public void ReturnNoExpressionTest()
{
const string Code = @"
Return;
";
ProgramNode program = MyAssert.NoError(() =>
{
var lexemes = new Lexer(Code).LexAll();
var parser = new ProgramParser(lexemes, Code);
return(parser.ParseWholeProgram());
});
Assert.NotNull(program);
Assert.AreEqual(1, program !.TopLevelStatementNodes.Count);
Assert.IsTrue(program.TopLevelStatementNodes[0] is ReturnStatementNode
{
ReturnExpressionNode: null
});
public void IllegalBindingTest()
{
const string Code =
@"
Var x = 1;
y = 2;
";
var e = MyAssert.Error(Code);
Assert.AreEqual(ErrorCode.CantAssignUndeclaredVariable, e.ErrorCode);
Assert.AreEqual(3, e.LineNumber);
Assert.AreEqual(1, e.Column);
//MyAssert.Error(Code,
// e =>
// {
// Assert.AreEqual(ErrorCode.CantAssignUndeclaredVariable, e.ErrorCode);
// Assert.AreEqual(3, e.LineNumber);
// Assert.AreEqual(1, e.Column);
// });
}
public void FunctionDeclarationNoParametersWithReturnTest()
{
const string Code = @"
Func HelloWorld() As Int
{
Output(""Hello "" + x);
}
";
FunctionDeclarationNode func = MyAssert.NoError(() =>
{
var lexemes = new Lexer(Code).LexAll();
var parser = new ProgramParser(lexemes, Code);
return(parser.ParseFunctionDeclaration());
});
Assert.NotNull(func);
Assert.AreEqual("HelloWorld", func !.Identifier);
Assert.AreEqual(0, func.ParameterNodes.Count);
Assert.NotNull(func.ReturnTypeNode);
Assert.AreEqual(1, func.BodyNode.Count);
}
