"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.AssertionError = exports.InternalUndefinedVariableError = exports.UndefinedVariableError = exports.RenderError = exports.ParseError = exports.TokenizationError = exports.LiquidError = void 0;
const _ = require("./underscore");
class LiquidError extends Error {
    constructor(err, token) {
        super(err.message);
        this.originalError = err;
        this.token = token;
        this.context = '';
    }
    update() {
        const err = this.originalError;
        this.context = mkContext(this.token);
        this.message = mkMessage(err.message, this.token);
        this.stack = this.message + '\n' + this.context +
            '\n' + this.stack + '\nFrom ' + err.stack;
    }
}
exports.LiquidError = LiquidError;
class TokenizationError extends LiquidError {
    constructor(message, token) {
        super(new Error(message), token);
        this.name = 'TokenizationError';
        super.update();
    }
}
exports.TokenizationError = TokenizationError;
class ParseError extends LiquidError {
    constructor(err, token) {
        super(err, token);
        this.name = 'ParseError';
        this.message = err.message;
        super.update();
    }
}
exports.ParseError = ParseError;
class RenderError extends LiquidError {
    constructor(err, tpl) {
        super(err, tpl.token);
        this.name = 'RenderError';
        this.message = err.message;
        super.update();
    }
    static is(obj) {
        return obj.name === 'RenderError';
    }
}
exports.RenderError = RenderError;
class UndefinedVariableError extends LiquidError {
    constructor(err, token) {
        super(err, token);
        this.name = 'UndefinedVariableError';
        this.message = err.message;
        super.update();
    }
}
exports.UndefinedVariableError = UndefinedVariableError;
// only used internally; raised where we don't have token information,
// so it can't be an UndefinedVariableError.
class InternalUndefinedVariableError extends Error {
    constructor(variableName) {
        super(`undefined variable: ${variableName}`);
        this.name = 'InternalUndefinedVariableError';
        this.variableName = variableName;
    }
}
exports.InternalUndefinedVariableError = InternalUndefinedVariableError;
class AssertionError extends Error {
    constructor(message) {
        super(message);
        this.name = 'AssertionError';
        this.message = message + '';
    }
}
exports.AssertionError = AssertionError;
function mkContext(token) {
    const [line] = token.getPosition();
    const lines = token.input.split('\n');
    const begin = Math.max(line - 2, 1);
    const end = Math.min(line + 3, lines.length);
    const context = _
        .range(begin, end + 1)
        .map(lineNumber => {
        const indicator = (lineNumber === line) ? '>> ' : '   ';
        const num = _.padStart(String(lineNumber), String(end).length);
        const text = lines[lineNumber - 1];
        return `${indicator}${num}| ${text}`;
    })
        .join('\n');
    return context;
}
function mkMessage(msg, token) {
    if (token.file)
        msg += `, file:${token.file}`;
    const [line, col] = token.getPosition();
    msg += `, line:${line}, col:${col}`;
    return msg;
}
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