public void Invocations_MethodCallOnFieldAccess()
{
const string code = @"
namespace Namespace
{
public class Class1
{
private string Field;
public void Foo()
{
var x = Field.ToLower();
// %0 := __id [ this.Field ]
// %1 := string.ToLower() [ %0 ]
// x := __id [ %1 ]
}
}
}";
UcfgVerifier.VerifyInstructions(code, "Foo");
}
public void Invocation_ArgumentIsMethodResult()
{
const string code = @"
namespace Ns1
{
public class Class1
{
public void Foo()
{
Add(GetData());
// %0 := Ns1.Class1.GetData() [ this ]
// %1 := Ns1.Class1.Add(int) [ this %0 ]
}
public int GetData() => 1;
public void Add(int value) { }
}
}";
UcfgVerifier.VerifyInstructions(code, "Foo");
}
public void Void_Method_Simple()
{
const string code = @"
using System;
public class Class1
{
public void Foo(string s)
{
Console.WriteLine(s); // Simple (Next:Exit) | Block#0(Jump:#1)
// Exit | Block#1(Ret)
}
}";
var ucfg = UcfgVerifier.GetUcfgForMethod(code, "Foo");
ucfg.Entries.Should().BeEquivalentTo(new[] { "0" });
TestHelper.AssertCollection(ucfg.BasicBlocks,
b => ValidateJmpBlock(b, expectedId: "0", expectedJumps: new[] { "1" }),
b => ValidateRetBlock(b, expectedId: "1", expectedReturnExpression: ConstValue)
);
}
public void Ctor_Calling_Base()
{
var code = @"
class Foo : Bar
{
// The ctor initializer instructions are executed before the ctor body
public Foo() : base(""a"" + 5.ToString()) // %0 := __concat [ const const ]
// %1 := Bar.Bar(string) [ this %0 ]
{
var x = 5; // x := __id [ const ]
}
}
class Bar
{
public Bar(string s) {}
}
";
UcfgVerifier.VerifyInstructions(code, "Foo", isCtor: true);
}
public void SpecialBlocks_Foreach()
{
const string code = @"
public class Class1
{
public void Foo(string[] items)
{
foreach (var item in items) // Foreach(BinaryBranch) | Basic#0
// BinaryBranch(BinaryBranch,Exit) | Basic#1(Jump:#1,#2)
{
}
} // Exit | Basic#2(Ret)
}";
var ucfg = UcfgVerifier.GetUcfgForMethod(code, "Foo");
TestHelper.AssertCollection(ucfg.BasicBlocks,
b => ValidateJmpBlock(b, expectedId: "0", expectedJumps: new[] { "1" }),
b => ValidateJmpBlock(b, expectedId: "1", expectedJumps: new[] { "1", "2" }),
b => ValidateRetBlock(b, expectedId: "2", expectedReturnExpression: ConstValue)
);
}
public void Assignments_Array_Set_FieldPropertyMethodNew()
{
const string code = @"
using System.Collections.Generic;
namespace Namespace
{
public class Class1
{
public void Foo()
{
var a = new object[1];
// %0 := new object[]
// a := __id [ %0 ]
a[0] = Field;
// %1 := __id [ this.Field ]
// %2 := __arraySet [ a %1 ]
a[0] = Property;
// %3 := Namespace.Class1.Property.get [ this ]
// %4 := __arraySet [ a %3 ]
a[0] = GetData();
// %5 := Namespace.Class1.GetData() [ this ]
// %6 := __arraySet [ a %5 ]
a[0] = new Class1();
// %7 := new Namespace.Class1
// %8 := Namespace.Class1.Class1() [ %7 ]
// %9 := __arraySet [ a %7 ]
}
private string Field = null;
private string Property { get; } = null;
private object GetData() { return null; }
}
}";
UcfgVerifier.VerifyInstructions(code, "Foo");
}
public void ArrayCreation_New_AssignToProperty()
{
const string code = @"
namespace Namespace
{
public class Class1
{
public void Foo(string data)
{
// Initialization in assignent
IntProperty = new int[] { 0 };
// %0 := new int[]
// %1 := __arraySet [ %0 const ]
// %2 := Namespace.Class1.IntProperty.set [ this %0 ]
