Deprecate old void! @benchmark and @test functions.

test/unit/regression/bitstruct_ops.c3

@@ -14,7 +14,7 @@ bitstruct Bar : char[13]
 	bool gh : 25;
 }
 
-fn void! test_bitops() @test
+fn void test_bitops() @test
 {
 	Foo f1 = { true, true };
 	Foo f2 = { true, false };

test/unit/regression/bitstruct_ops2.c3

@@ -14,7 +14,7 @@ bitstruct Bar : char[13]
 	bool gh;
 }
 
-fn void! test_bitops() @test
+fn void test_bitops() @test
 {
 	Foo f1 = { true, true };
 	Foo f2 = { true, false };
@@ -42,7 +42,7 @@ fn void! test_bitops() @test
 	assert(b3.z == true && b3.w == false && b3.gh == true);
 }
 
-fn void! test_bitops_const() @test
+fn void test_bitops_const() @test
 {
 	const Foo F1 = { true, true };
 	const Foo F2 = { true, false };

test/unit/regression/ct_slice.c3

@@ -1,6 +1,6 @@
 module ct_slice @test;
 
-fn void! slice_bytes()
+fn void slice_bytes()
 {
 	char[4] $a = x'aabbccdd';
 	var $b = $a[1..2];
@@ -9,7 +9,7 @@ fn void! slice_bytes()
 	assert(y == char[2] { 187, 204 });
 }
 
-fn void! slice_string()
+fn void slice_string()
 {
 	String $a = "abcd";
 	assert($a == "abcd");

test/unit/regression/inc_dec.c3

@@ -1,4 +1,4 @@
-fn void! vector_inc_dec() @test
+fn void vector_inc_dec() @test
 {
 	int[<3>] x;
 	int[<3>] y;
@@ -13,7 +13,7 @@ fn void! vector_inc_dec() @test
 	assert(g == { 1, 1, 0 });
 }
 
-fn void! int_inc_dec() @test
+fn void int_inc_dec() @test
 {
 	int x;
 	assert(x++ == 0);
@@ -23,7 +23,7 @@ fn void! int_inc_dec() @test
 	assert(--x == 0);
 }
 
-fn void! float_inc_dec() @test
+fn void float_inc_dec() @test
 {
 	double x;
 	assert(x++ == 0);

test/unit/regression/int_min.c3

@@ -1,4 +1,4 @@
-fn void! int_min() @test
+fn void int_min() @test
 {
 	assert(int.min == -2147483648);
 	assert((float)int.min == -2147483648.0f);

test/unit/regression/swizzle.c3

@@ -8,7 +8,7 @@ fn void test_swizzle()
 	assert($$swizzle2(a, b, 0, 1, 4, 6, 2) == int[<5>] { 1, 2, 100, 10000, 3 });
 }
 
-fn void! swizzle_builtin()
+fn void swizzle_builtin()
 {
 	int[<4>] abc = { 1, 2, 3, 4 };
 	assert(abc.rb == { 1, 3 });

test/unit/regression/unwrapping.c3

@@ -5,7 +5,7 @@ fn bool! get_bool()
     return true;
 }
 
-fn void! bool_chain_unwrap() @test
+fn void bool_chain_unwrap() @test
 {
     bool b;
     if (try v = get_bool() && b)

test/unit/regression/vector_method_reduce.c3

@@ -1,6 +1,6 @@
 import std::math;
 
-fn void! vector_method_reduce() @test
+fn void vector_method_reduce() @test
 {
 	float[<3>] x = { 1, 2.0, 4.0 };
 	int[<*>] y = { -23, 1, 4 };

test/unit/regression/vector_ops.c3

@@ -1,6 +1,6 @@
 import std::io;
 
-fn void! test_int_mod() @test
+fn void test_int_mod() @test
 {
 	int[<2>] y = { 10, 99 };
 	int[<2>] z = { 3, 5 };
@@ -10,7 +10,7 @@ fn void! test_int_mod() @test
 	assert(int[<2>]{ 10, 99 } / int[<2>]{ 3, 5 } == { 3, 19 });
 }
 
-fn void! test_conv() @test
+fn void test_conv() @test
 {
     float[<4>] y = { 1, 2, 3, 4 };
     float[<4>] z = { 0, 2, 2, -100 };
@@ -35,7 +35,7 @@ fn void! test_conv() @test
 	assert(b == { true, false });
 }
 
-fn void! testf() @test
+fn void testf() @test
 {
 	float[<4>] x = { 4, 0, -1, 33 };
 	assert({ true, false, true, true} == (bool[<4>])x);
@@ -63,7 +63,7 @@ fn void! testf() @test
     assert(ww == { -1, 0, -1, -1 });
 }
 
-fn void! testb() @test
+fn void testb() @test
 {
     bool[<4>] y = { true, false, true, true };
     bool[<4>] z = { false, false, true, true };
@@ -81,7 +81,7 @@ fn void! testb() @test
 	assert(ww == { -1, 0, 0, 0 });
 }
 
-fn void! testi() @test
+fn void testi() @test
 {
 	int[<4>] x = { 4, 0, -1, 33 };
 	assert({ true, false, true, true} == (bool[<4>])x);

test/unit/stdlib/atomic.c3

@@ -5,7 +5,7 @@ import std::atomic;
 uint a;
 float fa;
 
-fn void! add() @test
+fn void add() @test
 {
 	Thread[100] ts;
 	a = 0;
@@ -33,16 +33,16 @@ fn void! add() @test
 			thread::sleep_ms(5);
 			atomic::fetch_add(&a, 5);
 				return 0;
-		}, null)!;
+		}, null)!!;
 	}
 	foreach (&t : ts)
 	{
-		assert(t.join()! == 0);
+		assert(t.join()!! == 0);
 	}
 	assert(a == ts.len * 10 * 5, "Threads returned %d, expected %d", a, ts.len * 10 * 5);
 }
 
-fn void! sub() @test
+fn void sub() @test
 {
 	Thread[100] ts;
 	a = ts.len * 10 * 5;
@@ -70,16 +70,16 @@ fn void! sub() @test
 			thread::sleep_ms(5);
 			atomic::fetch_sub(&a, 5);
 				return 0;
-		}, null)!;
+		}, null)!!;
 	}
 	foreach (&t : ts)
 	{
-		assert(t.join()! == 0);
+		assert(t.join()!! == 0);
 	}
 	assert(a == 0, "Threads returned %d, expected %d", a, 0);
 }
 
-fn void! div() @test
+fn void div() @test
 {
 	Thread[8] ts;
 	a = 8 * 8 * 8 * 8 * 8 * 8 * 8 * 8 * 8;
@@ -89,16 +89,16 @@ fn void! div() @test
 			thread::sleep_ms(5);
 			atomic::fetch_div(&a, 8);
 				return 0;
-		}, null)!;
+		}, null)!!;
 	}
 	foreach (&t : ts)
 	{
-		assert(t.join()! == 0);
+		assert(t.join()!! == 0);
 	}
 	assert(a == 8, "Threads returned %d, expected %d", a, 8);
 }
 
-fn void! max() @test
+fn void max() @test
 {
 	Thread[100] ts;
 	a = 0;
@@ -125,16 +125,16 @@ fn void! max() @test
 			atomic::fetch_max(&a, la);
 			la++;
 				return 0;
-		}, null)!;
+		}, null)!!;
 	}
 	foreach (&t : ts)
 	{
-		assert(t.join()! == 0);
+		assert(t.join()!! == 0);
 	}
 	assert(a == 5, "Threads returned %d, expected %d", a, 5);
 }
 
-fn void! min() @test
+fn void min() @test
 {
 	Thread[100] ts;
 	a = 10;
@@ -161,16 +161,16 @@ fn void! min() @test
 			atomic::fetch_min(&a, la);
 			la--;
 				return 0;
-		}, null)!;
+		}, null)!!;
 	}
 	foreach (&t : ts)
 	{
-		assert(t.join()! == 0);
+		assert(t.join()!! == 0);
 	}
 	assert(a == 0, "Threads returned %d, expected %d", a, 0);
 }
 
-fn void! fadd() @test
+fn void fadd() @test
 {
 	Thread[100] ts;
 	fa = 0;
@@ -198,16 +198,16 @@ fn void! fadd() @test
 			thread::sleep_ms(5);
 			atomic::fetch_add(&fa, 0.5f);
 				return 0;
-		}, null)!;
+		}, null)!!;
 	}
 	foreach (&t : ts)
 	{
-		assert(t.join()! == 0);
+		assert(t.join()!! == 0);
 	}
 	assert(fa == ts.len * 10 * 0.5, "Threads returned %f, expected %f", fa, ts.len * 10 * 0.5);
 }
 
-fn void! fsub() @test
+fn void fsub() @test
 {
 	Thread[100] ts;
 	fa = ts.len * 10 * 0.5;
@@ -235,11 +235,11 @@ fn void! fsub() @test
 			thread::sleep_ms(5);
 			atomic::fetch_sub(&fa, 0.5f);
 				return 0;
-		}, null)!;
+		}, null)!!;
 	}
 	foreach (&t : ts)
 	{
-		assert(t.join()! == 0);
+		assert(t.join()!! == 0);
 	}
 	assert(fa == 0, "Threads returned %f, expected %f", fa, 0);
 }

test/unit/stdlib/atomic_types.c3

@@ -7,7 +7,7 @@ def AtomicFloat = Atomic(<float>);
 AtomicUint a;
 AtomicFloat fa;
 
-fn void! add() @test
+fn void add() @test
 {
 	Thread[100] ts;
 	a.store(0);
@@ -35,16 +35,16 @@ fn void! add() @test
 			thread::sleep_ms(5);
 			a.add(5);
 				return 0;
-		}, null)!;
+		}, null)!!;
 	}
 	foreach (&t : ts)
 	{
-		assert(t.join()! == 0);
+		assert(t.join()!! == 0);
 	}
 	assert(a.load() == ts.len * 10 * 5, "Threads returned %d, expected %d", a.load(), ts.len * 10 * 5);
 }
 
-fn void! sub() @test
+fn void sub() @test
 {
 	Thread[100] ts;
 	a.store(ts.len * 10 * 5);
@@ -72,16 +72,16 @@ fn void! sub() @test
 			thread::sleep_ms(5);
 			a.sub(5);
 				return 0;
-		}, null)!;
+		}, null)!!;
 	}
 	foreach (&t : ts)
 	{
-		assert(t.join()! == 0);
+		assert(t.join()!! == 0);
 	}
 	assert(a.load() == 0, "Threads returned %d, expected %d", a.load(), 0);
 }
 
-fn void! fadd() @test
+fn void fadd() @test
 {
 	Thread[100] ts;
 	fa.store(0);
@@ -109,16 +109,16 @@ fn void! fadd() @test
 			thread::sleep_ms(5);
 			fa.add(0.5);
 				return 0;
-		}, null)!;
+		}, null)!!;
 	}
 	foreach (&t : ts)
 	{
-		assert(t.join()! == 0);
+		assert(t.join()!! == 0);
 	}
 	assert(fa.load() == ts.len * 10 * 0.5, "Threads returned %f, expected %f", fa.load(), ts.len * 10 * 0.5);
 }
 
-fn void! fsub() @test
+fn void fsub() @test
 {
 	Thread[100] ts;
 	fa.store(ts.len * 10 * 0.5);
@@ -146,11 +146,11 @@ fn void! fsub() @test
 			thread::sleep_ms(5);
 			fa.sub(0.5);
 				return 0;
-		}, null)!;
+		}, null)!!;
 	}
 	foreach (&t : ts)
 	{
-		assert(t.join()! == 0);
+		assert(t.join()!! == 0);
 	}
 	assert(fa.load() == 0, "Threads returned %f, expected %f", fa.load(), 0);
 }

test/unit/stdlib/collections/bitset.c3

@@ -8,7 +8,7 @@ def List = List(<usz>);
 
 def BitSet = BitSet(<2048>);
 
-fn void! set_get()
+fn void set_get()
 {
 	BitSet bs;
 	assert(bs.cardinality() == 0);
@@ -47,7 +47,7 @@ fn void! set_get()
 }
 
 def GrowableBitSet = GrowableBitSet(<char>);
-fn void! growable_set_get()
+fn void growable_set_get()
 {
 	GrowableBitSet bs;
 	bs.temp_init();

test/unit/stdlib/collections/copy_map.c3

@@ -3,7 +3,7 @@ import std::io;
 import std::collections::map;
 
 def IntMap = HashMap(<String, int>);
-fn void! copy_map() @test
+fn void copy_map() @test
 {
 	TrackingAllocator alloc;
 	alloc.init(allocator::heap());
@@ -20,9 +20,9 @@ fn void! copy_map() @test
 		y.clear();
 		y.append("bye");
 		x.set(y.str_view(), 444);
-		assert(x.get("hello")! == 123);
-		assert(x.get("hellobye")! == 333);
-		assert(x.get("bye")! == 444);
+		assert(x.get("hello")!! == 123);
+		assert(x.get("hellobye")!! == 333);
+		assert(x.get("bye")!! == 444);
 		assert(alloc.allocated() > 0);
 		x.free();
 		y.free();
@@ -36,7 +36,7 @@ fn void! copy_map() @test
 	Otherwise when the map is freed, the copied-in keys will also be freed,
 	resulting in use-after-free.
 */
-fn void! copy_keys() @test
+fn void copy_keys() @test
 {
 	String[] y;
 	@pool() {

test/unit/stdlib/collections/elastic_array.c3

@@ -4,7 +4,7 @@ import std::collections::elastic_array;
 def IntList = ElasticArray(<int, 10>);
 def PtrList = ElasticArray(<void*, 10>);
 
-fn void! delete_contains_index()
+fn void delete_contains_index()
 {
 	IntList test;
 	test.add_array({ 1, 2 });
@@ -26,14 +26,14 @@ fn void! delete_contains_index()
 	test.push(0);
 	test.insert_at(0, 0);
 	assert(test.array_view() == int[]{ 0, 2, 3, 0 });
-	assert(test.index_of(0)! == 0);
-	assert(test.rindex_of(0)! == 3);
+	assert(test.index_of(0)!! == 0);
+	assert(test.rindex_of(0)!! == 3);
 	test.remove_item(0);
 	assert(test.len() == 2);
 	assert(test.array_view() == int[]{ 2, 3 });
 }
 
-fn void! compact()
+fn void compact()
 {
 	PtrList test;
 	test.add_array({ null, &test });
@@ -46,7 +46,7 @@ fn void! compact()
 	assert(test.compact() == 0);
 }
 
-fn void! reverse()
+fn void reverse()
 {
 	IntList test;
 	test.reverse();
@@ -61,7 +61,7 @@ fn void! reverse()
 	assert(test.array_view() == int[] { 10, 1, 2, 3 });
 }
 
-fn void! remove_if()
+fn void remove_if()
 {
 	IntList test;
 	usz removed;
@@ -79,7 +79,7 @@ fn void! remove_if()
 }
 
 
-fn void! remove_using_test()
+fn void remove_using_test()
 {
 	IntList test;
 	usz removed;
@@ -96,7 +96,7 @@ fn void! remove_using_test()
 	assert(test.array_view() == int[]{11, 10, 20});
 }
 
-fn void! retain_if()
+fn void retain_if()
 {
 	IntList test;
 	usz removed;
@@ -113,7 +113,7 @@ fn void! retain_if()
 	assert(test.array_view() == int[]{11, 10, 20});
 }
 
-fn void! retain_using_test()
+fn void retain_using_test()
 {
 	IntList test;
 	usz removed;

test/unit/stdlib/collections/enummap.c3

@@ -10,7 +10,7 @@ enum FooEnum
 
 def FooEnumMap = EnumMap(<FooEnum, uint>);
 
-fn void! enums()
+fn void enums()
 {
     FooEnumMap nm;
     nm.set(ONE, 1);

test/unit/stdlib/collections/linkedlist.c3

@@ -3,33 +3,33 @@ import std::collections::linkedlist;
 
 def IntList = LinkedList(<int>);
 
-fn void! test_push_front()
+fn void test_push_front()
 {
 	IntList list;
 	list.push_front(23);
 	assert(list.len() == 1);
-	assert(list.first()! == 23);
-	assert(list.last()! == 23);
+	assert(list.first()!! == 23);
+	assert(list.last()!! == 23);
 	list.push_front(55);
 	assert(list.len() == 2);
-	assert(list.last()! == 23);
-	assert(list.first()! == 55);
+	assert(list.last()!! == 23);
+	assert(list.first()!! == 55);
 }
 
-fn void! test_push()
+fn void test_push()
 {
 	IntList list;
 	list.push(23);
 	assert(list.len() == 1);
-	assert(list.first()! == 23);
-	assert(list.last()! == 23);
+	assert(list.first()!! == 23);
+	assert(list.last()!! == 23);
 	list.push(55);
 	assert(list.len() == 2);
-	assert(list.last()! == 55);
-	assert(list.first()! == 23);
+	assert(list.last()!! == 55);
+	assert(list.first()!! == 23);
 }
 
-fn void! test_get()
+fn void test_get()
 {
 	IntList list;
 	list.push(23);
@@ -40,7 +40,7 @@ fn void! test_get()
 	assert(list.get(0) == 23);
 }
 
-fn void! test_insert()
+fn void test_insert()
 {
 	IntList list;
 	list.push(-3);
@@ -59,7 +59,7 @@ fn void! test_insert()
 	assert(list.get(6) == 1111);
 }
 
-fn void! test_set()
+fn void test_set()
 {
 	IntList list;
     list.push(-3);
@@ -71,7 +71,7 @@ fn void! test_set()
 	assert(list.get(2) == 24);
 }
 
-fn void! test_remove_at()
+fn void test_remove_at()
 {
 	IntList list;
 	for (int i = 0; i < 10; i++) list.push(i);
@@ -85,7 +85,7 @@ fn void! test_remove_at()
 	assert(list.get(4) == 6);
 }
 
-fn void! test_remove()
+fn void test_remove()
 {
 	IntList list;
 	list.push(2);
@@ -95,79 +95,79 @@ fn void! test_remove()
 	assert(list.len() == 2);
 }
 
-fn void! test_remove_first_match()
+fn void test_remove_first_match()
 {
 	IntList list;
 	list.push(23);
 	list.push(55);
 	list.push(-3);
 	assert(list.remove_first_match(23));
-	assert(list.pop()! == -3);
-	assert(list.pop()! == 55);
+	assert(list.pop()!! == -3);
+	assert(list.pop()!! == 55);
 	assert(!list.len());
 
 	list.push(23);
 	list.push(55);
 	list.push(-3);
 	assert(list.remove_first_match(55));
-	assert(list.pop()! == -3);
-	assert(list.pop()! == 23);
+	assert(list.pop()!! == -3);
+	assert(list.pop()!! == 23);
 	assert(!list.len());
 
 	list.push(23);
 	list.push(55);
 	list.push(-3);
 	assert(list.remove_first_match(-3));
-	assert(list.pop()! == 55);
-	assert(list.pop()! == 23);
+	assert(list.pop()!! == 55);
+	assert(list.pop()!! == 23);
 	assert(!list.len());
 }
 
-fn void! test_remove_last_match()
+fn void test_remove_last_match()
 {
 	IntList list;
 	list.push(23);
 	list.push(55);
 	list.push(-3);
 	assert(list.remove_last_match(23));
-	assert(list.pop()! == -3);
-	assert(list.pop()! == 55);
+	assert(list.pop()!! == -3);
+	assert(list.pop()!! == 55);
 	assert(!list.len());
 
 	list.push(23);
 	list.push(55);
 	list.push(-3);
 	assert(list.remove_last_match(55));
-	assert(list.pop()! == -3);
-	assert(list.pop()! == 23);
+	assert(list.pop()!! == -3);
+	assert(list.pop()!! == 23);
 	assert(!list.len());
 
 	list.push(23);
 	list.push(55);
 	list.push(-3);
 	assert(list.remove_last_match(-3));
-	assert(list.pop()! == 55);
-	assert(list.pop()! == 23);
+	assert(list.pop()!! == 55);
+	assert(list.pop()!! == 23);
 	assert(!list.len());
 }
 
-fn void! test_pop()
+fn void test_pop()
 {
 	IntList list;
 	list.push(23);
 	list.push(55);
 	list.push(-3);
 	assert(list.len() == 3);
-	assert(list.first()! == 23);
-	assert(list.last()! == -3);
-	assert(list.pop()! == -3);
+	assert(list.first()!! == 23);
+	assert(list.last()!! == -3);
+	assert(list.pop()!! == -3);
 	assert(list.len() == 2);
-	assert(list.first()! == 23);
-	assert(list.last()! == 55);
-	assert(list.pop()! == 55);
-	assert(list.first()! == 23);
-	assert(list.last()! == 23);
-	assert(list.pop()! == 23);
+	assert(list.first()!! == 23);
+	assert(list.last()!! == 55);
+	assert(list.pop()!! == 55);
+	assert(list.first()!! == 23);
+	assert(list.last()!! == 23);
+	assert(list.pop()!! == 23);
 	assert(list.len() == 0);
 	assert(@catch(list.pop()));
 	assert(list.len() == 0);
@@ -175,22 +175,22 @@ fn void! test_pop()
 	assert(list.len() == 1);
 }
 
