nikolaygekht / luax Goto Github PK

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A grammar, compiler and C# execution engine for a language designed on the base of Lua for cross-compilation into C++, C#, Java, JavaScript, Python etc...

License: GNU Lesser General Public License v2.1

C# 99.46% Batchfile 0.08% Shell 0.04% XSLT 0.42%

luax's Introduction

Hey!

My name is Nikolay Gekht or @nikolaygekht at github.

You can also find me in the other places:

Look at LinkedIn https://www.linkedin.com/in/nikolay-gekht/ for my resume, work history, certifications and articles in English
Read my articles in English at my company website: https://gehtsoftusa.com/author/nikolay-gekht/
Read my translations and articles in Russian at habr: https://habr.com/ru/users/ngekht/

I earned my first money back in 1988 (I was in high school) developing receipe management software for a milk factory. It ran a Soviet copy of PDP-11 microcomputer called DVK and was written in pure K&R C. Then there were years of assembler programming for 8080, Z80, 8086, 80386. Then came Windows 3.0 and C++. 20 years, dozen of languages and handful of OSes later, I currently mostly use C# and occasionally develop cross-platform Windows/Linux apps.

Last few years, while still acting as a architect and project leader, I shifted my focus to organization of the development team, business agility and... education.

As an educator I deliver Microsoft's C# developer and Azure developer as well as ICAgile's ICP course. For sure, I am open for coaching and mentoring about development or Agile questions. Please feel free to take a look at my courses flyer

So... welcome to my page and don't forget to take a look at my company's page, most of open source projects, that I support, are located there @gehtsoft-usa.

luax's People

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luax's Issues

Не работает конкатенация с вызовом метода

var terminal: ITerminal;
var message: string;
...
message = "Terminal type. expected '" .. TerminalType.TRADING .. "', actual '" .. terminal.getType() .. "'";
                                                                               ^

При компиляции выдает ошибку:

Unhandled exception. Luax.Parser.Ast.LuaXAstGeneratorException: TerminalTest.luax(15,88) : 
The class name or an object expression is expected here

Если terminal.getType() заменить на переменную, отработает без ошибок.

Concatenation with access to an array element does not work

var v: string[];
var s: string;
v = new string[3];
...
s = "some text '" .. v[0] .. "'";

Error:

[] operator can be applied to arrays only

Endless loop in the case of inheriting itself

class TerminalFactory: TerminalFactory
    public function createTerminal(name: string) : void
    end
end

 var factory: TerminalFactory;
 factory = new TerminalFactory();
 factory.createTerminal("SomeTerminalName");

Actual Result:
The process has entered into an endless loop

Expected Result:
Сompilation error

Exception on undeclared parent class case

При объявлении в качестве родителя класса имени неопределённого класса

class someClass : unknownClass
end

возникает:

Unexpected exception:
System.NullReferenceException: Object reference not set to an instance of an object.

owner properties and methods access with "this" instance usage

The owner properties and methods access from inner class with "this" instance usage doesn't generate a parser error

vscode syntax: numbers with underscore

Numeric constants with an underscore aren't supported

e.g.

assert.isTrue(0x1234_abcd == 0x1234_abcd, "underscore in hex");
assert.isTrue(1_234_567 == 1234567, "underscore in integer");
assert.isTrue(1_234.567_890e2 == 123456.789, "underscore in real");

Just in case, the regular expression for underscored numbers you can take in the colorer's definition file.

Incorrect syntax error position information on function with attributes

В следующем примере, при отсутствии определения класса 'unknownClass', в сообщении об ошибке будет указана позиция первого атрибута (здесь '@theory()'), а не функции.

@Theory()
@TheoryData("", "")
@TheoryData("abc", "a")
@TheoryData("abcde\nqwerty", "aq")
@TheoryData("abcdef\nqwerty\n12345", "aq1")
public function testGetFirstLetters(arg : string, expected : string) : unknownClass
   assert.isTrue((new getFirstLetters()).process(arg) == expected, "");
end

Incompatible types error when compare string with nil

function f(message: string): void
    if message ~= nil then
        ...
    end
end

Error:

The relational operators must have compatible type on both side

class Program
    static function Main() : void
        f1();
    end
    static function f1() : void
        if true then
            f2();
        end
    end
    static function f2() : void
        while true do
            if not false then
                f3();
            end
        end
    end

    static function f3() : int
        return 1 / 0;
    end
end

The call stack will be:

LuaXExecutionException: Attempted to divide by zero..
    at Program.f3() in q.luax(19,9)     <- correct (exception site)
    at Program.f2() in q.luax(13,17)    <- correct (f3 call)
    at Program.f2() in q.luax(12,13)    <- not correct (if)
    at Program.f2() in q.luax(11,9)     <- not correct (while)
    at Program.f1() in q.luax(7,13)     <- correct (f2 call)
    at Program.f1() in q.luax(6,9)      <- not correct (if)
    at Program.Main() in q.luax(3,9)    <- correct (f1 call)

Please use right this example to add into unittest (LuaX.Interpreter.Test). Consider adding other constructions (e.g. try, for, repeat) as they are developed.