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-rw-r--r--Python/compile.c50
1 files changed, 33 insertions, 17 deletions
diff --git a/Python/compile.c b/Python/compile.c
index dd4262c170..1ecbae8181 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -970,6 +970,7 @@ opcode_stack_effect(int opcode, int oparg)
case LOAD_CLOSURE:
return 1;
case LOAD_DEREF:
+ case LOAD_CLASSDEREF:
return 1;
case STORE_DEREF:
return -1;
@@ -1501,15 +1502,15 @@ compiler_visit_annotations(struct compiler *c, arguments_ty args,
if (compiler_visit_argannotations(c, args->args, names))
goto error;
- if (args->varargannotation &&
- compiler_visit_argannotation(c, args->vararg,
- args->varargannotation, names))
+ if (args->vararg && args->vararg->annotation &&
+ compiler_visit_argannotation(c, args->vararg->arg,
+ args->vararg->annotation, names))
goto error;
if (compiler_visit_argannotations(c, args->kwonlyargs, names))
goto error;
- if (args->kwargannotation &&
- compiler_visit_argannotation(c, args->kwarg,
- args->kwargannotation, names))
+ if (args->kwarg && args->kwarg->annotation &&
+ compiler_visit_argannotation(c, args->kwarg->arg,
+ args->kwarg->annotation, names))
goto error;
if (!return_str) {
@@ -1568,6 +1569,8 @@ compiler_function(struct compiler *c, stmt_ty s)
if (!compiler_decorators(c, decos))
return 0;
+ if (args->defaults)
+ VISIT_SEQ(c, expr, args->defaults);
if (args->kwonlyargs) {
int res = compiler_visit_kwonlydefaults(c, args->kwonlyargs,
args->kw_defaults);
@@ -1575,8 +1578,6 @@ compiler_function(struct compiler *c, stmt_ty s)
return 0;
kw_default_count = res;
}
- if (args->defaults)
- VISIT_SEQ(c, expr, args->defaults);
num_annotations = compiler_visit_annotations(c, args, returns);
if (num_annotations < 0)
return 0;
@@ -1797,14 +1798,14 @@ compiler_lambda(struct compiler *c, expr_ty e)
return 0;
}
+ if (args->defaults)
+ VISIT_SEQ(c, expr, args->defaults);
if (args->kwonlyargs) {
int res = compiler_visit_kwonlydefaults(c, args->kwonlyargs,
args->kw_defaults);
if (res < 0) return 0;
kw_default_count = res;
}
- if (args->defaults)
- VISIT_SEQ(c, expr, args->defaults);
if (!compiler_enter_scope(c, name, COMPILER_SCOPE_FUNCTION,
(void *)e, e->lineno))
return 0;
@@ -2638,6 +2639,10 @@ compiler_nameop(struct compiler *c, identifier name, expr_context_ty ctx)
if (!mangled)
return 0;
+ assert(PyUnicode_CompareWithASCIIString(name, "None") &&
+ PyUnicode_CompareWithASCIIString(name, "True") &&
+ PyUnicode_CompareWithASCIIString(name, "False"));
+
op = 0;
optype = OP_NAME;
scope = PyST_GetScope(c->u->u_ste, mangled);
@@ -2673,7 +2678,9 @@ compiler_nameop(struct compiler *c, identifier name, expr_context_ty ctx)
switch (optype) {
case OP_DEREF:
switch (ctx) {
- case Load: op = LOAD_DEREF; break;
+ case Load:
+ op = (c->u->u_ste->ste_type == ClassBlock) ? LOAD_CLASSDEREF : LOAD_DEREF;
+ break;
case Store: op = STORE_DEREF; break;
case AugLoad:
case AugStore:
@@ -3197,12 +3204,18 @@ expr_constant(struct compiler *c, expr_ty e)
case Name_kind:
/* optimize away names that can't be reassigned */
id = PyUnicode_AsUTF8(e->v.Name.id);
- if (strcmp(id, "True") == 0) return 1;
- if (strcmp(id, "False") == 0) return 0;
- if (strcmp(id, "None") == 0) return 0;
- if (strcmp(id, "__debug__") == 0)
- return ! c->c_optimize;
- /* fall through */
+ if (id && strcmp(id, "__debug__") == 0)
+ return !c->c_optimize;
+ return -1;
+ case NameConstant_kind: {
+ PyObject *o = e->v.NameConstant.value;
+ if (o == Py_None)
+ return 0;
+ else if (o == Py_True)
+ return 1;
+ else if (o == Py_False)
+ return 0;
+ }
default:
return -1;
}
@@ -3378,6 +3391,9 @@ compiler_visit_expr(struct compiler *c, expr_ty e)
case Ellipsis_kind:
ADDOP_O(c, LOAD_CONST, Py_Ellipsis, consts);
break;
+ case NameConstant_kind:
+ ADDOP_O(c, LOAD_CONST, e->v.NameConstant.value, consts);
+ break;
/* The following exprs can be assignment targets. */
case Attribute_kind:
if (e->v.Attribute.ctx != AugStore)