@swaptoshi/dex-module/dist/stores/library/periphery/liquidity_amounts.js

Klayr decentralized exchange (dex) on-chain module

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.toUint128 = toUint128;
exports.getLiquidityForAmount0 = getLiquidityForAmount0;
exports.getLiquidityForAmount1 = getLiquidityForAmount1;
exports.getLiquidityForAmounts = getLiquidityForAmounts;
exports.getAmount0ForLiquidity = getAmount0ForLiquidity;
exports.getAmount1ForLiquidity = getAmount1ForLiquidity;
exports.getAmountsForLiquidity = getAmountsForLiquidity;
const int_1 = require("../int");
const FullMath = require("../core/full_math");
const FixedPoint96 = require("../core/fixed_point_96");
function toUint128(x) {
    return int_1.Uint128.from(x).toString();
}
function getLiquidityForAmount0(sqrtRatioAX96, sqrtRatioBX96, amount0) {
    let _sqrtRatioAX96 = sqrtRatioAX96;
    let _sqrtRatioBX96 = sqrtRatioBX96;
    if (int_1.Uint160.from(sqrtRatioAX96).gt(sqrtRatioBX96)) {
        _sqrtRatioAX96 = sqrtRatioBX96;
        _sqrtRatioBX96 = sqrtRatioAX96;
    }
    const intermediate = FullMath.mulDiv(_sqrtRatioAX96, _sqrtRatioBX96, FixedPoint96.Q96);
    const liquidity = toUint128(FullMath.mulDiv(amount0, intermediate, int_1.Uint160.from(_sqrtRatioBX96).sub(_sqrtRatioAX96).toString()));
    return liquidity;
}
function getLiquidityForAmount1(sqrtRatioAX96, sqrtRatioBX96, amount1) {
    let _sqrtRatioAX96 = sqrtRatioAX96;
    let _sqrtRatioBX96 = sqrtRatioBX96;
    if (int_1.Uint160.from(sqrtRatioAX96).gt(sqrtRatioBX96)) {
        _sqrtRatioAX96 = sqrtRatioBX96;
        _sqrtRatioBX96 = sqrtRatioAX96;
    }
    const liquidity = toUint128(FullMath.mulDiv(amount1, FixedPoint96.Q96, int_1.Uint160.from(_sqrtRatioBX96).sub(_sqrtRatioAX96).toString()));
    return liquidity;
}
function getLiquidityForAmounts(sqrtRatioX96, sqrtRatioAX96, sqrtRatioBX96, amount0, amount1) {
    let liquidity;
    let _sqrtRatioAX96 = sqrtRatioAX96;
    let _sqrtRatioBX96 = sqrtRatioBX96;
    if (int_1.Uint160.from(sqrtRatioAX96).gt(sqrtRatioBX96)) {
        _sqrtRatioAX96 = sqrtRatioBX96;
        _sqrtRatioBX96 = sqrtRatioAX96;
    }
    if (int_1.Uint160.from(sqrtRatioX96).lte(_sqrtRatioAX96)) {
        liquidity = getLiquidityForAmount0(_sqrtRatioAX96, _sqrtRatioBX96, amount0);
    }
    else if (int_1.Uint160.from(sqrtRatioX96).lt(_sqrtRatioBX96)) {
        const liquidity0 = getLiquidityForAmount0(sqrtRatioX96, _sqrtRatioBX96, amount0);
        const liquidity1 = getLiquidityForAmount1(_sqrtRatioAX96, sqrtRatioX96, amount1);
        liquidity = int_1.Uint128.from(liquidity0).lt(liquidity1) ? liquidity0 : liquidity1;
    }
    else {
        liquidity = getLiquidityForAmount1(_sqrtRatioAX96, _sqrtRatioBX96, amount1);
    }
    return liquidity;
}
function getAmount0ForLiquidity(sqrtRatioAX96, sqrtRatioBX96, liquidity) {
    let _sqrtRatioAX96 = sqrtRatioAX96;
    let _sqrtRatioBX96 = sqrtRatioBX96;
    if (int_1.Uint160.from(sqrtRatioAX96).gt(sqrtRatioBX96)) {
        _sqrtRatioAX96 = sqrtRatioBX96;
        _sqrtRatioBX96 = sqrtRatioAX96;
    }
    return int_1.Uint256.from(FullMath.mulDiv(int_1.Uint256.from(liquidity).shl(FixedPoint96.RESOLUTION).toString(), int_1.Uint160.from(_sqrtRatioBX96).sub(_sqrtRatioAX96).toString(), _sqrtRatioBX96))
        .div(_sqrtRatioAX96)
        .toString();
}
function getAmount1ForLiquidity(sqrtRatioAX96, sqrtRatioBX96, liquidity) {
    let _sqrtRatioAX96 = sqrtRatioAX96;
    let _sqrtRatioBX96 = sqrtRatioBX96;
    if (int_1.Uint160.from(sqrtRatioAX96).gt(sqrtRatioBX96)) {
        _sqrtRatioAX96 = sqrtRatioBX96;
        _sqrtRatioBX96 = sqrtRatioAX96;
    }
    return FullMath.mulDiv(liquidity, int_1.Uint160.from(_sqrtRatioBX96).sub(_sqrtRatioAX96).toString(), FixedPoint96.Q96);
}
function getAmountsForLiquidity(sqrtRatioX96, sqrtRatioAX96, sqrtRatioBX96, liquidity) {
    let amount0 = '0';
    let amount1 = '0';
    let _sqrtRatioAX96 = sqrtRatioAX96;
    let _sqrtRatioBX96 = sqrtRatioBX96;
    if (int_1.Uint160.from(sqrtRatioAX96).gt(sqrtRatioBX96)) {
        _sqrtRatioAX96 = sqrtRatioBX96;
        _sqrtRatioBX96 = sqrtRatioAX96;
    }
    if (int_1.Uint160.from(sqrtRatioX96).lte(_sqrtRatioAX96)) {
        amount0 = getAmount0ForLiquidity(_sqrtRatioAX96, _sqrtRatioBX96, liquidity);
    }
    else if (int_1.Uint160.from(sqrtRatioX96).lt(_sqrtRatioBX96)) {
        amount0 = getAmount0ForLiquidity(sqrtRatioX96, _sqrtRatioBX96, liquidity);
        amount1 = getAmount1ForLiquidity(_sqrtRatioAX96, sqrtRatioX96, liquidity);
    }
    else {
        amount1 = getAmount1ForLiquidity(_sqrtRatioAX96, _sqrtRatioBX96, liquidity);
    }
    return [amount0, amount1];
}
//# sourceMappingURL=liquidity_amounts.js.map