third_party/v8/tools/turbolizer/src/disassembly-view.ts - cobalt - Git at Google

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.

 import { PROF_COLS, UNICODE_BLOCK } from "../src/constants";
 import { SelectionBroker } from "../src/selection-broker";
 import { TextView } from "../src/text-view";
 import { MySelection } from "./selection";
 import { anyToString, interpolate } from "./util";
 import { InstructionSelectionHandler } from "./selection-handler";

 const toolboxHTML = `<div id="disassembly-toolbox">
 <form>
   <label><input id="show-instruction-address" type="checkbox" name="instruction-address">Show addresses</label>
   <label><input id="show-instruction-binary" type="checkbox" name="instruction-binary">Show binary literal</label>
   <label><input id="highlight-gap-instructions" type="checkbox" name="instruction-binary">Highlight gap instructions</label>
 </form>
 </div>`;

 export class DisassemblyView extends TextView {
   SOURCE_POSITION_HEADER_REGEX: any;
   addrEventCounts: any;
   totalEventCounts: any;
   maxEventCounts: any;
   posLines: Array<any>;
   instructionSelectionHandler: InstructionSelectionHandler;
   offsetSelection: MySelection;
   showInstructionAddressHandler: () => void;
   showInstructionBinaryHandler: () => void;
   highlightGapInstructionsHandler: () => void;

   createViewElement() {
     const pane = document.createElement('div');
     pane.setAttribute('id', "disassembly");
     pane.innerHTML =
       `<pre id='disassembly-text-pre' class='prettyprint prettyprinted'>
        <ul class='disassembly-list nolinenums noindent'>
        </ul>
      </pre>`;

     return pane;
   }

   constructor(parentId, broker: SelectionBroker) {
     super(parentId, broker);
     const view = this;
     const ADDRESS_STYLE = {
       associateData: (text, fragment: HTMLElement) => {
         const matches = text.match(/(?<address>0?x?[0-9a-fA-F]{8,16})(?<addressSpace>\s+)(?<offset>[0-9a-f]+)(?<offsetSpace>\s*)/);
         const offset = Number.parseInt(matches.groups["offset"], 16);
         const instructionKind = view.sourceResolver.getInstructionKindForPCOffset(offset);
         fragment.dataset.instructionKind = instructionKind;
         fragment.title = view.sourceResolver.instructionKindToReadableName(instructionKind);
         const blockIds = view.sourceResolver.getBlockIdsForOffset(offset);
         const blockIdElement = document.createElement("SPAN");
         blockIdElement.className = "block-id com linkable-text";
         blockIdElement.innerText = "";
         if (blockIds && blockIds.length > 0) {
           blockIds.forEach(blockId => view.addHtmlElementForBlockId(blockId, fragment));
           blockIdElement.innerText = `B${blockIds.join(",")}:`;
           blockIdElement.dataset.blockId = `${blockIds.join(",")}`;
         }
         fragment.appendChild(blockIdElement);
         const addressElement = document.createElement("SPAN");
         addressElement.className = "instruction-address";
         addressElement.innerText = matches.groups["address"];
         const offsetElement = document.createElement("SPAN");
         offsetElement.innerText = matches.groups["offset"];
         fragment.appendChild(addressElement);
         fragment.appendChild(document.createTextNode(matches.groups["addressSpace"]));
         fragment.appendChild(offsetElement);
         fragment.appendChild(document.createTextNode(matches.groups["offsetSpace"]));
         fragment.classList.add('tag');