StringProperty = new string[] { data };
// %3 := new string[]
// %4 := __arraySet [ %3 data ]
// %5 := Namespace.Class1.StringProperty.set [ this %3 ]
Class1Property = new Class1[3];
// %6 := new Namespace.Class1[]
// %7 := Namespace.Class1.Class1Property.set [ this %6 ]
Class1Property = new Class1[2] { null, this };
// %8 := new Namespace.Class1[]
// %9 := __arraySet [ %8 const ]
// %10 := __arraySet [ %8 this ]
// %11 := Namespace.Class1.Class1Property.set [ this %8 ]
}
private int[] IntProperty { get; set;}
public string[] StringProperty { get; set; }
public Class1[] Class1Property { get; set; }
}
}";
UcfgVerifier.VerifyInstructions(code, "Foo");
}
public void Assignments_Simple()
{
const string code = @"
namespace Namespace
{
public class Class1
{
public static string staticField;
private string field;
public void Foo(string s)
{
string a, b;
a = s;
// a := __id [ s ]
a = ""boo"";
// a := __id [ const ]
int i;
i = 5;
// i := __id [ const ]
field = s;
// this.field := __id [ s ]
this.field = s;
// this.field := __id [ s ]
staticField = s;
// Namespace.Class1.staticField := __id [ s ]
Class1.staticField = s;
// Namespace.Class1.staticField := __id [ s ]
}
}
}";
UcfgVerifier.VerifyInstructions(code, "Foo");
}
public void SpecialBlocks_Using_Statement()
{
const string code = @"
public class Class1
{
public void Foo(Func<IDisposable> factory)
{
using (var x = factory()) // Jump(Next:UsingEnd) | Basic#0(Jump:#1)
{
// UsingEnd(Next:Exit) | Basic#1(Jump:#2)
}
// Exit | Basic#2(Ret:Const)
}
}";
var ucfg = UcfgVerifier.GetUcfgForMethod(code, "Foo");
TestHelper.AssertCollection(ucfg.BasicBlocks,
b => ValidateJmpBlock(b, expectedId: "0", expectedJumps: new[] { "1" }),
b => ValidateJmpBlock(b, expectedId: "1", expectedJumps: new[] { "2" }),
b => ValidateRetBlock(b, expectedId: "2", expectedReturnExpression: ConstValue)
);
}
public void SpecialBlocks_For()
{
const string code = @"
public class Class1
{
public void Foo(string[] items)
{
for (int i = 0; i < items.Length; i++) // For(BinaryBranch) | Basic#0(Jump:#1)
// BinaryBranch(Simple,Exit) | Basic#1(Jump:#2,#3)
{ // Simple(BinaryBranch) | Basic#2(Jump:#1)
}
} // Exit | Basic#3(Ret)
}";
var ucfg = UcfgVerifier.GetUcfgForMethod(code, "Foo");
TestHelper.AssertCollection(ucfg.BasicBlocks,
b => ValidateJmpBlock(b, expectedId: "0", expectedJumps: new[] { "1", }),
b => ValidateJmpBlock(b, expectedId: "1", expectedJumps: new[] { "2", "3" }),
b => ValidateJmpBlock(b, expectedId: "2", expectedJumps: new[] { "1" }),
b => ValidateRetBlock(b, expectedId: "3", expectedReturnExpression: ConstValue)
);
}
public void Invocations_Explicit_Generic_Interfaces()
{
const string code = @"
namespace Namespace
{
public class Class1
{
public void Foobar(string s, IBar b1, Bar b2, IBar<string> b3)
{
b1.Foo(s);
// %0 := Namespace.IBar.Foo<T>(T) [ b1 s ]
b2.Foo(s);
// %1 := Namespace.Bar.Foo<T>(T) [ b2 s ]
b2.Fooooo(s);
// %2 := Namespace.Bar.Fooooo(string) [ b2 s ]
b3.Fooooo(s);
// %3 := Namespace.IBar<T>.Fooooo(T) [ b3 s ]
}
}
public class Bar : IBar, IBar<string>
{
void IBar.Foo<T>(T s) { }
public void Foo<T>(T s) { }
public void Fooooo(string s) { }
void IBar<string>.Fooooo(string s) { }
}
public interface IBar
{
void Foo<T>(T s);
}
public interface IBar<T>
{
void Fooooo(T s);
}
}";
UcfgVerifier.VerifyInstructions(code, "Foobar");
}
