php-src/ext/dom/lexbor/patches/0006-Patch-out-unused-CSS-style-code.patch

From 168dad55b6278cd45e0f0b2aed802ce9bace3274 Mon Sep 17 00:00:00 2001
From: Niels Dossche <7771979+nielsdos@users.noreply.github.com>
Date: Sun, 7 Jan 2024 21:59:28 +0100
Subject: [PATCH 6/6] Patch out unused CSS style code

---
 source/lexbor/css/rule.h                      |  2 ++
 source/lexbor/html/interfaces/document.c      | 29 +++++++++++++++++++
 source/lexbor/html/interfaces/document.h      |  2 --
 source/lexbor/html/interfaces/element.c       | 29 +++++++++++++++++++
 source/lexbor/html/interfaces/style_element.c |  6 ++++
 5 files changed, 66 insertions(+), 2 deletions(-)

diff --git a/source/lexbor/css/rule.h b/source/lexbor/css/rule.h
index 7cc4f0b..bd191f9 100644
--- a/source/lexbor/css/rule.h
+++ b/source/lexbor/css/rule.h
@@ -339,6 +339,7 @@ lxb_css_rule_ref_dec(lxb_css_rule_t *rule)
 lxb_inline void
 lxb_css_rule_ref_dec_destroy(lxb_css_rule_t *rule)
 {
+#if 0
     if (rule->ref_count > 0) {
         rule->ref_count--;
     }
@@ -346,6 +347,7 @@ lxb_css_rule_ref_dec_destroy(lxb_css_rule_t *rule)
     if (rule->ref_count == 0) {
         (void) lxb_css_rule_destroy(rule, true);
     }
+#endif
 }
 
 lxb_inline void
diff --git a/source/lexbor/html/interfaces/document.c b/source/lexbor/html/interfaces/document.c
index bd3c02b..aa305a9 100644
--- a/source/lexbor/html/interfaces/document.c
+++ b/source/lexbor/html/interfaces/document.c
@@ -58,6 +58,7 @@ static lxb_html_document_css_custom_entry_t *
 lxb_html_document_css_customs_insert(lxb_html_document_t *document,
                                      const lxb_char_t *key, size_t length);
 
+#if 0
 static lxb_status_t
 lxb_html_document_style_remove_by_rule_cb(lxb_dom_node_t *node,
                                           lxb_css_selector_specificity_t spec,
@@ -74,6 +75,7 @@ lxb_html_document_style_cb(lxb_dom_node_t *node,
 
 static lxb_status_t
 lxb_html_document_done(lxb_html_document_t *document);
+#endif
 
 
 lxb_status_t
@@ -86,6 +88,7 @@ lxb_html_document_parser_prepare(lxb_html_document_t *document);
 static lexbor_action_t
 lxb_html_document_title_walker(lxb_dom_node_t *node, void *ctx);
 
+#if 0
 static lxb_status_t
 lxb_html_document_event_insert(lxb_dom_node_t *node);
 
@@ -112,6 +115,7 @@ lxb_html_document_event_destroy(lxb_dom_node_t *node);
 static lxb_status_t
 lxb_html_document_event_set_value(lxb_dom_node_t *node,
                                   const lxb_char_t *value, size_t length);
+#endif
 
 
 lxb_html_document_t *
@@ -171,7 +175,9 @@ lxb_html_document_interface_destroy(lxb_html_document_t *document)
 
     if (doc->node.owner_document == doc) {
         (void) lxb_html_parser_unref(doc->parser);
+#if 0
         lxb_html_document_css_destroy(document);
+#endif
     }
 
     (void) lxb_dom_document_destroy(doc);
@@ -193,11 +199,14 @@ lxb_html_document_clean(lxb_html_document_t *document)
     document->iframe_srcdoc = NULL;
     document->ready_state = LXB_HTML_DOCUMENT_READY_STATE_UNDEF;
 
+#if 0
     lxb_html_document_css_clean(document);
+#endif
 
     lxb_dom_document_clean(lxb_dom_interface_document(document));
 }
 
+#if 0
 lxb_status_t
 lxb_html_document_css_init(lxb_html_document_t *document)
 {
@@ -330,6 +339,7 @@ lxb_html_document_css_clean(lxb_html_document_t *document)
         lexbor_dobject_clean(css->weak);
     }
 }
+#endif
 
 void
 lxb_html_document_css_parser_attach(lxb_html_document_t *document,
@@ -575,6 +585,7 @@ void
 lxb_html_document_stylesheet_destroy_all(lxb_html_document_t *document,
                                          bool destroy_memory)
 {
+#if 0
     size_t length;
     lxb_css_stylesheet_t *sst;
     lxb_html_document_css_t *css = &document->css;
@@ -586,29 +597,37 @@ lxb_html_document_stylesheet_destroy_all(lxb_html_document_t *document,
 
