@angular/core
Version:
Angular - the core framework
118 lines • 15.5 kB
JavaScript
(function (factory) {
if (typeof module === "object" && typeof module.exports === "object") {
var v = factory(require, exports);
if (v !== undefined) module.exports = v;
}
else if (typeof define === "function" && define.amd) {
define("@angular/core/schematics/migrations/initial-navigation/collector", ["require", "exports", "typescript", "@angular/core/schematics/migrations/initial-navigation/util"], factory);
}
})(function (require, exports) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.InitialNavigationCollector = void 0;
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
const ts = require("typescript");
const util_1 = require("@angular/core/schematics/migrations/initial-navigation/util");
/** The property name for the options that need to be migrated */
const INITIAL_NAVIGATION = 'initialNavigation';
/**
* Visitor that walks through specified TypeScript nodes and collects all
* found ExtraOptions#InitialNavigation assignments.
*/
class InitialNavigationCollector {
constructor(typeChecker) {
this.typeChecker = typeChecker;
this.assignments = new Set();
}
visitNode(node) {
let extraOptionsLiteral = null;
if (util_1.isRouterModuleForRoot(this.typeChecker, node) && node.arguments.length > 0) {
if (node.arguments.length === 1) {
return;
}
if (ts.isObjectLiteralExpression(node.arguments[1])) {
extraOptionsLiteral = node.arguments[1];
}
else if (ts.isIdentifier(node.arguments[1])) {
extraOptionsLiteral =
this.getLiteralNeedingMigrationFromIdentifier(node.arguments[1]);
}
}
else if (ts.isVariableDeclaration(node)) {
extraOptionsLiteral = this.getLiteralNeedingMigration(node);
}
if (extraOptionsLiteral !== null) {
this.visitExtraOptionsLiteral(extraOptionsLiteral);
}
else {
// no match found, continue iteration
ts.forEachChild(node, n => this.visitNode(n));
}
}
visitExtraOptionsLiteral(extraOptionsLiteral) {
for (const prop of extraOptionsLiteral.properties) {
if (ts.isPropertyAssignment(prop) &&
(ts.isIdentifier(prop.name) || ts.isStringLiteralLike(prop.name))) {
if (prop.name.text === INITIAL_NAVIGATION && isValidInitialNavigationValue(prop)) {
this.assignments.add(prop);
}
}
else if (ts.isSpreadAssignment(prop) && ts.isIdentifier(prop.expression)) {
const literalFromSpreadAssignment = this.getLiteralNeedingMigrationFromIdentifier(prop.expression);
if (literalFromSpreadAssignment !== null) {
this.visitExtraOptionsLiteral(literalFromSpreadAssignment);
}
}
}
}
getLiteralNeedingMigrationFromIdentifier(id) {
const symbolForIdentifier = this.typeChecker.getSymbolAtLocation(id);
if (symbolForIdentifier === undefined) {
return null;
}
if (symbolForIdentifier.declarations.length === 0) {
return null;
}
const declarationNode = symbolForIdentifier.declarations[0];
if (!ts.isVariableDeclaration(declarationNode) || declarationNode.initializer === undefined ||
