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 wxy
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'use strict'
const getDocsUrl = require('./lib/get-docs-url')
const isPromise = require('./lib/is-promise')
module.exports = {
meta: {
docs: {
description:
'Ensures the proper number of arguments are passed to Promise functions',
url: getDocsUrl('valid-params')
}
},
create(context) {
return {
CallExpression(node) {
if (!isPromise(node)) {
return
}
const name = node.callee.property.name
const numArgs = node.arguments.length
switch (name) {
case 'resolve':
case 'reject':
if (numArgs > 1) {
context.report({
node,
message:
'Promise.{{ name }}() requires 0 or 1 arguments, but received {{ numArgs }}',
data: { name, numArgs }
})
}
break
case 'then':
if (numArgs < 1 || numArgs > 2) {
context.report({
node,
message:
'Promise.{{ name }}() requires 1 or 2 arguments, but received {{ numArgs }}',
data: { name, numArgs }
})
}
break
case 'race':
case 'all':
case 'catch':
case 'finally':
if (numArgs !== 1) {
context.report({
node,
message:
'Promise.{{ name }}() requires 1 argument, but received {{ numArgs }}',
data: { name, numArgs }
})
}
break
default:
break
}
}
}
}
}
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