private static FieldDeclarationSyntax EmitStructFieldFixedBuffer(
CSharpStructField field)
{
string typeName;
if (field.IsWrapped)
{
typeName = field.Type.AlignOf switch
{
1 => "byte",
2 => "ushort",
4 => "uint",
8 => "ulong",
_ => throw new InvalidOperationException()
};
}
else
{
typeName = field.Type.Name ?? string.Empty;
}
var code = $@"
[FieldOffset({field.Offset})] // size = {field.Type.SizeOf}, padding = {field.Padding}
public fixed {typeName} {field.BackingFieldName}[{field.Type.SizeOf}/{field.Type.AlignOf}]; // {field.Type.OriginalName}
".Trim();
return(ParseMemberCode <FieldDeclarationSyntax>(code));
}
private static FieldDeclarationSyntax StructField(CSharpStructField field)
{
var code = $@"
[FieldOffset({field.Offset})] // size = {field.Type.SizeOf}, padding = {field.Padding}
public {field.Type.Name} {field.Name};
".Trim();
var member = ParseMemberCode <FieldDeclarationSyntax>(code);
return(member);
}
private PropertyDeclarationSyntax StructFieldFixedBufferProperty(
string structName,
CSharpStructField field)
{
string code;
if (field.Type.Name == "CString")
{
code = $@"
public string {field.Name}
{{
get
{{
fixed ({structName}*@this = &this)
{{
var pointer = &@this->{field.BackingFieldName}[0];
var cString = new CString(pointer);
return Runtime.CStrings.String(cString);
}}
}}
}}
".Trim();
}
else if (field.Type.Name == "CStringWide")
{
code = $@"
public string {field.Name}
{{
get
{{
fixed ({structName}*@this = &this)
{{
var pointer = &@this->{field.BackingFieldName}[0];
var cString = new CStringWide(pointer);
return Runtime.CStrings.StringWide(cString);
}}
}}
}}
".Trim();
}
else
{
var fieldTypeName = field.Type.Name ?? string.Empty;
var elementType = fieldTypeName[..^ 1];
