Minor tidying of Generator
This commit is contained in:
David Evans
parent
8cbdddec20
commit
5ecce9a6ab
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@ -12,15 +12,34 @@ define(() => {
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}
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}
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function removeElement(list, item) {
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const p = list.indexOf(item);
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if(p !== -1) {
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list.splice(p, 1);
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}
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}
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function lastElement(list) {
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return list[list.length - 1];
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}
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class AgentState {
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constructor(visible, locked = false) {
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this.visible = visible;
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this.locked = locked;
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}
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}
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const LOCKED_AGENT = new AgentState(false, true);
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const DEFAULT_AGENT = new AgentState(false);
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return class Generator {
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constructor() {
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this.agentStates = new Map();
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this.blockCount = 0;
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this.nesting = [];
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this.currentSection = null;
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this.currentNest = null;
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this.stageHandlers = {
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'agent define': this.handleAgentDefine.bind(this),
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@ -39,14 +58,8 @@ define(() => {
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}
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addColumnBounds(target, agentL, agentR, involvedAgents = []) {
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const oldL = target.indexOf(agentL);
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if(oldL !== -1) {
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target.splice(oldL, 1);
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}
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const oldR = target.indexOf(agentR);
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if(oldR !== -1) {
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target.splice(oldR, 1);
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}
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removeElement(target, agentL);
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removeElement(target, agentR);
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let indexL = 0;
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let indexR = target.length;
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@ -63,48 +76,41 @@ define(() => {
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target.splice(indexR + 1, 0, agentR);
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}
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addAgentMod(stageAgents, markVisible, mode) {
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if(stageAgents.length === 0) {
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return;
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}
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stageAgents.forEach((agent) => {
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const state = this.agentStates.get(agent);
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if(state) {
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state.visible = markVisible;
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} else {
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this.agentStates.set(agent, {
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visible: markVisible,
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locked: false,
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});
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}
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});
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const type = (markVisible ? 'agent begin' : 'agent end');
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const existing = lastElement(this.currentSection.stages) || {};
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if(existing.type === type && existing.mode === mode) {
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mergeSets(existing.agents, stageAgents);
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mergeSets(this.currentNest.agents, stageAgents);
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} else {
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this.addStage({
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type,
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agents: stageAgents,
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mode,
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});
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}
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}
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filterVis(stageAgents, visible, implicit = false) {
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return stageAgents.filter((agent) => {
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const state = this.agentStates.get(agent);
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if(!state) {
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return !visible;
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} else if(!state.locked) {
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return state.visible === visible;
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} else if(!implicit) {
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setAgentVis(agents, visible, mode, checked = false) {
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const filteredAgents = agents.filter((agent) => {
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const state = this.agentStates.get(agent) || DEFAULT_AGENT;
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if(state.locked) {
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if(checked) {
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throw new Error('Cannot modify agent ' + agent);
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} else {
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return false;
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}
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}
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return state.visible !== visible;
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});
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if(filteredAgents.length === 0) {
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return;
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}
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filteredAgents.forEach((agent) => {
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const state = this.agentStates.get(agent);
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if(state) {
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state.visible = visible;
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} else {
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this.agentStates.set(agent, new AgentState(visible));
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}
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});
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const type = (visible ? 'agent begin' : 'agent end');
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const existing = lastElement(this.currentSection.stages) || {};
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if(existing.type === type && existing.mode === mode) {
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mergeSets(existing.agents, filteredAgents);
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mergeSets(this.currentNest.agents, filteredAgents);
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} else {
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this.addStage({
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type,
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agents: filteredAgents,
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mode,
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});
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}
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}
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beginNested(mode, label, name) {
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@ -122,8 +128,8 @@ define(() => {
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leftColumn: name + '[',
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rightColumn: name + ']',
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};
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this.agentStates.set(name + '[', {visible: false, locked: true});
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this.agentStates.set(name + ']', {visible: false, locked: true});
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this.agentStates.set(name + '[', LOCKED_AGENT);
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this.agentStates.set(name + ']', LOCKED_AGENT);
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this.nesting.push(this.currentNest);
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return {agents, stages};
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@ -133,11 +139,11 @@ define(() => {
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}
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handleAgentBegin({agents, mode}) {
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this.addAgentMod(this.filterVis(agents, false), true, mode);
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this.setAgentVis(agents, true, mode, true);
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}
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handleAgentEnd({agents, mode}) {
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this.addAgentMod(this.filterVis(agents, true), false, mode);
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this.setAgentVis(agents, false, mode, true);
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}
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handleBlockBegin({mode, label}) {
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@ -182,11 +188,7 @@ define(() => {
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}
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handleUnknownStage(stage) {
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this.addAgentMod(
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this.filterVis(stage.agents, false, true),
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true,
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'box'
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);
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this.setAgentVis(stage.agents, true, 'box');
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this.addStage(stage);
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}
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@ -211,11 +213,7 @@ define(() => {
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throw new Error('Invalid block nesting');
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}
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this.addAgentMod(
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this.filterVis(globals.agents, true, true),
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false,
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meta.terminators || 'none'
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);
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this.setAgentVis(globals.agents, false, meta.terminators || 'none');
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this.addColumnBounds(
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globals.agents,
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