public static CompilationUnitSyntax Generate(Type t)
{
var cu = CompilationUnit();
cu = cu.AddUsings(
UsingDirective(IdentifierName("System")),
UsingDirective(QualifiedName(QualifiedName(IdentifierName("System"), IdentifierName("IO")), IdentifierName("Pipelines"))),
UsingDirective(QualifiedName(QualifiedName(IdentifierName("System"), IdentifierName("Text")), IdentifierName("Formatting"))),
UsingDirective(QualifiedName(IdentifierName("System"), IdentifierName("Text"))));
var c = ClassDeclaration("Serializer").WithModifiers(TokenList(Token(SyntaxKind.PublicKeyword), Token(SyntaxKind.StaticKeyword), Token(SyntaxKind.PartialKeyword)));
var b = Block();
b = b.AddStatements(EncodingLocal("Utf8"));
b = WriteSerializer(t, b, IdentifierName("t"));
b = BlockHelpers.MergeLiterals(b, BlockHelpers.GetLiteralString, WriteHelpers.AppendString(""));
var sc = new StringCollector();
b = BlockHelpers.ConvertToSlices(b, sc);
c = c.AddMembers(SpanHelpers.SpanField("span", sc.GetRawString()));
foreach (var s in sc.strings)
{
var i = sc.GetOffset(s);
c = c.AddMembers(SpanHelpers.SpanField("slice" + i.Item1, SpanHelpers.SpanSlice("span", i.Item1, i.Item2)));
}
c = c.AddMembers(SerializerMethod(b, t));
cu = cu.AddMembers(c);
return(cu);
}
private static BlockSyntax WriteSerializer(Type t, BlockSyntax b, ExpressionSyntax member)
{
b = b.AddStatements(WriteHelpers.AppendString("{"));
var last = t.GetTypeInfo().GetProperties().Last();
foreach (var prop in t.GetTypeInfo().GetProperties())
{
b = b.AddStatements(WriteHelpers.AppendString($"\"{prop.Name}\" : "));
if (prop.PropertyType == typeof(string))
{
var sb = Block();
sb = sb.AddStatements(WriteHelpers.AppendString("'"));
sb = sb.AddStatements(WriteHelpers.AppendString(MemberAccessExpression(SyntaxKind.SimpleMemberAccessExpression, member, IdentifierName(prop.Name))));
sb = sb.AddStatements(WriteHelpers.AppendString("'"));
b = b.AddStatements(IfStatement(BinaryExpression(
SyntaxKind.NotEqualsExpression,
MemberAccessExpression(SyntaxKind.SimpleMemberAccessExpression, member, IdentifierName(prop.Name)),
LiteralExpression(SyntaxKind.NullLiteralExpression)), sb));
}
else if (prop.PropertyType == typeof(DateTime) || prop.PropertyType == typeof(Guid))
{
b = b.AddStatements(WriteHelpers.AppendString("'"));
b = b.AddStatements(WriteHelpers.AppendToString(MemberAccessExpression(SyntaxKind.SimpleMemberAccessExpression, member, IdentifierName(prop.Name))));
b = b.AddStatements(WriteHelpers.AppendString("'"));
}
else if (prop.PropertyType == typeof(bool))
{
b = b.AddStatements(WriteHelpers.AppendBool(MemberAccessExpression(SyntaxKind.SimpleMemberAccessExpression, member, IdentifierName(prop.Name))));
}
else if (prop.PropertyType == typeof(int) || prop.PropertyType == typeof(bool) || prop.PropertyType == typeof(float) || prop.PropertyType == typeof(double))
{
b = b.AddStatements(WriteHelpers.AppendString(MemberAccessExpression(SyntaxKind.SimpleMemberAccessExpression, member, IdentifierName(prop.Name))));
}
else
{
if (!prop.PropertyType.GetTypeInfo().IsValueType)
{
b = b.AddStatements(IfStatement(BinaryExpression(
SyntaxKind.NotEqualsExpression,
MemberAccessExpression(SyntaxKind.SimpleMemberAccessExpression, member, IdentifierName(prop.Name)),
LiteralExpression(SyntaxKind.NullLiteralExpression)),
WriteSerializer(prop.PropertyType, Block(), MemberAccessExpression(SyntaxKind.SimpleMemberAccessExpression, member, IdentifierName(prop.Name)))));
}
else
{
b = WriteSerializer(prop.PropertyType, b, MemberAccessExpression(SyntaxKind.SimpleMemberAccessExpression, member, IdentifierName(prop.Name)));
}
}
if (prop != last)
{
b = b.AddStatements(WriteHelpers.AppendString(","));
}
}
b = b.AddStatements(WriteHelpers.AppendString("}"));
return(b);
}
