forked from lix-project/lix
* Don't convert variable names to strings.
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f450384ded
commit
3c9f8fc9b6
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@ -12,7 +12,9 @@ using namespace nix;
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struct Env;
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struct Value;
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typedef std::map<string, Value> Bindings;
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typedef ATerm Sym;
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typedef std::map<Sym, Value> Bindings;
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struct Env
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@ -96,7 +98,7 @@ void forceValue(Value & v)
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}
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Value * lookupVar(Env * env, const string & name)
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Value * lookupVar(Env * env, Sym name)
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{
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for ( ; env; env = env->up) {
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Bindings::iterator i = env->bindings.find(name);
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@ -121,9 +123,9 @@ static void eval(Env * env, Expr e, Value & v)
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{
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printMsg(lvlError, format("eval: %1%") % e);
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ATerm name;
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Sym name;
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if (matchVar(e, name)) {
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Value * v2 = lookupVar(env, aterm2String(name));
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Value * v2 = lookupVar(env, name);
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forceValue(*v2);
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v = *v2;
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return;
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@ -143,7 +145,7 @@ static void eval(Env * env, Expr e, Value & v)
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ATerm e2, pos;
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for (ATermIterator i(es); i; ++i) {
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if (!matchBind(*i, name, e2, pos)) abort(); /* can't happen */
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Value & v2 = (*v.attrs)[aterm2String(name)];
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Value & v2 = (*v.attrs)[name];
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nrValues++;
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v2.type = tThunk;
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v2.thunk.env = env;
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@ -162,7 +164,7 @@ static void eval(Env * env, Expr e, Value & v)
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ATerm name, e2, pos;
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for (ATermIterator i(rbnds); i; ++i) {
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if (!matchBind(*i, name, e2, pos)) abort(); /* can't happen */
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Value & v2 = env2->bindings[aterm2String(name)];
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Value & v2 = env2->bindings[name];
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nrValues++;
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v2.type = tThunk;
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v2.thunk.env = env2;
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@ -176,7 +178,7 @@ static void eval(Env * env, Expr e, Value & v)
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if (matchSelect(e, e2, name)) {
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eval(env, e2, v);
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if (v.type != tAttrs) throw TypeError("expected attribute set");
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Bindings::iterator i = v.attrs->find(aterm2String(name));
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Bindings::iterator i = v.attrs->find(name);
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if (i == v.attrs->end()) throw TypeError("attribute not found");
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forceValue(i->second);
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v = i->second;
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@ -203,7 +205,7 @@ static void eval(Env * env, Expr e, Value & v)
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ATermList formals; ATerm ellipsis;
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if (matchVarPat(v.lambda.pat, name)) {
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Value & vArg = env2->bindings[aterm2String(name)];
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Value & vArg = env2->bindings[name];
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vArg.type = tThunk;
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vArg.thunk.env = env;
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vArg.thunk.expr = arg;
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@ -216,7 +218,7 @@ static void eval(Env * env, Expr e, Value & v)
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if (name == sNoAlias)
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vArg = &vArg_;
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else
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vArg = &env2->bindings[aterm2String(name)];
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vArg = &env2->bindings[name];
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eval(env, arg, *vArg);
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if (vArg->type != tAttrs) throw TypeError("expected attribute set");
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@ -226,13 +228,13 @@ static void eval(Env * env, Expr e, Value & v)
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argument has a default, use the default. */
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unsigned int attrsUsed = 0;
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for (ATermIterator i(formals); i; ++i) {
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Expr name, def;
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Expr def; Sym name;
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DefaultValue def2;
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if (!matchFormal(*i, name, def2)) abort(); /* can't happen */
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Bindings::iterator j = vArg->attrs->find(aterm2String(name));
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Bindings::iterator j = vArg->attrs->find(name);
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Value & v = env2->bindings[aterm2String(name)];
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Value & v = env2->bindings[name];
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if (j == vArg->attrs->end()) {
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if (!matchDefaultValue(def2, def)) def = 0;
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@ -296,6 +298,7 @@ void run(Strings args)
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doTest("({x, y, ...}: x) { x = 1; y = 2; z = 3; }");
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doTest("({x, y, ...}@args: args.z) { x = 1; y = 2; z = 3; }");
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//doTest("({x ? y, y ? x}: y) { }");
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doTest("let x = 1; in x");
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printMsg(lvlError, format("alloced %1% values") % nrValues);
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printMsg(lvlError, format("alloced %1% environments") % nrEnvs);
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