public void Serialize_Some_Method()
{
var code = @"
class C
{
void Foo(string a, string b)
{
var x = a + b;
if (true)
{
Bar(a, 1);
}
else
{
Bar(b, 2);
}
}
void Bar(string a, int x) { }
}
";
var dot = UcfgSerializer.Serialize(UcfgVerifier.GetUcfgForMethod(code, "Foo"));
dot.Should().BeIgnoringLineEndings(@"digraph ""C.Foo(string, string)"" {
ENTRY [shape=record label=""{ENTRY|a|b}""]
ENTRY -> 0
0 [shape=record label=""{BLOCK:#0|%0 := __concat [ a, b ]|x := __id [ %0 ]|TERMINATOR: JUMP: #1, #2}""]
0 -> 1
0 -> 2
1 [shape=record label=""{BLOCK:#1|%1 := C.Bar(string, int) [ this, a, CONST ]|TERMINATOR: JUMP: #3}""]
1 -> 3
2 [shape=record label=""{BLOCK:#2|%2 := C.Bar(string, int) [ this, b, CONST ]|TERMINATOR: JUMP: #3}""]
2 -> 3
3 [shape=record label=""{BLOCK:#3|TERMINATOR: RET: CONST}""]
3 -> END
END [shape=record label=""{END}""]
}
");
}
public void Annotation_EntryMethod_AttributeOnStringParameterIsHandled()
{
const string code = @"
namespace Namespace
{
using System.Web.Mvc;
public class FromBodyAttribute : System.Attribute { }
public class CartController : Controller
{
public object Remove([FromBody] string itemId)
{
var data = itemId;
// data := __id [ itemId ]
// %0 := __entrypoint [ itemId ]
// %1 := __annotate [ Namespace.FromBodyAttribute.FromBodyAttribute() itemId ]
// itemId := __annotation [ %1 ]
return null;
}
}
}";
var ucfg = UcfgVerifier.VerifyInstructions(code, "Remove");
var entryPoints = UcfgVerifier.GetEntryPointInstructions(ucfg);
entryPoints.Count.Should().Be(1);
// Entry point location should be the "Remove" token.
// Line numbers are 1-based, offsets are 0-based
var actualLocation = entryPoints[0].Assigncall.Location;
actualLocation.StartLine.Should().Be(10);
actualLocation.EndLine.Should().Be(10);
actualLocation.StartLineOffset.Should().Be(22);
actualLocation.EndLineOffset.Should().Be(28);
}
public void Serialize_Some_Method()
{
var code = @"
class C
{
void Foo(string a, string b)
{
var x = a + b;
if (true)
{
Bar(a, 1);
}
else
{
Bar(b, 2);
}
}
void Bar(string a, int x) { }
}
";
var dot = UcfgSerializer.Serialize(UcfgVerifier.GetUcfgForMethod(code, "Foo"));
dot.Should().BeIgnoringLineEndings(@"digraph ""C.Foo(string, string)"" {
ENTRY [shape=record label=""{ENTRY|a|b}""]
ENTRY -> 0
0 [shape=record label=""{BLOCK:0|\{ \""name\"": \""%0\"" \} __concat a,b|\{ \""name\"": \""x\"" \} __id %0|TERMINATOR JUMP: 1, 2}""]
0 -> 1
0 -> 2
1 [shape=record label=""{BLOCK:1|\{ \""name\"": \""%1\"" \} C.Bar(string, int) _this_,a,\""\""\""\""|TERMINATOR JUMP: 3}""]
1 -> 3
2 [shape=record label=""{BLOCK:2|\{ \""name\"": \""%2\"" \} C.Bar(string, int) _this_,b,\""\""\""\""|TERMINATOR JUMP: 3}""]
2 -> 3
3 [shape=record label=""{BLOCK:3|TERMINATOR RET: \""\""\""\""}""]
3 -> END
END [shape=record label=""{END}""]
}
");
}
public void Void_Method_Branch1()
{
const string code = @"
using System;
public class Class1
{
public void Foo(string s)
{
if (true) // Branch (Next:Jump,Exit) | Block#0(Jump:#1,#2)
return; // Jump (Next:Exit) | Block#1(Ret)
// Exit | Block#2(Ret)
}
}";
var ucfg = UcfgVerifier.GetUcfgForMethod(code, "Foo");
ucfg.Entries.Should().BeEquivalentTo(new[] { "0" });
TestHelper.AssertCollection(ucfg.BasicBlocks,
b => ValidateJmpBlock(b, expectedId: "0", expectedJumps: new[] { "1", "2" }),
b => ValidateRetBlock(b, expectedId: "1", expectedReturnExpression: ConstValue),