-fn void! test_remove_last()
+fn void test_remove_last()
 {
 	IntList list;
 	list.push(23);
 	list.push(55);
 	list.push(-3);
 	assert(list.len() == 3);
-	assert(list.first()! == 23);
-	assert(list.last()! == -3);
+	assert(list.first()!! == 23);
+	assert(list.last()!! == -3);
 	assert(@ok(list.remove_last()));
 	assert(list.len() == 2);
-	assert(list.first()! == 23);
-	assert(list.last()! == 55);
+	assert(list.first()!! == 23);
+	assert(list.last()!! == 55);
 	assert(@ok(list.remove_last()));
-	assert(list.first()! == 23);
-	assert(list.last()! == 23);
+	assert(list.first()!! == 23);
+	assert(list.last()!! == 23);
 	assert(@ok(list.remove_last()));
 	assert(list.len() == 0);
 	assert(@catch(list.pop()));
@@ -199,22 +199,22 @@ fn void! test_remove_last()
 	assert(list.len() == 1);
 }
 
-fn void! test_remove_first()
+fn void test_remove_first()
 {
 	IntList list;
 	list.push(23);
 	list.push(55);
 	list.push(-3);
 	assert(list.len() == 3);
-	assert(list.first()! == 23);
-	assert(list.last()! == -3);
+	assert(list.first()!! == 23);
+	assert(list.last()!! == -3);
 	assert(@ok(list.remove_first()));
 	assert(list.len() == 2);
-	assert(list.last()! == -3);
-	assert(list.first()! == 55);
+	assert(list.last()!! == -3);
+	assert(list.first()!! == 55);
 	assert(@ok(list.remove_first()));
-	assert(list.last()! == -3);
-	assert(list.first()! == -3);
+	assert(list.last()!! == -3);
+	assert(list.first()!! == -3);
 	assert(@ok(list.remove_first()));
 	assert(list.len() == 0);
 	assert(@catch(list.remove_first()));

test/unit/stdlib/collections/list.c3

@@ -19,7 +19,7 @@ fn void overaligned_type()
 }
 
 
-fn void! delete_contains_index()
+fn void delete_contains_index()
 {
 	IntList test;
 	test.add_array({ 1, 2 });
@@ -41,14 +41,14 @@ fn void! delete_contains_index()
 	test.push(0);
 	test.insert_at(0, 0);
 	assert(test.array_view() == int[]{ 0, 2, 3, 0 });
-	assert(test.index_of(0)! == 0);
-	assert(test.rindex_of(0)! == 3);
+	assert(test.index_of(0)!! == 0);
+	assert(test.rindex_of(0)!! == 3);
 	test.remove_item(0);
 	assert(test.len() == 2);
 	assert(test.array_view() == int[]{ 2, 3 });
 }
 
-fn void! compact()
+fn void compact()
 {
 	PtrList test;
 	test.add_array({ null, &test });
@@ -61,7 +61,7 @@ fn void! compact()
 	assert(test.compact() == 0);
 }
 
-fn void! reverse()
+fn void reverse()
 {
 	IntList test;
 	test.reverse();
@@ -76,7 +76,7 @@ fn void! reverse()
 	assert(test.array_view() == int[] { 10, 1, 2, 3 });
 }
 
-fn void! remove_if()
+fn void remove_if()
 {
 	IntList test;
 	usz removed;
@@ -93,7 +93,7 @@ fn void! remove_if()
 	assert(test.array_view() == int[]{11, 10, 20});
 }
 
-fn void! init_with_array()
+fn void init_with_array()
 {
 	IntList foo;
 	foo.new_init_with_array({ 1, 2, 3});
@@ -101,7 +101,7 @@ fn void! init_with_array()
 	assert(foo[2] == 3);
 }
 
-fn void! init_with_temp_array()
+fn void init_with_temp_array()
 {
 	IntList foo;
 	foo.temp_init_with_array({ 1, 2, 3});
@@ -109,7 +109,7 @@ fn void! init_with_temp_array()
 	assert(foo[2] == 3);
 }
 
-fn void! remove_using_test()
+fn void remove_using_test()
 {
 	IntList test;
 	usz removed;
@@ -126,7 +126,7 @@ fn void! remove_using_test()
 	assert(test.array_view() == int[]{11, 10, 20});
 }
 
-fn void! retain_if()
+fn void retain_if()
 {
 	IntList test;
 	usz removed;
@@ -143,7 +143,7 @@ fn void! retain_if()
 	assert(test.array_view() == int[]{11, 10, 20});
 }
 
-fn void! retain_using_test()
+fn void retain_using_test()
 {
 	IntList test;
 	usz removed;

test/unit/stdlib/collections/object.c3

@@ -6,17 +6,17 @@ fn void test_general()
 	Object* root = object::new_obj(allocator::heap());
 	root.set("foo", 1);
 	root.set("bar", "baz");
-	assert(root.get_int("foo")! == 1);
-	assert(root.get_string("bar")! == "baz");
+	assert(root.get_int("foo")!! == 1);
+	assert(root.get_string("bar")!! == "baz");
 	Object* goo = root.set("goo", object::new_obj(allocator::heap()));
 	goo.push("hello");
 	goo.push(132);
-	assert(root.get("goo").get_int_at(1)! == 132);
-	assert(root.get("goo").get_string_at(0)! == "hello");
+	assert(root.get("goo").get_int_at(1)!! == 132);
+	assert(root.get("goo").get_string_at(0)!! == "hello");
 	Object* abc = root.get_or_create_obj("abc80");
 	abc.set("cool", 1.3);
-	assert(root.get("abc80").get_int("cool")! == 1);
-	assert(root.get("abc80").get_float("cool")! == 1.3);
+	assert(root.get("abc80").get_int("cool")!! == 1);
+	assert(root.get("abc80").get_float("cool")!! == 1.3);
 	assert((root.get_int("yyy") ?? -1) == -1);
 	root.set("yyy", true);
 	assert(root.get_bool("yyy") ?? false);

test/unit/stdlib/collections/priorityqueue.c3

@@ -4,7 +4,7 @@ import std::collections::priorityqueue;
 
 def Queue = PriorityQueue(<int>);
 
-fn void! priorityqueue()
+fn void priorityqueue()
 {
     Queue q;
     assert(q.is_empty());
@@ -14,25 +14,25 @@ fn void! priorityqueue()
     assert(q.len() == 2);
 
     int x;
-    x = q.pop()!;
+    x = q.pop()!!;
     assert(x == 1, "got %d; want %d", x, 1);
-    x = q.pop()!;
+    x = q.pop()!!;
     assert(x == 2, "got %d; want %d", x, 2);
 
     q.push(3);
     q.push(2);
     q.push(1);
-    x = q.pop()!;
+    x = q.pop()!!;
     assert(x == 1, "got %d; want %d", x, 1);
-    x = q.pop()!;
+    x = q.pop()!!;
     assert(x == 2, "got %d; want %d", x, 2);
-    x = q.pop()!;
+    x = q.pop()!!;
     assert(x == 3, "got %d; want %d", x, 3);
 }
 
 def QueueMax = PriorityQueueMax(<int>);
 
-fn void! priorityqueue_max()
+fn void priorityqueue_max()
 {
     QueueMax q;
     assert(q.is_empty());
@@ -42,18 +42,18 @@ fn void! priorityqueue_max()
     assert(q.len() == 2);
 
     int x;
-    x = q.pop()!;
+    x = q.pop()!!;
     assert(x == 2, "got %d; want %d", x, 2);
-    x = q.pop()!;
+    x = q.pop()!!;
     assert(x == 1, "got %d; want %d", x, 1);
 
     q.push(3);
     q.push(2);
     q.push(1);
-    x = q.pop()!;
+    x = q.pop()!!;
     assert(x == 3, "got %d; want %d", x, 3);
-    x = q.pop()!;
+    x = q.pop()!!;
     assert(x == 2, "got %d; want %d", x, 2);
-    x = q.pop()!;
+    x = q.pop()!!;
     assert(x == 1, "got %d; want %d", x, 1);
 }

test/unit/stdlib/collections/range.c3

@@ -4,7 +4,7 @@ import std::collections::range;
 def IntRange = Range(<int>);
 def IntExRange = ExclusiveRange(<int>);
 
-fn void! test_range()
+fn void test_range()
 {
 	IntRange range = { -4, 2 };
 	int sum = 0;
@@ -19,7 +19,7 @@ fn void! test_range()
 	assert(!range.contains(3));
 }
 
-fn void! test_exrange()
+fn void test_exrange()
 {
 	IntExRange range = { -4, 2 };
 	int sum = 0;

test/unit/stdlib/collections/ringbuffer.c3

@@ -4,7 +4,7 @@ import std::io;
 
 def Buffer = RingBuffer(<char, 4>);
 
-fn void! push_get()
+fn void push_get()
 {
 	Buffer rb;
 	rb.init();
@@ -24,6 +24,6 @@ fn void! push_get()
 	assert(rb.get(2) == 4);
 	assert(rb.get(3) == 5);
 
-	char c = rb.pop()!;
+	char c = rb.pop()!!;
 	assert(c == 5);
 }

test/unit/stdlib/conv_tests.c3

@@ -26,42 +26,42 @@ fn void assert_utf8_is_error(String in)
 	assert(@catch(conv::utf8_to_char32(in.ptr, &len)), "Expected error");
 }
 
-fn void! test_char32_ut8_boundary() @test
+fn void test_char32_ut8_boundary() @test
 {
 	// First sequence per len
-	comparison_helper_32_to_8(0x00000000, { 0 })!;
-	comparison_helper_32_to_8(0x00000080, { 0xc2, 0x80 })!;
-	comparison_helper_32_to_8(0x00000800, { 0xe0, 0xa0, 0x80 })!;
-	comparison_helper_32_to_8(0x00010000, { 0xf0, 0x90, 0x80, 0x80 })!;
+	comparison_helper_32_to_8(0x00000000, { 0 })!!;
+	comparison_helper_32_to_8(0x00000080, { 0xc2, 0x80 })!!;
+	comparison_helper_32_to_8(0x00000800, { 0xe0, 0xa0, 0x80 })!!;
+	comparison_helper_32_to_8(0x00010000, { 0xf0, 0x90, 0x80, 0x80 })!!;
 	assert(@catch(comparison_helper_32_to_8(0x10ffff + 1, { 0 })), "Expected error");
 	// Last seq per len
-	comparison_helper_32_to_8(0x0000007f, { 0x7f })!;
-	comparison_helper_32_to_8(0x000007ff, { 0xdf, 0xbf })!;
-	comparison_helper_32_to_8(0x0000ffff, { 0xef, 0xbf, 0xbf })!;
-	comparison_helper_32_to_8(0x0010ffff, { 0xf4, 0x8f, 0xbf, 0xbf })!;
+	comparison_helper_32_to_8(0x0000007f, { 0x7f })!!;
+	comparison_helper_32_to_8(0x000007ff, { 0xdf, 0xbf })!!;
+	comparison_helper_32_to_8(0x0000ffff, { 0xef, 0xbf, 0xbf })!!;
+	comparison_helper_32_to_8(0x0010ffff, { 0xf4, 0x8f, 0xbf, 0xbf })!!;
 	// Other boundaries
-	comparison_helper_32_to_8(0x0000d7ff, { 0xed, 0x9f, 0xbf})!;
-	comparison_helper_32_to_8(0x0000e000, { 0xee, 0x80, 0x80 })!;
-	comparison_helper_32_to_8(0x0000fffd, { 0xef, 0xbf, 0xbd })!;
+	comparison_helper_32_to_8(0x0000d7ff, { 0xed, 0x9f, 0xbf})!!;
+	comparison_helper_32_to_8(0x0000e000, { 0xee, 0x80, 0x80 })!!;
+	comparison_helper_32_to_8(0x0000fffd, { 0xef, 0xbf, 0xbd })!!;
 
 }
 
-fn void! test_utf8_to_char32_boundary() @test
+fn void test_utf8_to_char32_boundary() @test
 {
 	// First sequence per len
-	comparison_helper_8_to_32("\0", 0x0 )!;
-	comparison_helper_8_to_32({ 0xc2, 0x80 }, 0x80)!;
-	comparison_helper_8_to_32({ 0xe0, 0xa0, 0x80 }, 0x800 )!;
-	comparison_helper_8_to_32({ 0xf0, 0x90, 0x80, 0x80 }, 0x10000)!;
+	comparison_helper_8_to_32("\0", 0x0 )!!;
+	comparison_helper_8_to_32({ 0xc2, 0x80 }, 0x80)!!;
+	comparison_helper_8_to_32({ 0xe0, 0xa0, 0x80 }, 0x800 )!!;
+	comparison_helper_8_to_32({ 0xf0, 0x90, 0x80, 0x80 }, 0x10000)!!;
 	// Last seq per len
-	comparison_helper_8_to_32({ 0x7f }, 0x7f)!;
-	comparison_helper_8_to_32({ 0xdf, 0xbf }, 0x7ff )!;
-	comparison_helper_8_to_32({ 0xef, 0xbf, 0xbf }, 0xffff)!;
-	comparison_helper_8_to_32({ 0xf4, 0x8f, 0xbf, 0xbf }, 0x10ffff)!;
+	comparison_helper_8_to_32({ 0x7f }, 0x7f)!!;
+	comparison_helper_8_to_32({ 0xdf, 0xbf }, 0x7ff )!!;
+	comparison_helper_8_to_32({ 0xef, 0xbf, 0xbf }, 0xffff)!!;
+	comparison_helper_8_to_32({ 0xf4, 0x8f, 0xbf, 0xbf }, 0x10ffff)!!;
 	// Other boundaries
-	comparison_helper_8_to_32({ 0xed, 0x9f, 0xbf }, 0xd7ff)!;
-	comparison_helper_8_to_32({ 0xee, 0x80, 0x80 }, 0xe000)!;
-	comparison_helper_8_to_32({ 0xef, 0xbf, 0xbd }, 0xfffd)!;
+	comparison_helper_8_to_32({ 0xed, 0x9f, 0xbf }, 0xd7ff)!!;
+	comparison_helper_8_to_32({ 0xee, 0x80, 0x80 }, 0xe000)!!;
+	comparison_helper_8_to_32({ 0xef, 0xbf, 0xbd }, 0xfffd)!!;
 
 	assert_utf8_is_error({ 0x80 });
 	assert_utf8_is_error({ 0xbf });

test/unit/stdlib/core/array.c3

@@ -1,24 +1,24 @@
 module arraytests @test;
 
-fn void! find()
+fn void find()
 {
 	int[3] a = { 1, 2, 3 };
-	assert(array::index_of(a, 2)! == 1);
-	assert(array::index_of(a, 1)! == 0);
-	assert(array::index_of(a, 3)! == 2);
+	assert(array::index_of(a, 2)!! == 1);
+	assert(array::index_of(a, 1)!! == 0);
+	assert(array::index_of(a, 3)!! == 2);
 	assert(@catch(array::index_of(a, 4)) == SearchResult.MISSING);
 }
 
-fn void! find_subarray()
+fn void find_subarray()
 {
 	int[] a = { 1, 2, 3 };
-	assert(array::index_of(a, 2)! == 1);
-	assert(array::index_of(a, 1)! == 0);
-	assert(array::index_of(a, 3)! == 2);
+	assert(array::index_of(a, 2)!! == 1);
+	assert(array::index_of(a, 1)!! == 0);
+	assert(array::index_of(a, 3)!! == 2);
 	assert(@catch(array::index_of(a, 4)) == SearchResult.MISSING);
 }
 
-fn void! concat()
+fn void concat()
 {
 	int[3] a = { 1, 2, 3 };
 	(void)array::concat_new(a, a);

test/unit/stdlib/core/bitorder.c3

@@ -1,6 +1,6 @@
 module std::core::bitorder @test;
 
-fn void! test_read()
+fn void test_read()
 {
     char[*] bytes = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };
 
@@ -26,7 +26,7 @@ fn void! test_read()
     assert(bitorder::read(bytes[..], ULongLE) == 0x0807060504030201);
 }
 
-fn void! test_write()
+fn void test_write()
 {
     char[*] bytes = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };
     char[8] buf;

test/unit/stdlib/core/builtintests.c3

@@ -1,14 +1,14 @@
 module std::core::builtins @test;
 
-fn void! test_anycast()
+fn void test_anycast()
 {
 	int a;
 	any b = &a;
-	assert(anycast(b, int)! == &a);
+	assert(anycast(b, int)!! == &a);
 	assert(@catch(anycast(b, double)) == CastResult.TYPE_MISMATCH);
 }
 
-fn void! test_bitcast()
+fn void test_bitcast()
 {
 	int a = 123;
 	float z = bitcast(a, float);
@@ -21,10 +21,10 @@ enum Tester
 	DEF,
 }
 
-fn void! test_enum_by_name()
+fn void test_enum_by_name()
 {
-	assert(enum_by_name(Tester, "ABC")! == Tester.ABC);
-	assert(enum_by_name(Tester, "DEF")! == Tester.DEF);
+	assert(enum_by_name(Tester, "ABC")!! == Tester.ABC);
+	assert(enum_by_name(Tester, "DEF")!! == Tester.DEF);
 	assert(@catch(enum_by_name(Tester, "GHI")) == SearchResult.MISSING);
 }
 

test/unit/stdlib/core/runtime.c3

@@ -1,7 +1,7 @@
 module std::core::runtime_test;
 import std::sort;
 
-fn void! cmp_unit() @test
+fn void cmp_unit() @test
 {
 	TestUnit[] list = {
     	{ .name = "http::url_test::url_query" },

test/unit/stdlib/core/string.c3

@@ -123,11 +123,11 @@ fn void test_split_skip_empty()
 	assert(strings[1] == "b||c|");
 }
 
-fn void! test_split_to_buffer_skip_empty()
+fn void test_split_to_buffer_skip_empty()
 {
 	String[10] buffer;
 	String test = "abc|b||c|";
-	String[] strings = test.split_to_buffer("|", &buffer, skip_empty: true)!;
+	String[] strings = test.split_to_buffer("|", &buffer, skip_empty: true)!!;
 	assert(strings.len == 3);
 	assert(strings[0] == "abc");
 	assert(strings[1] == "b");
@@ -138,11 +138,11 @@ fn void! test_split_to_buffer_skip_empty()
 	assert(strings[1] == "b||c|");
 }
 
-fn void! test_split_to_buffer()
+fn void test_split_to_buffer()
 {
 	String[5] b;
 	String test = "abc|b||c|";
-	String[] strings = test.split_to_buffer("|", &b)!;
+	String[] strings = test.split_to_buffer("|", &b)!!;
 	assert(strings.len == 5);
 	assert(strings[0] == "abc");
 	assert(strings[1] == "b");
@@ -157,46 +157,46 @@ fn void! test_split_to_buffer()
 	assert(strings[1] == "b||c|");
 }
 
-fn void! test_index_of()
+fn void test_index_of()
 {
 	String test = "hello world hello";
-	assert(test.index_of("o")! == 4);
-	assert(test.index_of("ll")! == 2);
-	assert(test.index_of(" hello")! == 11);
+	assert(test.index_of("o")!! == 4);
+	assert(test.index_of("ll")!! == 2);
+	assert(test.index_of(" hello")!! == 11);
 	assert(@catch(test.index_of("wi")));
 }
 
-fn void! test_rindex_of()
+fn void test_rindex_of()
 {
 	String test = "hello world hello";
-	assert(test.rindex_of("o")! == 16);
-	assert(test.rindex_of("ll")! == 14);
-	assert(test.rindex_of("he")! == 12);
-	assert(test.rindex_of("world")! == 6);
-	assert(test.rindex_of("hello ")! == 0);
+	assert(test.rindex_of("o")!! == 16);
+	assert(test.rindex_of("ll")!! == 14);
+	assert(test.rindex_of("he")!! == 12);
+	assert(test.rindex_of("world")!! == 6);
+	assert(test.rindex_of("hello ")!! == 0);
 	assert(@catch(test.rindex_of("wi")));
 }
 
-fn void! test_index_of_char()
+fn void test_index_of_char()
 {
 	String test = "hello world hello";
-	assert(test.index_of_char('o')! == 4);
-	assert(test.index_of_char('l')! == 2);
-	assert(test.index_of_char('h')! == 0);
+	assert(test.index_of_char('o')!! == 4);
+	assert(test.index_of_char('l')!! == 2);
+	assert(test.index_of_char('h')!! == 0);
 	assert(@catch(test.index_of_char('x')));
 }
 
