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-rw-r--r--src/libexpr/eval.cc152
-rw-r--r--src/libexpr/expr-to-xml.cc30
-rw-r--r--src/libexpr/nixexpr-ast.def6
-rw-r--r--src/libexpr/nixexpr.cc67
-rw-r--r--src/libexpr/nixexpr.hh4
-rw-r--r--src/libexpr/parser.y33
-rw-r--r--src/libexpr/primops.cc8
-rw-r--r--tests/lang/eval-okay-xml.exp.xml16
-rw-r--r--tests/lang/eval-okay-xml.nix4
-rw-r--r--tests/lang/parse-okay-1.exp2
-rw-r--r--tests/lang/parse-okay-regression-20041027.exp2
-rw-r--r--tests/lang/parse-okay-subversion.exp2
12 files changed, 181 insertions, 145 deletions
diff --git a/src/libexpr/eval.cc b/src/libexpr/eval.cc
index 15cccc6b7f..95a70ac273 100644
--- a/src/libexpr/eval.cc
+++ b/src/libexpr/eval.cc
@@ -74,63 +74,87 @@ LocalNoInline(void addErrorPrefix(Error & e, const char * s, const string & s2,
 }
 
 
-/* Substitute an argument set into the body of a function. */
-static Expr substArgs(EvalState & state,
-    Expr body, ATermList formals, Expr arg)
+static void patternMatch(EvalState & state,
+    Pattern pat, Expr arg, ATermMap & subs)
 {
-    unsigned int nrFormals = ATgetLength(formals);
-    ATermMap subs(nrFormals);
-
-    /* Get the actual arguments and put them in the substitution. */
-    ATermMap args;
-    queryAllAttrs(arg, args);
-    for (ATermMap::const_iterator i = args.begin(); i != args.end(); ++i)
-        subs.set(i->key, i->value);
+    ATerm name;
+    ATermList formals;
     
-    /* Get the formal arguments. */
-    ATermVector defsUsed;
-    ATermList recAttrs = ATempty;
-    for (ATermIterator i(formals); i; ++i) {
-        Expr name, def;
-        DefaultValue def2;
-        if (!matchFormal(*i, name, def2)) abort(); /* can't happen */
-
-        Expr value = subs[name];
-        
-        if (value == 0) {
-            if (!matchDefaultValue(def2, def)) def = 0;
-            if (def == 0) throw TypeError(format("the argument named `%1%' required by the function is missing")
-                % aterm2String(name));
-            value = def;
-            defsUsed.push_back(name);
-            recAttrs = ATinsert(recAttrs, makeBind(name, def, makeNoPos()));
-        }
-    }
+    if (matchVarPat(pat, name)) 
+        subs.set(name, arg);
+
+    else if (matchAttrsPat(pat, formals)) {
+
+        arg = evalExpr(state, arg);
+
+        unsigned int nrFormals = ATgetLength(formals);
 
