public void TestExpressionFunctionReturnTypeBinding()
{
const string src = "namespace MyNamespace" +
"{" +
" class MyClass" +
" {" +
" func Add(int a, int b) -> return new MyClass2()" +
" }" +
"" +
" class MyClass2" +
" {" +
" " +
" }" +
"}";
var lexer = new Lexer.Lexer();
var tokens = lexer.Lex(src);
var parser = new Parser.Parser(tokens);
var ast = parser.Parse();
var binder = new Binder();
var semanticModel = binder.Bind(new List<CompilationUnitSyntax> { ast }).Single();
var boundNamespace = semanticModel.Namespaces.Single(x => x.Name == "MyNamespace");
var expectedFunctionReturnType = boundNamespace.Types.Single(x => x.Name == "MyClass2");
var function = boundNamespace.Types.Single(x => x.Name == "MyClass").Functions.Single(x => x.Name == "Add");
Assert.AreSame(expectedFunctionReturnType, function.ReturnType);
}
public void TestFieldTypeToVariableBinding()
{
const string src = "namespace MyNamespace" +
"{" +
" class MyClass" +
" {" +
" var field : false" +
" var field2 : new MyClass2()" +
" func MyFunc()" +
" {" +
" var i : field" +
" var i2 : field2" +
" }" +
" }" +
"" +
" class MyClass2" +
" {" +
" " +
" }" +
"}";
var lexer = new Lexer.Lexer();
var tokens = lexer.Lex(src);
var parser = new Parser.Parser(tokens);
var ast = parser.Parse();
var binder = new Binder();
var semanticModel = binder.Bind(new List<CompilationUnitSyntax> { ast }).Single();
var boundNamespace = semanticModel.Namespaces.Single(x => x.Name == "MyNamespace");
var referencedBoundType = boundNamespace.Types.Single(x => x.Name == "MyClass2");
var boundType = boundNamespace.Types.Single(x => x.Name == "MyClass");
var boundFunction = (BoundFunction)boundType.Functions.Single(x => x.Name == "MyFunc");
Assert.IsInstanceOf<BoolCompilerGeneratedType>(
((IBoundMember)((BoundScopeStatement)boundFunction.Statements).Statements[0]).Type);
Assert.AreSame(
((IBoundMember)((BoundScopeStatement)boundFunction.Statements).Statements[1]).Type,
referencedBoundType);
}
public void Test_ArrayAccessInvalidParameter_Throws()
{
const string src = "namespace MyNamespace" +
"{" +
" class MyClass" +
" {" +
" func Add(int a, int b)" +
" { " +
" var c : new int[1][1]" +
" var d : c[1]" +
" }" +
" }" +
"}";
var lexer = new Lexer.Lexer();
var tokens = lexer.Lex(src);
var parser = new Parser.Parser(tokens);
var ast = parser.Parse();
var binder = new Binder();
Assert.That(
() => binder.Bind(new List<CompilationUnitSyntax>() { ast }),
Throws.InstanceOf<KiwiSemanticException>()
.With.Message.EqualTo("Parameter count (1) must match array dimension count (2)"));
}
public void Test_VariableWithSameName_Throws()
{
const string src = "namespace MyNamespace" +
"{" +
" class MyClass" +
" {" +
" func Add(int a, int b)" +
" {" +
" var a : 1" +
" var b : 2" +
" var a : 1" +
" }" +
" }" +
"}";
var lexer = new Lexer.Lexer();
var tokens = lexer.Lex(src);
var parser = new Parser.Parser(tokens);
var ast = parser.Parse();
var binder = new Binder();
Assert.That(
() => binder.Bind(new List<CompilationUnitSyntax> { ast }),
Throws.TypeOf<KiwiSemanticException>().With.Message.EqualTo("a already defined."));
}
public void Test_SwitchStatement_CasesTypeMustMatchSwitchConditionType()
{
const string src = "namespace MyNamespace" +
"{" +
" class MyClass" +
" {" +
" func Add(int a, int b) " +
" { " +