-fn void! test_rindex_of_char()
+fn void test_rindex_of_char()
 {
 	String test = "hello world hello";
-	assert(test.rindex_of_char('o')! == 16);
-	assert(test.rindex_of_char('l')! == 15);
-	assert(test.rindex_of_char('h')! == 12);
+	assert(test.rindex_of_char('o')!! == 16);
+	assert(test.rindex_of_char('l')!! == 15);
+	assert(test.rindex_of_char('h')!! == 12);
 	assert(@catch(test.index_of_char('x')));
 }
 
-fn void! test_hex_conversion()
+fn void test_hex_conversion()
 {
-	assert("0x123aCd".to_long()! == 0x123acd);
-	assert("123acD".to_long(16)! == 0x123acd);
+	assert("0x123aCd".to_long()!! == 0x123acd);
+	assert("123acD".to_long(16)!! == 0x123acd);
 }

test/unit/stdlib/core/string_iterator.c3

@@ -4,10 +4,10 @@ fn void test_at_start()
 {
     String test = "abcd";
     StringIterator iterator = test.iterator();
-    assert(iterator.get()! == 'a');
-    assert(iterator.peek()! == 'a');
-    iterator.next()!;
-    assert(iterator.next()! == 'b');
+    assert(iterator.get()!! == 'a');
+    assert(iterator.peek()!! == 'a');
+    iterator.next()!!;
+    assert(iterator.next()!! == 'b');
     assert(iterator.has_next());
 }
 
@@ -16,10 +16,10 @@ fn void test_general()
 { 
     String test = "åƦs1";
     StringIterator iterator = test.iterator();
-    assert(iterator.get()! == 'å');
-    iterator.next()!;
-    assert(iterator.peek()! == 'Ʀ');
-    assert(iterator.next()! == 'Ʀ');
+    assert(iterator.get()!! == 'å');
+    iterator.next()!!;
+    assert(iterator.peek()!! == 'Ʀ');
+    assert(iterator.next()!! == 'Ʀ');
     iterator.reset();
     assert(iterator.current == 0);
 }
@@ -29,7 +29,7 @@ fn void test_end()
     String test = "åƦ";
     StringIterator iterator = test.iterator();
     assert(@ok(iterator.next()));
-    assert(iterator.peek()! == 'Ʀ');
+    assert(iterator.peek()!! == 'Ʀ');
     assert(@ok(iterator.next()));
     assert(@catch(iterator.next()));
 }

test/unit/stdlib/crypto/rc4.c3

@@ -1,7 +1,7 @@
 import std::crypto;
 import std::io;
 
-fn void! rc_crypt() @test
+fn void rc_crypt() @test
 {
 	Rc4 rc;
 	rc.init(&&x"63727970746969");

test/unit/stdlib/encoding/base32.c3

@@ -92,16 +92,16 @@ fn void decode_nopadding()
 	decode_tests(hex_tests, &base32::HEX, base32::NO_PAD);
 }
 
-fn void! base32_api()
+fn void base32_api()
 {
 	@pool()
 	{
 		foreach (t : std_tests)
 		{
-			String got = base32::encode_temp(t.dec)!;
+			String got = base32::encode_temp(t.dec)!!;
 			assert(got == t.enc, "got: %s, want: %s", got, t.enc);
 
-			char[] got_chars = base32::decode_temp(t.enc)!;
+			char[] got_chars = base32::decode_temp(t.enc)!!;
 			assert(got_chars == t.dec, "got: %s, want: %s", got_chars, t.dec);
 		}
 	};

test/unit/stdlib/encoding/base64.c3

@@ -71,9 +71,9 @@ fn void decode()
     };
     foreach (tc : tcases)
     {
-        usz n = base64::decode_len(tc.in.len, base64::DEFAULT_PAD)!;
+        usz n = base64::decode_len(tc.in.len, base64::DEFAULT_PAD)!!;
         char[64] buf;
-        char[] res = base64::decode_buffer(tc.in, buf[:n])!;
+        char[] res = base64::decode_buffer(tc.in, buf[:n])!!;
         assert(res == tc.out);
     }
 }
@@ -92,14 +92,14 @@ fn void decode_nopadding()
     };
     foreach (tc : tcases)
     {
-        usz n = base64::decode_len(tc.in.len, base64::NO_PAD)!;
+        usz n = base64::decode_len(tc.in.len, base64::NO_PAD)!!;
         char[64] buf;
-        char[] res = base64::decode_buffer(tc.in, buf[:n], base64::NO_PAD)!;
+        char[] res = base64::decode_buffer(tc.in, buf[:n], base64::NO_PAD)!!;
         assert(res == tc.out);
     }
 }
 
-fn void! urlencode() {
+fn void urlencode() {
 	TestCase[] tcases = {
 		{ x"14fb9c03d97e", "FPucA9l-"},
 	};
@@ -114,7 +114,7 @@ fn void! urlencode() {
 			char[] res = base64::encode_buffer(t.in, buf[..], alphabet: &base64::URL);
 			assert (res == t.out, "got: %s, want: %s", (String)res, (String)t.out);
 
-			res = base64::decode_buffer(t.out, buf[..], alphabet: &base64::URL)!;
+			res = base64::decode_buffer(t.out, buf[..], alphabet: &base64::URL)!!;
 			assert (res == t.in, "got: %s, want: %s", (String)res, (String)t.in);
 
 		}

test/unit/stdlib/encoding/hex.c3

@@ -17,7 +17,7 @@ TestCase[] tests = {
 	{{0xe3, 0xa1}, "E3A1"},
 };
 
-fn void! encode()
+fn void encode()
 {
 	usz n;
 	char[64] buf;
@@ -33,17 +33,17 @@ fn void! encode()
 	}
 }
 
-fn void! decode()
+fn void decode()
 {
 	usz n;
 	char[64] buf;
 	foreach (t : tests)
 	{
-		n = hex::decode_bytes(t.enc, buf[..])!;
+		n = hex::decode_bytes(t.enc, buf[..])!!;
 		assert(t.dec == buf[:n], "decode failed: got: %s, want: %s", buf[:n], t.dec);
 		@pool()
 		{
-			assert(t.dec == hex::decode_temp(t.enc)!);
+			assert(t.dec == hex::decode_temp(t.enc)!!);
 		};
 	}
 }

test/unit/stdlib/encoding/json.c3

@@ -3,49 +3,49 @@ import std::collections::object;
 import std::io;
 import std::encoding::json;
 
-fn void! simple_test()
+fn void simple_test()
 {
 	ByteReader reader;
 	reader.init(`{ "b": 123, "c": [ { "d": 66 }, null, "hello\tworld", false, { "id": "xyz" } ] }`);
-	Object* o = json::parse(&reader)!;
+	Object* o = json::parse(&reader)!!;
 	defer o.free();
-	assert(o.get_int("b")! == 123);
-	assert(o.get("c").get_len()! == 5);
-	assert(o.get("c").get_at(0).get_int("d")! == 66);
-	assert(o.get("c").get_at(1).is_null()!);
-	assert(o.get("c").get_string_at(2)! == "hello\tworld");
-	assert(o.get("c").get_bool_at(3)! == false);
-	assert(o.get("c").get_at(4).get_string("id")! == "xyz");
+	assert(o.get_int("b")!! == 123);
+	assert(o.get("c").get_len()!! == 5);
+	assert(o.get("c").get_at(0).get_int("d")!! == 66);
+	assert(o.get("c").get_at(1).is_null()!!);
+	assert(o.get("c").get_string_at(2)!! == "hello\tworld");
+	assert(o.get("c").get_bool_at(3)!! == false);
+	assert(o.get("c").get_at(4).get_string("id")!! == "xyz");
 }
 
-fn void! simple_test2()
+fn void simple_test2()
 {
 	ByteReader reader;
 	reader.init(`{"jsonrpc":"2.0","id":null,"method":"initialize"}`);
-	Object* o = json::parse(&reader)!;
+	Object* o = json::parse(&reader)!!;
 	defer o.free();
 }
 
 
-fn void! test_string()
+fn void test_string()
 {
-	Object* o = json::parse_string(`{"jsonrpc":"2","id":null,"method":"initialize"}`)!;
+	Object* o = json::parse_string(`{"jsonrpc":"2","id":null,"method":"initialize"}`)!!;
 	defer o.free();
 	String s = string::tformat("%s", *o);
-	Object* o2 = json::parse_string(s)!;
+	Object* o2 = json::parse_string(s)!!;
 	defer o2.free();
 	String s2 = string::tformat("%s", *o2);
 	assert(s2 == s, "Unexpectedly got %s and not %s", s2, s);
 }
 
-fn void! test_temp_string()
+fn void test_temp_string()
 {
 	@pool()
 	{
-		Object* o = json::temp_parse_string(`{"jsonrpc":"2","id":null,"method":"initialize"}`)!;
+		Object* o = json::temp_parse_string(`{"jsonrpc":"2","id":null,"method":"initialize"}`)!!;
 		defer o.free();
 		String s = string::tformat("%s", *o);
-		Object* o2 = json::temp_parse_string(s)!;
+		Object* o2 = json::temp_parse_string(s)!!;
 		defer o2.free();
 		String s2 = string::tformat("%s", *o2);
 		assert(s2 == s, "Unexpectedly got %s and not %s", s2, s);

test/unit/stdlib/io/bits.c3

@@ -1,249 +1,249 @@
 module std::io::bits @test;
 import std::io;
 
-fn void! test_write_0b1() {
+fn void test_write_0b1() {
 	ByteWriter w;
 	w.temp_init();
 
 	BitWriter bw;
 	bw.init(&w);
 
-	bw.write_bits(0b11111111, 1)!;
-	bw.flush()!;
+	bw.write_bits(0b11111111, 1)!!;
+	bw.flush()!!;
 
 	assert(w.str_view() == x"80"); // 0b1000 0000
 }
 
-fn void! test_write_0b1111() {
+fn void test_write_0b1111() {
 	ByteWriter w;
 	w.temp_init();
 
 	BitWriter bw;
 	bw.init(&w);
 
-	bw.write_bits(0b11111111, 4)!;
-	bw.flush()!;
+	bw.write_bits(0b11111111, 4)!!;
+	bw.flush()!!;
 
 	assert(w.str_view() == x"f0"); // 0b1111 0000
 }
 
-fn void! test_write_0b1111_1111() {
+fn void test_write_0b1111_1111() {
 	ByteWriter w;
 	w.temp_init();
 
 	BitWriter bw;
 	bw.init(&w);
 
-	bw.write_bits(0b11111111, 8)!;
-	bw.flush()!;
+	bw.write_bits(0b11111111, 8)!!;
+	bw.flush()!!;
 
 	assert(w.str_view() == x"ff");
 }
 
-fn void! test_write_0b1000() {
+fn void test_write_0b1000() {
 	ByteWriter w;
 	w.temp_init();
 
 	BitWriter bw;
 	bw.init(&w);
 
-	bw.write_bits(0b0001000, 4)!;
-	bw.flush()!;
+	bw.write_bits(0b0001000, 4)!!;
+	bw.flush()!!;
 
 	assert(w.str_view() == x"80"); // 0b1000 0000
 }
 
-fn void! test_write_0b01000() {
+fn void test_write_0b01000() {
 	ByteWriter w;
 	w.temp_init();
 
 	BitWriter bw;
 	bw.init(&w);
 
-	bw.write_bits(0b0001000, 5)!;
-	bw.flush()!;
+	bw.write_bits(0b0001000, 5)!!;
+	bw.flush()!!;
 
 	assert(w.str_view() == x"40"); // 0b0100 0000
 }
 
-fn void! test_write_0b0001() {
+fn void test_write_0b0001() {
 	ByteWriter w;
 	w.temp_init();
 
 	BitWriter bw;
 	bw.init(&w);
 
-	bw.write_bits(0b0000001, 4)!;
-	bw.flush()!;
+	bw.write_bits(0b0000001, 4)!!;
+	bw.flush()!!;
 
 	assert(w.str_view() == x"10"); // 0b0001 0000
 }
 
 
-fn void! test_write_0b0000_0001() {
+fn void test_write_0b0000_0001() {
 	ByteWriter w;
 	w.temp_init();
 
 	BitWriter bw;
 	bw.init(&w);
 
-	bw.write_bits(0b0000001, 8)!;
-	bw.flush()!;
+	bw.write_bits(0b0000001, 8)!!;
+	bw.flush()!!;
 
 	assert(w.str_view() == x"01"); // 0b0000 0001
 }
 
-fn void! test_write_10_bits() {
+fn void test_write_10_bits() {
 	ByteWriter w;
 	w.temp_init();
 
 	BitWriter bw;
 	bw.init(&w);
 
-	bw.write_bits(0x789, 10)!; // 01|11 1000 1001
-	bw.flush()!;
+	bw.write_bits(0x789, 10)!!; // 01|11 1000 1001
+	bw.flush()!!;
 
    								      //      e    2    4    0
 	assert(w.str_view() == x"e2 40"); // 0b1110 0010 0100 0000
 }
 
-fn void! test_write_16_bits() {
+fn void test_write_16_bits() {
 	ByteWriter w;
 	w.temp_init();
 
 	BitWriter bw;
 	bw.init(&w);
 
-	bw.write_bits(0xfafb, 16)!;
-	bw.flush()!;
+	bw.write_bits(0xfafb, 16)!!;
+	bw.flush()!!;
 
 	assert(w.str_view() == x"fa fb");
 }
 
-fn void! test_write_24_bits() {
+fn void test_write_24_bits() {
 	ByteWriter w;
 	w.temp_init();
 
 	BitWriter bw;
 	bw.init(&w);
 
-	bw.write_bits(0xfafbfc, 24)!;
-	bw.flush()!;
+	bw.write_bits(0xfafbfc, 24)!!;
+	bw.flush()!!;
 
 	assert(w.str_view() == x"fa fb fc");
 }
 
-fn void! test_write_30_bits() {
+fn void test_write_30_bits() {
 	ByteWriter w;
 	w.temp_init();
 
 	BitWriter bw;
 	bw.init(&w);
 
-	bw.write_bits(0xf0f1f2f3, 30)!; // 11 | 110000111100011111001011110011
-	bw.flush()!;
+	bw.write_bits(0xf0f1f2f3, 30)!!; // 11 | 110000111100011111001011110011
+	bw.flush()!!;
 											//    c    3    c    7    c    b    c    c
 	assert(w.str_view() == x"c3 c7 cb cc"); // 1100 0011 1100 0111 1100 1011 1100 1100
 }
 
-fn void! test_write_32_bits() {
+fn void test_write_32_bits() {
 	ByteWriter w;
 	w.temp_init();
 
 	BitWriter bw;
 	bw.init(&w);
 
-	bw.write_bits(0xfafbfcfd, 32)!;
-	bw.flush()!;
+	bw.write_bits(0xfafbfcfd, 32)!!;
+	bw.flush()!!;
 
 	assert(w.str_view() == x"fa fb fc fd");
 }
 
-fn void! test_write_2_bits_multiple() {
+fn void test_write_2_bits_multiple() {
 	ByteWriter w;
 	w.temp_init();
 
 	BitWriter bw;
 	bw.init(&w);
 
-	bw.write_bits(0b11111111, 2)!;
-	bw.write_bits(0b00000001, 2)!;
-	bw.write_bits(0b11111111, 2)!;
-	bw.flush()!;
+	bw.write_bits(0b11111111, 2)!!;
+	bw.write_bits(0b00000001, 2)!!;
+	bw.write_bits(0b11111111, 2)!!;
+	bw.flush()!!;
 
 	assert(w.str_view() == x"dc"); // 0b1101 1100
 }
 
-fn void! test_write_10_bits_multiple() {
+fn void test_write_10_bits_multiple() {
 	ByteWriter w;
 	w.temp_init();
 
 	BitWriter bw;
 	bw.init(&w);
 
-	bw.write_bits(0x789, 10)!; // 01 | 11 1000 1001
-	bw.write_bits(0xabc, 10)!; // 10 | 10 1011 1100
-	bw.write_bits(0xdef, 10)!; // 11 | 01 1110 1111
-	bw.flush()!;
+	bw.write_bits(0x789, 10)!!; // 01 | 11 1000 1001
+	bw.write_bits(0xabc, 10)!!; // 10 | 10 1011 1100
+	bw.write_bits(0xdef, 10)!!; // 11 | 01 1110 1111
+	bw.flush()!!;
 
 										    //      e    2    6    b    c    7    b    c
 	assert(w.str_view() == x"e2 6b c7 bc"); // 0b1110 0010 0110 1011 1100 0111 1011 1100
 }
 
-fn void! test_write_24_bits_multiple() {
+fn void test_write_24_bits_multiple() {
 	ByteWriter w;
 	w.temp_init();
 
 	BitWriter bw;
 	bw.init(&w);
 
-	bw.write_bits(0xfafbfc, 24)!;
-	bw.write_bits(0xfdfeff, 24)!;
-	bw.flush()!;
+	bw.write_bits(0xfafbfc, 24)!!;
+	bw.write_bits(0xfdfeff, 24)!!;
+	bw.flush()!!;
 
 	assert(w.str_view() == x"fa fb fc fd fe ff");
 }
 
-fn void! test_write_30_bits_multiple() {
+fn void test_write_30_bits_multiple() {
 	ByteWriter w;
 	w.temp_init();
 
 	BitWriter bw;
 	bw.init(&w);
 
-	bw.write_bits(0xf0f1f2f3, 30)!; // 11 | 110000111100011111001011110011
-	bw.write_bits(0xfafbfcfd, 30)!; // 11 | 111010111110111111110011111101
-	bw.flush()!;
+	bw.write_bits(0xf0f1f2f3, 30)!!; // 11 | 110000111100011111001011110011
+	bw.write_bits(0xfafbfcfd, 30)!!; // 11 | 111010111110111111110011111101
+	bw.flush()!!;
 
 	assert(w.str_view() == x"c3 c7 cb cf af bf cf d0");
 }
 
-fn void! test_write_32_bits_multiple() {
+fn void test_write_32_bits_multiple() {
 	ByteWriter w;
 	w.temp_init();
 
 	BitWriter bw;
 	bw.init(&w);
 
-	bw.write_bits(0xf0f1f2f3, 32)!;
-	bw.write_bits(0xfafbfcfd, 32)!;
-	bw.flush()!;
+	bw.write_bits(0xf0f1f2f3, 32)!!;
+	bw.write_bits(0xfafbfcfd, 32)!!;
+	bw.flush()!!;
 
 	assert(w.str_view() == x"f0 f1 f2 f3 fa fb fc fd");
 }
 
-fn void! test_write_mixed_multiple() {
+fn void test_write_mixed_multiple() {
 	ByteWriter w;
 	w.temp_init();
 
 	BitWriter bw;
 	bw.init(&w);
 
-	bw.write_bits(0xf0f1f2f3, 8)!;
-	bw.write_bits(0xf0f1f2f3, 32)!;
-	bw.write_bits(0xfafbfcfd, 30)!;
-	bw.write_bits(0xf4f5f6f7, 10)!;
-	bw.flush()!;
+	bw.write_bits(0xf0f1f2f3, 8)!!;
+	bw.write_bits(0xf0f1f2f3, 32)!!;
+	bw.write_bits(0xfafbfcfd, 30)!!;
+	bw.write_bits(0xf4f5f6f7, 10)!!;
+	bw.flush()!!;
 
 	assert(w.str_view() == x"f3 f0 f1 f2 f3 eb ef f3 f6 f7");
 }

test/unit/stdlib/io/bufferstream.c3

@@ -2,7 +2,7 @@ module std::io @test;
 
 const DATA = "Lorem ipsum blandit.";
 
-fn void! readbuffer_large()
+fn void readbuffer_large()
 {
     ByteReader src;
     src.init(DATA);
@@ -11,14 +11,14 @@ fn void! readbuffer_large()
     reader_buf.init(&src, buf[..]);
 
     char[DATA.len] bytes;
-    usz n = reader_buf.read(bytes[..])!;
+    usz n = reader_buf.read(bytes[..])!!;
 
     assert(n == DATA.len, "large read failed: got %d; want %d", n, DATA.len);
     String got = (String)bytes[..];
     assert(got == DATA, "large read failed: got %s; want %s", got, DATA);
 }
 
-fn void! readbuffer()
+fn void readbuffer()
 {
     ByteReader src;
     src.init(DATA);
@@ -29,14 +29,14 @@ fn void! readbuffer()
     ByteWriter bw;
     bw.temp_init();
 
-    usz n = io::copy_to(&reader_buf, &bw)!;
+    usz n = io::copy_to(&reader_buf, &bw)!!;
 
     assert(n == DATA.len, "got %d; want %d", n, DATA.len);
     String got = bw.str_view();
     assert(got == DATA, "got %s; want %s", got, DATA);
 }
 
-fn void! writebuffer_large()
+fn void writebuffer_large()
 {
     ByteWriter out;
     out.temp_init();
@@ -44,14 +44,14 @@ fn void! writebuffer_large()
     WriteBuffer write_buf;
     write_buf.init(&out, buf[..]);
 
