public void TryCatchTypeBody()
{
var expected = LinqExpression.TryCatch(
LinqExpression.Constant(0L),
LinqExpression.Catch(
typeof(Exception),
LinqExpression.Constant(0L)));
using var g = new GraphEngine.Graph();
g.LoadFromString(@"
@prefix : <http://example.com/> .
:s
:tryBody _:zero ;
:tryHandlers (
[
:catchType [
:typeName ""System.Exception"" ;
] ;
:catchBody _:zero ;
]
) ;
.
_:zero
:constantValue 0 ;
.
");
var s = g.GetUriNode(":s");
var actual = Expression.Parse(s).LinqExpression;
Console.WriteLine(actual.GetDebugView());
actual.Should().Be(expected);
}
public void NewArrayInit()
{
var expected = LinqExpression.NewArrayInit(typeof(long), LinqExpression.Constant(0L));
using var g = new GraphEngine.Graph();
g.LoadFromString(@"
@prefix : <http://example.com/> .
:s
a :NewArrayInit ;
:newArrayType [
:typeName ""System.Int64"" ;
] ;
:newArrayExpressions (
[
:constantValue 0 ;
]
) ;
.
");
var s = g.GetUriNode(":s");
var actual = Expression.Parse(s).LinqExpression;
Console.WriteLine(actual.GetDebugView());
actual.Should().Be(expected);
}
public void Label()
{
var expected = LinqExpression.Label(
LinqExpression.Label(
typeof(int),
"target"),
LinqExpression.Parameter(
typeof(int)));
using var g = new GraphEngine.Graph();
g.LoadFromString(@"
@prefix : <http://example.com/> .
:s
:labelTarget [
:targetName ""target"" ;
:targetType _:int ;
] ;
:labelDefaultValue [
:parameterType _:int ;
] ;
.
_:int
:typeName ""System.Int32"" ;
.
");
var s = g.GetUriNode(":s");
var actual = Expression.Parse(s).LinqExpression;
Console.WriteLine(actual.GetDebugView());
actual.Should().Be(expected);
}
public void ConditionType()
{
var expected = LinqExpression.Condition(
LinqExpression.Parameter(typeof(bool)),
LinqExpression.Parameter(typeof(SampleClass)),
LinqExpression.Parameter(typeof(SampleDerivedClass)),
typeof(SampleClass));
using var g = new GraphEngine.Graph();
g.LoadFromString(@"
@prefix : <http://example.com/> .
:s
:conditionTest [:parameterType [:typeName ""System.Boolean"" ;]] ;
:conditionIfTrue [:parameterType _:C1] ;
:conditionIfFalse [:parameterType [:typeName ""GraphEngine.Tests.SampleDerivedClass, GraphEngine.Tests"" ;]] ;
:conditionType _:C1 ;
.
_:C1 :typeName ""GraphEngine.Tests.SampleClass, GraphEngine.Tests"" .
");
var s = g.GetUriNode(":s");
var actual = Expression.Parse(s).LinqExpression;
Console.WriteLine(actual.GetDebugView());
actual.Should().Be(expected);
}
public void ArrayIndex_index()
{
var expected = LinqExpression.ArrayIndex(
LinqExpression.Parameter(
typeof(int[])),
LinqExpression.Parameter(
typeof(int)));
using var g = new GraphEngine.Graph();
g.LoadFromString(@"
@prefix : <http://example.com/> .
:s
:arrayIndexArray [
:parameterType [
:typeName ""System.Int32[]"" ;
] ;
] ;
:arrayIndexIndex [
:parameterType [
:typeName ""System.Int32"" ;
] ;
] ;
.
");
var s = g.GetUriNode(":s");
var actual = Expression.Parse(s).LinqExpression;
Console.WriteLine(actual.GetDebugView());
actual.Should().Be(expected);
}
public void Assign()
{
using var g = new GraphEngine.Graph();
g.LoadFromString(@"
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix : <http://example.com/> .
@prefix xt: <http://example.com/ExpressionTypes/> .
:s
:binaryExpressionType xt:Assign ;
:binaryLeft [
:parameterType [
:typeName ""System.Int64"" ;
] ;
] ;
:binaryRight [
:constantValue 0;
] ;
.
