def execute(self, operands: List[Expression], frame: Frame,
gui_holder: Holder):
verify_min_callable_length(self, 2, len(operands))
params = operands[0]
if isinstance(params, Symbol):
verify_exact_callable_length(self, 2, len(operands))
frame.assign(
params,
evaluate(operands[1], frame,
gui_holder.expression.children[2]))
return params
elif isinstance(params, Pair):
name = params.first
operands[0] = params.rest
if (not isinstance(name, Symbol)):
raise OperandDeduceError(''.join(
['Expected a Symbol, not ', '{}'.format(name), '.']))
frame.assign(
name,
Lambda().execute(operands, frame, gui_holder, name.value))
return name
else:
raise OperandDeduceError(''.join([
'Expected a Pair, not ', '{}'.format(params),
', as the first operand of define-macro.'
]))
def execute(self, operands: List[Expression], frame: Frame, gui_holder: Holder):
verify_exact_callable_length(self, 2, len(operands))
name = operands[0]
if not isinstance(name, Symbol):
raise OperandDeduceError(f"Expected a Symbol, not {name}, as the first operand of set!")
frame.mutate(name, evaluate(operands[1], frame, gui_holder.expression.children[2]))
return Undefined
def execute(self, operands: List[Expression], frame: Frame, gui_holder: Holder):
verify_min_callable_length(self, 2, len(operands))
params = operands[0]
if not isinstance(params, Pair):
raise OperandDeduceError(f"Expected a Pair, not {params}, as the first operand of define-macro.")
name = params.first
operands[0] = params.rest
if not isinstance(name, Symbol):
raise OperandDeduceError(f"Expected a Symbol, not {name}.")
frame.assign(name, Macro().execute(operands, frame, gui_holder, name.value))
return name
def build_global_frame():
import primitives
primitives.load_primitives()
frame = Frame("builtins")
for k, v in defdict.items():
frame.assign(Symbol(k), v())
# moved to the parser
# frame.assign(Symbol("nil"), Nil)
# frame.assign(Symbol("#t"), SingletonTrue)
# frame.assign(Symbol("#f"), SingletonFalse)
for name in [
"acos", "acosh", "asin", "asinh", "atan", "atanh", "ceil",
"copysign", "cos", "cosh", "degrees", "floor", "log", "log10",
"log1p", "log2", "radians", "sin", "sinh", "sqrt", "tan", "tanh",
"trunc"
]:
frame.assign(Symbol(name), MathProcedure(getattr(math, name), name))
with open("editor/builtins.scm") as file:
execution.string_exec([" ".join(file.readlines())],
lambda *x, **y: None, False, frame)
return Frame("Global", frame)
def execute(self,
operands: List[Expression],
frame: Frame,
gui_holder: Holder,
eval_operands=True):
new_frame = Frame(self.name,
self.frame if self.lexically_scoped else frame)
if eval_operands and self.evaluates_operands:
operands = evaluate_all(operands, frame,
gui_holder.expression.children[1:])
if self.var_param:
verify_min_callable_length(self, len(self.params), len(operands))
else:
verify_exact_callable_length(self, len(self.params), len(operands))
if len(self.body) > 1:
body = [Pair(Symbol("begin"), make_list(self.body))]
else:
body = self.body
for param, value in zip(self.params, operands):
new_frame.assign(param, value)
if self.var_param:
new_frame.assign(self.var_param,
make_list(operands[len(self.params):]))
out = None
gui_holder.expression.set_entries([
VisualExpression(expr, gui_holder.expression.display_value)
for expr in body
])
gui_holder.apply()
for i, expression in enumerate(body):
out = evaluate(expression,
new_frame,
gui_holder.expression.children[i],
self.evaluates_operands and i == len(body) - 1,
log_stack=len(self.body) == 1)
new_frame.assign(return_symbol, out)
if not self.evaluates_operands:
gui_holder.expression.set_entries(
[VisualExpression(out, gui_holder.expression.display_value)])
out = evaluate(out, frame, gui_holder.expression.children[i], True)
return out
def execute(self, operands: List[Expression], frame: Frame, gui_holder: Holder):
verify_min_callable_length(self, 2, len(operands))
bindings = operands[0]
if not isinstance(bindings, Pair) and bindings is not Nil:
raise OperandDeduceError(f"Expected first argument of let to be a Pair, not {bindings}.")
