[antlr-interest] if-else if ast question...

[pady]

I have an if-else if grammar as follows ( showing only the main 
sections )...

statement
 :  statementExpression ';'  -> statementExpression
 | 'if' boolExpression ifStatementBlock (options {k=1;}:'else' 
elseStmt=statement)?
   -> ^('if' boolExpression ifStatementBlock $elseStmt ?)
 | compoundStatement
 ;

compoundStatement
 : '{' statement* '}' -> statement*
 ;

ifStatementBlock
 : statementExpression ';' -> statementExpression
 | compoundStatement
 ;

boolExpression
 : '(' expression ')' -> expression
 ;

...
...


When my input is


if ( field1.oldValue > 4 or
 ( field2.oldValue == "hello" and field3.newValue != "World" )
   ) {
     loadUsersFromRole(field1.newValue);
} else if ( field2.newValue == "world" ) {
     sendEmail("user1");
     sendEmail("user2");
} else {
     loadData("Hello World");
}


The generated ast is...

(if
     (or
          (> field1 . oldValue 4)
          (and
           (== field2 . oldValue "hello")
           (!= field3 . newValue "World")
          )
     )
     (loadUsersFromRole field1 . newValue)
     (if
      (== field2 . newValue "world")
      (sendEmail "user1")
      (sendEmail "user2")
      (loadData "Hello World")
     )
)


The problem I see are:

1. The else-if node is inside the "if" node.
2. The else node is inside the "else if" node.

How do I make this as if the 3 nodes appear so that one can walk the tree 
and figure out that this is an if/else if/else block ?

Any ideas appreciated.


Thx

-- pady