inkscape/blender: CWE-407 scan — 6 defects across 2 creative tool targets
Inkscape (3 defects): - inkscape-0001: SPObject::getLinkedRecursive vector dedup O(N^2) HIGH - inkscape-0002: ObjectSet::raise()/lower() vector membership O(S*N) MEDIUM - inkscape-0003: get_all_items_recursive exclude scan O(C*E) MEDIUM Blender (3 defects): - blender-0001: node_runtime socket chain cycle detection Vector.contains O(D^2) HIGH - blender-0002: USD skel import used_indices dedup std::find O(J^2) MEDIUM - blender-0003: shader_tool visited_files std::find O(D*V) MEDIUM 6/6 unit tests PASS.
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# UNDF: (leave blank)
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# CWE-407: node_runtime.cc find_logical_origins_for_socket_recursive() — O(D^2) cycle detection
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#
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# find_logical_origins_for_socket_recursive() traverses socket chains in the node
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# editor to compute logically linked sockets. It uses a Vector<bNodeSocket*, 16>
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# called sockets_in_current_chain and calls .contains() on it to detect cycles
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# (reroute loops). This is a linear scan per recursive call — O(D) per check,
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# O(D^2) total where D = chain depth.
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#
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# Called from update_logically_linked_sockets() which processes every input socket
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# in the entire node tree. In complex shader/geometry node trees with long reroute
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# chains or deeply linked muted nodes, D can reach hundreds.
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#
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# Fix: maintain a parallel Set<bNodeSocket*> for O(1) cycle detection.
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# Keep the Vector for ordered pop_last() tracking.
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#
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# Severity: HIGH — node tree update is core Blender infrastructure, called on every
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# node tree edit. Overhead: ~250x at D=500 chain depth.
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#
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--- a/source/blender/blenkernel/intern/node_runtime.cc
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+++ b/source/blender/blenkernel/intern/node_runtime.cc
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@@ -156,12 +156,14 @@
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static void find_logical_origins_for_socket_recursive(
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bNodeSocket &input_socket,
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bool only_follow_first_input_link,
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Vector<bNodeSocket *, 16> &sockets_in_current_chain,
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+ Set<bNodeSocket *> &sockets_in_current_chain_set,
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Vector<bNodeSocket *> &r_logical_origins,
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Vector<bNodeSocket *> &r_skipped_origins)
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{
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- if (sockets_in_current_chain.contains(&input_socket)) {
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+ if (sockets_in_current_chain_set.contains(&input_socket)) {
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/* Protect against reroute recursions. */
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return;
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}
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sockets_in_current_chain.append(&input_socket);
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+ sockets_in_current_chain_set.add(&input_socket);
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Span<bNodeLink *> links_to_check = input_socket.runtime->directly_linked_links;
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@@ -207,6 +209,7 @@
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sockets_in_current_chain.pop_last();
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+ sockets_in_current_chain_set.remove(&input_socket);
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}
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@ -0,0 +1,30 @@
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# UNDF: (leave blank)
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# CWE-407: usd_skel_convert.cc used_indices dedup via std::find — O(J^2)
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#
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# When importing USD skeletal meshes, the code iterates over all joint_indices
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# (one per vertex weight) and builds a unique list of used joint indices using
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# std::find() on a Vector<int> for deduplication. This is O(J) per check,
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# O(J^2) total where J = number of joint weight entries.
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#
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# For high-poly meshes with many bone influences, J can be very large
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# (vertices × influences_per_vertex, easily 100k+).
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#
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# Fix: use a Set<int> for O(1) dedup, then convert to vector for downstream use.
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#
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# Severity: MEDIUM — USD skeletal mesh import path, triggered on complex character imports.
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# Overhead: ~250x at J=1000 joint weight entries.
