@ngrx/entity
Version:
Common utilities for entity reducers
248 lines • 11 kB
JavaScript
;
var __values = (this && this.__values) || function(o) {
var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
if (m) return m.call(o);
if (o && typeof o.length === "number") return {
next: function () {
if (o && i >= o.length) o = void 0;
return { value: o && o[i++], done: !o };
}
};
throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
var __read = (this && this.__read) || function (o, n) {
var m = typeof Symbol === "function" && o[Symbol.iterator];
if (!m) return o;
var i = m.call(o), r, ar = [], e;
try {
while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
}
catch (error) { e = { error: error }; }
finally {
try {
if (r && !r.done && (m = i["return"])) m.call(i);
}
finally { if (e) throw e.error; }
}
return ar;
};
var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
if (ar || !(i in from)) {
if (!ar) ar = Array.prototype.slice.call(from, 0, i);
ar[i] = from[i];
}
}
return to.concat(ar || Array.prototype.slice.call(from));
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getPrefix = exports.omit = exports.addReducerImportToNgModule = exports.addReducerToActionReducerMap = exports.addReducerToStateInterface = exports.addReducerToState = void 0;
var ts = require("typescript");
var stringUtils = require("./strings");
var change_1 = require("./change");
var schematics_1 = require("@angular-devkit/schematics");
var core_1 = require("@angular-devkit/core");
var find_module_1 = require("./find-module");
var ast_utils_1 = require("./ast-utils");
function addReducerToState(options) {
return function (host) {
var e_1, _a;
if (!options.reducers) {
return host;
}
var reducersPath = (0, core_1.normalize)("/".concat(options.path, "/").concat(options.reducers));
if (!host.exists(reducersPath)) {
throw new Error("Specified reducers path ".concat(reducersPath, " does not exist"));
}
var text = host.read(reducersPath);
if (text === null) {
throw new schematics_1.SchematicsException("File ".concat(reducersPath, " does not exist."));
}
var sourceText = text.toString('utf-8');
var source = ts.createSourceFile(reducersPath, sourceText, ts.ScriptTarget.Latest, true);
var reducerPath = "/".concat(options.path, "/") +
(options.flat ? '' : stringUtils.dasherize(options.name) + '/') +
(options.group ? 'reducers/' : '') +
stringUtils.dasherize(options.name) +
'.reducer';
var relativePath = (0, find_module_1.buildRelativePath)(reducersPath, reducerPath);
var reducerImport = (0, ast_utils_1.insertImport)(source, reducersPath, "* as from".concat(stringUtils.classify(options.name)), relativePath, true);
var stateInterfaceInsert = addReducerToStateInterface(source, reducersPath, options);
var reducerMapInsert = addReducerToActionReducerMap(source, reducersPath, options);
var changes = [reducerImport, stateInterfaceInsert, reducerMapInsert];
var recorder = host.beginUpdate(reducersPath);
try {
for (var changes_1 = __values(changes), changes_1_1 = changes_1.next(); !changes_1_1.done; changes_1_1 = changes_1.next()) {
var change = changes_1_1.value;
if (change instanceof change_1.InsertChange) {
recorder.insertLeft(change.pos, change.toAdd);
}
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (changes_1_1 && !changes_1_1.done && (_a = changes_1.return)) _a.call(changes_1);
}
finally { if (e_1) throw e_1.error; }
}
host.commitUpdate(recorder);
return host;
};
}
exports.addReducerToState = addReducerToState;
/**
* Insert the reducer into the first defined top level interface
*/
function addReducerToStateInterface(source, reducersPath, options) {
var stateInterface = source.statements.find(function (stm) { return stm.kind === ts.SyntaxKind.InterfaceDeclaration; });
var node = stateInterface;
if (!node) {
return new change_1.NoopChange();
}
var state = options.plural
? stringUtils.pluralize(options.name)
: stringUtils.camelize(options.name);
var keyInsert = "[from".concat(stringUtils.classify(options.name), ".").concat(stringUtils.camelize(state), "FeatureKey]: from").concat(stringUtils.classify(options.name), ".State;");
var expr = node;
var position;
var toInsert;
if (expr.members.length === 0) {
position = expr.getEnd() - 1;
toInsert = " ".concat(keyInsert, "\n");
}
else {
node = expr.members[expr.members.length - 1];
position = node.getEnd() + 1;
// Get the indentation of the last element, if any.
