import {Parser} from “./state” import {Position, getLineInfo} from “./locutil”
const pp = Parser.prototype
// This function is used to raise exceptions on parse errors. It // takes an offset integer (into the current `input`) to indicate // the location of the error, attaches the position to the end // of the error message, and then raises a `SyntaxError` with that // message.
pp.raise = function(pos, message) {
let loc = getLineInfo(this.input, pos) message += " (" + loc.line + ":" + loc.column + ")" let err = new SyntaxError(message) err.pos = pos; err.loc = loc; err.raisedAt = this.pos throw err
}
pp.raiseRecoverable = pp.raise
pp.curPosition = function() {
if (this.options.locations) { return new Position(this.curLine, this.pos - this.lineStart) }
}