Add packages to optimize svgs dynamically
These packages will be used to dynamically optimize SVG images
during the build.
R=jacktfranklin@chromium.org
Bug: 1216402
Change-Id: I04e95aa7d79c9d67beaf8a7861182c52b16b7d0f
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2939992
Reviewed-by: Jack Franklin <jacktfranklin@chromium.org>
Commit-Queue: Tim van der Lippe <tvanderlippe@chromium.org>
diff --git a/node_modules/css-tree/lib/lexer/trace.js b/node_modules/css-tree/lib/lexer/trace.js
new file mode 100644
index 0000000..3a45e53
--- /dev/null
+++ b/node_modules/css-tree/lib/lexer/trace.js
@@ -0,0 +1,79 @@
+function getTrace(node) {
+ function shouldPutToTrace(syntax) {
+ if (syntax === null) {
+ return false;
+ }
+
+ return (
+ syntax.type === 'Type' ||
+ syntax.type === 'Property' ||
+ syntax.type === 'Keyword'
+ );
+ }
+
+ function hasMatch(matchNode) {
+ if (Array.isArray(matchNode.match)) {
+ // use for-loop for better perfomance
+ for (var i = 0; i < matchNode.match.length; i++) {
+ if (hasMatch(matchNode.match[i])) {
+ if (shouldPutToTrace(matchNode.syntax)) {
+ result.unshift(matchNode.syntax);
+ }
+
+ return true;
+ }
+ }
+ } else if (matchNode.node === node) {
+ result = shouldPutToTrace(matchNode.syntax)
+ ? [matchNode.syntax]
+ : [];
+
+ return true;
+ }
+
+ return false;
+ }
+
+ var result = null;
+
+ if (this.matched !== null) {
+ hasMatch(this.matched);
+ }
+
+ return result;
+}
+
+function testNode(match, node, fn) {
+ var trace = getTrace.call(match, node);
+
+ if (trace === null) {
+ return false;
+ }
+
+ return trace.some(fn);
+}
+
+function isType(node, type) {
+ return testNode(this, node, function(matchNode) {
+ return matchNode.type === 'Type' && matchNode.name === type;
+ });
+}
+
+function isProperty(node, property) {
+ return testNode(this, node, function(matchNode) {
+ return matchNode.type === 'Property' && matchNode.name === property;
+ });
+}
+
+function isKeyword(node) {
+ return testNode(this, node, function(matchNode) {
+ return matchNode.type === 'Keyword';
+ });
+}
+
+module.exports = {
+ getTrace: getTrace,
+ isType: isType,
+ isProperty: isProperty,
+ isKeyword: isKeyword
+};