Question

Write 1 part of type checking (static semantics) of function application.

Answer 1

In function application, type checking verifies that the arguments passed to a function match the parameter types declared in the function's signature.

Step-by-step explanation:

In the context of programming languages, type checking is a process that ensures that the types of expressions in a program are compatible with the expected types. When it comes to function application, type checking involves ensuring that the arguments passed to a function match the parameter types declared in the function's signature.

For example, consider a function in a programming language like Python:

def add_numbers(a: int, b: int) -> int:
return a + b

result = add_numbers(10, 20) # Function call

In this case, the type checker would verify that the arguments passed to the function 'add_numbers' are integers because the function's signature specifies that the parameters 'a' and 'b' should have type 'int'.