public ILeftHandSideExpression Match <TFact>(Expression <Func <TFact> > alias, params Expression <Func <TFact, bool> >[] conditions)
{
var symbol = alias.ToParameterExpression();
var patternBuilder = _groupBuilder.Pattern(symbol.Type, symbol.Name);
patternBuilder.DslConditions(_groupBuilder.Declarations, conditions);
return(this);
}
public ILeftHandSideExpression Match <TFact>(Expression <Func <TFact> > alias, params Expression <Func <TFact, bool> >[] conditions)
{
var symbol = alias.ToParameterExpression();
var patternBuilder = _builder.Pattern(symbol.Type, symbol.Name);
patternBuilder.DslConditions(_symbolStack.Scope.Declarations, conditions);
_symbolStack.Scope.Add(patternBuilder.Declaration);
_currentPatternBuilder = patternBuilder;
return(this);
}
public override void EnterRuleFactMatch(RuleFactMatchContext context)
{
var patternTypeName = context.type().GetText();
var patternType = _parserContext.GetType(patternTypeName);
var variableTypeName = context.local_variable_type().VAR() == null
? context.local_variable_type().type().GetText()
: patternTypeName;
var variableType = _parserContext.GetType(variableTypeName);
var id = context.identifier().GetText();
_parserContext.Scope.Declare(variableType, id);
var patternBuilder = _groupBuilder.Pattern(patternType, id);
if (context.expression_list() != null)
{
foreach (var expressionContext in context.expression_list().expression())
{
using (_parserContext.PushScope())
{
var expressionParser = new ExpressionParser(_parserContext, patternType);
var expression = (LambdaExpression)expressionParser.Visit(expressionContext);
patternBuilder.DslConditions(_groupBuilder.Declarations, expression);
}
}
}
}