");
var s = g.GetUriNode(":s");
var result = Expression.Parse(s).LinqExpression;
Console.WriteLine(result.GetDebugView());
}
public void POC()
{
using var g = new GraphEngine.Graph();
g.LoadFromString(@"
@prefix : <http://example.com/> .
@prefix xt: <http://example.com/ExpressionTypes/> .
:s
:blockExpressions (
[
:binaryExpressionType xt:Subtract ;
:binaryLeft [
:binaryExpressionType xt:Add ;
:binaryLeft [
:constantValue 1;
] ;
:binaryRight [
:constantValue 2;
] ;
] ;
:binaryRight [
:constantValue 3;
] ;
]
) ;
.
");
var s = g.GetUriNode(":s");
var result = Expression.Parse(s).LinqExpression;
Console.WriteLine(result.GetDebugView());
}
public void IfThenElse()
{
var param = LinqExpression.Parameter(typeof(bool));
var expected = LinqExpression.IfThenElse(param, param, param);
using var g = new GraphEngine.Graph();
g.LoadFromString(@"
@prefix : <http://example.com/> .
:s
a :IfThenElse ;
:conditionTest _:param ;
:conditionIfTrue _:param ;
:conditionIfFalse _:param ;
.
_:param
:parameterType [
:typeName ""System.Boolean"" ;
] ;
.
");
var s = g.GetUriNode(":s");
var actual = Expression.Parse(s).LinqExpression;
Console.WriteLine(actual.GetDebugView());
actual.Should().Be(expected);
}
public void EatYourOwnDogfood()
{
using var g = new GraphEngine.Graph();
g.LoadFromString(@"
@prefix : <http://example.com/> .
:s
:lambdaBody [
:callInstance _:g ;
:callMethodName ""Clear"" ;
] ;
:lambdaParameters (
_:g
) ;
.
_:g
:parameterType [
:typeName ""VDS.RDF.IGraph, dotNetRDF"" ;
] ;
.
");
var s = g.GetUriNode(":s");
var parsed = Expression.Parse(s).LinqExpression;
var lambdaExpression = (Linq.LambdaExpression)parsed;
var lambda = lambdaExpression.Compile();
Assert.AreEqual(g.Triples.Count, 12); // 8 explicit, 4 implicit
var result = lambda.DynamicInvoke(g);
Assert.AreEqual(g.Triples.Count, 0);
}
public void Lambda()
{
using var g = new GraphEngine.Graph();
g.LoadFromString(@"
@prefix : <http://example.com/> .
@prefix xt: <http://example.com/ExpressionTypes/> .
:s
:lambdaBody [
:binaryExpressionType xt:Add ;
:binaryLeft [
:constantValue 1;
] ;
:binaryRight [
:constantValue 2;
] ;
]
.
");
var s = g.GetUriNode(":s");
var result = (Linq.LambdaExpression)Expression.Parse(s).LinqExpression;
var a = result.Compile().DynamicInvoke();
Console.WriteLine(a);
}
public void TryFinally()
{
var expected = LinqExpression.TryFinally(
LinqExpression.Constant(0L),
LinqExpression.Constant(0L));
using var g = new GraphEngine.Graph();
g.LoadFromString(@"
@prefix : <http://example.com/> .
:s
:tryBody _:zero ;
:tryFinally _:zero ;
.
_:zero
:constantValue 0 ;
.
");
var s = g.GetUriNode(":s");
var actual = Expression.Parse(s).LinqExpression;
Console.WriteLine(actual.GetDebugView());
actual.Should().Be(expected);
}
public void All()
{
using var g = new GraphEngine.Graph();
g.LoadFromString(@"
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix : <http://example.com/> .
:s
:arrayIndexArray [
:parameterType [
:typeName ""System.Int32[]"" ;
] ;
] ;
:arrayIndexIndexes (
[
:parameterType [
:typeName ""System.Int32"" ;
] ;
]
[
:parameterType [
:typeName ""System.Int64"" ;
] ;
]
) ;
.
