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38 lines
1.8 KiB
JavaScript
38 lines
1.8 KiB
JavaScript
/**
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* Validation error description.
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*/
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export class ValidationError {
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/**
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*
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* @param shouldDecorate decorate the message with ANSI formatter escape codes for better readability
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* @param hasParent true when the error is a child of an another one
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* @param parentPath path as string to the parent of this property
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*/
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toString(shouldDecorate = false, hasParent = false, parentPath = ``) {
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const boldStart = shouldDecorate ? `\x1b[1m` : ``;
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const boldEnd = shouldDecorate ? `\x1b[22m` : ``;
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const propConstraintFailed = (propertyName) => ` - property ${boldStart}${parentPath}${propertyName}${boldEnd} has failed the following constraints: ${boldStart}${Object.keys(this.constraints).join(`, `)}${boldEnd} \n`;
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if (!hasParent) {
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return `An instance of ${boldStart}${this.target ? this.target.constructor.name : "an object"}${boldEnd} has failed the validation:\n` +
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(this.constraints ? propConstraintFailed(this.property) : ``) +
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this.children
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.map(childError => childError.toString(shouldDecorate, true, this.property))
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.join(``);
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}
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else {
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// we format numbers as array indexes for better readability.
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const formattedProperty = Number.isInteger(+this.property) ? `[${this.property}]` : `${parentPath ? `.` : ``}${this.property}`;
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if (this.constraints) {
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return propConstraintFailed(formattedProperty);
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}
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else {
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return this.children
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.map(childError => childError.toString(shouldDecorate, true, `${parentPath}${formattedProperty}`))
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.join(``);
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}
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}
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}
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}
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//# sourceMappingURL=ValidationError.js.map
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