!ts.isObjectLiteralExpression(declarationNode.initializer)) {
return null;
}
return declarationNode.initializer;
}
getLiteralNeedingMigration(node) {
if (node.initializer === undefined) {
return null;
}
// declaration could be `x: ExtraOptions = {}` or `x = {} as ExtraOptions`
if (ts.isAsExpression(node.initializer) &&
ts.isObjectLiteralExpression(node.initializer.expression) &&
util_1.isExtraOptions(this.typeChecker, node.initializer.type)) {
return node.initializer.expression;
}
else if (node.type !== undefined && ts.isObjectLiteralExpression(node.initializer) &&
util_1.isExtraOptions(this.typeChecker, node.type)) {
return node.initializer;
}
return null;
}
}
exports.InitialNavigationCollector = InitialNavigationCollector;
/**
* Check whether the value assigned to an `initialNavigation` assignment
* conforms to the expected types for ExtraOptions#InitialNavigation
* @param node the property assignment to check
*/
function isValidInitialNavigationValue(node) {
return ts.isStringLiteralLike(node.initializer) ||
node.initializer.kind === ts.SyntaxKind.FalseKeyword ||
node.initializer.kind === ts.SyntaxKind.TrueKeyword;
}
});
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"collector.js","sourceRoot":"","sources":["../../../../../../../../packages/core/schematics/migrations/initial-navigation/collector.ts"],"names":[],"mappings":";;;;;;;;;;;;IAAA;;;;;;OAMG;IACH,iCAAiC;IACjC,sFAA6D;IAG7D,iEAAiE;IACjE,MAAM,kBAAkB,GAAG,mBAAmB,CAAC;IAE/C;;;OAGG;IACH,MAAa,0BAA0B;QAGrC,YAA6B,WAA2B;YAA3B,gBAAW,GAAX,WAAW,CAAgB;YAFjD,gBAAW,GAA+B,IAAI,GAAG,EAAE,CAAC;QAEA,CAAC;QAE5D,SAAS,CAAC,IAAa;YACrB,IAAI,mBAAmB,GAAoC,IAAI,CAAC;YAChE,IAAI,4BAAqB,CAAC,IAAI,CAAC,WAAW,EAAE,IAAI,CAAC,IAAI,IAAI,CAAC,SAAS,CAAC,MAAM,GAAG,CAAC,EAAE;gBAC9E,IAAI,IAAI,CAAC,SAAS,CAAC,MAAM,KAAK,CAAC,EAAE;oBAC/B,OAAO;iBACR;gBAED,IAAI,EAAE,CAAC,yBAAyB,CAAC,IAAI,CAAC,SAAS,CAAC,CAAC,CAAC,CAAC,EAAE;oBACnD,mBAAmB,GAAG,IAAI,CAAC,SAAS,CAAC,CAAC,CAA+B,CAAC;iBACvE;qBAAM,IAAI,EAAE,CAAC,YAAY,CAAC,IAAI,CAAC,SAAS,CAAC,CAAC,CAAC,CAAC,EAAE;oBAC7C,mBAAmB;wBACf,IAAI,CAAC,wCAAwC,CAAC,IAAI,CAAC,SAAS,CAAC,CAAC,CAAkB,CAAC,CAAC;iBACvF;aACF;iBAAM,IAAI,EAAE,CAAC,qBAAqB,CAAC,IAAI,CAAC,EAAE;gBACzC,mBAAmB,GAAG,IAAI,CAAC,0BAA0B,CAAC,IAAI,CAAC,CAAC;aAC7D;YAED,IAAI,mBAAmB,KAAK,IAAI,EAAE;gBAChC,IAAI,CAAC,wBAAwB,CAAC,mBAAmB,CAAC,CAAC;aACpD;iBAAM;gBACL,qCAAqC;gBACrC,EAAE,CAAC,YAAY,CAAC,IAAI,EAAE,CAAC,CAAC,EAAE,CAAC,IAAI,CAAC,SAAS,CAAC,CAAC,CAAC,CAAC,CAAC;aAC/C;QACH,CAAC;QAED,wBAAwB,CAAC,mBAA+C;YACtE,KAAK,MAAM,IAAI,IAAI,mBAAmB,CAAC,UAAU,EAAE;gBACjD,IAAI,EAAE,CAAC,oBAAoB,CAAC,IAAI,CAAC;oBAC7B,CAAC,EAAE,CAAC,YAAY,CAAC,IAAI,CAAC,IAAI,CAAC,IAAI,EAAE,CAAC,mBAAmB,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,EAAE;oBACrE,IAAI,IAAI,CAAC,IAAI,CAAC,IAAI,KAAK,kBAAkB,IAAI,6BAA6B,CAAC,IAAI,CAAC,EAAE;wBAChF,IAAI,CAAC,WAAW,CAAC,GAAG,CAAC,IAAI,CAAC,CAAC;qBAC5B;iBACF;qBAAM,IAAI,EAAE,CAAC,kBAAkB,CAAC,IAAI,CAAC,IAAI,EAAE,CAAC,YAAY,CAAC,IAAI,CAAC,UAAU,CAAC,EAAE;oBAC1E,MAAM,2BAA2B,GAC7B,IAAI,CAAC,wCAAwC,CAAC,IAAI,CAAC,UAAU,CAAC,CAAC;oBACnE,IAAI,2BAA2B,KAAK,IAAI,EAAE;wBACxC,IAAI,CAAC,wBAAwB,CAAC,2BAA2B,CAAC,CAAC;qBAC5D;iBACF;aACF;QACH,CAAC;QAEO,wCAAwC,CAAC,EAAiB;YAEhE,MAAM,mBAAmB,GAAG,IAAI,CAAC,WAAW,CAAC,mBAAmB,CAAC,EAAE,CAAC,CAAC;YACrE,IAAI,mBAAmB,KAAK,SAAS,EAAE;gBACrC,OAAO,IAAI,CAAC;aACb;YAED,IAAI,mBAAmB,CAAC,YAAY,CAAC,MAAM,KAAK,CAAC,EAAE;gBACjD,OAAO,IAAI,CAAC;aACb;YAED,MAAM,eAAe,GAAG,mBAAmB,CAAC,YAAY,CAAC,CAAC,CAAC,CAAC;YAC5D,IAAI,CAAC,EAAE,CAAC,qBAAqB,CAAC,eAAe,CAAC,IAAI,eAAe,CAAC,WAAW,KAAK,SAAS;gBACvF,CAAC,EAAE,CAAC,yBAAyB,CAAC,eAAe,CAAC,WAAW,CAAC,EAAE;gBAC9D,OAAO,IAAI,CAAC;aACb;YAED,OAAO,eAAe,CAAC,WAAW,CAAC;QACrC,CAAC;QAEO,0BAA0B,CAAC,IAA4B;YAE7D,IAAI,IAAI,CAAC,WAAW,KAAK,SAAS,EAAE;gBAClC,OAAO,IAAI,CAAC;aACb;YAED,0EAA0E;YAC1E,IAAI,EAAE,CAAC,cAAc,CAAC,IAAI,CAAC,WAAW,CAAC;gBACnC,EAAE,CAAC,yBAAyB,CAAC,IAAI,CAAC,WAAW,CAAC,UAAU,CAAC;gBACzD,qBAAc,CAAC,IAAI,CAAC,WAAW,EAAE,IAAI,CAAC,WAAW,CAAC,IAAI,CAAC,EAAE;gBAC3D,OAAO,IAAI,CAAC,WAAW,CAAC,UAAU,CAAC;aACpC;iBAAM,IACH,IAAI,CAAC,IAAI,KAAK,SAAS,IAAI,EAAE,CAAC,yBAAyB,CAAC,IAAI,CAAC,WAAW,CAAC;gBACzE,qBAAc,CAAC,IAAI,CAAC,WAAW,EAAE,IAAI,CAAC,IAAI,CAAC,EAAE;gBAC/C,OAAO,IAAI,CAAC,WAAW,CAAC;aACzB;YAED,OAAO,IAAI,CAAC;QACd,CAAC;KACF;IAtFD,gEAsFC;IAED;;;;OAIG;IACH,SAAS,6BAA6B,CAAC,IAA2B;QAChE,OAAO,EAAE,CAAC,mBAAmB,CAAC,IAAI,CAAC,WAAW,CAAC;YAC3C,IAAI,CAAC,WAAW,CAAC,IAAI,KAAK,EAAE,CAAC,UAAU,CAAC,YAAY;YACpD,IAAI,CAAC,WAAW,CAAC,IAAI,KAAK,EAAE,CAAC,UAAU,CAAC,WAAW,CAAC;IAC1D,CAAC","sourcesContent":["/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport * as ts from 'typescript';\nimport {isExtraOptions, isRouterModuleForRoot} from './util';\n\n\n/** The property name for the options that need to be migrated */\nconst INITIAL_NAVIGATION = 'initialNavigation';\n\n/**\n * Visitor that walks through specified TypeScript nodes and collects all\n * found ExtraOptions#InitialNavigation assignments.\n */\nexport class InitialNavigationCollector {\n  public assignments: Set<ts.PropertyAssignment> = new Set();\n\n  constructor(private readonly typeChecker: ts.TypeChecker) {}\n\n  visitNode(node: ts.Node) {\n    let extraOptionsLiteral: ts.ObjectLiteralExpression|null = null;\n    if (isRouterModuleForRoot(this.typeChecker, node) && node.arguments.length > 0) {\n      if (node.arguments.length === 1) {\n        return;\n      }\n\n      if (ts.isObjectLiteralExpression(node.arguments[1])) {\n        extraOptionsLiteral = node.arguments[1] as ts.ObjectLiteralExpression;\n      } else if (ts.isIdentifier(node.arguments[1])) {\n        extraOptionsLiteral =\n            this.getLiteralNeedingMigrationFromIdentifier(node.arguments[1] as ts.Identifier);\n      }\n    } else if (ts.isVariableDeclaration(node)) {\n      extraOptionsLiteral = this.getLiteralNeedingMigration(node);\n    }\n\n    if (extraOptionsLiteral !