forked from zhurui/management
118 lines
3.6 KiB
JavaScript
118 lines
3.6 KiB
JavaScript
/*
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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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const CodeNode = require("./CodeNode");
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const SourceNode = require("./SourceNode");
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const MappingsContext = require("./MappingsContext");
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const getNumberOfLines = require("./helpers").getNumberOfLines;
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class SourceListMap {
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constructor(generatedCode, source, originalSource) {
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if(Array.isArray(generatedCode)) {
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this.children = generatedCode;
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} else {
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this.children = [];
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if(generatedCode || source)
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this.add(generatedCode, source, originalSource);
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}
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}
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add(generatedCode, source, originalSource) {
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if(typeof generatedCode === "string") {
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if(source) {
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this.children.push(new SourceNode(generatedCode, source, originalSource));
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} else if(this.children.length > 0 && this.children[this.children.length - 1] instanceof CodeNode) {
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this.children[this.children.length - 1].addGeneratedCode(generatedCode);
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} else {
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this.children.push(new CodeNode(generatedCode));
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}
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} else if(generatedCode.getMappings && generatedCode.getGeneratedCode) {
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this.children.push(generatedCode);
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} else if(generatedCode.children) {
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generatedCode.children.forEach(function(sln) {
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this.children.push(sln);
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}, this);
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} else {
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throw new Error("Invalid arguments to SourceListMap.protfotype.add: Expected string, Node or SourceListMap");
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}
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};
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preprend(generatedCode, source, originalSource) {
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if(typeof generatedCode === "string") {
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if(source) {
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this.children.unshift(new SourceNode(generatedCode, source, originalSource));
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} else if(this.children.length > 0 && this.children[this.children.length - 1].preprendGeneratedCode) {
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this.children[this.children.length - 1].preprendGeneratedCode(generatedCode);
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} else {
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this.children.unshift(new CodeNode(generatedCode));
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}
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} else if(generatedCode.getMappings && generatedCode.getGeneratedCode) {
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this.children.unshift(generatedCode);
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} else if(generatedCode.children) {
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generatedCode.children.slice().reverse().forEach(function(sln) {
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this.children.unshift(sln);
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}, this);
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} else {
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throw new Error("Invalid arguments to SourceListMap.protfotype.prerend: Expected string, Node or SourceListMap");
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}
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};
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mapGeneratedCode(fn) {
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const normalizedNodes = [];
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this.children.forEach(function(sln) {
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sln.getNormalizedNodes().forEach(function(newNode) {
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normalizedNodes.push(newNode);
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});
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});
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const optimizedNodes = [];
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normalizedNodes.forEach(function(sln) {
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sln = sln.mapGeneratedCode(fn);
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if(optimizedNodes.length === 0) {
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optimizedNodes.push(sln);
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} else {
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const last = optimizedNodes[optimizedNodes.length - 1];
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const mergedNode = last.merge(sln);
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if(mergedNode) {
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optimizedNodes[optimizedNodes.length - 1] = mergedNode;
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} else {
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optimizedNodes.push(sln);
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}
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}
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});
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return new SourceListMap(optimizedNodes);
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};
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toString() {
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return this.children.map(function(sln) {
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return sln.getGeneratedCode();
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}).join("");
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};
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toStringWithSourceMap(options) {
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const mappingsContext = new MappingsContext();
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const source = this.children.map(function(sln) {
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return sln.getGeneratedCode();
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}).join("");
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const mappings = this.children.map(function(sln) {
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return sln.getMappings(mappingsContext);
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}).join("");
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const arrays = mappingsContext.getArrays();
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return {
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source,
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map: {
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version: 3,
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file: options && options.file,
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sources: arrays.sources,
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sourcesContent: mappingsContext.hasSourceContent ? arrays.sourcesContent : undefined,
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mappings: mappings
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}
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};
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}
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}
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module.exports = SourceListMap;
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