         (void) lxb_css_stylesheet_destroy(sst, destroy_memory);
     }
+#endif
 }
 
 lxb_status_t
 lxb_html_document_style_attach(lxb_html_document_t *document,
                                lxb_css_rule_style_t *style)
 {
+#if 0
     lxb_html_document_css_t *css = &document->css;
 
     return lxb_selectors_find(css->selectors, lxb_dom_interface_node(document),
                               style->selector, lxb_html_document_style_cb, style);
+#endif
+    return LXB_STATUS_OK;
 }
 
 lxb_status_t
 lxb_html_document_style_remove(lxb_html_document_t *document,
                                lxb_css_rule_style_t *style)
 {
+#if 0
     lxb_html_document_css_t *css = &document->css;
 
     return lxb_selectors_find(css->selectors, lxb_dom_interface_node(document),
                               style->selector,
                               lxb_html_document_style_remove_by_rule_cb, style);
+#endif
+    return LXB_STATUS_OK;
 }
 
+#if 0
 static lxb_status_t
 lxb_html_document_style_remove_by_rule_cb(lxb_dom_node_t *node,
                                           lxb_css_selector_specificity_t spec,
@@ -646,20 +665,25 @@ lxb_html_document_style_remove_avl_cb(lexbor_avl_t *avl,
                                           style, context->list);
     return LXB_STATUS_OK;
 }
+#endif
 
 lxb_status_t
 lxb_html_document_style_attach_by_element(lxb_html_document_t *document,
                                           lxb_html_element_t *element,
                                           lxb_css_rule_style_t *style)
 {
+#if 0
     lxb_html_document_css_t *css = &document->css;
 
     return lxb_selectors_match_node(css->selectors,
                                     lxb_dom_interface_node(element),
                                     style->selector,
                                     lxb_html_document_style_cb, style);
+#endif
+    return LXB_STATUS_OK;
 }
 
+#if 0
 static lxb_status_t
 lxb_html_document_style_cb(lxb_dom_node_t *node,
                            lxb_css_selector_specificity_t spec, void *ctx)
@@ -675,6 +699,7 @@ lxb_html_document_style_cb(lxb_dom_node_t *node,
     return lxb_html_element_style_list_append(lxb_html_interface_element(node),
                                               style->declarations, spec);
 }
+#endif
 
 lxb_html_document_t *
 lxb_html_document_destroy(lxb_html_document_t *document)
@@ -851,6 +876,7 @@ lxb_html_document_parser_prepare(lxb_html_document_t *document)
     return LXB_STATUS_OK;
 }
 
+#if 0
 static lxb_status_t
 lxb_html_document_done(lxb_html_document_t *document)
 {
@@ -875,6 +901,7 @@ lxb_html_document_done(lxb_html_document_t *document)
 
     return LXB_STATUS_OK;
 }
+#endif
 
 const lxb_char_t *
 lxb_html_document_title(lxb_html_document_t *document, size_t *len)
@@ -962,6 +989,7 @@ lxb_html_document_import_node(lxb_html_document_t *doc, lxb_dom_node_t *node,
     return lxb_dom_document_import_node(&doc->dom_document, node, deep);
 }
 
+#if 0
 static lxb_status_t
 lxb_html_document_event_insert(lxb_dom_node_t *node)
 {
@@ -1233,6 +1261,7 @@ lxb_html_document_event_set_value(lxb_dom_node_t *node,
     return lxb_html_element_style_parse(lxb_html_interface_element(node),
                                         value, length);
 }
+#endif
 
