public override void Repr(ReprBuilder builder) {
// In Python 2.7, string literals in bytearray repr use the 3.x-style prefixed b'...' form.
var langVer =
builder.Options.LanguageVersion <= PythonLanguageVersion.V27 ?
PythonLanguageVersion.V33 :
builder.Options.LanguageVersion;
var constExpr = new ConstantExpression(new AsciiString(ToBytes(), ToString()));
builder.Append("bytearray(");
builder.Append(constExpr.GetConstantRepr(langVer, escape8bitStrings: true));
builder.Append(")");
}
/// <summary>
/// Appends <paramref name="value"/> represented as a Python literal.
/// </summary>
/// <remarks>
/// Supports numeric types, booleans, and ASCII and Unicode strings. For integer types, representation depends on <see cref="HexadecimalDisplay"/>.
/// </remarks>
public ReprBuilder AppendLiteral(object value)
{
if (TryAppendDecOrHex(value))
{
if (value is BigInteger && Options.LanguageVersion <= PythonLanguageVersion.V27)
{
Append("L");
}
}
else
{
var constExpr = new ConstantExpression(value);
Append(constExpr.GetConstantRepr(Options.LanguageVersion, escape8bitStrings: true));
}
return(this);
}
private void GetFunctionDescription(FunctionDefinition def, Action <string, VSOBDESCRIPTIONSECTION, IVsNavInfo> addDescription)
{
addDescription(ScopeNode.Name, VSOBDESCRIPTIONSECTION.OBDS_NAME, null);
addDescription("(", VSOBDESCRIPTIONSECTION.OBDS_MISC, null);
for (int i = 0; i < def.Parameters.Count; i++)
{
if (i != 0)
{
addDescription(", ", VSOBDESCRIPTIONSECTION.OBDS_MISC, null);
}
var curParam = def.Parameters[i];
string name = curParam.Name;
if (curParam.IsDictionary)
{
name = "**" + name;
}
else if (curParam.IsList)
{
name = "*" + curParam.Name;
}
if (curParam.DefaultValue != null)
{
// TODO: Support all possible expressions for default values, we should
// probably have a PythonAst walker for expressions or we should add ToCodeString()
// onto Python ASTs so they can round trip
ConstantExpression defaultValue = curParam.DefaultValue as ConstantExpression;
if (defaultValue != null)
{
// FIXME: Use python repr
name = name + " = " + defaultValue.GetConstantRepr(def.GlobalParent.LanguageVersion);
}
}
addDescription(name, VSOBDESCRIPTIONSECTION.OBDS_PARAM, null);
}
addDescription(")\n", VSOBDESCRIPTIONSECTION.OBDS_MISC, null);
}
internal static string GetDefaultValue(PythonAnalyzer state, Parameter curParam, PythonAst tree)
{
if (curParam.DefaultValue != null)
{
// TODO: Support all possible expressions for default values, we should
// probably have a PythonAst walker for expressions or we should add ToCodeString()
// onto Python ASTs so they can round trip
ConstantExpression defaultValue = curParam.DefaultValue as ConstantExpression;
if (defaultValue != null)
{
return(defaultValue.GetConstantRepr(state.LanguageVersion));
}
else
{
NameExpression nameExpr = curParam.DefaultValue as NameExpression;
if (nameExpr != null)
{
return(nameExpr.Name);
}
else
{
DictionaryExpression dict = curParam.DefaultValue as DictionaryExpression;
if (dict != null)
{
if (dict.Items.Count == 0)
{
return("{}");
}
else
{
return("{...}");
}
}
else
{
ListExpression list = curParam.DefaultValue as ListExpression;
if (list != null)
{
if (list.Items.Count == 0)
{
return("[]");
}
else
{
return("[...]");
}
}
else
{
TupleExpression tuple = curParam.DefaultValue as TupleExpression;
if (tuple != null)
{
if (tuple.Items.Count == 0)
{
return("()");
}
else
{
return("(...)");
}
}
else
{
return(curParam.DefaultValue.ToCodeString(tree));
}
}
}
}
}
}
return(null);
}