760 lines
32 KiB
TypeScript
760 lines
32 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {Attribute, Component, ContentChild, ContentChildren, Directive, Host, HostBinding, HostListener, Inject, Injectable, Input, NgModule, Optional, Output, Pipe, Self, SkipSelf, ViewChild, ViewChildren, animate, group, keyframes, sequence, state, style, transition, trigger} from '@angular/core';
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import {CompileSummaryKind} from '../compile_metadata';
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import {CompileReflector} from '../compile_reflector';
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import * as o from '../output/output_ast';
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import {SummaryResolver} from '../summary_resolver';
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import {syntaxError} from '../util';
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import {StaticSymbol} from './static_symbol';
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import {StaticSymbolResolver} from './static_symbol_resolver';
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const ANGULAR_CORE = '@angular/core';
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const ANGULAR_ROUTER = '@angular/router';
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const HIDDEN_KEY = /^\$.*\$$/;
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const IGNORE = {
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__symbolic: 'ignore'
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};
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const USE_VALUE = 'useValue';
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const PROVIDE = 'provide';
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const REFERENCE_SET = new Set([USE_VALUE, 'useFactory', 'data']);
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function shouldIgnore(value: any): boolean {
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return value && value.__symbolic == 'ignore';
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}
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/**
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* A static reflector implements enough of the Reflector API that is necessary to compile
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* templates statically.
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*/
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export class StaticReflector implements CompileReflector {
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private annotationCache = new Map<StaticSymbol, any[]>();
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private propertyCache = new Map<StaticSymbol, {[key: string]: any[]}>();
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private parameterCache = new Map<StaticSymbol, any[]>();
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private methodCache = new Map<StaticSymbol, {[key: string]: boolean}>();
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private conversionMap = new Map<StaticSymbol, (context: StaticSymbol, args: any[]) => any>();
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private injectionToken: StaticSymbol;
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private opaqueToken: StaticSymbol;
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private ROUTES: StaticSymbol;
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private ANALYZE_FOR_ENTRY_COMPONENTS: StaticSymbol;
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private annotationForParentClassWithSummaryKind = new Map<CompileSummaryKind, any[]>();
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private annotationNames = new Map<any, string>();
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constructor(
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private summaryResolver: SummaryResolver<StaticSymbol>,
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private symbolResolver: StaticSymbolResolver,
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knownMetadataClasses: {name: string, filePath: string, ctor: any}[] = [],
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knownMetadataFunctions: {name: string, filePath: string, fn: any}[] = [],
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private errorRecorder?: (error: any, fileName?: string) => void) {
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this.initializeConversionMap();
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knownMetadataClasses.forEach(
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(kc) => this._registerDecoratorOrConstructor(
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this.getStaticSymbol(kc.filePath, kc.name), kc.ctor));
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knownMetadataFunctions.forEach(
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(kf) => this._registerFunction(this.getStaticSymbol(kf.filePath, kf.name), kf.fn));
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this.annotationForParentClassWithSummaryKind.set(
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CompileSummaryKind.Directive, [Directive, Component]);
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this.annotationForParentClassWithSummaryKind.set(CompileSummaryKind.Pipe, [Pipe]);
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this.annotationForParentClassWithSummaryKind.set(CompileSummaryKind.NgModule, [NgModule]);
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this.annotationForParentClassWithSummaryKind.set(
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CompileSummaryKind.Injectable, [Injectable, Pipe, Directive, Component, NgModule]);
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this.annotationNames.set(Directive, 'Directive');
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this.annotationNames.set(Component, 'Component');
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this.annotationNames.set(Pipe, 'Pipe');
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this.annotationNames.set(NgModule, 'NgModule');
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this.annotationNames.set(Injectable, 'Injectable');
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}
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componentModuleUrl(typeOrFunc: StaticSymbol): string {
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const staticSymbol = this.findSymbolDeclaration(typeOrFunc);
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return this.symbolResolver.getResourcePath(staticSymbol);
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}
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resolveExternalReference(ref: o.ExternalReference): StaticSymbol {
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const importSymbol = this.getStaticSymbol(ref.moduleName !, ref.name !);
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const rootSymbol = this.findDeclaration(ref.moduleName !, ref.name !);
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if (importSymbol != rootSymbol) {
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this.symbolResolver.recordImportAs(rootSymbol, importSymbol);