         if (!Number.isNaN(offset)) {
           let pcOffset = view.sourceResolver.getKeyPcOffset(offset);
           if (pcOffset == -1) pcOffset = Number(offset);
           fragment.dataset.pcOffset = `${pcOffset}`;
           addressElement.classList.add('linkable-text');
           offsetElement.classList.add('linkable-text');
         }
         return true;
       }
     };
     const UNCLASSIFIED_STYLE = {
       css: 'com'
     };
     const NUMBER_STYLE = {
       css: ['instruction-binary', 'lit']
     };
     const COMMENT_STYLE = {
       css: 'com'
     };
     const OPCODE_ARGS = {
       associateData: function (text, fragment) {
         fragment.innerHTML = text;
         const replacer = (match, hexOffset) => {
           const offset = Number.parseInt(hexOffset, 16);
           let keyOffset = view.sourceResolver.getKeyPcOffset(offset);
           if (keyOffset == -1) keyOffset = Number(offset);
           const blockIds = view.sourceResolver.getBlockIdsForOffset(offset);
           let block = "";
           let blockIdData = "";
           if (blockIds && blockIds.length > 0) {
             block = `B${blockIds.join(",")} `;
             blockIdData = `data-block-id="${blockIds.join(",")}"`;
           }
           return `<span class="tag linkable-text" data-pc-offset="${keyOffset}" ${blockIdData}>${block}${match}</span>`;
         };
         const html = text.replace(/<.0?x?([0-9a-fA-F]+)>/g, replacer);
         fragment.innerHTML = html;
         return true;
       }
     };
     const OPCODE_STYLE = {
       css: 'kwd'
     };
     const BLOCK_HEADER_STYLE = {
       associateData: function (text, fragment) {
         if (view.sourceResolver.hasBlockStartInfo()) return false;
         const matches = /\d+/.exec(text);
         if (!matches) return true;
         const blockId = matches[0];
         fragment.dataset.blockId = blockId;
         fragment.innerHTML = text;
         fragment.className = "com block";
         return true;
       }
     };
     const SOURCE_POSITION_HEADER_STYLE = {
       css: 'com'
     };
     view.SOURCE_POSITION_HEADER_REGEX = /^\s*--[^<]*<.*(not inlined|inlined\((\d+)\)):(\d+)>\s*--/;
     const patterns = [
       [
         [/^0?x?[0-9a-fA-F]{8,16}\s+[0-9a-f]+\s+/, ADDRESS_STYLE, 1],
         [view.SOURCE_POSITION_HEADER_REGEX, SOURCE_POSITION_HEADER_STYLE, -1],
         [/^\s+-- B\d+ start.*/, BLOCK_HEADER_STYLE, -1],
         [/^.*/, UNCLASSIFIED_STYLE, -1]
       ],
       [
         [/^\s*[0-9a-f]+\s+/, NUMBER_STYLE, 2],
         [/^\s*[0-9a-f]+\s+[0-9a-f]+\s+/, NUMBER_STYLE, 2],
         [/^.*/, null, -1]
       ],
       [
         [/^REX.W \S+\s+/, OPCODE_STYLE, 3],
         [/^\S+\s+/, OPCODE_STYLE, 3],
         [/^\S+$/, OPCODE_STYLE, -1],
         [/^.*/, null, -1]
       ],
       [
         [/^\s+/, null],
         [/^[^;]+$/, OPCODE_ARGS, -1],
         [/^[^;]+/, OPCODE_ARGS, 4],
         [/^;/, COMMENT_STYLE, 5]
       ],
       [
         [/^.+$/, COMMENT_STYLE, -1]
       ]
     ];
     view.setPatterns(patterns);

     const linkHandler = (e: MouseEvent) => {
       if (!(e.target instanceof HTMLElement)) return;
       const offsetAsString = typeof e.target.dataset.pcOffset != "undefined" ? e.target.dataset.pcOffset : e.target.parentElement.dataset.pcOffset;
       const offset = Number.parseInt(offsetAsString, 10);
       if ((typeof offsetAsString) != "undefined" && !Number.isNaN(offset)) {
         view.offsetSelection.select([offset], true);
         const nodes = view.sourceResolver.nodesForPCOffset(offset)[0];
         if (nodes.length > 0) {
           e.stopPropagation();
           if (!e.shiftKey) {
             view.selectionHandler.clear();
           }
           view.selectionHandler.select(nodes, true);
         } else {
           view.updateSelection();
         }
       }
       return undefined;
     };
     view.divNode.addEventListener('click', linkHandler);

     const linkHandlerBlock = e => {
       const blockId = e.target.dataset.blockId;
       if (typeof blockId != "undefined") {
         const blockIds = blockId.split(",");
         if (!e.shiftKey) {
           view.selectionHandler.clear();
         }
         view.blockSelectionHandler.select(blockIds, true);
       }
     };
     view.divNode.addEventListener('click', linkHandlerBlock);

