public void SignatureHelpStarArgs()
{
SignatureAnalysis sigResult = null;
using (var view = new PythonEditor(@"def f(a, *b, c=None): pass
f(1, 2, 3, 4,")) {
for (int retries = 3; retries >= 0; --retries)
{
TestSignature(view, -1, "f", 4, out sigResult);
if (retries == 0)
{
Assert.IsTrue(sigResult.Signatures.Count >= 1, "No signature analysis results");
}
else if (sigResult.Signatures.Count >= 1)
{
break;
}
Console.WriteLine("Retry {0}", retries);
view.Text = view.Text;
}
Assert.AreEqual("*b", sigResult.Signatures[0].CurrentParameter.Name);
}
}
public void SignatureHelp()
{
var prefixes = new[] { "", "(", "a = ", "f(", "l[", "{", "if " };
var sigs = new[] {
new { Expr = "f(", Param = 0, Function = "f" },
new { Expr = "f(1,", Param = 1, Function = "f" },
new { Expr = "f(1, 2,", Param = 2, Function = "f" },
new { Expr = "f(1, (1, 2),", Param = 2, Function = "f" },
new { Expr = "f(1, a + b,", Param = 2, Function = "f" },
new { Expr = "f(1, a or b,", Param = 2, Function = "f" },
new { Expr = "f(1, a if True else b,", Param = 2, Function = "f" },
new { Expr = "a.f(1, a if True else b,", Param = 2, Function = "a.f" },
new { Expr = "a().f(1, a if True else b,", Param = 2, Function = "a().f" },
new { Expr = "a(2, 3, 4).f(1, a if True else b,", Param = 2, Function = "a(2, 3, 4).f" },
new { Expr = "a(2, (3, 4), 4).f(1, a if True else b,", Param = 2, Function = "a(2, (3, 4), 4).f" },
new { Expr = "f(lambda a, b, c: 42", Param = 0, Function = "f" },
new { Expr = "f(lambda a, b, c", Param = 0, Function = "f" },
new { Expr = "f(lambda a: lambda b, c: 42", Param = 0, Function = "f" },
new { Expr = "f(z, lambda a, b, c: 42", Param = 1, Function = "f" },
new { Expr = "f(z, lambda a, b, c", Param = 1, Function = "f" },
new { Expr = "f(z, lambda a: lambda b, c: 42", Param = 1, Function = "f" },
new { Expr = "f([a for b in c", Param = 0, Function = "f" },
// No function for f(( because ReverseExpressionParser will stop at the unmatched (
new { Expr = "f((a for b in c", Param = 0, Function = "" },
new { Expr = "f({a for b in c", Param = 0, Function = "f" },
new { Expr = "f([a for b in c],", Param = 1, Function = "f" },
new { Expr = "f((a for b in c),", Param = 1, Function = "f" },
new { Expr = "f({a for b in c},", Param = 1, Function = "f" },
new { Expr = "f(0, [a for b in c],", Param = 2, Function = "f" },
new { Expr = "f(0, (a for b in c),", Param = 2, Function = "f" },
new { Expr = "f(0, {a for b in c},", Param = 2, Function = "f" },
new { Expr = "f([1,2", Param = 0, Function = "f" },
new { Expr = "f([1,2,", Param = 0, Function = "f" },
new { Expr = "f({1:2,", Param = 0, Function = "f" },
new { Expr = "f({1,", Param = 0, Function = "f" },
new { Expr = "f({1:2", Param = 0, Function = "f" },
};
using (var view = new PythonEditor()) {
foreach (var prefix in prefixes)
{
foreach (var sig in sigs)
{
var test = prefix + sig.Expr;
Console.WriteLine(" -- {0}", test);
view.Text = test;
var snapshot = view.CurrentSnapshot;
SignatureAnalysis res = null;
view.VS.InvokeSync(() => {
res = view.VS.GetPyService().GetSignatures(
view.View.TextView,
snapshot,
snapshot.CreateTrackingSpan(snapshot.Length, 0, SpanTrackingMode.EdgeInclusive)
);
});
Assert.IsNotNull(res);
Assert.AreEqual(sig.Function, res.Text, test);
Assert.AreEqual(sig.Param, res.ParameterIndex, test);
}
}
}
}
private static void TestSignature(PythonEditor view, int location, string expectedExpression, int paramIndex, out SignatureAnalysis sigs)
{
if (location < 0)
{
location = view.CurrentSnapshot.Length + location;
}
sigs = GetSignatureAnalysis(view, location);
Assert.AreEqual(expectedExpression, sigs.Text, view.Text);
Assert.AreEqual(paramIndex, sigs.ParameterIndex, view.Text);
}
private static void TestSignature(MockVs vs, int location, string sourceCode, string expectedExpression, int paramIndex, PythonLanguageVersion version, bool analyze, out SignatureAnalysis sigs)
{
if (location < 0)
{
location = sourceCode.Length + location;
}
sigs = GetSignatureAnalysis(vs, location, sourceCode, version);
Assert.AreEqual(expectedExpression, sigs.Text, sourceCode);
Assert.AreEqual(paramIndex, sigs.ParameterIndex, sourceCode);
}