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}
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return rootSymbol;
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}
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findDeclaration(moduleUrl: string, name: string, containingFile?: string): StaticSymbol {
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return this.findSymbolDeclaration(
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this.symbolResolver.getSymbolByModule(moduleUrl, name, containingFile));
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}
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tryFindDeclaration(moduleUrl: string, name: string): StaticSymbol {
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return this.symbolResolver.ignoreErrorsFor(() => this.findDeclaration(moduleUrl, name));
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}
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findSymbolDeclaration(symbol: StaticSymbol): StaticSymbol {
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const resolvedSymbol = this.symbolResolver.resolveSymbol(symbol);
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if (resolvedSymbol && resolvedSymbol.metadata instanceof StaticSymbol) {
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return this.findSymbolDeclaration(resolvedSymbol.metadata);
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} else {
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return symbol;
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}
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}
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public annotations(type: StaticSymbol): any[] {
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let annotations = this.annotationCache.get(type);
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if (!annotations) {
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annotations = [];
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const classMetadata = this.getTypeMetadata(type);
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const parentType = this.findParentType(type, classMetadata);
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if (parentType) {
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const parentAnnotations = this.annotations(parentType);
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annotations.push(...parentAnnotations);
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}
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let ownAnnotations: any[] = [];
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if (classMetadata['decorators']) {
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ownAnnotations = this.simplify(type, classMetadata['decorators']);
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annotations.push(...ownAnnotations);
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}
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if (parentType && !this.summaryResolver.isLibraryFile(type.filePath) &&
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this.summaryResolver.isLibraryFile(parentType.filePath)) {
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const summary = this.summaryResolver.resolveSummary(parentType);
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if (summary && summary.type) {
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const requiredAnnotationTypes =
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this.annotationForParentClassWithSummaryKind.get(summary.type.summaryKind !) !;
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const typeHasRequiredAnnotation = requiredAnnotationTypes.some(
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(requiredType: any) => ownAnnotations.some(ann => ann instanceof requiredType));
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if (!typeHasRequiredAnnotation) {
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this.reportError(
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syntaxError(
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`Class ${type.name} in ${type.filePath} extends from a ${CompileSummaryKind[summary.type.summaryKind!]} in another compilation unit without duplicating the decorator. ` +
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`Please add a ${requiredAnnotationTypes.map((type: any) => this.annotationNames.get(type)).join(' or ')} decorator to the class.`),
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type);
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}
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}
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}
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this.annotationCache.set(type, annotations.filter(ann => !!ann));
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}
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return annotations;
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}
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public propMetadata(type: StaticSymbol): {[key: string]: any[]} {
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let propMetadata = this.propertyCache.get(type);
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if (!propMetadata) {
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const classMetadata = this.getTypeMetadata(type);
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propMetadata = {};
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const parentType = this.findParentType(type, classMetadata);
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if (parentType) {
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const parentPropMetadata = this.propMetadata(parentType);
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Object.keys(parentPropMetadata).forEach((parentProp) => {
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propMetadata ![parentProp] = parentPropMetadata[parentProp];
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});
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}
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const members = classMetadata['members'] || {};
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Object.keys(members).forEach((propName) => {
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const propData = members[propName];
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const prop = (<any[]>propData)
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.find(a => a['__symbolic'] == 'property' || a['__symbolic'] == 'method');
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const decorators: any[] = [];
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if (propMetadata ![propName]) {
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decorators.push(...propMetadata ![propName]);
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}
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propMetadata ![propName] = decorators;
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if (prop && prop['decorators']) {
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decorators.push(...this.simplify(type, prop['decorators']));