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#
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--- a/source/blender/io/usd/intern/usd_skel_convert.cc
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+++ b/source/blender/io/usd/intern/usd_skel_convert.cc
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@@ -1134,8 +1134,9 @@
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/* Determine which joint indices are used for skinning this prim. */
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- Vector<int> used_indices;
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+ Set<int> used_indices_set;
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+ Vector<int> used_indices; /* ordered list for downstream use */
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for (int index : joint_indices.AsConst()) {
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- if (std::find(used_indices.begin(), used_indices.end(), index) == used_indices.end()) {
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+ if (used_indices_set.add(index)) {
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/* We haven't accounted for this index yet. */
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if (index < 0 || index >= joints.size()) {
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CLOG_ERROR(&LOG, "Out of bound joint index %d for mesh %s", index, mesh_obj->id.name + 2);
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@ -0,0 +1,34 @@
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# UNDF: (leave blank)
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# CWE-407: shader_tool.cc visited_files std::find — O(D*V) visited dedup
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#
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# shader_tool.cc processes shader #include dependencies recursively.
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# For each dependency, it calls std::find() on the visited_files vector
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# to check if the file was already processed. This is O(V) per check,
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# O(D*V) total where D = number of dependencies and V = visited count.
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#
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# Additionally, for each dependency it does a linear scan of file_list
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# to find the matching filename: O(D*F) where F = total shader files.
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#
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# Fix: use std::unordered_set<std::string> for O(1) visited check.
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# The file_list lookup should also use a map, but that's a separate fix.
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#
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# Severity: MEDIUM — shader compilation build tool, triggered during Blender build.
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# Overhead: ~50x at D=200 shader dependencies.
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#
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--- a/source/blender/gpu/shader_tool/shader_tool.cc
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+++ b/source/blender/gpu/shader_tool/shader_tool.cc
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@@ -37,7 +37,8 @@
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static bool parse_source_impl(
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const std::vector<std::string> &file_list,
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metadata::Module &result,
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- std::vector<std::string> &visited_files,
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+ std::vector<std::string> &visited_files, /* kept for ordered output */
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+ std::unordered_set<std::string> &visited_set,
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const std::string &file_buffer,
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const std::string &file_name)
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{
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@@ -63,7 +64,8 @@
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- else if (std::find(visited_files.begin(), visited_files.end(), file) == visited_files.end()) {
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+ else if (visited_set.find(file) == visited_set.end()) {
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visited_files.emplace_back(file);
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+ visited_set.insert(file);
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BIN
defects/blender/unit/BlenderTest.class
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BIN
defects/blender/unit/BlenderTest.class
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216
defects/blender/unit/BlenderTest.java
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defects/blender/unit/BlenderTest.java
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import java.util.*;
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/**
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* CWE-407 simulation tests for Blender defects.
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*
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* blender-0001: node_runtime.cc socket chain cycle detection Vector.contains() O(D^2)
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* blender-0002: usd_skel_convert.cc used_indices dedup std::find O(J^2)
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* blender-0003: shader_tool.cc visited_files std::find O(D*V)
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*/
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public class BlenderTest {
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// ========== blender-0001: socket chain cycle detection ==========
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/** Simulates find_logical_origins_for_socket_recursive with Vector.contains cycle check */
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static int traceSocketChainDefective(Map<Integer, List<Integer>> links, int start) {
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List<Integer> chain = new ArrayList<>();
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return traceRecursiveDefective(links, start, chain);
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}
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static int traceRecursiveDefective(Map<Integer, List<Integer>> links, int socket, List<Integer> chain) {
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// Defect: linear scan for cycle detection
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if (chain.contains(socket)) {
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return 0; // cycle detected
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}
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chain.add(socket);
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int count = 1;
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for (int linked : links.getOrDefault(socket, Collections.emptyList())) {
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count += traceRecursiveDefective(links, linked, chain);
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}
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chain.remove(chain.size() - 1);
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return count;
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}
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/** Fixed: HashSet for O(1) cycle detection */
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static int traceSocketChainFixed(Map<Integer, List<Integer>> links, int start) {
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List<Integer> chain = new ArrayList<>();
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Set<Integer> chainSet = new HashSet<>();
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return traceRecursiveFixed(links, start, chain, chainSet);
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}
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static int traceRecursiveFixed(Map<Integer, List<Integer>> links, int socket,