-    usz n = write_buf.write(DATA)!;
+    usz n = write_buf.write(DATA)!!;
 
     assert(n == DATA.len, "large write failed: got %d; want %d", n, DATA.len);
     String got = out.str_view();
     assert(got == DATA, "large write failed: got %s; want %s", got, DATA);
 }
 
-fn void! writebuffer()
+fn void writebuffer()
 {
     ByteReader br;
     br.init(DATA);
@@ -61,14 +61,14 @@ fn void! writebuffer()
     WriteBuffer write_buf;
     write_buf.init(&out, buf[..]);
 
-    usz n = io::copy_to(&br, &write_buf)!;
+    usz n = io::copy_to(&br, &write_buf)!!;
 
     assert(n == DATA.len, "got %d; want %d", n, DATA.len);
     String got = out.str_view();
     assert(got == DATA, "got %s; want %s", got, DATA);
 }
 
-fn void! writebuffer_write_byte()
+fn void writebuffer_write_byte()
 {
     ByteWriter out;
     out.temp_init();
@@ -76,19 +76,19 @@ fn void! writebuffer_write_byte()
     WriteBuffer write_buf;
     write_buf.init(&out, buf[..]);
 
-	write_buf.write_byte('a')!;
+	write_buf.write_byte('a')!!;
 	assert(write_buf.str_view() == "a");
     assert(out.str_view() == "");
 
-	write_buf.write_byte('b')!;
+	write_buf.write_byte('b')!!;
 	assert(write_buf.str_view() == "ab");
     assert(out.str_view() == "");
 
-	write_buf.write_byte('c')!;
+	write_buf.write_byte('c')!!;
 	assert(write_buf.str_view() == "c");
     assert(out.str_view() == "ab");
 
-	write_buf.flush()!;
+	write_buf.flush()!!;
 	assert(write_buf.str_view() == "");
     assert(out.str_view() == "abc");
 }

test/unit/stdlib/io/bytebuffer.c3

@@ -1,29 +1,29 @@
 module std::io::bytebuffer @test;
 import std::io;
 
-fn void! write_read()
+fn void write_read()
 {
 	ByteBuffer buffer;
-	buffer.new_init(0)!;
+	buffer.new_init(0)!!;
 
-	buffer.write("hello")!;
+	buffer.write("hello")!!;
 
 	char[8] bytes;
-	usz n = buffer.read(bytes[..])!;
+	usz n = buffer.read(bytes[..])!!;
 	assert(n == 5);
 	assert((String)bytes[:n] == "hello");
 
-	buffer.write("hello world")!;
-	n = buffer.read(bytes[..])!;
+	buffer.write("hello world")!!;
+	n = buffer.read(bytes[..])!!;
 	assert(n == bytes.len);
 	assert((String)bytes[:n] == "hello wo");
 	assert(buffer.read_idx == 1);
 
-	char c = buffer.read_byte()!;
+	char c = buffer.read_byte()!!;
 	assert(c == 'r');
-	buffer.pushback_byte()!;
+	buffer.pushback_byte()!!;
 
-	n = buffer.read(bytes[..])!;
+	n = buffer.read(bytes[..])!!;
 	assert((String)bytes[:n] == "rld");
 	assert(buffer.read_idx == 1);
 }

test/unit/stdlib/io/bytestream.c3

@@ -1,29 +1,29 @@
 module std::io @test;
 
-fn void! bytestream()
+fn void bytestream()
 {
 	ByteReader r;
 	r.init("abc");
 	InStream s = &r;
 	assert(s.len() == 3);
 	char[5] buffer;
-	assert('a' == s.read_byte()!);
-	s.pushback_byte()!;
-	usz len = s.read(&buffer)!;
+	assert('a' == s.read_byte()!!);
+	s.pushback_byte()!!;
+	usz len = s.read(&buffer)!!;
 	assert((String)buffer[:len] == "abc");
 	ByteWriter w;
 	w.new_init();
 	OutStream ws = &w;
-	ws.write("helloworld")!;
+	ws.write("helloworld")!!;
 	assert(w.str_view() == "helloworld");
-	s.seek(0, SET)!;
-	io::copy_to(s, ws)!;
-	s.seek(1, SET)!;
-	s.write_to(ws)!;
+	s.seek(0, SET)!!;
+	io::copy_to(s, ws)!!;
+	s.seek(1, SET)!!;
+	s.write_to(ws)!!;
 	assert(w.str_view() == "helloworldabcbc");
 }
 
-fn void! bytewriter_buffer()
+fn void bytewriter_buffer()
 {
 	ByteWriter writer;
 	char[8] z;
@@ -36,7 +36,7 @@ fn void! bytewriter_buffer()
 	assert(@catch(s.write("xxxx")));
 }
 
-fn void! bytewriter_read_from()
+fn void bytewriter_read_from()
 {
     char[] data = "Lorem ipsum dolor sit amet biam.";
     TestReader r = { .bytes = data };
@@ -44,7 +44,7 @@ fn void! bytewriter_read_from()
 
     ByteWriter bw;
     bw.temp_init();
-    bw.read_from(s)!;
+    bw.read_from(s)!!;
 
     assert(bw.str_view() == data);
 }

test/unit/stdlib/io/dstringstream.c3

@@ -1,6 +1,6 @@
 module std::io @test;
 
-fn void! test_writing()
+fn void test_writing()
 {
 	DString foo;
 	foo.new_init();
@@ -10,7 +10,7 @@ fn void! test_writing()
 	s.write("what?-------------------------------------------------------")!!;
 	ByteReader r;
 	String test_str = "2134";
-	io::copy_to(r.init(test_str), s)!;
+	io::copy_to(r.init(test_str), s)!!;
 	String o = foo.str_view();
 	assert(o == "hello-what?-------------------------------------------------------2134");
 }

test/unit/stdlib/io/file_read_write_any.c3

@@ -34,7 +34,7 @@ struct Data {
   }
 }
 
-fn void! read_write_any()
+fn void read_write_any()
 {
     Data data;
     data.boolean = false;
@@ -58,7 +58,7 @@ fn void! read_write_any()
     File file = file::open("__file_read_write_any_test_file", "wb")!!;
 
     io::write_any(&file, &data)!!;
-    file.flush()!;
+    file.flush()!!;
     file.close()!!;
 
     file = file::open("__file_read_write_any_test_file", "rb")!!;

test/unit/stdlib/io/limitreader.c3

@@ -1,7 +1,7 @@
 module std::io @test;
 
 
-fn void! limitreader()
+fn void limitreader()
 {
     const DATA = "Hello World!";
     ByteReader src;
@@ -11,7 +11,7 @@ fn void! limitreader()
     lmr.init(&src, LIMIT);
 
     char[DATA.len] bytes;
-    usz n = lmr.read(bytes[..])!;
+    usz n = lmr.read(bytes[..])!!;
 
     assert(n == LIMIT, "got %d; want %d", n, LIMIT);
     String got = (String)bytes[:n];

test/unit/stdlib/io/multireader.c3

@@ -1,6 +1,6 @@
 module std::io @test;
 
-fn void! test_multireader()
+fn void test_multireader()
 {
 	MultiReader mr;
 	mr.temp_init(
@@ -12,7 +12,7 @@ fn void! test_multireader()
 	defer mr.free();
 
 	ByteWriter w;
-	io::copy_to(&mr, w.temp_init())!;
+	io::copy_to(&mr, w.temp_init())!!;
 	
 	String want = "foo bar!";
 	assert(w.str_view() == want,

test/unit/stdlib/io/multiwriter.c3

@@ -1,6 +1,6 @@
 module std::io @test;
 
-fn void! test_multiwriter()
+fn void test_multiwriter()
 {
 	ByteWriter w1, w2;
 	MultiWriter mw;
@@ -8,7 +8,7 @@ fn void! test_multiwriter()
 	defer mw.free();
 
 	String want = "foobar";
-	io::copy_to(ByteReader{}.init(want), &mw)!;
+	io::copy_to(ByteReader{}.init(want), &mw)!!;
 	
 	assert(w1.str_view() == want,
 		"invalid write; got: %s, want: %s", w1.str_view(), want);

test/unit/stdlib/io/path.c3

@@ -1,12 +1,12 @@
 module std::io::path @test;
 
-fn void! test_dot()
+fn void test_dot()
 {
-	Path p = path::new(".")!;
+	Path p = path::new(".")!!;
 	assert(@catch(p.parent()));
 	// It must be possible to form the absolute version.
-	Path p2 = p.new_absolute()!;
-	p2 = p.new_append("/hello/world")!;
+	Path p2 = p.new_absolute()!!;
+	p2 = p.new_append("/hello/world")!!;
 	if (p2.env == POSIX)
 	{
 		assert(p2.str_view() == "hello/world");
@@ -17,21 +17,21 @@ fn void! test_dot()
 	}
 }
 
-fn void! test_parent()
+fn void test_parent()
 {
-	Path p = path::new("")!;
+	Path p = path::new("")!!;
 	assert(@catch(p.parent()));
-	p = path::new("/", path_env: PathEnv.POSIX)!;
+	p = path::new("/", path_env: PathEnv.POSIX)!!;
 	assert(@catch(p.parent()));
-	p = path::new("/a/b/c", path_env: PathEnv.POSIX)!;
-	assert(p.parent().str_view()! == "/a/b");
-	p = path::new("/a/b/c", path_env: PathEnv.WIN32)!;
-	assert(p.parent().str_view()! == `\a\b`);
+	p = path::new("/a/b/c", path_env: PathEnv.POSIX)!!;
+	assert(p.parent().str_view()!! == "/a/b");
+	p = path::new("/a/b/c", path_env: PathEnv.WIN32)!!;
+	assert(p.parent().str_view()!! == `\a\b`);
 }
 
-fn void! test_path_normalized()
+fn void test_path_normalized()
 {
-	assert(path::new("",  path_env: PathEnv.WIN32).str_view()! == "");
+	assert(path::new("",  path_env: PathEnv.WIN32).str_view()!! == "");
 	assert(@catch(path::new("1:\\a\\b\\c.txt", path_env: PathEnv.WIN32)));
 	assert(@catch(path::new(":", path_env: PathEnv.WIN32)));
 	assert(@catch(path::new("1:", path_env: PathEnv.WIN32)));
@@ -52,160 +52,160 @@ fn void! test_path_normalized()
 	assert(@catch(path::new(`C:/../a`, path_env: PathEnv.WIN32)));
 	assert(@catch(path::new(`C:/..`, path_env: PathEnv.WIN32)));
 
-	assert(path::new("/", path_env: PathEnv.POSIX).str_view()! == "/");
-	assert(path::new("/./", path_env: PathEnv.POSIX).str_view()! == "/");
-	assert(path::new("/foo/../", path_env: PathEnv.POSIX).str_view()! == "/");
-	assert(path::new("/foo/bar/../", path_env: PathEnv.POSIX).str_view()! == "/foo");
-	assert(path::new("/foo//bar", path_env: PathEnv.POSIX).str_view()! == "/foo/bar");
-	assert(path::new("/foo//bar/../", path_env: PathEnv.POSIX).str_view()! == "/foo");
-	assert(path::new("/foo/.bar", path_env: PathEnv.POSIX).str_view()! == "/foo/.bar");
-	assert(path::new(`\foo\.bar`, path_env: PathEnv.WIN32).str_view()! == `\foo\.bar`);
-	assert(path::new("a\\b/c.txt", path_env: PathEnv.WIN32).str_view()! == `a\b\c.txt`);
-	assert(path::new("a\\b/c.txt", path_env: PathEnv.POSIX).str_view()! == "a\\b/c.txt");
-	assert(path::new("C:\\a\\b/c.txt", path_env: PathEnv.WIN32).str_view()! == `C:\a\b\c.txt`);
-	assert(path::new("C:\\a\\b/c.txt", path_env: PathEnv.POSIX).str_view()! == "C:\\a\\b/c.txt");
-	assert(path::new(`\\server\a\b/c.txt`, path_env: PathEnv.WIN32).str_view()! == `\\server\a\b\c.txt`);
-	assert(path::new(`\\server\a\b/c.txt`, path_env: PathEnv.POSIX).str_view()! == `\\server\a\b/c.txt`);
-	assert(path::new(`c:\hello//bar\\\\foo.txt`, path_env: PathEnv.WIN32).str_view()! == `c:\hello\bar\foo.txt`);
+	assert(path::new("/", path_env: PathEnv.POSIX).str_view()!! == "/");
+	assert(path::new("/./", path_env: PathEnv.POSIX).str_view()!! == "/");
+	assert(path::new("/foo/../", path_env: PathEnv.POSIX).str_view()!! == "/");
+	assert(path::new("/foo/bar/../", path_env: PathEnv.POSIX).str_view()!! == "/foo");
+	assert(path::new("/foo//bar", path_env: PathEnv.POSIX).str_view()!! == "/foo/bar");
+	assert(path::new("/foo//bar/../", path_env: PathEnv.POSIX).str_view()!! == "/foo");
+	assert(path::new("/foo/.bar", path_env: PathEnv.POSIX).str_view()!! == "/foo/.bar");
+	assert(path::new(`\foo\.bar`, path_env: PathEnv.WIN32).str_view()!! == `\foo\.bar`);
+	assert(path::new("a\\b/c.txt", path_env: PathEnv.WIN32).str_view()!! == `a\b\c.txt`);
+	assert(path::new("a\\b/c.txt", path_env: PathEnv.POSIX).str_view()!! == "a\\b/c.txt");
+	assert(path::new("C:\\a\\b/c.txt", path_env: PathEnv.WIN32).str_view()!! == `C:\a\b\c.txt`);
+	assert(path::new("C:\\a\\b/c.txt", path_env: PathEnv.POSIX).str_view()!! == "C:\\a\\b/c.txt");
+	assert(path::new(`\\server\a\b/c.txt`, path_env: PathEnv.WIN32).str_view()!! == `\\server\a\b\c.txt`);
+	assert(path::new(`\\server\a\b/c.txt`, path_env: PathEnv.POSIX).str_view()!! == `\\server\a\b/c.txt`);
+	assert(path::new(`c:\hello//bar\\\\foo.txt`, path_env: PathEnv.WIN32).str_view()!! == `c:\hello\bar\foo.txt`);
 
-	assert(path::new(`~\a\b/c.txt`, path_env: PathEnv.WIN32).str_view()! == `~\a\b\c.txt`);
-	assert(path::new(`~\a\b/c.txt`, path_env: PathEnv.POSIX).str_view()! == `~\a\b/c.txt`);
+	assert(path::new(`~\a\b/c.txt`, path_env: PathEnv.WIN32).str_view()!! == `~\a\b\c.txt`);
+	assert(path::new(`~\a\b/c.txt`, path_env: PathEnv.POSIX).str_view()!! == `~\a\b/c.txt`);
 
