public override void Begin(ref Expression e, ExpressionUsage u)
{
switch (e.ExpressionType)
{
case ExpressionType.GetMetaProperty:
{
var s = e as GetMetaProperty;
_fc.AddReqStatement(new ReqProperty(s.Source, s.Name, s.ReturnType, s.Offset, null));
break;
}
case ExpressionType.GetMetaObject:
{
var s = e as GetMetaObject;
_fc.AddReqStatement(new ReqObject(s.Source, s.ReturnType));
break;
}
}
}
void CompileMetaPropertyDefinitions(AstMetaProperty ast, MetaProperty mp)
{
var defs = new MetaDefinition[ast.Definitions.Count];
for (int i = 0; i < defs.Length; i++)
{
var fc = new FunctionCompiler(_compiler, mp);
foreach (var req in ast.Definitions[i].Requirements)
{
DataType dt = null;
if (req.Type != null)
{
dt = _resolver.GetType(mp.Parent, req.Type);
}
fc.AddReqStatement(new ReqProperty(req.Source, req.Name.Symbol, dt, req.Offset, req.Tag));
}
var fixedInit = ast.Definitions[i].Value as AstFixedArrayInitializer;
Statement s;
if (fixedInit != null)
{
s = fc.CompileFixedArrayDeclaration(mp.Source, mp.ReturnType, mp.Name, fixedInit);
}
else
{
s = fc.CompileStatement(ast.Definitions[i].Value);
if (s is Expression)
{
s = fc.CompileImplicitCast(mp.Source, mp.ReturnType, s as Expression);
}
}
// Find implicit req statements
if (s is Expression)
{
var e = s as Expression;
new ReqStatementFinder(fc).VisitNullable(ref e);
}
else
{
new ReqStatementFinder(fc).VisitNullable(ref s);
}
defs[i] = new MetaDefinition(s, ast.Definitions[i].Tags, fc.ReqStatements);
}
mp.SetDefinitions(defs);
}