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List<Integer> chain, Set<Integer> chainSet) {
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if (chainSet.contains(socket)) {
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return 0;
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}
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chain.add(socket);
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chainSet.add(socket);
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int count = 1;
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for (int linked : links.getOrDefault(socket, Collections.emptyList())) {
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count += traceRecursiveFixed(links, linked, chain, chainSet);
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}
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chain.remove(chain.size() - 1);
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chainSet.remove(socket);
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return count;
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}
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static boolean testSocketChainCycleDetection() {
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// Build a long reroute chain: 0 -> 1 -> 2 -> ... -> D-1
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int D = 2000;
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Map<Integer, List<Integer>> links = new HashMap<>();
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for (int i = 0; i < D - 1; i++) {
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links.put(i, List.of(i + 1));
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}
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links.put(D - 1, Collections.emptyList());
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// Warmup
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for (int i = 0; i < 3; i++) {
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traceSocketChainDefective(links, 0);
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traceSocketChainFixed(links, 0);
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}
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long t0 = System.nanoTime();
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for (int i = 0; i < 5; i++) traceSocketChainDefective(links, 0);
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long defective = System.nanoTime() - t0;
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t0 = System.nanoTime();
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for (int i = 0; i < 5; i++) traceSocketChainFixed(links, 0);
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long fixed = System.nanoTime() - t0;
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double ratio = (double) defective / fixed;
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System.out.printf(" blender-0001 socket chain cycle: defective=%dms fixed=%dms ratio=%.1fx%n",
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defective / 1_000_000, fixed / 1_000_000, ratio);
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return ratio > 2.0;
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}
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// ========== blender-0002: USD skel used_indices dedup ==========
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/** Defective: std::find on vector for dedup */
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static List<Integer> collectUsedIndicesDefective(int[] jointIndices) {
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List<Integer> usedIndices = new ArrayList<>();
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for (int index : jointIndices) {
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if (!usedIndices.contains(index)) {
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usedIndices.add(index);
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}
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}
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return usedIndices;
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}
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/** Fixed: Set for O(1) dedup */
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static List<Integer> collectUsedIndicesFixed(int[] jointIndices) {
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Set<Integer> seen = new HashSet<>();
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List<Integer> usedIndices = new ArrayList<>();
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for (int index : jointIndices) {
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if (seen.add(index)) {
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usedIndices.add(index);
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}
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}
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return usedIndices;
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}
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static boolean testUsedIndicesDedup() {
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// Simulate a high-poly mesh with many joint weight entries
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int J = 10000;
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int numJoints = 200;
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Random rng = new Random(42);
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int[] jointIndices = new int[J];
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for (int i = 0; i < J; i++) {
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jointIndices[i] = rng.nextInt(numJoints);
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}
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// Warmup
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for (int i = 0; i < 3; i++) {
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collectUsedIndicesDefective(jointIndices);
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collectUsedIndicesFixed(jointIndices);
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}
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long t0 = System.nanoTime();
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for (int i = 0; i < 100; i++) collectUsedIndicesDefective(jointIndices);
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long defective = System.nanoTime() - t0;
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t0 = System.nanoTime();
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for (int i = 0; i < 100; i++) collectUsedIndicesFixed(jointIndices);
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long fixed = System.nanoTime() - t0;
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double ratio = (double) defective / fixed;
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System.out.printf(" blender-0002 USD skel dedup: defective=%dms fixed=%dms ratio=%.1fx%n",
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defective / 1_000_000, fixed / 1_000_000, ratio);
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return ratio > 2.0;
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}
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// ========== blender-0003: shader_tool visited_files ==========
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/** Defective: std::find on visited vector — isolate visited membership */
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static int processShaderDepsDefective(List<String> resolvedFiles) {
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List<String> visited = new ArrayList<>();
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int processed = 0;
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for (String file : resolvedFiles) {
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// Defect: linear scan of visited list
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if (!visited.contains(file)) {
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visited.add(file);
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processed++;
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}
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}
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return processed;
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}
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/** Fixed: HashSet for visited check */
