TODO#139894 [ footer -最下方說明與保經代合作 ] 文案修改

HelenHuang

2022-06-09 9bdb95c9e34cef640534e5e5a1e2225a80442000

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/*
    MIT License http://www.opensource.org/licenses/mit-license.php
    Author Tobias Koppers @sokra
*/
"use strict";
 
const base64VLQ = require("./base64-vlq");
const getNumberOfLines = require("./helpers").getNumberOfLines;
const getUnfinishedLine = require("./helpers").getUnfinishedLine;
 
const LINE_MAPPING = ";AAAA";
 
class SingleLineNode {
 
    constructor(generatedCode, source, originalSource, line) {
        this.generatedCode = generatedCode;
        this.originalSource = originalSource;
        this.source = source;
        this.line = line || 1;
        this._numberOfLines = getNumberOfLines(this.generatedCode);
        this._endsWithNewLine = generatedCode[generatedCode.length - 1] === "\n";
    }
 
    clone() {
        return new SingleLineNode(this.generatedCode, this.source, this.originalSource, this.line);
    }
 
    getGeneratedCode() {
        return this.generatedCode;
    }
 
    getMappings(mappingsContext) {
        if(!this.generatedCode)
            return "";
        const lines = this._numberOfLines;
        const sourceIdx = mappingsContext.ensureSource(this.source, this.originalSource);
        let mappings = "A"; // generated column 0
        if(mappingsContext.unfinishedGeneratedLine)
            mappings = "," + base64VLQ.encode(mappingsContext.unfinishedGeneratedLine);
        mappings += base64VLQ.encode(sourceIdx - mappingsContext.currentSource); // source index
        mappings += base64VLQ.encode(this.line - mappingsContext.currentOriginalLine); // original line index
        mappings += "A"; // original column 0
        mappingsContext.currentSource = sourceIdx;
        mappingsContext.currentOriginalLine = this.line;
        const unfinishedGeneratedLine = mappingsContext.unfinishedGeneratedLine = getUnfinishedLine(this.generatedCode)
        mappings += Array(lines).join(LINE_MAPPING);
        if(unfinishedGeneratedLine === 0) {
            mappings += ";";
        } else {
            if(lines !== 0)
                mappings += LINE_MAPPING;
        }
        return mappings;
    }
 
    getNormalizedNodes() {
        return [this];
    }
 
    mapGeneratedCode(fn) {
        const generatedCode = fn(this.generatedCode);
        return new SingleLineNode(generatedCode, this.source, this.originalSource, this.line);
    }
 
    merge(otherNode) {
        if(otherNode instanceof SingleLineNode) {
            return this.mergeSingleLineNode(otherNode);
        }
        return false;
    }
 
    mergeSingleLineNode(otherNode) {
        if(this.source === otherNode.source &&
            this.originalSource === otherNode.originalSource) {
            if(this.line === otherNode.line) {
                this.generatedCode += otherNode.generatedCode;
                this._numberOfLines += otherNode._numberOfLines;
                this._endsWithNewLine = otherNode._endsWithNewLine;
                return this;
            } else if(this.line + 1 === otherNode.line && 
                this._endsWithNewLine &&
                this._numberOfLines === 1 && 
                otherNode._numberOfLines <= 1) {
                return new SourceNode(this.generatedCode + otherNode.generatedCode, this.source, this.originalSource, this.line);
            }
        }
        return false;
    }
}
 
module.exports = SingleLineNode;
 
const SourceNode = require("./SourceNode"); // circular dependency