// Coerces a scalar value
static object ParseValueScalar(ScalarGraphType scalarGraphType, VariableName variableName, object value)
{
if (value == null)
{
return(null);
}
object ret;
try
{
ret = scalarGraphType.ParseValue(value);
}
catch (Exception ex)
{
throw new InvalidVariableError(variableName, $"Unable to convert '{value}' to '{scalarGraphType.Name}'", ex);
}
if (ret == null)
{
throw new InvalidVariableError(variableName, $"Unable to convert '{value}' to '{scalarGraphType.Name}'");
}
return(ret);
}
public string PrintType(IGraphType type)
{
return(type switch
{
EnumerationGraphType graphType => PrintEnum(graphType),
ScalarGraphType scalarGraphType => PrintScalar(scalarGraphType),
IObjectGraphType objectGraphType => PrintObject(objectGraphType),
IInterfaceGraphType interfaceGraphType => PrintInterface(interfaceGraphType),
UnionGraphType unionGraphType => PrintUnion(unionGraphType),
DirectiveGraphType directiveGraphType => PrintDirective(directiveGraphType), //TODO: DirectiveGraphType does not inherit IGraphType
IInputObjectGraphType input => PrintInputObject(input),
_ => throw new InvalidOperationException($"Unknown GraphType '{type.GetType().Name}' with name '{type.Name}'")
});
/// <summary>
/// Builds an execution node with the specified parameters.
/// </summary>
protected ExecutionNode BuildSubscriptionExecutionNode(ExecutionNode parent, IGraphType graphType, Field field, FieldType fieldDefinition, int?indexInParentNode, object source)
{
if (graphType is NonNullGraphType nonNullFieldType)
{
graphType = nonNullFieldType.ResolvedType;
}
return(graphType switch
{
ListGraphType _ => new SubscriptionArrayExecutionNode(parent, graphType, field, fieldDefinition, indexInParentNode, source),
IObjectGraphType _ => new SubscriptionObjectExecutionNode(parent, graphType, field, fieldDefinition, indexInParentNode, source),
IAbstractGraphType _ => new SubscriptionObjectExecutionNode(parent, graphType, field, fieldDefinition, indexInParentNode, source),
ScalarGraphType scalarGraphType => new SubscriptionValueExecutionNode(parent, scalarGraphType, field, fieldDefinition, indexInParentNode, source),
_ => throw new InvalidOperationException($"Unexpected type: {graphType}")
});
public static ExecutionNode BuildExecutionNode(ExecutionNode parent, IGraphType graphType, Field field, FieldType fieldDefinition, int?indexInParentNode = null)
{
if (graphType is NonNullGraphType nonNullFieldType)
{
graphType = nonNullFieldType.ResolvedType;
}
return(graphType switch
{
ListGraphType _ => new ArrayExecutionNode(parent, graphType, field, fieldDefinition, indexInParentNode),
IObjectGraphType _ => new ObjectExecutionNode(parent, graphType, field, fieldDefinition, indexInParentNode),
IAbstractGraphType _ => new ObjectExecutionNode(parent, graphType, field, fieldDefinition, indexInParentNode),
ScalarGraphType _ => new ValueExecutionNode(parent, graphType, field, fieldDefinition, indexInParentNode),
_ => throw new InvalidOperationException($"Unexpected type: {graphType}")
});
public static ExecutionNode BuildExecutionNode(ExecutionNode parent, IGraphType graphType, Field field, FieldType fieldDefinition, string[] path = null)
{
path ??= AppendPath(parent.Path, field.Name);
if (graphType is NonNullGraphType nonNullFieldType)
{
graphType = nonNullFieldType.ResolvedType;
}
return(graphType switch
{
ListGraphType _ => new ArrayExecutionNode(parent, graphType, field, fieldDefinition, path),
IObjectGraphType _ => new ObjectExecutionNode(parent, graphType, field, fieldDefinition, path),
IAbstractGraphType _ => new ObjectExecutionNode(parent, graphType, field, fieldDefinition, path),
ScalarGraphType _ => new ValueExecutionNode(parent, graphType, field, fieldDefinition, path),
_ => throw new InvalidOperationException($"Unexpected type: {graphType}")
});
public void VisitScalar(ScalarGraphType scalar, ISchema schema) => ValidateAppliedDirectives(scalar, schema, DirectiveLocation.Scalar);
/// <summary>
/// Initializes an instance of <see cref="ValueExecutionNode"/> with the specified values.
/// </summary>
public ValueExecutionNode(ExecutionNode parent, ScalarGraphType graphType, GraphQLField field, FieldType fieldDefinition, int?indexInParentNode)
: base(parent, graphType, field, fieldDefinition, indexInParentNode)
{
}
public string PrintScalar(ScalarGraphType type)
{
var description = Options.IncludeDescriptions ? PrintDescription(type.Description) : "";
return(description + "scalar {0}".ToFormat(type.Name));
}
public virtual void VisitScalar(ScalarGraphType scalar)
{
}
public SubscriptionValueExecutionNode(ExecutionNode parent, ScalarGraphType graphType, Field field, FieldType fieldDefinition, int?indexInParentNode, object source)
: base(parent, graphType, field, fieldDefinition, indexInParentNode)
{
Source = source;
}
/// <inheritdoc />
public virtual void VisitScalar(ScalarGraphType type, ISchema schema)
{
}
public string PrintScalar(ScalarGraphType type)
{
return("scalar {0}".ToFormat(type.Name));
}
/// <inheritdoc/> public void VisitScalar(ScalarGraphType type, ISchema schema) => ValidateAppliedDirectives(type, null, null, schema, DirectiveLocation.Scalar);
/// <inheritdoc/>
public virtual void VisitScalar(ValidationContext context, VariableDefinition variable, VariableName variableName, ScalarGraphType type, object?variableValue, object?parsedValue)
{
}
public string PrintScalar(ScalarGraphType type)
{
var description = PrintDescription(type.Description);
return(description + "scalar {0}".ToFormat(type.Name));
}
public void VisitScalar(ValidationContext context, VariableDefinition variable, VariableName variableName, ScalarGraphType type, object?variableValue, object?parsedValue)
{
foreach (var visitor in _visitors)
{
visitor.VisitScalar(context, variable, variableName, type, variableValue, parsedValue);
}
}
public override void VisitScalar(ScalarGraphType type, ISchema schema) => SetDescription(type);
public override void VisitScalar(ScalarGraphType scalar, ISchema schema) => SetDescription(scalar);