Home

Welcome to the less-java wiki! This page was used to track progress during the 2017-2018 academic year while the primary author completed his honors thesis work. It is no longer maintained. Please see the official repo and the issue list for current information.

DONE:

• writing
  • first draft (3/13)
  • draft to committee (3/20)
  • comments from committee (3/27)
  • final draft (4/3) (formatting guidelines)
  • due (4/10)
• feature: OOP
  • short example code (1/23)
  • correct parsing (2/13)
  • re-read EAC on objects (3/13)
  • class definitions, member attributes, and instances (3/13)
  • member methods and constructors (3/13)
  • "this" references and inheritance (3/13)
• feature: list '[]' (ArrayList) (1/30)
  • list : () -> 'a list
  • add/push/enqueue : 'a list -> 'a -> ()
  • remove : 'a list -> 'a -> 'a
  • pop/dequeue : 'a list -> 'a
  • insert : 'a list -> int -> 'a -> ()
  • removeAt: 'a list -> int -> ()
  • get : 'a list -> int -> 'a
  • set : 'a list -> int -> 'a -> ()
  • size : 'a list -> int
• feature: set '{}' (HashSet): add/remove/contains, (union/intersection/difference?), size (1/30)
  • set : () -> 'a set
• feature: map '<>' (HashMap): put/get/remove, getKeys/containsKey, size (1/30)
  • map : () -> ('a,'b) map
  • getKeys : ('a,'b) map -> 'a set
• fix negative numbers/unary operators (unop.lj example) (1/30)
• writing
  • create Overleaf document and add Lam (1/23)
  • write outline (1/30)
• major language feature: no procedural code at global scope (1/23)
  • add 'global' variables initialized to constants
  • fix variable scoping issue
• fix: floating point equality should be exact (1/23)
• major language feature: no procedural code at global scope
  • enforce existence of main (1/16)
• feature: native data types (1/9)
  • int (Integer)
  • bool (Boolean)
  • real (Double)
  • string (String)
• design: collections (12/12)
• ready for competitive programming session (12/8)
  • quick-and-easy deployment
  • problems
    • hello world
    • find largest number
    • oddgnome
    • 3n+1
• fix function-local variable declarations (12/5)
• major feature: debug type inference
  • fix non-halting problem (11/28)
  • instantiate universal types at function calls (11/28)
• feature: scanner-based input (11/28)
• refactoring: Program -> ( Func | Stmt | Test ) * (10/24)
• major feature: unit tests (10/17)
  • test harness for compiled program output (10/17)
• feature: vim highlighting! (10/10)
• major feature: universal type inference (10/10)
• parser: let function names contain digits (9/26)
• parser: add comments (9/26)
  • add type annotations to all type-inference.lj functions (9/26)
• parser: fix operator precedence (9/19)
• codegen: print to stdout (9/19)

OFFICIAL FUTURE WORK:

• major feature: OOP
  • passing objects as parameters (fix type inference issues) #18
• all: testsuite (3/27)
  • external testing framework for invalid programs, crashes, hangs, regressions #19
  • internal testing framework for language correctness #19
  • reformat output from JUnit (will be fixed by #12)
• documentation for future students #20
• future work: reimplement Decaf static analysis #11
  • duplicate symbols
  • return/break locations
  • expression types
  • function parameters
  • report line numbers
  • type unification failures
• future work: runtime exception handler #21
• future work: add inferred type output flag #22
• future work: easy installation and one-command build system #23