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}
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});
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this.propertyCache.set(type, propMetadata);
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}
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return propMetadata;
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}
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public parameters(type: StaticSymbol): any[] {
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if (!(type instanceof StaticSymbol)) {
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this.reportError(
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new Error(`parameters received ${JSON.stringify(type)} which is not a StaticSymbol`),
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type);
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return [];
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}
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try {
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let parameters = this.parameterCache.get(type);
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if (!parameters) {
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const classMetadata = this.getTypeMetadata(type);
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const parentType = this.findParentType(type, classMetadata);
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const members = classMetadata ? classMetadata['members'] : null;
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const ctorData = members ? members['__ctor__'] : null;
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if (ctorData) {
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const ctor = (<any[]>ctorData).find(a => a['__symbolic'] == 'constructor');
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const rawParameterTypes = <any[]>ctor['parameters'] || [];
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const parameterDecorators = <any[]>this.simplify(type, ctor['parameterDecorators'] || []);
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parameters = [];
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rawParameterTypes.forEach((rawParamType, index) => {
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const nestedResult: any[] = [];
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const paramType = this.trySimplify(type, rawParamType);
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if (paramType) nestedResult.push(paramType);
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const decorators = parameterDecorators ? parameterDecorators[index] : null;
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if (decorators) {
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nestedResult.push(...decorators);
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}
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parameters !.push(nestedResult);
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});
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} else if (parentType) {
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parameters = this.parameters(parentType);
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}
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if (!parameters) {
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parameters = [];
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}
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this.parameterCache.set(type, parameters);
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}
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return parameters;
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} catch (e) {
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console.error(`Failed on type ${JSON.stringify(type)} with error ${e}`);
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throw e;
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}
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}
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private _methodNames(type: any): {[key: string]: boolean} {
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let methodNames = this.methodCache.get(type);
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if (!methodNames) {
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const classMetadata = this.getTypeMetadata(type);
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methodNames = {};
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const parentType = this.findParentType(type, classMetadata);
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if (parentType) {
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const parentMethodNames = this._methodNames(parentType);
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Object.keys(parentMethodNames).forEach((parentProp) => {
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methodNames ![parentProp] = parentMethodNames[parentProp];
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});
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}
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const members = classMetadata['members'] || {};
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Object.keys(members).forEach((propName) => {
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const propData = members[propName];
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const isMethod = (<any[]>propData).some(a => a['__symbolic'] == 'method');
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methodNames ![propName] = methodNames ![propName] || isMethod;
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});
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this.methodCache.set(type, methodNames);
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}
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return methodNames;
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}
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private findParentType(type: StaticSymbol, classMetadata: any): StaticSymbol|undefined {
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const parentType = this.trySimplify(type, classMetadata['extends']);
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if (parentType instanceof StaticSymbol) {
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return parentType;
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}
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}
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hasLifecycleHook(type: any, lcProperty: string): boolean {
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if (!(type instanceof StaticSymbol)) {
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this.reportError(
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new Error(
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`hasLifecycleHook received ${JSON.stringify(type)} which is not a StaticSymbol`),
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type);
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}
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try {
