ArSn /
jay-gee-eff-for-web
| Total Complexity | 9 |
| Complexity/F | 2.25 |
| Lines of Code | 35 |
| Function Count | 4 |
| Duplicated Lines | 0 |
| Ratio | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
| 1 | const check = require('check-types'); |
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| 2 | |||
| 3 | /** |
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| 4 | * Various guards. |
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| 5 | */ |
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| 6 | class Guard { |
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| 7 | |||
| 8 | static assertNonEmptyStringParameter(name, value) { |
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| 9 | if (!check.nonEmptyString(value)) { |
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| 10 | throw new Error('Parameter "' + name + '" has to be an non-empty string.'); |
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| 11 | } |
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| 12 | } |
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| 13 | |||
| 14 | static assertValidMetadata(metadata) { |
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| 15 | if (!check.nonEmptyObject(metadata)) { |
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| 16 | throw new Error('Metadata on an node has to be an object.'); |
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| 17 | } |
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| 18 | } |
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| 19 | |||
| 20 | static assertValidMetadataOrNull(metadataOrNull) { |
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| 21 | if (check.assigned(metadataOrNull)) { |
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| 22 | Guard.assertValidMetadata(metadataOrNull); |
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| 23 | } |
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| 24 | } |
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| 25 | |||
| 26 | static assertValidDirected(directed) { |
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| 27 | if (!check.boolean(directed)) { |
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| 28 | throw new Error('Directed flag on an edge has to be boolean.'); |
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| 29 | } |
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| 30 | } |
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| 31 | } |
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| 32 | |||
| 33 | module.exports = { |
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| 34 | Guard, |
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| 35 | }; |
