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Optimize compact mode: reuse access in insert/remove

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This commit is contained in:
Arseny Kapoulkine 2022-02-08 22:44:31 -08:00
parent 314baf6605
commit f388c465dd
1 changed files with 40 additions and 26 deletions
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66
src/pugixml.cpp
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@ -1276,12 +1276,14 @@ PUGI__NS_BEGIN
child->parent = parent; child->parent = parent;
if (node->next_sibling) xml_node_struct* next = node->next_sibling;
node->next_sibling->prev_sibling_c = child;
if (next)
next->prev_sibling_c = child;
else else
parent->first_child->prev_sibling_c = child; parent->first_child->prev_sibling_c = child;
child->next_sibling = node->next_sibling; child->next_sibling = next;
child->prev_sibling_c = node; child->prev_sibling_c = node;
node->next_sibling = child; node->next_sibling = child;
@ -1293,12 +1295,14 @@ PUGI__NS_BEGIN
child->parent = parent; child->parent = parent;
if (node->prev_sibling_c->next_sibling) xml_node_struct* prev = node->prev_sibling_c;
node->prev_sibling_c->next_sibling = child;
if (prev->next_sibling)
prev->next_sibling = child;
else else
parent->first_child = child; parent->first_child = child;
child->prev_sibling_c = node->prev_sibling_c; child->prev_sibling_c = prev;
child->next_sibling = node; child->next_sibling = node;
node->prev_sibling_c = child; node->prev_sibling_c = child;
@ -1308,15 +1312,18 @@ PUGI__NS_BEGIN
{ {
xml_node_struct* parent = node->parent; xml_node_struct* parent = node->parent;
if (node->next_sibling) xml_node_struct* next = node->next_sibling;
node->next_sibling->prev_sibling_c = node->prev_sibling_c; xml_node_struct* prev = node->prev_sibling_c;
else
parent->first_child->prev_sibling_c = node->prev_sibling_c;
if (node->prev_sibling_c->next_sibling) if (next)
node->prev_sibling_c->next_sibling = node->next_sibling; next->prev_sibling_c = prev;
else else
parent->first_child = node->next_sibling; parent->first_child->prev_sibling_c = prev;
if (prev->next_sibling)
prev->next_sibling = next;
else
parent->first_child = next;
node->parent = 0; node->parent = 0;
node->prev_sibling_c = 0; node->prev_sibling_c = 0;
@ -1360,39 +1367,46 @@ PUGI__NS_BEGIN
inline void insert_attribute_after(xml_attribute_struct* attr, xml_attribute_struct* place, xml_node_struct* node) inline void insert_attribute_after(xml_attribute_struct* attr, xml_attribute_struct* place, xml_node_struct* node)
{ {
if (place->next_attribute) xml_attribute_struct* next = place->next_attribute;
place->next_attribute->prev_attribute_c = attr;
if (next)
next->prev_attribute_c = attr;
else else
node->first_attribute->prev_attribute_c = attr; node->first_attribute->prev_attribute_c = attr;
attr->next_attribute = place->next_attribute; attr->next_attribute = next;
attr->prev_attribute_c = place; attr->prev_attribute_c = place;
place->next_attribute = attr; place->next_attribute = attr;
} }
inline void insert_attribute_before(xml_attribute_struct* attr, xml_attribute_struct* place, xml_node_struct* node) inline void insert_attribute_before(xml_attribute_struct* attr, xml_attribute_struct* place, xml_node_struct* node)
{ {
if (place->prev_attribute_c->next_attribute) xml_attribute_struct* prev = place->prev_attribute_c;
place->prev_attribute_c->next_attribute = attr;
if (prev->next_attribute)
prev->next_attribute = attr;
else else
node->first_attribute = attr; node->first_attribute = attr;
attr->prev_attribute_c = place->prev_attribute_c; attr->prev_attribute_c = prev;
attr->next_attribute = place; attr->next_attribute = place;
place->prev_attribute_c = attr; place->prev_attribute_c = attr;
} }
inline void remove_attribute(xml_attribute_struct* attr, xml_node_struct* node) inline void remove_attribute(xml_attribute_struct* attr, xml_node_struct* node)
{ {
if (attr->next_attribute) xml_attribute_struct* next = attr->next_attribute;
attr->next_attribute->prev_attribute_c = attr->prev_attribute_c; xml_attribute_struct* prev = attr->prev_attribute_c;
else
node->first_attribute->prev_attribute_c = attr->prev_attribute_c;
if (attr->prev_attribute_c->next_attribute) if (next)
attr->prev_attribute_c->next_attribute = attr->next_attribute; next->prev_attribute_c = prev;
else else
node->first_attribute = attr->next_attribute; node->first_attribute->prev_attribute_c = prev;
if (prev->next_attribute)
prev->next_attribute = next;
else
node->first_attribute = next;
attr->prev_attribute_c = 0; attr->prev_attribute_c = 0;
attr->next_attribute = 0; attr->next_attribute = 0;