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return !!this._methodNames(type)[lcProperty];
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} catch (e) {
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console.error(`Failed on type ${JSON.stringify(type)} with error ${e}`);
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throw e;
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}
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}
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private _registerDecoratorOrConstructor(type: StaticSymbol, ctor: any): void {
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this.conversionMap.set(type, (context: StaticSymbol, args: any[]) => new ctor(...args));
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}
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private _registerFunction(type: StaticSymbol, fn: any): void {
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this.conversionMap.set(type, (context: StaticSymbol, args: any[]) => fn.apply(undefined, args));
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}
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private initializeConversionMap(): void {
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this.injectionToken = this.findDeclaration(ANGULAR_CORE, 'InjectionToken');
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this.opaqueToken = this.findDeclaration(ANGULAR_CORE, 'OpaqueToken');
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this.ROUTES = this.tryFindDeclaration(ANGULAR_ROUTER, 'ROUTES');
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this.ANALYZE_FOR_ENTRY_COMPONENTS =
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this.findDeclaration(ANGULAR_CORE, 'ANALYZE_FOR_ENTRY_COMPONENTS');
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this._registerDecoratorOrConstructor(this.findDeclaration(ANGULAR_CORE, 'Host'), Host);
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this._registerDecoratorOrConstructor(
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this.findDeclaration(ANGULAR_CORE, 'Injectable'), Injectable);
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this._registerDecoratorOrConstructor(this.findDeclaration(ANGULAR_CORE, 'Self'), Self);
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this._registerDecoratorOrConstructor(this.findDeclaration(ANGULAR_CORE, 'SkipSelf'), SkipSelf);
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this._registerDecoratorOrConstructor(this.findDeclaration(ANGULAR_CORE, 'Inject'), Inject);
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this._registerDecoratorOrConstructor(this.findDeclaration(ANGULAR_CORE, 'Optional'), Optional);
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this._registerDecoratorOrConstructor(
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this.findDeclaration(ANGULAR_CORE, 'Attribute'), Attribute);
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this._registerDecoratorOrConstructor(
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this.findDeclaration(ANGULAR_CORE, 'ContentChild'), ContentChild);
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this._registerDecoratorOrConstructor(
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this.findDeclaration(ANGULAR_CORE, 'ContentChildren'), ContentChildren);
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this._registerDecoratorOrConstructor(
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this.findDeclaration(ANGULAR_CORE, 'ViewChild'), ViewChild);
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this._registerDecoratorOrConstructor(
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this.findDeclaration(ANGULAR_CORE, 'ViewChildren'), ViewChildren);
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this._registerDecoratorOrConstructor(this.findDeclaration(ANGULAR_CORE, 'Input'), Input);
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this._registerDecoratorOrConstructor(this.findDeclaration(ANGULAR_CORE, 'Output'), Output);
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this._registerDecoratorOrConstructor(this.findDeclaration(ANGULAR_CORE, 'Pipe'), Pipe);
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this._registerDecoratorOrConstructor(
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this.findDeclaration(ANGULAR_CORE, 'HostBinding'), HostBinding);
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this._registerDecoratorOrConstructor(
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this.findDeclaration(ANGULAR_CORE, 'HostListener'), HostListener);
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this._registerDecoratorOrConstructor(
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this.findDeclaration(ANGULAR_CORE, 'Directive'), Directive);
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this._registerDecoratorOrConstructor(
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this.findDeclaration(ANGULAR_CORE, 'Component'), Component);
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this._registerDecoratorOrConstructor(this.findDeclaration(ANGULAR_CORE, 'NgModule'), NgModule);
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// Note: Some metadata classes can be used directly with Provider.deps.
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this._registerDecoratorOrConstructor(this.findDeclaration(ANGULAR_CORE, 'Host'), Host);
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this._registerDecoratorOrConstructor(this.findDeclaration(ANGULAR_CORE, 'Self'), Self);
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this._registerDecoratorOrConstructor(this.findDeclaration(ANGULAR_CORE, 'SkipSelf'), SkipSelf);
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this._registerDecoratorOrConstructor(this.findDeclaration(ANGULAR_CORE, 'Optional'), Optional);
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this._registerFunction(this.findDeclaration(ANGULAR_CORE, 'trigger'), trigger);
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this._registerFunction(this.findDeclaration(ANGULAR_CORE, 'state'), state);
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this._registerFunction(this.findDeclaration(ANGULAR_CORE, 'transition'), transition);
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this._registerFunction(this.findDeclaration(ANGULAR_CORE, 'style'), style);
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this._registerFunction(this.findDeclaration(ANGULAR_CORE, 'animate'), animate);
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this._registerFunction(this.findDeclaration(ANGULAR_CORE, 'keyframes'), keyframes);
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this._registerFunction(this.findDeclaration(ANGULAR_CORE, 'sequence'), sequence);
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this._registerFunction(this.findDeclaration(ANGULAR_CORE, 'group'), group);
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}
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/**
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* getStaticSymbol produces a Type whose metadata is known but whose implementation is not loaded.