-    /* Make a recursive attribute set out of the (argument-name,
-       value) tuples.  This is so that we can support default
-       parameters that refer to each other, e.g.  ({x, y ? x + x}: y)
-       {x = "foo";} evaluates to "foofoo". */
-    if (defsUsed.size() != 0) {
+        /* Get the actual arguments and put them in the substitution.
+           !!! shouldn't do this once we add `...'.*/
+        ATermMap args;
+        queryAllAttrs(arg, args);
         for (ATermMap::const_iterator i = args.begin(); i != args.end(); ++i)
-            recAttrs = ATinsert(recAttrs, makeBind(i->key, i->value, makeNoPos()));
-        Expr rec = makeRec(recAttrs, ATempty);
-        for (ATermVector::iterator i = defsUsed.begin(); i != defsUsed.end(); ++i)
-            subs.set(*i, makeSelect(rec, *i));
-    }
-    
-    if (subs.size() != nrFormals) {
-        /* One or more actual arguments were not declared as formal
-           arguments.  Find out which. */
+            subs.set(i->key, i->value);
+        
+        /* Get the formal arguments. */
+        ATermVector defsUsed;
+        ATermList recAttrs = ATempty;
         for (ATermIterator i(formals); i; ++i) {
-            Expr name; ATerm d1;
-            if (!matchFormal(*i, name, d1)) abort();
-            subs.remove(name);
+            Expr name, def;
+            DefaultValue def2;
+            if (!matchFormal(*i, name, def2)) abort(); /* can't happen */
+
+            Expr value = subs[name];
+        
+            if (value == 0) {
+                if (!matchDefaultValue(def2, def)) def = 0;
+                if (def == 0) throw TypeError(format("the argument named `%1%' required by the function is missing")
+                    % aterm2String(name));
+                value = def;
+                defsUsed.push_back(name);
+                recAttrs = ATinsert(recAttrs, makeBind(name, def, makeNoPos()));
+            }
+
+        }
+        
+        /* Make a recursive attribute set out of the (argument-name,
+           value) tuples.  This is so that we can support default
+           parameters that refer to each other, e.g.  ({x, y ? x + x}:
+           y) {x = "foo";} evaluates to "foofoo". */
+        if (defsUsed.size() != 0) {
+            for (ATermMap::const_iterator i = args.begin(); i != args.end(); ++i)
+                recAttrs = ATinsert(recAttrs, makeBind(i->key, i->value, makeNoPos()));
+            Expr rec = makeRec(recAttrs, ATempty);
+            for (ATermVector::iterator i = defsUsed.begin(); i != defsUsed.end(); ++i)
+                subs.set(*i, makeSelect(rec, *i));
+        }
+    
+        if (subs.size() != nrFormals) {
+            /* One or more actual arguments were not declared as
+               formal arguments.  Find out which. */
+            for (ATermIterator i(formals); i; ++i) {
+                Expr name; ATerm d1;
+                if (!matchFormal(*i, name, d1)) abort();
+                subs.remove(name);
+            }
+            throw TypeError(format("the function does not expect an argument named `%1%'")
+                % aterm2String(subs.begin()->key));
         }
-        throw TypeError(format("the function does not expect an argument named `%1%'")
-            % aterm2String(subs.begin()->key));
+
     }
 
+    else abort();
+}
+
+
+/* Substitute an argument set into the body of a function. */
+static Expr substArgs(EvalState & state,
+    Expr body, Pattern pat, Expr arg)
+{
+    ATermMap subs(16);
+    
+    patternMatch(state, pat, arg, subs);
+
     return substitute(Substitution(0, &subs), body);
 }
 
@@ -370,10 +394,12 @@ Path coerceToPath(EvalState & state, Expr e, PathSet & context)
 
 Expr autoCallFunction(Expr e, const ATermMap & args)
 {
-    ATermList formals;
+    Pattern pat;
     ATerm body, pos;
-    
-    if (matchFunction(e, formals, body, pos)) {
+    ATermList formals;
+
+    /* !!! this should be more general */
+    if (matchFunction(e, pat, body, pos) && matchAttrsPat(pat, formals)) {
         ATermMap actualArgs(ATgetLength(formals));
         
         for (ATermIterator i(formals); i; ++i) {
@@ -418,8 +444,8 @@ LocalNoInline(Expr evalVar(EvalState & state, ATerm name))
 
 LocalNoInline(Expr evalCall(EvalState & state, Expr fun, Expr arg))
 {
-    ATermList formals;
-    ATerm pos, name;
+    Pattern pat;
+    ATerm pos;
     Expr body;
         
     /* Evaluate the left-hand side. */
@@ -445,10 +471,9 @@ LocalNoInline(Expr evalCall(EvalState & state, Expr fun, Expr arg))
             return makePrimOp(arity, funBlob, args);
     }
 
-    else if (matchFunction(fun, formals, body, pos)) {
-        arg = evalExpr(state, arg);
+    else if (matchFunction(fun, pat, body, pos)) {
         try {
-            return evalExpr(state, substArgs(state, body, formals, arg));
+            return evalExpr(state, substArgs(state, body, pat, arg));
         } catch (Error & e) {
             addErrorPrefix(e, "while evaluating the function at %1%:\n",
                 showPos(pos));
@@ -456,18 +481,6 @@ LocalNoInline(Expr evalCall(EvalState & state, Expr fun, Expr arg))
         }
     }
         
