class-validator/esm5/metadata/MetadataStorage.js

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    return to.concat(ar || Array.prototype.slice.call(from));
};
import { ValidationSchemaToMetadataTransformer } from '../validation-schema/ValidationSchemaToMetadataTransformer';
import { getGlobal } from '../utils';
/**
 * Storage all metadatas.
 */
var MetadataStorage = /** @class */ (function () {
    function MetadataStorage() {
        // -------------------------------------------------------------------------
        // Private properties
        // -------------------------------------------------------------------------
        this.validationMetadatas = new Map();
        this.constraintMetadatas = new Map();
    }
    Object.defineProperty(MetadataStorage.prototype, "hasValidationMetaData", {
        get: function () {
            return !!this.validationMetadatas.size;
        },
        enumerable: false,
        configurable: true
    });
    // -------------------------------------------------------------------------
    // Public Methods
    // -------------------------------------------------------------------------
    /**
     * Adds a new validation metadata.
     */
    MetadataStorage.prototype.addValidationSchema = function (schema) {
        var _this = this;
        var validationMetadatas = new ValidationSchemaToMetadataTransformer().transform(schema);
        validationMetadatas.forEach(function (validationMetadata) { return _this.addValidationMetadata(validationMetadata); });
    };
    /**
     * Adds a new validation metadata.
     */
    MetadataStorage.prototype.addValidationMetadata = function (metadata) {
        var existingMetadata = this.validationMetadatas.get(metadata.target);
        if (existingMetadata) {
            existingMetadata.push(metadata);
        }
        else {
            this.validationMetadatas.set(metadata.target, [metadata]);
        }
    };
    /**
     * Adds a new constraint metadata.
     */
    MetadataStorage.prototype.addConstraintMetadata = function (metadata) {
        var existingMetadata = this.constraintMetadatas.get(metadata.target);
        if (existingMetadata) {
            existingMetadata.push(metadata);
        }
        else {
            this.constraintMetadatas.set(metadata.target, [metadata]);
        }
    };
    /**
     * Groups metadata by their property names.
     */
    MetadataStorage.prototype.groupByPropertyName = function (metadata) {
        var grouped = {};
        metadata.forEach(function (metadata) {
            if (!grouped[metadata.propertyName])
                grouped[metadata.propertyName] = [];
            grouped[metadata.propertyName].push(metadata);
        });
        return grouped;
    };
    /**
     * Gets all validation metadatas for the given object with the given groups.
     */
    MetadataStorage.prototype.getTargetValidationMetadatas = function (targetConstructor, targetSchema, always, strictGroups, groups) {
        var e_1, _a;
        var includeMetadataBecauseOfAlwaysOption = function (metadata) {
            // `metadata.always` overrides global default.
            if (typeof metadata.always !== 'undefined')
                return metadata.always;
            // `metadata.groups` overrides global default.
            if (metadata.groups && metadata.groups.length)
                return false;
            // Use global default.
            return always;
        };
        var excludeMetadataBecauseOfStrictGroupsOption = function (metadata) {
            if (strictGroups) {
                // Validation is not using groups.
                if (!groups || !groups.length) {
                    // `metadata.groups` has at least one group.
                    if (metadata.groups && metadata.groups.length)
                        return true;
                }
            }
            return false;
        };
        // get directly related to a target metadatas
        var filteredForOriginalMetadatasSearch = this.validationMetadatas.get(targetConstructor) || [];
        var originalMetadatas = filteredForOriginalMetadatasSearch.filter(function (metadata) {
            if (metadata.target !== targetConstructor && metadata.target !== targetSchema)
                return false;
            if (includeMetadataBecauseOfAlwaysOption(metadata))
                return true;
            if (excludeMetadataBecauseOfStrictGroupsOption(metadata))
                return false;
            if (groups && groups.length > 0)
                return metadata.groups && !!metadata.groups.find(function (group) { return groups.indexOf(group) !== -1; });
            return true;
        });
        // get metadatas for inherited classes
        var filteredForInheritedMetadatasSearch = [];
        try {
            for (var _b = __values(this.validationMetadatas.entries()), _c = _b.next(); !_c.done; _c = _b.next()) {
                var _d = __read(_c.value, 2), key = _d[0], value = _d[1];
                if (targetConstructor.prototype instanceof key) {
                    filteredForInheritedMetadatasSearch.push.apply(filteredForInheritedMetadatasSearch, __spreadArray([], __read(value), false));
                }
            }
        }
        catch (e_1_1) { e_1 = { error: e_1_1 }; }
        finally {
            try {
                if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
            }
            finally { if (e_1) throw e_1.error; }
        }
        var inheritedMetadatas = filteredForInheritedMetadatasSearch.filter(function (metadata) {
            // if target is a string it's means we validate against a schema, and there is no inheritance support for schemas
            if (typeof metadata.target === 'string')
                return false;
            if (metadata.target === targetConstructor)
                return false;
            if (metadata.target instanceof Function && !(targetConstructor.prototype instanceof metadata.target))
                return false;
            if (includeMetadataBecauseOfAlwaysOption(metadata))
                return true;
            if (excludeMetadataBecauseOfStrictGroupsOption(metadata))
                return false;
            if (groups && groups.length > 0)
                return metadata.groups && !!metadata.groups.find(function (group) { return groups.indexOf(group) !== -1; });
            return true;
        });
        // filter out duplicate metadatas, prefer original metadatas instead of inherited metadatas
        var uniqueInheritedMetadatas = inheritedMetadatas.filter(function (inheritedMetadata) {
            return !originalMetadatas.find(function (originalMetadata) {
                return (originalMetadata.propertyName === inheritedMetadata.propertyName &&
                    originalMetadata.type === inheritedMetadata.type);
            });
        });
        return originalMetadatas.concat(uniqueInheritedMetadatas);
    };
    /**
     * Gets all validator constraints for the given object.
     */
    MetadataStorage.prototype.getTargetValidatorConstraints = function (target) {
        return this.constraintMetadatas.get(target) || [];
    };
    return MetadataStorage;
}());
export { MetadataStorage };
/**
 * Gets metadata storage.
 * Metadata storage follows the best practices and stores metadata in a global variable.
 */
export function getMetadataStorage() {
    var global = getGlobal();
    if (!global.classValidatorMetadataStorage) {
        global.classValidatorMetadataStorage = new MetadataStorage();
    }
    return global.classValidatorMetadataStorage;
}
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