internal static IInterpetedImplementation Implementation(InterpetedMemberDefinition parameterDefinition,
InterpetedMemberDefinition contextDefinition,
IInterpetedOperation[] body,
InterpetedContext context,
IInterpetedScopeTemplate scope,
IMethodType implementationType)
=> Root(new Func <IRunTimeAnyRoot, RunTimeAnyRootEntry>[] { InterpetedImplementationIntention(parameterDefinition, contextDefinition, body, context, scope, implementationType) }).Has <IInterpetedImplementation>();
internal static IInterpetedMethod <TIn, TOut> InternalMethod <TIn, TOut>(InterpetedMemberDefinition <TIn> parameterDefinition,
IInterpetedOperation <IInterpetedAnyType>[] body,
InterpetedContext context,
IInterpetedScopeTemplate scope,
IMethodType methodType)
where TIn : IInterpetedAnyType
where TOut : IInterpetedAnyType
=> Root(new Func <IRunTimeAnyRoot, RunTimeAnyRootEntry>[] { InterpetedMethodIntention <TIn, TOut>(parameterDefinition, body, context, scope, methodType) }).Has <IInterpetedMethod <TIn, TOut> >();
public ExpressionResult ParseGqlarg(IMethodType fieldArgumentContext, EntityGraphQLParser.GqlargContext context)
{
ExpressionResult gqlVarValue = null;
if (context.gqlVar() != null)
{
string varKey = context.gqlVar().GetText().TrimStart('$');
object value = variables.GetValueFor(varKey);
gqlVarValue = (ExpressionResult)Expression.Constant(value);
}
else
{
// this is an expression
gqlVarValue = constantVisitor.Visit(context.gqlvalue);
}
string argName = context.gqlfield.GetText();
if (fieldArgumentContext != null && fieldArgumentContext.HasArgumentByName(argName))
{
var argType = fieldArgumentContext.GetArgumentType(argName);
if (gqlVarValue != null && gqlVarValue.Type == typeof(string) && gqlVarValue.NodeType == ExpressionType.Constant)
{
string strValue = (string)((ConstantExpression)gqlVarValue).Value;
if (
(argType.Type == typeof(Guid) || argType.Type == typeof(Guid?) ||
argType.Type == typeof(RequiredField <Guid>) || argType.Type == typeof(RequiredField <Guid?>)) && ConstantVisitor.GuidRegex.IsMatch(strValue))
{
return((ExpressionResult)Expression.Constant(Guid.Parse(strValue)));
}
if (argType.Type.IsConstructedGenericType && argType.Type.GetGenericTypeDefinition() == typeof(EntityQueryType <>))
{
string query = strValue;
if (query.StartsWith("\""))
{
query = query.Substring(1, context.gqlvalue.GetText().Length - 2);
}
return(BuildEntityQueryExpression(fieldArgumentContext, fieldArgumentContext.Name, argName, query));
}
var argumentNonNullType = argType.Type.IsNullableType() ? Nullable.GetUnderlyingType(argType.Type) : argType.Type;
if (argumentNonNullType.GetTypeInfo().IsEnum)
{
var enumName = strValue;
var valueIndex = Enum.GetNames(argumentNonNullType).ToList().FindIndex(n => n == enumName);
if (valueIndex == -1)
{
throw new EntityGraphQLCompilerException($"Value {enumName} is not valid for argument {context.gqlfield.GetText()}");
}
var enumValue = Enum.GetValues(argumentNonNullType).GetValue(valueIndex);
return((ExpressionResult)Expression.Constant(enumValue));
}
}
}
return(gqlVarValue);
}
internal static Func <IRunTimeAnyRoot, RunTimeAnyRootEntry> InterpetedMethodIntention(
InterpetedMemberDefinition parameterDefinition,
IInterpetedOperation[] body,
InterpetedContext context,
IInterpetedScopeTemplate scope,
IMethodType methodType)
=> root => {
var item = new InterpetedMethod(parameterDefinition, body, context, scope, methodType, root);
return(new RunTimeAnyRootEntry(item, methodType));
};
private static object GetGqlArgs(IMethodType field, ISchemaProvider schema, IReadOnlyDictionary <Type, string> combinedMapping, string noArgs = "")
{
if (field.Arguments == null || !field.Arguments.Any())
{
return(noArgs);
}
var all = field.Arguments.Select(f => ToCamelCaseStartsLower(f.Key) + ": " + ClrToGqlType(f.Value.TypeNotNullable, false, f.Value.Type, schema, combinedMapping));
return($"({string.Join(", ", all)})");
}
public void Init(
InterpetedMemberDefinition parameterDefinition,
IInterpetedOperation[] methodBody,
IInterpetedScopeTemplate scope,
IMethodType methodType)
{
ParameterDefinition = parameterDefinition ?? throw new ArgumentNullException(nameof(parameterDefinition));
Body = methodBody ?? throw new ArgumentNullException(nameof(methodBody));
Scope = scope ?? throw new ArgumentNullException(nameof(scope));
MethodType = methodType ?? throw new ArgumentNullException(nameof(methodType));
}
internal static Func <IRunTimeAnyRoot, RunTimeAnyRootEntry> InterpetedMethodIntention <TIn, TOut>(
