| /******************************************************************************* |
| * Copyright (c) 2011,2012 NumberFour AG |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0. |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * NumberFour AG - initial API and Implementation (Alex Panchenko) |
| *******************************************************************************/ |
| package org.eclipse.dltk.javascript.typeinfo; |
| |
| import static org.eclipse.dltk.javascript.typeinfo.RTypes.any; |
| |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.LinkedHashMap; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.eclipse.dltk.compiler.problem.IValidationStatus; |
| import org.eclipse.dltk.javascript.internal.core.RRecordMember; |
| import org.eclipse.dltk.javascript.typeinference.IValueReference; |
| import org.eclipse.dltk.javascript.typeinfo.model.JSType; |
| import org.eclipse.dltk.javascript.typeinfo.model.Member; |
| import org.eclipse.emf.common.util.EList; |
| |
| class RRecordType extends RType implements IRRecordType, IRTypeExtension { |
| |
| private final Map<String, IRRecordMember> members = new LinkedHashMap<String, IRRecordMember>(); |
| |
| public RRecordType() { |
| } |
| |
| public RRecordType(ITypeSystem context, Collection<Member> members) { |
| for (Member member : members) { |
| final JSType type = member.getType(); |
| this.members.put( |
| member.getName(), |
| new RRecordMember(member.getName(), type != null ? RTypes |
| .create(context, type) : any(), member)); |
| } |
| } |
| |
| public RRecordType(Collection<IRRecordMember> members) { |
| for (IRRecordMember member : members) { |
| this.members.put(member.getName(), member); |
| } |
| } |
| |
| public void init(ITypeSystem context, EList<Member> members) { |
| for (Member member : members) { |
| final JSType type = member.getType(); |
| this.members.put( |
| member.getName(), |
| new RRecordMember(member.getName(), type != null ? RTypes |
| .create(context, type) : any(), member)); |
| } |
| } |
| |
| @Override |
| public String toString(Set<RType> processed) { |
| if (!processed.add(this)) |
| return "{_self}"; |
| final StringBuilder sb = new StringBuilder(); |
| sb.append('{'); |
| for (IRRecordMember member : members.values()) { |
| if (sb.length() > 1) { |
| sb.append(','); |
| } |
| sb.append(member.getName()); |
| if (member.getType() != RTypes.any()) { |
| sb.append(':'); |
| if (member.getType() instanceof RType) { |
| sb.append(((RType) member.getType()).toString(processed)); |
| } else { |
| sb.append(member.getType().getName()); |
| } |
| } |
| if (member.isOptional()) { |
| sb.append('='); |
| } |
| } |
| sb.append('}'); |
| return sb.toString(); |
| } |
| |
| public String getName() { |
| return toString(new HashSet<RType>()); |
| } |
| |
| public IRRecordMember getMember(String name) { |
| return members.get(name); |
| } |
| |
| public Collection<IRRecordMember> getMembers() { |
| return members.values(); |
| } |
| |
| @Override |
| public TypeCompatibility isAssignableFrom(IRType type) { |
| if (super.isAssignableFrom(type).ok()) { |
| return TypeCompatibility.TRUE; |
| } else if (type instanceof RRecordType) { |
| return assignableFromRecordType((RRecordType) type); |
| } else { |
| return TypeCompatibility.FALSE; |
| } |
| } |
| |
| private TypeCompatibility assignableFromRecordType(RRecordType other) { |
| final Map<String, IRRecordMember> others = other.members; |
| int hits = 0; |
| for (Map.Entry<String, IRRecordMember> entry : others.entrySet()) { |
| final IRRecordMember member = members.get(entry.getKey()); |
| if (member == null) { |
| continue; |
| } |
| if (!member.getType().isAssignableFrom(entry.getValue().getType()) |
| .ok()) { |
| return TypeCompatibility.FALSE; |
| } |
| ++hits; |
| } |
| for (Map.Entry<String, IRRecordMember> entry : members.entrySet()) { |
| if (!entry.getValue().isOptional() |
| && !others.containsKey(entry.getKey())) { |
| return TypeCompatibility.FALSE; |
| } |
| } |
| return hits != 0 ? TypeCompatibility.TRUE : TypeCompatibility.FALSE; |
| } |
| |
| public IValidationStatus isAssignableFrom(IValueReference argument) { |
| if (argument == null) |
| return TypeCompatibility.TRUE; |
| final IRRecordType other = RTypes.recordType(argument); |
| return other != RTypes.emptyRecordType() ? assignableFromRecordType((RRecordType) other) |
| : TypeCompatibility.FALSE; |
| } |
| |
| @Override |
| public int hashCode() { |
| return members.hashCode(); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj instanceof RRecordType) { |
| final RRecordType other = (RRecordType) obj; |
| return members.equals(other.members); |
| } |
| return false; |
| } |
| |
| } |