 
-	assert(path::new(`a/b/../../../c`, path_env: PathEnv.WIN32).str_view()! == `..\c`);
-	assert(path::new(`a/b/../../../c`, path_env: PathEnv.POSIX).str_view()! == `../c`);
-	assert(path::new(`a/b/../../..`, path_env: PathEnv.WIN32).str_view()! == `..`);
-	assert(path::new(`a/b/../../..`, path_env: PathEnv.POSIX).str_view()! == `..`);
-	assert(path::new(`../a`, path_env: PathEnv.WIN32).str_view()! == `..\a`);
-	assert(path::new(`../a`, path_env: PathEnv.POSIX).str_view()! == `../a`);
-	assert(path::new(`..`, path_env: PathEnv.WIN32).str_view()! == `..`);
-	assert(path::new(`..`, path_env: PathEnv.POSIX).str_view()! == `..`);
-	assert(path::new(`a/b/../c`, path_env: PathEnv.WIN32).str_view()! == `a\c`);
-	assert(path::new(`a/b/../c`, path_env: PathEnv.POSIX).str_view()! == `a/c`);
-	assert(path::new(`a/b/../../c`, path_env: PathEnv.WIN32).str_view()! == `c`);
-	assert(path::new(`a/b/../../c`, path_env: PathEnv.POSIX).str_view()! == `c`);
-	assert(path::new(`a/b/..`, path_env: PathEnv.WIN32).str_view()! == `a`);
-	assert(path::new(`a/b/..`, path_env: PathEnv.POSIX).str_view()! == `a`);
-	assert(path::new(`a/b/../`, path_env: PathEnv.WIN32).str_view()! == `a`);
-	assert(path::new(`a/b/../`, path_env: PathEnv.POSIX).str_view()! == `a`);
-	assert(path::new(`a/b/../..`, path_env: PathEnv.WIN32).str_view()! == ".");
-	assert(path::new(`a/b/../..`, path_env: PathEnv.POSIX).str_view()! == ".");
-	assert(path::new(`a/b/../../`, path_env: PathEnv.WIN32).str_view()! == ".");
-	assert(path::new(`a/b/../../`, path_env: PathEnv.POSIX).str_view()! == ".");
-	assert(path::new(`a/b/../c/../d`, path_env: PathEnv.WIN32).str_view()! == `a\d`);
-	assert(path::new(`a/b/../c/../d`, path_env: PathEnv.POSIX).str_view()! == `a/d`);
-	assert(path::new(`a/b/../c/../d/`, path_env: PathEnv.WIN32).str_view()! == `a\d`);
-	assert(path::new(`a/b/../c/../d/`, path_env: PathEnv.POSIX).str_view()! == `a/d`);
-	assert(path::new(`a/b//d`, path_env: PathEnv.WIN32).str_view()! == `a\b\d`);
-	assert(path::new(`a/b//d`, path_env: PathEnv.POSIX).str_view()! == `a/b/d`);
-	assert(path::new(`a/b/././.`, path_env: PathEnv.WIN32).str_view()! == `a\b`);
-	assert(path::new(`a/b/././.`, path_env: PathEnv.POSIX).str_view()! == `a/b`);
-	assert(path::new(`a/b/./././`, path_env: PathEnv.WIN32).str_view()! == `a\b`);
-	assert(path::new(`a/b/./././`, path_env: PathEnv.POSIX).str_view()! == `a/b`);
-	assert(path::new(`./a/`, path_env: PathEnv.WIN32).str_view()! == `a`);
-	assert(path::new(`./a/`, path_env: PathEnv.POSIX).str_view()! == `a`);
-	assert(path::new(`./`, path_env: PathEnv.WIN32).str_view()! == `.`);
-	assert(path::new(`./`, path_env: PathEnv.POSIX).str_view()! == `.`);
-	assert(path::new(`.`, path_env: PathEnv.WIN32).str_view()! == `.`);
-	assert(path::new(`.`, path_env: PathEnv.POSIX).str_view()! == `.`);
-	assert(path::new(``, path_env: PathEnv.WIN32).str_view()! == ``);
-	assert(path::new(``, path_env: PathEnv.POSIX).str_view()! == ``);
-	assert(path::new(`/a`, path_env: PathEnv.WIN32).str_view()! == `\a`);
-	assert(path::new(`/a`, path_env: PathEnv.POSIX).str_view()! == `/a`);
-	assert(path::new(`/a/`, path_env: PathEnv.WIN32).str_view()! == `\a`);
-	assert(path::new(`/a/`, path_env: PathEnv.POSIX).str_view()! == `/a`);
-	assert(path::new(`/a/b/../c`, path_env: PathEnv.WIN32).str_view()! == `\a\c`);
-	assert(path::new(`/a/b/../c`, path_env: PathEnv.POSIX).str_view()! == `/a/c`);
-	assert(path::new(`/a/b/../../c`, path_env: PathEnv.WIN32).str_view()! == `\c`);
-	assert(path::new(`/a/b/../../c`, path_env: PathEnv.POSIX).str_view()! == `/c`);
-	assert(path::new(`/a/b/..`, path_env: PathEnv.WIN32).str_view()! == `\a`);
-	assert(path::new(`/a/b/..`, path_env: PathEnv.POSIX).str_view()! == `/a`);
-	assert(path::new(`/a/b/../..`, path_env: PathEnv.WIN32).str_view()! == `\`);
-	assert(path::new(`/a/b/../..`, path_env: PathEnv.POSIX).str_view()! == `/`);
-	assert(path::new(`/a/b/../c/../d`, path_env: PathEnv.WIN32).str_view()! == `\a\d`);
-	assert(path::new(`/a/b/../c/../d`, path_env: PathEnv.POSIX).str_view()! == `/a/d`);
-	assert(path::new(`/a/b//d`, path_env: PathEnv.WIN32).str_view()! == `\a\b\d`);
-	assert(path::new(`/a/b//d`, path_env: PathEnv.POSIX).str_view()! == `/a/b/d`);
-	assert(path::new(`/./a/`, path_env: PathEnv.WIN32).str_view()! == `\a`);
-	assert(path::new(`/./a/`, path_env: PathEnv.POSIX).str_view()! == `/a`);
-	assert(path::new(`/./`, path_env: PathEnv.WIN32).str_view()! == `\`);
-	assert(path::new(`/./`, path_env: PathEnv.POSIX).str_view()! == `/`);
-	assert(path::new(`/.`, path_env: PathEnv.WIN32).str_view()! == `\`);
-	assert(path::new(`/.`, path_env: PathEnv.POSIX).str_view()! == `/`);
-	assert(path::new(`/`, path_env: PathEnv.WIN32).str_view()! == `\`);
-	assert(path::new(`/`, path_env: PathEnv.POSIX).str_view()! == `/`);
-	assert(path::new(`C:/a`, path_env: PathEnv.WIN32).str_view()! == `C:\a`);
-	assert(path::new(`C:/a`, path_env: PathEnv.POSIX).str_view()! == `C:/a`);
-	assert(path::new(`C:/a/b/../c`, path_env: PathEnv.WIN32).str_view()! == `C:\a\c`);
-	assert(path::new(`C:/a/b/../c`, path_env: PathEnv.POSIX).str_view()! == `C:/a/c`);
-	assert(path::new(`C:/a/b/../../c`, path_env: PathEnv.WIN32).str_view()! == `C:\c`);
-	assert(path::new(`C:/a/b/../../c`, path_env: PathEnv.POSIX).str_view()! == `C:/c`);
-	assert(path::new(`C:/a/b/../../../c`, path_env: PathEnv.POSIX).str_view()! == `c`);
-	assert(path::new(`C:/a/b/..`, path_env: PathEnv.WIN32).str_view()! == `C:\a`);
-	assert(path::new(`C:/a/b/..`, path_env: PathEnv.POSIX).str_view()! == `C:/a`);
-	assert(path::new(`C:/a/b/../..`, path_env: PathEnv.WIN32).str_view()! == `C:\`);
-	assert(path::new(`C:/a/b/../..`, path_env: PathEnv.POSIX).str_view()! == `C:`);
-	assert(path::new(`C:/a/b/../c/../d`, path_env: PathEnv.WIN32).str_view()! == `C:\a\d`);
-	assert(path::new(`C:/a/b/../c/../d`, path_env: PathEnv.POSIX).str_view()! == `C:/a/d`);
-	assert(path::new(`C:/a/b//d`, path_env: PathEnv.WIN32).str_view()! == `C:\a\b\d`);
-	assert(path::new(`C:/a/b//d`, path_env: PathEnv.POSIX).str_view()! == `C:/a/b/d`);
-	assert(path::new(`C:/a/b/././.`, path_env: PathEnv.WIN32).str_view()! == `C:\a\b`);
-	assert(path::new(`C:/a/b/././.`, path_env: PathEnv.POSIX).str_view()! == `C:/a/b`);
-	assert(path::new(`C:/./a`, path_env: PathEnv.WIN32).str_view()! == `C:\a`);
-	assert(path::new(`C:/./a`, path_env: PathEnv.POSIX).str_view()! == `C:/a`);
-	assert(path::new(`C:/./`, path_env: PathEnv.WIN32).str_view()! == `C:\`);
-	assert(path::new(`C:/./`, path_env: PathEnv.POSIX).str_view()! == `C:`);
-	assert(path::new(`C:/../a`, path_env: PathEnv.POSIX).str_view()! == `a`);
-	assert(path::new(`C:/..`, path_env: PathEnv.POSIX).str_view()! == `.`);
-	assert(path::new(`C:/`, path_env: PathEnv.WIN32).str_view()! == `C:\`);
-	assert(path::new(`C:/`, path_env: PathEnv.POSIX).str_view()! == `C:`);
-	assert(path::new(`C:a`, path_env: PathEnv.WIN32).str_view()! == `C:a`);
-	assert(path::new(`C:a`, path_env: PathEnv.POSIX).str_view()! == `C:a`);
-	assert(path::new(`C:a/`, path_env: PathEnv.WIN32).str_view()! == `C:a`);
-	assert(path::new(`C:a/`, path_env: PathEnv.POSIX).str_view()! == `C:a`);
+	assert(path::new(`a/b/../../../c`, path_env: PathEnv.WIN32).str_view()!! == `..\c`);
+	assert(path::new(`a/b/../../../c`, path_env: PathEnv.POSIX).str_view()!! == `../c`);
+	assert(path::new(`a/b/../../..`, path_env: PathEnv.WIN32).str_view()!! == `..`);
+	assert(path::new(`a/b/../../..`, path_env: PathEnv.POSIX).str_view()!! == `..`);
+	assert(path::new(`../a`, path_env: PathEnv.WIN32).str_view()!! == `..\a`);
+	assert(path::new(`../a`, path_env: PathEnv.POSIX).str_view()!! == `../a`);
+	assert(path::new(`..`, path_env: PathEnv.WIN32).str_view()!! == `..`);
+	assert(path::new(`..`, path_env: PathEnv.POSIX).str_view()!! == `..`);
+	assert(path::new(`a/b/../c`, path_env: PathEnv.WIN32).str_view()!! == `a\c`);
+	assert(path::new(`a/b/../c`, path_env: PathEnv.POSIX).str_view()!! == `a/c`);
+	assert(path::new(`a/b/../../c`, path_env: PathEnv.WIN32).str_view()!! == `c`);
+	assert(path::new(`a/b/../../c`, path_env: PathEnv.POSIX).str_view()!! == `c`);
+	assert(path::new(`a/b/..`, path_env: PathEnv.WIN32).str_view()!! == `a`);
+	assert(path::new(`a/b/..`, path_env: PathEnv.POSIX).str_view()!! == `a`);
+	assert(path::new(`a/b/../`, path_env: PathEnv.WIN32).str_view()!! == `a`);
+	assert(path::new(`a/b/../`, path_env: PathEnv.POSIX).str_view()!! == `a`);
+	assert(path::new(`a/b/../..`, path_env: PathEnv.WIN32).str_view()!! == ".");
+	assert(path::new(`a/b/../..`, path_env: PathEnv.POSIX).str_view()!! == ".");
+	assert(path::new(`a/b/../../`, path_env: PathEnv.WIN32).str_view()!! == ".");
+	assert(path::new(`a/b/../../`, path_env: PathEnv.POSIX).str_view()!! == ".");
+	assert(path::new(`a/b/../c/../d`, path_env: PathEnv.WIN32).str_view()!! == `a\d`);
+	assert(path::new(`a/b/../c/../d`, path_env: PathEnv.POSIX).str_view()!! == `a/d`);
+	assert(path::new(`a/b/../c/../d/`, path_env: PathEnv.WIN32).str_view()!! == `a\d`);
+	assert(path::new(`a/b/../c/../d/`, path_env: PathEnv.POSIX).str_view()!! == `a/d`);
+	assert(path::new(`a/b//d`, path_env: PathEnv.WIN32).str_view()!! == `a\b\d`);
+	assert(path::new(`a/b//d`, path_env: PathEnv.POSIX).str_view()!! == `a/b/d`);
+	assert(path::new(`a/b/././.`, path_env: PathEnv.WIN32).str_view()!! == `a\b`);
+	assert(path::new(`a/b/././.`, path_env: PathEnv.POSIX).str_view()!! == `a/b`);
+	assert(path::new(`a/b/./././`, path_env: PathEnv.WIN32).str_view()!! == `a\b`);
+	assert(path::new(`a/b/./././`, path_env: PathEnv.POSIX).str_view()!! == `a/b`);
+	assert(path::new(`./a/`, path_env: PathEnv.WIN32).str_view()!! == `a`);
+	assert(path::new(`./a/`, path_env: PathEnv.POSIX).str_view()!! == `a`);
+	assert(path::new(`./`, path_env: PathEnv.WIN32).str_view()!! == `.`);
+	assert(path::new(`./`, path_env: PathEnv.POSIX).str_view()!! == `.`);
+	assert(path::new(`.`, path_env: PathEnv.WIN32).str_view()!! == `.`);
+	assert(path::new(`.`, path_env: PathEnv.POSIX).str_view()!! == `.`);
+	assert(path::new(``, path_env: PathEnv.WIN32).str_view()!! == ``);
+	assert(path::new(``, path_env: PathEnv.POSIX).str_view()!! == ``);
+	assert(path::new(`/a`, path_env: PathEnv.WIN32).str_view()!! == `\a`);
+	assert(path::new(`/a`, path_env: PathEnv.POSIX).str_view()!! == `/a`);
+	assert(path::new(`/a/`, path_env: PathEnv.WIN32).str_view()!! == `\a`);
+	assert(path::new(`/a/`, path_env: PathEnv.POSIX).str_view()!! == `/a`);
+	assert(path::new(`/a/b/../c`, path_env: PathEnv.WIN32).str_view()!! == `\a\c`);
+	assert(path::new(`/a/b/../c`, path_env: PathEnv.POSIX).str_view()!! == `/a/c`);
+	assert(path::new(`/a/b/../../c`, path_env: PathEnv.WIN32).str_view()!! == `\c`);
+	assert(path::new(`/a/b/../../c`, path_env: PathEnv.POSIX).str_view()!! == `/c`);
+	assert(path::new(`/a/b/..`, path_env: PathEnv.WIN32).str_view()!! == `\a`);
+	assert(path::new(`/a/b/..`, path_env: PathEnv.POSIX).str_view()!! == `/a`);
+	assert(path::new(`/a/b/../..`, path_env: PathEnv.WIN32).str_view()!! == `\`);
+	assert(path::new(`/a/b/../..`, path_env: PathEnv.POSIX).str_view()!! == `/`);
+	assert(path::new(`/a/b/../c/../d`, path_env: PathEnv.WIN32).str_view()!! == `\a\d`);
+	assert(path::new(`/a/b/../c/../d`, path_env: PathEnv.POSIX).str_view()!! == `/a/d`);
+	assert(path::new(`/a/b//d`, path_env: PathEnv.WIN32).str_view()!! == `\a\b\d`);
+	assert(path::new(`/a/b//d`, path_env: PathEnv.POSIX).str_view()!! == `/a/b/d`);
+	assert(path::new(`/./a/`, path_env: PathEnv.WIN32).str_view()!! == `\a`);
+	assert(path::new(`/./a/`, path_env: PathEnv.POSIX).str_view()!! == `/a`);
+	assert(path::new(`/./`, path_env: PathEnv.WIN32).str_view()!! == `\`);
+	assert(path::new(`/./`, path_env: PathEnv.POSIX).str_view()!! == `/`);
+	assert(path::new(`/.`, path_env: PathEnv.WIN32).str_view()!! == `\`);
+	assert(path::new(`/.`, path_env: PathEnv.POSIX).str_view()!! == `/`);
+	assert(path::new(`/`, path_env: PathEnv.WIN32).str_view()!! == `\`);
+	assert(path::new(`/`, path_env: PathEnv.POSIX).str_view()!! == `/`);
+	assert(path::new(`C:/a`, path_env: PathEnv.WIN32).str_view()!! == `C:\a`);
+	assert(path::new(`C:/a`, path_env: PathEnv.POSIX).str_view()!! == `C:/a`);
+	assert(path::new(`C:/a/b/../c`, path_env: PathEnv.WIN32).str_view()!! == `C:\a\c`);
+	assert(path::new(`C:/a/b/../c`, path_env: PathEnv.POSIX).str_view()!! == `C:/a/c`);
+	assert(path::new(`C:/a/b/../../c`, path_env: PathEnv.WIN32).str_view()!! == `C:\c`);
+	assert(path::new(`C:/a/b/../../c`, path_env: PathEnv.POSIX).str_view()!! == `C:/c`);
+	assert(path::new(`C:/a/b/../../../c`, path_env: PathEnv.POSIX).str_view()!! == `c`);
+	assert(path::new(`C:/a/b/..`, path_env: PathEnv.WIN32).str_view()!! == `C:\a`);
+	assert(path::new(`C:/a/b/..`, path_env: PathEnv.POSIX).str_view()!! == `C:/a`);
+	assert(path::new(`C:/a/b/../..`, path_env: PathEnv.WIN32).str_view()!! == `C:\`);
+	assert(path::new(`C:/a/b/../..`, path_env: PathEnv.POSIX).str_view()!! == `C:`);
+	assert(path::new(`C:/a/b/../c/../d`, path_env: PathEnv.WIN32).str_view()!! == `C:\a\d`);
+	assert(path::new(`C:/a/b/../c/../d`, path_env: PathEnv.POSIX).str_view()!! == `C:/a/d`);
+	assert(path::new(`C:/a/b//d`, path_env: PathEnv.WIN32).str_view()!! == `C:\a\b\d`);
+	assert(path::new(`C:/a/b//d`, path_env: PathEnv.POSIX).str_view()!! == `C:/a/b/d`);
+	assert(path::new(`C:/a/b/././.`, path_env: PathEnv.WIN32).str_view()!! == `C:\a\b`);
+	assert(path::new(`C:/a/b/././.`, path_env: PathEnv.POSIX).str_view()!! == `C:/a/b`);
+	assert(path::new(`C:/./a`, path_env: PathEnv.WIN32).str_view()!! == `C:\a`);
+	assert(path::new(`C:/./a`, path_env: PathEnv.POSIX).str_view()!! == `C:/a`);
+	assert(path::new(`C:/./`, path_env: PathEnv.WIN32).str_view()!! == `C:\`);
+	assert(path::new(`C:/./`, path_env: PathEnv.POSIX).str_view()!! == `C:`);
+	assert(path::new(`C:/../a`, path_env: PathEnv.POSIX).str_view()!! == `a`);
+	assert(path::new(`C:/..`, path_env: PathEnv.POSIX).str_view()!! == `.`);
+	assert(path::new(`C:/`, path_env: PathEnv.WIN32).str_view()!! == `C:\`);
+	assert(path::new(`C:/`, path_env: PathEnv.POSIX).str_view()!! == `C:`);
+	assert(path::new(`C:a`, path_env: PathEnv.WIN32).str_view()!! == `C:a`);
+	assert(path::new(`C:a`, path_env: PathEnv.POSIX).str_view()!! == `C:a`);
+	assert(path::new(`C:a/`, path_env: PathEnv.WIN32).str_view()!! == `C:a`);
+	assert(path::new(`C:a/`, path_env: PathEnv.POSIX).str_view()!! == `C:a`);
 
-	assert(path::new(`C:a/b/../c`, path_env: PathEnv.WIN32).str_view()! == `C:a\c`);
-	assert(path::new(`C:a/b/../c`, path_env: PathEnv.POSIX).str_view()! == `C:a/c`);
-	assert(path::new(`C:a/b/../../c`, path_env: PathEnv.WIN32).str_view()! == `C:c`);
-	assert(path::new(`C:a/b/../../c`, path_env: PathEnv.POSIX).str_view()! == `c`);
-	assert(path::new(`C:a/b/..`, path_env: PathEnv.WIN32).str_view()! == `C:a`);
-	assert(path::new(`C:a/b/..`, path_env: PathEnv.POSIX).str_view()! == `C:a`);
-	assert(path::new(`C:a/b/../..`, path_env: PathEnv.WIN32).str_view()! == `C:`);
-	assert(path::new(`C:a/b/../..`, path_env: PathEnv.POSIX).str_view()! == `.`);
-	assert(path::new(`C:a/b/../c/../d`, path_env: PathEnv.WIN32).str_view()! == `C:a\d`);
-	assert(path::new(`C:a/b/../c/../d`, path_env: PathEnv.POSIX).str_view()! == `C:a/d`);
-	assert(path::new(`C:a/b//d`, path_env: PathEnv.WIN32).str_view()! == `C:a\b\d`);
-	assert(path::new(`C:a/b//d`, path_env: PathEnv.POSIX).str_view()! == `C:a/b/d`);
-	assert(path::new(`C:a/b/././.`, path_env: PathEnv.WIN32).str_view()! == `C:a\b`);
-	assert(path::new(`C:a/b/././.`, path_env: PathEnv.POSIX).str_view()! == `C:a/b`);
-	assert(path::new(`C:a/b/../../../c`, path_env: PathEnv.WIN32).str_view()! == `C:..\c`);
-	assert(path::new(`C:./a`, path_env: PathEnv.WIN32).str_view()! == `C:a`);
-	assert(path::new(`C:./a`, path_env: PathEnv.POSIX).str_view()! == `C:./a`);
-	assert(path::new(`C:./`, path_env: PathEnv.WIN32).str_view()! == `C:`);
-	assert(path::new(`C:./`, path_env: PathEnv.POSIX).str_view()! == `C:.`);
-	assert(path::new(`C:../a`, path_env: PathEnv.POSIX).str_view()! == `C:../a`);
-	assert(path::new(`C:../a`, path_env: PathEnv.WIN32).str_view()! == `C:..\a`);
-	assert(path::new(`C:..`, path_env: PathEnv.POSIX).str_view()! == `C:..`);
-	assert(path::new(`C:..`, path_env: PathEnv.WIN32).str_view()! == `C:..`);
-	assert(path::new(`C:`, path_env: PathEnv.WIN32).str_view()! == `C:`);
-	assert(path::new(`C:`, path_env: PathEnv.POSIX).str_view()! == `C:`);
+	assert(path::new(`C:a/b/../c`, path_env: PathEnv.WIN32).str_view()!! == `C:a\c`);
+	assert(path::new(`C:a/b/../c`, path_env: PathEnv.POSIX).str_view()!! == `C:a/c`);
+	assert(path::new(`C:a/b/../../c`, path_env: PathEnv.WIN32).str_view()!! == `C:c`);
+	assert(path::new(`C:a/b/../../c`, path_env: PathEnv.POSIX).str_view()!! == `c`);
+	assert(path::new(`C:a/b/..`, path_env: PathEnv.WIN32).str_view()!! == `C:a`);
+	assert(path::new(`C:a/b/..`, path_env: PathEnv.POSIX).str_view()!! == `C:a`);
+	assert(path::new(`C:a/b/../..`, path_env: PathEnv.WIN32).str_view()!! == `C:`);
+	assert(path::new(`C:a/b/../..`, path_env: PathEnv.POSIX).str_view()!! == `.`);
+	assert(path::new(`C:a/b/../c/../d`, path_env: PathEnv.WIN32).str_view()!! == `C:a\d`);
+	assert(path::new(`C:a/b/../c/../d`, path_env: PathEnv.POSIX).str_view()!! == `C:a/d`);
+	assert(path::new(`C:a/b//d`, path_env: PathEnv.WIN32).str_view()!! == `C:a\b\d`);
+	assert(path::new(`C:a/b//d`, path_env: PathEnv.POSIX).str_view()!! == `C:a/b/d`);
+	assert(path::new(`C:a/b/././.`, path_env: PathEnv.WIN32).str_view()!! == `C:a\b`);
+	assert(path::new(`C:a/b/././.`, path_env: PathEnv.POSIX).str_view()!! == `C:a/b`);
+	assert(path::new(`C:a/b/../../../c`, path_env: PathEnv.WIN32).str_view()!! == `C:..\c`);
+	assert(path::new(`C:./a`, path_env: PathEnv.WIN32).str_view()!! == `C:a`);
+	assert(path::new(`C:./a`, path_env: PathEnv.POSIX).str_view()!! == `C:./a`);
+	assert(path::new(`C:./`, path_env: PathEnv.WIN32).str_view()!! == `C:`);
+	assert(path::new(`C:./`, path_env: PathEnv.POSIX).str_view()!! == `C:.`);
+	assert(path::new(`C:../a`, path_env: PathEnv.POSIX).str_view()!! == `C:../a`);
+	assert(path::new(`C:../a`, path_env: PathEnv.WIN32).str_view()!! == `C:..\a`);
+	assert(path::new(`C:..`, path_env: PathEnv.POSIX).str_view()!! == `C:..`);
+	assert(path::new(`C:..`, path_env: PathEnv.WIN32).str_view()!! == `C:..`);
+	assert(path::new(`C:`, path_env: PathEnv.WIN32).str_view()!! == `C:`);
+	assert(path::new(`C:`, path_env: PathEnv.POSIX).str_view()!! == `C:`);
 
