pip-services3-commons-nodex
Version:
Portable abstractions and patterns for Pip.Services in Node.js / ES2017
174 lines • 7.75 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.TypeMatcher = void 0;
/** @module reflect */
const TypeCode_1 = require("../convert/TypeCode");
const TypeConverter_1 = require("../convert/TypeConverter");
const convert_1 = require("../convert");
/**
* Helper class matches value types for equality.
*
* This class has symmetric implementation across all languages supported
* by Pip.Services toolkit and used to support dynamic data processing.
*
* @see [[TypeCode]]
*/
class TypeMatcher {
/**
* Matches expected type to a type of a value.
* The expected type can be specified by a type, type name or [[TypeCode]].
*
* @param expectedType an expected type to match.
* @param actualValue a value to match its type to the expected one.
* @returns true if types are matching and false if they don't.
*
* @see [[matchType]]
* @see [[matchValueTypeByName]] (for matching by types' string names)
*/
static matchValueType(expectedType, actualValue) {
if (expectedType == null) {
return true;
}
if (actualValue == null) {
throw new Error("Actual value cannot be null");
}
return TypeMatcher.matchType(expectedType, TypeConverter_1.TypeConverter.toTypeCode(actualValue));
}
/**
* Matches expected type to an actual type.
* The types can be specified as types, type names or [[TypeCode]].
*
* @param expectedType an expected type to match.
* @param actualType an actual type to match.
* @param actualValue an optional value to match its type to the expected one.
* @returns true if types are matching and false if they don't.
*
* @see [[matchTypeByName]]
* @see [[matchTypeByName]] (for matching by types' string names)
*/
static matchType(expectedType, actualType, actualValue = null) {
if (expectedType == null) {
return true;
}
if (actualType == null) {
throw new Error("Actual type cannot be null");
}
if (Number.isInteger(expectedType)) {
if (expectedType == actualType)
return true;
// Special provisions for dynamic data
if (expectedType == TypeCode_1.TypeCode.Integer
&& (actualType == TypeCode_1.TypeCode.Long || actualType == TypeCode_1.TypeCode.Float || actualType == TypeCode_1.TypeCode.Double))
return true;
if (expectedType == TypeCode_1.TypeCode.Long
&& (actualType == TypeCode_1.TypeCode.Integer || actualType == TypeCode_1.TypeCode.Float || actualType == TypeCode_1.TypeCode.Double))
return true;
if (expectedType == TypeCode_1.TypeCode.Float
&& (actualType == TypeCode_1.TypeCode.Integer || actualType == TypeCode_1.TypeCode.Long || actualType == TypeCode_1.TypeCode.Double))
return true;
if (expectedType == TypeCode_1.TypeCode.Double
&& (actualType == TypeCode_1.TypeCode.Integer || actualType == TypeCode_1.TypeCode.Long || actualType == TypeCode_1.TypeCode.Float))
return true;
if (expectedType == TypeCode_1.TypeCode.DateTime
&& (actualType == TypeCode_1.TypeCode.String && convert_1.DateTimeConverter.toNullableDateTime(actualValue) != null))
return true;
return false;
}
if (typeof expectedType === "string") {
return TypeMatcher.matchTypeByName(expectedType, actualType, actualValue);
}
return false;
}
/**
* Matches expected type to a type of a value.
*
* @param expectedType an expected type name to match.
* @param actualValue a value to match its type to the expected one.
* @returns true if types are matching and false if they don't.
*/
static matchValueTypeByName(expectedType, actualValue) {
if (expectedType == null) {
return true;
}
if (actualValue == null) {
throw new Error("Actual value cannot be null");
}
return TypeMatcher.matchTypeByName(expectedType, TypeConverter_1.TypeConverter.toTypeCode(actualValue));
}
/**
* Matches expected type to an actual type.
*
* @param expectedType an expected type name to match.
* @param actualType an actual type to match defined by type code.
* @param actualValue an optional value to match its type to the expected one.
* @returns true if types are matching and false if they don't.
*/
static matchTypeByName(expectedType, actualType, actualValue = null) {
if (expectedType == null) {
return true;
}
if (actualType == null) {
throw new Error("Actual type cannot be null");
}
expectedType = expectedType.toLowerCase();
if (expectedType == "object")
return true;
else if (expectedType == "int" || expectedType == "integer") {
return actualType == TypeCode_1.TypeCode.Integer
// Special provisions for dynamic data
|| actualType == TypeCode_1.TypeCode.Long;
}
else if (expectedType == "long") {
return actualType == TypeCode_1.TypeCode.Long
// Special provisions for dynamic data
|| actualType == TypeCode_1.TypeCode.Integer;
}
else if (expectedType == "float") {
return actualType == TypeCode_1.TypeCode.Float
// Special provisions for dynamic data
|| actualType == TypeCode_1.TypeCode.Double
|| actualType == TypeCode_1.TypeCode.Integer
|| actualType == TypeCode_1.TypeCode.Long;
}
else if (expectedType == "double") {
return actualType == TypeCode_1.TypeCode.Double
// Special provisions fro dynamic data
|| actualType == TypeCode_1.TypeCode.Float;
}
else if (expectedType == "string") {
return actualType == TypeCode_1.TypeCode.String;
}
else if (expectedType == "bool" || expectedType == "boolean") {
return actualType == TypeCode_1.TypeCode.Boolean;
}
else if (expectedType == "date" || expectedType == "datetime") {
return actualType == TypeCode_1.TypeCode.DateTime
// Special provisions fro dynamic data
|| (actualType == TypeCode_1.TypeCode.String && convert_1.DateTimeConverter.toNullableDateTime(actualValue) != null);
}
else if (expectedType == "timespan" || expectedType == "duration") {
return actualType == TypeCode_1.TypeCode.Integer
|| actualType == TypeCode_1.TypeCode.Long
|| actualType == TypeCode_1.TypeCode.Float
|| actualType == TypeCode_1.TypeCode.Double;
}
else if (expectedType == "enum") {
return actualType == TypeCode_1.TypeCode.Integer
|| actualType == TypeCode_1.TypeCode.String;
}
else if (expectedType == "map" || expectedType == "dict" || expectedType == "dictionary") {
return actualType == TypeCode_1.TypeCode.Map;
}
else if (expectedType == "array" || expectedType == "list") {
return actualType == TypeCode_1.TypeCode.Array;
}
else if (expectedType.endsWith("[]")) {
// Todo: Check subtype
return actualType == TypeCode_1.TypeCode.Array;
}
else
return false;
}
}
exports.TypeMatcher = TypeMatcher;
//# sourceMappingURL=TypeMatcher.js.map