//assert_stmt: 'assert' expression [',' expression]
private AssertStatement ParseAssertStmt()
{
Eat(TokenKind.KeywordAssert);
string whiteSpace = _tokenWhiteSpace;
var start = GetStart();
Expression expr = ParseExpression();
Expression message = null;
string commaWhiteSpace = null;
if (MaybeEat(TokenKind.Comma)) {
commaWhiteSpace = _tokenWhiteSpace;
message = ParseExpression();
}
AssertStatement ret = new AssertStatement(expr, message);
if (_verbatim) {
AddPreceedingWhiteSpace(ret, whiteSpace);
AddSecondPreceedingWhiteSpace(ret, commaWhiteSpace);
}
ret.SetLoc(start, GetEnd());
return ret;
}
// AssertStatement
public override bool Walk(AssertStatement node)
{
return ShouldWalkWorker(node);
}
public override bool Walk(AssertStatement node)
{
// check if the assert statement contains any isinstance calls.
CallExpression callExpr = node.Test as CallExpression;
var isInstanceNames = GetIsInstanceNamesAndExpressions(node.Test);
if (isInstanceNames != null) {
// we need to introduce a new scope
PushIsInstanceScope(node, isInstanceNames, _curSuite);
} else {
UpdateChildRanges(node);
}
return base.Walk(node);
}
public override void PostWalk(AssertStatement node)
{
PostWalkWorker(node);
}
