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Code Issues Projects Releases Packages Wiki Activity Actions 11

PEP 0492 -- Coroutines with async and await syntax. Issue #24017.

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This commit is contained in:
Yury Selivanov 2015-05-11 22:57:16 -04:00
parent 4e6bf4b3da
commit 7544508f02
72 changed files with 9261 additions and 5739 deletions
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49
Python/symtable.c
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@ -180,7 +180,7 @@ static int symtable_visit_slice(struct symtable *st, slice_ty);
static int symtable_visit_params(struct symtable *st, asdl_seq *args);
static int symtable_visit_argannotations(struct symtable *st, asdl_seq *args);
static int symtable_implicit_arg(struct symtable *st, int pos);
static int symtable_visit_annotations(struct symtable *st, stmt_ty s);
static int symtable_visit_annotations(struct symtable *st, stmt_ty s, arguments_ty, expr_ty);
static int symtable_visit_withitem(struct symtable *st, withitem_ty item);
@ -1147,7 +1147,8 @@ symtable_visit_stmt(struct symtable *st, stmt_ty s)
VISIT_SEQ(st, expr, s->v.FunctionDef.args->defaults);
if (s->v.FunctionDef.args->kw_defaults)
VISIT_SEQ_WITH_NULL(st, expr, s->v.FunctionDef.args->kw_defaults);
if (!symtable_visit_annotations(st, s))
if (!symtable_visit_annotations(st, s, s->v.FunctionDef.args,
s->v.FunctionDef.returns))
VISIT_QUIT(st, 0);
if (s->v.FunctionDef.decorator_list)
VISIT_SEQ(st, expr, s->v.FunctionDef.decorator_list);
@ -1315,6 +1316,39 @@ symtable_visit_stmt(struct symtable *st, stmt_ty s)
VISIT_SEQ(st, withitem, s->v.With.items);
VISIT_SEQ(st, stmt, s->v.With.body);
break;
case AsyncFunctionDef_kind:
if (!symtable_add_def(st, s->v.AsyncFunctionDef.name, DEF_LOCAL))
VISIT_QUIT(st, 0);
if (s->v.AsyncFunctionDef.args->defaults)
VISIT_SEQ(st, expr, s->v.AsyncFunctionDef.args->defaults);
if (s->v.AsyncFunctionDef.args->kw_defaults)
VISIT_SEQ_WITH_NULL(st, expr,
s->v.AsyncFunctionDef.args->kw_defaults);
if (!symtable_visit_annotations(st, s, s->v.AsyncFunctionDef.args,
s->v.AsyncFunctionDef.returns))
VISIT_QUIT(st, 0);
if (s->v.AsyncFunctionDef.decorator_list)
VISIT_SEQ(st, expr, s->v.AsyncFunctionDef.decorator_list);
if (!symtable_enter_block(st, s->v.AsyncFunctionDef.name,
FunctionBlock, (void *)s, s->lineno,
s->col_offset))
VISIT_QUIT(st, 0);
VISIT(st, arguments, s->v.AsyncFunctionDef.args);
VISIT_SEQ(st, stmt, s->v.AsyncFunctionDef.body);
if (!symtable_exit_block(st, s))
VISIT_QUIT(st, 0);
break;
case AsyncWith_kind:
VISIT_SEQ(st, withitem, s->v.AsyncWith.items);
VISIT_SEQ(st, stmt, s->v.AsyncWith.body);
break;
case AsyncFor_kind:
VISIT(st, expr, s->v.AsyncFor.target);
VISIT(st, expr, s->v.AsyncFor.iter);
VISIT_SEQ(st, stmt, s->v.AsyncFor.body);
if (s->v.AsyncFor.orelse)
VISIT_SEQ(st, stmt, s->v.AsyncFor.orelse);
break;
}
VISIT_QUIT(st, 1);
}
@ -1392,6 +1426,10 @@ symtable_visit_expr(struct symtable *st, expr_ty e)
VISIT(st, expr, e->v.YieldFrom.value);
st->st_cur->ste_generator = 1;
break;
case Await_kind:
VISIT(st, expr, e->v.Await.value);
st->st_cur->ste_generator = 1;
break;
case Compare_kind:
VISIT(st, expr, e->v.Compare.left);
VISIT_SEQ(st, expr, e->v.Compare.comparators);
@ -1492,10 +1530,9 @@ symtable_visit_argannotations(struct symtable *st, asdl_seq *args)
}
static int
symtable_visit_annotations(struct symtable *st, stmt_ty s)
symtable_visit_annotations(struct symtable *st, stmt_ty s,
arguments_ty a, expr_ty returns)
{
arguments_ty a = s->v.FunctionDef.args;
if (a->args && !symtable_visit_argannotations(st, a->args))
return 0;
if (a->vararg && a->vararg->annotation)
@ -1504,7 +1541,7 @@ symtable_visit_annotations(struct symtable *st, stmt_ty s)
VISIT(st, expr, a->kwarg->annotation);
if (a->kwonlyargs && !symtable_visit_argannotations(st, a->kwonlyargs))
return 0;
if (s->v.FunctionDef.returns)
if (returns)
VISIT(st, expr, s->v.FunctionDef.returns);
return 1;
}