-	assert(path::new(`\\server\foo/a`, path_env: PathEnv.WIN32).str_view()! == `\\server\foo\a`);
-	assert(path::new(`\\server\foo/a`, path_env: PathEnv.POSIX).str_view()! == `\\server\foo/a`);
-	assert(path::new(`\\server\foo\a\b\..\c`, path_env: PathEnv.WIN32).str_view()! == `\\server\foo\a\c`);
-	assert(path::new(`\\server\foo\a\b\..\..\c`, path_env: PathEnv.WIN32).str_view()! == `\\server\foo\c`);
-	assert(path::new(`\\server\foo\a\b\..`, path_env: PathEnv.WIN32).str_view()! == `\\server\foo\a`);
-	assert(path::new(`\\server\foo\a\..`, path_env: PathEnv.WIN32).str_view()! == `\\server\foo\`);
-	assert(path::new(`\\server\foo\a\b\..\c\..\d`, path_env: PathEnv.WIN32).str_view()! == `\\server\foo\a\d`);
-	assert(path::new(`\\server\foo\a\b\\d`, path_env: PathEnv.WIN32).str_view()! == `\\server\foo\a\b\d`);
-	assert(path::new(`\\server\foo\a\b\.\.\.`, path_env: PathEnv.WIN32).str_view()! == `\\server\foo\a\b`);
-	assert(path::new(`\\server\foo\.\a`, path_env: PathEnv.WIN32).str_view()! == `\\server\foo\a`);
-	assert(path::new(`\\server\foo\.`, path_env: PathEnv.WIN32).str_view()! == `\\server\foo\`);
-	assert(path::new(`\\server\foo\`, path_env: PathEnv.WIN32).str_view()! == `\\server\foo\`);
+	assert(path::new(`\\server\foo/a`, path_env: PathEnv.WIN32).str_view()!! == `\\server\foo\a`);
+	assert(path::new(`\\server\foo/a`, path_env: PathEnv.POSIX).str_view()!! == `\\server\foo/a`);
+	assert(path::new(`\\server\foo\a\b\..\c`, path_env: PathEnv.WIN32).str_view()!! == `\\server\foo\a\c`);
+	assert(path::new(`\\server\foo\a\b\..\..\c`, path_env: PathEnv.WIN32).str_view()!! == `\\server\foo\c`);
+	assert(path::new(`\\server\foo\a\b\..`, path_env: PathEnv.WIN32).str_view()!! == `\\server\foo\a`);
+	assert(path::new(`\\server\foo\a\..`, path_env: PathEnv.WIN32).str_view()!! == `\\server\foo\`);
+	assert(path::new(`\\server\foo\a\b\..\c\..\d`, path_env: PathEnv.WIN32).str_view()!! == `\\server\foo\a\d`);
+	assert(path::new(`\\server\foo\a\b\\d`, path_env: PathEnv.WIN32).str_view()!! == `\\server\foo\a\b\d`);
+	assert(path::new(`\\server\foo\a\b\.\.\.`, path_env: PathEnv.WIN32).str_view()!! == `\\server\foo\a\b`);
+	assert(path::new(`\\server\foo\.\a`, path_env: PathEnv.WIN32).str_view()!! == `\\server\foo\a`);
+	assert(path::new(`\\server\foo\.`, path_env: PathEnv.WIN32).str_view()!! == `\\server\foo\`);
+	assert(path::new(`\\server\foo\`, path_env: PathEnv.WIN32).str_view()!! == `\\server\foo\`);
 
 }
 
-fn void! test_extension()
+fn void test_extension()
 {
 	assert(@catch(path::new(`C:`, path_env: PathEnv.WIN32).extension()));
 	assert(@catch(path::new(`C:`, path_env: PathEnv.POSIX).extension()));
@@ -213,159 +213,159 @@ fn void! test_extension()
 	assert(@catch(path::new(`file`, path_env: PathEnv.POSIX).extension()));
 	assert(@catch(path::new(`C:\temp\foo.bar\README`, path_env: PathEnv.WIN32).extension()));
 
-	assert(path::new_windows("file.txt").extension()! == "txt");
-	assert(path::new_posix("file.txt").extension()! == "txt");
+	assert(path::new_windows("file.txt").extension()!! == "txt");
+	assert(path::new_posix("file.txt").extension()!! == "txt");
 
-	assert(path::new_windows("a/b/file.txt").extension()! == "txt");
-	assert(path::new_posix("a/b/file.txt").extension()! == "txt");
+	assert(path::new_windows("a/b/file.txt").extension()!! == "txt");
+	assert(path::new_posix("a/b/file.txt").extension()!! == "txt");
 
-	assert(path::new_windows("a\\b\\file.txt").extension()! == "txt");
+	assert(path::new_windows("a\\b\\file.txt").extension()!! == "txt");
 
-	assert(path::new_windows("a.b/file.txt").extension()! == "txt");
-	assert(path::new_posix("a.b/file.txt").extension()! == "txt");
-	assert(path::new_windows("a.b/file.txt").extension()! == "txt");
-	assert(path::new_posix("a.b/file.txt").extension()! == "txt");
+	assert(path::new_windows("a.b/file.txt").extension()!! == "txt");
+	assert(path::new_posix("a.b/file.txt").extension()!! == "txt");
+	assert(path::new_windows("a.b/file.txt").extension()!! == "txt");
+	assert(path::new_posix("a.b/file.txt").extension()!! == "txt");
 
-	assert(path::new_windows("a.b\\file.txt").extension()! == "txt");
+	assert(path::new_windows("a.b\\file.txt").extension()!! == "txt");
 
-	assert(path::new_windows("domain.dot.com").extension()! == "com");
-	assert(path::new_posix("domain.dot.com").extension()! == "com");
+	assert(path::new_windows("domain.dot.com").extension()!! == "com");
+	assert(path::new_posix("domain.dot.com").extension()!! == "com");
 
-	assert(path::new_windows("image.jpeg").extension()! == "jpeg");
-	assert(path::new_posix("image.jpeg").extension()! == "jpeg");
+	assert(path::new_windows("image.jpeg").extension()!! == "jpeg");
+	assert(path::new_posix("image.jpeg").extension()!! == "jpeg");
 
-	assert(path::new_windows("../filename.ext").extension()! == "ext");
-	assert(path::new_posix("../filename.ext").extension()! == "ext");
+	assert(path::new_windows("../filename.ext").extension()!! == "ext");
+	assert(path::new_posix("../filename.ext").extension()!! == "ext");
 
 }
 
-fn void! test_has_extension()
+fn void test_has_extension()
 {
-	assert(!path::new(`C:\temp\foo.bar\README`, path_env: PathEnv.WIN32)!.has_extension(`bar\README`));
+	assert(!path::new(`C:\temp\foo.bar\README`, path_env: PathEnv.WIN32)!!.has_extension(`bar\README`));
 
-	assert(path::new_windows("file.txt")!.has_extension("txt"));
-	assert(path::new_posix("file.txt")!.has_extension("txt"));
+	assert(path::new_windows("file.txt")!!.has_extension("txt"));
+	assert(path::new_posix("file.txt")!!.has_extension("txt"));
 
-	assert(path::new_windows("a/b/file.txt")!.has_extension("txt"));
-	assert(path::new_posix("a/b/file.txt")!.has_extension("txt"));
+	assert(path::new_windows("a/b/file.txt")!!.has_extension("txt"));
+	assert(path::new_posix("a/b/file.txt")!!.has_extension("txt"));
 
-	assert(path::new_windows("a\\b\\file.txt")!.has_extension("txt"));
+	assert(path::new_windows("a\\b\\file.txt")!!.has_extension("txt"));
 
-	assert(path::new_windows("a.b/file.txt")!.has_extension("txt"));
-	assert(path::new_posix("a.b/file.txt")!.has_extension("txt"));
-	assert(path::new_windows("a.b/file.txt")!.has_extension("txt"));
-	assert(path::new_posix("a.b/file.txt")!.has_extension("txt"));
+	assert(path::new_windows("a.b/file.txt")!!.has_extension("txt"));
+	assert(path::new_posix("a.b/file.txt")!!.has_extension("txt"));
+	assert(path::new_windows("a.b/file.txt")!!.has_extension("txt"));
+	assert(path::new_posix("a.b/file.txt")!!.has_extension("txt"));
 
-	assert(path::new_windows("a.b\\file.txt")!.has_extension("txt"));
+	assert(path::new_windows("a.b\\file.txt")!!.has_extension("txt"));
 
-	assert(path::new_windows("domain.dot.com")!.has_extension("com"));
-	assert(path::new_posix("domain.dot.com")!.has_extension("com"));
+	assert(path::new_windows("domain.dot.com")!!.has_extension("com"));
+	assert(path::new_posix("domain.dot.com")!!.has_extension("com"));
 
-	assert(path::new_windows("image.jpeg")!.has_extension("jpeg"));
-	assert(path::new_posix("image.jpeg")!.has_extension("jpeg"));
+	assert(path::new_windows("image.jpeg")!!.has_extension("jpeg"));
+	assert(path::new_posix("image.jpeg")!!.has_extension("jpeg"));
 
-	assert(path::new_windows("../filename.ext")!.has_extension("ext"));
-	assert(path::new_posix("../filename.ext")!.has_extension("ext"));
+	assert(path::new_windows("../filename.ext")!!.has_extension("ext"));
+	assert(path::new_posix("../filename.ext")!!.has_extension("ext"));
 
 }
 
-fn void! test_basename()
+fn void test_basename()
 {
-	assert(path::new_windows("file.txt").basename()! == "file.txt");
-	assert(path::new_posix("file.txt").basename()! == "file.txt");
+	assert(path::new_windows("file.txt").basename()!! == "file.txt");
+	assert(path::new_posix("file.txt").basename()!! == "file.txt");
 
-	assert(path::new_windows("a/b/file.txt").basename()! == "file.txt");
-	assert(path::new_posix("a/b/file.txt").basename()! == "file.txt");
+	assert(path::new_windows("a/b/file.txt").basename()!! == "file.txt");
+	assert(path::new_posix("a/b/file.txt").basename()!! == "file.txt");
 
-	assert(path::new_windows("a.b/file.txt").basename()! == "file.txt");
-	assert(path::new_posix("a.b/file.txt").basename()! == "file.txt");
+	assert(path::new_windows("a.b/file.txt").basename()!! == "file.txt");
+	assert(path::new_posix("a.b/file.txt").basename()!! == "file.txt");
 
-	assert(path::new_windows("a.b/file.txt").basename()! == "file.txt");
-	assert(path::new_posix("a.b/file.txt").basename()! == "file.txt");
+	assert(path::new_windows("a.b/file.txt").basename()!! == "file.txt");
+	assert(path::new_posix("a.b/file.txt").basename()!! == "file.txt");
 
-	assert(path::new_windows("../filename.ext").basename()! == "filename.ext");
-	assert(path::new_posix("../filename.ext").basename()! == "filename.ext");
+	assert(path::new_windows("../filename.ext").basename()!! == "filename.ext");
+	assert(path::new_posix("../filename.ext").basename()!! == "filename.ext");
 
-	assert(path::new_windows("C:").basename()! == "");
-	assert(path::new_posix("C:").basename()! == "C:");
+	assert(path::new_windows("C:").basename()!! == "");
+	assert(path::new_posix("C:").basename()!! == "C:");
 
-	assert(path::new_windows("../..").basename()! == "..");
-	assert(path::new_posix("../..").basename()! == "..");
+	assert(path::new_windows("../..").basename()!! == "..");
+	assert(path::new_posix("../..").basename()!! == "..");
 
-	assert(path::new_windows(`\\server\abc`).basename()! == "");
-	assert(path::new_posix(`\\server\abc`).basename()! == `\\server\abc`);
+	assert(path::new_windows(`\\server\abc`).basename()!! == "");
+	assert(path::new_posix(`\\server\abc`).basename()!! == `\\server\abc`);
 }
 
-fn void! test_dirname()
+fn void test_dirname()
 {
-	assert(path::new_posix("").dirname()! == ".");
-	assert(path::new_posix("/file").dirname()! == "/");
-	assert(path::new_posix("///").dirname()! == "/");
-	assert(path::new_windows("d:").dirname()! == "d:");
-	assert(path::new_windows("d:file").dirname()! == "d:");
-	assert(path::new_windows(`d:\file`).dirname()! == `d:\`);
+	assert(path::new_posix("").dirname()!! == ".");
+	assert(path::new_posix("/file").dirname()!! == "/");
+	assert(path::new_posix("///").dirname()!! == "/");
+	assert(path::new_windows("d:").dirname()!! == "d:");
+	assert(path::new_windows("d:file").dirname()!! == "d:");
+	assert(path::new_windows(`d:\file`).dirname()!! == `d:\`);
 
-	assert(path::new_windows("file.txt").dirname()! == ".");
-	assert(path::new_posix("file.txt").dirname()! == ".");
+	assert(path::new_windows("file.txt").dirname()!! == ".");
+	assert(path::new_posix("file.txt").dirname()!! == ".");
 
-	assert(path::new_windows("a/b/file.txt").dirname()! == `a\b`);
-	assert(path::new_posix("a/b/file.txt").dirname()! == "a/b");
+	assert(path::new_windows("a/b/file.txt").dirname()!! == `a\b`);
+	assert(path::new_posix("a/b/file.txt").dirname()!! == "a/b");
 
-	assert(path::new_windows("a.b/file.txt").dirname()! == "a.b");
-	assert(path::new_posix("a.b/file.txt").dirname()! == "a.b");
+	assert(path::new_windows("a.b/file.txt").dirname()!! == "a.b");
+	assert(path::new_posix("a.b/file.txt").dirname()!! == "a.b");
 
-	assert(path::new_windows("../filename.ext").dirname()! == "..");
-	assert(path::new_posix("../filename.ext").dirname()! == "..");
+	assert(path::new_windows("../filename.ext").dirname()!! == "..");
+	assert(path::new_posix("../filename.ext").dirname()!! == "..");
 
-	assert(path::new_windows("C:").dirname()! == "C:");
-	assert(path::new_posix("C:").dirname()! == ".");
+	assert(path::new_windows("C:").dirname()!! == "C:");
+	assert(path::new_posix("C:").dirname()!! == ".");
 
-	assert(path::new_windows("C:/").dirname()! == "C:\\");
-	assert(path::new_posix("C:/").dirname()! == ".");
+	assert(path::new_windows("C:/").dirname()!! == "C:\\");
+	assert(path::new_posix("C:/").dirname()!! == ".");
 
-	assert(path::new_windows("C:/a").dirname()! == "C:\\");
-	assert(path::new_posix("C:/a").dirname()! == "C:");
+	assert(path::new_windows("C:/a").dirname()!! == "C:\\");
+	assert(path::new_posix("C:/a").dirname()!! == "C:");
 
-	assert(path::new_windows("../..").dirname()! == "..");
-	assert(path::new_posix("../..").dirname()! == "..");
+	assert(path::new_windows("../..").dirname()!! == "..");
+	assert(path::new_posix("../..").dirname()!! == "..");
 
-	assert(path::new_windows(`\\server\share\dir\file`).dirname()! == `\\server\share\dir`);
-	assert(path::new_windows(`\\server\share\file`).dirname()! == `\\server\share`);
-	assert(path::new_windows(`\\server\share\`).dirname()! == `\\server\share`);
-	assert(path::new_windows(`\\server\share`).dirname()! == `\\server\share`);
-	assert(path::new_posix(`\\server\`).dirname()! == `.`);
+	assert(path::new_windows(`\\server\share\dir\file`).dirname()!! == `\\server\share\dir`);
+	assert(path::new_windows(`\\server\share\file`).dirname()!! == `\\server\share`);
+	assert(path::new_windows(`\\server\share\`).dirname()!! == `\\server\share`);
+	assert(path::new_windows(`\\server\share`).dirname()!! == `\\server\share`);
+	assert(path::new_posix(`\\server\`).dirname()!! == `.`);
 }
 
-fn void! test_path_volume()
+fn void test_path_volume()
 {
-	assert(path::new_windows(`C:\abs`).volume_name()! == `C:`);
-	assert(path::new_windows(`C:abs`).volume_name()! == `C:`);
-	assert(path::new_posix(`C:/abs`).volume_name()! == ``);
-	assert(path::new_posix(`C:abs`).volume_name()! == ``);
-	assert(path::new_windows(`\\server\foo`).volume_name()! == `\\server\foo`);
-    assert(path::new_windows(`\\server\foo\abc`).volume_name()! == `\\server\foo`);
+	assert(path::new_windows(`C:\abs`).volume_name()!! == `C:`);
+	assert(path::new_windows(`C:abs`).volume_name()!! == `C:`);
+	assert(path::new_posix(`C:/abs`).volume_name()!! == ``);
+	assert(path::new_posix(`C:abs`).volume_name()!! == ``);
+	assert(path::new_windows(`\\server\foo`).volume_name()!! == `\\server\foo`);
+    assert(path::new_windows(`\\server\foo\abc`).volume_name()!! == `\\server\foo`);
 }
 
-fn void! test_path_is_absolute()
+fn void test_path_is_absolute()
 {
-    assert(!path::new_posix("").is_absolute()!);
-    assert(path::new_posix("/").is_absolute()!);
-    assert(path::new_posix("/a/b").is_absolute()!);
-    assert(!path::new_posix("a/b").is_absolute()!);
+    assert(!path::new_posix("").is_absolute()!!);
+    assert(path::new_posix("/").is_absolute()!!);
+    assert(path::new_posix("/a/b").is_absolute()!!);
+    assert(!path::new_posix("a/b").is_absolute()!!);
 
-	assert(!path::new_windows(`C:`).is_absolute()!);
-	assert(path::new_windows(`C:\abs`).is_absolute()!);
-	assert(!path::new_windows(`C:abs`).is_absolute()!);
-	assert(path::new_windows(`\\server\foo`).is_absolute()!);
-	assert(path::new_windows(`\\server\foo\abc`).is_absolute()!);
+	assert(!path::new_windows(`C:`).is_absolute()!!);
+	assert(path::new_windows(`C:\abs`).is_absolute()!!);
+	assert(!path::new_windows(`C:abs`).is_absolute()!!);
+	assert(path::new_windows(`\\server\foo`).is_absolute()!!);
+	assert(path::new_windows(`\\server\foo\abc`).is_absolute()!!);
 }
 
-fn void! test_path_absolute()
+fn void test_path_absolute()
 {
 $if env::WIN32:
-	assert(path::new_windows(`C:\abs`).new_absolute()!.str_view() == `C:\abs`);
+	assert(path::new_windows(`C:\abs`).new_absolute()!!.str_view() == `C:\abs`);
 $else
-    assert(path::new_posix("/").new_absolute()!.str_view() == "/");
-    assert(path::new_posix(".").new_absolute()!.str_view() == path::temp_cwd()!!.str_view());
+    assert(path::new_posix("/").new_absolute()!!.str_view() == "/");
+    assert(path::new_posix(".").new_absolute()!!.str_view() == path::temp_cwd()!!.str_view());
 $endif
 }

test/unit/stdlib/io/scanner.c3

@@ -10,7 +10,7 @@ struct ScanTest
     String left_over;
 }
 
-fn void! scanner()
+fn void scanner()
 {
     ScanTest[] tcases = {
         {"aa,,bb", {"aa"}, "bb"},
@@ -35,7 +35,7 @@ fn void! scanner()
         		case SearchResult.MISSING:
         			break LOOP;
         		default:
-        			return err?;
+        			return err?!!;
         	}
         	String str = (String)res;
             results.push(str.tconcat(""));
@@ -49,7 +49,7 @@ fn void! scanner()
     }
 }
 
-fn void! scanner_as_reader()
+fn void scanner_as_reader()
 {
 	ByteReader br;
 	br.init("Lorem ipsum sit.");
@@ -57,10 +57,10 @@ fn void! scanner_as_reader()
 	char[8] buffer;
 	sc.init(&br, buffer[..]);
 
-	sc.scan(" ")!;
+	sc.scan(" ")!!;
 
 	char[16] res;
-	usz n = sc.read(&res)!;
+	usz n = sc.read(&res)!!;
 	String str = (String)res[:n];
 
 	assert(str == "ipsum sit.", "got '%s'; want 'ipsum sit.'", str);

test/unit/stdlib/io/stream.c3

@@ -75,13 +75,13 @@ fn void write_short_bytearray_test()
 fn void read_tiny_bytearray_test()
 {
 	ByteReader reader = io::wrap_bytes(&&x'07aabbcc00112233');
-	char[] read = io::read_tiny_bytearray(&reader, allocator: allocator::heap())!;
+	char[] read = io::read_tiny_bytearray(&reader, allocator: allocator::heap())!!;
 	assert(read == &&x'aabbcc00112233');
 }
 
 fn void read_short_bytearray_test()
 {
 	ByteReader reader = io::wrap_bytes(&&x'0007aabbcc00112233');
-	char[] read = io::read_short_bytearray(&reader, allocator: allocator::heap())!;
+	char[] read = io::read_short_bytearray(&reader, allocator: allocator::heap())!!;
 	assert(read == &&x'aabbcc00112233');
 }

test/unit/stdlib/io/teereader.c3

@@ -1,6 +1,6 @@
 module std::io @test;
 
-fn void! test_teereader()
+fn void test_teereader()
 {
 	String want = "foobar";
 
@@ -8,7 +8,7 @@ fn void! test_teereader()
 	TeeReader r = tee_reader(ByteReader{}.init(want), w.temp_init());
 
 	char[16] buf;
-	usz n = r.read(buf[..])!;
+	usz n = r.read(buf[..])!!;
 
 	String got = w.str_view();
 	assert(n == want.len, "teereader: invalid length");

test/unit/stdlib/io/varint.c3

@@ -1,22 +1,22 @@
 module std::io::varint @test;
 import std::io;
 
