class-transformer/esm5/MetadataStorage.js

import { TransformationType } from './enums';
/**
 * Storage all library metadata.
 */
var MetadataStorage = /** @class */ (function () {
    function MetadataStorage() {
        // -------------------------------------------------------------------------
        // Properties
        // -------------------------------------------------------------------------
        this._typeMetadatas = new Map();
        this._transformMetadatas = new Map();
        this._exposeMetadatas = new Map();
        this._excludeMetadatas = new Map();
        this._ancestorsMap = new Map();
    }
    // -------------------------------------------------------------------------
    // Adder Methods
    // -------------------------------------------------------------------------
    MetadataStorage.prototype.addTypeMetadata = function (metadata) {
        if (!this._typeMetadatas.has(metadata.target)) {
            this._typeMetadatas.set(metadata.target, new Map());
        }
        this._typeMetadatas.get(metadata.target).set(metadata.propertyName, metadata);
    };
    MetadataStorage.prototype.addTransformMetadata = function (metadata) {
        if (!this._transformMetadatas.has(metadata.target)) {
            this._transformMetadatas.set(metadata.target, new Map());
        }
        if (!this._transformMetadatas.get(metadata.target).has(metadata.propertyName)) {
            this._transformMetadatas.get(metadata.target).set(metadata.propertyName, []);
        }
        this._transformMetadatas.get(metadata.target).get(metadata.propertyName).push(metadata);
    };
    MetadataStorage.prototype.addExposeMetadata = function (metadata) {
        if (!this._exposeMetadatas.has(metadata.target)) {
            this._exposeMetadatas.set(metadata.target, new Map());
        }
        this._exposeMetadatas.get(metadata.target).set(metadata.propertyName, metadata);
    };
    MetadataStorage.prototype.addExcludeMetadata = function (metadata) {
        if (!this._excludeMetadatas.has(metadata.target)) {
            this._excludeMetadatas.set(metadata.target, new Map());
        }
        this._excludeMetadatas.get(metadata.target).set(metadata.propertyName, metadata);
    };
    // -------------------------------------------------------------------------
    // Public Methods
    // -------------------------------------------------------------------------
    MetadataStorage.prototype.findTransformMetadatas = function (target, propertyName, transformationType) {
        return this.findMetadatas(this._transformMetadatas, target, propertyName).filter(function (metadata) {
            if (!metadata.options)
                return true;
            if (metadata.options.toClassOnly === true && metadata.options.toPlainOnly === true)
                return true;
            if (metadata.options.toClassOnly === true) {
                return (transformationType === TransformationType.CLASS_TO_CLASS ||
                    transformationType === TransformationType.PLAIN_TO_CLASS);
            }
            if (metadata.options.toPlainOnly === true) {
                return transformationType === TransformationType.CLASS_TO_PLAIN;
            }
            return true;
        });
    };
    MetadataStorage.prototype.findExcludeMetadata = function (target, propertyName) {
        return this.findMetadata(this._excludeMetadatas, target, propertyName);
    };
    MetadataStorage.prototype.findExposeMetadata = function (target, propertyName) {
        return this.findMetadata(this._exposeMetadatas, target, propertyName);
    };
    MetadataStorage.prototype.findExposeMetadataByCustomName = function (target, name) {
        return this.getExposedMetadatas(target).find(function (metadata) {
            return metadata.options && metadata.options.name === name;
        });
    };
    MetadataStorage.prototype.findTypeMetadata = function (target, propertyName) {
        return this.findMetadata(this._typeMetadatas, target, propertyName);
    };
    MetadataStorage.prototype.getStrategy = function (target) {
        var excludeMap = this._excludeMetadatas.get(target);
        var exclude = excludeMap && excludeMap.get(undefined);
        var exposeMap = this._exposeMetadatas.get(target);
        var expose = exposeMap && exposeMap.get(undefined);
        if ((exclude && expose) || (!exclude && !expose))
            return 'none';
        return exclude ? 'excludeAll' : 'exposeAll';
    };
    MetadataStorage.prototype.getExposedMetadatas = function (target) {
        return this.getMetadata(this._exposeMetadatas, target);
    };
    MetadataStorage.prototype.getExcludedMetadatas = function (target) {
        return this.getMetadata(this._excludeMetadatas, target);
    };
    MetadataStorage.prototype.getExposedProperties = function (target, transformationType) {
        return this.getExposedMetadatas(target)
            .filter(function (metadata) {
            if (!metadata.options)
                return true;
            if (metadata.options.toClassOnly === true && metadata.options.toPlainOnly === true)
                return true;
            if (metadata.options.toClassOnly === true) {
