public override ImperativeNode VisitWhileStatementNode(WhileStmtNode node)
{
var newExpr = node.Expr.Accept(this);
if (node.Expr != newExpr)
{
node.Expr = newExpr;
}
node.Body = VisitNodeList(node.Body);
return(node);
}
void whilestmt(out Node node)
{
WhileStmtNode whileStmtNode = new WhileStmtNode();
NodeList body = null;
Expect(22);
Expect(8);
expr(out node);
whileStmtNode.Expr = node;
Expect(9);
Expect(32);
stmtlist(out body);
whileStmtNode.Body = body;
Expect(33);
node = whileStmtNode;
}
private void WhileStmt(WhileStmtNode node)
{
ScopeManager.ScopeEnter();
node.body = new StmtNode();
Move();
RequiredToken(Tag.DL_LPAR);
node.condition = new ExprNode();
Expr(node.condition);
if (node.condition.Type() != VarType.TYPE_BOOL)
{
new TypeMismatchError(VarType.TYPE_BOOL, node.condition.Type()).PrintErrMsg();
}
RequiredToken(Tag.DL_RPAR);
Stmt(node.body);
ScopeManager.ScopeLeave();
}
public virtual void VisitWhileStatementNode(WhileStmtNode node)
{
DefaultVisit(node);
}
public virtual bool VisitWhileStatementNode(WhileStmtNode node)
{
return(DefaultVisit(node));
}