-    else if (matchFunction1(fun, name, body, pos)) {
-        try {
-            ATermMap subs(1);
-            subs.set(name, arg);
-            return evalExpr(state, substitute(Substitution(0, &subs), body));
-        } catch (Error & e) {
-            addErrorPrefix(e, "while evaluating the function at %1%:\n",
-                showPos(pos));
-            throw;
-        }
-    }
-
     else throwTypeError(
         "attempt to call something which is neither a function nor a primop (built-in operation) but %1%",
         showType(fun));
@@ -624,7 +637,6 @@ Expr evalExpr2(EvalState & state, Expr e)
         sym == symInt ||
         sym == symBool ||
         sym == symFunction ||
-        sym == symFunction1 ||
         sym == symAttrs ||
         sym == symList ||
         sym == symPrimOp)
diff --git a/src/libexpr/expr-to-xml.cc b/src/libexpr/expr-to-xml.cc
index c47f24e6c0..5aa537b200 100644
--- a/src/libexpr/expr-to-xml.cc
+++ b/src/libexpr/expr-to-xml.cc
@@ -40,6 +40,23 @@ static void showAttrs(const ATermMap & attrs, XMLWriter & doc,
 }
 
 
+static void printPatternAsXML(Pattern pat, XMLWriter & doc, PathSet & context)
+{
+    ATerm name;
+    ATermList formals;
+    if (matchVarPat(pat, name))
+        doc.writeEmptyElement("varpat", singletonAttrs("name", aterm2String(name)));
+    else if (matchAttrsPat(pat, formals)) {
+        XMLOpenElement _(doc, "attrspat");
+        for (ATermIterator i(formals); i; ++i) {
+            Expr name; ATerm dummy;
+            if (!matchFormal(*i, name, dummy)) abort();
+            doc.writeEmptyElement("attr", singletonAttrs("name", aterm2String(name)));
+        }
+    }
+}
+
+
 static void printTermAsXML(Expr e, XMLWriter & doc, PathSet & context,
     ExprSet & drvsSeen)
 {
@@ -47,8 +64,8 @@ static void printTermAsXML(Expr e, XMLWriter & doc, PathSet & context,
     string s;
     ATerm s2;
     int i;
-    ATermList as, es, formals;
-    ATerm body, pos;
+    ATermList as, es;
+    ATerm pat, body, pos;
 
     checkInterrupt();
 
@@ -109,14 +126,9 @@ static void printTermAsXML(Expr e, XMLWriter & doc, PathSet & context,
             printTermAsXML(*i, doc, context, drvsSeen);
     }
 
-    else if (matchFunction(e, formals, body, pos)) {
+    else if (matchFunction(e, pat, body, pos)) {
         XMLOpenElement _(doc, "function");
-        
-        for (ATermIterator i(formals); i; ++i) {
-            Expr name; ATerm dummy;
-            if (!matchFormal(*i, name, dummy)) abort();
-            XMLOpenElement _(doc, "arg", singletonAttrs("name", aterm2String(name)));
-        }
+        printPatternAsXML(pat, doc, context);
     }
 
     else
diff --git a/src/libexpr/nixexpr-ast.def b/src/libexpr/nixexpr-ast.def
index a57a48613e..6b9cf95faf 100644
--- a/src/libexpr/nixexpr-ast.def
+++ b/src/libexpr/nixexpr-ast.def
@@ -3,8 +3,7 @@ init initNixExprHelpers
 Pos | string int int | Pos |
 NoPos | | Pos |
 
-Function | ATermList Expr Pos | Expr |
-Function1 | string Expr Pos | Expr |
+Function | Pattern Expr Pos | Expr |
 Assert | Expr Expr Pos | Expr |
 With | Expr Expr Pos | Expr |
 If | Expr Expr Expr | Expr |
@@ -76,6 +75,9 @@ Inherit | Expr ATermList Pos | ATerm |
 
