diff options
Diffstat (limited to 'examples/learnxiny.tm')
| -rw-r--r-- | examples/learnxiny.tm | 60 |
1 files changed, 30 insertions, 30 deletions
diff --git a/examples/learnxiny.tm b/examples/learnxiny.tm index 6a3b7e21..d05c92f2 100644 --- a/examples/learnxiny.tm +++ b/examples/learnxiny.tm @@ -3,7 +3,7 @@ # which is compiled to a binary using your C compiler of choice. # To begin with, let's define a main function: -func main(): +func main() # This function's code will run if you run this file. # Print to the console @@ -45,11 +45,11 @@ func main(): my_bool := yes # Conditionals: - if my_bool: + if my_bool say("It worked!") - else if my_variable == 99: + else if my_variable == 99 say("else if") - else: + else say("else") # Arrays: @@ -73,11 +73,11 @@ func main(): # exit. # Iteration: - for num in my_numbers: + for num in my_numbers >> num # Optionally, you can use an iteration index as well: - for index, num in my_numbers: + for index, num in my_numbers pass # Pass means "do nothing" # Arrays can be created with array comprehensions, which are loops: @@ -87,15 +87,15 @@ func main(): = [100, 300] # Loop control flow uses "skip" and "stop" - for x in my_numbers: - for y in my_numbers: - if x == y: + for x in my_numbers + for y in my_numbers + if x == y skip # For readability, you can also use postfix conditionals: skip if x == y - if x + y == 60: + if x + y == 60 # Skip or stop can specify a loop variable if you want to # affect an enclosing loop: stop x @@ -123,10 +123,10 @@ func main(): empty_table : {Text=Int} = {} # Tables can be iterated over either by key or key,value: - for key in table: + for key in table pass - for key, value in table: + for key, value in table pass # Tables also have ".keys" and ".values" fields to explicitly access the @@ -213,15 +213,15 @@ func main(): # Functions must be declared at the top level of a file and must specify the # types of all of their arguments and return value (if any): -func add(x:Int, y:Int -> Int): +func add(x:Int, y:Int -> Int) return x + y # Default values for arguments can be provided in place of a type (the type is # inferred from the default value): -func show_both(first:Int, second=0 -> Text): +func show_both(first:Int, second=0 -> Text) return "first=$first second=$second" -func demo_keyword_args(): +func demo_keyword_args() >> show_both(1, 2) = "first=1 second=2" @@ -244,27 +244,27 @@ func takes_many_types( pointer_to_mutable_array_of_ints:@[Int], optional_int:Int?, function_from_int_to_text:func(x:Int -> Text), -): +) pass # Now let's define our own datastructure, a humble struct: -struct Person(name:Text, age:Int): +struct Person(name:Text, age:Int) # We can define constants here if we want to: max_age := 122 # Methods are defined here as well: - func say_age(self:Person): + func say_age(self:Person) say("My age is $self.age") # If you want to mutate a value, you must have a mutable pointer: - func increase_age(self:@Person, amount=1): + func increase_age(self:@Person, amount=1) self.age += amount # Methods don't have to take a Person as their first argument: - func get_cool_name(->Text): + func get_cool_name(->Text) return "Blade" -func demo_structs(): +func demo_structs() # Creating a struct: alice := Person("Alice", 30) >> alice @@ -303,23 +303,23 @@ enum Shape( Point, Circle(radius:Num), Rectangle(width:Num, height:Num), -): +) # Just like with structs, you define methods and constants inside a level # of indentation: - func get_area(self:Shape->Num): + func get_area(self:Shape->Num) # In order to work with an enum, it's most often handy to use a 'when' # statement to get the internal values: - when self is Point: + when self is Point return 0 - is Circle(r): + is Circle(r) return Num.PI * r^2 - is Rectangle(w, h): + is Rectangle(w, h) return w * h # 'when' statements are checked for exhaustiveness, so the compiler # will give an error if you forgot any cases. You can also use 'else:' # if you want a fallback to handle other cases. -func demo_enums(): +func demo_enums() # Enums are constructed like this: my_shape := Shape.Circle(1.0) @@ -338,16 +338,16 @@ func demo_enums(): >> {my_shape="nice"} = {Shape.Circle(1)="nice"} -func demo_lambdas(): +func demo_lambdas() # Lambdas, or anonymous functions, can be used like this: - add_one := func(x:Int): x + 1 + add_one := func(x:Int) x + 1 >> add_one(5) = 6 # Lambdas can capture closure values, but only as a snapshot from when the # lambda was created: n := 10 - add_n := func(x:Int): x + n + add_n := func(x:Int) x + n >> add_n(5) = 15 |