     this.offsetSelection = new MySelection(anyToString);
     const instructionSelectionHandler = {
       clear: function () {
         view.offsetSelection.clear();
         view.updateSelection();
         broker.broadcastClear(instructionSelectionHandler);
       },
       select: function (instructionIds, selected) {
         view.offsetSelection.select(instructionIds, selected);
         view.updateSelection();
         broker.broadcastBlockSelect(instructionSelectionHandler, instructionIds, selected);
       },
       brokeredInstructionSelect: function (instructionIds, selected) {
         const firstSelect = view.offsetSelection.isEmpty();
         const keyPcOffsets = view.sourceResolver.instructionsToKeyPcOffsets(instructionIds);
         view.offsetSelection.select(keyPcOffsets, selected);
         view.updateSelection(firstSelect);
       },
       brokeredClear: function () {
         view.offsetSelection.clear();
         view.updateSelection();
       }
     };
     this.instructionSelectionHandler = instructionSelectionHandler;
     broker.addInstructionHandler(instructionSelectionHandler);

     const toolbox = document.createElement("div");
     toolbox.id = "toolbox-anchor";
     toolbox.innerHTML = toolboxHTML;
     view.divNode.insertBefore(toolbox, view.divNode.firstChild);
     const instructionAddressInput: HTMLInputElement = view.divNode.querySelector("#show-instruction-address");
     const lastShowInstructionAddress = window.sessionStorage.getItem("show-instruction-address");
     instructionAddressInput.checked = lastShowInstructionAddress == 'true';
     const showInstructionAddressHandler = () => {
       window.sessionStorage.setItem("show-instruction-address", `${instructionAddressInput.checked}`);
       for (const el of view.divNode.querySelectorAll(".instruction-address")) {
         el.classList.toggle("invisible", !instructionAddressInput.checked);
       }
     };
     instructionAddressInput.addEventListener("change", showInstructionAddressHandler);
     this.showInstructionAddressHandler = showInstructionAddressHandler;

     const instructionBinaryInput: HTMLInputElement = view.divNode.querySelector("#show-instruction-binary");
     const lastShowInstructionBinary = window.sessionStorage.getItem("show-instruction-binary");
     instructionBinaryInput.checked = lastShowInstructionBinary == 'true';
     const showInstructionBinaryHandler = () => {
       window.sessionStorage.setItem("show-instruction-binary", `${instructionBinaryInput.checked}`);
       for (const el of view.divNode.querySelectorAll(".instruction-binary")) {
         el.classList.toggle("invisible", !instructionBinaryInput.checked);
       }
     };
     instructionBinaryInput.addEventListener("change", showInstructionBinaryHandler);
     this.showInstructionBinaryHandler = showInstructionBinaryHandler;

     const highlightGapInstructionsInput: HTMLInputElement = view.divNode.querySelector("#highlight-gap-instructions");
     const lastHighlightGapInstructions = window.sessionStorage.getItem("highlight-gap-instructions");
     highlightGapInstructionsInput.checked = lastHighlightGapInstructions == 'true';
     const highlightGapInstructionsHandler = () => {
       window.sessionStorage.setItem("highlight-gap-instructions", `${highlightGapInstructionsInput.checked}`);
       view.divNode.classList.toggle("highlight-gap-instructions", highlightGapInstructionsInput.checked);
     };

     highlightGapInstructionsInput.addEventListener("change", highlightGapInstructionsHandler);
     this.highlightGapInstructionsHandler = highlightGapInstructionsHandler;
   }

   updateSelection(scrollIntoView: boolean = false) {
     super.updateSelection(scrollIntoView);
     const keyPcOffsets = this.sourceResolver.nodesToKeyPcOffsets(this.selection.selectedKeys());
     if (this.offsetSelection) {
       for (const key of this.offsetSelection.selectedKeys()) {
         keyPcOffsets.push(Number(key));
       }
     }
     for (const keyPcOffset of keyPcOffsets) {
       const elementsToSelect = this.divNode.querySelectorAll(`[data-pc-offset='${keyPcOffset}']`);
       for (const el of elementsToSelect) {
         el.classList.toggle("selected", true);
       }
     }
   }

