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breeze-client

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Breeze data management for JavaScript clients

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import { core } from './core'; /** @hidden @internal */ export class Param { // The %1 parameter // is required // must be a %2 // must be an instance of %2 // must be an instance of the %2 enumeration // must have a %2 property // must be an array where each element // is optional or v; name; defaultValue; parent; /** @hidden @internal */ _context; /** @hidden @internal */ _contexts; constructor(v, name) { this.v = v; this.name = name; this._contexts = [null]; } isObject() { return this.isTypeOf('object'); } isBoolean() { return this.isTypeOf('boolean'); } isString() { return this.isTypeOf('string'); } isNumber() { return this.isTypeOf('number'); } isFunction() { return this.isTypeOf('function'); } isNonEmptyString() { return addContext(this, { fn: isNonEmptyString, msg: "must be a nonEmpty string" }); } isTypeOf(typeName) { return addContext(this, { fn: isTypeOf, typeName: typeName, msg: "must be a '" + typeName + "'" }); } isInstanceOf(type, typeName) { typeName = typeName || type.prototype._$typeName; return addContext(this, { fn: isInstanceOf, type: type, typeName: typeName, msg: "must be an instance of '" + typeName + "'" }); } hasProperty(propertyName) { return addContext(this, { fn: hasProperty, propertyName: propertyName, msg: "must have a '" + propertyName + "' property" }); } isEnumOf(enumType) { return addContext(this, { fn: isEnumOf, enumType: enumType, msg: "must be an instance of the '" + (enumType.name || 'unknown') + "' enumeration" }); } isRequired(allowNull = false) { return addContext(this, { fn: isRequired, allowNull: allowNull, msg: "is required" }); } isOptional() { let context = { fn: isOptional, prevContext: null, msg: isOptionalMessage }; return addContext(this, context); } isNonEmptyArray() { return this.isArray(true); } isArray(mustNotBeEmpty) { let context = { fn: isArray, mustNotBeEmpty: mustNotBeEmpty, prevContext: null, msg: isArrayMessage }; return addContext(this, context); } or() { this._contexts.push(null); this._context = null; return this; } check(defaultValue) { let ok = exec(this); if (ok === undefined) return; if (!ok) { throw new Error(this.getMessage()); } if (this.v !== undefined) { return this.v; } else { return defaultValue; } } /** @hidden @internal */ // called from outside this file. _addContext(context) { return addContext(this, context); } getMessage() { let that = this; let message = this._contexts.map(function (context) { return getMessage(context, that.v); }).join(", or it "); return core.formatString(this.MESSAGE_PREFIX, this.name) + " " + message; } withDefault(defaultValue) { this.defaultValue = defaultValue; return this; } whereParam(propName) { return this.parent.whereParam(propName); } applyAll(instance, checkOnly = false) { let parentTypeName = instance._$typeName; let allowUnknownProperty = (parentTypeName && this.parent.config._$typeName === parentTypeName); let clone = core.extend({}, this.parent.config); this.parent.params.forEach(function (p) { if (!allowUnknownProperty) delete clone[p.name]; try { p.check(); } catch (e) { throwConfigError(instance, e.message); } (!checkOnly) && p._applyOne(instance); }); // should be no properties left in the clone if (!allowUnknownProperty) { for (let key in clone) { // allow props with an undefined value if (clone[key] !== undefined) { throwConfigError(instance, core.formatString("Unknown property: '%1'.", key)); } } } } /** @hidden @internal */ _applyOne = function (instance) { if (this.v !== undefined) { instance[this.name] = this.v; } else { if (this.defaultValue !== undefined) { instance[this.name] = this.defaultValue; } } }; MESSAGE_PREFIX = "The '%1' parameter "; } /** @hidden @internal */ export let assertParam = function (v, name) { return new Param(v, name); }; function isTypeOf(context, v) { if (v == null) return false; if (typeof (v) === context.typeName) return true; return false; } function isNonEmptyString(context, v) { if (v == null) return false; return (typeof (v) === 'string') && v.length > 0; } function isInstanceOf(context, v) { if (v == null || context.type == null) return false; return (v instanceof context.type); } function isEnumOf(context, v) { if (v == null || context.enumType == null) return false; return context.enumType.contains(v); } function hasProperty(context, v) { if (v == null || context.propertyName == null) return false; return (v[context.propertyName] !