55 lines
1.2 KiB
JavaScript
55 lines
1.2 KiB
JavaScript
'use strict';
|
|
|
|
var CONSTRUCTORS = {
|
|
Object: Object,
|
|
Array: Array,
|
|
Function: Function,
|
|
Number: Number,
|
|
String: String,
|
|
Date: Date,
|
|
RegExp: RegExp
|
|
};
|
|
|
|
module.exports = function defFunc(ajv) {
|
|
/* istanbul ignore else */
|
|
if (typeof Buffer != 'undefined')
|
|
CONSTRUCTORS.Buffer = Buffer;
|
|
|
|
defFunc.definition = {
|
|
compile: function (schema) {
|
|
if (typeof schema == 'string') {
|
|
var Constructor = getConstructor(schema);
|
|
return function (data) {
|
|
return data instanceof Constructor;
|
|
};
|
|
}
|
|
|
|
var constructors = schema.map(getConstructor);
|
|
return function (data) {
|
|
for (var i=0; i<constructors.length; i++)
|
|
if (data instanceof constructors[i]) return true;
|
|
return false;
|
|
};
|
|
},
|
|
CONSTRUCTORS: CONSTRUCTORS,
|
|
metaSchema: {
|
|
anyOf: [
|
|
{ type: 'string' },
|
|
{
|
|
type: 'array',
|
|
items: { type: 'string' }
|
|
}
|
|
]
|
|
}
|
|
};
|
|
|
|
ajv.addKeyword('instanceof', defFunc.definition);
|
|
return ajv;
|
|
|
|
function getConstructor(c) {
|
|
var Constructor = CONSTRUCTORS[c];
|
|
if (Constructor) return Constructor;
|
|
throw new Error('invalid "instanceof" keyword value ' + c);
|
|
}
|
|
};
|