 Scope | | Expr |
 
+VarPat | string | Pattern |
+AttrsPat | ATermList | Pattern |
+
 Formal | string DefaultValue | ATerm |
 
 DefaultValue | Expr | DefaultValue |
diff --git a/src/libexpr/nixexpr.cc b/src/libexpr/nixexpr.cc
index 310f714718..4744cdde39 100644
--- a/src/libexpr/nixexpr.cc
+++ b/src/libexpr/nixexpr.cc
@@ -110,6 +110,25 @@ Expr makeAttrs(const ATermMap & attrs)
 }
 
 
+static void varsBoundByPattern(ATermMap & map, Pattern pat)
+{
+    ATerm name;
+    ATermList formals;
+    /* Use makeRemoved() so that it can be used directly in
+       substitute(). */
+    if (matchVarPat(pat, name))
+        map.set(name, makeRemoved());
+    else if (matchAttrsPat(pat, formals)) { 
+        for (ATermIterator i(formals); i; ++i) {
+            ATerm d1;
+            if (!matchFormal(*i, name, d1)) abort();
+            map.set(name, makeRemoved());
+        }
+    }
+    else abort();
+}
+
+
 Expr substitute(const Substitution & subs, Expr e)
 {
     checkInterrupt();
@@ -135,27 +154,17 @@ Expr substitute(const Substitution & subs, Expr e)
 
     /* In case of a function, filter out all variables bound by this
        function. */
-    ATermList formals;
+    Pattern pat;
     ATerm body;
-    if (matchFunction(e, formals, body, pos)) {
-        ATermMap map(ATgetLength(formals));
-        for (ATermIterator i(formals); i; ++i) {
-            ATerm d1;
-            if (!matchFormal(*i, name, d1)) abort();
-            map.set(name, makeRemoved());
-        }
+    if (matchFunction(e, pat, body, pos)) {
+        ATermMap map(16);
+        varsBoundByPattern(map, pat);
         Substitution subs2(&subs, &map);
         return makeFunction(
-            (ATermList) substitute(subs2, (ATerm) formals),
+            (Pattern) substitute(subs2, (Expr) pat),
             substitute(subs2, body), pos);
     }
 
-    if (matchFunction1(e, name, body, pos)) {
-        ATermMap map(1);
-        map.set(name, makeRemoved());
-        return makeFunction1(name, substitute(Substitution(&subs, &map), body), pos);
-    }
-        
     /* Idem for a mutually recursive attribute set. */
     ATermList rbnds, nrbnds;
     if (matchRec(e, rbnds, nrbnds)) {
@@ -213,9 +222,9 @@ static void checkVarDefs2(set<Expr> & done, const ATermMap & defs, Expr e)
     done.insert(e);
     
     ATerm name, pos, value;
-    ATermList formals;
     ATerm with, body;
     ATermList rbnds, nrbnds;
+    Pattern pat;
 
     /* Closed terms don't have free variables, so we don't have to
        check by definition. */
@@ -227,27 +236,11 @@ static void checkVarDefs2(set<Expr> & done, const ATermMap & defs, Expr e)
                 % aterm2String(name));
     }
 
-    else if (matchFunction(e, formals, body, pos)) {
-        ATermMap defs2(defs);
-        for (ATermIterator i(formals); i; ++i) {
-            ATerm d1;
-            if (!matchFormal(*i, name, d1)) abort();
-            defs2.set(name, (ATerm) ATempty);
-        }
-        for (ATermIterator i(formals); i; ++i) {
-            ATerm deflt;
-            set<Expr> done2;
-            if (!matchFormal(*i, name, deflt)) abort();
-            checkVarDefs2(done2, defs2, deflt);
-        }
-        set<Expr> done2;
-        checkVarDefs2(done2, defs2, body);
-    }
-        
-    else if (matchFunction1(e, name, body, pos)) {
+    else if (matchFunction(e, pat, body, pos)) {
         ATermMap defs2(defs);
-        defs2.set(name, (ATerm) ATempty);
+        varsBoundByPattern(defs2, pat);
         set<Expr> done2;
+        checkVarDefs2(done2, defs2, pat);
         checkVarDefs2(done2, defs2, body);
     }
         
