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25 lines
755 B
JavaScript
25 lines
755 B
JavaScript
import {Parser} from "./state"
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import {Position, getLineInfo} from "./locutil"
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const pp = 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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let loc = getLineInfo(this.input, pos)
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message += " (" + loc.line + ":" + loc.column + ")"
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let 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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if (this.options.locations) {
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return new Position(this.curLine, this.pos - this.lineStart)
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}
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}
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