public override void GenCode(ICodeGenerator cg)
{
var gen = cg.GetGenerator;
ArrayType arrayType = (LValue.ReturnType.PrimitiveType as ArrayType);
LValue.GenCode(cg);
IndexInstruction.GenCode(cg);
gen.Emit(OpCodes.Ldelem, arrayType.BaseType.ILType);
}
public void AssignValue(ICodeGenerator cg)
{
var gen = cg.GetGenerator;
ArrayType arrayType = (LValue.ReturnType.PrimitiveType as ArrayType);
LocalBuilder aux = gen.DeclareLocal(arrayType.BaseType.ILType);
gen.Emit(OpCodes.Stloc, aux);
LValue.GenCode(cg);
IndexInstruction.GenCode(cg);
gen.Emit(OpCodes.Ldloc, aux);
gen.Emit(OpCodes.Stelem, arrayType.BaseType.ILType);
}
public override bool CheckSemantic(List <Error> errors, SymbolTable symbolTable)
{
if (base.CheckSemantic(errors, symbolTable) & IndexInstruction.CheckSemantic(errors, symbolTable))
{
TypeExpression resultType = LValue.ReturnType.SubscriptAt(IndexInstruction.ReturnType);
if (resultType is ErrorType)
{
errors.Add(new Error((resultType as ErrorType).Message, Line, CharPositionInLine));
}
else
{
ReturnType = resultType;
_isLValue = (LValue is IAssignable);
Scope = symbolTable.TopScope.Clone();
return(true);
}
}
ReturnType = TypeExpression.ErrorType;
return(false);
}