   initializeCode(sourceText, sourcePosition: number = 0) {
     const view = this;
     view.addrEventCounts = null;
     view.totalEventCounts = null;
     view.maxEventCounts = null;
     view.posLines = new Array();
     // Comment lines for line 0 include sourcePosition already, only need to
     // add sourcePosition for lines > 0.
     view.posLines[0] = sourcePosition;
     if (sourceText && sourceText != "") {
       const base = sourcePosition;
       let current = 0;
       const sourceLines = sourceText.split("\n");
       for (let i = 1; i < sourceLines.length; i++) {
         // Add 1 for newline character that is split off.
         current += sourceLines[i - 1].length + 1;
         view.posLines[i] = base + current;
       }
     }
   }

   initializePerfProfile(eventCounts) {
     const view = this;
     if (eventCounts !== undefined) {
       view.addrEventCounts = eventCounts;

       view.totalEventCounts = {};
       view.maxEventCounts = {};
       for (const evName in view.addrEventCounts) {
         if (view.addrEventCounts.hasOwnProperty(evName)) {
           const keys = Object.keys(view.addrEventCounts[evName]);
           const values = keys.map(key => view.addrEventCounts[evName][key]);
           view.totalEventCounts[evName] = values.reduce((a, b) => a + b);
           view.maxEventCounts[evName] = values.reduce((a, b) => Math.max(a, b));
         }
       }
     } else {
       view.addrEventCounts = null;
       view.totalEventCounts = null;
       view.maxEventCounts = null;
     }
   }

   showContent(data): void {
     console.time("disassembly-view");
     super.initializeContent(data, null);
     this.showInstructionAddressHandler();
     this.showInstructionBinaryHandler();
     this.highlightGapInstructionsHandler();
     console.timeEnd("disassembly-view");
   }

   // Shorten decimals and remove trailing zeroes for readability.
   humanize(num) {
     return num.toFixed(3).replace(/\.?0+$/, "") + "%";
   }

   processLine(line) {
     const view = this;
     let fragments = super.processLine(line);

     // Add profiling data per instruction if available.
     if (view.totalEventCounts) {
       const matches = /^(0x[0-9a-fA-F]+)\s+\d+\s+[0-9a-fA-F]+/.exec(line);
       if (matches) {
         const newFragments = [];
         for (const event in view.addrEventCounts) {
           if (!view.addrEventCounts.hasOwnProperty(event)) continue;
           const count = view.addrEventCounts[event][matches[1]];
           let str = " ";
           const cssCls = "prof";
           if (count !== undefined) {
             const perc = count / view.totalEventCounts[event] * 100;

             let col = { r: 255, g: 255, b: 255 };
             for (let i = 0; i < PROF_COLS.length; i++) {
               if (perc === PROF_COLS[i].perc) {
                 col = PROF_COLS[i].col;
                 break;
               } else if (perc > PROF_COLS[i].perc && perc < PROF_COLS[i + 1].perc) {
                 const col1 = PROF_COLS[i].col;
                 const col2 = PROF_COLS[i + 1].col;

                 const val = perc - PROF_COLS[i].perc;
                 const max = PROF_COLS[i + 1].perc - PROF_COLS[i].perc;

                 col.r = Math.round(interpolate(val, max, col1.r, col2.r));
                 col.g = Math.round(interpolate(val, max, col1.g, col2.g));
                 col.b = Math.round(interpolate(val, max, col1.b, col2.b));
                 break;
               }
             }

             str = UNICODE_BLOCK;

             const fragment = view.createFragment(str, cssCls);
             fragment.title = event + ": " + view.humanize(perc) + " (" + count + ")";
             fragment.style.color = "rgb(" + col.r + ", " + col.g + ", " + col.b + ")";

             newFragments.push(fragment);
           } else {
             newFragments.push(view.createFragment(str, cssCls));
           }
         }
         fragments = newFragments.concat(fragments);
       }
     }
     return fragments;
   }

   detachSelection() { return null; }

   public searchInputAction(searchInput: HTMLInputElement, e: Event, onlyVisible: boolean): void {
     throw new Error("Method not implemented.");
   }
 }
	// Copyright 2015 the V8 project authors. All rights reserved.
	// Use of this source code is governed by a BSD-style license that can be
	// found in the LICENSE file.