-fn void! write_read()
+fn void write_read()
 {
 	ByteBuffer buf;
-	buf.temp_init(16)!;
+	buf.temp_init(16)!!;
 	usz n;
 	uint x;
 	uint y;
 
-	n = io::write_varint(&buf, 123)!;
+	n = io::write_varint(&buf, 123)!!;
 	assert(n == 1, "got %d; want 1", n);
-	io::read_varint(&buf, &y)!;
+	io::read_varint(&buf, &y)!!;
 	assert(y == 123, "got %d; want 123", y);
 
-	n = io::write_varint(&buf, 123456789)!;
+	n = io::write_varint(&buf, 123456789)!!;
 	assert(n == 4, "got %d; want 4", n);
-	io::read_varint(&buf, &y)!;
+	io::read_varint(&buf, &y)!!;
 	assert(y == 123456789, "got %d; want 123456789", y);
 }
 
@@ -26,7 +26,7 @@ struct VarIntTest
 	char[] bytes;
 }
 
-fn void! samples()
+fn void samples()
 {
 	VarIntTest[] tcases = {
 		{ 0,          { 0x00 } },
@@ -46,7 +46,7 @@ fn void! samples()
 	{
 		ByteWriter bw;
 		bw.temp_init();
-		usz n = io::write_varint(&bw, tc.in)!;
+		usz n = io::write_varint(&bw, tc.in)!!;
 		assert(n == tc.bytes.len, "got %d; want %d", n, tc.bytes.len);
 		char[] bytes = bw.bytes[:bw.index];
 		assert(bytes == tc.bytes, "got %d; want %d", bytes, tc.bytes);

test/unit/stdlib/macros/core_builtins.c3

@@ -1,18 +1,18 @@
 module core_builtin_tests;
 
-fn void! test_likely() @test
+fn void test_likely() @test
 {
 	assert(@likely(2 > 1));
 	assert(@likely(2 > 1, 0.5));
 }
 
-fn void! test_unlikely() @test
+fn void test_unlikely() @test
 {
 	assert(!@unlikely(2 < 1));
 	assert(!@unlikely(2 < 1, 0.5));
 }
 
-fn void! test_expect() @test
+fn void test_expect() @test
 {
 	assert(@expect(2 > 1, true));
 	assert(!@expect(2 < 1, false));

test/unit/stdlib/math/math.c3

@@ -1,7 +1,7 @@
 module math_tests;
 import std::math;
 
-fn void! test_abs() @test
+fn void test_abs() @test
 {
 	int x = -21;
 	assert(math::abs(x) == 21);
@@ -16,7 +16,7 @@ fn void! test_abs() @test
 	assert(math::abs(yy) == double[<3>] { 1, 0.5, 1000 });
 }
 
-fn void! test_acos() @test
+fn void test_acos() @test
 {
 	int [<5>] in = { 231, -231, 1, 0, -1 };
 	double [<3>] out = { 0., math::PI_2, math::PI };
@@ -54,7 +54,7 @@ fn void! test_acos() @test
 }
 
 
-fn void! test_acosh() @test
+fn void test_acosh() @test
 {
 	int [<5>] in = { 0, -1, 1, 2, 231 };
 	double [<3>] out = { 0., 1.3169578969248166, 6.135560205979194 };
@@ -79,7 +79,7 @@ fn void! test_acosh() @test
 	}
 }
 
-fn void! test_asin() @test
+fn void test_asin() @test
 {
 	int [<5>] in = { 231, -231, 1, 0, -1 };
 	double [<3>] out = { math::PI_2, 0., -math::PI_2 };
@@ -113,7 +113,7 @@ fn void! test_asin() @test
 	}
 }
 
-fn void! test_asinh() @test
+fn void test_asinh() @test
 {
 	int [<5>] in = { 231, 1, 0, -1, -231 };
 	double [<5>] out = { 6.135569576118435, 0.881373587019543, 0., -0.881373587019543, -6.135569576118435 };
@@ -131,7 +131,7 @@ fn void! test_asinh() @test
 	}
 }
 
-fn void! test_atan() @test
+fn void test_atan() @test
 {
 	int [<9>] in = { 231, 3, 2, 1, 0, -1, -2, -3, -231 };
 	double [<9>] out = { 1.5664673495078372, 1.2490457723982544, 1.1071487177940904, math::PI_4, 0., -math::PI_4, -1.1071487177940904, -1.2490457723982544, -1.5664673495078372 };
@@ -158,7 +158,7 @@ fn void! test_atan() @test
 	}
 }
 
-fn void! test_atanh() @test
+fn void test_atanh() @test
 {
 	int [<4>] in = { 231, -231, 1, -1 };
 	double [<6>] in2 = {0.8, 0.5, 0.3, -0.3, -0.5, -0.8 };
@@ -190,7 +190,7 @@ fn void! test_atanh() @test
 	}
 }
 
-fn void! test_ceil() @test
+fn void test_ceil() @test
 {
 	double d = -123.1;
 	assert(math::ceil(d) == -123.0);
@@ -214,7 +214,7 @@ fn void! test_ceil() @test
 	assert(math::ceil(vec) == double[<5>] { -123, 124, 1, 0, 0 });
 }
 
-fn void! test_cos() @test
+fn void test_cos() @test
 {
 	int [<5>] in = { 231, 1, 0, -1, -231 };
 	double [<5>] out = { 0.09280621889587707, 0.54030230586813972 , 1., 0.54030230586813972, 0.09280621889587707 };
@@ -243,7 +243,7 @@ fn void! test_cos() @test
 	}
 }
 
-fn void! test_exp() @test
+fn void test_exp() @test
 {
 	int [<5>] in = { 2, 1, 0, -1, -2 };
 	double [<5>] out = { 7.38905609893065, math::E , 1., 0.36787944117144233, 0.1353352832366127 };
@@ -272,7 +272,7 @@ fn void! test_exp() @test
 	}
 }
 
-fn void! test_floor() @test
+fn void test_floor() @test
 {
 	double d = -123.1;
 	assert(math::floor(d) == -124.0);
@@ -296,7 +296,7 @@ fn void! test_floor() @test
 	assert(math::floor(vec) == double[<5>] { -124, 123, 0, -1, 0 });
 }
 
-fn void! test_log() @test
+fn void test_log() @test
 {
 	double x = math::E;
 	assert(math::log(x, x) == 1.0);
@@ -309,7 +309,7 @@ fn void! test_log() @test
 	assert(math::log(yy, 10) == float[<3>] { 1.0, 2.0, 3.0 });
 }
 
-fn void! test_sign() @test
+fn void test_sign() @test
 {
 	int x = -21;
 	assert(math::sign(x) == -1);
@@ -327,7 +327,7 @@ fn void! test_sign() @test
 }
 
 
-fn void! test_sin() @test
+fn void test_sin() @test
 {
 	int [<5>] in = { 231, 1, 0, -1, -231 };
 	double [<5>] out = { -0.99568418975810324, 0.84147098480789651 , 0., -0.84147098480789651, 0.99568418975810324 };
@@ -356,7 +356,7 @@ fn void! test_sin() @test
 	}
 }
 
-fn void! test_tan() @test
+fn void test_tan() @test
 {
 	int [<5>] in = { 231, 1, 0, -1, -231 };
 	double [<5>] out = { -10.7286365246191129, 1.5574077246549022 , 0., -1.5574077246549022, 10.7286365246191129 };
@@ -385,7 +385,7 @@ fn void! test_tan() @test
 	}
 }
 
-fn void! test_trunc() @test
+fn void test_trunc() @test
 {
 	double d = -123.9;
 	assert(math::trunc(d) == -123.0);
@@ -409,7 +409,7 @@ fn void! test_trunc() @test
 	assert(math::trunc(vec) == double[<5>] { -123, 123, 0, 0, 0 });
 }
 
-fn void! test_round_decimals() @test
+fn void test_round_decimals() @test
 {
 	double d = 0.532451241142;
 	float d_f = 0.532451241142;
@@ -420,7 +420,7 @@ fn void! test_round_decimals() @test
 	assert(math::round_to_decimals(d_f, 5) == 0.53245f);
 }
 
-fn void! test() @test
+fn void test() @test
 {
 	double radians = math::deg_to_rad(45);
 	float radians_f = (float)math::deg_to_rad(45);
@@ -429,7 +429,7 @@ fn void! test() @test
 	assert(math::round_to_decimals(radians_f, 3) == 0.785f);
 }
 
-fn void! test_muldiv()
+fn void test_muldiv()
 {
 	char a = 20;
 	assert(a.muldiv(20, 10) == 40);
@@ -459,7 +459,7 @@ fn void! test_muldiv()
 	assert(k.muldiv(20,-10) == ichar[<4>]{-40,-60,-80,-100});
 }
 
-fn void! test_gcd() @test
+fn void test_gcd() @test
 {
 	assert(math::gcd(20,15) == 5);
 	assert(math::gcd(15,20) == 5);
@@ -471,7 +471,7 @@ fn void! test_gcd() @test
 	assert(math::gcd(2,4,6,8) == 2);
 }
 
-fn void! test_lcm() @test
+fn void test_lcm() @test
 {
 	assert(math::lcm(4,5) == 20);
 	assert(math::lcm(6,10) == 30);

test/unit/stdlib/math/math_complex.c3

@@ -9,14 +9,14 @@ import std::math;
 
 def ComplexType = Complex(<ElementType>);
 
-fn void! complex_mul_imaginary()
+fn void complex_mul_imaginary()
 {
 	ComplexType i = complex::IMAGINARY(<ElementType>);
 	assert(i.mul(i).equals(ComplexType{-1, 0}));
 	assert(i.mul(i).mul(i).equals(ComplexType{0, -1}));
 }
 
-fn void! complex_add()
+fn void complex_add()
 {
 	ComplexType a = {3, 4};
 	ComplexType b = {1, 2};
@@ -24,7 +24,7 @@ fn void! complex_add()
 	assert(a.add_each(1).equals(ComplexType{4, 5}));
 }
 
-fn void! complex_sub()
+fn void complex_sub()
 {
 	ComplexType a = {3, 4};
 	ComplexType b = {1, 2};
@@ -32,25 +32,25 @@ fn void! complex_sub()
 	assert(a.sub_each(1).equals(ComplexType{2, 3}));
 }
 
-fn void! complex_scale()
+fn void complex_scale()
 {
 	ComplexType a = {2, 1};
 	assert(a.scale(2).equals(ComplexType{4, 2}));
 }
 
-fn void! complex_conjugate()
+fn void complex_conjugate()
 {
 	ComplexType a = {3, 4};
 	assert(a.conjugate().equals(ComplexType{3, -4}));
 }
 
-fn void! complex_inverse() @if(types::is_float(ElementType))
+fn void complex_inverse() @if(types::is_float(ElementType))
 {
 	ComplexType a = {3, 4};
 	assert(a.inverse().mul(a).equals(complex::IDENTITY(<ElementType>)));
 }
 
-fn void! complex_div() @if(types::is_float(ElementType))
+fn void complex_div() @if(types::is_float(ElementType))
 {
 	ComplexType a = {2, 5};
 	ComplexType b = {4, -1};

test/unit/stdlib/math/math_is_even_odd.c3

@@ -16,7 +16,7 @@ macro test(start, ...)
     $endfor;
 }
 
-fn void! tests() @test
+fn void tests() @test
 {
     test(0, char, ushort, uint, ulong, uptr, usz, uint128);
     test(-4, ichar, short, int, long, iptr, isz, int128);

test/unit/stdlib/math/matrix.c3

@@ -106,10 +106,10 @@ fn void test_mat2()
 		assert(calc.m == value.m);
 }
 
-fn void! test_mat2_inverse()
+fn void test_mat2_inverse()
 {
 		Matrix2 a = { 3, 5, 6, 2 };
-		Matrix2 a_inv = a.inverse()!;
+		Matrix2 a_inv = a.inverse()!!;
 		double sum = ((double[<4>])a_inv.mul(a).m).sum();
 		assert(math::abs(sum - 2.0) < math::FLOAT_EPSILON,
 			"wrong inverse: sum of all elements should be 2, but got: %g", sum);

test/unit/stdlib/mem/temp_mem.c3

@@ -57,12 +57,12 @@ fn String inner4(String s, Allocator a)
     };
 }
 
-fn void! test_temp_allocator() @test
+fn void test_temp_allocator() @test
 {
     assert("foofoofoofoofoofooabcaaaaaa" == add("abc", allocator::temp(), 5), "was %s", add("abc", allocator::temp(), 5));
 }
 
-fn void! test_temp_allocator2() @test
+fn void test_temp_allocator2() @test
 {
     assert("fooxyz0123456789xy**********" == breakit("xyz0123456789", allocator::temp()));
 }

test/unit/stdlib/net/inetaddr.c3

@@ -9,30 +9,30 @@ fn void test_ipv4()
 
 }
 
-fn void! test_ipv4_to_string()
+fn void test_ipv4_to_string()
 {
-	InetAddress a = net::ipv4_from_str("127.0.0.1")!;
+	InetAddress a = net::ipv4_from_str("127.0.0.1")!!;
 	assert(a.to_new_string() == "127.0.0.1");
 }
 
-fn void! test_ipv6_to_string()
+fn void test_ipv6_to_string()
 {
-	InetAddress a = net::ipv6_from_str("2001:db8::2:1")!;
+	InetAddress a = net::ipv6_from_str("2001:db8::2:1")!!;
 	a.to_new_string();
 	assert(a.to_new_string() == "2001:0db8:0000:0000:0000:0000:0002:0001");
-	assert(net::ipv6_from_str("2001:db8::1").to_new_string()! == "2001:0db8:0000:0000:0000:0000:0000:0001");
-	assert(net::ipv6_from_str("::1").to_new_string()! == "0000:0000:0000:0000:0000:0000:0000:0001");
-	assert(net::ipv6_from_str("2001::1").to_new_string()! == "2001:0000:0000:0000:0000:0000:0000:0001");
-	assert(net::ipv6_from_str("2001:db8:1234::").to_new_string()! == "2001:0db8:1234:0000:0000:0000:0000:0000");
-	assert(net::ipv6_from_str("2001::").to_new_string()! == "2001:0000:0000:0000:0000:0000:0000:0000");
-	assert(net::ipv6_from_str("::").to_new_string()! == "0000:0000:0000:0000:0000:0000:0000:0000");
+	assert(net::ipv6_from_str("2001:db8::1").to_new_string()!! == "2001:0db8:0000:0000:0000:0000:0000:0001");
+	assert(net::ipv6_from_str("::1").to_new_string()!! == "0000:0000:0000:0000:0000:0000:0000:0001");
+	assert(net::ipv6_from_str("2001::1").to_new_string()!! == "2001:0000:0000:0000:0000:0000:0000:0001");
+	assert(net::ipv6_from_str("2001:db8:1234::").to_new_string()!! == "2001:0db8:1234:0000:0000:0000:0000:0000");
+	assert(net::ipv6_from_str("2001::").to_new_string()!! == "2001:0000:0000:0000:0000:0000:0000:0000");
+	assert(net::ipv6_from_str("::").to_new_string()!! == "0000:0000:0000:0000:0000:0000:0000:0000");
 }
 
-fn void! test_ipv4_parse()
+fn void test_ipv4_parse()
 {
-	InetAddress a = net::ipv4_from_str("127.0.0.1")!;
+	InetAddress a = net::ipv4_from_str("127.0.0.1")!!;
 	assert(a.ipv4.a == 127 && a.ipv4.b == 0 && a.ipv4.c == 0 && a.ipv4.d == 1);
-	a = net::ipv4_from_str("255.254.253.255")!;
+	a = net::ipv4_from_str("255.254.253.255")!!;
 	assert(a.ipv4.a == 255 && a.ipv4.b == 254 && a.ipv4.c == 253 && a.ipv4.d == 255);
 	assert(@catch(net::ipv4_from_str(".1.1.1.1")));
 	assert(@catch(net::ipv4_from_str("1..1.1")));

test/unit/stdlib/net/url.c3

@@ -5,9 +5,9 @@ import std::net::url;
 
 // Parser tests
 
-fn void! test_parse_foo()
+fn void test_parse_foo()
 {
-	Url url = url::parse("foo://example.com:8042/over/there?name=ferret#nose")!;
+	Url url = url::parse("foo://example.com:8042/over/there?name=ferret#nose")!!;
 
 	assert(url.scheme == "foo", "got '%s'", url.scheme);
 	assert(url.host == "example.com", "got '%s'", url.host);
@@ -19,9 +19,9 @@ fn void! test_parse_foo()
 	assert(url.fragment == "nose", "got: '%s'", url.fragment);
 }
 
-fn void! test_parse_urn()
+fn void test_parse_urn()
 {
-	Url url = url::parse("urn:example:animal:ferret:nose")!;
+	Url url = url::parse("urn:example:animal:ferret:nose")!!;
 
 	assert(url.scheme == "urn");
 	assert(url.host == "");
@@ -33,9 +33,9 @@ fn void! test_parse_urn()
 	assert(url.fragment == "");
 }
 
-fn void! test_parse_jdbc()
+fn void test_parse_jdbc()
 {
-	Url url = url::parse("jdbc:mysql://test_user:ouupppssss@localhost:3306/sakila?profileSQL=true")!;
+	Url url = url::parse("jdbc:mysql://test_user:ouupppssss@localhost:3306/sakila?profileSQL=true")!!;
 
 	assert(url.scheme == "jdbc:mysql");
 	assert(url.host == "localhost");
@@ -47,9 +47,9 @@ fn void! test_parse_jdbc()
 	assert(url.fragment == "");
 }
 
-fn void! test_parse_ftp()
+fn void test_parse_ftp()
 {
-	Url url = url::parse("ftp://ftp.is.co.za/rfc/rfc1808.txt")!;
+	Url url = url::parse("ftp://ftp.is.co.za/rfc/rfc1808.txt")!!;
 
 	assert(url.scheme == "ftp");
 	assert(url.host == "ftp.is.co.za");
@@ -61,9 +61,9 @@ fn void! test_parse_ftp()
 	assert(url.fragment == "");
 }
 
-fn void! test_parse_http()
+fn void test_parse_http()
 {
-	Url url = url::parse("http://www.ietf.org/rfc/rfc2396.txt#header1")!;
+	Url url = url::parse("http://www.ietf.org/rfc/rfc2396.txt#header1")!!;
 
 	assert(url.scheme == "http");
 	assert(url.host == "www.ietf.org");
@@ -75,9 +75,9 @@ fn void! test_parse_http()
 	assert(url.fragment == "header1");
 }
 
-fn void! test_parse_ldap()
+fn void test_parse_ldap()
 {
-	Url url = url::parse("ldap://[2001:db8::7]/c=GB?objectClass=one&objectClass=two")!;
+	Url url = url::parse("ldap://[2001:db8::7]/c=GB?objectClass=one&objectClass=two")!!;
 
 	assert(url.scheme == "ldap");
 	assert(url.host == "[2001:db8::7]");
@@ -89,9 +89,9 @@ fn void! test_parse_ldap()
 	assert(url.fragment == "");
 }
 
-fn void! test_parse_mailto()
+fn void test_parse_mailto()
 {
-	Url url = url::parse("mailto:John.Doe@example.com")!;
+	Url url = url::parse("mailto:John.Doe@example.com")!!;
 
 	assert(url.scheme == "mailto");
 	assert(url.host == "");
@@ -103,9 +103,9 @@ fn void! test_parse_mailto()
 	assert(url.fragment == "");
 }
 
-fn void! test_parse_news()
+fn void test_parse_news()
 {
-	Url url = url::parse("news:comp.infosystems.www.servers.unix")!;
+	Url url = url::parse("news:comp.infosystems.www.servers.unix")!!;
 
 	assert(url.scheme == "news");
 	assert(url.host == "");
@@ -117,9 +117,9 @@ fn void! test_parse_news()
 	assert(url.fragment == "");
 }
 
-fn void! test_parse_tel()
+fn void test_parse_tel()
 {
-	Url url = url::parse("tel:+1-816-555-1212")!;
+	Url url = url::parse("tel:+1-816-555-1212")!!;
 
 	assert(url.scheme == "tel");
 	assert(url.host == "");
@@ -131,9 +131,9 @@ fn void! test_parse_tel()
 	assert(url.fragment == "");
 }
 
-fn void! test_parse_telnet()
+fn void test_parse_telnet()
 {
-	Url url = url::parse("telnet://192.0.2.16:80/")!;
+	Url url = url::parse("telnet://192.0.2.16:80/")!!;
 
 	assert(url.scheme == "telnet");
 	assert(url.host == "192.0.2.16");
@@ -145,9 +145,9 @@ fn void! test_parse_telnet()
 	assert(url.fragment == "");
 }
 
