93 lines
2.6 KiB
JavaScript
93 lines
2.6 KiB
JavaScript
/* */
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"format cjs";
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"use strict";
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var _babelToolsProtectJs2 = require("./../../babel/tools/protect.js");
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var _babelToolsProtectJs3 = _interopRequireDefault(_babelToolsProtectJs2);
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exports.__esModule = true;
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exports.getLineInfo = getLineInfo;
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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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var _state = require("./state");
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var _whitespace = require("./whitespace");
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_babelToolsProtectJs3["default"](module);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
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// These are used when `options.locations` is on, for the
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// `startLoc` and `endLoc` properties.
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var Position = (function () {
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function Position(line, col) {
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_classCallCheck(this, Position);
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this.line = line;
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this.column = col;
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}
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Position.prototype.offset = function offset(n) {
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return new Position(this.line, this.column + n);
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};
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return Position;
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})();
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exports.Position = Position;
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var SourceLocation = function SourceLocation(p, start, end) {
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_classCallCheck(this, SourceLocation);
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this.start = start;
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this.end = end;
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if (p.sourceFile !== null) this.source = p.sourceFile;
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};
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exports.SourceLocation = SourceLocation;
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// The `getLineInfo` function is mostly useful when the
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// `locations` option is off (for performance reasons) and you
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// want to find the line/column position for a given character
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// offset. `input` should be the code string that the offset refers
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// into.
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function getLineInfo(input, offset) {
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for (var line = 1, cur = 0;;) {
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_whitespace.lineBreakG.lastIndex = cur;
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var match = _whitespace.lineBreakG.exec(input);
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if (match && match.index < offset) {
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++line;
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cur = match.index + match[0].length;
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} else {
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return new Position(line, offset - cur);
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}
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}
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}
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var pp = _state.Parser.prototype;
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// This function is used to raise exceptions on parse errors. It
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// takes an offset integer (into the current `input`) to indicate
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// the location of the error, attaches the position to the end
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// of the error message, and then raises a `SyntaxError` with that
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// message.
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pp.raise = function (pos, message) {
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var loc = getLineInfo(this.input, pos);
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message += " (" + loc.line + ":" + loc.column + ")";
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var err = new SyntaxError(message);
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err.pos = pos;err.loc = loc;err.raisedAt = this.pos;
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throw err;
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};
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pp.curPosition = function () {
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return new Position(this.curLine, this.pos - this.lineStart);
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};
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pp.markPosition = function () {
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return this.options.locations ? [this.start, this.startLoc] : this.start;
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}; |