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-rw-r--r--third_party/nix/src/libexpr/value-to-xml.cc273
1 files changed, 134 insertions, 139 deletions
diff --git a/third_party/nix/src/libexpr/value-to-xml.cc b/third_party/nix/src/libexpr/value-to-xml.cc
index 00b1918a82..d9fddaafbb 100644
--- a/third_party/nix/src/libexpr/value-to-xml.cc
+++ b/third_party/nix/src/libexpr/value-to-xml.cc
@@ -1,178 +1,173 @@
 #include "value-to-xml.hh"
-#include "xml-writer.hh"
+#include <cstdlib>
 #include "eval-inline.hh"
 #include "util.hh"
-
-#include <cstdlib>
-
+#include "xml-writer.hh"
 
 namespace nix {
 
-
-static XMLAttrs singletonAttrs(const string & name, const string & value)
-{
-    XMLAttrs attrs;
-    attrs[name] = value;
-    return attrs;
+static XMLAttrs singletonAttrs(const string& name, const string& value) {
+  XMLAttrs attrs;
+  attrs[name] = value;
+  return attrs;
 }
 
+static void printValueAsXML(EvalState& state, bool strict, bool location,
+                            Value& v, XMLWriter& doc, PathSet& context,
+                            PathSet& drvsSeen);
 
-static void printValueAsXML(EvalState & state, bool strict, bool location,
-    Value & v, XMLWriter & doc, PathSet & context, PathSet & drvsSeen);
-
-
-static void posToXML(XMLAttrs & xmlAttrs, const Pos & pos)
-{
-    xmlAttrs["path"] = pos.file;
-    xmlAttrs["line"] = (format("%1%") % pos.line).str();
-    xmlAttrs["column"] = (format("%1%") % pos.column).str();
+static void posToXML(XMLAttrs& xmlAttrs, const Pos& pos) {
+  xmlAttrs["path"] = pos.file;
+  xmlAttrs["line"] = (format("%1%") % pos.line).str();
+  xmlAttrs["column"] = (format("%1%") % pos.column).str();
 }
 
+static void showAttrs(EvalState& state, bool strict, bool location,
+                      Bindings& attrs, XMLWriter& doc, PathSet& context,
+                      PathSet& drvsSeen) {
+  StringSet names;
 
-static void showAttrs(EvalState & state, bool strict, bool location,
-    Bindings & attrs, XMLWriter & doc, PathSet & context, PathSet & drvsSeen)
-{
-    StringSet names;
+  for (auto& i : attrs) names.insert(i.name);
 
-    for (auto & i : attrs)
-        names.insert(i.name);
+  for (auto& i : names) {
+    Attr& a(*attrs.find(state.symbols.create(i)));
 
-    for (auto & i : names) {
-        Attr & a(*attrs.find(state.symbols.create(i)));
-
-        XMLAttrs xmlAttrs;
-        xmlAttrs["name"] = i;
-        if (location && a.pos != &noPos) posToXML(xmlAttrs, *a.pos);
+    XMLAttrs xmlAttrs;
+    xmlAttrs["name"] = i;
+    if (location && a.pos != &noPos) posToXML(xmlAttrs, *a.pos);
 
-        XMLOpenElement _(doc, "attr", xmlAttrs);
-        printValueAsXML(state, strict, location,
-            *a.value, doc, context, drvsSeen);
-    }
+    XMLOpenElement _(doc, "attr", xmlAttrs);
+    printValueAsXML(state, strict, location, *a.value, doc, context, drvsSeen);
+  }
 }
 
+static void printValueAsXML(EvalState& state, bool strict, bool location,
+                            Value& v, XMLWriter& doc, PathSet& context,
+                            PathSet& drvsSeen) {
+  checkInterrupt();
 
-static void printValueAsXML(EvalState & state, bool strict, bool location,
-    Value & v, XMLWriter & doc, PathSet & context, PathSet & drvsSeen)
-{
-    checkInterrupt();
-
-    if (strict) state.forceValue(v);
-
-    switch (v.type) {
+  if (strict) state.forceValue(v);
 