== undefined); } function isRequired(context, v) { if (context.allowNull) { return v !== undefined; } else { return v != null; } } function isOptional(context, v) { if (v == null) return true; let prevContext = context.prevContext; if (prevContext && prevContext.fn) { return prevContext.fn(prevContext, v); } else { return true; } } function isOptionalMessage(context, v) { let prevContext = context.prevContext; let element = prevContext ? " or it " + getMessage(prevContext, v) : ""; return "is optional" + element; } function isArray(context, v) { if (!Array.isArray(v)) { return false; } if (context.mustNotBeEmpty) { if (v.length === 0) return false; } // allow standalone is array call. let prevContext = context.prevContext; if (!prevContext) return true; let pc = prevContext; return v.every(function (v1) { return pc.fn && pc.fn(pc, v1); }); } function isArrayMessage(context, v) { let arrayDescr = context.mustNotBeEmpty ? "a nonEmpty array" : "an array"; let prevContext = context.prevContext; let element = prevContext ? " where each element " + getMessage(prevContext, v) : ""; return " must be " + arrayDescr + element; } function getMessage(context, v) { let msg = context.msg; if (typeof (msg) === "function") { msg = msg(context, v); } return msg; } function addContext(that, context) { if (that._context) { let curContext = that._context; while (curContext.prevContext != null) { curContext = curContext.prevContext; } if (curContext.prevContext === null) { curContext.prevContext = context; // just update the prevContext but don't change the curContext. return that; } else if (context.prevContext == null) { context.prevContext = that._context; } else { throw new Error("Illegal construction - use 'or' to combine checks"); } } return setContext(that, context); } function setContext(that, context) { that._contexts[that._contexts.length - 1] = context; that._context = context; return that; } function exec(self) { // clear off last one if null let contexts = self._contexts; if (contexts[contexts.length - 1] == null) { contexts.pop(); } if (contexts.length === 0) { return undefined; } return contexts.some(function (context) { return context.fn ? context.fn(context, self.v) : false; }); } function throwConfigError(instance, message) { throw new Error(core.formatString("Error configuring an instance of '%1'. %2", (instance && instance._$typeName) || "object", message)); } class ConfigParam { config; params; constructor(config) { if (typeof (config) !== "object") { throw new Error("Configuration parameter should be an object, instead it is a: " + typeof (config)); } this.config = config; this.params = []; } whereParam(propName) { let param = new Param(this.config[propName], propName); param.parent = this; this.params.push(param); return param; } } /** @hidden @internal */ export let assertConfig = function (config) { return new ConfigParam(config); }; // Param is exposed so that additional 'is' methods can be added to the prototype. core.Param = Param; core.assertParam = assertParam; core.assertConfig = assertConfig; //# 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return addContext(this, {\r\n            fn: isTypeOf,\r\n            typeName: typeName,\r\n            msg: \"must be a '\" + typeName + \"'\"\r\n        });\r\n    }\r\n\r\n\r\n    isInstanceOf(type: Function, typeName?: string): Param {\r\n        typeName = typeName || type.prototype._$typeName;\r\n        return addContext(this, {\r\n            fn: isInstanceOf,\r\n            type: type,\r\n            typeName: typeName,\r\n            msg: \"must be an instance of '\" + typeName + \"'\"\r\n        });\r\n    }\r\n\r\n\r\n    hasProperty(propertyName: string): Param {\r\n        return addContext(this, {\r\n            fn: hasProperty,\r\n            propertyName: propertyName,\r\n            msg: \"must have a '\" + propertyName + \"' property\"\r\n        });\r\n    }\r\n\r\n\r\n    isEnumOf(enumType: any): Param {\r\n        return addContext(this, {\r\n            fn: isEnumOf,\r\n            enumType: enumType,\r\n            msg: \"must be an instance of the '\" + (enumType.name || 'unknown') + \"' enumeration\"\r\n        });\r\n    }\r\n\r\n    isRequired(allowNull: boolean = false): Param {\r\n        return addContext(this, {\r\n            fn: isRequired,\r\n            allowNull: allowNull,\r\n            msg: \"is required\"\r\n        });\r\n    }\r\n\r\n    isOptional(): Param {\r\n        let context = {\r\n            fn: isOptional,\r\n            prevContext: <any>null,\r\n            msg: isOptionalMessage\r\n        };\r\n        return addContext(this, context);\r\n    }\r\n\r\n    isNonEmptyArray(): Param {\r\n        return this.isArray(true);\r\n    }\r\n\r\n    isArray(mustNotBeEmpty?: boolean): Param {\r\n        let context = {\r\n            fn: isArray,\r\n            mustNotBeEmpty: mustNotBeEmpty,\r\n            prevContext: <any>null,\r\n            msg: isArrayMessage\r\n        };\r\n        return addContext(this, context);\r\n    }\r\n\r\n    or() {\r\n        this._contexts.push(<any>null);\r\n        this._context = <any>null;\r\n        return this;\r\n    }\r\n\r\n    check(defaultValue?: any) {\r\n        let ok = exec(this);\r\n        if (ok === undefined) return;\r\n        if (!ok) {\r\n            throw new Error(this.getMessage());\r\n        }\r\n\r\n        if (this.v !== undefined) {\r\n            return this.v;\r\n        } else {\r\n            return defaultValue;\r\n        }\r\n    }\r\n\r\n    /** @hidden @internal */\r\n    // called from outside this file.\r\n    _addContext(context: IParamContext) {\r\n        return addContext(this, context);\r\n    }\r\n\r\n    getMessage() {\r\n        let that = this;\r\n        let message = this._contexts.map(function (context) {\r\n            return getMessage(context, that.v);\r\n        }).join(\", or it \");\r\n        return core.formatString(this.MESSAGE_PREFIX, this.name) + \" \" + message;\r\n    }\r\n\r\n    withDefault(defaultValue: any) {\r\n        this.defaultValue = defaultValue;\r\n        return this;\r\n    }\r\n\r\n    whereParam(propName: string) {\r\n        return this.parent.whereParam(propName);\r\n    }\r\n\r\n    applyAll(instance: any, checkOnly: boolean = false) {\r\n        let parentTypeName = instance._$typeName;\r\n        let allowUnknownProperty = (parentTypeName && this.parent.config._$typeName === parentTypeName);\r\n\r\n        let clone = core.extend({}, this.parent.config);\r\n        this.parent.params.forEach(function (p) {\r\n            if (!allowUnknownProperty) delete clone[p.name];\r\n            try {\r\n                p.check();\r\n            } catch (e) {\r\n                throwConfigError(instance, e.message);\r\n            }\r\n            (!checkOnly) && p._applyOne(instance);\r\n        });\r\n        // should be no properties left in the clone\r\n        if (!allowUnknownProperty) {\r\n            for (let key in clone) {\r\n                // allow props with an undefined value\r\n                if (clone[key] !== undefined) {\r\n                    throwConfigError(instance, core.formatString(\"Unknown property: '%1'.\", key));\r\n                }\r\n            }\r\n        }\r\n    }\r\n\r\n    /** @hidden @internal */\r\n    _applyOne = function (this: Param, instance: any) {\r\n        if (this.v !== undefined) {\r\n            instance[this.name] = this.v;\r\n        } else {\r\n            if (this.defaultValue !== undefined) {\r\n                instance[this.name] = this.defaultValue;\r\n            }\r\n        }\r\n    };\r\n\r\n    MESSAGE_PREFIX = \"The '%1' parameter \";\r\n\r\n}\r\n\r\n/** @hidden @internal */\r\nexport let assertParam = function (v: any, name: string) {\r\n    return new Param(v, name);\r\n};\r\n\r\nfunction isTypeOf(context: IParamContext, v: any) {\r\n    if (v == null) return false;\r\n    if (typeof (v) === context.typeName) return true;\r\n    return false;\r\n}\r\n\r\nfunction isNonEmptyString(context: IParamContext, v: any) {\r\n    if (v == null) return false;\r\n    return (typeof (v) === 'string') && v.length > 0;\r\n}\r\n\r\nfunction isInstanceOf(context: IParamContext, v: any) {\r\n    if (v == null || context.type == null) return false;\r\n    return (v instanceof context.type);\r\n}\r\n\r\nfunction isEnumOf(context: IParamContext, v: any) {\r\n    if (v == null || context.enumType == null ) return false;\r\n    return (context.enumType as any).contains(v);\r\n}\r\n\r\nfunction hasProperty(context: IParamContext, v: any) {\r\n    if (v == null || context.propertyName == null) return false;\r\n    return (v[context.propertyName] !