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- 'use strict';
- Object.defineProperty(exports, '__esModule', { value: true });
- var picocolors = require('picocolors');
- var jsTokens = require('js-tokens');
- var helperValidatorIdentifier = require('@babel/helper-validator-identifier');
- function isColorSupported() {
- return (typeof process === "object" && (process.env.FORCE_COLOR === "0" || process.env.FORCE_COLOR === "false") ? false : picocolors.isColorSupported
- );
- }
- const compose = (f, g) => v => f(g(v));
- function buildDefs(colors) {
- return {
- keyword: colors.cyan,
- capitalized: colors.yellow,
- jsxIdentifier: colors.yellow,
- punctuator: colors.yellow,
- number: colors.magenta,
- string: colors.green,
- regex: colors.magenta,
- comment: colors.gray,
- invalid: compose(compose(colors.white, colors.bgRed), colors.bold),
- gutter: colors.gray,
- marker: compose(colors.red, colors.bold),
- message: compose(colors.red, colors.bold),
- reset: colors.reset
- };
- }
- const defsOn = buildDefs(picocolors.createColors(true));
- const defsOff = buildDefs(picocolors.createColors(false));
- function getDefs(enabled) {
- return enabled ? defsOn : defsOff;
- }
- const sometimesKeywords = new Set(["as", "async", "from", "get", "of", "set"]);
- const NEWLINE$1 = /\r\n|[\n\r\u2028\u2029]/;
- const BRACKET = /^[()[\]{}]$/;
- let tokenize;
- {
- const JSX_TAG = /^[a-z][\w-]*$/i;
- const getTokenType = function (token, offset, text) {
- if (token.type === "name") {
- if (helperValidatorIdentifier.isKeyword(token.value) || helperValidatorIdentifier.isStrictReservedWord(token.value, true) || sometimesKeywords.has(token.value)) {
- return "keyword";
- }
- if (JSX_TAG.test(token.value) && (text[offset - 1] === "<" || text.slice(offset - 2, offset) === "</")) {
- return "jsxIdentifier";
- }
- if (token.value[0] !== token.value[0].toLowerCase()) {
- return "capitalized";
- }
- }
- if (token.type === "punctuator" && BRACKET.test(token.value)) {
- return "bracket";
- }
- if (token.type === "invalid" && (token.value === "@" || token.value === "#")) {
- return "punctuator";
- }
- return token.type;
- };
- tokenize = function* (text) {
- let match;
- while (match = jsTokens.default.exec(text)) {
- const token = jsTokens.matchToToken(match);
- yield {
- type: getTokenType(token, match.index, text),
- value: token.value
- };
- }
- };
- }
- function highlight(text) {
- if (text === "") return "";
- const defs = getDefs(true);
- let highlighted = "";
- for (const {
- type,
- value
- } of tokenize(text)) {
- if (type in defs) {
- highlighted += value.split(NEWLINE$1).map(str => defs[type](str)).join("\n");
- } else {
- highlighted += value;
- }
- }
- return highlighted;
- }
- let deprecationWarningShown = false;
- 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 shouldHighlight = opts.forceColor || isColorSupported() && opts.highlightCode;
- const defs = getDefs(shouldHighlight);
- 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 = shouldHighlight ? highlight(rawLines) : 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 ", defs.gutter(gutter.replace(/\d/g, " ")), " ", markerSpacing, defs.marker("^").repeat(numberOfMarkers)].join("");
- if (lastMarkerLine && opts.message) {
- markerLine += " " + defs.message(opts.message);
- }
- }
- return [defs.marker(">"), defs.gutter(gutter), line.length > 0 ? ` ${line}` : "", markerLine].join("");
- } else {
- return ` ${defs.gutter(gutter)}${line.length > 0 ? ` ${line}` : ""}`;
- }
- }).join("\n");
- if (opts.message && !hasColumns) {
- frame = `${" ".repeat(numberMaxWidth + 1)}${opts.message}\n${frame}`;
- }
- if (shouldHighlight) {
- return defs.reset(frame);
- } else {
- return frame;
- }
- }
- function index (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);
- }
- exports.codeFrameColumns = codeFrameColumns;
- exports.default = index;
- exports.highlight = highlight;
- //# sourceMappingURL=index.js.map
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