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* All types passed to the StaticResolver should be pseudo-types returned by this method.
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*
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* @param declarationFile the absolute path of the file where the symbol is declared
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* @param name the name of the type.
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*/
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getStaticSymbol(declarationFile: string, name: string, members?: string[]): StaticSymbol {
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return this.symbolResolver.getStaticSymbol(declarationFile, name, members);
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}
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private reportError(error: Error, context: StaticSymbol, path?: string) {
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if (this.errorRecorder) {
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this.errorRecorder(error, (context && context.filePath) || path);
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} else {
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throw error;
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}
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}
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/**
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* Simplify but discard any errors
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*/
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private trySimplify(context: StaticSymbol, value: any): any {
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const originalRecorder = this.errorRecorder;
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this.errorRecorder = (error: any, fileName: string) => {};
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const result = this.simplify(context, value);
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this.errorRecorder = originalRecorder;
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return result;
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}
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/** @internal */
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public simplify(context: StaticSymbol, value: any): any {
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const self = this;
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let scope = BindingScope.empty;
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const calling = new Map<StaticSymbol, boolean>();
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function simplifyInContext(
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context: StaticSymbol, value: any, depth: number, references: number): any {
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function resolveReferenceValue(staticSymbol: StaticSymbol): any {
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const resolvedSymbol = self.symbolResolver.resolveSymbol(staticSymbol);
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return resolvedSymbol ? resolvedSymbol.metadata : null;
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}
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function simplifyCall(functionSymbol: StaticSymbol, targetFunction: any, args: any[]) {
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if (targetFunction && targetFunction['__symbolic'] == 'function') {
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if (calling.get(functionSymbol)) {
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throw new Error('Recursion not supported');
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}
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try {
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const value = targetFunction['value'];
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if (value && (depth != 0 || value.__symbolic != 'error')) {
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const parameters: string[] = targetFunction['parameters'];
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const defaults: any[] = targetFunction.defaults;
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args = args.map(arg => simplifyInContext(context, arg, depth + 1, references))
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.map(arg => shouldIgnore(arg) ? undefined : arg);
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if (defaults && defaults.length > args.length) {
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args.push(...defaults.slice(args.length).map((value: any) => simplify(value)));
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}
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calling.set(functionSymbol, true);
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const functionScope = BindingScope.build();
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for (let i = 0; i < parameters.length; i++) {
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functionScope.define(parameters[i], args[i]);
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}
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const oldScope = scope;
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let result: any;
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try {
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scope = functionScope.done();
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result = simplifyInContext(functionSymbol, value, depth + 1, references);
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} finally {
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scope = oldScope;
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}
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return result;
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}
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} finally {
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calling.delete(functionSymbol);
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}
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}
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if (depth === 0) {
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// If depth is 0 we are evaluating the top level expression that is describing element
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// decorator. In this case, it is a decorator we don't understand, such as a custom
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// non-angular decorator, and we should just ignore it.
