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py: Integrate sys.settrace feature into the VM and runtime.

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This commit adds support for sys.settrace, allowing to install Python
handlers to trace execution of Python code.  The interface follows CPython
as closely as possible.  The feature is disabled by default and can be
enabled via MICROPY_PY_SYS_SETTRACE.
This commit is contained in:
Milan Rossa
2019-08-14 16:09:36 +02:00
committed by Damien George
parent c96aedad46
commit 310b3d1b81
15 changed files with 201 additions and 1 deletions
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6
py/compile.c
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@@ -1608,6 +1608,9 @@ STATIC void compile_try_except(compiler_t *comp, mp_parse_node_t pn_body, int n_
qstr qstr_exception_local = 0;
uint end_finally_label = comp_next_label(comp);
#if MICROPY_PY_SYS_SETTRACE
EMIT_ARG(set_source_line, pns_except->source_line);
#endif
if (MP_PARSE_NODE_IS_NULL(pns_except->nodes[0])) {
// this is a catch all exception handler
@@ -3157,6 +3160,9 @@ STATIC void compile_scope(compiler_t *comp, scope_t *scope, pass_kind_t pass) {
scope_find_or_add_id(scope, MP_QSTR___class__, ID_INFO_KIND_LOCAL);
}
#if MICROPY_PY_SYS_SETTRACE
EMIT_ARG(set_source_line, pns->source_line);
#endif
compile_load_id(comp, MP_QSTR___name__);
compile_store_id(comp, MP_QSTR___module__);
EMIT_ARG(load_const_str, MP_PARSE_NODE_LEAF_ARG(pns->nodes[0])); // 0 is class name