-        case tInt:
-            doc.writeEmptyElement("int", singletonAttrs("value", (format("%1%") % v.integer).str()));
-            break;
+  switch (v.type) {
+    case tInt:
+      doc.writeEmptyElement(
+          "int", singletonAttrs("value", (format("%1%") % v.integer).str()));
+      break;
 
-        case tBool:
-            doc.writeEmptyElement("bool", singletonAttrs("value", v.boolean ? "true" : "false"));
-            break;
+    case tBool:
+      doc.writeEmptyElement(
+          "bool", singletonAttrs("value", v.boolean ? "true" : "false"));
+      break;
 
-        case tString:
-            /* !!! show the context? */
-            copyContext(v, context);
-            doc.writeEmptyElement("string", singletonAttrs("value", v.string.s));
-            break;
+    case tString:
+      /* !!! show the context? */
+      copyContext(v, context);
+      doc.writeEmptyElement("string", singletonAttrs("value", v.string.s));
+      break;
 
-        case tPath:
-            doc.writeEmptyElement("path", singletonAttrs("value", v.path));
-            break;
+    case tPath:
+      doc.writeEmptyElement("path", singletonAttrs("value", v.path));
+      break;
 
-        case tNull:
-            doc.writeEmptyElement("null");
-            break;
+    case tNull:
+      doc.writeEmptyElement("null");
+      break;
 
-        case tAttrs:
-            if (state.isDerivation(v)) {
-                XMLAttrs xmlAttrs;
-
-                Bindings::iterator a = v.attrs->find(state.symbols.create("derivation"));
-
-                Path drvPath;
-                a = v.attrs->find(state.sDrvPath);
-                if (a != v.attrs->end()) {
-                    if (strict) state.forceValue(*a->value);
-                    if (a->value->type == tString)
-                        xmlAttrs["drvPath"] = drvPath = a->value->string.s;
-                }
-
-                a = v.attrs->find(state.sOutPath);
-                if (a != v.attrs->end()) {
-                    if (strict) state.forceValue(*a->value);
-                    if (a->value->type == tString)
-                        xmlAttrs["outPath"] = a->value->string.s;
-                }
-
-                XMLOpenElement _(doc, "derivation", xmlAttrs);
-
-                if (drvPath != "" && drvsSeen.find(drvPath) == drvsSeen.end()) {
-                    drvsSeen.insert(drvPath);
-                    showAttrs(state, strict, location, *v.attrs, doc, context, drvsSeen);
-                } else
-                    doc.writeEmptyElement("repeated");
-            }
-
-            else {
-                XMLOpenElement _(doc, "attrs");
-                showAttrs(state, strict, location, *v.attrs, doc, context, drvsSeen);
-            }
+    case tAttrs:
+      if (state.isDerivation(v)) {
+        XMLAttrs xmlAttrs;
 
-            break;
+        Bindings::iterator a =
+            v.attrs->find(state.symbols.create("derivation"));
 
-        case tList1: case tList2: case tListN: {
-            XMLOpenElement _(doc, "list");
-            for (unsigned int n = 0; n < v.listSize(); ++n)
-                printValueAsXML(state, strict, location, *v.listElems()[n], doc, context, drvsSeen);
-            break;
+        Path drvPath;
+        a = v.attrs->find(state.sDrvPath);
+        if (a != v.attrs->end()) {
+          if (strict) state.forceValue(*a->value);
+          if (a->value->type == tString)
+            xmlAttrs["drvPath"] = drvPath = a->value->string.s;
         }
 
-        case tLambda: {
-            XMLAttrs xmlAttrs;
-            if (location) posToXML(xmlAttrs, v.lambda.fun->pos);
-            XMLOpenElement _(doc, "function", xmlAttrs);
-
-            if (v.lambda.fun->matchAttrs) {
-                XMLAttrs attrs;
-                if (!v.lambda.fun->arg.empty()) attrs["name"] = v.lambda.fun->arg;
-                if (v.lambda.fun->formals->ellipsis) attrs["ellipsis"] = "1";
-                XMLOpenElement _(doc, "attrspat", attrs);
-                for (auto & i : v.lambda.fun->formals->formals)
-                    doc.writeEmptyElement("attr", singletonAttrs("name", i.name));
-            } else
-                doc.writeEmptyElement("varpat", singletonAttrs("name", v.lambda.fun->arg));
-
-            break;
+        a = v.attrs->find(state.sOutPath);
+        if (a != v.attrs->end()) {
+          if (strict) state.forceValue(*a->value);
+          if (a->value->type == tString)
+            xmlAttrs["outPath"] = a->value->string.s;
         }
 
