You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
94 lines
2.9 KiB
94 lines
2.9 KiB
2 years ago
|
/*
|
||
|
|
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
|