" switch(a)" +
" {" +
" case \"LOL\" -> Add(1, 0)" +
" }" +
" }" +
" }" +
"" +
"}";
var lexer = new Lexer.Lexer();
var tokens = lexer.Lex(src);
var parser = new Parser.Parser(tokens);
var ast = parser.Parse();
var binder = new Binder();
Assert.That(
() => binder.Bind(new List<CompilationUnitSyntax>() { ast }),
Throws.InstanceOf<KiwiSemanticException>()
.With.Message.EqualTo("Switch cases condition type must match switch condition type"));
}
public void Test_Scope_VariableNotDefined()
{
const string src = "namespace MyNamespace" +
"{" +
" class MyClass" +
" {" +
" func Add(int a, int b) " +
" { " +
" {" +
" var i : 1337 + b" +
" }" +
" var c : a * b * i" +
" }" +
" }" +
"" +
"}";
var lexer = new Lexer.Lexer();
var tokens = lexer.Lex(src);
var parser = new Parser.Parser(tokens);
var ast = parser.Parse();
var binder = new Binder();
Assert.That(
() => binder.Bind(new List<CompilationUnitSyntax>() { ast }),
Throws.InstanceOf<KiwiSemanticException>().With.Message.EqualTo("i not defined"));
}
public void Test_RecursivExpressionFunction_DoesThrow()
{
const string src = "namespace MyNamespace" +
"{" +
" class MyClass" +
" {" +
" func Add(int a, int b) -> return Add(1, 2)" +
" }" +
"" +
"}";
var lexer = new Lexer.Lexer();
var tokens = lexer.Lex(src);
var parser = new Parser.Parser(tokens);
var ast = parser.Parse();
var binder = new Binder();
Assert.That(
() => binder.Bind(new List<CompilationUnitSyntax>() { ast }),
Throws.InstanceOf<KiwiSemanticException>().With.Message.EqualTo("Add Type cannot be inferred"));
}
public void Test_Operator_FunctionMapping()
{
const string src = "namespace MyNamespace" +
"{" +
" class MyClass2" +
" {" +
" operator Add(MyClass2 opA, MyClass2 opB) -> return new MyClass2()" +
" operator Sub(MyClass2 opA, MyClass2 opB) -> return new MyClass2()" +
" operator Mult(MyClass2 opA, MyClass2 opB) -> return new MyClass2()" +
" operator Div(MyClass2 opA, MyClass2 opB) -> return new MyClass2()" +
" operator Pow(MyClass2 opA, MyClass2 opB) -> return new MyClass2()" +
" operator Range(MyClass2 opA, MyClass2 opB) -> return new MyClass2[1]" +
" operator In(MyClass2 opA, MyClass2 opB) -> return true" +
" }" +
" " +
" class TestClass" +
" {" +
" func TestBinaryFunc()" +
" {" +
" var instance : new MyClass2()" +
" var testAdd : instance + new MyClass2()" +
" var testSub : instance - new MyClass2()" +
" var testMult : instance * new MyClass2()" +
" var testDiv : instance / new MyClass2()" +
" var testPow : instance ^ new MyClass2()" +
" var testRange : instance..newMyClass2()" +
" var testIn : instance in new myClass2[10]" +
" }" +
"" +
"" +
" func TestAssignFunc()" +
" {" +
" var instance : None MyClass2" +
" instance +: new MyClass2()" +
" instance -: new MyClass2()" +
" instance *: new MyClass2()" +
" instance ^: new MyClass2()" +
" instance /: new MyClass2()" +
" }" +
" }" +
"}";
var lexer = new Lexer.Lexer();
var tokens = lexer.Lex(src);
var parser = new Parser.Parser(tokens);
var ast = parser.Parse();
var binder = new Binder();
var boundCompilationUnit = binder.Bind(new List<CompilationUnitSyntax>() { ast }).Single();
var boundNamespace = boundCompilationUnit.Namespaces.Single(x=>x.Name== "MyNamespace");
var operatorClass = boundNamespace.Types.Single(x=>x.Name== "MyClass2");
var testClass = boundNamespace.Types.Single(x=>x.Name == "TestClass");
