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Simplify ast_for_trailer() in anticipation of more changes.

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Jeremy Hylton 2006-02-27 16:50:35 +00:00
parent da1329b4f9
commit 9ebfbf0a43
1 changed files with 11 additions and 17 deletions
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28
Python/ast.c
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@ -1389,24 +1389,26 @@ static expr_ty
ast_for_trailer(struct compiling *c, const node *n, expr_ty left_expr)
{
/* trailer: '(' [arglist] ')' | '[' subscriptlist ']' | '.' NAME */
expr_ty e;
REQ(n, trailer);
if (TYPE(CHILD(n, 0)) == LPAR) {
if (NCH(n) == 2)
e = Call(left_expr, NULL, NULL, NULL, NULL, LINENO(n), c->c_arena);
return Call(left_expr, NULL, NULL, NULL, NULL, LINENO(n), c->c_arena);
else
e = ast_for_call(c, CHILD(n, 1), left_expr);
return ast_for_call(c, CHILD(n, 1), left_expr);
}
else if (TYPE(CHILD(n, 0)) == LSQB) {
else if (TYPE(CHILD(n, 0)) == DOT ) {
return Attribute(left_expr, NEW_IDENTIFIER(CHILD(n, 1)), Load,
LINENO(n), c->c_arena);
}
else {
REQ(CHILD(n, 0), LSQB);
REQ(CHILD(n, 2), RSQB);
n = CHILD(n, 1);
if (NCH(n) <= 2) {
slice_ty slc = ast_for_slice(c, CHILD(n, 0));
if (!slc)
return NULL;
e = Subscript(left_expr, slc, Load, LINENO(n), c->c_arena);
if (!e)
return NULL;
return Subscript(left_expr, slc, Load, LINENO(n), c->c_arena);
}
else {
int j;
@ -1420,18 +1422,10 @@ ast_for_trailer(struct compiling *c, const node *n, expr_ty left_expr)
return NULL;
asdl_seq_SET(slices, j / 2, slc);
}
e = Subscript(left_expr, ExtSlice(slices, c->c_arena),
Load, LINENO(n), c->c_arena);
if (!e)
return NULL;
return Subscript(left_expr, ExtSlice(slices, c->c_arena),
Load, LINENO(n), c->c_arena);
}
}
else {
assert(TYPE(CHILD(n, 0)) == DOT);
e = Attribute(left_expr, NEW_IDENTIFIER(CHILD(n, 1)), Load, LINENO(n),
c->c_arena);
}
return e;
}
static expr_ty