	import { PROF_COLS, UNICODE_BLOCK } from "../src/constants";
	import { SelectionBroker } from "../src/selection-broker";
	import { TextView } from "../src/text-view";
	import { MySelection } from "./selection";
	import { anyToString, interpolate } from "./util";
	import { InstructionSelectionHandler } from "./selection-handler";

	const toolboxHTML = `<div id="disassembly-toolbox">
	<form>
	<label><input id="show-instruction-address" type="checkbox" name="instruction-address">Show addresses</label>
	<label><input id="show-instruction-binary" type="checkbox" name="instruction-binary">Show binary literal</label>
	<label><input id="highlight-gap-instructions" type="checkbox" name="instruction-binary">Highlight gap instructions</label>
	</form>
	</div>`;

	export class DisassemblyView extends TextView {
	SOURCE_POSITION_HEADER_REGEX: any;
	addrEventCounts: any;
	totalEventCounts: any;
	maxEventCounts: any;
	posLines: Array<any>;
	instructionSelectionHandler: InstructionSelectionHandler;
	offsetSelection: MySelection;
	showInstructionAddressHandler: () => void;
	showInstructionBinaryHandler: () => void;
	highlightGapInstructionsHandler: () => void;

	createViewElement() {
	const pane = document.createElement('div');
	pane.setAttribute('id', "disassembly");
	pane.innerHTML =
	`<pre id='disassembly-text-pre' class='prettyprint prettyprinted'>
	<ul class='disassembly-list nolinenums noindent'>
	</ul>
	</pre>`;

	return pane;
	}

	constructor(parentId, broker: SelectionBroker) {
	super(parentId, broker);
	const view = this;
	const ADDRESS_STYLE = {
	associateData: (text, fragment: HTMLElement) => {
	const matches = text.match(/(?<address>0?x?[0-9a-fA-F]{8,16})(?<addressSpace>\s+)(?<offset>[0-9a-f]+)(?<offsetSpace>\s*)/);
	const offset = Number.parseInt(matches.groups["offset"], 16);
	const instructionKind = view.sourceResolver.getInstructionKindForPCOffset(offset);
	fragment.dataset.instructionKind = instructionKind;
	fragment.title = view.sourceResolver.instructionKindToReadableName(instructionKind);
	const blockIds = view.sourceResolver.getBlockIdsForOffset(offset);
	const blockIdElement = document.createElement("SPAN");
	blockIdElement.className = "block-id com linkable-text";
	blockIdElement.innerText = "";
	if (blockIds && blockIds.length > 0) {
	blockIds.forEach(blockId => view.addHtmlElementForBlockId(blockId, fragment));
	blockIdElement.innerText = `B${blockIds.join(",")}:`;
	blockIdElement.dataset.blockId = `${blockIds.join(",")}`;
	}
	fragment.appendChild(blockIdElement);
	const addressElement = document.createElement("SPAN");
	addressElement.className = "instruction-address";
	addressElement.innerText = matches.groups["address"];
	const offsetElement = document.createElement("SPAN");
	offsetElement.innerText = matches.groups["offset"];
	fragment.appendChild(addressElement);
	fragment.appendChild(document.createTextNode(matches.groups["addressSpace"]));
	fragment.appendChild(offsetElement);
	fragment.appendChild(document.createTextNode(matches.groups["offsetSpace"]));
	fragment.classList.add('tag');