b => ValidateRetBlock(b, expectedId: "2", expectedReturnExpression: ConstValue)
);
}
public void Assignments_Array_Get()
{
const string code = @"
namespace Namespace
{
public class Class1
{
public void Foo(string s, string[] a, string[][] jagged, string[,] multi)
{
s = a[0];
// %0 := __arrayGet [ a ]
// s := __id [ %0 ]
s = ((a[0]));
// %1 := __arrayGet [ a ]
// s := __id [ %1 ]
Bar(a[0]);
// %2 := __arrayGet [ a ]
// %3 := Namespace.Class1.Bar(string) [ this %2 ]
s = jagged[0][0];
// %4 := __arrayGet [ jagged ]
// %5 := __arrayGet [ %4 ]
// s := __id [ %5 ]
s = multi[0, 0];
// %6 := __arrayGet [ multi ]
// s := __id [ %6 ]
}
public void Bar(string s) {}
}
}";
UcfgVerifier.VerifyInstructions(code, "Foo");
}
public void Pointers()
{
const string code = @"
using System;
namespace Namespace
{
public class Class1
{
IntPtr ptrField;
UIntPtr uPtrField;
public void Foo(IntPtr ptrParam, UIntPtr uPtrParam)
{
int x = 100;
// x := __id [ const ]
int *ptr = &x;
// ptr := __id [ const ]
Console.WriteLine((int)ptr);
// %0 := __id [ ptr ]
// %1 := System.Console.WriteLine(int) [ System.Console %0 ]
Console.WriteLine(*ptr);
// %2 := System.Console.WriteLine(int) [ System.Console const ]
ptrField = ptrParam;
// this.ptrField := __id [ const ]
uPtrField = uPtrParam;
// this.uPtrField := __id [ const ]
}
}
}";
UcfgVerifier.VerifyInstructions(code, "Foo");
}
public void Throw_Exception()
{
const string code = @"
public class Class1
{
public string Foo(string s)
{
if (true) // Branch(Jump,Exit) | Basic#0(Jump:#1,#2)
{
throw new Exception(); // Jump(Exit) | Basic#1(Jump:#3)
}
return s; // Jump(Exit) | Basic#2(Ret:s)
} // Exit | Basic#3(Ret:Const)
}";
var ucfg = UcfgVerifier.GetUcfgForMethod(code, "Foo");
ucfg.Entries.Should().BeEquivalentTo(new[] { "0" });
TestHelper.AssertCollection(ucfg.BasicBlocks,
b => ValidateJmpBlock(b, expectedId: "0", expectedJumps: new[] { "1", "2" }),
b => ValidateJmpBlock(b, expectedId: "1", expectedJumps: "3"),
b => ValidateRetBlock(b, expectedId: "2", expectedReturnExpression: "s"),
b => ValidateRetBlock(b, expectedId: "3", expectedReturnExpression: ConstValue));
}
public void Bug171_CreationError_RegressionTest_UnexpectedMergedNamespaceSymbol()
{
// SimplCommerce\src\Modules\SimplCommerce.Module.PaymentPaypalExpress\Controllers\PaypalExpressController.cs :: GetAccessToken
// SimplCommerce\src\SimplCommerce.WebHost\Program.cs :: BuildWebHost2
// At: UcfgExpressionService.Create
// This code gives a similar repro, except with "SourceNamespaceSymbol" instead of
// "MergedNamespaceSymbol" (
const string code = @"
namespace Ns1
{
namespace Inner
{
public class Builder
{
public static Builder CreateDefaultBuilder() => null;
}
}
}
namespace Ns2
{
public class Class1
{
public void BuildWebHost2(string[] args)
{
Ns1.Inner.Builder.CreateDefaultBuilder();
// %0 := Ns1.Inner.Builder.CreateDefaultBuilder() [ Ns1.Inner.Builder ]
}
}
}";
UcfgVerifier.VerifyInstructions(code, "BuildWebHost2");
}
public void Invocations_MethodsWithDefaultParameters()
{
const string code = @"
namespace Namespace
{
public class Class1
{
public void Foo()
{
SendEmailAsync(""body"");
// %0 := Namespace.Class1.SendEmailAsync(string, bool) [ this const const ]
SendEmailAsync(""body"", isHtml: true);
// %1 := Namespace.Class1.SendEmailAsync(string, bool) [ this const const ]