new_frame = Frame("anonymous let", frame)
bindings_holder = gui_holder.expression.children[1]
bindings = pair_to_list(bindings)
for i, binding in enumerate(bindings):
if not isinstance(binding, Pair):
raise OperandDeduceError(f"Expected binding to be a Pair, not {binding}.")
binding_holder = bindings_holder.expression.children[i]
binding = pair_to_list(binding)
if len(binding) != 2:
raise OperandDeduceError(f"Expected binding to be of length 2, not {len(binding)}.")
name, expr = binding
if not isinstance(name, Symbol):
raise OperandDeduceError(f"Expected first element of binding to be a Symbol, not {name}.")
new_frame.assign(name, evaluate(expr, frame, binding_holder.expression.children[1]))
value = None
for i, (operand, holder) in enumerate(zip(operands[1:], gui_holder.expression.children[2:])):
value = evaluate(operand, new_frame, holder, i == len(operands) - 2)
new_frame.assign(return_symbol, value)
return value
def build_global_frame():
import primitives
primitives.load_primitives()
frame = Frame('builtins')
for (k, v) in defdict.items():
frame.assign(Symbol(k), v())
for name in [
'acos', 'acosh', 'asin', 'asinh', 'atan', 'atanh', 'ceil',
'copysign', 'cos', 'cosh', 'degrees', 'floor', 'log', 'log10',
'log1p', 'log2', 'radians', 'sin', 'sinh', 'sqrt', 'tan', 'tanh',
'trunc'
]:
frame.assign(Symbol(name), MathProcedure(getattr(math, name), name))
with open('editor/builtins.scm') as file:
execution.string_exec([' '.join(file.readlines())],
(lambda *x, **y: None), False, frame)
return Frame('Global', frame)
def execute(self, operands: List[Expression], frame: Frame,
gui_holder: Holder):
verify_min_callable_length(self, 2, len(operands))
bindings = operands[0]
if ((not isinstance(bindings, Pair)) and (bindings is not Nil)):
raise OperandDeduceError(''.join([
'Expected first argument of let to be a Pair, not ',
'{}'.format(bindings), '.'
]))
new_frame = Frame('anonymous let', frame)
gui_holder.expression.children[1].link_visual(
VisualExpression(bindings))
bindings_holder = gui_holder.expression.children[1]
bindings = pair_to_list(bindings)
for (i, binding) in enumerate(bindings):
if (not isinstance(binding, Pair)):
raise OperandDeduceError(''.join([
'Expected binding to be a Pair, not ',
'{}'.format(binding), '.'
]))
binding_holder = bindings_holder.expression.children[i]
binding_holder.link_visual(VisualExpression(binding))
binding = pair_to_list(binding)
if (len(binding) != 2):
raise OperandDeduceError(''.join([
'Expected binding to be of length 2, not ',
'{}'.format(len(binding)), '.'
]))
(name, expr) = binding
if (not isinstance(name, Symbol)):
raise OperandDeduceError(''.join([
'Expected first element of binding to be a Symbol, not ',
'{}'.format(name), '.'
]))
new_frame.assign(
name,
evaluate(expr, frame, binding_holder.expression.children[1]))
value = None
for (i, (operand, holder)) in enumerate(
zip(operands[1:], gui_holder.expression.children[2:])):
value = evaluate(operand, new_frame, holder,
(i == (len(operands) - 2)))
new_frame.assign(return_symbol, value)
return value