InterpetedMemberDefinition <TIn> parameterDefinition,
IInterpetedOperation <IInterpetedAnyType>[] body,
InterpetedContext context,
IInterpetedScopeTemplate scope,
IMethodType methodType)
where TIn : IInterpetedAnyType
where TOut : IInterpetedAnyType
=> root => {
var item = new InterpetedMethod <TIn, TOut>(parameterDefinition, body, context, scope, methodType, root);
return(new RunTimeAnyRootEntry(item, methodType));
};
public InterpetedMethod(
InterpetedMemberDefinition parameterDefinition,
IInterpetedOperation[] body,
InterpetedContext context,
IInterpetedScopeTemplate scope,
IMethodType methodType,
IRunTimeAnyRoot root) : base(root)
{
ParameterDefinition = parameterDefinition ?? throw new System.ArgumentNullException(nameof(parameterDefinition));
Body = body ?? throw new System.ArgumentNullException(nameof(body));
Context = context ?? throw new System.ArgumentNullException(nameof(context));
Scope = scope ?? throw new System.ArgumentNullException(nameof(scope));
MethodType = methodType ?? throw new ArgumentNullException(nameof(methodType));
}
public InterpetedImplementation(
InterpetedMemberDefinition parameterDefinition,
InterpetedMemberDefinition contextDefinition,
IInterpetedOperation[] body,
InterpetedContext context,
IInterpetedScopeTemplate scope,
IMethodType implementationType,
IRunTimeAnyRoot root) : base(root)
{
ParameterDefinition = parameterDefinition ?? throw new ArgumentNullException(nameof(parameterDefinition));
this.contextDefinition = contextDefinition ?? throw new ArgumentNullException(nameof(contextDefinition));
Body = body ?? throw new ArgumentNullException(nameof(body));
InterpetedContext = context ?? throw new ArgumentNullException(nameof(context));
Scope = scope ?? throw new ArgumentNullException(nameof(scope));
ImplementationType = implementationType ?? throw new ArgumentNullException(nameof(implementationType));
}
public Dictionary <string, ExpressionResult> ParseGqlCall(string fieldName, EntityGraphQLParser.GqlCallContext context)
{
var argList = context.gqlarguments.children.Where(c => c.GetType() == typeof(EntityGraphQLParser.GqlargContext)).Cast <EntityGraphQLParser.GqlargContext>();
IMethodType methodType = schemaProvider.GetFieldOnContext(currentExpressionContext, fieldName, claims);
var args = argList.ToDictionary(a => a.gqlfield.GetText(), a =>
{
var argName = a.gqlfield.GetText();
if (!methodType.Arguments.ContainsKey(argName))
{
throw new EntityGraphQLCompilerException($"No argument '{argName}' found on field '{methodType.Name}'");
}
var r = ParseGqlarg(methodType, a);
return(r);
});
return(args);
}
public override ExpressionResult VisitGqlcall(EntityGraphQLParser.GqlcallContext context)
{
var fieldName = context.method.GetText();
var argList = context.gqlarguments.children.Where(c => c.GetType() == typeof(EntityGraphQLParser.GqlargContext)).Cast <EntityGraphQLParser.GqlargContext>();
IMethodType methodType = schemaProvider.GetFieldType(currentContext, fieldName, argList.Select(a => a.gqlfield.GetText().ToLower()));
var args = argList.ToDictionary(a => a.gqlfield.GetText(), a => {
fieldArgumentContext = methodType;
var r = VisitGqlarg(a);
fieldArgumentContext = null;
return(r);
}, StringComparer.OrdinalIgnoreCase);
if (schemaProvider.HasMutation(fieldName))
{
return(MakeMutationExpression(fieldName, (MutationType)methodType, args));
}
return(MakeFieldExpression(fieldName, args));
}
private ExpressionResult BuildEntityQueryExpression(IMethodType fieldArgumentContext, string fieldName, string argName, string query)
{
if (string.IsNullOrEmpty(query))
{
return(null);
}
var prop = ((Field)fieldArgumentContext).ArgumentTypesObject.GetType().GetProperties().FirstOrDefault(p => p.Name == argName && p.PropertyType.GetGenericTypeDefinition() == typeof(EntityQueryType <>));
if (prop == null)
{
throw new EntityGraphQLCompilerException($"Can not find argument {argName} of type EntityQuery on field {fieldName}");
}
var eqlt = prop.GetValue(((Field)fieldArgumentContext).ArgumentTypesObject) as BaseEntityQueryType;
var contextParam = Expression.Parameter(eqlt.QueryType, $"q_{eqlt.QueryType.Name}");
ExpressionResult expressionResult = EntityQueryCompiler.CompileWith(query, contextParam, schemaProvider, claims, methodProvider, variables).ExpressionResult;
expressionResult = (ExpressionResult)Expression.Lambda(expressionResult.Expression, contextParam);
return(expressionResult);
}