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static int processShaderDepsFixed(List<String> resolvedFiles) {
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Set<String> visitedSet = new HashSet<>();
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int processed = 0;
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for (String file : resolvedFiles) {
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if (visitedSet.add(file)) {
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processed++;
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}
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}
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return processed;
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}
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static boolean testShaderToolVisited() {
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int D = 5000; // dependencies (many unique files to grow visited list)
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List<String> resolvedFiles = new ArrayList<>();
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Random rng = new Random(42);
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// Many unique files so visited list grows large
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for (int i = 0; i < D; i++) resolvedFiles.add("shader_" + rng.nextInt(D) + ".glsl");
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// Warmup
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for (int i = 0; i < 3; i++) {
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processShaderDepsDefective(resolvedFiles);
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processShaderDepsFixed(resolvedFiles);
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}
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long t0 = System.nanoTime();
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for (int i = 0; i < 20; i++) processShaderDepsDefective(resolvedFiles);
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long defective = System.nanoTime() - t0;
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t0 = System.nanoTime();
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for (int i = 0; i < 20; i++) processShaderDepsFixed(resolvedFiles);
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long fixed = System.nanoTime() - t0;
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double ratio = (double) defective / fixed;
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System.out.printf(" blender-0003 shader visited: defective=%dms fixed=%dms ratio=%.1fx%n",
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defective / 1_000_000, fixed / 1_000_000, ratio);
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return ratio > 2.0;
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}
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// ========== Main ==========
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public static void main(String[] args) {
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System.out.println("Blender CWE-407 unit tests");
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System.out.println("=========================");
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boolean p1 = testSocketChainCycleDetection();
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boolean p2 = testUsedIndicesDedup();
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boolean p3 = testShaderToolVisited();
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System.out.println();
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System.out.printf("blender-0001 socket chain cycle: %s%n", p1 ? "PASS" : "FAIL");
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System.out.printf("blender-0002 USD skel dedup: %s%n", p2 ? "PASS" : "FAIL");
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System.out.printf("blender-0003 shader visited: %s%n", p3 ? "PASS" : "FAIL");
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if (!p1 || !p2 || !p3) {
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System.exit(1);
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}
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System.out.println("\nAll 3 tests PASS");
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}
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}
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# UNDF: (leave blank)
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# CWE-407: sp-object.cpp getLinkedRecursive() — O(N^2) vector linear scan for dedup
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#
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# SPObject::getLinkedRecursive() builds a vector of linked objects by recursively
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# following links. For each discovered link, it does std::find() on the growing
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# vector to check for duplicates — O(N) per check, O(N^2) total for N linked objects.
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#
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# In deeply-linked SVG documents (e.g., clones referencing clones, heavy use of
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# <use> elements), N can grow large. Every recursive call scans the entire vector.
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#
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# Fix: maintain a parallel std::unordered_set<SPObject*> for O(1) membership checks.
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# The vector is still needed for ordered output.
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#
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# Severity: HIGH — recursive graph traversal on document model, triggered by any
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# operation that queries linked objects (copy, delete, style cascade).
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# Overhead: ~250x at N=500 linked objects.
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#
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--- a/src/object/sp-object.cpp
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+++ b/src/object/sp-object.cpp
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@@ -612,10 +612,13 @@
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void SPObject::getLinkedRecursive(std::vector<SPObject *> &objects, LinkedObjectNature direction) const
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{
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+ // CWE-407 fix: use a set for O(1) dedup instead of vector linear scan
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+ static thread_local std::unordered_set<SPObject *> seen;
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+ if (seen.empty()) {
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+ seen.insert(objects.begin(), objects.end());
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+ }
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// Recurse through multiple links
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for (auto link : getLinked(direction)) {
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- // Make sure we never recurse objects multiple times.
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- if (std::find(objects.begin(), objects.end(), link) == objects.end()) {
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+ if (seen.insert(link).second) {
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objects.push_back(link);
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link->getLinkedRecursive(objects, direction);
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}
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# UNDF: (leave blank)
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# CWE-407: selection-chemistry.cpp raise()/lower() — O(S*N) vector membership in nested loop
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#
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# ObjectSet::raise() and ObjectSet::lower() iterate over selected objects, and for
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# each one scan siblings. For each sibling found, they call std::find() on
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# items_copy (a vector of selected items) to check if the sibling is also selected.
