New failable based error handling. Labelled break/continue/next.

resources/examples/binarydigits.c3

@@ -8,10 +8,10 @@ func int main()
     }
 }
 
-func string@ bin(int x)
+func string bin(int x)
 {
     int bits = (x == 0) ? 1 : log10(cast(x, double)) / log10(2);
-    string@ ret = string.make_repeat('0', bits);
+    string ret = str.make_repeat('0', bits);
     for (int i = 0; i < bits; i++)
     {
         ret[bits - i - 1] = x & 1 ? '1' : '0';

resources/examples/madlibs.c3

@@ -21,12 +21,7 @@ func void main()
     {
         string s = match.string;
         printf("Enter a value for '%s': ", s.slice(1, s.size - 2));
-        string! word = strin.readln().strip();
-        catch (word)
-        {
-            // Exit on error.
-            return;
-        }
+        string word = strin.readln().strip() else return;
         story = story.replace(s, word);
     }
 

resources/examples/toml_parser_c2.c3

@@ -110,7 +110,7 @@ struct Parser
 /**
  * @ensure const(input)
  */
-func Parser.parse(Parser* p, char* input, char* diagMsg, Blocks* blocks) throws
+func void! Parser.parse(Parser* p, char* input, char* diagMsg, Blocks* blocks)
 {
     p.tokenizer.init(input);
     p.tok.init();
@@ -125,15 +125,9 @@ func Parser.parse(Parser* p, char* input, char* diagMsg, Blocks* blocks) throws
 
     try p.consumeToken();
     try p.parseTopLevel();
-    return true;
-
-    catch (error e)
-    {
-        return false;
-    }
 }
 
-func void Parser.parseTopLevel(Parser* p) throws ParseError
+func void! Parser.parseTopLevel(Parser* p)
 {
     // key = value
     // | [[array]]
@@ -150,7 +144,7 @@ func void Parser.parseTopLevel(Parser* p) throws ParseError
                 p.parseTableArray();
             default:
                 sprintf(p.errorMsg, "syntax error %s", p.tok.loc.str());
-                throw ParseError.SYNTAX_ERROR;
+                return SyntaxError!;
         }
     }
 }