SendEmailAsync(""body"", isHtml: false);
// %2 := Namespace.Class1.SendEmailAsync(string, bool) [ this const const ]
}
public System.Threading.Tasks.Task SendEmailAsync(string body, bool isHtml = false)
{ return null; }
}
}";
UcfgVerifier.VerifyInstructions(code, "Foo");
}
public void Assignments_Array_Set()
{
const string code = @"
using System.Collections.Generic;
namespace Namespace
{
public class Class1
{
public void Foo(string s, string[] a, string[][] jagged, string[,] multi)
{
a[0] = s;
// %0 := __arraySet [ a s ]
((a[0])) = s;
// %1 := __arraySet [ a s ]
jagged[0][0] = s;
// %2 := __arrayGet [ jagged ]
// %3 := __arraySet [ %2 s ]
multi[0, 0] = s;
// %4 := __arraySet [ multi s ]
((jagged[0]))[0] = s;
// %5 := __arrayGet [ jagged ]
// %6 := __arraySet [ %5 s ]
a[0] = a[1];
// %7 := __arrayGet [ a ]
// %8 := __arraySet [ a %7 ]
}
}
}";
UcfgVerifier.VerifyInstructions(code, "Foo");
}
public void ArrayCreation_New_AssignToVariable_Object()
{
const string code = @"
namespace Namespace
{
public class Class1
{
public void Foo(object data)
{
// All valid array syntaxes
object[] a1 = new object[3];
// %0 := new object[]
// a1 := __id [ %0 ]
object[] a2 = new object[2] { data, new Class1() };
// %1 := new object[]
// %2 := __arraySet [ %1 data ]
// %3 := new Namespace.Class1
// %4 := Namespace.Class1.Class1() [ %3 ]
// %5 := __arraySet [ %1 %3 ]
// a2 := __id [ %1 ]
object[] a3 = new object[] { new object() };
// %6 := new object[]
// %7 := new object
// %8 := object.Object() [ %7 ]
// %9 := __arraySet [ %6 %7 ]
// a3 := __id [ %6 ]
}
}
}";
object[] a = { 1, "", null, 2.0, new string[] { } };
UcfgVerifier.VerifyInstructions(code, "Foo");
}
public void ArrayCreation_New_AssignToVariable_String()
{
const string code = @"
namespace Namespace
{
public class Class1
{
public void Foo(string data)
{
// All valid array syntaxes except x = { data };
string[] a1 = new string[3];
// %0 := new string[]
// a1 := __id [ %0 ]
string[] a2 = new string[] { null };
// %1 := new string[]
// %2 := __arraySet [ %1 const ]
// a2 := __id [ %1 ]
string[] a3 = new string[2] { ""x"", data };
// %3 := new string[]
// %4 := __arraySet [ %3 const ]
// %5 := __arraySet [ %3 data ]
// a3 := __id [ %3 ]
string[] a4 = new[] { data };
// %6 := new string[]
// %7 := __arraySet [ %6 data ]
// a4 := __id [ %6 ]
}
}
}";
UcfgVerifier.VerifyInstructions(code, "Foo");
}
public void ControllerMethod_Contains_EntryPoint_And_Attributes()
{
const string code = @"
using System.ComponentModel;
using System.Web.Mvc;
public class Class1 : Controller
{
public class DummyAttribute : System.Attribute { }
private string field;
[HttpPost] // should be ignored
public void Foo([Description]string s, [Missing]string x,
[Dummy] int i, [DummyAttribute]string s2) {}
// %0 := __entrypoint [ s x const s2 ]
// %1 := __annotate [ System.ComponentModel.DescriptionAttribute.DescriptionAttribute() s ]
// s := __annotation [ %1 ]
// i is a const so the attribute is ignored
// the Missing attribute is unknown and is not included
// %2 := __annotate [ Class1.DummyAttribute.DummyAttribute() s2 ]
// s2 := __annotation [ %2 ]
}";
var ucfg = UcfgVerifier.VerifyInstructions(code, "Foo");
var entryPoints = UcfgVerifier.GetEntryPointInstructions(ucfg);
entryPoints.Count.Should().Be(1);
// Entry point location should be the "Foo" token.
