// Emit code that saves the result of an expression to an array element.
void GenerateSaveToArray(CodeGenerator cg)
{
Symbol sym = Identifier.Symbol;
Debug.Assert(sym.IsArray);
if (Identifier.IsArrayBase) {
if (sym.IsParameter) {
GenerateStoreArgument(cg, sym);
} else {
cg.GenerateExpression(SymType.NONE, ValueExpression);
cg.Emitter.StoreLocal(sym.Index);
}
return;
}
cg.GenerateLoadArrayAddress(Identifier);
if (Identifier.HasSubstring) {
cg.Emitter.LoadArrayElement(sym);
cg.GenerateExpression(SymType.FIXEDCHAR, ValueExpression);
GenerateSaveSubstring(cg, SymType.FIXEDCHAR);
return;
}
if (sym.Type == SymType.FIXEDCHAR) {
cg.Emitter.LoadArrayElement(sym);
cg.GenerateExpression(SymType.NONE, ValueExpression);
cg.Emitter.Call(cg.GetMethodForType(typeof(JComLib.FixedString), "Set", new[] { Symbol.SymTypeToSystemType(ValueExpression.Type) }));
return;
}
cg.GenerateExpression(sym.Type, ValueExpression);
cg.Emitter.StoreArrayElement(sym);
}
// Emit the code that loads part of an entire array by making a copy of
// the array to the destination array dimensions and copying from the
// given offset.
void GenerateLoadSubArray(CodeGenerator cg, IdentifierParseNode identNode, Symbol symParam, Temporaries locals)
{
if (!identNode.HasIndexes) {
cg.GenerateLoadArray(identNode, false);
return;
}
LocalDescriptor index = locals.New(symParam.SystemType);
cg.GenerateLoadArrayAddress(identNode);
cg.Emitter.CreateSimpleArray(symParam.ArraySize, Symbol.SymTypeToSystemType(symParam.Type));
cg.Emitter.Dup();
cg.Emitter.StoreLocal(index);
cg.Emitter.LoadInteger(0);
cg.Emitter.LoadInteger(symParam.ArraySize);
cg.Emitter.Call(typeof(Array).GetMethod("Copy", new [] { typeof(Array), typeof(int), typeof(Array), typeof(int), typeof(int) }));
cg.Emitter.LoadLocal(index);
}
