mirror of
https://github.com/gorhill/uBlock.git
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Log :style(...) cosmetic filters only when there is a match
Related issue: - https://github.com/uBlockOrigin/uBlock-issues/issues/627
This commit is contained in:
Raymond Hill
parent
1eba94da0b
commit
08c3f06160
@ -23,7 +23,7 @@
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/******************************************************************************/
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(function() {
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(( ) => {
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/******************************************************************************/
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@ -42,26 +42,16 @@ const simpleDeclarativeSet = new Set();
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let simpleDeclarativeStr;
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const complexDeclarativeSet = new Set();
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let complexDeclarativeStr;
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const declarativeStyleDict = new Map();
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let declarativeStyleStr;
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const proceduralDict = new Map();
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const exceptionDict = new Map();
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let exceptionStr;
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const nodesToProcess = new Set();
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let shouldProcessDeclarativeComplex = false;
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let shouldProcessProcedural = false;
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let shouldProcessExceptions = false;
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const loggedSelectors = new Set();
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/******************************************************************************/
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const shouldProcess = function() {
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return nodesToProcess.size !== 0 ||
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shouldProcessDeclarativeComplex ||
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shouldProcessProcedural ||
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shouldProcessExceptions;
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};
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/******************************************************************************/
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const processDeclarativeSimple = function(node, out) {
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if ( simpleDeclarativeSet.size === 0 ) { return; }
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if ( simpleDeclarativeStr === undefined ) {
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@ -108,6 +98,26 @@ const processDeclarativeComplex = function(out) {
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/******************************************************************************/
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const processDeclarativeStyle = function(out) {
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if ( declarativeStyleDict.size === 0 ) { return; }
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if ( declarativeStyleStr === undefined ) {
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declarativeStyleStr = Array.from(declarativeStyleDict.keys())
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.join(',\n');
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}
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if ( document.querySelector(declarativeStyleStr) === null ) { return; }
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for ( const [ selector, style ] of declarativeStyleDict ) {
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if ( document.querySelector(selector) === null ) { continue; }
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const raw = `##${selector}:style(${style})`;
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out.push(raw);
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declarativeStyleDict.delete(selector);
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declarativeStyleStr = undefined;
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loggedSelectors.add(raw);
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if ( declarativeStyleDict.size === 0 ) { return; }
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}
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};
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/******************************************************************************/
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const processProcedural = function(out) {
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if ( proceduralDict.size === 0 ) { return; }
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for ( const entry of proceduralDict ) {
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@ -137,33 +147,32 @@ const processExceptions = function(out) {
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/******************************************************************************/
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const processTimer = new vAPI.SafeAnimationFrame(() => {
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const processTimer = new vAPI.SafeAnimationFrame(( ) => {
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//console.time('dom logger/scanning for matches');
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processTimer.clear();
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const toLog = [];
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if ( nodesToProcess.size !== 0 && simpleDeclarativeSet.size !== 0 ) {
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if ( nodesToProcess.size === 0 ) { return; }
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if ( nodesToProcess.size !== 1 && nodesToProcess.has(document) ) {
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nodesToProcess.clear();
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nodesToProcess.add(document);
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}
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const toLog = [];
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if ( simpleDeclarativeSet.size !== 0 ) {
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for ( const node of nodesToProcess ) {
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processDeclarativeSimple(node, toLog);
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}
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nodesToProcess.clear();
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}
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if ( shouldProcessDeclarativeComplex ) {
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processDeclarativeComplex(toLog);
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shouldProcessDeclarativeComplex = false;
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}
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if ( shouldProcessProcedural ) {
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processDeclarativeStyle(toLog);
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processProcedural(toLog);
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shouldProcessProcedural = false;
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}
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if ( shouldProcessExceptions ) {
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processExceptions(toLog);
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shouldProcessExceptions = false;
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}
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nodesToProcess.clear();
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if ( toLog.length === 0 ) { return; }
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vAPI.messaging.send(
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'scriptlets',
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{
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@ -179,20 +188,13 @@ const processTimer = new vAPI.SafeAnimationFrame(() => {
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/******************************************************************************/
