created by

Yiu Wing

script type

utility

description

ObjectSense is a superset of VimL8, and has all the main features of a modern object-oriented language, such as data encapsulation, polymorphism, inheritance, etc.  On top of the language implementation, rose - a module manager is provided, which is also built into the language runtime.  It's very developer friendly, especially for those who already have a working knowledge of VimL8 can effortlessly expand their skills to code in ObjectSense.   As a bonus feature, polyglot programming is easily doable in ObjectSense.  Currently vim8 and vim9 are supported, with minimal work the list can grow longer to include other languages, such as, python, ruby, lua, etc.  However, as far as the operating system is concerned, only Linux and MacOS are supported at the moment.  There is a user-defined command, UT, for doing unit tests of the current class.  It's very convenient for accessing class data in unit tests.  No need for finding workaround to the language barrier when accessing such data in white box testing.  Every component can be properly tested! Pure and simple!  By following a few simple conventions and thanks to the built-in modular mechanism in the language runtime, ObjectSense programs are very scalable and development work can be distributed comfortably among team members. In a more programming linguistic point of view, ObjectSense is of imperative paradigm on the surface, but carries functional programming abilities.  In the language runtime, each object has its own data and functions, there's nothing shared.  An object is entirely in its own universe just like functional programming.  Because the lack of time, we haven't explored such property of the language much.  Hopefully, the community can shed new lights on such nice combination. This is a strong demonstration of what VimL8 is capable of.  ObjectSense takes less than 5000 lines of code for the core of the language implementation.  Although it's a superset of an existing language, it's very hard to imagine using such little code for implementing a non-trivial programming language.  VimL8 has a lot of unrealised potentials, people really shouldn't jump off the bandwagon too quickly. The best argument for vim9 is performance.  We have found a way kind of 'compile' or speedup the load time for ObjectSense. In practice, we could really compile such code into binary and wire it with the language runtime, and without asking developers to learn a completely new language, i.e., being 100% compatible with existing VimL8 syntax and have the acclaimed performance at the same time.  However, in our scenario ObjectSense performance issues have been tackled by the semi-compile approach, so no effort was directed to do the real compiling work which could bloat the code base exponentially. Please download and untar the tarball, start from object/doc/readme.txt.

install details

1.  move the downloaded tarball to ~/.vim directory, and untar it         mv onecloud-object-sense.tar.gz ~/.vim         cd ~/.vim         tar -xvf onecloud-object-sense.tar.gz 2.  open .vimrc and add a line         so ~/.vim/object/ObjectSense.vim 3.  add the following in .vimrc for doing ObjectSense development         const g:OBJECT_SENSE_DEV = 1 4.  to get a taste of the language, check out ~/.vim/object/demo subdirectories

Click on the package to download.