                return (transformationType === TransformationType.CLASS_TO_CLASS ||
                    transformationType === TransformationType.PLAIN_TO_CLASS);
            }
            if (metadata.options.toPlainOnly === true) {
                return transformationType === TransformationType.CLASS_TO_PLAIN;
            }
            return true;
        })
            .map(function (metadata) { return metadata.propertyName; });
    };
    MetadataStorage.prototype.getExcludedProperties = function (target, transformationType) {
        return this.getExcludedMetadatas(target)
            .filter(function (metadata) {
            if (!metadata.options)
                return true;
            if (metadata.options.toClassOnly === true && metadata.options.toPlainOnly === true)
                return true;
            if (metadata.options.toClassOnly === true) {
                return (transformationType === TransformationType.CLASS_TO_CLASS ||
                    transformationType === TransformationType.PLAIN_TO_CLASS);
            }
            if (metadata.options.toPlainOnly === true) {
                return transformationType === TransformationType.CLASS_TO_PLAIN;
            }
            return true;
        })
            .map(function (metadata) { return metadata.propertyName; });
    };
    MetadataStorage.prototype.clear = function () {
        this._typeMetadatas.clear();
        this._exposeMetadatas.clear();
        this._excludeMetadatas.clear();
        this._ancestorsMap.clear();
    };
    // -------------------------------------------------------------------------
    // Private Methods
    // -------------------------------------------------------------------------
    MetadataStorage.prototype.getMetadata = function (metadatas, target) {
        var metadataFromTargetMap = metadatas.get(target);
        var metadataFromTarget;
        if (metadataFromTargetMap) {
            metadataFromTarget = Array.from(metadataFromTargetMap.values()).filter(function (meta) { return meta.propertyName !== undefined; });
        }
        var metadataFromAncestors = [];
        for (var _i = 0, _a = this.getAncestors(target); _i < _a.length; _i++) {
            var ancestor = _a[_i];
            var ancestorMetadataMap = metadatas.get(ancestor);
            if (ancestorMetadataMap) {
                var metadataFromAncestor = Array.from(ancestorMetadataMap.values()).filter(function (meta) { return meta.propertyName !== undefined; });
                metadataFromAncestors.push.apply(metadataFromAncestors, metadataFromAncestor);
            }
        }
        return metadataFromAncestors.concat(metadataFromTarget || []);
    };
    MetadataStorage.prototype.findMetadata = function (metadatas, target, propertyName) {
        var metadataFromTargetMap = metadatas.get(target);
        if (metadataFromTargetMap) {
            var metadataFromTarget = metadataFromTargetMap.get(propertyName);
            if (metadataFromTarget) {
                return metadataFromTarget;
            }
        }
        for (var _i = 0, _a = this.getAncestors(target); _i < _a.length; _i++) {
            var ancestor = _a[_i];
            var ancestorMetadataMap = metadatas.get(ancestor);
            if (ancestorMetadataMap) {
                var ancestorResult = ancestorMetadataMap.get(propertyName);
                if (ancestorResult) {
                    return ancestorResult;
                }
            }
        }
        return undefined;
    };
    MetadataStorage.prototype.findMetadatas = function (metadatas, target, propertyName) {
        var metadataFromTargetMap = metadatas.get(target);
        var metadataFromTarget;
        if (metadataFromTargetMap) {
            metadataFromTarget = metadataFromTargetMap.get(propertyName);
        }
        var metadataFromAncestorsTarget = [];
        for (var _i = 0, _a = this.getAncestors(target); _i < _a.length; _i++) {
            var ancestor = _a[_i];
            var ancestorMetadataMap = metadatas.get(ancestor);
            if (ancestorMetadataMap) {
                if (ancestorMetadataMap.has(propertyName)) {
                    metadataFromAncestorsTarget.push.apply(metadataFromAncestorsTarget, ancestorMetadataMap.get(propertyName));
                }
            }
        }
        return metadataFromAncestorsTarget
            .slice()
            .reverse()
            .concat((metadataFromTarget || []).slice().reverse());
    };
    MetadataStorage.prototype.getAncestors = function (target) {
        if (!target)
            return [];
        if (!this._ancestorsMap.has(target)) {
            var ancestors = [];
            for (var baseClass = Object.getPrototypeOf(target.prototype.constructor); typeof baseClass.prototype !== 'undefined'; baseClass = Object.getPrototypeOf(baseClass.prototype.constructor)) {
                ancestors.push(baseClass);
            }
            this._ancestorsMap.set(target, ancestors);
        }
        return this._ancestorsMap.get(target);
    };
    return MetadataStorage;
}());
export { MetadataStorage };
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