-fn void! test_parse_urn2()
+fn void test_parse_urn2()
 {
-	Url url = url::parse("urn:oasis:names:specification:docbook:dtd:xml:4.1.2")!;
+	Url url = url::parse("urn:oasis:names:specification:docbook:dtd:xml:4.1.2")!!;
 
 	assert(url.scheme == "urn");
 	assert(url.host == "");
@@ -161,7 +161,7 @@ fn void! test_parse_urn2()
 
 fn void test_parse_empty()
 {
-	Url url = url::parse("       ")!;
+	Url url = url::parse("       ")!!;
 
 	assert(url.scheme == "");
 	assert(url.host == "");
@@ -175,7 +175,7 @@ fn void test_parse_empty()
 
 // to_string() tests
 
-fn void! test_string_foo()
+fn void test_string_foo()
 {
 	Url url = {.scheme="foo", .host="example.com", .port=8042, .path="/over/there", .query="name=ferret", .fragment="nose"};
 	String str = string::new_format("%s", url);
@@ -183,7 +183,7 @@ fn void! test_string_foo()
 	assert(str == "foo://example.com:8042/over/there?name=ferret#nose");
 }
 
-fn void! test_string_urn()
+fn void test_string_urn()
 {
 	Url url = {.scheme="urn", .path="example:animal:ferret:nose"};
 	String str = string::new_format("%s", url);
@@ -191,7 +191,7 @@ fn void! test_string_urn()
 	assert(str == "urn:example:animal:ferret:nose");
 }
 
-fn void! test_string_jdbc()
+fn void test_string_jdbc()
 {
 	Url url = {.scheme="jdbc:mysql", .host="localhost", .port=3306, .username="test_user", .password="ouupppssss", .path="/sakila", .query="profileSQL=true"};
 	String str = string::new_format("%s", url);
@@ -199,7 +199,7 @@ fn void! test_string_jdbc()
 	assert(str == "jdbc:mysql://test_user:ouupppssss@localhost:3306/sakila?profileSQL=true");
 }
 
-fn void! test_string_ftp()
+fn void test_string_ftp()
 {
 	Url url = {.scheme="ftp", .host="ftp.is.co.za", .path="/rfc/rfc1808.txt"};
 	String str = string::new_format("%s", url);
@@ -207,7 +207,7 @@ fn void! test_string_ftp()
 	assert(str == "ftp://ftp.is.co.za/rfc/rfc1808.txt");
 }
 
-fn void! test_string_http()
+fn void test_string_http()
 {
 	Url url = {.scheme="http", .host="www.ietf.org", .path="/rfc/rfc2396.txt#header1"};
 	String str = string::new_format("%s", url);
@@ -215,7 +215,7 @@ fn void! test_string_http()
 	assert(str == "http://www.ietf.org/rfc/rfc2396.txt#header1");
 }
 
-fn void! test_string_ldap()
+fn void test_string_ldap()
 {
 	Url url = {.scheme="ldap", .host="[2001:db8::7]", .path="/c=GB?objectClass=one&objectClass=two"};
 	String str = string::new_format("%s", url);
@@ -223,7 +223,7 @@ fn void! test_string_ldap()
 	assert(str == "ldap://[2001:db8::7]/c=GB?objectClass=one&objectClass=two");
 }
 
-fn void! test_string_mailto()
+fn void test_string_mailto()
 {
 	Url url = {.scheme="mailto", .path="John.Doe@example.com"};
 	String str = string::new_format("%s", url);
@@ -231,14 +231,14 @@ fn void! test_string_mailto()
 	assert(str == "mailto:John.Doe@example.com");
 }
 
-fn void! test_string_news()
+fn void test_string_news()
 {
 	Url url = {.scheme="news", .path="comp.infosystems.www.servers.unix"};
 	String str = string::new_format("%s", url);
 	assert(str == "news:comp.infosystems.www.servers.unix");
 }
 
-fn void! test_string_tel()
+fn void test_string_tel()
 {
 	Url url = {.scheme="tel", .path="+1-816-555-1212"};
 	String str = string::new_format("%s", url);
@@ -246,7 +246,7 @@ fn void! test_string_tel()
 	assert(str == "tel:+1-816-555-1212");
 }
 
-fn void! test_string_telnet()
+fn void test_string_telnet()
 {
 	Url url = {.scheme="telnet", .host="192.0.2.16", .port=80, .path="/"};
 	String str = string::new_format("%s", url);
@@ -254,7 +254,7 @@ fn void! test_string_telnet()
 	assert(str == "telnet://192.0.2.16:80/");
 }
 
-fn void! test_string_urn2()
+fn void test_string_urn2()
 {
 	Url url = {.scheme="urn", .path="oasis:names:specification:docbook:dtd:xml:4.1.2"};
 	String str = string::new_format("%s", url);
@@ -262,7 +262,7 @@ fn void! test_string_urn2()
 	assert(str == "urn:oasis:names:specification:docbook:dtd:xml:4.1.2");
 }
 
-fn void! test_string_empty()
+fn void test_string_empty()
 {
 	Url url = {};
 	String str = string::new_format("%s", url);
@@ -272,41 +272,41 @@ fn void! test_string_empty()
 
 // query_values
 
-fn void! test_query_values1()
+fn void test_query_values1()
 {
-	Url url = url::parse("foo://example.com:8042/over/there?name=ferret=ok#nose")!;
+	Url url = url::parse("foo://example.com:8042/over/there?name=ferret=ok#nose")!!;
 
 	UrlQueryValues vals = url.new_query_values();
 	defer vals.free();
 
 	assert(vals.len() == 1);
-	UrlQueryValueList l = vals["name"]!;
+	UrlQueryValueList l = vals["name"]!!;
 
 	assert(l.len() == 1);
 	assert(l[0] == "ferret=ok");
 }
 
-fn void! test_query_values2()
+fn void test_query_values2()
 {
-	Url url = url::parse("foo://example.com:8042/over/there?name=ferret&age=99&age=11#nose")!;
+	Url url = url::parse("foo://example.com:8042/over/there?name=ferret&age=99&age=11#nose")!!;
 
 	UrlQueryValues vals = url.new_query_values();
 	defer vals.free();
 	assert(vals.len() == 2);
 
-	UrlQueryValueList l_name = vals["name"]!;
+	UrlQueryValueList l_name = vals["name"]!!;
 	assert(l_name.len() == 1);
 	assert(l_name[0] == "ferret");
 
-	UrlQueryValueList l_age = vals["age"]!;
+	UrlQueryValueList l_age = vals["age"]!!;
 	assert(l_age.len() == 2);
 	assert(l_age[0] == "99");
 	assert(l_age[1] == "11");
 }
 
-fn void! test_query_values_withempty()
+fn void test_query_values_withempty()
 {
-	Url url = url::parse("foo://example.com:8042/over/there?name=ferret&&&age=99&age=11")!;
+	Url url = url::parse("foo://example.com:8042/over/there?name=ferret&&&age=99&age=11")!!;
 
 	UrlQueryValues vals = url.new_query_values();
 	defer vals.free();

test/unit/stdlib/os/env.c3

@@ -1,12 +1,12 @@
 module std::os::env @test;
 
- fn void! set_get_unset()
+ fn void set_get_unset()
  {
  	const NAME = "C3_TEST_ENVVAR";
  	const VALUE = "foobar";
 
  	env::set_var(NAME, VALUE);
- 	String v = env::get_var(NAME)!;
+ 	String v = env::get_var(NAME)!!;
  	assert(v == VALUE, "got %s; want %s", v, VALUE);
 
  	env::clear_var(NAME);

test/unit/stdlib/sort/quickselect.c3

@@ -8,7 +8,7 @@ struct TestCase @local
 	int want;
 }
 
-fn void! quickselect()
+fn void quickselect()
 {
     TestCase[] tcases = {
 		{

test/unit/stdlib/string.c3

@@ -1,6 +1,6 @@
 module string_test;
 
-fn void! test_clear() @test
+fn void test_clear() @test
 {
 	DString s = dstring::new_with_capacity(32);
 	assert(s.len() == 0);

test/unit/stdlib/string_to_float.c3

@@ -1,29 +1,29 @@
 module string_to_float_tests;
 
-fn void! test_float() @test
+fn void test_float() @test
 {
-	assert(String.to_float("1.2")! == 1.2f);
-	assert(String.to_float("10")! == 10f);
-	assert(String.to_float(".7647834")! == 0.7647834f);
-	assert(String.to_float("0.213232")! == 0.213232f);
-	assert(String.to_float("000001.487348")! == 000001.487348f);
-	assert(String.to_float("3.54500000")! == 3.54500000f);
-	assert(String.to_float("4.0")! == 4.0f);
-	assert(String.to_float("-23.545")! == -23.545f);
-	assert(String.to_float("1.5555555555555")! == 1.5555555555555f);
-	assert(String.to_float("1.5555555555556666")! == 1.5555555555556666f);
+	assert(String.to_float("1.2")!! == 1.2f);
+	assert(String.to_float("10")!! == 10f);
+	assert(String.to_float(".7647834")!! == 0.7647834f);
+	assert(String.to_float("0.213232")!! == 0.213232f);
+	assert(String.to_float("000001.487348")!! == 000001.487348f);
+	assert(String.to_float("3.54500000")!! == 3.54500000f);
+	assert(String.to_float("4.0")!! == 4.0f);
+	assert(String.to_float("-23.545")!! == -23.545f);
+	assert(String.to_float("1.5555555555555")!! == 1.5555555555555f);
+	assert(String.to_float("1.5555555555556666")!! == 1.5555555555556666f);
 }
 
-fn void! test_double() @test
+fn void test_double() @test
 {
-	assert(String.to_double("1.2")! == 1.2);
-	assert(String.to_double("10")! == 10);
-	assert(String.to_double(".7647834")! == 0.7647834);
-	assert(String.to_double("0.213232")! == 0.213232);
-	assert(String.to_double("000001.487348")! == 000001.487348);
-	assert(String.to_double("3.54500000")! == 3.54500000);
-	assert(String.to_double("4.0")! == 4.0);
-	assert(String.to_double("-23.545")! == -23.545);
-	assert(String.to_double("1.5555555555555")! == 1.5555555555555);
-	assert(String.to_double("1.5555555555556666")! == 1.5555555555556666);
+	assert(String.to_double("1.2")!! == 1.2);
+	assert(String.to_double("10")!! == 10);
+	assert(String.to_double(".7647834")!! == 0.7647834);
+	assert(String.to_double("0.213232")!! == 0.213232);
+	assert(String.to_double("000001.487348")!! == 000001.487348);
+	assert(String.to_double("3.54500000")!! == 3.54500000);
+	assert(String.to_double("4.0")!! == 4.0);
+	assert(String.to_double("-23.545")!! == -23.545);
+	assert(String.to_double("1.5555555555555")!! == 1.5555555555555);
+	assert(String.to_double("1.5555555555556666")!! == 1.5555555555556666);
 }

test/unit/stdlib/threads/mutex.c3

@@ -6,55 +6,55 @@ import std::os;
 const TEST_MAGNITUDE = 10;
 
 
-fn void! lock_control_test() @test
+fn void lock_control_test() @test
 {
     Mutex m;
-    m.init()!;
-    m.lock()!;
+    m.init()!!;
+    m.lock()!!;
     assert(@catch(m.lock()));
 }
 
-fn void! unlock_control_test() @test
+fn void unlock_control_test() @test
 {
     Mutex m;
-    m.init()!;
+    m.init()!!;
     assert(@catch(m.unlock()));
 }
 
-fn void! lock_with_double_unlock_test() @test
+fn void lock_with_double_unlock_test() @test
 {
     Mutex m;
-    m.init()!;
+    m.init()!!;
 
-    m.lock()!;
-    m.unlock()!;
+    m.lock()!!;
+    m.unlock()!!;
     assert(@catch(m.unlock()));
 }
 
 fn void! own_mutex(Mutex* m)
 {
-    m.lock()!!;
-    m.unlock()!!;
+    m.lock()!;
+    m.unlock()!;
 }
 
-fn void! ensure_owner_checks() @test
+fn void ensure_owner_checks() @test
 {
     Mutex m;
-    m.init()!;
+    m.init()!!;
 
     Thread[3 * TEST_MAGNITUDE] threads;
     
     foreach(&t : threads)
     {
-        t.create((ThreadFn)&own_mutex, &m)!;
+        t.create((ThreadFn)&own_mutex, &m)!!;
     }
 
     foreach(&t : threads)
     {
-        t.join()!;
+        t.join()!!;
     }
 
-    own_mutex(&m)!;
+    own_mutex(&m)!!;
 }
 
 struct ArgsWrapper1
@@ -77,11 +77,11 @@ fn void shared_mutex_decrement(ArgsWrapper1* args)
     args.m.unlock()!!;
 }
 
-fn void! shared_mutex() @test
+fn void shared_mutex() @test
 {
     Mutex m;
-    m.init()!;
-    m.lock()!;
+    m.init()!!;
+    m.lock()!!;
 
     ulong v;
 
@@ -95,24 +95,24 @@ fn void! shared_mutex() @test
     Thread[6 * TEST_MAGNITUDE] threads;
     for (int i = 0; i < threads.len / 2; i++)
     {
-        (&threads[i]).create((ThreadFn)&shared_mutex_increment, &args)!;
+        (&threads[i]).create((ThreadFn)&shared_mutex_increment, &args)!!;
     }
     for (int i = (threads.len / 2); i < threads.len; i++)
     {
-        (&threads[i]).create((ThreadFn)&shared_mutex_decrement, &args)!;
+        (&threads[i]).create((ThreadFn)&shared_mutex_decrement, &args)!!;
     }
 
-    m.unlock()!;
+    m.unlock()!!;
     foreach(&t : threads)
     {
-        t.join()!;
+        t.join()!!;
     }
     assert(v == 0);
 }
 
 // Recursive mutex
 
-fn void! acquire_recursively(RecursiveMutex* m)
+fn void acquire_recursively(RecursiveMutex* m)
 {
     // TODO: The recursive mutex functions can not directly be called via pointer
 
@@ -127,21 +127,21 @@ fn void! acquire_recursively(RecursiveMutex* m)
     }
 }
 
-fn void! test_recursive_mutex() @test
+fn void test_recursive_mutex() @test
 {
     RecursiveMutex m;
-    m.init()!;
+    m.init()!!;
     defer m.destroy()!!;
 
     Thread[3 * TEST_MAGNITUDE] threads;
     foreach(&t : threads)
     {
-        t.create((ThreadFn)&acquire_recursively, &m)!;
+        t.create((ThreadFn)&acquire_recursively, &m)!!;
     }
 
     foreach(&t : threads)
     {
-        t.join()!;
+        t.join()!!;
     }
 
     return acquire_recursively(&m);

test/unit/stdlib/threads/pool.c3

@@ -5,27 +5,27 @@ import std::thread::pool;
 
 def Pool = ThreadPool(<4>);
 
-fn void! init_destroy() @test
+fn void init_destroy() @test
 {
 	for (usz i = 0; i < 20; i++)
 	{
 		Pool pool;
-		pool.init()!;
-		pool.destroy()!;
+		pool.init()!!;
+		pool.destroy()!!;
 	}
 }
 
-fn void! push_destroy() @test
+fn void push_destroy() @test
 {
 	for FOO: (usz i = 0; i < 20; i++)
 	{
 		x = 0;
 		int y = 20;
 		Pool pool;
-		pool.init()!;
+		pool.init()!!;
 		defer pool.destroy()!!;
 		work_done.lock()!!;
-		pool.push(&do_work, &y)!;
+		pool.push(&do_work, &y)!!;
 		work_done.unlock()!!;
 		for (int j = 0; j < 1000; j++)
 		{
@@ -42,16 +42,16 @@ fn void! push_destroy() @test
 	}
 }
 
-fn void! push_stop() @test
+fn void push_stop() @test
 {
 	for (usz i = 0; i < 20; i++)
 	{
 		x = 0;
 		int y = 20;
 		Pool pool;
-		pool.init()!;
+		pool.init()!!;
 		work_done.lock()!!;
-		pool.push(&do_work, &y)!;
+		pool.push(&do_work, &y)!!;
 		work_done.unlock()!!;
 		pool.stop_and_destroy()!!;
 		assert(x == y, "%d: %d != %d", i, x, y);

test/unit/stdlib/threads/simple_thread.c3

@@ -3,26 +3,26 @@ import std::io;
 
 int a;
 
-fn void! testrun() @test
+fn void testrun() @test
 {
 	Thread t;
 	a = 0;
-	t.create(fn int(void* arg) { a++; return 0; }, null)!;
-	assert(t.join()! == 0);
+	t.create(fn int(void* arg) { a++; return 0; }, null)!!;
+	assert(t.join()!! == 0);
 	assert(a == 1);
 
-	t.create(fn int(void* arg) { return 10; }, null)!;
-	assert(t.join()! == 10);
+	t.create(fn int(void* arg) { return 10; }, null)!!;
+	assert(t.join()!! == 10);
 }
 
 
 Mutex m_global;
 
-fn void! testrun_mutex() @test
+fn void testrun_mutex() @test
 {
 	Thread[20] ts;
 	a = 0;
-	m_global.init()!;
+	m_global.init()!!;
 	foreach (&t : ts)
 	{
 		t.create(fn int(void* arg) {
@@ -38,39 +38,39 @@ fn void! testrun_mutex() @test
 			thread::sleep_ms(5);
 			a++;
 		    return 0;
-		}, null)!;
+		}, null)!!;
 	}
 	foreach (&t : ts)
     {
-        assert(t.join()! == 0);
+        assert(t.join()!! == 0);
     }
 	assert(a == ts.len);
-	m_global.destroy()!;
+	m_global.destroy()!!;
 }
 
-fn void! testrun_mutex_try() @test
+fn void testrun_mutex_try() @test
 {
 	Mutex m;
-	m.init()!;
-	m.lock()!;
+	m.init()!!;
+	m.lock()!!;
 	assert(m.try_lock() == false);
-	m.unlock()!;
+	m.unlock()!!;
 	assert(m.try_lock() == true);
-	m.unlock()!;
+	m.unlock()!!;
 }
 
-fn void! testrun_mutex_timeout() @test
+fn void testrun_mutex_timeout() @test
 {
 	TimedMutex m;
-	m.init()!;
-	m.lock()!;
+	m.init()!!;
+	m.lock()!!;
 	if (try m.lock_timeout(20))
 	{
 		unreachable("lock_timeout should fail");
 	}
-	m.unlock()!;
-	m.lock_timeout(20)!;
-	m.unlock()!;
+	m.unlock()!!;
+	m.lock_timeout(20)!!;
+	m.unlock()!!;
 }
 
 int x_once = 100;
@@ -80,7 +80,7 @@ fn void call_once()
 	x_once += 100;
 }
 
-fn void! testrun_once() @test
+fn void testrun_once() @test
 {
 	OnceFlag once;
 	once.call(&call_once);

test/unit/stdlib/time/time.c3

@@ -2,28 +2,28 @@ module nanoduration_test @test;
 import std::io;
 import std::time;
 
-fn void! to_format()
+fn void to_format()
 {
 	char[32] buffer;
 	char[] buf;
-	buf = io::bprintf(buffer[..], "%s", (NanoDuration)123)!;
+	buf = io::bprintf(buffer[..], "%s", (NanoDuration)123)!!;
 	assert(buf == "123ns", "got %s; want 123ns", buf);
 
-	buf = io::bprintf(buffer[..], "%s", (NanoDuration)123_000)!;
+	buf = io::bprintf(buffer[..], "%s", (NanoDuration)123_000)!!;
 	assert(buf == "123µs", "got %s; want 123µs", buf);
 
-	buf = io::bprintf(buffer[..], "%s", (NanoDuration)123_000_000)!;
+	buf = io::bprintf(buffer[..], "%s", (NanoDuration)123_000_000)!!;
 	assert(buf == "123ms", "got %s; want 123ms", buf);
 
-	buf = io::bprintf(buffer[..], "%s", (NanoDuration)13_000_000_000)!;
+	buf = io::bprintf(buffer[..], "%s", (NanoDuration)13_000_000_000)!!;
 	assert(buf == "13s", "got %s; want 13s", buf);
 
-	buf = io::bprintf(buffer[..], "%s", (NanoDuration)123_000_000_000)!;
+	buf = io::bprintf(buffer[..], "%s", (NanoDuration)123_000_000_000)!!;
 	assert(buf == "2m3s", "got %s; want 2m3s", buf);
 
-	buf = io::bprintf(buffer[..], "%s", (NanoDuration)12345_000_000_000)!;
+	buf = io::bprintf(buffer[..], "%s", (NanoDuration)12345_000_000_000)!!;
 	assert(buf == "3h25m45s", "got %s; want 3h25m45s", buf);
 
-	buf = io::bprintf(buffer[..], "%s", (NanoDuration)12_100_000_000)!;
+	buf = io::bprintf(buffer[..], "%s", (NanoDuration)12_100_000_000)!!;
 	assert(buf == "12.1s", "got %s; want 12.1s", buf);
 }