 /*
  * No inline functions for ABI.
diff --git a/source/lexbor/html/interfaces/document.h b/source/lexbor/html/interfaces/document.h
index 7e8d1ea..827ff64 100644
--- a/source/lexbor/html/interfaces/document.h
+++ b/source/lexbor/html/interfaces/document.h
@@ -20,7 +20,6 @@ extern "C" {
 #include "lexbor/dom/interfaces/attr.h"
 #include "lexbor/dom/interfaces/document.h"
 #include "lexbor/css/css.h"
-#include "lexbor/selectors/selectors.h"
 
 
 typedef lxb_status_t
@@ -45,7 +44,6 @@ typedef struct {
     lxb_css_memory_t    *memory;
     lxb_css_selectors_t *css_selectors;
     lxb_css_parser_t    *parser;
-    lxb_selectors_t     *selectors;
 
     lexbor_avl_t        *styles;
     lexbor_array_t      *stylesheets;
diff --git a/source/lexbor/html/interfaces/element.c b/source/lexbor/html/interfaces/element.c
index 229d3d7..363040c 100644
--- a/source/lexbor/html/interfaces/element.c
+++ b/source/lexbor/html/interfaces/element.c
@@ -38,9 +38,11 @@ static lxb_status_t
 lxb_html_element_style_serialize_cb(lexbor_avl_t *avl, lexbor_avl_node_t **root,
                                     lexbor_avl_node_t *node, void *ctx);
 
+#if 0
 static lxb_status_t
 lxb_html_element_style_serialize_str_cb(const lxb_char_t *data,
                                         size_t len, void *ctx);
+#endif
 
 
 lxb_html_element_t *
@@ -102,6 +104,7 @@ const lxb_css_rule_declaration_t *
 lxb_html_element_style_by_name(lxb_html_element_t *element,
                                const lxb_char_t *name, size_t size)
 {
+#if 0
     uintptr_t id;
     lxb_html_style_node_t *node;
     lxb_dom_document_t *ddoc = lxb_dom_interface_node(element)->owner_document;
@@ -115,11 +118,14 @@ lxb_html_element_style_by_name(lxb_html_element_t *element,
     node = (void *) lexbor_avl_search(doc->css.styles, element->style, id);
 
     return (node != NULL) ? node->entry.value : NULL;
+#endif
+    return NULL;
 }
 
 const lxb_css_rule_declaration_t *
 lxb_html_element_style_by_id(lxb_html_element_t *element, uintptr_t id)
 {
+#if 0
     const lxb_html_style_node_t *node;
 
     node = lxb_html_element_style_node_by_id(element, id);
@@ -128,6 +134,8 @@ lxb_html_element_style_by_id(lxb_html_element_t *element, uintptr_t id)
     }
 
     return node->entry.value;
+#endif
+    return NULL;
 }
 
 const lxb_html_style_node_t *
@@ -144,6 +152,7 @@ const lxb_html_style_node_t *
 lxb_html_element_style_node_by_name(lxb_html_element_t *element,
                                     const lxb_char_t *name, size_t size)
 {
+#if 0
     uintptr_t id;
     lxb_dom_document_t *ddoc = lxb_dom_interface_node(element)->owner_document;
     lxb_html_document_t *doc = lxb_html_interface_document(ddoc);
@@ -155,11 +164,14 @@ lxb_html_element_style_node_by_name(lxb_html_element_t *element,
 
     return (lxb_html_style_node_t *) lexbor_avl_search(doc->css.styles,
                                                        element->style, id);
+#endif
+    return NULL;
 }
 
 const void *
 lxb_html_element_css_property_by_id(lxb_html_element_t *element, uintptr_t id)
 {
+#if 0
     lxb_css_rule_declaration_t *declr;
     const lxb_html_style_node_t *node;
 
@@ -171,6 +183,8 @@ lxb_html_element_css_property_by_id(lxb_html_element_t *element, uintptr_t id)
     declr = node->entry.value;
 
     return declr->u.user;
+#endif
+    return NULL;
 }
 
 lxb_status_t
@@ -224,6 +238,7 @@ lxb_status_t
 lxb_html_element_style_parse(lxb_html_element_t *element,
                              const lxb_char_t *style, size_t size)
 {
+#if 0
     lxb_css_rule_declaration_list_t *list;
 
     lxb_dom_document_t *ddoc = lxb_dom_interface_node(element)->owner_document;
@@ -240,6 +255,8 @@ lxb_html_element_style_parse(lxb_html_element_t *element,
 
     return lxb_html_element_style_list_append(element, list,
                                               lxb_css_selector_sp_up_s(0));
+#endif
+    return LXB_STATUS_ERROR;
 }
 
