public override void WriteToWithCast(CodeWriter writer, CppTypeName cast)
{
if (cast == null || cast == EocDataTypes.Auto || cast == EocDataTypes.Any)
{
cast = GetResultType();
}
var resultType = cast;
CppTypeName elemType;
if (cast == EocDataTypes.Bin)
{
elemType = EocDataTypes.Byte;
}
else if (cast.Name == "e::system::array")
{
elemType = resultType.TypeParam[0];
}
else
{
throw new Exception("无效数组类型");
}
writer.Write(resultType.ToString());
writer.Write(" {");
for (int i = 0; i < Item.Count; i++)
{
var item = Item[i];
if (i != 0)
{
writer.Write(", ");
}
item.WriteToWithCast(writer, elemType);
}
writer.Write("}");
}
public override bool TryGetConstValueWithCast(CppTypeName cast, out object value)
{
var resultType = cast;
CppTypeName elemType;
if (cast == EocDataTypes.Bin)
{
elemType = EocDataTypes.Byte;
}
else if (cast.Name == "e::system::array")
{
elemType = resultType.TypeParam[0];
}
else
{
value = null;
return(false);
}
var values = new object[Item.Count];
for (int i = 0; i < Item.Count; i++)
{
if (!Item[i].TryGetConstValueWithCast(elemType, out values[i]))
{
value = null;
return(false);
}
}
value = values;
return(true);
}
public virtual bool TryGetConstValueWithCast(CppTypeName cast, out object value)
{
if (!TryGetConstValue(out value))
{
return(false);
}
var type = ProjectConverter.GetConstValueType(value);
if (type == cast)
{
return(true);
}
if (P.IsArithmeticType(type) && P.IsArithmeticType(cast))
{
var NumberConverter = new Dictionary <CppTypeName, Func <object, object> > {
{ ProjectConverter.CppTypeName_Byte, x => Convert.ToByte(x) },
{ ProjectConverter.CppTypeName_Short, x => Convert.ToInt16(x) },
{ ProjectConverter.CppTypeName_Int, x => Convert.ToInt32(x) },
{ ProjectConverter.CppTypeName_Long, x => Convert.ToInt64(x) },
{ ProjectConverter.CppTypeName_Float, x => Convert.ToSingle(x) },
{ ProjectConverter.CppTypeName_Double, x => Convert.ToDouble(x) },
};
if (NumberConverter.TryGetValue(cast, out var converter))
{
value = converter(value);
return(true);
}
}
return(false);
}
public virtual bool TryGetConstValueWithCast(CppTypeName cast, out object value)
{
if (!TryGetConstValue(out value))
{
return(false);
}
var type = ProjectConverter.GetConstValueType(value);
if (type == cast)
{
return(true); //FIXME 类型自动转换
}
return(false);
}
public virtual void WriteToWithCast(CodeWriter writer, CppTypeName cast)
{
var exprType = GetResultType();
if (cast == null || cast == ProjectConverter.CppTypeName_SkipCheck || cast == exprType)
{
WriteTo(writer);
return;
}
writer.Write("e::system::cast<");
writer.Write(cast.ToString());
writer.Write(">(");
WriteTo(writer);
writer.Write(")");
}
public virtual void WriteToWithCast(CodeWriter writer, CppTypeName cast)
{
var exprType = GetResultType();
if (cast == null || cast == EocDataTypes.Auto || cast == exprType)
{
WriteTo(writer);
return;
}
writer.Write("e::system::cast<");
writer.Write(cast.ToString());
writer.Write(">(");
WriteTo(writer);
writer.Write(")");
}
public override void WriteTo(CodeWriter writer)
{
if (Mask)
{
writer.AddCommentLine(CommentOnStart);
using (writer.NewBlock())
{
Block.WriteTo(writer);
}
writer.AddCommentLine(CommentOnEnd);
return;
}
var hasVar = Var != null;
var varPrefix = C.AllocTempVar();
var varForCount = $"{varPrefix}_count";
var varForIndex = $"{varPrefix}_index";
var typeName = $"decltype({varForCount})";
CppTypeName expectedType = null;
writer.AddCommentLine(CommentOnStart);
writer.NewLine();
if (hasVar)
{
expectedType = Var.GetResultType();
typeName = expectedType.ToString();
writer.Write(typeName);
writer.Write(" ");
}
else
{
writer.Write("auto ");
}
writer.Write(varForCount);
writer.Write(" = ");
Count.WriteToWithCast(writer, expectedType);
writer.Write(";");
writer.NewLine();
writer.Write(typeName);
writer.Write(" ");
writer.Write(varForIndex);
writer.Write(" = 1");
writer.Write(";");
writer.NewLine();
writer.Write("for (");
if (hasVar)
{
C.WriteLetExpression(writer, Var, () =>
{
writer.Write(varForIndex);
});
}
writer.Write("; ");
writer.Write(varForIndex);
writer.Write(" <= ");
writer.Write(varForCount);
writer.Write("; ");
if (hasVar)
{
C.WriteLetExpression(writer, Var, () =>
{
writer.Write("++");
writer.Write(varForIndex);
});
}
else
{
writer.Write(varForIndex);
writer.Write("++");
}
writer.Write(")");
using (writer.NewBlock())
{
Block.WriteTo(writer);
}
writer.AddCommentLine(CommentOnEnd);
}