@@ -365,13 +358,13 @@ string showType(Expr e)
     ATermList l1;
     ATermBlob b1;
     int i1;
+    Pattern p1;
     if (matchStr(e, t1, l1)) return "a string";
     if (matchPath(e, t1)) return "a path";
     if (matchNull(e)) return "null";
     if (matchInt(e, i1)) return "an integer";
     if (matchBool(e, t1)) return "a boolean";
-    if (matchFunction(e, l1, t1, t2)) return "a function";
-    if (matchFunction1(e, t1, t2, t3)) return "a function";
+    if (matchFunction(e, p1, t1, t2)) return "a function";
     if (matchAttrs(e, l1)) return "an attribute set";
     if (matchList(e, l1)) return "a list";
     if (matchPrimOp(e, i1, b1, l1)) return "a partially applied built-in function";
diff --git a/src/libexpr/nixexpr.hh b/src/libexpr/nixexpr.hh
index dabbaa3237..320d1dc977 100644
--- a/src/libexpr/nixexpr.hh
+++ b/src/libexpr/nixexpr.hh
@@ -21,11 +21,9 @@ MakeError(TypeError, EvalError)
    property of the ATerm library allows us to implement caching of
    normals forms efficiently. */
 typedef ATerm Expr;
-
 typedef ATerm DefaultValue;
-typedef ATerm ValidValues;
-
 typedef ATerm Pos;
+typedef ATerm Pattern;
 
 
 /* A STL vector of ATerms.  Should be used with great care since it's
diff --git a/src/libexpr/parser.y b/src/libexpr/parser.y
index 9c941bb7d4..067a0f8d54 100644
--- a/src/libexpr/parser.y
+++ b/src/libexpr/parser.y
@@ -237,9 +237,9 @@ expr: expr_function;
 
 expr_function
   : '{' formals '}' ':' expr_function
-    { $$ = makeFunction($2, $5, CUR_POS); }
+    { $$ = makeFunction(makeAttrsPat($2), $5, CUR_POS); }
   | ID ':' expr_function
-    { $$ = makeFunction1($1, $3, CUR_POS); }
+    { $$ = makeFunction(makeVarPat($1), $3, CUR_POS); }
   | ASSERT expr ';' expr_function
     { $$ = makeAssert($2, $4, CUR_POS); }
   | WITH expr ';' expr_function
@@ -387,22 +387,37 @@ static void checkAttrs(ATermMap & names, ATermList bnds)
 }
 
 
-static void checkAttrSets(ATerm e)
+static void checkPatternVars(ATerm pos, ATermMap & map, Pattern pat)
 {
+    ATerm name;
     ATermList formals;
-    ATerm body, pos;
-    if (matchFunction(e, formals, body, pos)) {
-        ATermMap names(ATgetLength(formals));
+    if (matchVarPat(pat, name)) {
+        if (map.get(name))
+            throw EvalError(format("duplicate formal function argument `%1%' at %2%")
+                % aterm2String(name) % showPos(pos));
+        map.set(name, name);
+    }
+    else if (matchAttrsPat(pat, formals)) { 
         for (ATermIterator i(formals); i; ++i) {
-            ATerm name;
             ATerm d1;
             if (!matchFormal(*i, name, d1)) abort();
-            if (names.get(name))
+            if (map.get(name))
                 throw EvalError(format("duplicate formal function argument `%1%' at %2%")
                     % aterm2String(name) % showPos(pos));
-            names.set(name, name);
+            map.set(name, name);
         }
     }
+    else abort();
+}
+
+
+static void checkAttrSets(ATerm e)
+{
+    ATerm pat, body, pos;
+    if (matchFunction(e, pat, body, pos)) {
+        ATermMap map(16);
+        checkPatternVars(pos, map, pat);
+    }
 