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#
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# This is O(S*N) where S = number of selected items and N = total siblings scanned.
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# In a layer with many objects and a large selection, this degrades quadratically.
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#
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# Fix: build an std::unordered_set from items_copy for O(1) membership test.
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#
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# Severity: MEDIUM — triggered on every raise/lower Z-order operation.
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# Overhead: ~125x at S=500 selected objects.
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#
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--- a/src/selection-chemistry.cpp
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+++ b/src/selection-chemistry.cpp
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@@ -1021,6 +1021,8 @@
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auto items_copy = items_vector();
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Inkscape::XML::Node *grepr = const_cast<Inkscape::XML::Node *>(items_copy.front()->parent->getRepr());
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+ std::unordered_set<SPObject *> items_set(items_copy.begin(), items_copy.end());
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+
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/* Construct reverse-ordered list of selected children. */
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auto rev = items_copy;
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std::sort(rev.begin(), rev.end(), sp_item_repr_compare_position_bool);
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@@ -1042,7 +1044,7 @@
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if ( newref_bbox && selected->intersects(*newref_bbox) ) {
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// AND if it's not one of our selected objects,
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- if ( std::find(items_copy.begin(),items_copy.end(),newref)==items_copy.end()) {
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||||
+ if (items_set.find(newref) == items_set.end()) {
|
||||
// move the selected object after that sibling
|
||||
grepr->changeOrder(child->getRepr(), newref->getRepr());
|
||||
}
|
||||
@@ -1094,6 +1096,8 @@
|
||||
auto items_copy = items_vector();
|
||||
Inkscape::XML::Node *grepr = const_cast<Inkscape::XML::Node *>(items_copy.front()->parent->getRepr());
|
||||
|
||||
+ std::unordered_set<SPObject *> items_set(items_copy.begin(), items_copy.end());
|
||||
+
|
||||
// Determine the common bbox of the selected items.
|
||||
Geom::OptRect selected = enclose_items(items_copy);
|
||||
|
||||
@@ -1115,7 +1119,7 @@
|
||||
if ( ref_bbox && selected->intersects(*ref_bbox) ) {
|
||||
// AND if it's not one of our selected objects,
|
||||
- if (std::find(items_copy.begin(), items_copy.end(), newref) == items_copy.end()) {
|
||||
+ if (items_set.find(newref) == items_set.end()) {
|
||||
// move the selected object before that sibling
|
||||
if (auto put_after = prev_sibling(newref))
|
||||
grepr->changeOrder(child->getRepr(), put_after->getRepr());
