//
// Top node of grammar
// See grammar for how the following methods relate to each
// other.
//
private GenericExpressionNode Expr(string expression)
{
GenericExpressionNode node = BooleanTerm(expression);
if (!lexer.IsNext(Token.TokenType.EndOfInput))
{
node = ExprPrime(expression, node);
}
#region REMOVE_COMPAT_WARNING
// Check for potential change in behavior
if (LoggingServices != null && !warnedForExpression &&
node.PotentialAndOrConflict())
{
// We only want to warn once even if there multiple () sub expressions
warnedForExpression = true;
// Try to figure out where this expression was located
string projectFile = String.Empty;
int lineNumber = 0;
int columnNumber = 0;
if (this.conditionAttribute != null)
{
projectFile = XmlUtilities.GetXmlNodeFile(this.conditionAttribute, String.Empty /* no project file if XML is purely in-memory */);
XmlSearcher.GetLineColumnByNode(this.conditionAttribute, out lineNumber, out columnNumber);
}
// Log a warning regarding the fact the expression may have been evaluated
// incorrectly in earlier version of MSBuild
LoggingServices.LogWarning(logBuildEventContext, new BuildEventFileInfo(projectFile, lineNumber, columnNumber), "ConditionMaybeEvaluatedIncorrectly", expression);
}
#endregion
return(node);
}