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return IGNORE;
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}
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return simplify(
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{__symbolic: 'error', message: 'Function call not supported', context: functionSymbol});
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}
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function simplify(expression: any): any {
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if (isPrimitive(expression)) {
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return expression;
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}
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if (expression instanceof Array) {
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const result: any[] = [];
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for (const item of (<any>expression)) {
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// Check for a spread expression
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if (item && item.__symbolic === 'spread') {
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const spreadArray = simplify(item.expression);
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if (Array.isArray(spreadArray)) {
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for (const spreadItem of spreadArray) {
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result.push(spreadItem);
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}
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continue;
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}
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}
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const value = simplify(item);
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if (shouldIgnore(value)) {
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continue;
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}
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result.push(value);
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}
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return result;
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}
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if (expression instanceof StaticSymbol) {
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// Stop simplification at builtin symbols or if we are in a reference context
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if (expression === self.injectionToken || expression === self.opaqueToken ||
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self.conversionMap.has(expression) || references > 0) {
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return expression;
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} else {
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const staticSymbol = expression;
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const declarationValue = resolveReferenceValue(staticSymbol);
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if (declarationValue) {
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return simplifyInContext(staticSymbol, declarationValue, depth + 1, references);
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} else {
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return staticSymbol;
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}
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}
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}
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if (expression) {
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if (expression['__symbolic']) {
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let staticSymbol: StaticSymbol;
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switch (expression['__symbolic']) {
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case 'binop':
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let left = simplify(expression['left']);
|
|
if (shouldIgnore(left)) return left;
|
|
let right = simplify(expression['right']);
|
|
if (shouldIgnore(right)) return right;
|
|
switch (expression['operator']) {
|
|
case '&&':
|
|
return left && right;
|
|
case '||':
|
|
return left || right;
|
|
case '|':
|
|
return left | right;
|
|
case '^':
|
|
return left ^ right;
|
|
case '&':
|
|
return left & right;
|
|
case '==':
|
|
return left == right;
|
|
case '!=':
|
|
return left != right;
|
|
case '===':
|
|
return left === right;
|
|
case '!==':
|
|
return left !== right;
|
|
case '<':
|
|
return left < right;
|
|
case '>':
|
|
return left > right;
|
|
case '<=':
|
|
return left <= right;
|
|
case '>=':
|
|
return left >= right;
|
|
case '<<':
|
|
return left << right;
|
|
case '>>':
|
|
return left >> right;
|
|
case '+':
|
|
return left + right;
|
|
case '-':
|
|
return left - right;
|
|
case '*':
|
|
return left * right;
|
|
case '/':
|
|
return left / right;
|
|
case '%':
|
|
return left % right;
|
|
}
|
|
return null;
|
|
case 'if':
|
|
let condition = simplify(expression['condition']);
|
|
return condition ? simplify(expression['thenExpression']) :
|
|
simplify(expression['elseExpression']);
|
|
case 'pre':
|
|
let operand = simplify(expression['operand']);
|
|
if (shouldIgnore(operand)) return operand;
|
|
switch (expression['operator']) {
|
|
case '+':
|
|
return operand;
|
|
case '-':
|
|
return -operand;
|
|
case '!':
|
|
return !operand;
|
|
case '~':
|
|
return ~operand;
|
|
}
|
|
return null;
|
|
case 'index':
|
|
let indexTarget = simplify(expression['expression']);
|
|
let index = simplify(expression['index']);
|
|
if (indexTarget && isPrimitive(index)) return indexTarget[index];
|
|
return null;
|
|
case 'select':
|
|
const member = expression['member'];
|
|
let selectContext = context;
|
|
let selectTarget = simplify(expression['expression']);
|
|
if (selectTarget instanceof StaticSymbol) {
|
|
const members = selectTarget.members.concat(member);
|
|
selectContext =
|
|
self.getStaticSymbol(selectTarget.filePath, selectTarget.name, members);
|
|
const declarationValue = resolveReferenceValue(selectContext);
|
|
if (declarationValue) {
|
|
return simplifyInContext(
|
|
selectContext, declarationValue, depth + 1, references);
|
|
} else {
|
|
return selectContext;
|
|
}
|
|
}
|
|
if (selectTarget && isPrimitive(member))
|
|
return simplifyInContext(
|
|
selectContext, selectTarget[member], depth + 1, references);
|
|
return null;
|
|
case 'reference':
|
|
// Note: This only has to deal with variable references,
|
|
// as symbol references have been converted into StaticSymbols already
|
|
// in the StaticSymbolResolver!