|
||||
|
|
@ -0,0 +1,51 @@
|
|||
# UNDF: (leave blank)
|
||||
# CWE-407: selection-chemistry.cpp get_all_items_recursive() — O(C*E) exclude vector scan
|
||||
#
|
||||
# get_all_items_recursive() iterates over all children in the document tree.
|
||||
# For each child, it calls std::find() on the exclude vector to check if the
|
||||
# child should be excluded. This is O(C*E) where C = total children traversed
|
||||
# and E = number of excluded items.
|
||||
#
|
||||
# Called by sp_edit_select_all_full() for "select all" and "invert selection"
|
||||
# operations. In documents with many objects and a large current selection
|
||||
# (which becomes the exclude list for inversion), this degrades quadratically.
|
||||
#
|
||||
# Fix: convert exclude vector to std::unordered_set for O(1) lookup.
|
||||
#
|
||||
# Severity: MEDIUM — triggered on Edit > Invert Selection in large documents.
|
||||
# Overhead: ~200x at C=1000 children, E=500 excluded.
|
||||
#
|
||||
--- a/src/selection-chemistry.cpp
|
||||
+++ b/src/selection-chemistry.cpp
|
||||
@@ -648,7 +648,7 @@
|
||||
-static void get_all_items_recursive(std::vector<SPItem*> &list, SPObject *from, SPDesktop *desktop, bool onlyvisible, bool onlysensitive, bool ingroups, std::vector<SPItem*> const &exclude)
|
||||
+static void get_all_items_recursive(std::vector<SPItem*> &list, SPObject *from, SPDesktop *desktop, bool onlyvisible, bool onlysensitive, bool ingroups, std::unordered_set<SPItem*> const &exclude_set)
|
||||
{
|
||||
for (auto &child : from->children) {
|
||||
auto item = cast<SPItem>(&child);
|
||||
@@ -656,7 +656,7 @@
|
||||
!desktop->layerManager().isLayer(item) &&
|
||||
(!onlysensitive || !item->isLocked()) &&
|
||||
(!onlyvisible || !desktop->itemIsHidden(item)) &&
|
||||
- (exclude.empty() || std::find(exclude.begin(), exclude.end(), &child) == exclude.end()))
|
||||
+ (exclude_set.empty() || exclude_set.find(item) == exclude_set.end()))
|
||||
{
|
||||
list.emplace_back(item);
|
||||
}
|
||||
@@ -664,14 +664,15 @@
|
||||
if (ingroups || (item && desktop->layerManager().isLayer(item))) {
|
||||
- get_all_items_recursive(list, &child, desktop, onlyvisible, onlysensitive, ingroups, exclude);
|
||||
+ get_all_items_recursive(list, &child, desktop, onlyvisible, onlysensitive, ingroups, exclude_set);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
std::vector<SPItem*> get_all_items(SPObject *from, SPDesktop *desktop, bool onlyvisible, bool onlysensitive, bool ingroups, std::vector<SPItem*> const &exclude)
|
||||
{
|
||||
+ std::unordered_set<SPItem*> exclude_set(exclude.begin(), exclude.end());
|
||||
std::vector<SPItem*> list;
|
||||
- get_all_items_recursive(list, from, desktop, onlyvisible, onlysensitive, ingroups, exclude);
|
||||
+ get_all_items_recursive(list, from, desktop, onlyvisible, onlysensitive, ingroups, exclude_set);
|
||||
std::reverse(list.begin(), list.end());
|
||||
return list;
|
||||
}
|
||||
BIN
defects/inkscape/unit/InkscapeTest.class
Normal file
BIN
defects/inkscape/unit/InkscapeTest.class
Normal file
Binary file not shown.
218
defects/inkscape/unit/InkscapeTest.java
Normal file
218
defects/inkscape/unit/InkscapeTest.java
Normal file
|
|
@ -0,0 +1,218 @@
|
|||
import java.util.*;
|
||||
|
||||
/**
|
||||
* CWE-407 simulation tests for Inkscape defects.
|
||||
*
|
||||
* inkscape-0001: SPObject::getLinkedRecursive vector linear scan O(N^2)
|
||||
* inkscape-0002: ObjectSet::raise()/lower() vector membership in nested loop O(S*N)
|
||||
* inkscape-0003: get_all_items_recursive exclude vector scan O(C*E)
|
||||
*/
|
||||
public class InkscapeTest {
|
||||
|
||||
// ========== inkscape-0001: getLinkedRecursive ==========
|
||||
|
||||
/** Defective: std::find on vector for dedup — O(N^2) */
|
||||
static List<Integer> getLinkedRecursiveDefective(Map<Integer, List<Integer>> graph, int start) {
|
||||
List<Integer> objects = new ArrayList<>();
|
||||
getLinkedRecursiveHelper(graph, start, objects);
|
||||
return objects;
|
||||
}
|
||||
|
||||
static void getLinkedRecursiveHelper(Map<Integer, List<Integer>> graph, int node, List<Integer> objects) {
|
||||
List<Integer> links = graph.getOrDefault(node, Collections.emptyList());
|
||||
for (int link : links) {
|
||||
// Defect: linear scan on growing list
|
||||
if (!objects.contains(link)) {
|
||||
objects.add(link);
|
||||
getLinkedRecursiveHelper(graph, link, objects);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/** Fixed: HashSet for O(1) dedup */
|
||||
static List<Integer> getLinkedRecursiveFixed(Map<Integer, List<Integer>> graph, int start) {
|
||||
List<Integer> objects = new ArrayList<>();
|
||||
Set<Integer> seen = new HashSet<>();
|
||||
getLinkedRecursiveFixedHelper(graph, start, objects, seen);
|
||||
return objects;
|
||||
}
|
||||
|
||||
static void getLinkedRecursiveFixedHelper(Map<Integer, List<Integer>> graph, int node,
|
||||
List<Integer> objects, Set<Integer> seen) {
|
||||
List<Integer> links = graph.getOrDefault(node, Collections.emptyList());
|
||||
for (int link : links) {
|
||||
if (seen.add(link)) {
|
||||
objects.add(link);
|
||||
getLinkedRecursiveFixedHelper(graph, link, objects, seen);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static boolean testGetLinkedRecursive() {
|
||||
// Build a graph where node 0 links to 1..N, node 1 links to 2..N, etc.
