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Commitec232cd

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Add TinyEngine.get_functions and get_function_signatures() so that repl does not to peek into private vars; refactor repl to pull meta-command handling out to its own function (to keep down the size of the repl loop)
1 parent0bfab4a commitec232cd

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2 files changed

+109
-88
lines changed

2 files changed

+109
-88
lines changed

‎examples/tiny/tiny_engine.py‎

Lines changed: 6 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -113,6 +113,12 @@ def register_function_signature(
113113
"""
114114
self._function_sigs[name]= (return_type,params)
115115

116+
defget_functions(self)->dict[str,TinyNode]:
117+
return {**self._functions}
118+
119+
defget_function_signatures(self)->dict[str,tuple[str,list[tuple[str,str]]]]:
120+
return {**self._function_sigs}
121+
116122
# ----- Frame management -----
117123
@property
118124
defcurrent_frame(self)->TinyFrame:

‎examples/tiny/tiny_repl.py‎

Lines changed: 103 additions & 88 deletions
Original file line numberDiff line numberDiff line change
@@ -159,6 +159,106 @@ def _try_execute(engine: TinyEngine, source: str) -> None:
159159
engine.output_text()
160160
print()
161161

162+
defhandle_meta_command(engine:TinyEngine,cmd:str,debug:list[bool])->bool:
163+
# normalize to lowercase, and collapse whitespace
164+
lower=" ".join(cmd.lower().split())
165+
line=cmd.strip()
166+
167+
iflower=="help":
168+
print(f"TINY REPL v{TINY_VERSION}")
169+
print("Commands:")
170+
print(" help - list commands and descriptions")
171+
print(" quit - exit the REPL")
172+
print(" import <file> - load functions from a .tiny file")
173+
print(" reimport <file> - load functions, overwriting existing")
174+
print(" clear vars - clear current local variables")
175+
print(" clear all - reset engine state (all vars, funcs)")
176+
print(" list - list variables and functions")
177+
print(" list vars - list only current variables")
178+
print(" list functions - list defined function names")
179+
print(" debug on - show full Python tracebacks")
180+
print(" debug off - concise errors; hide tracebacks")
181+
returnTrue
182+
183+
iflower=="quit":
184+
returnTrue
185+
186+
iflowerin ("list","list vars","list functions"):
187+
# Listing helpers
188+
def_print_vars()->None:
189+
frame=engine.current_frame
190+
vars_dict=getattr(frame,"_vars", {})# type: ignore[attr-defined]
191+
names=sorted(vars_dict.keys())
192+
ifnotnames:
193+
print("[variables] (none)")
194+
else:
195+
print("[variables]")
196+
fornameinnames:
197+
dtype,value=vars_dict[name]
198+
print(f"{name} ={value!r} :{dtype}")
199+
200+
def_print_functions()->None:
201+
funcs=engine.get_functions()
202+
names=sorted(funcs.keys())
203+
ifnotnames:
204+
print("[functions] (none)")
205+
else:
206+
print("[functions]")
207+
sigs=engine.get_function_signatures()
208+
fornameinnames:
209+
fn_ret_type,fn_params=sigs[name]
210+
print(f"{fn_ret_type}{name}({', '.join(' '.join(p)forpinfn_params)})")
211+
212+
iflowerin ("list","list vars"):
213+
_print_vars()
214+
iflowerin ("list","list functions"):
215+
_print_functions()
216+
returnTrue
217+
218+
# Debug mode commands
219+
iflower=="debug on":
220+
debug[0]=True
221+
print("[debug: on]")
222+
returnTrue
223+
iflower=="debug off":
224+
debug[0]=False
225+
print("[debug: off]")
226+
returnTrue
227+
228+
# import commands
229+
ifcmd.startswith("import "):
230+
try:
231+
_,rest=line.split(None,1)
232+
exceptValueError:
233+
print("usage: import <file>")
234+
returnTrue
235+
_load_functions_from_file(engine,rest.strip(),overwrite=False,debug=debug[0])
236+
returnTrue
237+
ifline.lower().startswith("reimport "):
238+
try:
239+
_,rest=line.split(None,1)
240+
exceptValueError:
241+
print("usage: reimport <file>")
242+
returnTrue
243+
_load_functions_from_file(engine,rest.strip(),overwrite=True,debug=debug[0])
244+
returnTrue
245+
246+
# clear/reset commands
247+
iflower=="clear vars":
248+
ifengine._frames:# type: ignore[attr-defined]
249+
engine._frames[-1]=TinyFrame()# type: ignore[attr-defined]
250+
else:
251+
engine.push_frame()
252+
print("[locals cleared]")
253+
returnTrue
254+
255+
iflower=="clear all":
256+
engine=TinyEngine()
257+
engine.push_frame()
258+
print("[engine reset]")
259+
returnTrue
260+
261+
returnFalse
162262

