[Proposal] try/catch expressions

[saleyn]

I have a feature request to convert try/catch statements to expressions similarly how it's done in C# 7.x. Additionally, when used with code blocks, the last value is returned as the result of the expression:

Example:

• Current:

string a;
try
{
  a = SomeFunctionThatMightThrow();
}
catch (Exception a)
{
  Print(e);
  a = DefValue;
}

• Proposed:

var a = try { SomeFunctionThatMightThrow(); } catch (Exception e) { Print(e); DefValue; };
var b = try { SomeFunctionThatMightThrow(); } catch { DefValue };
var c = try   SomeFunctionThatMightThrow()   catch DefValue;

[jcouv]

@saleyn Language design discussions have moved over to the csharplang.
What you describe sounds much like dotnet/csharplang#980
I'll go ahead and close this issue as duplicate. Feel free to continue the discussion there.