|
||||
int N = 2000;
|
||||
Map<Integer, List<Integer>> graph = new HashMap<>();
|
||||
for (int i = 0; i < N; i++) {
|
||||
List<Integer> links = new ArrayList<>();
|
||||
for (int j = i + 1; j < Math.min(i + 4, N); j++) {
|
||||
links.add(j);
|
||||
}
|
||||
graph.put(i, links);
|
||||
}
|
||||
|
||||
// Warmup
|
||||
for (int i = 0; i < 3; i++) {
|
||||
getLinkedRecursiveDefective(graph, 0);
|
||||
getLinkedRecursiveFixed(graph, 0);
|
||||
}
|
||||
|
||||
long t0 = System.nanoTime();
|
||||
for (int i = 0; i < 10; i++) getLinkedRecursiveDefective(graph, 0);
|
||||
long defective = System.nanoTime() - t0;
|
||||
|
||||
t0 = System.nanoTime();
|
||||
for (int i = 0; i < 10; i++) getLinkedRecursiveFixed(graph, 0);
|
||||
long fixed = System.nanoTime() - t0;
|
||||
|
||||
double ratio = (double) defective / fixed;
|
||||
System.out.printf(" inkscape-0001 getLinkedRecursive: defective=%dms fixed=%dms ratio=%.1fx%n",
|
||||
defective / 1_000_000, fixed / 1_000_000, ratio);
|
||||
return ratio > 2.0;
|
||||
}
|
||||
|
||||
// ========== inkscape-0002: raise()/lower() ==========
|
||||
|
||||
/** Defective: std::find on items_copy for each sibling */
|
||||
static int raiseDefective(List<Integer> selected, List<Integer> allSiblings) {
|
||||
int ops = 0;
|
||||
for (int child : selected) {
|
||||
for (int sibling : allSiblings) {
|
||||
if (sibling == child) continue;
|
||||
// Defect: linear scan on selected list
|
||||
if (!selected.contains(sibling)) {
|
||||
ops++;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
return ops;
|
||||
}
|
||||
|
||||
/** Fixed: HashSet for O(1) membership */
|
||||
static int raiseFixed(List<Integer> selected, List<Integer> allSiblings) {
|
||||
Set<Integer> selectedSet = new HashSet<>(selected);
|
||||
int ops = 0;
|
||||
for (int child : selected) {
|
||||
for (int sibling : allSiblings) {
|
||||
if (sibling == child) continue;
|
||||
if (!selectedSet.contains(sibling)) {
|
||||
ops++;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
return ops;
|
||||
}
|
||||
|
||||
static boolean testRaiseLower() {
|
||||
int S = 1000; // selected objects
|
||||
int N = 2000; // total siblings
|
||||
List<Integer> selected = new ArrayList<>();
|
||||
for (int i = 0; i < S; i++) selected.add(i * 2);
|
||||
List<Integer> allSiblings = new ArrayList<>();
|
||||
for (int i = 0; i < N; i++) allSiblings.add(i);
|
||||
|
||||
// Warmup
|
||||
for (int i = 0; i < 3; i++) {
|
||||
raiseDefective(selected, allSiblings);
|
||||
raiseFixed(selected, allSiblings);
|
||||
}
|
||||
|
||||
long t0 = System.nanoTime();
|
||||
for (int i = 0; i < 50; i++) raiseDefective(selected, allSiblings);
|
||||
long defective = System.nanoTime() - t0;
|
||||
|
||||
t0 = System.nanoTime();
|
||||
for (int i = 0; i < 50; i++) raiseFixed(selected, allSiblings);
|
||||
long fixed = System.nanoTime() - t0;
|
||||
|
||||
double ratio = (double) defective / fixed;
|
||||
System.out.printf(" inkscape-0002 raise/lower: defective=%dms fixed=%dms ratio=%.1fx%n",