var testBinaryFunc = testClass.Functions.Single(x=>x.Name== "TestBinaryFunc");
var testAssignFunc = testClass.Functions.Single(x=>x.Name== "TestAssignFunc");
}
public void Test_ObjectCreationExpression_ThrowsNoConstructorWithoutArguments()
{
const string src = "namespace MyNamespace" +
"{" +
" class MyClass" +
" {" +
" Constructor(int a){}" +
" }" +
" class MyClass2" +
" {" +
" func Foo()" +
" {" +
" var a : new MyClass()" +
" }" +
" }" +
"}";
var lexer = new Lexer.Lexer();
var tokens = lexer.Lex(src);
var parser = new Parser.Parser(tokens);
var ast = parser.Parse();
var binder = new Binder();
Assert.That(
() => binder.Bind(new List<CompilationUnitSyntax>() { ast }),
Throws.InstanceOf<KiwiSemanticException>()
.With.Message.EqualTo("MyNamespace.MyClass has no constructor without arguments."));
}
public void Test_MemberAccessExpressionBinding()
{
const string src = "namespace MyNamespace" +
"{" +
" class MyClass" +
" {" +
" func Add(int a, int b) -> return a * b" +
" }" +
"" +
" class MyClass2" +
" {" +
" var addMethod : new MyClass().Add" +
" }" +
"}";
var lexer = new Lexer.Lexer();
var tokens = lexer.Lex(src);
var parser = new Parser.Parser(tokens);
var ast = parser.Parse();
var binder = new Binder();
var boundCompilationUnit = binder.Bind(new List<CompilationUnitSyntax>() { ast }).Single();
var function =
boundCompilationUnit.Namespaces[0].Types.Single(x => x.Name == "MyClass")
.Functions.Single(x => x.Name == "Add");
var field =
boundCompilationUnit.Namespaces[0].Types.Single(x => x.Name == "MyClass2")
.Fields.Single(x => x.Name == "addMethod");
Assert.That(
() => field.Type,
Is.InstanceOf<FunctionCompilerGeneratedType>()
.And.Property("ReturnType")
.InstanceOf<IntCompilerGeneratedType>());
CollectionAssert.AllItemsAreInstancesOfType(
((FunctionCompilerGeneratedType)field.Type).ParameterTypes,
typeof(IntCompilerGeneratedType));
}
public void Test_IsExpression_ThrowsTypeNotDefined()
{
const string src = "namespace MyNamespace" +
"{" +
" class MyClass" +
" {" +
" func Add(int a, int b) -> return a * b" +
" }" +
"" +
" class MyClass2" +
" {" +
" var myClassField : new MyClass()" +
" func Foo() -> bool" +
" {" +
" return myClassField is MyClassS" +
" }" +
" }" +
"}";
var lexer = new Lexer.Lexer();
var tokens = lexer.Lex(src);
var parser = new Parser.Parser(tokens);
var ast = parser.Parse();
var binder = new Binder();
Assert.That(
() => binder.Bind(new List<CompilationUnitSyntax>() { ast }),
Throws.InstanceOf<KiwiSemanticException>().With.Message.EqualTo("MyClassS undefined Type"));
}
public void Test_IsExpression()
{
const string src = "namespace MyNamespace" +
"{" +
" class MyClass" +
" {" +
" func Add(int a, int b) -> return a * b" +
" }" +
"" +
" class MyClass2" +
" {" +
" var myClassField : new MyClass()" +
" func Foo() -> bool" +
" {" +
" return myClassField is MyClass" +
" }" +
" }" +
"}";
var lexer = new Lexer.Lexer();
var tokens = lexer.Lex(src);
var parser = new Parser.Parser(tokens);
var ast = parser.Parse();
var binder = new Binder();
var boundCompilationUnit = binder.Bind(new List<CompilationUnitSyntax>() { ast }).Single();
var type = boundCompilationUnit.Namespaces[0].Types.Single(x => x.Name == "MyClass");
var function =
(BoundFunction)
boundCompilationUnit.Namespaces[0].Types.Single(x => x.Name == "MyClass2")