// Line numbers are 1-based, offsets are 0-based
var actualLocation = entryPoints[0].Assigncall.Location;
actualLocation.StartLine.Should().Be(10);
actualLocation.EndLine.Should().Be(10);
actualLocation.StartLineOffset.Should().Be(16);
actualLocation.EndLineOffset.Should().Be(19);
}
public void ArrayCreation_New_AssignToVariable_Int()
{
const string code = @"
namespace Namespace
{
public class Class1
{
public void Foo(int data)
{
// All valid array syntaxes except x = { data };
int[] a1 = new int[3];
// %0 := new int[]
// a1 := __id [ %0 ]
int[] a2 = new int[] { 0 };
// %1 := new int[]
// %2 := __arraySet [ %1 const ]
// a2 := __id [ %1 ]
int[] a3 = new int[2] { 0, 1 };
// %3 := new int[]
// %4 := __arraySet [ %3 const ]
// %5 := __arraySet [ %3 const ]
// a3 := __id [ %3 ]
int[] a4 = new[] { 42 };
// %6 := new int[]
// %7 := __arraySet [ %6 const ]
// a4 := __id [ %6 ]
}
}
}";
UcfgVerifier.VerifyInstructions(code, "Foo");
}
public void AddAssignment_Property()
{
const string code = @"
namespace Namespace
{
public class Class1
{
public string fieldString;
public string PropertyString { get; set; }
public void Foo(string parameterString, string[] values)
{
var localString = ""foo"";
// localString := __id [ const ]
PropertyString += (((""foo"")));
// %0 := Namespace.Class1.PropertyString.get [ this ]
// %1 := __concat [ %0 const ]
// %2 := Namespace.Class1.PropertyString.set [ this %1 ]
PropertyString += localString;
// %3 := Namespace.Class1.PropertyString.get [ this ]
// %4 := __concat [ %3 localString ]
// %5 := Namespace.Class1.PropertyString.set [ this %4 ]
PropertyString += parameterString;
// %6 := Namespace.Class1.PropertyString.get [ this ]
// %7 := __concat [ %6 parameterString ]
// %8 := Namespace.Class1.PropertyString.set [ this %7 ]
PropertyString += fieldString;
// %9 := Namespace.Class1.PropertyString.get [ this ]
// %10 := __id [ this.fieldString ]
// %11 := __concat [ %9 %10 ]
// %12 := Namespace.Class1.PropertyString.set [ this %11 ]
PropertyString += PropertyString;
// %13 := Namespace.Class1.PropertyString.get [ this ]
// %14 := Namespace.Class1.PropertyString.get [ this ]
// %15 := __concat [ %13 %14 ]
// %16 := Namespace.Class1.PropertyString.set [ this %15 ]
PropertyString += PropertyString += PropertyString += ""123"";
// %17 := Namespace.Class1.PropertyString.get [ this ]
// %18 := Namespace.Class1.PropertyString.get [ this ]
// %19 := Namespace.Class1.PropertyString.get [ this ]
// %20 := __concat [ %19 const ]
// %21 := Namespace.Class1.PropertyString.set [ this %20 ]
// %22 := __concat [ %18 %21 ]
// %23 := Namespace.Class1.PropertyString.set [ this %22 ]
// %24 := __concat [ %17 %23 ]
// %25 := Namespace.Class1.PropertyString.set [ this %24 ]
values[0] += Passthrough(PropertyString += ""abc"");
// %26 := __arrayGet [ values ]
// %27 := Namespace.Class1.PropertyString.get [ this ]
// %28 := __concat [ %27 const ]
// %29 := Namespace.Class1.PropertyString.set [ this %28 ]
// %30 := Namespace.Class1.Passthrough(string) [ this %29 ]
// %31 := __concat [ %26 %30 ]
// %32 := __arraySet [ values %31 ]
}
public string Passthrough(string s) => s;
}
}";
UcfgVerifier.VerifyInstructions(code, "Foo");
}
public void AddAssignment_Field()
{
const string code = @"
namespace Namespace
{
public class Class1
{
public string fieldString;
public string PropertyString { get; set; }
public void Foo(string parameterString, string[] values)
{
var localString = ""foo"";
// localString := __id [ const ]
fieldString += (((""foo"")));
// %0 := __id [ this.fieldString ]
// %1 := __concat [ %0 const ]
// this.fieldString := __id [ %1 ]
