def test_call_push_frame() -> None:
call = GuestCall(
definition_environment=test_environment(),
definition_block=SyntaxBlock(
[SyntaxExpression([SyntaxIdentifier("g")])]),
)
block = SyntaxBlock([SyntaxExpression([SyntaxIdentifier("f")])])
frame_stack = init_test_frame_stack(
block,
MachineExpressionStack([MachineNumber(int32(9))]),
)
call(frame_stack)
assert len(frame_stack) == 2
assert (frame_stack.frames[0] == init_test_frame_stack(
block,
MachineExpressionStack([MachineNumber(int32(9))]),
term_index=1,
).frames[0])
assert frame_stack.frames[1] == MachineFrame(
instruction_pointer=MachineInstructionPointer(
block=call.definition_block,
statement_index=0,
term_index=0,
),
environment=test_environment().extend(),
expression_stack=MachineExpressionStack([MachineNumber(int32(9))]),
)
def test_call_delegate_to_host_call() -> None:
call = GuestCall(
definition_environment=test_environment(),
definition_block=SyntaxBlock(
[SyntaxExpression([SyntaxIdentifier("sqrt")])]),
)
block = SyntaxBlock([SyntaxExpression([SyntaxIdentifier("f")])])
expression_stack = MachineExpressionStack([MachineNumber(int32(16))])
environment = test_environment({"f": call})
interpret(block, expression_stack, environment)
assert expression_stack == MachineExpressionStack(
[MachineNumber(int32(4))])
def test_interpret_block() -> None:
term = init_term_block(SyntaxNumber(int32(2)))
expression_stack = MachineExpressionStack(
[MachineNumber(int32(10))]
)
frame_stack = init_test_frame_stack(
init_term_block(term), expression_stack
)
interpret_term(frame_stack)
assert len(frame_stack) == 2
assert (
frame_stack.frames[0]
== init_test_frame_stack(
init_term_block(term),
MachineExpressionStack(
[MachineNumber(int32(10))]
),
term_index=1,
).frames[0]
)
assert frame_stack.frames[1] == MachineFrame(
instruction_pointer=MachineInstructionPointer(
block=term, statement_index=0, term_index=0
),
environment=test_environment().extend(),
expression_stack=MachineExpressionStack(
[MachineNumber(int32(10))]
),
)
def test_interpret_assignment_2_exit() -> None:
statement = SyntaxAssignment(
terms=[
SyntaxNumber(int32(300)),
SyntaxNumber(int32(400)),
],
bindings=[
SyntaxIdentifier("abc"),
SyntaxIdentifier("def"),
],
)
frame_stack = init_test_frame_stack(
init_statement_block(statement),
MachineExpressionStack([]),
)
interpret_statement(frame_stack)
interpret_statement(frame_stack)
interpret_statement(frame_stack)
assert frame_stack == init_frame_stack(
init_statement_block(statement),
MachineExpressionStack([]),
test_environment({
"abc": MachineNumber(int32(300)),
"def": MachineNumber(int32(400)),
}),
statement_index=1,
)
def call_test(
binding: MachineBinding,
args: list[MachineValue],
results: list[MachineValue],
) -> None:
term = SyntaxIdentifier(binding.name)
block = SyntaxBlock([SyntaxExpression([term])])
expression_stack = MachineExpressionStack(args)
environment = test_environment()
interpret(block, expression_stack, environment)
assert expression_stack == MachineExpressionStack(results)
def test_call_generate_values() -> None:
call = GuestCall(
definition_environment=test_environment(),
definition_block=SyntaxBlock([
SyntaxExpression([
SyntaxNumber(int32(2)),
SyntaxNumber(int32(3)),
SyntaxNumber(int32(4)),
])
]),
)
block = SyntaxBlock([SyntaxExpression([SyntaxIdentifier("seq")])])
expression_stack = MachineExpressionStack([MachineNumber(int32(1))])
environment = test_environment({"seq": call})
interpret(block, expression_stack, environment)
assert expression_stack == MachineExpressionStack([
MachineNumber(int32(1)),
MachineNumber(int32(2)),
MachineNumber(int32(3)),
MachineNumber(int32(4)),
])
def test_interpret_assignment_1_exit() -> None:
statement = SyntaxAssignment(
terms=[SyntaxNumber(int32(3))],
bindings=[SyntaxIdentifier("x")],
)
frame_stack = init_test_frame_stack(
init_statement_block(statement),
MachineExpressionStack([MachineNumber(int32(4))]),
)
interpret_statement(frame_stack)
interpret_statement(frame_stack)
assert frame_stack == init_frame_stack(
init_statement_block(statement),
MachineExpressionStack([MachineNumber(int32(4))]),
test_environment({"x": MachineNumber(int32(3))}),
statement_index=1,
)
def test_interpret_method_definition_exit() -> None:
statement = SyntaxMethodDefinition(
binding=SyntaxIdentifier("f"),
definition=SyntaxExpression([SyntaxIdentifier("sqrt")]),
)
frame_stack = init_test_frame_stack(
init_statement_block(statement),
MachineExpressionStack([]),
)
interpret_statement(frame_stack)
environment = frame_stack.current.environment
assert frame_stack == init_frame_stack(
init_statement_block(statement),
MachineExpressionStack([]),
environment,
statement_index=1,
)
assert environment.base == test_environment().base
assert environment.bindings == {
"f": GuestCall(environment, statement.definition_block)
}
def test_interpret() -> None:
block = SyntaxBlock(
[
SyntaxExpression(
[
SyntaxNumber(int32(1)),
SyntaxNumber(int32(2)),
SyntaxNumber(int32(3)),
]
)
]
)
expression_stack = MachineExpressionStack([])
environment = test_environment()
interpret(block, expression_stack, environment)
assert expression_stack == MachineExpressionStack(
[
MachineNumber(int32(1)),
MachineNumber(int32(2)),
MachineNumber(int32(3)),
]
)