public static GqlQueryNode FromField(FieldType field, VariablesResolver variablesResolver, object variableValuesSource)
{
var graphType = field.ResolvedType is IProvideResolvedType provideResolvedType
? provideResolvedType.ResolvedType
: field.ResolvedType;
return(new GqlQueryNode(field.Name, NodeType.Field, graphType, field.Arguments, variablesResolver, variableValuesSource));
}
public string BuildQuery(Expression expression, VariablesResolver variablesResolver, out string entryPoint)
{
var(root, _) = GetQueryNode(expression, null, true, variablesResolver, null);
root.Prune();
entryPoint = root.Name;
var query = root.ToQueryString();
return(query);
}
public GqlQueryNode(string name, NodeType type, IGraphType graphType, IEnumerable <QueryArgument> arguments, VariablesResolver variablesResolver, object variableValuesSource)
{
this.type = type;
this.arguments = arguments;
this.variablesResolver = variablesResolver;
this.variableValuesSource = variableValuesSource;
Name = name;
GraphType = graphType;
}
private (GqlQueryNode root, GqlQueryNode head) GetQueryNode(Expression expression, IComplexGraphType owner, bool includeScalar, VariablesResolver variablesResolver, object variablesSource)
{
return(expression switch
{
MethodCallExpression methodCall => GetQueryNodeFromMethodCall(methodCall, owner, includeScalar, variablesResolver, variablesSource),
ConstantExpression constant => GetQueryNodeFromConstant(constant, includeScalar, variablesResolver, variablesSource),
UnaryExpression unary => unary.NodeType switch
{
ExpressionType.Quote => GetQueryNode(unary.Operand, owner, includeScalar, variablesResolver, variablesSource),
_ => throw new NotImplementedException()
},