-        case tExternal:
-            v.external->printValueAsXML(state, strict, location, doc, context, drvsSeen);
-            break;
-
-        case tFloat:
-            doc.writeEmptyElement("float", singletonAttrs("value", (format("%1%") % v.fpoint).str()));
-            break;
+        XMLOpenElement _(doc, "derivation", xmlAttrs);
+
+        if (drvPath != "" && drvsSeen.find(drvPath) == drvsSeen.end()) {
+          drvsSeen.insert(drvPath);
+          showAttrs(state, strict, location, *v.attrs, doc, context, drvsSeen);
+        } else
+          doc.writeEmptyElement("repeated");
+      }
+
+      else {
+        XMLOpenElement _(doc, "attrs");
+        showAttrs(state, strict, location, *v.attrs, doc, context, drvsSeen);
+      }
+
+      break;
+
+    case tList1:
+    case tList2:
+    case tListN: {
+      XMLOpenElement _(doc, "list");
+      for (unsigned int n = 0; n < v.listSize(); ++n)
+        printValueAsXML(state, strict, location, *v.listElems()[n], doc,
+                        context, drvsSeen);
+      break;
+    }
 
-        default:
-            doc.writeEmptyElement("unevaluated");
+    case tLambda: {
+      XMLAttrs xmlAttrs;
+      if (location) posToXML(xmlAttrs, v.lambda.fun->pos);
+      XMLOpenElement _(doc, "function", xmlAttrs);
+
+      if (v.lambda.fun->matchAttrs) {
+        XMLAttrs attrs;
+        if (!v.lambda.fun->arg.empty()) attrs["name"] = v.lambda.fun->arg;
+        if (v.lambda.fun->formals->ellipsis) attrs["ellipsis"] = "1";
+        XMLOpenElement _(doc, "attrspat", attrs);
+        for (auto& i : v.lambda.fun->formals->formals)
+          doc.writeEmptyElement("attr", singletonAttrs("name", i.name));
+      } else
+        doc.writeEmptyElement("varpat",
+                              singletonAttrs("name", v.lambda.fun->arg));
+
+      break;
     }
-}
 
+    case tExternal:
+      v.external->printValueAsXML(state, strict, location, doc, context,
+                                  drvsSeen);
+      break;
 
-void ExternalValueBase::printValueAsXML(EvalState & state, bool strict,
-    bool location, XMLWriter & doc, PathSet & context, PathSet & drvsSeen) const
-{
-    doc.writeEmptyElement("unevaluated");
-}
+    case tFloat:
+      doc.writeEmptyElement(
+          "float", singletonAttrs("value", (format("%1%") % v.fpoint).str()));
+      break;
 
-
-void printValueAsXML(EvalState & state, bool strict, bool location,
-    Value & v, std::ostream & out, PathSet & context)
-{
-    XMLWriter doc(true, out);
-    XMLOpenElement root(doc, "expr");
-    PathSet drvsSeen;
-    printValueAsXML(state, strict, location, v, doc, context, drvsSeen);
+    default:
+      doc.writeEmptyElement("unevaluated");
+  }
 }
 
+void ExternalValueBase::printValueAsXML(EvalState& state, bool strict,
+                                        bool location, XMLWriter& doc,
+                                        PathSet& context,
+                                        PathSet& drvsSeen) const {
+  doc.writeEmptyElement("unevaluated");
+}
 
+void printValueAsXML(EvalState& state, bool strict, bool location, Value& v,
+                     std::ostream& out, PathSet& context) {
+  XMLWriter doc(true, out);
+  XMLOpenElement root(doc, "expr");
+  PathSet drvsSeen;
+  printValueAsXML(state, strict, location, v, doc, context, drvsSeen);
 }
+
+}  // namespace nix
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