	if (!Number.isNaN(offset)) {
	let pcOffset = view.sourceResolver.getKeyPcOffset(offset);
	if (pcOffset == -1) pcOffset = Number(offset);
	fragment.dataset.pcOffset = `${pcOffset}`;
	addressElement.classList.add('linkable-text');
	offsetElement.classList.add('linkable-text');
	}
	return true;
	}
	};
	const UNCLASSIFIED_STYLE = {
	css: 'com'
	};
	const NUMBER_STYLE = {
	css: ['instruction-binary', 'lit']
	};
	const COMMENT_STYLE = {
	css: 'com'
	};
	const OPCODE_ARGS = {
	associateData: function (text, fragment) {
	fragment.innerHTML = text;
	const replacer = (match, hexOffset) => {
	const offset = Number.parseInt(hexOffset, 16);
	let keyOffset = view.sourceResolver.getKeyPcOffset(offset);
	if (keyOffset == -1) keyOffset = Number(offset);
	const blockIds = view.sourceResolver.getBlockIdsForOffset(offset);
	let block = "";
	let blockIdData = "";
	if (blockIds && blockIds.length > 0) {
	block = `B${blockIds.join(",")} `;
	blockIdData = `data-block-id="${blockIds.join(",")}"`;
	}
	return `<span class="tag linkable-text" data-pc-offset="${keyOffset}" ${blockIdData}>${block}${match}</span>`;
	};
	const html = text.replace(/<.0?x?([0-9a-fA-F]+)>/g, replacer);
	fragment.innerHTML = html;
	return true;
	}
	};
	const OPCODE_STYLE = {
	css: 'kwd'
	};
	const BLOCK_HEADER_STYLE = {
	associateData: function (text, fragment) {
	if (view.sourceResolver.hasBlockStartInfo()) return false;
	const matches = /\d+/.exec(text);
	if (!matches) return true;
	const blockId = matches[0];
	fragment.dataset.blockId = blockId;
	fragment.innerHTML = text;
	fragment.className = "com block";
	return true;
	}
	};
	const SOURCE_POSITION_HEADER_STYLE = {
	css: 'com'
	};
	view.SOURCE_POSITION_HEADER_REGEX = /^\s--[^<]<.(not inlined\|inlined\((\d+)\)):(\d+)>\s--/;
	const patterns = [
	[
	[/^0?x?[0-9a-fA-F]{8,16}\s+[0-9a-f]+\s+/, ADDRESS_STYLE, 1],
	[view.SOURCE_POSITION_HEADER_REGEX, SOURCE_POSITION_HEADER_STYLE, -1],
	[/^\s+-- B\d+ start.*/, BLOCK_HEADER_STYLE, -1],
	[/^.*/, UNCLASSIFIED_STYLE, -1]
	],
	[
	[/^\s*[0-9a-f]+\s+/, NUMBER_STYLE, 2],
	[/^\s*[0-9a-f]+\s+[0-9a-f]+\s+/, NUMBER_STYLE, 2],
	[/^.*/, null, -1]
	],
	[
	[/^REX.W \S+\s+/, OPCODE_STYLE, 3],
	[/^\S+\s+/, OPCODE_STYLE, 3],
	[/^\S+$/, OPCODE_STYLE, -1],
	[/^.*/, null, -1]
	],
	[
	[/^\s+/, null],
	[/^[^;]+$/, OPCODE_ARGS, -1],
	[/^[^;]+/, OPCODE_ARGS, 4],
	[/^;/, COMMENT_STYLE, 5]
	],
	[
	[/^.+$/, COMMENT_STYLE, -1]
	]
	];
	view.setPatterns(patterns);

	const linkHandler = (e: MouseEvent) => {
	if (!(e.target instanceof HTMLElement)) return;
	const offsetAsString = typeof e.target.dataset.pcOffset != "undefined" ? e.target.dataset.pcOffset : e.target.parentElement.dataset.pcOffset;
	const offset = Number.parseInt(offsetAsString, 10);
	if ((typeof offsetAsString) != "undefined" && !Number.isNaN(offset)) {
	view.offsetSelection.select([offset], true);
	const nodes = view.sourceResolver.nodesForPCOffset(offset)[0];
	if (nodes.length > 0) {
	e.stopPropagation();
	if (!e.shiftKey) {
	view.selectionHandler.clear();
	}
	view.selectionHandler.select(nodes, true);
	} else {
	view.updateSelection();
	}
	}
	return undefined;
	};
	view.divNode.addEventListener('click', linkHandler);

	const linkHandlerBlock = e => {
	const blockId = e.target.dataset.blockId;
	if (typeof blockId != "undefined") {
	const blockIds = blockId.split(",");
	if (!e.shiftKey) {
	view.selectionHandler.clear();
	}
	view.blockSelectionHandler.select(blockIds, true);
	}
	};
	view.divNode.addEventListener('click', linkHandlerBlock);