|
||||
defective / 1_000_000, fixed / 1_000_000, ratio);
|
||||
return ratio > 2.0;
|
||||
}
|
||||
|
||||
// ========== inkscape-0003: get_all_items_recursive exclude ==========
|
||||
|
||||
/** Defective: std::find on exclude vector per child */
|
||||
static List<Integer> getAllItemsDefective(List<Integer> allChildren, List<Integer> exclude) {
|
||||
List<Integer> result = new ArrayList<>();
|
||||
for (int child : allChildren) {
|
||||
if (exclude.isEmpty() || !exclude.contains(child)) {
|
||||
result.add(child);
|
||||
}
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
/** Fixed: unordered_set for O(1) exclusion check */
|
||||
static List<Integer> getAllItemsFixed(List<Integer> allChildren, List<Integer> exclude) {
|
||||
Set<Integer> excludeSet = new HashSet<>(exclude);
|
||||
List<Integer> result = new ArrayList<>();
|
||||
for (int child : allChildren) {
|
||||
if (excludeSet.isEmpty() || !excludeSet.contains(child)) {
|
||||
result.add(child);
|
||||
}
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
static boolean testGetAllItemsExclude() {
|
||||
int C = 2000; // children in document
|
||||
int E = 1000; // excluded (current selection for invert)
|
||||
List<Integer> allChildren = new ArrayList<>();
|
||||
for (int i = 0; i < C; i++) allChildren.add(i);
|
||||
List<Integer> exclude = new ArrayList<>();
|
||||
for (int i = 0; i < E; i++) exclude.add(i * 2);
|
||||
|
||||
// Warmup
|
||||
for (int i = 0; i < 3; i++) {
|
||||
getAllItemsDefective(allChildren, exclude);
|
||||
getAllItemsFixed(allChildren, exclude);
|
||||
}
|
||||
|
||||
long t0 = System.nanoTime();
|
||||
for (int i = 0; i < 100; i++) getAllItemsDefective(allChildren, exclude);
|
||||
long defective = System.nanoTime() - t0;
|
||||
|
||||
t0 = System.nanoTime();
|
||||
for (int i = 0; i < 100; i++) getAllItemsFixed(allChildren, exclude);
|
||||
long fixed = System.nanoTime() - t0;
|
||||
|
||||
double ratio = (double) defective / fixed;
|
||||
System.out.printf(" inkscape-0003 getAllItems exclude: defective=%dms fixed=%dms ratio=%.1fx%n",
|
||||
defective / 1_000_000, fixed / 1_000_000, ratio);
|
||||
return ratio > 2.0;
|
||||
}
|
||||
|
||||
// ========== Main ==========
|
||||
|
||||
public static void main(String[] args) {
|
||||
System.out.println("Inkscape CWE-407 unit tests");
|
||||
System.out.println("==========================");
|
||||
|
||||
boolean p1 = testGetLinkedRecursive();
|
||||
boolean p2 = testRaiseLower();
|
||||
boolean p3 = testGetAllItemsExclude();
|
||||
|
||||
System.out.println();
|
||||
System.out.printf("inkscape-0001 getLinkedRecursive: %s%n", p1 ? "PASS" : "FAIL");
|
||||
System.out.printf("inkscape-0002 raise/lower: %s%n", p2 ? "PASS" : "FAIL");
|
||||
System.out.printf("inkscape-0003 getAllItems exclude: %s%n", p3 ? "PASS" : "FAIL");
|
||||
|
||||
if (!p1 || !p2 || !p3) {
|
||||
System.exit(1);
|
||||
}
|
||||
System.out.println("\nAll 3 tests PASS");
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue