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From 160d84fb761c54a5f757aff907fc197d259196bd Mon Sep 17 00:00:00 2001
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From: Phil Sutter <psutter@redhat.com>
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Date: Mon, 17 Feb 2020 15:26:42 +0100
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Subject: [PATCH] parser: add a helper for concat expression handling
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1795224
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Upstream Status: nftables commit 10f114806ccd9
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commit 10f114806ccd9d64f9d72eaa813babb04d719688
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Author: Florian Westphal <fw@strlen.de>
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Date: Wed Dec 11 14:31:44 2019 +0100
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parser: add a helper for concat expression handling
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Cull the repeated copy&paste snippets and add/use a helper for this.
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Signed-off-by: Florian Westphal <fw@strlen.de>
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---
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src/parser_bison.y | 99 ++++++++++++++++++++--------------------------
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1 file changed, 43 insertions(+), 56 deletions(-)
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diff --git a/src/parser_bison.y b/src/parser_bison.y
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index 707f467..0fd9b94 100644
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--- a/src/parser_bison.y
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+++ b/src/parser_bison.y
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@@ -102,6 +102,25 @@ static void location_update(struct location *loc, struct location *rhs, int n)
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}
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}
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+static struct expr *handle_concat_expr(const struct location *loc,
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+ struct expr *expr,
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+ struct expr *expr_l, struct expr *expr_r,
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+ struct location loc_rhs[3])
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+{
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+ if (expr->etype != EXPR_CONCAT) {
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+ expr = concat_expr_alloc(loc);
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+ compound_expr_add(expr, expr_l);
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+ } else {
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+ location_update(&expr_r->location, loc_rhs, 2);
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+
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+ expr = expr_l;
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+ expr->location = *loc;
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+ }
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+
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+ compound_expr_add(expr, expr_r);
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+ return expr;
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+}
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+
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#define YYLLOC_DEFAULT(Current, Rhs, N) location_update(&Current, Rhs, N)
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#define symbol_value(loc, str) \
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@@ -1878,20 +1897,12 @@ data_type_atom_expr : type_identifier
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data_type_expr : data_type_atom_expr
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| data_type_expr DOT data_type_atom_expr
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{
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- if ($1->etype != EXPR_CONCAT) {
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- $$ = concat_expr_alloc(&@$);
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- compound_expr_add($$, $1);
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- } else {
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- struct location rhs[] = {
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- [1] = @2,
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- [2] = @3,
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- };
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- location_update(&$3->location, rhs, 2);
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-
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- $$ = $1;
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- $$->location = @$;
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- }
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- compound_expr_add($$, $3);
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+ struct location rhs[] = {
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+ [1] = @2,
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+ [2] = @3,
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+ };
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+
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+ $$ = handle_concat_expr(&@$, $$, $1, $3, rhs);
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}
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;
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@@ -2992,20 +3003,12 @@ basic_stmt_expr : inclusive_or_stmt_expr
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concat_stmt_expr : basic_stmt_expr
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| concat_stmt_expr DOT primary_stmt_expr
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{
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- if ($$->etype != EXPR_CONCAT) {
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- $$ = concat_expr_alloc(&@$);
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- compound_expr_add($$, $1);
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- } else {
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- struct location rhs[] = {
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- [1] = @2,
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- [2] = @3,
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- };
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- location_update(&$3->location, rhs, 2);
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-
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- $$ = $1;
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- $$->location = @$;
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- }
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- compound_expr_add($$, $3);
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+ struct location rhs[] = {
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+ [1] = @2,
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+ [2] = @3,
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+ };
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+
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+ $$ = handle_concat_expr(&@$, $$, $1, $3, rhs);
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}
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;
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@@ -3525,20 +3528,12 @@ basic_expr : inclusive_or_expr
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concat_expr : basic_expr
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| concat_expr DOT basic_expr
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{
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- if ($$->etype != EXPR_CONCAT) {
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- $$ = concat_expr_alloc(&@$);
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- compound_expr_add($$, $1);
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- } else {
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- struct location rhs[] = {
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- [1] = @2,
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- [2] = @3,
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- };
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- location_update(&$3->location, rhs, 2);
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-
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- $$ = $1;
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- $$->location = @$;
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- }
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- compound_expr_add($$, $3);
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+ struct location rhs[] = {
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+ [1] = @2,
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+ [2] = @3,
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+ };
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+
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+ $$ = handle_concat_expr(&@$, $$, $1, $3, rhs);
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}
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;
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@@ -3946,20 +3941,12 @@ basic_rhs_expr : inclusive_or_rhs_expr
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concat_rhs_expr : basic_rhs_expr
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| concat_rhs_expr DOT basic_rhs_expr
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{
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- if ($$->etype != EXPR_CONCAT) {
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- $$ = concat_expr_alloc(&@$);
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- compound_expr_add($$, $1);
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- } else {
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- struct location rhs[] = {
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- [1] = @2,
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- [2] = @3,
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- };
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- location_update(&$3->location, rhs, 2);
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-
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- $$ = $1;
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- $$->location = @$;
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- }
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- compound_expr_add($$, $3);
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+ struct location rhs[] = {
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+ [1] = @2,
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+ [2] = @3,
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+ };
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+
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+ $$ = handle_concat_expr(&@$, $$, $1, $3, rhs);
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}
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;
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--
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2.31.1
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