|
|
const name: string = expression['name'];
|
|
const localValue = scope.resolve(name);
|
|
if (localValue != BindingScope.missing) {
|
|
return localValue;
|
|
}
|
|
break;
|
|
case 'class':
|
|
return context;
|
|
case 'function':
|
|
return context;
|
|
case 'new':
|
|
case 'call':
|
|
// Determine if the function is a built-in conversion
|
|
staticSymbol = simplifyInContext(
|
|
context, expression['expression'], depth + 1, /* references */ 0);
|
|
if (staticSymbol instanceof StaticSymbol) {
|
|
if (staticSymbol === self.injectionToken || staticSymbol === self.opaqueToken) {
|
|
// if somebody calls new InjectionToken, don't create an InjectionToken,
|
|
// but rather return the symbol to which the InjectionToken is assigned to.
|
|
return context;
|
|
}
|
|
const argExpressions: any[] = expression['arguments'] || [];
|
|
let converter = self.conversionMap.get(staticSymbol);
|
|
if (converter) {
|
|
const args =
|
|
argExpressions
|
|
.map(arg => simplifyInContext(context, arg, depth + 1, references))
|
|
.map(arg => shouldIgnore(arg) ? undefined : arg);
|
|
return converter(context, args);
|
|
} else {
|
|
// Determine if the function is one we can simplify.
|
|
const targetFunction = resolveReferenceValue(staticSymbol);
|
|
return simplifyCall(staticSymbol, targetFunction, argExpressions);
|
|
}
|
|
}
|
|
return IGNORE;
|
|
case 'error':
|
|
let message = produceErrorMessage(expression);
|
|
if (expression['line']) {
|
|
message =
|
|
`${message} (position ${expression['line']+1}:${expression['character']+1} in the original .ts file)`;
|
|
self.reportError(
|
|
positionalError(
|
|
message, context.filePath, expression['line'], expression['character']),
|
|
context);
|
|
} else {
|
|
self.reportError(new Error(message), context);
|
|
}
|
|
return IGNORE;
|
|
case 'ignore':
|
|
return expression;
|
|
}
|
|
return null;
|
|
}
|
|
return mapStringMap(expression, (value, name) => {
|
|
if (REFERENCE_SET.has(name)) {
|
|
if (name === USE_VALUE && PROVIDE in expression) {
|
|
// If this is a provider expression, check for special tokens that need the value
|
|
// during analysis.
|
|
const provide = simplify(expression.provide);
|
|
if (provide === self.ROUTES || provide == self.ANALYZE_FOR_ENTRY_COMPONENTS) {
|
|
return simplify(value);
|
|
}
|
|
}
|
|
return simplifyInContext(context, value, depth, references + 1);
|
|
}
|
|
return simplify(value);
|
|
});
|
|
}
|
|
return IGNORE;
|
|
}
|
|
|
|
try {
|
|
return simplify(value);
|
|
} catch (e) {
|
|
const members = context.members.length ? `.${context.members.join('.')}` : '';
|
|
const message =
|
|
`${e.message}, resolving symbol ${context.name}${members} in ${context.filePath}`;
|
|
if (e.fileName) {
|
|
throw positionalError(message, e.fileName, e.line, e.column);
|
|
}
|
|
throw syntaxError(message);
|
|
}
|
|
}
|
|
|
|
const recordedSimplifyInContext = (context: StaticSymbol, value: any) => {
|
|
try {
|
|
return simplifyInContext(context, value, 0, 0);
|
|
} catch (e) {
|
|
this.reportError(e, context);
|
|
}
|
|
};
|
|
|
|
const result = this.errorRecorder ? recordedSimplifyInContext(context, value) :
|
|
simplifyInContext(context, value, 0, 0);
|
|
if (shouldIgnore(result)) {
|
|
return undefined;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
private getTypeMetadata(type: StaticSymbol): {[key: string]: any} {
|
|
const resolvedSymbol = this.symbolResolver.resolveSymbol(type);
|
|
return resolvedSymbol && resolvedSymbol.metadata ? resolvedSymbol.metadata :