.Functions.Single(x => x.Name == "Foo");
var returnStatement = (BoundReturnStatement)((BoundScopeStatement)function.Statements).Statements[0];
var boundBinaryExpression = (BoundBinaryExpression)returnStatement.Expression;
Assert.AreEqual(BinaryOperators.Is, boundBinaryExpression.Operator);
Assert.IsInstanceOf<BoundTypeExpression>(boundBinaryExpression.Right);
Assert.AreSame(((BoundTypeExpression)boundBinaryExpression.Right).ReferencedType, type);
}
public void Test_InfixCall_Types()
{
const string src = "namespace MyNamespace" +
"{" +
" class MyClass2" +
" {" +
" infix func Add(int a, int b) -> return a + b" +
" func Foo()" +
" {" +
" var a : 1 Add 2" +
" }" +
" }" +
"}";
var lexer = new Lexer.Lexer();
var tokens = lexer.Lex(src);
var parser = new Parser.Parser(tokens);
var ast = parser.Parse();
var binder = new Binder();
var boundCompilationUnits = binder.Bind(new List<CompilationUnitSyntax>() { ast });
var myClass2Type = boundCompilationUnits[0].Namespaces[0].Types.Single();
var fooFunction = myClass2Type.Functions.Single(x => x.Name == "Foo");
var addFunction = myClass2Type.Functions.Single(x => x.Name == "Add");
Assert.IsInstanceOf<BoundFunction>(addFunction);
Assert.IsTrue(((BoundFunction)addFunction).IsInfixFunction);
Assert.IsInstanceOf<BoundFunction>(fooFunction);
var boundFunction = (BoundFunction)fooFunction;
Assert.IsInstanceOf<BoundScopeStatement>(boundFunction.Statements);
var boundScopeStatement = (BoundScopeStatement)boundFunction.Statements;
Assert.IsInstanceOf<BoundVariableDeclarationStatement>(boundScopeStatement.Statements[0]);
var boundVariableDeclarationStatement = (BoundVariableDeclarationStatement)boundScopeStatement.Statements[0];
Assert.IsInstanceOf<BoundInvocationExpression>(boundVariableDeclarationStatement.BoundExpression);
var boundInvocationExpression = (BoundInvocationExpression)boundVariableDeclarationStatement.BoundExpression;
Assert.IsInstanceOf<BoundMemberExpression>(boundInvocationExpression.ToInvoke);
var boundMemberExpression = (BoundMemberExpression)boundInvocationExpression.ToInvoke;
Assert.AreSame(addFunction, boundMemberExpression.BoundMember);
}
public void Test_IfStatement_IfConditionMustBeBool()
{
const string src = "namespace MyNamespace" +
"{" +
" class MyClass" +
" {" +
" func Add(int a, int b) " +
" { " +
" if(a)" +
" {" +
" " +
" }" +
" }" +
" }" +
"" +
"}";
var lexer = new Lexer.Lexer();
var tokens = lexer.Lex(src);
var parser = new Parser.Parser(tokens);
var ast = parser.Parse();
var binder = new Binder();
Assert.That(
() => binder.Bind(new List<CompilationUnitSyntax>() { ast }),
Throws.InstanceOf<KiwiSemanticException>().With.Message.EqualTo("If condition must be of Type Bool"));
}
public void Test_IfElseExpression_IfTrueIfFalseTypeMustBeEqual()
{
const string src = "namespace MyNamespace" +
"{" +
" class MyClass" +
" {" +
" func Add(int a, float b) -> return if(true) a else b" +
" }" +
"" +
"}";
var lexer = new Lexer.Lexer();
var tokens = lexer.Lex(src);
var parser = new Parser.Parser(tokens);
var ast = parser.Parse();
var binder = new Binder();
Assert.That(
() => binder.Bind(new List<CompilationUnitSyntax>() { ast }),
Throws.InstanceOf<KiwiSemanticException>()
.With.Message.EqualTo("IfTrue and IfFalse expression Type must match"));
}