Commit graph

4 commits

Author SHA1 Message Date
turleypol
1463b76c7c
Includes are now all relative to pol-core basefolder (#906)
* all except pol

* pol and includes under defines

* something weird has happened

* remove own folder from include searchpath

* fixed remaining, adapted include style for external headers

* missing include
2026-07-25 23:01:18 +02:00
Kevin Eady
f381f46dc3
Add compiler support for function expressions (#671)
* initial poc of function expressions
- update grammar
- mock AST builder to return BBoolean(true) for a func expr
- update prettifier for skeleton implementation

* more skeleton work
create AST class FunctionExpression mimicking boolean value

* create ast UserFunction, add to workspace from functexpr

* can generate instructions

* reorg tests; add test for instructions

* can track FunctionDepth in Variable

* can get captures for funcexprs inside funcs.. tbd if this way of nesting works

* Implement create-functor instruction
- Move function depth from Variable to Variables
- Introduce stacking of `Variables` for function expresions via `FunctionVariableScope`
- Add `TOK_FUNCTOR` instruction for 'create-functor'
- Handle emitting a `FunctionExpression` AST node
- Update `emit.declare_variable` and `emit.access_variable` to account for function captures
- Remove `in_function` from instruction generator, as it is tracked via `UserFunction` stack
- Update tests

* Address Discord comments
- Swap pop param order

* Bubble up captured variables through nested functions

* Improve testing infrastructure; add some test cases

* Fix compilation error

* prepend captures to function parameters in funcref mth_call

* update tests

* move from function{} to @{}

* implementation fix

* some more tests

* update docs

* Some cleanup

* fix CI annotation warning
- 'argument': conversion from 'size_t' to 'VariableIndex', possible loss of data

* Address review comments
- Add `passert_always`
- Use better example in docs

* Some cleanup
- Remove unused functions
2024-07-29 22:30:52 +02:00
Kevin Eady
0cd9412066
Properly scope the compiler includes to the Bscript folder. (#360) 2021-02-25 16:53:22 +01:00
Eric Swanson
64503c2866
var statements in program blocks (#256)
Adds:
- analyzer/LocalVariableScope: tracks local variables created within a given scope.
  - Instantiated on the stack during semantic analysis, this registers itself with LocalVariableScopes during construction and deregisters itself during destruction.
  - Detects unused variables during deregistration
- analyzer/LocalVariableScopes: this is what LocalVariableScope registers with.
  - keeps track of the stack of local scopes.
  - can provide the current local scope, for var statements.

Other notes:

"Shadowed" variables: this is when a variable in one scope hides a variable in another, like so:
    var a := 2;
    if (a)
        var a := 3;
        a := 4;
    endif
    print(a); // still 2
"debug_variables": We'll use these later when writing debug files.
2020-08-30 01:32:38 -07:00