str << (boolean ? "true" : "false");
break;
case tString:
str << "\"";
- for (const char * i = v.string.s; *i; i++)
+ for (const char * i = string.s; *i; i++)
if (*i == '\"' || *i == '\\') str << "\\" << *i;
else if (*i == '\n') str << "\\n";
else if (*i == '\r') str << "\\r";
@@ -119,19 +119,19 @@ void printValue(std::ostream & str, std::set<const void *> & seen, const Value &
str << "\"";
break;
case tPath:
- str << v.path; // !!! escaping?
+ str << path; // !!! escaping?
break;
case tNull:
str << "null";
break;
case tAttrs: {
- if (!v.attrs->empty() && !seen.insert(v.attrs).second)
+ if (seen && !attrs->empty() && !seen->insert(attrs).second)
str << "«repeated»";
else {
str << "{ ";
- for (auto & i : v.attrs->lexicographicOrder()) {
+ for (auto & i : attrs->lexicographicOrder()) {
str << i->name << " = ";
- printValue(str, seen, *i->value);
+ i->value->print(str, seen);
str << "; ";
}
str << "}";
@@ -141,12 +141,12 @@ void printValue(std::ostream & str, std::set<const void *> & seen, const Value &
case tList1:
case tList2:
case tListN:
- if (v.listSize() && !seen.insert(v.listElems()).second)
+ if (seen && listSize() && !seen->insert(listElems()).second)
str << "«repeated»";
else {
str << "[ ";
- for (auto v2 : v.listItems()) {
- printValue(str, seen, *v2);
+ for (auto v2 : listItems()) {
+ v2->print(str, seen);
str << " ";
}
str << "]";
@@ -166,10 +166,10 @@ void printValue(std::ostream & str, std::set<const void *> & seen, const Value &
str << "<PRIMOP-APP>";
break;
case tExternal:
- str << *v.external;
+ str << *external;
break;
case tFloat:
- str << v.fpoint;
+ str << fpoint;
break;
default:
abort();
@@ -177,10 +177,16 @@ void printValue(std::ostream & str, std::set<const void *> & seen, const Value &
}
-std::ostream & operator << (std::ostream & str, const Value & v)
+void Value::print(std::ostream & str, bool showRepeated) const
{
std::set<const void *> seen;
- printValue(str, seen, v);
+ print(str, showRepeated ? nullptr : &seen);
+}
+
+
+std::ostream & operator << (std::ostream & str, const Value & v)
+{
+ v.print(str, false);
return str;
}
diff --git a/src/libexpr/value.hh b/src/libexpr/value.hh
index d413060f9..3d07c3198 100644
--- a/src/libexpr/value.hh
+++ b/src/libexpr/value.hh
@@ -119,10 +119,13 @@ private:
InternalType internalType;
friend std::string showType(const Value & v);
- friend void printValue(std::ostream & str, std::set<const void *> & seen, const Value & v);
+
+ void print(std::ostream & str, std::set<const void *> * seen) const;
public:
+ void print(std::ostream & str, bool showRepeated = false) const;
+
// Functions needed to distinguish the type
// These should be removed eventually, by putting the functionality that's
// needed by callers into methods of this type
diff --git a/src/nix-env/user-env.cc b/src/nix-env/user-env.cc
index bcc7736ac..78692b9c6 100644
--- a/src/nix-env/user-env.cc
+++ b/src/nix-env/user-env.cc
@@ -105,8 +105,10 @@ bool createUserEnv(EvalState & state, DrvInfos & elems,
/* Also write a copy of the list of user environment elements to
the store; we need it for future modifications of the
environment. */
+ std::ostringstream str;
+ manifest.print(str, true);
auto manifestFile = state.store->addTextToStore("env-manifest.nix",
- fmt("%s", manifest), references);
+ str.str(), references);
/* Get the environment builder expression. */
Value envBuilder;
diff --git a/tests/user-envs.nix b/tests/user-envs.nix
index 6ac896ed8..46f8b51dd 100644
--- a/tests/user-envs.nix
+++ b/tests/user-envs.nix
@@ -8,6 +8,8 @@ assert foo == "foo";
let
+ platforms = let x = "foobar"; in [ x x ];
+
makeDrv = name: progName: (mkDerivation {
name = assert progName != "fail"; name;
inherit progName system;
@@ -15,6 +17,7 @@ let
} // {
meta = {
description = "A silly test package with some \${escaped anti-quotation} in it";
+ inherit platforms;
};
});