public static IReadOnlyDictionary <SelectionSetNode, PSS> Compile(
ISchema schema,
FragmentCollection fragments,
OperationDefinitionNode operation,
IEnumerable <ISelectionSetOptimizer>?optimizers = null)
{
var selectionSets = new Dictionary <SelectionSetNode, PSS>();
void Register(PreparedSelectionSet s) => selectionSets[s.SelectionSet] = s;
SelectionSetNode selectionSet = operation.SelectionSet;
ObjectType typeContext = schema.GetOperationType(operation.Operation);
var root = new PSS(operation.SelectionSet);
Register(root);
var collector = new OperationCompiler(schema, fragments);
collector.Visit(
selectionSet,
typeContext,
new Stack <IObjectField>(),
root,
Register,
new Dictionary <ISelectionNode, SelectionIncludeCondition>(),
optimizers?.ToList() ?? new List <ISelectionSetOptimizer>());
return(selectionSets);
}
private OperationCompiler(
ISchema schema,
FragmentCollection fragments)
{
_schema = schema;
_fragments = fragments;
}
public void Object_Field_Visibility_Is_Correctly_Inherited_2()
{
// arrange
var variables = new Mock <IVariableValueCollection>();
variables.Setup(t => t.GetVariable <bool>(It.IsAny <NameString>()))
.Returns((NameString name) => name.Equals("v"));
ISchema schema = SchemaBuilder.New()
.AddStarWarsTypes()
.Create();
ObjectType droid = schema.GetType <ObjectType>("Droid");
DocumentNode document = Utf8GraphQLParser.Parse(
@"query foo($v: Boolean, $q: Boolean) {
hero(episode: EMPIRE) @include(if: $v) {
name @include(if: $q)
}
... on Query {
hero(episode: EMPIRE) {
id
}
}
... @include(if: $v) {
hero(episode: EMPIRE) {
height
}
}
}");
OperationDefinitionNode operation =
document.Definitions.OfType <OperationDefinitionNode>().Single();
var fragments = new FragmentCollection(schema, document);
// act
IReadOnlyDictionary <SelectionSetNode, PreparedSelectionSet> selectionSets =
OperationCompiler.Compile(schema, fragments, operation);
// assert
var op = new PreparedOperation(
"abc",
document,
operation,
schema.QueryType,
selectionSets);
IPreparedSelectionList rootSelections =
op.RootSelectionSet.GetSelections(op.RootSelectionSet.GetPossibleTypes().First());
IPreparedSelectionList droidSelections =
op.GetSelections(rootSelections[0].SelectionSet !, droid);
Assert.Collection(
droidSelections.Where(t => t.IsIncluded(variables.Object)),
t => Assert.Equal("id", t.ResponseName),
t => Assert.Equal("height", t.ResponseName));
op.Print().MatchSnapshot();
}
public void Field_Is_Visible_When_One_Selection_Is_Visible_3()
{
// arrange
var variables = new Mock <IVariableValueCollection>();
variables.Setup(t => t.GetVariable <bool>(It.IsAny <NameString>()))
.Returns((NameString name) =>
{
return(name.Equals("q"));
});
ISchema schema = SchemaBuilder.New()
.AddStarWarsTypes()
.Create();
ObjectType droid = schema.GetType <ObjectType>("Droid");
DocumentNode document = Utf8GraphQLParser.Parse(
@"query foo($v: Boolean, $q: Boolean){
hero(episode: EMPIRE) {
name @include(if: $v)
... abc @include(if: $q)
}
}
fragment abc on Droid {
name
}");
OperationDefinitionNode operation =
document.Definitions.OfType <OperationDefinitionNode>().Single();
var fragments = new FragmentCollection(schema, document);
// act
IReadOnlyDictionary <SelectionSetNode, PreparedSelectionSet> selectionSets =
OperationCompiler.Compile(schema, fragments, operation);
// assert
var op = new PreparedOperation(
"abc",
document,
operation,
schema.QueryType,
selectionSets);
IPreparedSelectionList rootSelections =