== null) {\n      this.visitExtraOptionsLiteral(extraOptionsLiteral);\n    } else {\n      // no match found, continue iteration\n      ts.forEachChild(node, n => this.visitNode(n));\n    }\n  }\n\n  visitExtraOptionsLiteral(extraOptionsLiteral: ts.ObjectLiteralExpression) {\n    for (const prop of extraOptionsLiteral.properties) {\n      if (ts.isPropertyAssignment(prop) &&\n          (ts.isIdentifier(prop.name) || ts.isStringLiteralLike(prop.name))) {\n        if (prop.name.text === INITIAL_NAVIGATION && isValidInitialNavigationValue(prop)) {\n          this.assignments.add(prop);\n        }\n      } else if (ts.isSpreadAssignment(prop) && ts.isIdentifier(prop.expression)) {\n        const literalFromSpreadAssignment =\n            this.getLiteralNeedingMigrationFromIdentifier(prop.expression);\n        if (literalFromSpreadAssignment !== null) {\n          this.visitExtraOptionsLiteral(literalFromSpreadAssignment);\n        }\n      }\n    }\n  }\n\n  private getLiteralNeedingMigrationFromIdentifier(id: ts.Identifier): ts.ObjectLiteralExpression\n      |null {\n    const symbolForIdentifier = this.typeChecker.getSymbolAtLocation(id);\n    if (symbolForIdentifier === undefined) {\n      return null;\n    }\n\n    if (symbolForIdentifier.declarations.length === 0) {\n      return null;\n    }\n\n    const declarationNode = symbolForIdentifier.declarations[0];\n    if (!ts.isVariableDeclaration(declarationNode) || declarationNode.initializer === undefined ||\n        !ts.isObjectLiteralExpression(declarationNode.initializer)) {\n      return null;\n    }\n\n    return declarationNode.initializer;\n  }\n\n  private getLiteralNeedingMigration(node: ts.VariableDeclaration): ts.ObjectLiteralExpression\n      |null {\n    if (node.initializer === undefined) {\n      return null;\n    }\n\n    // declaration could be `x: ExtraOptions = {}` or `x = {} as ExtraOptions`\n    if (ts.isAsExpression(node.initializer) &&\n        ts.isObjectLiteralExpression(node.initializer.expression) &&\n        isExtraOptions(this.typeChecker, node.initializer.type)) {\n      return node.initializer.expression;\n    } else if (\n        node.type !== undefined && ts.isObjectLiteralExpression(node.initializer) &&\n        isExtraOptions(this.typeChecker, node.type)) {\n      return node.initializer;\n    }\n\n    return null;\n  }\n}\n\n/**\n * Check whether the value assigned to an `initialNavigation` assignment\n * conforms to the expected types for ExtraOptions#InitialNavigation\n * @param node the property assignment to check\n */\nfunction isValidInitialNavigationValue(node: ts.PropertyAssignment): boolean {\n  return ts.isStringLiteralLike(node.initializer) ||\n      node.initializer.kind === ts.SyntaxKind.FalseKeyword ||\n      node.initializer.kind === ts.SyntaxKind.TrueKeyword;\n}\n"]}