Mercurial Hosting > luan
diff src/luan/interp/LuaParser.java @ 42:786699c78837
implement try-catch
git-svn-id: https://luan-java.googlecode.com/svn/trunk@43 21e917c8-12df-6dd8-5cb6-c86387c605b9
| author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
|---|---|
| date | Sun, 23 Dec 2012 06:36:56 +0000 |
| parents | e3624b7cd603 |
| children | 57054fa43189 |
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--- a/src/luan/interp/LuaParser.java Fri Dec 21 19:34:50 2012 +0000 +++ b/src/luan/interp/LuaParser.java Sun Dec 23 06:36:56 2012 +0000 @@ -223,6 +223,7 @@ BreakStmt(), GenericForStmt(), NumericForStmt(), + TryStmt(), DoStmt(), WhileStmt(), RepeatStmt(), @@ -316,6 +317,16 @@ ); } + Rule TryStmt() { + return Sequence( + Keyword("try"), Block(), + Keyword("catch"), Name(), addSymbol( (String)pop() ), + Keyword("do"), Block(), Keyword("end"), + push( new TryStmt( (Stmt)pop(1), symbolsSize()-1, (Stmt)pop() ) ), + popSymbols(1) + ); + } + Rule DoStmt() { return Sequence( Keyword("do"), Block(), Keyword("end") @@ -827,6 +838,7 @@ static final Set<String> keywords = new HashSet<String>(Arrays.asList( "and", "break", + "catch", "do", "else", "elseif", @@ -847,6 +859,7 @@ "then", "to", "true", + "try", "until", "while" ));