public void NameOfConstEvaluatorTest(string textExpression, string expectedValue)
{
var walker = new ConstantExpressionSyntaxEvaluator <string>();
var exp = SyntaxTreeHelper.GetExpressionSyntax($"nameof({textExpression})");
var value = walker.Visit(exp);
Assert.Equal(expectedValue, value);
}
public void SimpleStringConstEvaluatorTest()
{
var textValue = "MyValue";
var walker = new ConstantExpressionSyntaxEvaluator <string>();
var exp = SyntaxTreeHelper.GetExpressionSyntax($@"""{textValue}""");
var value = walker.Visit(exp);
Assert.Equal(textValue, value);
}
public bool TryMatchRepeatDeclaration(AttributeSyntax repeatAttributeSyntax, string expression)
{
var constEvaluator = new ConstantExpressionSyntaxEvaluator <string>();
var patternName = constEvaluator.Visit(repeatAttributeSyntax.ArgumentList.Arguments.First().Expression);
// get the property from the current pattern generic definition.
var repeatProperty = this.pattern.Properties.First(p => p.Name == patternName);
return(AutomatedPropertyStrategy.Match(repeatProperty, expression));
}
public void RepeatDeclaration(
AttributeSyntax repeatAttributeSyntax,
Action <IAutomatedStrategy> callback)
{
var constEvaluator = new ConstantExpressionSyntaxEvaluator <string>();
var patternName = constEvaluator.Visit(repeatAttributeSyntax.ArgumentList.Arguments.First().Expression);
var repeatPattern = this.resolver.Resolve(patternName, this.pattern);
foreach (var declaration in this.declarations)
{
callback(
new AutomatedGenericStrategy(
(IGenericDeclaration <SyntaxNode>)repeatPattern,
(IGenericDeclaration <SyntaxNode>)declaration,
this.resolver));
}
}
private ISelector GetSelectorFromPatternAttribute(AttributeSyntax attributeSyntax)
{
var selectorExp = attributeSyntax.ArgumentList.Arguments.First();
var constEvaluator = new ConstantExpressionSyntaxEvaluator <string>();
var selectorTypeName = constEvaluator.Visit(selectorExp.Expression);
var nsBase = this.pattern.UsingDirectives
.Concat(NameSpaceHelper.GetParentNameSpaces(this.pattern.DeclarationNameSpace));
foreach (var usingDirective in nsBase)
{
var selectorType = Type.GetType($"{usingDirective}.{selectorTypeName}");
if (selectorType != null)
{
return((ISelector)Activator.CreateInstance(selectorType));
}
}
throw new ArgumentException($"Unknown selector {selectorTypeName}");
}
public void RepeatDeclaration(
AttributeSyntax repeatAttributeSyntax,
Action <IAutomatedStrategy> callback)
{
var constEvaluator = new ConstantExpressionSyntaxEvaluator <string>();
var patternName = constEvaluator.Visit(repeatAttributeSyntax.ArgumentList.Arguments.First().Expression);
var resolved = this.resolver.Resolve(patternName, this.pattern);
// Check if this is self repeat pattern reference.
if (object.ReferenceEquals(this.pattern, resolved))
{
callback(this);
return;
}
// get the property from the current pattern generic definition.
var repeatProperty = this.pattern.Properties.First(p => p.Name == patternName);
ISelector selector;
// Get the selector if any from the matching property.
if (repeatProperty.SyntaxNodeProvider.SyntaxNode.AttributeLists
.TryMatchAttributeName <PatternAttribute>(out var attributeSyntax))
{
selector = this.GetSelectorFromPatternAttribute(attributeSyntax);
}
else
{
selector = new AllPropertySelector();
}
foreach (var propertyDeclaration in selector.GetProperties(this.declaration))
{
var strategy = new AutomatedPropertyStrategy(repeatProperty, propertyDeclaration);
callback(strategy);
}
}