public override ExpressionResult VisitGqlcall(EntityGraphQLParser.GqlcallContext context)
{
var fieldName = context.method.GetText();
var argList = context.gqlarguments.children.Where(c => c.GetType() == typeof(EntityGraphQLParser.GqlargContext)).Cast <EntityGraphQLParser.GqlargContext>();
IMethodType methodType = schemaProvider.GetFieldOnContext(currentContext, fieldName, claims);
var args = argList.ToDictionary(a => a.gqlfield.GetText(), a => {
var argName = a.gqlfield.GetText();
if (!methodType.Arguments.ContainsKey(argName))
{
throw new EntityGraphQLCompilerException($"No argument '{argName}' found on field '{methodType.Name}'");
}
fieldArgumentContext = methodType;
var r = VisitGqlarg(a);
fieldArgumentContext = null;
return(r);
});
if (schemaProvider.HasMutation(fieldName))
{
return(MakeMutationExpression((MutationType)methodType, args));
}
return(MakeFieldExpression(fieldName, args));
}
public static Func <IRunTimeAnyRoot, RunTimeAnyRootEntry> ExternalMethodIntention(Func <IInterpetedAnyType, IInterpetedAnyType> value, IMethodType methodType)
=> root =>
{
var item = new InterpetedExternalMethod(value, methodType, root);
var res = new RunTimeAnyRootEntry(item, methodType);
return(res);
};
public void Init(Func <TIn, TOut> backing, IMethodType methodType)
{
Backing = backing ?? throw new ArgumentNullException(nameof(backing));
MethodType = methodType ?? throw new ArgumentNullException(nameof(methodType));
}
public static Func <IRunTimeAnyRoot, RunTimeAnyRootEntry> ExternalMethodIntention <TIn, TOut>(Func <TIn, TOut> value, IMethodType methodType)
where TIn : IInterpetedAnyType
where TOut : IInterpetedAnyType
=> root =>
{
var item = new InterpetedExternalMethod <TIn, TOut>(value, methodType, root);
var res = new RunTimeAnyRootEntry(item, methodType);
return(res);
};
public static IInterpetedMethod <TIn, TOut> ExternalMethod <TIn, TOut>(Func <TIn, TOut> backing, IMethodType methodType)
where TIn : IInterpetedAnyType
where TOut : IInterpetedAnyType
=> new RunTimeAnyRoot(new Func <IRunTimeAnyRoot, RunTimeAnyRootEntry>[] { ExternalMethodIntention(backing, methodType) }).Has <IInterpetedMethod <TIn, TOut> >();
private static List <InputValue> BuildArgs(ISchemaProvider schema, CombinedMapping combinedMapping, IMethodType field)
{
var args = new List <InputValue>();
foreach (var arg in field.Arguments)
{
Type clrType = arg.Value.Type.GetNonNullableType();
var gqlTypeName = clrType.IsEnumerableOrArray() ? clrType.GetEnumerableOrArrayType().Name : clrType.Name;
var type = BuildType(schema, clrType, gqlTypeName, combinedMapping, true);
args.Add(new InputValue
{
Name = arg.Key,
Type = type,
DefaultValue = null,
Description = null,
});
}
return(args);
}
private static List <Models.InputValue> BuildArgs(ISchemaProvider schema, IReadOnlyDictionary <Type, string> combinedMapping, IMethodType field)
{
var args = new List <Models.InputValue>();
foreach (var arg in field.Arguments)
{
var gqlTypeName = arg.Value.Type.IsEnumerableOrArray() ? arg.Value.Type.GetEnumerableOrArrayType().Name : arg.Value.Type.Name;
var type = BuildType(schema, arg.Value.Type, gqlTypeName, combinedMapping);
args.Add(new Models.InputValue
{
Name = arg.Key,
Type = type,
DefaultValue = null,
Description = null,
});
}
return(args);
}
public bool CanExecute(IMethodType methodType)
{
return(this.IsPermitted(methodType, Operations.Execute));
}
public static IInterpetedMethod ExternalMethod(Func <IInterpetedAnyType, IInterpetedAnyType> backing, IMethodType methodType)
=> new RunTimeAnyRoot(new Func <IRunTimeAnyRoot, RunTimeAnyRootEntry>[] { ExternalMethodIntention(backing, methodType) }).Has <IInterpetedMethod>();
private static object GetGqlReturnType(IMethodType field, ISchemaProvider schema, IReadOnlyDictionary <Type, string> combinedMapping)
{
return(ClrToGqlType(field.ReturnTypeNotNullable, field.ReturnElementTypeNullable, field.ReturnTypeClr, schema, combinedMapping));
}
public InterpetedExternalMethod(Func <IInterpetedAnyType, IInterpetedAnyType> backing, IMethodType methodType, IRunTimeAnyRoot root) : base(root)
{
this.Backing = backing ?? throw new ArgumentNullException(nameof(backing));
this.MethodType = methodType ?? throw new ArgumentNullException(nameof(methodType));
}
public bool CanExecute(IMethodType methodType) => this.IsPermitted(methodType, Operations.Execute);
public Method(SessionObject @object, IMethodType methodType)
{
this.Object = @object;
this.MethodType = methodType;
}
