example.fl

# FlowLang example file
# Start by defining shared objects
# Functions called from a shared objects will always share a state together.
# You may now define the same .so file twice
$so 
  libworker 
  @/nctsiridis/libworker.so;

# ! overides the function name
# @ can be overwritten with $@, default is /opt/flowlang/
# Can make package manager down the road
# Anything that's not a space or newline will try to parse as a token 
$fn 
  greeter 
  libworker.hello_a 
  () -> (1|char*), (2|int, char*); # no inputs and can write a char* to channel 1 or char* + int channel 2

$fn !addr adder:
  @/nctsiridis/libworker.so,
  (int, int) -> (1|int); # function takes two inputs and might write an integer to channel 1

$ent num1(int) num2(int): # ent is the entry function and is essential
  (num1, num2) -> addr, # creates an instance of the addr function with unique id 0
  addr(1|1) -> @print, # sends the first (and only) variable from the first channels output to the generic printer
  addr -> greeter,
  greeter(2|) -> greeter;

$flow num1(int) num2(int):
  (num1) -> @print # use @ to access generic functions provided by wfl interpreter 
  
 
# functions can define "output channels" which are based on the emit() function
# for example emit(1, "hello") will emit the string "hello" on channel 1