163263
defrepl()->int:
164264
print(f"TINY REPL v{TINY_VERSION} — enter statements on one or more lines. Ctrl-C to cancel current input; `quit` to exit.")
@@ -187,99 +287,14 @@ def repl() -> int:
187287
# If starting fresh, allow immediate REPL commands
188288
ifnotbuffer_lines:
189289
cmd=line.strip()
190-
lower=cmd.lower()
191290
ifnotcmd:
192291
# ignore empty input
193292
continue
194-
iflower=="help":
195-
print(f"TINY REPL v{TINY_VERSION}")
196-
print("Commands:")
197-
print(" help - list commands and descriptions")
198-
print(" quit - exit the REPL")
199-
print(" import <file> - load functions from a .tiny file")
200-
print(" reimport <file> - load functions, overwriting existing")
201-
print(" clear vars - clear current local variables")
202-
print(" clear all - reset engine state (all vars, funcs)")
203-
print(" list - list variables and functions")
204-
print(" list vars - list only current variables")
205-
print(" list functions - list defined function names")
206-
print(" debug on - show full Python tracebacks")
207-
print(" debug off - concise errors; hide tracebacks")
208-
continue
209-
iflower=="quit":
210-
break
211-
iflower=="list"orlower=="list vars"orlower=="list functions":
212-
# Listing helpers
213-
def_print_vars()->None:
214-
frame=engine.current_frame
215-
vars_dict=getattr(frame,"_vars", {})# type: ignore[attr-defined]
216-
names=sorted(vars_dict.keys())
217-
ifnotnames:
218-
print("[variables] (none)")
219-
else:
220-
print("[variables]")
221-
fornameinnames:
222-
dtype,value=vars_dict[name]
223-
print(f"{name} ={value!r} :{dtype}")
224-
225-
def_print_functions()->None:
226-
funcs=getattr(engine,"_functions", {})# type: ignore[attr-defined]
227-
names=sorted(funcs.keys())
228-
ifnotnames:
229-
print("[functions] (none)")
230-
else:
231-
print("[functions]")
232-
fornameinnames:
233-
print(f"{name}")
234-
235-
iflower=="list":
236-
_print_vars()
237-
_print_functions()
238-
continue
239-
iflower=="list vars":
240-
_print_vars()
241-
continue
242-
iflower=="list functions":
243-
_print_functions()
244-
continue
245293

246-
# Debug mode commands
247-
iflower=="debug on":
248-
debug=True
249-
print("[debug: on]")
250-
continue
251-
iflower=="debug off":
252-
debug=False
253-
print("[debug: off]")
254-
continue
294+
ifhandle_meta_command(engine,cmd, [debug]):
295+
ifcmd.strip().lower()=="quit":
296+
break
255297

256-
ifline.lower().startswith("import "):
257-
try:
258-
_,rest=line.split(None,1)
259-
exceptValueError:
260-
print("usage: import <file>")
261-
continue
262-
_load_functions_from_file(engine,rest.strip(),overwrite=False,debug=debug)
263-
continue
264-
ifline.lower().startswith("reimport "):
265-
try:
266-
_,rest=line.split(None,1)
267-
exceptValueError:
268-
print("usage: reimport <file>")
269-
continue
270-
_load_functions_from_file(engine,rest.strip(),overwrite=True,debug=debug)
271-
continue
272-
iflower=="clear vars":
273-
ifengine._frames:# type: ignore[attr-defined]
274-
engine._frames[-1]=TinyFrame()# type: ignore[attr-defined]
275-
else:
276-
engine.push_frame()
277-
print("[locals cleared]")
278-
continue
279-
iflower=="clear all":
280-
engine=TinyEngine()
281-
engine.push_frame()
282-
print("[engine reset]")
283298
continue
284299

285300
# Treat as part of TINY input

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