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Evgeny Poberezkin 2015-12-23 16:56:33 +00:00
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@ -264,14 +264,14 @@ See the example of defining recursive macro keyword `deepProperties` in the [tes
### Define keyword with "inline" compilation function ### Define keyword with "inline" compilation function
Inline compilation function is called during schema compilation. It is passed three parameters: `it` (the current schema compilation context), `schema` and `parentSchema` and it should return the code (as a string) that will be inlined in the code of compiled schema. This code can be either an expression that evaluates to the validation result (boolean) or a set of statements that assign the validation result to a variable. Inline compilation function is called during schema compilation. It is passed four parameters: `it` (the current schema compilation context), `keyword` (added in v3.0 to allow compiling multiple keywords with a single function), `schema` and `parentSchema` and it should return the code (as a string) that will be inlined in the code of compiled schema. This code can be either an expression that evaluates to the validation result (boolean) or a set of statements that assigns the validation result to a variable.
While it can be more difficult to define keywords with "inline" functions, it can have the best performance. While it can be more difficult to define keywords with "inline" functions, it can have the best performance.
Example `even` keyword: Example `even` keyword:
``` ```
ajv.addKeyword('even', { type: 'number', inline: function (it, schema) { ajv.addKeyword('even', { type: 'number', inline: function (it, keyword, schema) {
var op = schema ? '===' : '!=='; var op = schema ? '===' : '!==';
return 'data' + (it.dataLevel || '') + ' % 2 ' + op + ' 0'; return 'data' + (it.dataLevel || '') + ' % 2 ' + op + ' 0';
} }); } });