== undefined);\r\n}\r\n\r\nfunction isRequired(context: IParamContext, v: any) {\r\n    if (context.allowNull) {\r\n        return v !== undefined;\r\n    } else {\r\n        return v != null;\r\n    }\r\n}\r\n\r\nfunction isOptional(context: IParamContext, v: any) {\r\n    if (v == null) return true;\r\n    let prevContext = context.prevContext;\r\n    if (prevContext && prevContext.fn) {\r\n        return prevContext.fn(prevContext, v);\r\n    } else {\r\n        return true;\r\n    }\r\n}\r\n\r\nfunction isOptionalMessage(context: IParamContext, v: any) {\r\n    let prevContext = context.prevContext;\r\n    let element = prevContext ? \" or it \" + getMessage(prevContext, v) : \"\";\r\n    return \"is optional\" + element;\r\n}\r\n\r\nfunction isArray(context: IParamContext, v: any) {\r\n    if (!Array.isArray(v)) {\r\n        return false;\r\n    }\r\n    if (context.mustNotBeEmpty) {\r\n        if (v.length === 0) return false;\r\n    }\r\n    // allow standalone is array call.\r\n    let prevContext = context.prevContext;\r\n    if (!prevContext) return true;\r\n\r\n    let pc = <any>prevContext;\r\n    return v.every(function (v1: any) {\r\n        return pc.fn && pc.fn(pc, v1);\r\n    });\r\n}\r\n\r\nfunction isArrayMessage(context: IParamContext, v: any) {\r\n    let arrayDescr = context.mustNotBeEmpty ? \"a nonEmpty array\" : \"an array\";\r\n    let prevContext = context.prevContext;\r\n    let element = prevContext ? \" where each element \" + getMessage(prevContext, v) : \"\";\r\n    return \" must be \" + arrayDescr + element;\r\n}\r\n\r\nfunction getMessage(context: IParamContext, v: any) {\r\n    let msg = context.msg;\r\n    if (typeof (msg) === \"function\") {\r\n        msg = (<any>msg)(context, v);\r\n    }\r\n    return msg;\r\n}\r\n\r\nfunction addContext(that: Param, context: IParamContext) {\r\n    if (that._context) {\r\n        let curContext = that._context;\r\n\r\n        while (curContext.prevContext != null) {\r\n            curContext = curContext.prevContext;\r\n        }\r\n\r\n        if (curContext.prevContext === null) {\r\n            curContext.prevContext = context;\r\n            // just update the prevContext but don't change the curContext.\r\n            return that;\r\n        } else if (context.prevContext == null) {\r\n            context.prevContext = that._context;\r\n        } else {\r\n            throw new Error(\"Illegal construction - use 'or' to combine checks\");\r\n        }\r\n    }\r\n    return setContext(that, context);\r\n}\r\n\r\nfunction setContext(that: Param, context: IParamContext) {\r\n    that._contexts[that._contexts.length - 1] = context;\r\n    that._context = context;\r\n    return that;\r\n}\r\n\r\n\r\nfunction exec(self: Param) {\r\n    // clear off last one if null\r\n    let contexts = self._contexts;\r\n    if (contexts[contexts.length - 1] == null) {\r\n        contexts.pop();\r\n    }\r\n    if (contexts.length === 0) {\r\n        return undefined;\r\n    }\r\n    return contexts.some(function (context: IParamContext) {\r\n        return context.fn ? context.fn(context, self.v) : false;\r\n    });\r\n}\r\n\r\nfunction throwConfigError(instance: any, message: string) {\r\n    throw new Error(core.formatString(\"Error configuring an instance of '%1'. %2\", (instance && instance._$typeName) || \"object\", message));\r\n}\r\n\r\nclass ConfigParam {\r\n    config: any;\r\n    params: Param[];\r\n    constructor(config: Object) {\r\n        if (typeof (config) !== \"object\") {\r\n            throw new Error(\"Configuration parameter should be an object, instead it is a: \" + typeof (config));\r\n        }\r\n        this.config = config;\r\n        this.params = [];\r\n    }\r\n\r\n    whereParam(propName: string) {\r\n        let param = new Param(this.config[propName], propName);\r\n        param.parent = this;\r\n        this.params.push(param);\r\n        return param;\r\n    }\r\n}\r\n\r\n/** @hidden @internal */\r\nexport let assertConfig = function (config: Object) {\r\n    return new ConfigParam(config) as IConfigParam;\r\n};\r\n\r\n\r\n// Param is exposed so that additional 'is' methods can be added to the prototype.\r\n(core as any).Param = Param;\r\n(core as any).assertParam = assertParam;\r\n(core as any).assertConfig = assertConfig;\r\n"]}