fieldString += localString;
// %2 := __id [ this.fieldString ]
// %3 := __concat [ %2 localString ]
// this.fieldString := __id [ %3 ]
fieldString += parameterString;
// %4 := __id [ this.fieldString ]
// %5 := __concat [ %4 parameterString ]
// this.fieldString := __id [ %5 ]
fieldString += fieldString;
// %6 := __id [ this.fieldString ]
// %7 := __id [ this.fieldString ]
// %8 := __concat [ %6 %7 ]
// this.fieldString := __id [ %8 ]
fieldString += PropertyString;
// %9 := __id [ this.fieldString ]
// %10 := Namespace.Class1.PropertyString.get [ this ]
// %11 := __concat [ %9 %10 ]
// this.fieldString := __id [ %11 ]
fieldString += fieldString += fieldString += ""123"";
// %12 := __id [ this.fieldString ]
// %13 := __id [ this.fieldString ]
// %14 := __id [ this.fieldString ]
// %15 := __concat [ %14 const ]
// this.fieldString := __id [ %15 ]
// %16 := __id [ this.fieldString ]
// %17 := __concat [ %13 %16 ]
// this.fieldString := __id [ %17 ]
// %18 := __id [ this.fieldString ]
// %19 := __concat [ %12 %18 ]
// this.fieldString := __id [ %19 ]
values[0] += Passthrough(fieldString += ""abc"");
// %20 := __arrayGet [ values ]
// %21 := __id [ this.fieldString ]
// %22 := __concat [ %21 const ]
// this.fieldString := __id [ %22 ]
// %23 := Namespace.Class1.Passthrough(string) [ this this.fieldString ]
// %24 := __concat [ %20 %23 ]
// %25 := __arraySet [ values %24 ]
}
public string Passthrough(string s) => s;
}
}";
UcfgVerifier.VerifyInstructions(code, "Foo");
}
public void Assignments_Ctors()
{
const string code = @"
namespace Namespace
{
public class Class1
{
public static Class1 staticField;
public Class1 field;
public string Property { get; set; }
public Class1() { }
public Class1(string s) { }
public Class1(Class1 other) { }
public void Foo(string s)
{
Class1 c;
c = new Class1(s);
// %0 := new Namespace.Class1
// %1 := Namespace.Class1.Class1(string) [ %0 s ]
// c := __id [ %0 ]
c = new Class1();
// %2 := new Namespace.Class1
// %3 := Namespace.Class1.Class1() [ %2 ]
// c := __id [ %2 ]
c = new Class1(new Class1(s));
// %4 := new Namespace.Class1
// %5 := Namespace.Class1.Class1(string) [ %4 s ]
// %6 := new Namespace.Class1
// %7 := Namespace.Class1.Class1(Namespace.Class1) [ %6 %4 ]
// c := __id [ %6 ]
c = new Class1(s)
// %8 := new Namespace.Class1
// %9 := Namespace.Class1.Class1(string) [ %8 s ]
{
Property = s,
// %10 := Namespace.Class1.Property.set [ %8 s ]
};
// c := __id [ %8 ]
field = new Class1();
// %11 := new Namespace.Class1
// %12 := Namespace.Class1.Class1() [ %11 ]
// this.field := __id [ %11 ]
this.field = new Class1();
// %13 := new Namespace.Class1
// %14 := Namespace.Class1.Class1() [ %13 ]
// this.field := __id [ %13 ]
staticField = new Class1();
// %15 := new Namespace.Class1
// %16 := Namespace.Class1.Class1() [ %15 ]
// Namespace.Class1.staticField := __id [ %15 ]
Class1.staticField = new Class1();
// %17 := new Namespace.Class1
// %18 := Namespace.Class1.Class1() [ %17 ]
// Namespace.Class1.staticField := __id [ %17 ]
var other = new Class1();
// %19 := new Namespace.Class1
// %20 := Namespace.Class1.Class1() [ %19 ]
// other := __id [ %19 ]
other.field = this;
// other.field := __id [ this ]
}
}
}";
UcfgVerifier.VerifyInstructions(code, "Foo");
}
public void Assignments_Invocations()
{
const string code = @"
namespace Namespace
{
public class BaseClass
{
public void BaseMethod() {}
}
public class Class1 : BaseClass
{
public string field;
public void Foo(string s)
{
string a;
a = s.ToLower();
// %0 := string.ToLower() [ s ]
// a := __id [ %0 ]
a = (s + s).ToLower();
// %1 := __concat [ s s ]
