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import t from '../types'

import { placeAtNode as atNode } from 'ast-loc-utils'

normalizeArg(arg) ->

if arg:

arg

else:

t.unaryExpression("void", t.numericLiteral(0))

inlinedOperator = {

looseEq: (args) => t.binaryExpression("==", normalizeArg(args[0]), normalizeArg(args[1]))

looseNotEq: (args) => t.binaryExpression("!=", normalizeArg(args[0]), normalizeArg(args[1]))

bitwiseNot: (args) => t.unaryExpression("~", normalizeArg(args[0]))

bitwiseAnd: (args) => t.binaryExpression("&", normalizeArg(args[0]), normalizeArg(args[1]))

bitwiseOr: (args) => t.binaryExpression("|", normalizeArg(args[0]), normalizeArg(args[1]))

bitwiseXor: (args) => t.binaryExpression("^", normalizeArg(args[0]), normalizeArg(args[1]))

bitwiseLeftShift: (args) => t.binaryExpression("<<", normalizeArg(args[0]), normalizeArg(args[1]))

bitwiseRightShift: (args) => t.binaryExpression(">>", normalizeArg(args[0]), normalizeArg(args[1]))

bitwiseZeroFillRightShift: (args) => t.binaryExpression(">>>", normalizeArg(args[0]), normalizeArg(args[1]))

}

export maybeReplaceWithInlinedOperator(state, path) ->

{ node } = path

if state.options.inlinedOperatorsEnabled() and node.callee.type == "Identifier":

name = node.callee.name

if inlinedOperator[name] and (not path.scope.hasBinding(name)):

path.replaceWith(inlinedOperator[name](node.arguments)~atNode(node))