|
public ImplicitConversionRequired ( |
||
| ec | ||
| type | System.TypeSpec | |
| 리턴 | ||
public override Constant ConvertInitializer(ResolveContext rc, Constant expr)
{
if (expr is EnumConstant)
{
expr = ((EnumConstant)expr).Child;
}
var underlying = ((Enum)Parent).UnderlyingType;
if (expr != null)
{
expr = expr.ImplicitConversionRequired(rc, underlying, Location);
if (expr != null && !IsValidEnumType(expr.Type))
{
Enum.Error_1008(Location, Report);
expr = null;
}
}
if (expr == null)
{
expr = New.Constantify(underlying, Location);
}
return(new EnumConstant(expr, MemberType));
}
protected override Constant DoResolveValue(EmitContext ec)
{
if (ValueExpr != null)
{
Constant c = ValueExpr.ResolveAsConstant(ec, this);
if (c == null)
{
return(null);
}
if (c is EnumConstant)
{
c = ((EnumConstant)c).Child;
}
c = c.ImplicitConversionRequired(ec, ParentEnum.UnderlyingType, Location);
if (c == null)
{
return(null);
}
if (!IsValidEnumType(c.Type))
{
Enum.Error_1008(Location);
return(null);
}
return(new EnumConstant(c, MemberType));
}
if (prev_member == null)
{
return(new EnumConstant(
New.Constantify(ParentEnum.UnderlyingType), MemberType));
}
if (!prev_member.ResolveValue())
{
return(null);
}
try {
return((EnumConstant)prev_member.value.Increment());
} catch (OverflowException) {
Report.Error(543, Location, "The enumerator value `{0}' is too " +
"large to fit in its type `{1}'", GetSignatureForError(),
TypeManager.CSharpName(ParentEnum.UnderlyingType));
return(null);
}
}
public override Constant ConvertInitializer (ResolveContext rc, Constant expr)
{
if (expr is EnumConstant)
expr = ((EnumConstant) expr).Child;
var underlying = ((Enum) Parent).UnderlyingType;
if (expr != null) {
expr = expr.ImplicitConversionRequired (rc, underlying, Location);
if (expr != null && !IsValidEnumType (expr.Type)) {
Enum.Error_1008 (Location, Report);
expr = null;
}
}
if (expr == null)
expr = New.Constantify (underlying, Location);
return new EnumConstant (expr, MemberType);
}
public override Constant ConvertInitializer (ResolveContext rc, Constant expr)
{
return expr.ImplicitConversionRequired (rc, rc.BuiltinTypes.Int, Location);
}
public override Constant ConvertInitializer(ResolveContext rc, Constant expr)
{
return expr.ImplicitConversionRequired (rc, TypeManager.int32_type, Location);
}
public override Constant ConvertInitializer(ResolveContext rc, Constant expr)
{
return(expr.ImplicitConversionRequired(rc, rc.BuiltinTypes.Int, Location));
}
public override Constant ConvertInitializer(ResolveContext rc, Constant expr)
{
return(expr.ImplicitConversionRequired(rc, TypeManager.int32_type, Location));
}