var text = node.getFullText(source);
var matches = text.match(/^\r?\n+(\s*)/);
if (matches && matches.length > 0) {
toInsert = "".concat(matches[1]).concat(keyInsert, "\n");
}
else {
toInsert = "\n".concat(keyInsert);
}
}
return new change_1.InsertChange(reducersPath, position, toInsert);
}
exports.addReducerToStateInterface = addReducerToStateInterface;
/**
* Insert the reducer into the ActionReducerMap
*/
function addReducerToActionReducerMap(source, reducersPath, options) {
var initializer;
var actionReducerMap = source.statements
.filter(function (stm) { return stm.kind === ts.SyntaxKind.VariableStatement; })
.filter(function (stm) { return !!stm.declarationList; })
.map(function (stm) {
var declarations = stm.declarationList.declarations;
var variable = declarations.find(function (decl) { return decl.kind === ts.SyntaxKind.VariableDeclaration; });
var type = variable ? variable.type : {};
return { initializer: variable.initializer, type: type };
})
.filter(function (initWithType) { return initWithType.type !== undefined; })
.find(function (_a) {
var type = _a.type;
return type.typeName.text === 'ActionReducerMap';
});
if (!actionReducerMap || !actionReducerMap.initializer) {
return new change_1.NoopChange();
}
var node = actionReducerMap.initializer;
var state = options.plural
? stringUtils.pluralize(options.name)
: stringUtils.camelize(options.name);
var keyInsert = "[from".concat(stringUtils.classify(options.name), ".").concat(stringUtils.camelize(state), "FeatureKey]: from").concat(stringUtils.classify(options.name), ".reducer,");
var expr = node;
var position;
var toInsert;
if (expr.properties.length === 0) {
position = expr.getEnd() - 1;
toInsert = " ".concat(keyInsert, "\n");
}
else {
node = expr.properties[expr.properties.length - 1];
position = node.getEnd() + 1;
// Get the indentation of the last element, if any.
var text = node.getFullText(source);
var matches = text.match(/^\r?\n+(\s*)/);
if (matches && matches.length > 0) {
toInsert = "\n".concat(matches[1]).concat(keyInsert);
}
else {
toInsert = "\n".concat(keyInsert);
}
}
return new change_1.InsertChange(reducersPath, position, toInsert);
}
exports.addReducerToActionReducerMap = addReducerToActionReducerMap;
/**
* Add reducer feature to NgModule
*/
function addReducerImportToNgModule(options) {
return function (host) {
var e_2, _a;
if (!options.module) {
return host;
}
var modulePath = options.module;
if (!host.exists(options.module)) {
throw new Error("Specified module path ".concat(modulePath, " does not exist"));
}
var text = host.read(modulePath);
if (text === null) {
throw new schematics_1.SchematicsException("File ".concat(modulePath, " does not exist."));
}
var sourceText = text.toString('utf-8');
var source = ts.createSourceFile(modulePath, sourceText, ts.ScriptTarget.Latest, true);
var commonImports = [
(0, ast_utils_1.insertImport)(source, modulePath, 'StoreModule', '@ngrx/store'),
];
var reducerPath = "/".concat(options.path, "/") +
(options.flat ? '' : stringUtils.dasherize(options.name) + '/') +
(options.group ? 'reducers/' : '') +
stringUtils.dasherize(options.name) +
'.reducer';
var relativePath = (0, find_module_1.buildRelativePath)(modulePath, reducerPath);
var reducerImport = (0, ast_utils_1.insertImport)(source, modulePath, "* as from".concat(stringUtils.classify(options.name)), relativePath, true);
var state = options.plural
? stringUtils.pluralize(options.name)
: stringUtils.camelize(options.name);
var _b = __read((0, ast_utils_1.addImportToModule)(source, modulePath, "StoreModule.forFeature(from".concat(stringUtils.classify(options.name), ".").concat(state, "FeatureKey, from").concat(stringUtils.classify(options.name), ".reducer)"), relativePath), 1), storeNgModuleImport = _b[0];
var changes = __spreadArray(__spreadArray([], __read(commonImports), false), [reducerImport, storeNgModuleImport], false);
var recorder = host.beginUpdate(modulePath);
try {
for (var changes_2 = __values(changes), changes_2_1 = changes_2.next(); !changes_2_1.done; changes_2_1 = changes_2.next()) {
var change = changes_2_1.value;
if (change instanceof change_1.InsertChange) {
recorder.insertLeft(change.pos, change.toAdd);
}
}
}
catch (e_2_1) { e_2 = { error: e_2_1 }; }
finally {
try {
if (changes_2_1 && !changes_2_1.done && (_a = changes_2.return)) _a.call(changes_2);
}
finally { if (e_2) throw e_2.error; }
}
host.commitUpdate(recorder);
return host;
};
}
exports.addReducerImportToNgModule = addReducerImportToNgModule;
function omit(object, keyToRemove) {
return Object.keys(object)
.filter(function (key) { return key !== keyToRemove; })
.reduce(function (result, key) {
var _a;
return Object.assign(result, (_a = {}, _a[key] = object[key], _a));
}, {});
}
exports.omit = omit;
function getPrefix(options) {
return stringUtils.camelize(options.prefix || 'load');
}
exports.getPrefix = getPrefix;
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