Parse try/catch statement

Parser.Tests/MParserShould.cs

@@ -439,5 +439,15 @@ namespace Parser.Tests
             Assert.AreEqual("some string", s.Token.PureToken.Value);
             Assert.AreEqual(text, actual.FullText);
         }
+
+        [Test]
+        public void ParseTryCatchStatement()
+        {
+            var text = "try a = b catch c = d end";
+            var sut = CreateParser(text);
+            var actual = sut.ParseStatement();
+            Assert.IsInstanceOf<TryCatchStatementNode>(actual);
+            Assert.AreEqual(text, actual.FullText);
+        }
     }
 }

Parser/MParser.cs

@@ -825,6 +825,16 @@ namespace Parser
             return Factory.ForStatement(forKeyword, forAssignment, body, endKeyword, commas);
         }
 
+        public TryCatchStatementNode ParseTryCatchStatement()
+        {
+            var tryKeyword = Factory.Token(EatIdentifier("try"));
+            var tryBody = ParseStatements();
+            var catchKeyword = Factory.Token(EatIdentifier("catch"));
+            var catchBody = ParseStatements();
+            var endKeyword = Factory.Token(EatIdentifier("end"));
+            return Factory.TryCatchStatement(tryKeyword, tryBody, catchKeyword, catchBody, endKeyword);
+        }
+
         public StatementNode ParseStatementCore()
         {
             if (CurrentToken.Kind == TokenKind.Identifier)
@@ -865,6 +875,14 @@ namespace Parser
                 {
                     return ParseForStatement();
                 }
+                else if (CurrentToken.PureToken.LiteralText == "try")
+                {
+                    return ParseTryCatchStatement();
+                }
+                else if (CurrentToken.PureToken.LiteralText == "catch")
+                {
+                    return null;
+                }
 
                 return ParseExpressionStatement();
             }

Parser/SyntaxFactory.cs

@@ -595,5 +595,31 @@ namespace Parser
             SetParent(result);
             return result;
         }
+
+        public TryCatchStatementNode TryCatchStatement(
+            TokenNode tryKeyword,
+            StatementListNode tryBody,
+            TokenNode catchKeyword,
+            StatementListNode catchBody,
+            TokenNode endKeyword)
+        {
+            var children = new List<SyntaxNode>
+            {
+                tryKeyword,
+                tryBody,
+                catchKeyword,
+                catchBody,
+                endKeyword
+            };
+            var result = new TryCatchStatementNode(
+                children,
+                tryKeyword,
+                tryBody,
+                catchKeyword,
+                catchBody,
+                endKeyword);
+            SetParent(result);
+            return result;
+        }
     }
 }

Parser/SyntaxNode.cs

@@ -658,4 +658,29 @@ namespace Parser
             Body = body;
         }
     }
+
+    public class TryCatchStatementNode : StatementNode
+    {
+        public TokenNode TryKeyword { get; }
+        public StatementListNode TryBody { get; }
+        public TokenNode CatchKeyword { get; }
+        public StatementListNode CatchBody { get; }
+        public TokenNode EndKeyword { get; }
+
+        public TryCatchStatementNode(
+            List<SyntaxNode> children,
+            TokenNode tryKeyword,
+            StatementListNode tryBody,
+            TokenNode catchKeyword,
+            StatementListNode catchBody,
+            TokenNode endKeyword
+        ) : base(children)
+        {
+            TryKeyword = tryKeyword;
+            TryBody = tryBody;
+            CatchKeyword = catchKeyword;
+            CatchBody = catchBody;
+            EndKeyword = endKeyword;
+        }
+    }
 }