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