     ATermList bnds;
     if (matchAttrs(e, bnds)) {
diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc
index c747f46c46..50a6416700 100644
--- a/src/libexpr/primops.cc
+++ b/src/libexpr/primops.cc
@@ -120,11 +120,9 @@ static Expr prim_isNull(EvalState & state, const ATermVector & args)
 static Expr prim_isFunction(EvalState & state, const ATermVector & args)
 {
     Expr e = evalExpr(state, args[0]);
-    ATermList formals;
-    ATerm name, body, pos;
-    return makeBool(
-        matchFunction(e, formals, body, pos) ||
-        matchFunction1(e, name, body, pos));
+    Pattern pat;
+    ATerm body, pos;
+    return makeBool(matchFunction(e, pat, body, pos));
 }
 
 
diff --git a/tests/lang/eval-okay-xml.exp.xml b/tests/lang/eval-okay-xml.exp.xml
index 0310f335c3..4798e87f87 100644
--- a/tests/lang/eval-okay-xml.exp.xml
+++ b/tests/lang/eval-okay-xml.exp.xml
@@ -12,12 +12,16 @@
     </attr>
     <attr name="f">
       <function>
-        <arg name="z">
-        </arg>
-        <arg name="x">
-        </arg>
-        <arg name="y">
-        </arg>
+        <attrspat>
+          <attr name="z" />
+          <attr name="x" />
+          <attr name="y" />
+        </attrspat>
+      </function>
+    </attr>
+    <attr name="id">
+      <function>
+        <varpat name="x" />
       </function>
     </attr>
     <attr name="x">
diff --git a/tests/lang/eval-okay-xml.nix b/tests/lang/eval-okay-xml.nix
index 8151337b98..75420316df 100644
--- a/tests/lang/eval-okay-xml.nix
+++ b/tests/lang/eval-okay-xml.nix
@@ -10,4 +10,6 @@ rec {
 
   f = {z, x, y}: if y then x else z;
 
