nftables/SOURCES/0018-parser-add-a-helper-for-concat-expression-handling.patch
2021-09-09 22:49:16 +00:00

163 lines
3.9 KiB
Diff

From 160d84fb761c54a5f757aff907fc197d259196bd Mon Sep 17 00:00:00 2001
From: Phil Sutter <psutter@redhat.com>
Date: Mon, 17 Feb 2020 15:26:42 +0100
Subject: [PATCH] parser: add a helper for concat expression handling
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1795224
Upstream Status: nftables commit 10f114806ccd9
commit 10f114806ccd9d64f9d72eaa813babb04d719688
Author: Florian Westphal <fw@strlen.de>
Date: Wed Dec 11 14:31:44 2019 +0100
parser: add a helper for concat expression handling
Cull the repeated copy&paste snippets and add/use a helper for this.
Signed-off-by: Florian Westphal <fw@strlen.de>
---
src/parser_bison.y | 99 ++++++++++++++++++++++++------------------------------
1 file changed, 43 insertions(+), 56 deletions(-)
diff --git a/src/parser_bison.y b/src/parser_bison.y
index 707f467..0fd9b94 100644
--- a/src/parser_bison.y
+++ b/src/parser_bison.y
@@ -102,6 +102,25 @@ static void location_update(struct location *loc, struct location *rhs, int n)
}
}
+static struct expr *handle_concat_expr(const struct location *loc,
+ struct expr *expr,
+ struct expr *expr_l, struct expr *expr_r,
+ struct location loc_rhs[3])
+{
+ if (expr->etype != EXPR_CONCAT) {
+ expr = concat_expr_alloc(loc);
+ compound_expr_add(expr, expr_l);
+ } else {
+ location_update(&expr_r->location, loc_rhs, 2);
+
+ expr = expr_l;
+ expr->location = *loc;
+ }
+
+ compound_expr_add(expr, expr_r);
+ return expr;
+}
+
#define YYLLOC_DEFAULT(Current, Rhs, N) location_update(&Current, Rhs, N)
#define symbol_value(loc, str) \
@@ -1878,20 +1897,12 @@ data_type_atom_expr : type_identifier
data_type_expr : data_type_atom_expr
| data_type_expr DOT data_type_atom_expr
{
- if ($1->etype != EXPR_CONCAT) {
- $$ = concat_expr_alloc(&@$);
- compound_expr_add($$, $1);
- } else {
- struct location rhs[] = {
- [1] = @2,
- [2] = @3,
- };
- location_update(&$3->location, rhs, 2);
-
- $$ = $1;
- $$->location = @$;
- }
- compound_expr_add($$, $3);
+ struct location rhs[] = {
+ [1] = @2,
+ [2] = @3,
+ };
+
+ $$ = handle_concat_expr(&@$, $$, $1, $3, rhs);
}
;
@@ -2992,20 +3003,12 @@ basic_stmt_expr : inclusive_or_stmt_expr
concat_stmt_expr : basic_stmt_expr
| concat_stmt_expr DOT primary_stmt_expr
{
- if ($$->etype != EXPR_CONCAT) {
- $$ = concat_expr_alloc(&@$);
- compound_expr_add($$, $1);
- } else {
- struct location rhs[] = {
- [1] = @2,
- [2] = @3,
- };
- location_update(&$3->location, rhs, 2);
-
- $$ = $1;
- $$->location = @$;
- }
- compound_expr_add($$, $3);
+ struct location rhs[] = {
+ [1] = @2,
+ [2] = @3,
+ };
+
+ $$ = handle_concat_expr(&@$, $$, $1, $3, rhs);
}
;
@@ -3525,20 +3528,12 @@ basic_expr : inclusive_or_expr
concat_expr : basic_expr
| concat_expr DOT basic_expr
{
- if ($$->etype != EXPR_CONCAT) {
- $$ = concat_expr_alloc(&@$);
- compound_expr_add($$, $1);
- } else {
- struct location rhs[] = {
- [1] = @2,
- [2] = @3,
- };
- location_update(&$3->location, rhs, 2);
-
- $$ = $1;
- $$->location = @$;
- }
- compound_expr_add($$, $3);
+ struct location rhs[] = {
+ [1] = @2,
+ [2] = @3,
+ };
+
+ $$ = handle_concat_expr(&@$, $$, $1, $3, rhs);
}
;
@@ -3946,20 +3941,12 @@ basic_rhs_expr : inclusive_or_rhs_expr
concat_rhs_expr : basic_rhs_expr
| concat_rhs_expr DOT basic_rhs_expr
{
- if ($$->etype != EXPR_CONCAT) {
- $$ = concat_expr_alloc(&@$);
- compound_expr_add($$, $1);
- } else {
- struct location rhs[] = {
- [1] = @2,
- [2] = @3,
- };
- location_update(&$3->location, rhs, 2);
-
- $$ = $1;
- $$->location = @$;
- }
- compound_expr_add($$, $3);
+ struct location rhs[] = {
+ [1] = @2,
+ [2] = @3,
+ };
+
+ $$ = handle_concat_expr(&@$, $$, $1, $3, rhs);
}
;
--
1.8.3.1