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 call_test(binding, args, results):
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():
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_call_delegate_to_host_call():
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 parse_one_term(term: GroupTerm) -> SyntaxTerm:
if isinstance(term, GroupNumber):
return SyntaxNumber(term.value)
elif isinstance(term, GroupIdentifier):
return SyntaxIdentifier(term.name)
elif isinstance(term, GroupComment):
return SyntaxComment(term.text)
elif isinstance(term, Group):
return parse_statements_block(term)
else:
assert False, term
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_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)
}
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 params_parse():
yield "0x123xiw", SyntaxBlock(
[SyntaxExpression([SyntaxNumber(int32(0x123))])])
yield "abc", SyntaxBlock([SyntaxExpression([SyntaxIdentifier("abc")])])
yield "a-b-c", SyntaxBlock([SyntaxExpression([SyntaxIdentifier("a-b-c")])])
yield "123 abc ", SyntaxBlock([
SyntaxExpression([
SyntaxNumber(int32(123)),
SyntaxIdentifier("abc"),
])
])
yield "123 abc -- de", SyntaxBlock([
SyntaxExpression([
SyntaxNumber(int32(123)),
SyntaxIdentifier("abc"),
SyntaxComment(" de"),
])
])
yield "abc def = 10 20", SyntaxBlock([
SyntaxAssignment(
terms=[
SyntaxNumber(int32(10)),
SyntaxNumber(int32(20)),
],
bindings=[
SyntaxIdentifier("abc"),
SyntaxIdentifier("def"),
],
)
])
yield "123 abc\n456 def", SyntaxBlock([
SyntaxExpression([
SyntaxNumber(int32(123)),
SyntaxIdentifier("abc"),
]),
SyntaxExpression([
SyntaxNumber(int32(456)),
SyntaxIdentifier("def"),
]),
])
def parse_one_statement(terms: List[GroupTerm], ) -> SyntaxStatement:
bindings: List[SyntaxIdentifier] = []
for term in terms:
if isinstance(term, GroupIdentifier):
if term.name == "=":
return SyntaxAssignment(
terms=parse_terms(terms[len(bindings) + 1:]),
bindings=bindings,
)
elif term.name == "/=":
assert len(bindings) == 1
return SyntaxMethodDefinition(
binding=bindings[0],
definition=parse_one_statement(terms[2:]),
)
else:
bindings.append(SyntaxIdentifier(term.name))
else:
break
return SyntaxExpression(parse_terms(terms))
def params_statements():
# Expression
yield Group([GroupLine([GroupIdentifier("abc")])
]), SyntaxBlock([SyntaxExpression([SyntaxIdentifier("abc")])])
# Comment in group
yield Group([
GroupLine([
GroupNumber(int32(0)),
GroupComment(" txt"),
Group([GroupLine([GroupNumber(int32(1))])]),
])
]), SyntaxBlock([
SyntaxExpression([
SyntaxNumber(int32(0)),
SyntaxComment(" txt"),
SyntaxBlock([SyntaxExpression([SyntaxNumber(int32(1))])]),
])
])
# Simple assignment
yield Group([
GroupLine([
GroupIdentifier("x"),
GroupIdentifier("="),
GroupIdentifier("y"),
])
]), SyntaxBlock([
SyntaxAssignment(
terms=[SyntaxIdentifier("y")],
bindings=[SyntaxIdentifier("x")],
)
])
# Nested assignment
yield Group([
GroupLine([
GroupIdentifier("a"),
GroupIdentifier("b"),
GroupIdentifier("="),
GroupIdentifier("c"),
Group([
GroupLine([
GroupIdentifier("d"),
GroupIdentifier("="),
GroupIdentifier("e"),
]),
GroupLine([
GroupIdentifier("f"),
GroupIdentifier("g"),
]),
]),
])
]), SyntaxBlock([
SyntaxAssignment(
terms=[
SyntaxIdentifier("c"),
SyntaxBlock([
SyntaxAssignment(
terms=[SyntaxIdentifier("e")],
bindings=[SyntaxIdentifier("d")],
),
SyntaxExpression([
SyntaxIdentifier("f"),
SyntaxIdentifier("g"),
]),
]),
],
bindings=[
SyntaxIdentifier("a"),
SyntaxIdentifier("b"),
],
)
])
# Simple method definition
yield Group([
GroupLine([
GroupIdentifier("a1"),
GroupIdentifier("/="),
GroupIdentifier("b2"),
])
]), SyntaxBlock([
SyntaxMethodDefinition(
binding=SyntaxIdentifier("a1"),
definition=SyntaxExpression([SyntaxIdentifier("b2")]),
)
])
# Block method definition
yield Group([
GroupLine([
GroupIdentifier("add"),
GroupIdentifier("/="),
Group([
GroupLine([
GroupIdentifier("x"),
GroupIdentifier("y"),
GroupIdentifier("+"),
])
]),
])
]), SyntaxBlock([
SyntaxMethodDefinition(
binding=SyntaxIdentifier("add"),
definition=SyntaxExpression([
SyntaxBlock([
SyntaxExpression([
SyntaxIdentifier("x"),
SyntaxIdentifier("y"),
SyntaxIdentifier("+"),
])
])
]),
)
])