package	script version	date	Vim version	user	release notes
onecloud-object-sense-2.1.0.tar.gz	2.1.0	2024-01-09	8.2	Yiu Wing	This release focuses on supporting nvim and bug fixes. 1.  ObjectSense works fine with NVIM v0.9.0 onward. 2.  Added memery class support.  Developer can generate classes on the     fly, which only exist on the runtime, but not on the hard disk.
onecloud-object-sense-2.0.0.tar.gz	2.0.0	2023-09-03	8.2	Yiu Wing	This is a tremendous update, which really takes ObjectSense into another level and no other language has done before!  It can be the ultimate form of literate programming or even beyond literate programming.  We started out doing object-oriented programming in vimL, never thought would end up anything like this. Now we can have functional, procedural, object-oriented, imperative, declarative, or any existing programming paradigms under one host language - vimL.  Polyglot programming can be as easy as abc. A new directive Let is added to the language.  As a result, we no longer need to have CreateInstance calls when creating new objects.  Thusly, making ObjectSense very clean from vimL, only ObjectSense directives and annotations are required when expressing the language. Also there are other new directives added to aid with day to day programming chores from this release. 1.  A new programming construct called micro is introduced.  This feature is     conceptually like lisp macro, which blends in the host language seamlessly     and extends linguistic functionality on source code level.  Because the     name macro is already taken by vim to mean something else, in order to     avoid confusion and make the distinction of lisp macro, the word 'micro'     is chosen to depict a small piece of code that can have special     interpreting meaning other than the host language, which is vimL in here.     However, unlike other lisp-like macros, there's no AST involve in our     micro implementation, since vim doesn't use AST at runtime and its parser     is hand-crafted.  As a result, ObjectSense requires developers to manually     define the parser, and have the result presented as a vim statement that     can be executed.  Nevertheless, because there's no host language or AST     restriction, it can make the DSL much more expressive and have free style     syntax.  It's a breeze to embed code from any programming language in     ObjectSense.  VimL already has a tone of built-in functions to deal with     strings, it shouldn't be too much effort for a workable DSL parser.     Basically, what the parser does is to take an input of string and convert     it into a vim statement.  The micro framework will execute the statement     once it's returned from the parser.     In lisp-like macros implementations, macros are often compiled, making     them as effective as the host language.  However, the current     implementation of micro is not compiled, it has some performance cost.     Future work is planning to compile ObjectSense into vimL9 instructions     while retaining it as a superset of vimL8 syntactically.  So vimL9 would     act some kind of VM just like the famous JVM, and ObjectSense will provide     compiler tools for micro/DSL implementations that need performance boost. From a different perspective, micro puts a layer between the host language     and the guest language, whereas lisp-like macros are sharing the same     execution context directly with the host language.  Micro provides better     protection to the host language runtime than traditional APIs and macros,     because the interface between them are strictly available only through the     guest language parser.  Also, micros can have richer expressiveness and     abstraction than APIs and macros.     In real project practice and as time progresses, it's very easy for APIs     and macros to leak internal details to the client code.  However,     abstraction through micro DSL would make it much harder to leak the     encapsulating data, because they don't share the same runtime.     Inherently, the side-effects for the usage of micros are much manageable     albeit not immutable.     Programmers can define their extensions to the language as they like by     using micro.  The module dependency mechanism from rose also works with     micro.  We can export APIs as well as micros in module description file     Sense.ose.  However, the following example demonstrates only exporting     micros, no functions, from MyClass.         export mycompany.business.MyClass         export mycompany.business.MyClass.!     For the client code that uses micros from MyClass         Import! mycompany.business.MyClass     Notice <bang> or '!' version of Import was adapted to work with importing     micros from a class.     To create a new micro called Python with the interpreter defined in     s:RunPython, we would have something like the following         Micro Python s:RunPython         function! s:RunPython(code, extra)             " just print out whatever was in code             echo a:code             return ""         endfun     To run Python micro, we could have,         Python hello world     Or define a function that would be interpreted by Python micro,         Python! s:Greeting()             This is greeting from python.         End         call s:Greeting() "<--- print 'This is greeting from python'     Variable expansion and string interpolating are taken place before     invoking the interpreter for the micro. 2.  Introduced Let directive, the first letter is upper case L, for assigning     and declaring new objects.  We have Dart 2.0 like syntax for create new     objects with the Let directive.  For example,         Let object = MyClass()     This directive let us drop the use of global function CreateInstance, so     being a superset of vimL, the semantics of the language can be defined by     the ObjectSense language directives and annotations only, no exposure to     any functions or other language constructs from vimL.     The Let directive also supports static constants.  To define a static     constant we have the following syntax, in Preload         Class MyClass         function! s:Preload()             Let! GLOBAL_VAR = "this is a global variable"         endfun     To access in another class, we have to borrow it first,         Borrow! MyClass         Class ClientCode         function! s:Move()             echo s:GLOBAL_VAR " <--- prints "this is a global variable"         endfun     The Let directive also supports inline variable.  The following is an     example use of such construct.       Class MyClass         function! s:Preload()             Let >> context = "http context"         endfun     To use the inline variable context in another class, we will have         Borrow! MyClass         Class ClientCode         function! s:Demo()             Let << context             echo context " <--- prints "http context"         endfun 3.  Switch statements are supported now, which can take different operators     which are compatible with vim operator, see :h expr4, there's one more     operator, instanceof, added to support type checking.         Switch object instanceof             Case v:t_string echo "this is a string"             Case MyClass echo "this my class"             Default echo "not recognised class from object: " . string(object) 4.  Refine control over module dependency, making the mechanism more workable     with real-life projects.  Before sourcing ObjectSense.vim, users can set     g:PRIVILEGED_MODULES variable to allow 3 or less modules that have the     privilege to add dependent modules at runtime. 5.  For more examples, see demo/micro directory. 6.  The next release will focus on supporting Nvim.  Hopefully, ObjectSense     can bring vim and nvim plugin developers under the same roof again.
onecloud-object-sense-1.1.5.tar.gz	1.1.5	2023-01-01	8.2	Yiu Wing	1.  Supported the granularity of export level down to each accessible function     of a class for a module without compromising performance. Three are three     levels of access rights are supported in module export, namely, they are     package, class, and function.     For the export function to work, we have to export its class first, and     then the function export of a class follows either explicit rule or     implicit rule.  If there's no explicit rule specified for an export class,     then all the functions for that class will be implicitly exported.     Otherwise, only those explicitly specified functions will be exported.     There are three levels of access controls for a class.  The first one is     module export which is available for all the modules.  This is equivalent     of 'open' for Swift.  The next one is internally available within a module     this is where 'accessible' is specified for a function, which is the     equivalent of 'internal' for Swift.  The third one is private access     within a class, for functions that have no 'accessible' annotation     attached but have a 's:' in front of the function name. 2.  Support adding pluggable commands to rose.  First at all, developer use     the 'command' attribute to define the command name and command callback in     Sense.ose.  For example:         command bundle  mycompany.object.bundle.BundleCommand     defines a command called 'bundle', and have the BundleCommand in the     above package as the command callback which inherits a new export class     object.RoseCommand and implement the details in function s:Execute(...). 3.  Introduced a new export class SenseParser which helps customised attributes     to be defined by developers to store module specific data or settings.     This works very much like command attribute.  First at all, define the     attribute name and the parser to the attribute.     For example         parser cockpit  mycompany.object.cockpit.CockpitParser     define an attribute called 'cockpit', which will have its data parsed by     CockpitParser.  It has three methods, namely, s:OnCommence, s:Process and     s:OnCompletion.  The first method is called before the parsing.  The     second one is called by the framework when parsing each line of attribute     data.  The final one is invoked when finished parsing Sense.ose file. 4.  Supported export class for inheritance. 5.  Support loading multiple modules in QuickStart. 6.  Added bash command line completion for rose. 7.  Fixed some bugs in module accessibility. 8.  Adding more test cases.
onecloud-object-sense-1.1.4.tar.gz	1.1.4	2022-09-10	8.2	Yiu Wing	1. 'rose test' is able to give a line-based test coverage report and     highlight the lines that are not covered by test     For example, run the test coverage on rose package that comes with ObjectSense,         cd object         rose test rose -c     Open the browser and visit the generated html. 2.  supported polyglot in QuickStart 3.  introduce UnitTestBelow directive which prevents loading unit test code in      production environment 4.  refactor quite a few number of variable and function names 5.  tighten up some loose logic and fixed a bunch of bugs 6.  provide object.Runtime class to work with the modules at runtime
onecloud-object-sense-1.1.3.tar.gz	1.1.3	2022-08-14	8.2	Yiu Wing	Initial upload

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