StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
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76 lines
1.8 KiB
76 lines
1.8 KiB
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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var Source = require("./Source");
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var SourceNode = require("source-map").SourceNode;
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var REPLACE_REGEX = /\n(?=.|\s)/g;
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function cloneAndPrefix(node, prefix, append) {
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if(typeof node === "string") {
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var result = node.replace(REPLACE_REGEX, "\n" + prefix);
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if(append.length > 0) result = append.pop() + result;
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if(/\n$/.test(node)) append.push(prefix);
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return result;
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} else {
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var newNode = new SourceNode(
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node.line,
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node.column,
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node.source,
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node.children.map(function(node) {
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return cloneAndPrefix(node, prefix, append);
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}),
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node.name
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);
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newNode.sourceContents = node.sourceContents;
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return newNode;
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}
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};
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class PrefixSource extends Source {
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constructor(prefix, source) {
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super();
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this._source = source;
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this._prefix = prefix;
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}
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source() {
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var node = typeof this._source === "string" ? this._source : this._source.source();
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var prefix = this._prefix;
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return prefix + node.replace(REPLACE_REGEX, "\n" + prefix);
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}
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node(options) {
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var node = this._source.node(options);
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var append = [this._prefix];
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return new SourceNode(null, null, null, [
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cloneAndPrefix(node, this._prefix, append)
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]);
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}
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listMap(options) {
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var prefix = this._prefix;
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var map = this._source.listMap(options);
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return map.mapGeneratedCode(function(code) {
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return prefix + code.replace(REPLACE_REGEX, "\n" + prefix);
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});
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}
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updateHash(hash) {
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if(typeof this._source === "string")
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hash.update(this._source);
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else
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this._source.updateHash(hash);
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if(typeof this._prefix === "string")
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hash.update(this._prefix);
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else
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this._prefix.updateHash(hash);
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}
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}
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require("./SourceAndMapMixin")(PrefixSource.prototype);
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module.exports = PrefixSource;
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