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This commit is contained in:
blueloveTH 2025-03-06 17:02:05 +08:00
parent a9955cd210
commit 6b61c85dac
6 changed files with 27 additions and 24 deletions
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2
include/pocketpy/interpreter/vm.h
View File

@ -20,7 +20,7 @@
typedef struct TraceInfo {
SourceLocation prev_loc;
py_TraceFunc tracefunc;
py_TraceFunc func;
} TraceInfo;
typedef struct VM {

7
include/pocketpy/pocketpy.h
View File

@ -55,9 +55,9 @@ typedef struct py_Frame py_Frame;
// An enum for tracing events.
enum py_TraceEvent {
TRACE_EVENT_LINE,
TRACE_EVENT_CALL,
TRACE_EVENT_RETURN,
TRACE_EVENT_EXCEPTION,
TRACE_EVENT_PUSH,
TRACE_EVENT_POP,
};
typedef void (*py_TraceFunc)(py_Frame* frame, enum py_TraceEvent);
@ -108,6 +108,9 @@ PK_API void py_sys_settrace(py_TraceFunc func);
/// Setup the callbacks for the current VM.
PK_API py_Callbacks* py_callbacks();
/// Get the current source location of the frame.
PK_API const char* py_Frame_sourceloc(py_Frame* frame, int* lineno);
/// Run a source string.
/// @param source source string.
/// @param filename filename (for error messages).

17
src/interpreter/ceval.c
View File

@ -66,13 +66,7 @@ static bool stack_format_object(VM* self, c11_sv spec);
FrameResult res = VM__vectorcall(self, (argc), (kwargc), true); \
switch(res) { \
case RES_RETURN: PUSH(&self->last_retval); break; \
case RES_CALL: { \
frame = self->top_frame; \
if(self->trace_info.tracefunc) { \
self->trace_info.tracefunc(frame, TRACE_EVENT_CALL); \
} \
goto __NEXT_FRAME; \
} \
case RES_CALL: frame = self->top_frame; goto __NEXT_FRAME; \
case RES_ERROR: goto __ERROR; \
default: c11__unreachable(); \
} \
@ -105,14 +99,14 @@ FrameResult VM__run_top_frame(VM* self) {
__NEXT_STEP:
byte = codes[frame->ip];
if(self->trace_info.tracefunc) {
if(self->trace_info.func) {
SourceLocation loc = Frame__source_location(frame);
SourceLocation prev_loc = self->trace_info.prev_loc;
if(loc.lineno != prev_loc.lineno || loc.src != prev_loc.src) {
if(prev_loc.src) PK_DECREF(prev_loc.src);
PK_INCREF(loc.src);
self->trace_info.prev_loc = loc;
self->trace_info.tracefunc(frame, TRACE_EVENT_LINE);
self->trace_info.func(frame, TRACE_EVENT_LINE);
}
}
@ -757,9 +751,6 @@ FrameResult VM__run_top_frame(VM* self) {
} else {
py_newnone(&self->last_retval);
}
if(self->trace_info.tracefunc) {
self->trace_info.tracefunc(frame, TRACE_EVENT_RETURN);
}
VM__pop_frame(self);
if(frame == base_frame) { // [ frameBase<- ]
return RES_RETURN;
@ -1459,7 +1450,7 @@ static bool stack_format_object(VM* self, c11_sv spec) {
void py_sys_settrace(py_TraceFunc func) {
TraceInfo* info = &pk_current_vm->trace_info;
info->tracefunc = func;
info->func = func;
if(info->prev_loc.src) {
PK_DECREF(info->prev_loc.src);
info->prev_loc.src = NULL;

7
src/interpreter/frame.c
View File

@ -121,6 +121,7 @@ void Frame__gc_mark(py_Frame* self) {
int Frame__lineno(const py_Frame* self) {
int ip = self->ip;
if(ip < 0) return 0;
return c11__getitem(BytecodeEx, &self->co->codes_ex, ip).lineno;
}
@ -181,3 +182,9 @@ SourceLocation Frame__source_location(py_Frame* self) {
loc.src = self->co->src;
return loc;
}
const char* py_Frame_sourceloc(py_Frame* self, int* lineno) {
SourceLocation loc = Frame__source_location(self);
*lineno = loc.lineno;
return loc.src->filename->data;
}

3
src/interpreter/vm.c
View File

@ -265,13 +265,14 @@ void VM__dtor(VM* self) {
void VM__push_frame(VM* self, py_Frame* frame) {
frame->f_back = self->top_frame;
self->top_frame = frame;
if(self->trace_info.func) self->trace_info.func(frame, TRACE_EVENT_PUSH);
}
void VM__pop_frame(VM* self) {
assert(self->top_frame);
py_Frame* frame = self->top_frame;
if(self->trace_info.func) self->trace_info.func(frame, TRACE_EVENT_POP);
// reset stack pointer
self->stack.sp = frame->p0;
// pop frame and delete
self->top_frame = frame->f_back;

5
src/public/py_exception.c
View File

@ -251,9 +251,10 @@ bool py_raise(py_Ref exc) {
}
vm->curr_exception = *exc;
vm->is_curr_exc_handled = false;
if(vm->trace_info.tracefunc && !py_istype(exc, tp_StopIteration)) {
if(vm->trace_info.func && !py_istype(exc, tp_StopIteration)) {
py_Frame* frame = vm->top_frame;
vm->trace_info.tracefunc(frame, TRACE_EVENT_EXCEPTION);
vm->trace_info.func(frame, TRACE_EVENT_EXCEPTION);
}
return false;
}