def test_while_invalid():
with pytest.raises(TypeError):
expr = pt.While()
with pytest.raises(pt.TealCompileError):
expr = pt.While(pt.Int(2))
expr.type_of()
with pytest.raises(pt.TealCompileError):
expr = pt.While(pt.Int(2))
expr.__teal__(options)
with pytest.raises(pt.TealCompileError):
expr = pt.While(pt.Int(2))
expr.type_of()
with pytest.raises(pt.TealCompileError):
expr = pt.While(pt.Int(2))
expr.__str__()
with pytest.raises(pt.TealTypeError):
expr = pt.While(pt.Int(2)).Do(pt.Int(2))
with pytest.raises(pt.TealTypeError):
expr = pt.While(pt.Int(2)).Do(pt.Pop(pt.Int(2)), pt.Int(2))
with pytest.raises(pt.TealCompileError):
expr = pt.While(pt.Int(0)).Do(pt.Continue()).Do(pt.Continue())
expr.__str__()
def test_while_break():
i = pt.ScratchVar()
i.store(pt.Int(0))
items = [
i.load() < pt.Int(2),
i.store(i.load() + pt.Int(1)),
pt.If(i.load() == pt.Int(1), pt.Break()),
]
expr = pt.While(items[0]).Do(pt.Seq(items[1], items[2]))
assert expr.type_of() == pt.TealType.none
assert not expr.has_return()
options.enterLoop()
expected, condEnd = items[0].__teal__(options)
do, doEnd = pt.Seq([items[1], items[2]]).__teal__(options)
expectedBranch = pt.TealConditionalBlock([])
end = pt.TealSimpleBlock([])
expectedBranch.setTrueBlock(do)
expectedBranch.setFalseBlock(end)
condEnd.setNextBlock(expectedBranch)
doEnd.setNextBlock(expected)
breakBlocks, _ = options.exitLoop()
for block in breakBlocks:
block.setNextBlock(end)
actual, _ = expr.__teal__(options)
assert actual == expected
def test_while_compiles():
i = pt.ScratchVar()
expr = pt.While(pt.Int(2)).Do(pt.Seq([i.store(pt.Int(0))]))
assert expr.type_of() == pt.TealType.none
assert not expr.has_return()
expr.__teal__(options)
def test_while():
i = pt.ScratchVar()
i.store(pt.Int(0))
items = [i.load() < pt.Int(2), [i.store(i.load() + pt.Int(1))]]
expr = pt.While(items[0]).Do(pt.Seq(items[1]))
assert expr.type_of() == pt.TealType.none
assert not expr.has_return()
expected, condEnd = items[0].__teal__(options)
do, doEnd = pt.Seq(items[1]).__teal__(options)
expectedBranch = pt.TealConditionalBlock([])
end = pt.TealSimpleBlock([])
expectedBranch.setTrueBlock(do)
expectedBranch.setFalseBlock(end)
condEnd.setNextBlock(expectedBranch)
doEnd.setNextBlock(expected)
actual, _ = expr.__teal__(options)
assert actual == expected
def test_continue_break():
expr = pt.While(pt.Int(0)).Do(
pt.Seq([pt.If(pt.Int(1), pt.Break(), pt.Continue())]))
assert expr.type_of() == pt.TealType.none
assert not expr.has_return()
expr.__teal__(options)
def test_nested_whiles_compile():
i = pt.ScratchVar()
expr = pt.While(pt.Int(2)).Do(
pt.Seq([pt.While(pt.Int(2)).Do(pt.Seq([i.store(pt.Int(0))]))]))
assert expr.type_of() == pt.TealType.none
assert not expr.has_return()