-}
\ No newline at end of file
+  id = x: x;
+
+}
diff --git a/tests/lang/parse-okay-1.exp b/tests/lang/parse-okay-1.exp
index b8b08d95e1..112f5e1f6f 100644
--- a/tests/lang/parse-okay-1.exp
+++ b/tests/lang/parse-okay-1.exp
@@ -1 +1 @@
-Function([Formal("x",NoDefaultValue),Formal("y",NoDefaultValue),Formal("z",NoDefaultValue)],OpPlus(OpPlus(Var("x"),Var("y")),Var("z")),NoPos)
+Function(AttrsPat([Formal("x",NoDefaultValue),Formal("y",NoDefaultValue),Formal("z",NoDefaultValue)]),OpPlus(OpPlus(Var("x"),Var("y")),Var("z")),NoPos)
diff --git a/tests/lang/parse-okay-regression-20041027.exp b/tests/lang/parse-okay-regression-20041027.exp
index bc508d436c..214ff99e13 100644
--- a/tests/lang/parse-okay-regression-20041027.exp
+++ b/tests/lang/parse-okay-regression-20041027.exp
@@ -1 +1 @@
-Function([Formal("stdenv",NoDefaultValue),Formal("fetchurl",NoDefaultValue)],Call(Select(Var("stdenv"),"mkDerivation"),Attrs([Bind("name",Str("libXi-6.0.1",[]),NoPos),Bind("src",Call(Var("fetchurl"),Attrs([Bind("md5",Str("7e935a42428d63a387b3c048be0f2756",[]),NoPos),Bind("url",Str("http://freedesktop.org/~xlibs/release/libXi-6.0.1.tar.bz2",[]),NoPos)])),NoPos)])),NoPos)
+Function(AttrsPat([Formal("stdenv",NoDefaultValue),Formal("fetchurl",NoDefaultValue)]),Call(Select(Var("stdenv"),"mkDerivation"),Attrs([Bind("name",Str("libXi-6.0.1",[]),NoPos),Bind("src",Call(Var("fetchurl"),Attrs([Bind("md5",Str("7e935a42428d63a387b3c048be0f2756",[]),NoPos),Bind("url",Str("http://freedesktop.org/~xlibs/release/libXi-6.0.1.tar.bz2",[]),NoPos)])),NoPos)])),NoPos)
diff --git a/tests/lang/parse-okay-subversion.exp b/tests/lang/parse-okay-subversion.exp
index b51a406b14..75b7794311 100644
--- a/tests/lang/parse-okay-subversion.exp
+++ b/tests/lang/parse-okay-subversion.exp
@@ -1 +1 @@
-Function([Formal("localServer",DefaultValue(Var("false"))),Formal("httpServer",DefaultValue(Var("false"))),Formal("sslSupport",DefaultValue(Var("false"))),Formal("pythonBindings",DefaultValue(Var("false"))),Formal("javaSwigBindings",DefaultValue(Var("false"))),Formal("javahlBindings",DefaultValue(Var("false"))),Formal("stdenv",NoDefaultValue),Formal("fetchurl",NoDefaultValue),Formal("openssl",DefaultValue(Var("null"))),Formal("httpd",DefaultValue(Var("null"))),Formal("db4",DefaultValue(Var("null"))),Formal("expat",NoDefaultValue),Formal("swig",DefaultValue(Var("null"))),Formal("j2sdk",DefaultValue(Var("null")))],Assert(OpNEq(Var("expat"),Var("null")),Assert(OpImpl(Var("localServer"),OpNEq(Var("db4"),Var("null"))),Assert(OpImpl(Var("httpServer"),OpAnd(OpNEq(Var("httpd"),Var("null")),OpEq(Select(Var("httpd"),"expat"),Var("expat")))),Assert(OpImpl(Var("sslSupport"),OpAnd(OpNEq(Var("openssl"),Var("null")),OpImpl(Var("httpServer"),OpEq(Select(Var("httpd"),"openssl"),Var("openssl"))))),Assert(OpImpl(Var("pythonBindings"),OpAnd(OpNEq(Var("swig"),Var("null")),Select(Var("swig"),"pythonSupport"))),Assert(OpImpl(Var("javaSwigBindings"),OpAnd(OpNEq(Var("swig"),Var("null")),Select(Var("swig"),"javaSupport"))),Assert(OpImpl(Var("javahlBindings"),OpNEq(Var("j2sdk"),Var("null"))),Call(Select(Var("stdenv"),"mkDerivation"),Attrs([Bind("builder",Path("/foo/bar"),NoPos),Bind("db4",If(Var("localServer"),Var("db4"),Var("null")),NoPos),Bind("expat",Var("expat"),NoPos),Bind("httpServer",Var("httpServer"),NoPos),Bind("httpd",If(Var("httpServer"),Var("httpd"),Var("null")),NoPos),Bind("j2sdk",If(Var("javaSwigBindings"),Select(Var("swig"),"j2sdk"),If(Var("javahlBindings"),Var("j2sdk"),Var("null"))),NoPos),Bind("javaSwigBindings",Var("javaSwigBindings"),