 lxb_status_t
@@ -393,6 +410,7 @@ void
 lxb_html_element_style_remove_by_name(lxb_html_element_t *element,
                                       const lxb_char_t *name, size_t size)
 {
+#if 0
     uintptr_t id;
     lxb_dom_document_t *ddoc = lxb_dom_interface_node(element)->owner_document;
     lxb_html_document_t *doc = lxb_html_interface_document(ddoc);
@@ -403,11 +421,13 @@ lxb_html_element_style_remove_by_name(lxb_html_element_t *element,
     }
 
     lxb_html_element_style_remove_by_id(element, id);
+#endif
 }
 
 void
 lxb_html_element_style_remove_by_id(lxb_html_element_t *element, uintptr_t id)
 {
+#if 0
     lxb_html_style_node_t *node;
     lxb_dom_document_t *ddoc = lxb_dom_interface_node(element)->owner_document;
     lxb_html_document_t *doc = lxb_html_interface_document(ddoc);
@@ -417,6 +437,7 @@ lxb_html_element_style_remove_by_id(lxb_html_element_t *element, uintptr_t id)
     if (node != NULL) {
         lxb_html_element_style_remove_all(doc, &element->style, node);
     }
+#endif
 }
 
 lxb_html_style_node_t *
@@ -576,6 +597,7 @@ static lxb_status_t
 lxb_html_element_style_serialize_cb(lexbor_avl_t *avl, lexbor_avl_node_t **root,
                                     lexbor_avl_node_t *node, void *ctx)
 {
+#if 0
     lxb_status_t status;
     lexbor_serialize_ctx_t *context = ctx;
 
@@ -589,6 +611,8 @@ lxb_html_element_style_serialize_cb(lexbor_avl_t *avl, lexbor_avl_node_t **root,
     context->count = 1;
 
     return lxb_css_rule_serialize(node->value, context->cb, context->ctx);
+#endif
+    return LXB_STATUS_ERROR;
 }
 
 lxb_status_t
@@ -596,6 +620,7 @@ lxb_html_element_style_serialize_str(lxb_html_element_t *element,
                                      lexbor_str_t *str,
                                      lxb_html_element_style_opt_t opt)
 {
+#if 0
     lxb_dom_document_t *doc;
     lxb_html_element_style_ctx_t context;
 
@@ -614,8 +639,11 @@ lxb_html_element_style_serialize_str(lxb_html_element_t *element,
 
     return lxb_html_element_style_serialize(element, opt,
                             lxb_html_element_style_serialize_str_cb, &context);
+#endif
+    return LXB_STATUS_ERROR;
 }
 
+#if 0
 static lxb_status_t
 lxb_html_element_style_serialize_str_cb(const lxb_char_t *data,
                                         size_t len, void *ctx)
@@ -630,3 +658,4 @@ lxb_html_element_style_serialize_str_cb(const lxb_char_t *data,
 
     return LXB_STATUS_OK;
 }
+#endif
diff --git a/source/lexbor/html/interfaces/style_element.c b/source/lexbor/html/interfaces/style_element.c
index 66d55c4..9a402ef 100644
--- a/source/lexbor/html/interfaces/style_element.c
+++ b/source/lexbor/html/interfaces/style_element.c
@@ -35,7 +35,9 @@ lxb_html_style_element_interface_destroy(lxb_html_style_element_t *style_element
     (void) lxb_dom_node_interface_destroy(lxb_dom_interface_node(style_element));
 
     if (sst != NULL) {
+#if 0
         (void) lxb_css_stylesheet_destroy(sst, true);
+#endif
     }
 
     return NULL;
@@ -44,8 +46,10 @@ lxb_html_style_element_interface_destroy(lxb_html_style_element_t *style_element
 lxb_status_t
 lxb_html_style_element_parse(lxb_html_style_element_t *element)
 {
+#if 0
     lexbor_str_t *str;
     lxb_dom_text_t *text;
+#endif
     lxb_dom_node_t *node;
 
     lxb_dom_document_t *ddoc = lxb_dom_interface_node(element)->owner_document;
@@ -61,11 +65,13 @@ lxb_html_style_element_parse(lxb_html_style_element_t *element)
         return LXB_STATUS_OK;
     }
 
+#if 0
     text = lxb_dom_interface_text(lxb_dom_interface_node(element)->first_child);
     str = &text->char_data.data;
 
     element->stylesheet = lxb_css_stylesheet_parse(css->parser, str->data,
                                                    str->length);
+#endif
     if (element->stylesheet == NULL) {
         return css->parser->status;
     }
-- 
2.44.0