");
var s = g.GetUriNode(":s");
var aa = new Collection <Expression>(s, Vocabulary.ArrayIndexIndexes, Expression.Parse);
foreach (Parameter index in aa)
{
Console.WriteLine(index.Type.Name);
}
var item = new Parameter(s.Graph.CreateBlankNode());
var type = new GraphEngine.Type(s.Graph.CreateBlankNode());
type.Name = "X";
var typeA = new GraphEngine.Type(s.Graph.CreateBlankNode());
typeA.Name = "Y";
type.Arguments.Add(typeA);
item.Type = type;
aa.Add(item);
foreach (Parameter index in aa)
{
Console.WriteLine(index.Type.Name);
}
}
protected static void ShouldBe(string rdf, LinqExpression expected)
{
using var g = new GraphEngine.Graph();
g.LoadFromString(rdf);
var s = g.GetUriNode(":s");
var actual = Expression.Parse(s).LinqExpression;
Console.WriteLine(actual.GetDebugView());
actual.Should().Be(expected);
}
private static void ShouldRoundrip(LinqExpression original)
{
using var g = new GraphEngine.Graph();
var s = g.CreateBlankNode();
new SerialisingVisitor(s).Visit(original);
new CompressingTurtleWriter(WriterCompressionLevel.Medium).Save(g, Console.Out, true);
Console.WriteLine();
var processed = GraphEngine.Expression.Parse(s).LinqExpression;
Console.WriteLine(processed.GetDebugView());
processed.Should().Be(original);
}
public void ReasoningPOC()
{
using var g = new GraphEngine.Graph();
g.LoadFromEmbeddedResource("GraphEngine.Tests.Resources.Examples.FibonacciSequenceUntyped.ttl, GraphEngine.Tests");
var s = g.GetUriNode(new Uri("http://example.com/s"));
var expression = Expression.Parse(s).LinqExpression;
Console.WriteLine(expression.GetDebugView());
var lambda = LinqExpression.Lambda(expression);
var actual = lambda.Compile().DynamicInvoke();
Assert.AreEqual(21L, actual);
}
public void TryCatchVariableBodyFilter()
{
var expected = LinqExpression.TryCatch(
LinqExpression.Constant(0L),
LinqExpression.Catch(
LinqExpression.Parameter(
typeof(Exception)),
LinqExpression.Constant(0L),
LinqExpression.Equal(
LinqExpression.Constant(0L),
LinqExpression.Constant(0L))));
using var g = new GraphEngine.Graph();
g.LoadFromString(@"
@prefix : <http://example.com/> .
@prefix xt: <http://example.com/ExpressionTypes/> .
:s
:tryBody _:zero ;
:tryHandlers (
[
:catchVariable [
:parameterType [
:typeName ""System.Exception"" ;
] ;
] ;
:catchBody _:zero ;
:catchFilter [
:binaryExpressionType xt:Equal ;
:binaryLeft _:zero ;
:binaryRight _:zero ;
] ;
]
) ;
.
_:zero
:constantValue 0 ;
.
");
var s = g.GetUriNode(":s");
var actual = Expression.Parse(s).LinqExpression;
Console.WriteLine(actual.GetDebugView());
actual.Should().Be(expected);
}
public void NewWithoutArguments()
{
using var g = new GraphEngine.Graph();
g.LoadFromString(@"
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix : <http://example.com/> .
:s
:newType [
:typeName ""System.Text.StringBuilder"" ;
] ;
.
");
var s = g.GetUriNode(":s");
var result = Expression.Parse(s).LinqExpression;
Console.WriteLine(result.GetDebugView());
}
public void Empty()
{
var expected = LinqExpression.Empty();
using var g = new GraphEngine.Graph();
g.LoadFromString(@"
@prefix : <http://example.com/> .
:s
a :Empty ;
.
");
var s = g.GetUriNode(":s");
var actual = Expression.Parse(s).LinqExpression;
Console.WriteLine(actual.GetDebugView());
actual.Should().Be(expected);
}
public void Default()
{
var expected = LinqExpression.Default(typeof(byte));
using var g = new GraphEngine.Graph();
g.LoadFromString(@"
@prefix : <http://example.com/> .
:s
:defaultType [
:typeName ""System.Byte"" ;
] ;
.