op.RootSelectionSet.GetSelections(op.RootSelectionSet.GetPossibleTypes().First());
IPreparedSelectionList droidSelections =
op.GetSelections(rootSelections[0].SelectionSet !, droid);
Assert.Equal("name", droidSelections[0].ResponseName);
Assert.True(droidSelections[0].IsConditional);
Assert.True(droidSelections[0].IsIncluded(variables.Object));
Assert.True(droidSelections.IsConditional);
}
public void Prepare_Inline_Fragment()
{
// arrange
ISchema schema = SchemaBuilder.New()
.AddStarWarsTypes()
.Create();
DocumentNode document = Utf8GraphQLParser.Parse(
@"{
hero(episode: EMPIRE) {
name
... on Droid {
primaryFunction
}
... on Human {
homePlanet
}
}
}");
OperationDefinitionNode operation =
document.Definitions.OfType <OperationDefinitionNode>().Single();
var fragments = new FragmentCollection(schema, document);
// act
IReadOnlyDictionary <SelectionSetNode, PreparedSelectionSet> selectionSets =
OperationCompiler.Compile(schema, fragments, operation);
// assert
IPreparedSelection hero = selectionSets[operation.SelectionSet].GetSelections(schema.QueryType).Single();
Assert.Equal("hero", hero.ResponseName);
Assert.Collection(
selectionSets[hero.SelectionSet].GetSelections(schema.GetType <ObjectType>("Droid")),
selection => Assert.Equal("name", selection.ResponseName),
selection => Assert.Equal("primaryFunction", selection.ResponseName));
Assert.Collection(
selectionSets[hero.SelectionSet].GetSelections(schema.GetType <ObjectType>("Human")),
selection => Assert.Equal("name", selection.ResponseName),
selection => Assert.Equal("homePlanet", selection.ResponseName));
var op = new PreparedOperation(
"abc",
document,
operation,
schema.QueryType,
selectionSets);
op.Print().MatchSnapshot();
}
public void Field_Based_Optimizers()
{
// arrange
var variables = new Mock <IVariableValueCollection>();
variables.Setup(t => t.GetVariable <bool>(It.IsAny <NameString>()))
.Returns((NameString name) => name.Equals("v"));
ISchema schema = SchemaBuilder.New()
.AddQueryType(d => d
.Name("Query")
.Field("root")
.Resolve(new Foo())
.UseOptimizer(new SimpleOptimizer()))
.Create();
DocumentNode document = Utf8GraphQLParser.Parse(
@"{
root {
bar {
text
}
}
}");
OperationDefinitionNode operation =
document.Definitions.OfType <OperationDefinitionNode>().Single();
var fragments = new FragmentCollection(schema, document);
var optimizers = new List <NoopOptimizer> {
new NoopOptimizer()
};
// act
IReadOnlyDictionary <SelectionSetNode, PreparedSelectionSet> selectionSets =
OperationCompiler.Compile(schema, fragments, operation, optimizers);
// assert
var op = new PreparedOperation(
"abc",
document,
operation,
schema.QueryType,
selectionSets);
op.Print().MatchSnapshot();
}
public void Prepare_Fragment_Definition()
{
// arrange
ISchema schema = SchemaBuilder.New()
.AddStarWarsTypes()
.Create();
DocumentNode document = Utf8GraphQLParser.Parse(
@"{
hero(episode: EMPIRE) {
name
... abc
... def
}
}
fragment abc on Droid {
primaryFunction
}
fragment def on Human {
homePlanet
}
");
OperationDefinitionNode operation =
document.Definitions.OfType <OperationDefinitionNode>().Single();
var fragments = new FragmentCollection(schema, document);
// act
IReadOnlyDictionary <SelectionSetNode, PreparedSelectionSet> selectionSets =
OperationCompiler.Compile(schema, fragments, operation);
// assert
var op = new PreparedOperation(
"abc",
document,
operation,
schema.QueryType,
selectionSets);
op.Print().MatchSnapshot();
}