|
|
{__symbolic: 'class'};
|
|
}
|
|
}
|
|
|
|
function expandedMessage(error: any): string {
|
|
switch (error.message) {
|
|
case 'Reference to non-exported class':
|
|
if (error.context && error.context.className) {
|
|
return `Reference to a non-exported class ${error.context.className}. Consider exporting the class`;
|
|
}
|
|
break;
|
|
case 'Variable not initialized':
|
|
return 'Only initialized variables and constants can be referenced because the value of this variable is needed by the template compiler';
|
|
case 'Destructuring not supported':
|
|
return 'Referencing an exported destructured variable or constant is not supported by the template compiler. Consider simplifying this to avoid destructuring';
|
|
case 'Could not resolve type':
|
|
if (error.context && error.context.typeName) {
|
|
return `Could not resolve type ${error.context.typeName}`;
|
|
}
|
|
break;
|
|
case 'Function call not supported':
|
|
let prefix =
|
|
error.context && error.context.name ? `Calling function '${error.context.name}', f` : 'F';
|
|
return prefix +
|
|
'unction calls are not supported. Consider replacing the function or lambda with a reference to an exported function';
|
|
case 'Reference to a local symbol':
|
|
if (error.context && error.context.name) {
|
|
return `Reference to a local (non-exported) symbol '${error.context.name}'. Consider exporting the symbol`;
|
|
}
|
|
break;
|
|
}
|
|
return error.message;
|
|
}
|
|
|
|
function produceErrorMessage(error: any): string {
|
|
return `Error encountered resolving symbol values statically. ${expandedMessage(error)}`;
|
|
}
|
|
|
|
function mapStringMap(input: {[key: string]: any}, transform: (value: any, key: string) => any):
|
|
{[key: string]: any} {
|
|
if (!input) return {};
|
|
const result: {[key: string]: any} = {};
|
|
Object.keys(input).forEach((key) => {
|
|
const value = transform(input[key], key);
|
|
if (!shouldIgnore(value)) {
|
|
if (HIDDEN_KEY.test(key)) {
|
|
Object.defineProperty(result, key, {enumerable: false, configurable: true, value: value});
|
|
} else {
|
|
result[key] = value;
|
|
}
|
|
}
|
|
});
|
|
return result;
|
|
}
|
|
|
|
function isPrimitive(o: any): boolean {
|
|
return o === null || (typeof o !== 'function' && typeof o !== 'object');
|
|
}
|
|
|
|
interface BindingScopeBuilder {
|
|
define(name: string, value: any): BindingScopeBuilder;
|
|
done(): BindingScope;
|
|
}
|
|
|
|
abstract class BindingScope {
|
|
abstract resolve(name: string): any;
|
|
public static missing = {};
|
|
public static empty: BindingScope = {resolve: name => BindingScope.missing};
|
|
|
|
public static build(): BindingScopeBuilder {
|
|
const current = new Map<string, any>();
|
|
return {
|
|
define: function(name, value) {
|
|
current.set(name, value);
|
|
return this;
|
|
},
|
|
done: function() {
|
|
return current.size > 0 ? new PopulatedScope(current) : BindingScope.empty;
|
|
}
|
|
};
|
|
}
|
|
}
|
|
|
|
class PopulatedScope extends BindingScope {
|
|
constructor(private bindings: Map<string, any>) { super(); }
|
|
|
|
resolve(name: string): any {
|
|
return this.bindings.has(name) ? this.bindings.get(name) : BindingScope.missing;
|
|
}
|
|
}
|
|
|
|
function positionalError(message: string, fileName: string, line: number, column: number): Error {
|
|
const result = new Error(message);
|
|
(result as any).fileName = fileName;
|
|
(result as any).line = line;
|
|
(result as any).column = column;
|
|
return result;
|
|
}
|