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const attributeObserver = new MutationObserver(mutations => {
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if ( simpleDeclarativeSet.size !== 0 ) {
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if ( nodesToProcess.has(document) ) { return; }
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for ( const mutation of mutations ) {
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const node = mutation.target;
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if ( node.nodeType !== 1 ) { continue; }
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nodesToProcess.add(node);
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}
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}
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if ( complexDeclarativeSet.size !== 0 ) {
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shouldProcessDeclarativeComplex = true;
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}
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if ( proceduralDict.size !== 0 ) {
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shouldProcessProcedural = true;
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}
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if ( shouldProcess() ) {
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if ( nodesToProcess.size !== 0 ) {
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processTimer.start(100);
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}
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});
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@ -202,13 +204,11 @@ const attributeObserver = new MutationObserver(mutations => {
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const handlers = {
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onFiltersetChanged: function(changes) {
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//console.time('dom logger/filterset changed');
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const simpleSizeBefore = simpleDeclarativeSet.size,
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complexSizeBefore = complexDeclarativeSet.size,
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logNow = [];
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for ( const entry of (changes.declarative || []) ) {
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for ( let selector of entry[0].split(',\n') ) {
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if ( entry[1] !== 'display:none!important;' ) {
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logNow.push(`##${selector}:style(${entry[1]})`);
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declarativeStyleDict.set(selector, entry[1]);
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declarativeStyleStr = undefined;
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continue;
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}
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if ( reHasPseudoClass.test(selector) ) {
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@ -226,23 +226,6 @@ const handlers = {
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}
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}
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}
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if ( logNow.length !== 0 ) {
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vAPI.messaging.send(
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'scriptlets',
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{
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what: 'logCosmeticFilteringData',
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frameURL: window.location.href,
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frameHostname: window.location.hostname,
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matchedSelectors: logNow
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}
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);
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}
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if ( simpleDeclarativeSet.size !== simpleSizeBefore ) {
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nodesToProcess.add(document.documentElement);
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}
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if ( complexDeclarativeSet.size !== complexSizeBefore ) {
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shouldProcessDeclarativeComplex = true;
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}
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if (
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Array.isArray(changes.procedural) &&
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changes.procedural.length !== 0
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@ -250,7 +233,6 @@ const handlers = {
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for ( const selector of changes.procedural ) {
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proceduralDict.set(selector.raw, selector);
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}
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shouldProcessProcedural = true;
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}
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if ( Array.isArray(changes.exceptions) ) {
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for ( const selector of changes.exceptions ) {
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@ -263,11 +245,10 @@ const handlers = {
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}
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}
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exceptionStr = undefined;
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shouldProcessExceptions = true;
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}
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if ( shouldProcess() ) {
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nodesToProcess.clear();
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nodesToProcess.add(document);
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processTimer.start(1);
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}
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//console.timeEnd('dom logger/filterset changed');
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},
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@ -281,24 +262,12 @@ const handlers = {
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},
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onDOMChanged: function(addedNodes) {
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// This is to guard against runaway job queue. I suspect this could
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// occur on slower devices.
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if ( simpleDeclarativeSet.size !== 0 ) {
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if ( nodesToProcess.has(document) ) { return; }
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for ( const node of addedNodes ) {
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if ( node.parentNode === null ) { continue; }
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nodesToProcess.add(node);
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}
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}
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if ( complexDeclarativeSet.size !== 0 ) {
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shouldProcessDeclarativeComplex = true;
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}
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if ( proceduralDict.size !== 0 ) {
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shouldProcessProcedural = true;
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}
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if ( exceptionDict.size !== 0 ) {
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shouldProcessExceptions = true;
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}
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if ( shouldProcess() ) {
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if ( nodesToProcess.size !== 0 ) {
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processTimer.start(100);
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}
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}
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