	this.offsetSelection = new MySelection(anyToString);
	const instructionSelectionHandler = {
	clear: function () {
	view.offsetSelection.clear();
	view.updateSelection();
	broker.broadcastClear(instructionSelectionHandler);
	},
	select: function (instructionIds, selected) {
	view.offsetSelection.select(instructionIds, selected);
	view.updateSelection();
	broker.broadcastBlockSelect(instructionSelectionHandler, instructionIds, selected);
	},
	brokeredInstructionSelect: function (instructionIds, selected) {
	const firstSelect = view.offsetSelection.isEmpty();
	const keyPcOffsets = view.sourceResolver.instructionsToKeyPcOffsets(instructionIds);
	view.offsetSelection.select(keyPcOffsets, selected);
	view.updateSelection(firstSelect);
	},
	brokeredClear: function () {
	view.offsetSelection.clear();
	view.updateSelection();
	}
	};
	this.instructionSelectionHandler = instructionSelectionHandler;
	broker.addInstructionHandler(instructionSelectionHandler);

	const toolbox = document.createElement("div");
	toolbox.id = "toolbox-anchor";
	toolbox.innerHTML = toolboxHTML;
	view.divNode.insertBefore(toolbox, view.divNode.firstChild);
	const instructionAddressInput: HTMLInputElement = view.divNode.querySelector("#show-instruction-address");
	const lastShowInstructionAddress = window.sessionStorage.getItem("show-instruction-address");
	instructionAddressInput.checked = lastShowInstructionAddress == 'true';
	const showInstructionAddressHandler = () => {
	window.sessionStorage.setItem("show-instruction-address", `${instructionAddressInput.checked}`);
	for (const el of view.divNode.querySelectorAll(".instruction-address")) {
	el.classList.toggle("invisible", !instructionAddressInput.checked);
	}
	};
	instructionAddressInput.addEventListener("change", showInstructionAddressHandler);
	this.showInstructionAddressHandler = showInstructionAddressHandler;

	const instructionBinaryInput: HTMLInputElement = view.divNode.querySelector("#show-instruction-binary");
	const lastShowInstructionBinary = window.sessionStorage.getItem("show-instruction-binary");
	instructionBinaryInput.checked = lastShowInstructionBinary == 'true';
	const showInstructionBinaryHandler = () => {
	window.sessionStorage.setItem("show-instruction-binary", `${instructionBinaryInput.checked}`);
	for (const el of view.divNode.querySelectorAll(".instruction-binary")) {
	el.classList.toggle("invisible", !instructionBinaryInput.checked);
	}
	};
	instructionBinaryInput.addEventListener("change", showInstructionBinaryHandler);
	this.showInstructionBinaryHandler = showInstructionBinaryHandler;

	const highlightGapInstructionsInput: HTMLInputElement = view.divNode.querySelector("#highlight-gap-instructions");
	const lastHighlightGapInstructions = window.sessionStorage.getItem("highlight-gap-instructions");
	highlightGapInstructionsInput.checked = lastHighlightGapInstructions == 'true';
	const highlightGapInstructionsHandler = () => {
	window.sessionStorage.setItem("highlight-gap-instructions", `${highlightGapInstructionsInput.checked}`);
	view.divNode.classList.toggle("highlight-gap-instructions", highlightGapInstructionsInput.checked);
	};

	highlightGapInstructionsInput.addEventListener("change", highlightGapInstructionsHandler);
	this.highlightGapInstructionsHandler = highlightGapInstructionsHandler;
	}

	updateSelection(scrollIntoView: boolean = false) {
	super.updateSelection(scrollIntoView);
	const keyPcOffsets = this.sourceResolver.nodesToKeyPcOffsets(this.selection.selectedKeys());
	if (this.offsetSelection) {
	for (const key of this.offsetSelection.selectedKeys()) {
	keyPcOffsets.push(Number(key));
	}
	}
	for (const keyPcOffset of keyPcOffsets) {
	const elementsToSelect = this.divNode.querySelectorAll(`[data-pc-offset='${keyPcOffset}']`);
	for (const el of elementsToSelect) {
	el.classList.toggle("selected", true);
	}
	}
	}