");
var s = g.GetUriNode(":s");
var actual = Expression.Parse(s).LinqExpression;
Console.WriteLine(actual.GetDebugView());
actual.Should().Be(expected);
}
public void All()
{
var expected =
LinqExpression.Switch(
typeof(SampleClass),
LinqExpression.Constant(0L),
LinqExpression.Default(typeof(SampleDerivedClass)),
typeof(SampleClass).GetMethod("Equal"),
LinqExpression.SwitchCase(
LinqExpression.Default(typeof(SampleDerivedClass)),
LinqExpression.Constant(0L)));
using var g = new GraphEngine.Graph();
g.LoadFromString(@"
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix : <http://example.com/> .
:s
:switchType [
:typeName ""GraphEngine.Tests.SampleClass, GraphEngine.Tests"" ;
] ;
:switchSwitchValue _:zero ;
:switchDefaultBody [
:defaultType [
:typeName ""GraphEngine.Tests.SampleDerivedClass, GraphEngine.Tests"" ;
]
] ;
:switchCases (
[
:caseTestValues (
_:zero
) ;
:caseBody [
:defaultType [
:typeName ""GraphEngine.Tests.SampleDerivedClass, GraphEngine.Tests"" ;
]
] ;
]
) ;
:switchComparison [
:memberType [
:typeName ""GraphEngine.Tests.SampleClass, GraphEngine.Tests"" ;
] ;
:memberName ""Equal"" ;
] ;
.
_:zero
:constantValue 0 ;
.
");
var s = g.GetUriNode(":s");
var actual = Expression.Parse(s).LinqExpression;
actual.Should().Be(expected);
Console.WriteLine(actual.GetDebugView());
// Make sure custom type is used
Assert.AreEqual(typeof(SampleClass), actual.Type);
// Make sure custom comparison is used
Assert.ThrowsException <TargetInvocationException>(() => LinqExpression.Lambda(actual).Compile().DynamicInvoke());
}
public void Factorial()
{
var value = LinqExpression.Parameter(typeof(int));
var result = LinqExpression.Parameter(typeof(int));
var label = LinqExpression.Label(typeof(int));
var expected = LinqExpression.Block(
new[] { result },
LinqExpression.Assign(
result,
LinqExpression.Constant(1)),
LinqExpression.Loop(
LinqExpression.Condition(
LinqExpression.GreaterThan(
value,
LinqExpression.Constant(1)),
LinqExpression.MultiplyAssign(
result,
LinqExpression.PostDecrementAssign(
value)),
LinqExpression.Break(
label,
result),
typeof(void)),
label));
using var g = new GraphEngine.Graph();
g.LoadFromString(@"
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix : <http://example.com/> .
@prefix xt: <http://example.com/ExpressionTypes/> .
_:constantValue
:parameterType [
:typeName ""System.Int32"" ;
] ;
.
_:result
:parameterType [
:typeName ""System.Int32"" ;
] ;
.
_:label
:targetType [
:typeName ""System.Int32"" ;
] ;
.
_:one
:constantValue ""1""^^xsd:int ;
.
:s
:blockVariables (
_:result
) ;
:blockExpressions (
[
:binaryExpressionType xt:Assign ;
:binaryLeft _:result ;
:binaryRight _:one ;
]
[
:loopBody [
:conditionTest [
:binaryExpressionType xt:GreaterThan ;
:binaryLeft _:constantValue ;
:binaryRight _:one ;
] ;
:conditionIfTrue [
:binaryExpressionType xt:MultiplyAssign ;
:binaryLeft _:result ;
:binaryRight [
:unaryExpressionType xt:PostDecrementAssign ;
:unaryOperand _:constantValue ;
] ;
] ;
:conditionIfFalse [
a :Break ;
:gotoTarget _:label ;
:gotoValue _:result ;
] ;
:conditionType [
:typeName ""System.Void"" ;
] ;
] ;
:loopBreak _:label ;
]
) ;
.
");
var s = g.GetUriNode(":s");
var actual = Expression.Parse(s).LinqExpression;
Console.WriteLine(actual.GetDebugView());
actual.Should().Be(expected);
}