NoPos),Bind("javahlBindings",Var("javahlBindings"),NoPos),Bind("localServer",Var("localServer"),NoPos),Bind("name",Str("subversion-1.1.1",[]),NoPos),Bind("openssl",If(Var("sslSupport"),Var("openssl"),Var("null")),NoPos),Bind("patches",If(Var("javahlBindings"),List([Path("/javahl.patch")]),List([])),NoPos),Bind("python",If(Var("pythonBindings"),Select(Var("swig"),"python"),Var("null")),NoPos),Bind("pythonBindings",Var("pythonBindings"),NoPos),Bind("src",Call(Var("fetchurl"),Attrs([Bind("md5",Str("a180c3fe91680389c210c99def54d9e0",[]),NoPos),Bind("url",Str("http://subversion.tigris.org/tarballs/subversion-1.1.1.tar.bz2",[]),NoPos)])),NoPos),Bind("sslSupport",Var("sslSupport"),NoPos),Bind("swig",If(OpOr(Var("pythonBindings"),Var("javaSwigBindings")),Var("swig"),Var("null")),NoPos)])),NoPos),NoPos),NoPos),NoPos),NoPos),NoPos),NoPos),NoPos)
+Function(AttrsPat([Formal("localServer",DefaultValue(Var("false"))),Formal("httpServer",DefaultValue(Var("false"))),Formal("sslSupport",DefaultValue(Var("false"))),Formal("pythonBindings",DefaultValue(Var("false"))),Formal("javaSwigBindings",DefaultValue(Var("false"))),Formal("javahlBindings",DefaultValue(Var("false"))),Formal("stdenv",NoDefaultValue),Formal("fetchurl",NoDefaultValue),Formal("openssl",DefaultValue(Var("null"))),Formal("httpd",DefaultValue(Var("null"))),Formal("db4",DefaultValue(Var("null"))),Formal("expat",NoDefaultValue),Formal("swig",DefaultValue(Var("null"))),Formal("j2sdk",DefaultValue(Var("null")))]),Assert(OpNEq(Var("expat"),Var("null")),Assert(OpImpl(Var("localServer"),OpNEq(Var("db4"),Var("null"))),Assert(OpImpl(Var("httpServer"),OpAnd(OpNEq(Var("httpd"),Var("null")),OpEq(Select(Var("httpd"),"expat"),Var("expat")))),Assert(OpImpl(Var("sslSupport"),OpAnd(OpNEq(Var("openssl"),Var("null")),OpImpl(Var("httpServer"),OpEq(Select(Var("httpd"),"openssl"),Var("openssl"))))),Assert(OpImpl(Var("pythonBindings"),OpAnd(OpNEq(Var("swig"),Var("null")),Select(Var("swig"),"pythonSupport"))),Assert(OpImpl(Var("javaSwigBindings"),OpAnd(OpNEq(Var("swig"),Var("null")),Select(Var("swig"),"javaSupport"))),Assert(OpImpl(Var("javahlBindings"),OpNEq(Var("j2sdk"),Var("null"))),Call(Select(Var("stdenv"),"mkDerivation"),Attrs([Bind("builder",Path("/foo/bar"),NoPos),Bind("db4",If(Var("localServer"),Var("db4"),Var("null")),NoPos),Bind("expat",Var("expat"),NoPos),Bind("httpServer",Var("httpServer"),NoPos),Bind("httpd",If(Var("httpServer"),Var("httpd"),Var("null")),NoPos),Bind("j2sdk",If(Var("javaSwigBindings"),Select(Var("swig"),"j2sdk"),If(Var("javahlBindings"),Var("j2sdk"),Var("null"))),NoPos),Bind("javaSwigBindings",Var("javaSwigBindings"),NoPos),Bind("javahlBindings",Var("javahlBindings"),NoPos),Bind("localServer",Var("localServer"),NoPos),Bind("name",Str("subversion-1.1.1",[]),NoPos),Bind("openssl",If(Var("sslSupport"),Var("openssl"),Var("null")),NoPos),Bind("patches",If(Var("javahlBindings"),List([Path("/javahl.patch")]),List([])),NoPos),Bind("python",If(Var("pythonBindings"),Select(Var("swig"),"python"),Var("null")),NoPos),Bind("pythonBindings",Var("pythonBindings"),NoPos),Bind("src",Call(Var("fetchurl"),Attrs([Bind("md5",Str("a180c3fe91680389c210c99def54d9e0",[]),NoPos),Bind("url",Str("http://subversion.tigris.org/tarballs/subversion-1.1.1.tar.bz2",[]),NoPos)])),NoPos),Bind("sslSupport",Var("sslSupport"),NoPos),Bind("swig",If(OpOr(Var("pythonBindings"),Var("javaSwigBindings")),Var("swig"),Var("null")),NoPos)])),NoPos),NoPos),NoPos),NoPos),NoPos),NoPos),NoPos),NoPos)
generated by cgit-pink 1.4.1 (git 2.44.2) at 2024-07-07T23ยท19+0000