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							163 lines
						
					
					
						
							4.6 KiB
						
					
					
				| "use strict";
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| 
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| Object.defineProperty(exports, "__esModule", {
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|   value: true
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| });
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| exports.codeFrameColumns = codeFrameColumns;
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| exports.default = _default;
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| 
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| var _highlight = require("@babel/highlight");
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| 
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| let deprecationWarningShown = false;
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| 
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| function getDefs(chalk) {
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|   return {
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|     gutter: chalk.grey,
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|     marker: chalk.red.bold,
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|     message: chalk.red.bold
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|   };
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| }
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| 
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| const NEWLINE = /\r\n|[\n\r\u2028\u2029]/;
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| 
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| function getMarkerLines(loc, source, opts) {
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|   const startLoc = Object.assign({
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|     column: 0,
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|     line: -1
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|   }, loc.start);
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|   const endLoc = Object.assign({}, startLoc, loc.end);
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|   const {
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|     linesAbove = 2,
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|     linesBelow = 3
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|   } = opts || {};
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|   const startLine = startLoc.line;
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|   const startColumn = startLoc.column;
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|   const endLine = endLoc.line;
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|   const endColumn = endLoc.column;
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|   let start = Math.max(startLine - (linesAbove + 1), 0);
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|   let end = Math.min(source.length, endLine + linesBelow);
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| 
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|   if (startLine === -1) {
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|     start = 0;
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|   }
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| 
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|   if (endLine === -1) {
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|     end = source.length;
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|   }
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| 
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|   const lineDiff = endLine - startLine;
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|   const markerLines = {};
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| 
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|   if (lineDiff) {
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|     for (let i = 0; i <= lineDiff; i++) {
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|       const lineNumber = i + startLine;
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| 
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|       if (!startColumn) {
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|         markerLines[lineNumber] = true;
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|       } else if (i === 0) {
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|         const sourceLength = source[lineNumber - 1].length;
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|         markerLines[lineNumber] = [startColumn, sourceLength - startColumn + 1];
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|       } else if (i === lineDiff) {
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|         markerLines[lineNumber] = [0, endColumn];
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|       } else {
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|         const sourceLength = source[lineNumber - i].length;
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|         markerLines[lineNumber] = [0, sourceLength];
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|       }
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|     }
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|   } else {
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|     if (startColumn === endColumn) {
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|       if (startColumn) {
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|         markerLines[startLine] = [startColumn, 0];
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|       } else {
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|         markerLines[startLine] = true;
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|       }
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|     } else {
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|       markerLines[startLine] = [startColumn, endColumn - startColumn];
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|     }
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|   }
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| 
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|   return {
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|     start,
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|     end,
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|     markerLines
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|   };
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| }
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| 
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| function codeFrameColumns(rawLines, loc, opts = {}) {
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|   const highlighted = (opts.highlightCode || opts.forceColor) && (0, _highlight.shouldHighlight)(opts);
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|   const chalk = (0, _highlight.getChalk)(opts);
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|   const defs = getDefs(chalk);
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| 
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|   const maybeHighlight = (chalkFn, string) => {
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|     return highlighted ? chalkFn(string) : string;
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|   };
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| 
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|   const lines = rawLines.split(NEWLINE);
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|   const {
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|     start,
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|     end,
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|     markerLines
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|   } = getMarkerLines(loc, lines, opts);
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|   const hasColumns = loc.start && typeof loc.start.column === "number";
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|   const numberMaxWidth = String(end).length;
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|   const highlightedLines = highlighted ? (0, _highlight.default)(rawLines, opts) : rawLines;
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|   let frame = highlightedLines.split(NEWLINE, end).slice(start, end).map((line, index) => {
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|     const number = start + 1 + index;
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|     const paddedNumber = ` ${number}`.slice(-numberMaxWidth);
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|     const gutter = ` ${paddedNumber} |`;
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|     const hasMarker = markerLines[number];
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|     const lastMarkerLine = !markerLines[number + 1];
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| 
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|     if (hasMarker) {
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|       let markerLine = "";
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| 
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|       if (Array.isArray(hasMarker)) {
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|         const markerSpacing = line.slice(0, Math.max(hasMarker[0] - 1, 0)).replace(/[^\t]/g, " ");
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|         const numberOfMarkers = hasMarker[1] || 1;
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|         markerLine = ["\n ", maybeHighlight(defs.gutter, gutter.replace(/\d/g, " ")), " ", markerSpacing, maybeHighlight(defs.marker, "^").repeat(numberOfMarkers)].join("");
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| 
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|         if (lastMarkerLine && opts.message) {
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|           markerLine += " " + maybeHighlight(defs.message, opts.message);
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|         }
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|       }
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| 
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|       return [maybeHighlight(defs.marker, ">"), maybeHighlight(defs.gutter, gutter), line.length > 0 ? ` ${line}` : "", markerLine].join("");
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|     } else {
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|       return ` ${maybeHighlight(defs.gutter, gutter)}${line.length > 0 ? ` ${line}` : ""}`;
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|     }
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|   }).join("\n");
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| 
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|   if (opts.message && !hasColumns) {
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|     frame = `${" ".repeat(numberMaxWidth + 1)}${opts.message}\n${frame}`;
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|   }
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| 
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|   if (highlighted) {
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|     return chalk.reset(frame);
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|   } else {
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|     return frame;
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|   }
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| }
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| 
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| function _default(rawLines, lineNumber, colNumber, opts = {}) {
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|   if (!deprecationWarningShown) {
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|     deprecationWarningShown = true;
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|     const message = "Passing lineNumber and colNumber is deprecated to @babel/code-frame. Please use `codeFrameColumns`.";
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| 
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|     if (process.emitWarning) {
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|       process.emitWarning(message, "DeprecationWarning");
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|     } else {
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|       const deprecationError = new Error(message);
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|       deprecationError.name = "DeprecationWarning";
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|       console.warn(new Error(message));
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|     }
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|   }
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| 
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|   colNumber = Math.max(colNumber, 0);
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|   const location = {
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|     start: {
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|       column: colNumber,
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|       line: lineNumber
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|     }
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|   };
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|   return codeFrameColumns(rawLines, location, opts);
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| } |