micropython/tests/basics/fun_defargs.py

def fun1(val=5):
    print(val)

fun1()
fun1(10)

def fun2(p1, p2=100, p3="foo"):
    print(p1, p2, p3)

fun2(1)
fun2(1, None)
fun2(0, "bar", 200)
try:
    fun2()
except TypeError:
    print("TypeError")
try:
    fun2(1, 2, 3, 4)
except TypeError:
    print("TypeError")
Implement default function arguments (for Python functions). TODO: Decide if we really need separate bytecode for creating functions with default arguments - we would need same for closures, then there're keywords arguments too. Having all combinations is a small exponential explosion, likely we need just 2 cases - simplest (no defaults, no kw), and full - defaults & kw. 2014-02-01 13:05:04 +00:00			`def fun1(val=5):`
tests: Fix default arg test. 2014-06-07 23:12:32 +00:00			`print(val)`
Implement default function arguments (for Python functions). TODO: Decide if we really need separate bytecode for creating functions with default arguments - we would need same for closures, then there're keywords arguments too. Having all combinations is a small exponential explosion, likely we need just 2 cases - simplest (no defaults, no kw), and full - defaults & kw. 2014-02-01 13:05:04 +00:00
			`fun1()`
			`fun1(10)`

			`def fun2(p1, p2=100, p3="foo"):`
			`print(p1, p2, p3)`

			`fun2(1)`
			`fun2(1, None)`
			`fun2(0, "bar", 200)`
			`try:`
			`fun2()`
			`except TypeError:`
			`print("TypeError")`
			`try:`
			`fun2(1, 2, 3, 4)`
			`except TypeError:`
			`print("TypeError")`