// %2 := string.ToLower() [ %1 ]
// a := __id [ %2 ]
Bar(s.ToLower());
// %3 := string.ToLower() [ s ]
// %4 := Namespace.Class1.Bar(string) [ this %3 ]
a = string.IsNullOrEmpty(s);
// %5 := string.IsNullOrEmpty(string) [ string s ];
// a := __id [ %5 ]
a = A(B(C(s)));
// %6 := Namespace.Class1.C(string) [ this s ]
// %7 := Namespace.Class1.B(int) [ this %6 ]
// %8 := Namespace.Class1.A(int) [ this %7 ]
// a := __id [ %8 ]
int x;
x = O(s);
// %9 := Namespace.Class1.O(object) [ this s ]
// x := __id [ %9 ]
this.Bar(s);
// %10 := Namespace.Class1.Bar(string) [ this s ]
base.BaseMethod();
// %11 := Namespace.BaseClass.BaseMethod() [ this ]
var other = new Class1();
// %12 := new Namespace.Class1
// %13 := Namespace.Class1.Class1() [ %12 ]
// other := __id [ %12 ]
other.Bar(s);
// %14 := Namespace.Class1.Bar(string) [ other s ]
Bar(field);
// %15 := __id [ this.field ]
// %16 := Namespace.Class1.Bar(string) [ this %15 ]
Bar(other.field);
// %17 := __id [ other.field ]
// %18 := Namespace.Class1.Bar(string) [ this %17 ]
StaticMethod(s);
// %19 := Namespace.Class1.StaticMethod(string) [ Namespace.Class1 s ]
Class1.StaticMethod(s);
// %20 := Namespace.Class1.StaticMethod(string) [ Namespace.Class1 s ]
a = field;
// %21 := __id [ this.field ]
// a := __id [ %21 ]
}
public void Bar(string s) { }
public string A(int x) { return x.ToString(); }
public int B(int x) { return x; }
public int C(string s) { 5; }
public int O(object o) { 5; }
public static string StaticMethod(string s) { return s; }
}
}";
UcfgVerifier.VerifyInstructions(code, "Foo");
}
public void Assignments_Properties()
{
const string code = @"
namespace Namespace
{
public class Class1
{
public static string StaticProperty { get; set; }
public string Property { get; set; }
public int IntProperty { get; set; }
public object ObjectProperty { get; set; }
public string Foo(string s)
{
string a;
Property = s;
// %0 := Namespace.Class1.Property.set [ this s ]
a = Property;
// %1 := Namespace.Class1.Property.get [ this ]
// a := __id [ %1 ]
Property = Property;
// %2 := Namespace.Class1.Property.get [ this ]
// %3 := Namespace.Class1.Property.set [ this %2 ]
Foo(Property);
// %4 := Namespace.Class1.Property.get [ this ]
// %5 := Namespace.Class1.Foo(string) [ this %4 ]
Property = Foo(Property);
// %6 := Namespace.Class1.Property.get [ this ]
// %7 := Namespace.Class1.Foo(string) [ this %6 ]
// %8 := Namespace.Class1.Property.set [ this %7 ]
ObjectProperty = s;
// %9 := Namespace.Class1.ObjectProperty.set [ this s ]
ObjectProperty = 5;
// %10 := Namespace.Class1.ObjectProperty.set [ this const ]
var x = IntProperty = 5;
// %11 := Namespace.Class1.IntProperty.set [ this const ]
// x := __id [ %11 ]
this.Property = s;
// %12 := Namespace.Class1.Property.set [ this s ]
var other = new Class1();
// %13 := new Namespace.Class1
// %14 := Namespace.Class1.Class1() [ %13 ]
// other := __id [ %13 ]
other.Property = s;
// %15 := Namespace.Class1.Property.set [ other s ]
other.ObjectProperty = other.Property;
// %16 := Namespace.Class1.Property.get [ other ]
// %17 := Namespace.Class1.ObjectProperty.set [ other %16 ]
Class1.StaticProperty = s;
// %18 := Namespace.Class1.StaticProperty.set [ Namespace.Class1 s ]
StaticProperty = s;
// %19 := Namespace.Class1.StaticProperty.set [ Namespace.Class1 s ]
a = StaticProperty;
// %20 := Namespace.Class1.StaticProperty.get [ Namespace.Class1 ]
// a := __id [ %20 ]
a = Class1.StaticProperty;
// %21 := Namespace.Class1.StaticProperty.get [ Namespace.Class1 ]
// a := __id [ %21 ]
return s;
}
}
}";
UcfgVerifier.VerifyInstructions(code, "Foo");
}