public virtual void VisitParameterDeclarationSyntax(ParameterDeclarationSyntax syntax)
{
this.Visit(syntax.Keyword);
this.Visit(syntax.Name);
this.Visit(syntax.Type);
this.Visit(syntax.Modifier);
}
public static SyntaxBase?TryGetDefaultValue(ParameterDeclarationSyntax parameterDeclarationSyntax)
{
if (parameterDeclarationSyntax.Modifier is ParameterDefaultValueSyntax defaultValueSyntax)
{
return(defaultValueSyntax.DefaultValue);
}
return(null);
}
public static SyntaxBase?TryGetDefaultValue(ParameterDeclarationSyntax parameterDeclarationSyntax)
{
if (parameterDeclarationSyntax.Modifier is ParameterDefaultValueSyntax defaultValueSyntax)
{
return(defaultValueSyntax.DefaultValue);
}
if (parameterDeclarationSyntax.Modifier is ObjectSyntax modifierObject)
{
return(TryGetObjectProperty(modifierObject, LanguageConstants.ParameterDefaultPropertyName));
}
return(null);
}
public static IEnumerable <SyntaxBase>?TryGetAllowedItems(ParameterDeclarationSyntax parameterDeclarationSyntax)
{
if (!(parameterDeclarationSyntax.Modifier is ObjectSyntax modifierObject))
{
return(null);
}
var allowedValuesSyntax = TryGetObjectProperty(modifierObject, LanguageConstants.ParameterAllowedPropertyName);
if (!(allowedValuesSyntax is ArraySyntax allowedArraySyntax))
{
return(null);
}
return(allowedArraySyntax.Items.Select(i => i.Value));
}
protected virtual SyntaxBase ReplaceParameterDeclarationSyntax(ParameterDeclarationSyntax syntax)
{
var hasChanges = TryRewrite(syntax.LeadingNodes, out var leadingNodes);
hasChanges |= TryRewriteStrict(syntax.Keyword, out var keyword);
hasChanges |= TryRewriteStrict(syntax.Name, out var name);
hasChanges |= TryRewrite(syntax.Type, out var type);
hasChanges |= TryRewrite(syntax.Modifier, out var modifier);
if (!hasChanges)
{
return(syntax);
}
return(new ParameterDeclarationSyntax(leadingNodes, keyword, name, type, modifier));
}
public static ArraySyntax?TryGetAllowedSyntax(ParameterDeclarationSyntax parameterDeclarationSyntax)
{
if (!(parameterDeclarationSyntax.Modifier is ObjectSyntax modifierObject))
{
return(null);
}
var allowedValuesSyntax = TryGetObjectProperty(modifierObject, LanguageConstants.ParameterAllowedPropertyName);
if (!(allowedValuesSyntax is ArraySyntax allowedArraySyntax))
{
return(null);
}
return(allowedArraySyntax);
}
public static IEnumerable<SyntaxBase>? TryGetAllowedItems(ParameterDeclarationSyntax parameterDeclarationSyntax)
{
if (!(parameterDeclarationSyntax.Modifier is ObjectSyntax modifierObject))
{
return null;
}
var allowedProperty = modifierObject.Properties.SingleOrDefault(p => p.TryGetKeyText() == LanguageConstants.ParameterAllowedPropertyName);
if (allowedProperty == null)
{
return null;
}
if (!(allowedProperty.Value is ArraySyntax allowedArraySyntax))
{
return null;
}
return allowedArraySyntax.Items.Select(i => i.Value);
}
public static TypeSymbol?TryGetPrimitiveType(ParameterDeclarationSyntax parameterDeclarationSyntax) => LanguageConstants.TryGetDeclarationType(parameterDeclarationSyntax.ParameterType?.TypeName);
void ISyntaxVisitor.VisitParameterDeclarationSyntax(ParameterDeclarationSyntax syntax) => ReplaceCurrent(syntax, ReplaceParameterDeclarationSyntax);
protected virtual ParameterDeclarationSyntax ReplaceParameterDeclarationSyntax(ParameterDeclarationSyntax syntax)
{
var hasChanges = Rewrite(syntax.Keyword, out var keyword);
hasChanges |= Rewrite(syntax.Name, out var name);
hasChanges |= Rewrite(syntax.Type, out var type);
hasChanges |= RewriteNullable(syntax.Modifier, out var modifier);
if (!hasChanges)
{
return(syntax);
}
return(new ParameterDeclarationSyntax(keyword, name, type, modifier));
}