	initializeCode(sourceText, sourcePosition: number = 0) {
	const view = this;
	view.addrEventCounts = null;
	view.totalEventCounts = null;
	view.maxEventCounts = null;
	view.posLines = new Array();
	// Comment lines for line 0 include sourcePosition already, only need to
	// add sourcePosition for lines > 0.
	view.posLines[0] = sourcePosition;
	if (sourceText && sourceText != "") {
	const base = sourcePosition;
	let current = 0;
	const sourceLines = sourceText.split("\n");
	for (let i = 1; i < sourceLines.length; i++) {
	// Add 1 for newline character that is split off.
	current += sourceLines[i - 1].length + 1;
	view.posLines[i] = base + current;
	}
	}
	}

	initializePerfProfile(eventCounts) {
	const view = this;
	if (eventCounts !== undefined) {
	view.addrEventCounts = eventCounts;

	view.totalEventCounts = {};
	view.maxEventCounts = {};
	for (const evName in view.addrEventCounts) {
	if (view.addrEventCounts.hasOwnProperty(evName)) {
	const keys = Object.keys(view.addrEventCounts[evName]);
	const values = keys.map(key => view.addrEventCounts[evName][key]);
	view.totalEventCounts[evName] = values.reduce((a, b) => a + b);
	view.maxEventCounts[evName] = values.reduce((a, b) => Math.max(a, b));
	}
	}
	} else {
	view.addrEventCounts = null;
	view.totalEventCounts = null;
	view.maxEventCounts = null;
	}
	}

	showContent(data): void {
	console.time("disassembly-view");
	super.initializeContent(data, null);
	this.showInstructionAddressHandler();
	this.showInstructionBinaryHandler();
	this.highlightGapInstructionsHandler();
	console.timeEnd("disassembly-view");
	}

	// Shorten decimals and remove trailing zeroes for readability.
	humanize(num) {
	return num.toFixed(3).replace(/\.?0+$/, "") + "%";
	}

	processLine(line) {
	const view = this;
	let fragments = super.processLine(line);

	// Add profiling data per instruction if available.
	if (view.totalEventCounts) {
	const matches = /^(0x[0-9a-fA-F]+)\s+\d+\s+[0-9a-fA-F]+/.exec(line);
	if (matches) {
	const newFragments = [];
	for (const event in view.addrEventCounts) {
	if (!view.addrEventCounts.hasOwnProperty(event)) continue;
	const count = view.addrEventCounts[event][matches[1]];
	let str = " ";
	const cssCls = "prof";
	if (count !== undefined) {
	const perc = count / view.totalEventCounts[event] * 100;

	let col = { r: 255, g: 255, b: 255 };
	for (let i = 0; i < PROF_COLS.length; i++) {
	if (perc === PROF_COLS[i].perc) {
	col = PROF_COLS[i].col;
	break;
	} else if (perc > PROF_COLS[i].perc && perc < PROF_COLS[i + 1].perc) {
	const col1 = PROF_COLS[i].col;
	const col2 = PROF_COLS[i + 1].col;

	const val = perc - PROF_COLS[i].perc;
	const max = PROF_COLS[i + 1].perc - PROF_COLS[i].perc;

	col.r = Math.round(interpolate(val, max, col1.r, col2.r));
	col.g = Math.round(interpolate(val, max, col1.g, col2.g));
	col.b = Math.round(interpolate(val, max, col1.b, col2.b));
	break;
	}
	}

	str = UNICODE_BLOCK;

	const fragment = view.createFragment(str, cssCls);
	fragment.title = event + ": " + view.humanize(perc) + " (" + count + ")";
	fragment.style.color = "rgb(" + col.r + ", " + col.g + ", " + col.b + ")";

	newFragments.push(fragment);
	} else {
	newFragments.push(view.createFragment(str, cssCls));
	}
	}
	fragments = newFragments.concat(fragments);
	}
	}
	return fragments;
	}

	detachSelection() { return null; }

	public searchInputAction(searchInput: HTMLInputElement, e: Event, onlyVisible: boolean): void {
	throw new Error("Method not implemented.");
	}
	}