public MidExp MethodApp(
SourceRange range,
MidMethodDecl method,
IEnumerable <MidVal> args)
{
return(_methodApps.Get(method).GetList(args).Cache(
() => new MidMethodApp(range, method, args)));
}
public MidMethodApp(
SourceRange range,
MidMethodDecl decl,
IEnumerable <MidVal> args)
: base(range, decl.ResultType)
{
_decl = decl;
_args = args.ToArray();
}
public MidMethodRef(
MidMethodDecl decl,
MidMemberTerm memberTerm,
MidExpFactory exps)
{
_decl = decl;
_memberTerm = memberTerm;
_exps = exps;
}
public void SimplifyMethod(MidMethodDecl method)
{
method.Body = SimplifyExp(method.Body, new SimplifyEnv(null));
}
public string GetMethod(MidMethodDecl method)
{
string result;
if (_methods.TryGetValue(method, out result))
return result;
var name = _shared.GenerateName(method.Name.ToString());
result = name;
_methods[method] = result;
Span span = new Span();
span.WriteLine("void {0}(",
name);
bool firstParam = true;
var resultType = EmitType(method.ResultType);
var resultVar = DeclareOutParam(
"__result",
resultType,
span,
ref firstParam);
foreach (var p in method.Parameters)
{
var pName = _shared.GenerateName(p.Name.ToString());
var pType = EmitType(p.Type);
var pVal = DeclareParam(
pName,
pType,
span,
ref firstParam);
_varVals[p] = pVal;
}
span.WriteLine(")");
span.WriteLine("{");
var bodySpan = span.IndentSpan();
// Scan for a label expression
// along the 'spine' of the method
var bodyExp = method.Body;
while (bodyExp is MidLetExp)
{
bodyExp = ((MidLetExp)bodyExp).Body;
}
if (bodyExp is MidLabelExp)
{
var labelExp = (MidLabelExp)bodyExp;
// a 'break' to this label should be
// emitted as a 'return':
_labels[labelExp.Label] = new ReturnLabel(this, resultVar);
EmitExp(method.Body, bodySpan);
}
else
{
// Otherwise, the body is an expression,
// and we should return it if it is non-null...
var resultExp = EmitExp(method.Body, bodySpan);
if (method.ResultType != null
&& !(method.ResultType is MidVoidType))
{
Assign(resultVar, resultExp, span);
}
}
span.WriteLine("}");
_subroutineHeaderSpan.Add(span);
return result;
}
public void AddMethod(MidMethodDecl method)
{
_methods.Add(method);
}
public void SimplifyMethod(MidMethodDecl method)
{
method.Body = SimplifyExp(method.Body, new SimplifyEnv(null));
}
public void AddMethod(MidMethodDecl method)
{
_methods.Add(method);
}
private MidMemberDecl EmitMemberDeclImpl(
IBuilder parent,
IResMethodDecl resMethod,
MidEmitEnv env)
{
var builtinTags = (from tag in resMethod.Line.Tags
let builtinTag = tag as ResBuiltinTag
where builtinTag != null
select builtinTag).ToArray();
if (resMethod.Body != null)
{
// Don't use builtin version if there's an inline impl (probably
// because its an override...)
builtinTags = new ResBuiltinTag[] { };
}
IMidMethodDecl midMethod = null;
if (builtinTags.Length != 0)
{
midMethod = new MidBuiltinMethodDecl(
parent,
resMethod.Name,
builtinTags);
}
else
{
midMethod = new MidMethodDecl(
parent,
resMethod.Name,
_exps);
}
midMethod.AddBuildAction(() =>
{
var resultType = EmitTypeExp(resMethod.ResultType, env);
midMethod.ResultType = resultType;
var midParams = (from p in resMethod.Parameters
select new MidVar(p.Name, EmitTypeExp(p.Type, env))).ToArray();
midMethod.Parameters = midParams;
if (resMethod.Body != null && !IsCrossFrequencyMethod(resMethod))
{
var paramEnv = new MidGlobalEmitEnv(env, env.Context);
foreach (var pair in midParams.Zip(resMethod.Parameters, Tuple.Create))
{
var midParam = pair.Item1;
var resParam = pair.Item2;
paramEnv.Insert(resParam, (SourceRange r) => new MidVarRef(r, midParam));
}
((MidMethodDecl)midMethod).Body = EmitLocalExp(resMethod.Body, paramEnv);
}
});
midMethod.DoneBuilding();
if ((parent is MidFacetDecl) && (midMethod is MidMethodDecl))
{
((MidFacetDecl)parent).AddMethod((MidMethodDecl)midMethod);
}
return((MidMemberDecl)midMethod);
}
public MidMethodRef(
MidMethodDecl decl,
MidMemberTerm memberTerm,
MidExpFactory exps )
{
_decl = decl;
_memberTerm = memberTerm;
_exps = exps;
}
