def test_interpret_number():
term = SyntaxNumber(int32(100))
frame_stack = init_test_frame_stack(init_term_block(term),
MachineExpressionStack([]))
interpret_term(frame_stack)
assert frame_stack == init_test_frame_stack(
init_term_block(term),
MachineExpressionStack([MachineNumber(int32(100))]),
term_index=1,
)
def test_interpret_comment():
term = SyntaxComment("something")
expression_stack = MachineExpressionStack([MachineNumber(int32(10))])
frame_stack = init_test_frame_stack(init_term_block(term),
expression_stack)
interpret_term(frame_stack)
assert frame_stack == init_test_frame_stack(
init_term_block(term),
MachineExpressionStack([MachineNumber(int32(10))]),
term_index=1,
)
def test_interpret_identifier_call():
term = SyntaxIdentifier(sqrt.name)
expression_stack = MachineExpressionStack([MachineNumber(int32(16))])
frame_stack = init_test_frame_stack(init_term_block(term),
expression_stack)
interpret_term(frame_stack)
assert frame_stack == init_test_frame_stack(
init_term_block(term),
MachineExpressionStack([MachineNumber(int32(4))]),
term_index=1,
)
def test_interpret_identifier_value():
term = SyntaxIdentifier(PI.name)
expression_stack = MachineExpressionStack([])
frame_stack = init_test_frame_stack(init_term_block(term),
expression_stack)
interpret_term(frame_stack)
assert frame_stack == init_test_frame_stack(
init_term_block(term),
MachineExpressionStack([PI.value]),
term_index=1,
)
def test_interpret_expression_enter():
statement = SyntaxExpression([SyntaxNumber(int32(100))])
frame_stack = init_test_frame_stack(
init_statement_block(statement),
MachineExpressionStack([]),
)
interpret_statement(frame_stack)
assert frame_stack == init_test_frame_stack(
init_statement_block(statement),
MachineExpressionStack([MachineNumber(int32(100))]),
term_index=1,
)
def test_interpret_block_enter():
block = SyntaxBlock(
[SyntaxExpression([SyntaxNumber(int32(4))])]
)
frame_stack = init_test_frame_stack(
block, MachineExpressionStack([])
)
interpret_block(frame_stack)
assert frame_stack == init_test_frame_stack(
block,
MachineExpressionStack([MachineNumber(int32(4))]),
term_index=1,
)
def test_interpret_assignment_2_exit():
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 test_interpret_block_exit():
block = SyntaxBlock(
[SyntaxExpression([SyntaxNumber(int32(4))])]
)
frame_stack = init_test_frame_stack(
block, MachineExpressionStack([]), statement_index=1
)
interpret_block(frame_stack)
assert frame_stack == MachineFrameStack([])
def test_interpret_block():
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_call_push_frame():
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_interpret_assignment_1_exit():
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_assignment_1_enter():
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)
assert len(frame_stack) == 2
assert (frame_stack.frames[1].instruction_pointer is
frame_stack.frames[0].instruction_pointer)
assert (frame_stack.frames[1].environment is
frame_stack.frames[0].environment)
assert (frame_stack.current.expression_stack == MachineExpressionStack(
[MachineNumber(int32(3))]))
def test_interpret_method_definition_exit():
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)
}