internal void SetString(string /*!*/ value, StringLiteralEncoding encoding)
{
Assert.NotNull(value);
String = value;
_integer1 = (int)encoding;
_type = TokenValueType.String;
}
private static StringLiteralEncoding CombineEncoding(StringLiteralEncoding encoding, StringLiteral literal)
{
if (encoding == StringLiteralEncoding.UTF8 || literal.IsUTF8)
{
return(StringLiteralEncoding.UTF8);
}
if (encoding == StringLiteralEncoding.Ascii && literal.IsAscii)
{
return(StringLiteralEncoding.Ascii);
}
return(StringLiteralEncoding.Default);
}
private static char OpSuffix(AstGenerator /*!*/ gen, StringLiteralEncoding encoding)
{
if (encoding == StringLiteralEncoding.Ascii)
{
return(RubyOps.SuffixBinary);
}
else if (encoding == StringLiteralEncoding.UTF8 || gen.Encoding == Encoding.UTF8)
{
return(RubyOps.SuffixUTF8);
}
else if (gen.Encoding == BinaryEncoding.Instance)
{
return(RubyOps.SuffixBinary);
}
else
{
return(RubyOps.SuffixEncoded);
}
}
internal void SetString(string/*!*/ value, StringLiteralEncoding encoding) {
Assert.NotNull(value);
String = value;
_integer1 = (int)encoding;
_type = TokenValueType.String;
}
internal void SetString(string/*!*/ value, StringLiteralEncoding encoding) {
Assert.NotNull(value);
String = value;
Integer1 = (int)encoding;
}
//
// Traverses expressions in "parts" and concats all contiguous literal strings.
// Notes:
// - Instead of usign StringBuilder we place the string values that can be concatenated so far in to "literals" list and keep track
// of their total length in "concatLength" and encoding in "concatEncoding".
// If we reach a non-literal expression and we have some literals ready in "literals" array we do the concat and clear the list
// and "concatLength" and "concatEncoding".
// - "result" list contains argument expressions to the CreateMutableString* overloads.
// - "opName" contains the name of the operation. This method appends suffix based on the argument types (see RubyOps.Suffix*).
//
private static void ConcatLiteralsAndTransformRecursive(AstGenerator /*!*/ gen, List <Expression> /*!*/ parts,
List <string> /*!*/ literals, ref int concatLength, ref StringLiteralEncoding concatEncoding, List <MSA.Expression> /*!*/ result,
StringBuilder /*!*/ opName)
{
for (int i = 0; i < parts.Count; i++)
{
Expression part = parts[i];
StringLiteral literal;
StringConstructor ctor;
if ((literal = part as StringLiteral) != null)
{
literals.Add(literal.Value);
concatEncoding = CombineEncoding(concatEncoding, literal);
concatLength += literal.Value.Length;
}
else if ((ctor = part as StringConstructor) != null)
{
ConcatLiteralsAndTransformRecursive(gen, ctor.Parts, literals, ref concatLength, ref concatEncoding, result, opName);
}
else
{
if (literals.Count > 0)
{
result.Add(Ast.Constant(Concat(literals, concatLength)));
opName.Append(OpSuffix(gen, concatEncoding));
concatLength = 0;
concatEncoding = StringLiteralEncoding.Ascii;
literals.Clear();
}
result.Add(
Ast.Dynamic(
ConvertToSAction.Instance,
typeof(MutableString),
gen.CurrentScopeVariable, part.TransformRead(gen)
)
);
opName.Append(RubyOps.SuffixMutable);
}
}
}
internal StringLiteral(string /*!*/ value, StringLiteralEncoding encoding, SourceSpan location)
: base(location)
{
_value = value;
_encoding = encoding;
}
internal StringLiteral(string/*!*/ value, StringLiteralEncoding encoding, SourceSpan location)
: base(location) {
_value = value;
_encoding = encoding;
}
private static char OpSuffix(AstGenerator/*!*/ gen, StringLiteralEncoding encoding) {
if (encoding == StringLiteralEncoding.Ascii) {
return RubyOps.SuffixBinary;
} else if (encoding == StringLiteralEncoding.UTF8 || gen.Encoding == Encoding.UTF8) {
return RubyOps.SuffixUTF8;
} else if (gen.Encoding == BinaryEncoding.Instance) {
return RubyOps.SuffixBinary;
} else {
return RubyOps.SuffixEncoded;
}
}
private static StringLiteralEncoding CombineEncoding(StringLiteralEncoding encoding, StringLiteral literal) {
if (encoding == StringLiteralEncoding.UTF8 || literal.IsUTF8) {
return StringLiteralEncoding.UTF8;
}
if (encoding == StringLiteralEncoding.Ascii && literal.IsAscii) {
return StringLiteralEncoding.Ascii;
}
return StringLiteralEncoding.Default;
}
//
// Traverses expressions in "parts" and concats all contiguous literal strings.
// Notes:
// - Instead of usign StringBuilder we place the string values that can be concatenated so far in to "literals" list and keep track
// of their total length in "concatLength" and encoding in "concatEncoding".
// If we reach a non-literal expression and we have some literals ready in "literals" array we do the concat and clear the list
// and "concatLength" and "concatEncoding".
// - "result" list contains argument expressions to the CreateMutableString* overloads.
// - "opName" contains the name of the operation. This method appends suffix based on the argument types (see RubyOps.Suffix*).
//
private static void ConcatLiteralsAndTransformRecursive(AstGenerator/*!*/ gen, List<Expression>/*!*/ parts,
List<string>/*!*/ literals, ref int concatLength, ref StringLiteralEncoding concatEncoding, List<MSA.Expression>/*!*/ result,
StringBuilder/*!*/ opName) {
for (int i = 0; i < parts.Count; i++) {
Expression part = parts[i];
StringLiteral literal;
StringConstructor ctor;
if ((literal = part as StringLiteral) != null) {
literals.Add(literal.Value);
concatEncoding = CombineEncoding(concatEncoding, literal);
concatLength += literal.Value.Length;
} else if ((ctor = part as StringConstructor) != null) {
ConcatLiteralsAndTransformRecursive(gen, ctor.Parts, literals, ref concatLength, ref concatEncoding, result, opName);
} else {
if (literals.Count > 0) {
result.Add(Ast.Constant(Concat(literals, concatLength)));
opName.Append(OpSuffix(gen, concatEncoding));
concatLength = 0;
concatEncoding = StringLiteralEncoding.Ascii;
literals.Clear();
}
result.Add(
Ast.Dynamic(
ConvertToSAction.Instance,
typeof(MutableString),
Methods.GetContextFromScope.OpCall(gen.CurrentScopeVariable), part.TransformRead(gen)
)
);
opName.Append(RubyOps.SuffixMutable);
}
}
}
