mirror of
https://github.com/kremalicious/metamask-extension.git
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43b1cb9100
Fixed warnings: ```md app/scripts/controllers/computed-balances.js + 35:27 warning Missing space before function parentheses space-before-function-paren + 41:14 warning 'address' is never reassigned. Use 'const' instead prefer-const + 61:9 warning 'updater' is never reassigned. Use 'const' instead prefer-const + 68:11 warning 'newState' is never reassigned. Use 'const' instead prefer-const app/scripts/controllers/network.js + 104:29 warning Missing space before function parentheses space-before-function-paren app/scripts/lib/createLoggerMiddleware.js + 4:32 warning Missing space before function parentheses space-before-function-paren + 15:2 warning Newline required at end of file but not found eol-last app/scripts/lib/createOriginMiddleware.js + 4:32 warning Missing space before function parentheses space-before-function-paren + 9:2 warning Newline required at end of file but not found eol-last app/scripts/lib/createProviderMiddleware.js + 5:34 warning Missing space before function parentheses space-before-function-paren + 13:2 warning Newline required at end of file but not found eol-last app/scripts/lib/events-proxy.js + 1:50 warning Missing space before function parentheses space-before-function-paren + 31:2 warning Newline required at end of file but not found eol-last app/scripts/lib/nodeify.js + 2:22 warning Missing space before function parentheses space-before-function-paren + 2:24 warning Missing space before opening brace space-before-blocks + 5:18 warning Missing space before function parentheses space-before-function-paren + 5:20 warning Missing space before opening brace space-before-blocks app/scripts/lib/pending-balance-calculator.js + 16:19 warning Missing space before function parentheses space-before-function-paren app/scripts/lib/pending-tx-tracker.js + 85:11 warning '||' should be placed at the end of the line operator-linebreak + 87:11 warning '||' should be placed at the end of the line operator-linebreak + 88:11 warning '||' should be placed at the end of the line operator-linebreak + 90:11 warning '||' should be placed at the end of the line operator-linebreak + 91:11 warning '||' should be placed at the end of the line operator-linebreak app/scripts/lib/port-stream.js + 3:22 warning Missing space before function parentheses space-before-function-paren + 3:24 warning Missing space before opening brace space-before-blocks app/scripts/lib/tx-gas-utils.js + 84:2 warning Newline required at end of file but not found eol-last app/scripts/lib/tx-state-history-helper.js + 12:37 warning Missing space before function parentheses space-before-function-paren + 23:30 warning Missing space before function parentheses space-before-function-paren + 30:23 warning Missing space before function parentheses space-before-function-paren + 35:28 warning Missing space before function parentheses space-before-function-paren + 41:2 warning Newline required at end of file but not found eol-last app/scripts/lib/tx-state-manager.js + 94:13 warning 'value' is never reassigned. Use 'const' instead prefer-const ui/app/reducers.js + 45:7 warning 'state' is never reassigned. Use 'const' instead prefer-const + 53:7 warning 'stateString' is never reassigned. Use 'const' instead prefer-const ui/lib/tx-helper.js + 27:2 warning Newline required at end of file but not found eol-last ui/app/components/account-dropdowns.js + 163:1 warning More than 2 blank lines not allowed no-multiple-empty-lines ui/app/components/menu-droppo.js + 22:7 warning 'style' is never reassigned. Use 'const' instead prefer-const ui/app/components/shapeshift-form.js + 135:11 warning '&&' should be placed at the end of the line operator-linebreak ui/app/components/typed-message-renderer.js + 35:25 warning Missing space before function parentheses space-before-function-paren + 42:2 warning Newline required at end of file but not found eol-last mascara/server/index.js + 11:42 warning Use path.join() or path.resolve() instead of + to create paths no-path-concat + 12:36 warning Use path.join() or path.resolve() instead of + to create paths no-path-concat + 13:33 warning Use path.join() or path.resolve() instead of + to create paths no-path-concat + 14:40 warning Use path.join() or path.resolve() instead of + to create paths no-path-concat + 20:29 warning Use path.join() or path.resolve() instead of + to create paths no-path-concat + 21:29 warning Use path.join() or path.resolve() instead of + to create paths no-path-concat + 26:40 warning Use path.join() or path.resolve() instead of + to create paths no-path-concat ```
85 lines
2.7 KiB
JavaScript
85 lines
2.7 KiB
JavaScript
const EthQuery = require('ethjs-query')
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const {
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hexToBn,
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BnMultiplyByFraction,
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bnToHex,
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} = require('./util')
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/*
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tx-utils are utility methods for Transaction manager
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its passed ethquery
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and used to do things like calculate gas of a tx.
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*/
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module.exports = class txProvideUtil {
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constructor (provider) {
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this.query = new EthQuery(provider)
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}
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async analyzeGasUsage (txMeta) {
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const block = await this.query.getBlockByNumber('latest', true)
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let estimatedGasHex
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try {
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estimatedGasHex = await this.estimateTxGas(txMeta, block.gasLimit)
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} catch (err) {
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if (err.message.includes('Transaction execution error.')) {
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txMeta.simulationFails = true
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return txMeta
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}
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}
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this.setTxGas(txMeta, block.gasLimit, estimatedGasHex)
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return txMeta
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}
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async estimateTxGas (txMeta, blockGasLimitHex) {
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const txParams = txMeta.txParams
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// check if gasLimit is already specified
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txMeta.gasLimitSpecified = Boolean(txParams.gas)
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// if not, fallback to block gasLimit
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if (!txMeta.gasLimitSpecified) {
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const blockGasLimitBN = hexToBn(blockGasLimitHex)
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const saferGasLimitBN = BnMultiplyByFraction(blockGasLimitBN, 19, 20)
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txParams.gas = bnToHex(saferGasLimitBN)
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}
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// run tx
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return await this.query.estimateGas(txParams)
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}
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setTxGas (txMeta, blockGasLimitHex, estimatedGasHex) {
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txMeta.estimatedGas = estimatedGasHex
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const txParams = txMeta.txParams
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// if gasLimit was specified and doesnt OOG,
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// use original specified amount
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if (txMeta.gasLimitSpecified) {
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txMeta.estimatedGas = txParams.gas
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return
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}
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// if gasLimit not originally specified,
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// try adding an additional gas buffer to our estimation for safety
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const recommendedGasHex = this.addGasBuffer(txMeta.estimatedGas, blockGasLimitHex)
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txParams.gas = recommendedGasHex
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return
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}
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addGasBuffer (initialGasLimitHex, blockGasLimitHex) {
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const initialGasLimitBn = hexToBn(initialGasLimitHex)
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const blockGasLimitBn = hexToBn(blockGasLimitHex)
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const upperGasLimitBn = blockGasLimitBn.muln(0.9)
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const bufferedGasLimitBn = initialGasLimitBn.muln(1.5)
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// if initialGasLimit is above blockGasLimit, dont modify it
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if (initialGasLimitBn.gt(upperGasLimitBn)) return bnToHex(initialGasLimitBn)
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// if bufferedGasLimit is below blockGasLimit, use bufferedGasLimit
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if (bufferedGasLimitBn.lt(upperGasLimitBn)) return bnToHex(bufferedGasLimitBn)
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// otherwise use blockGasLimit
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return bnToHex(upperGasLimitBn)
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}
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async validateTxParams (txParams) {
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if (('value' in txParams) && txParams.value.indexOf('-') === 0) {
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throw new Error(`Invalid transaction value of ${txParams.value} not a positive number.`)
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}
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}
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}
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