| /******************************************************************************* |
| * Copyright (c) 2005, 2016 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| *******************************************************************************/ |
| package org.eclipse.dltk.ruby.typeinference.evaluators; |
| |
| import java.util.HashMap; |
| |
| import org.eclipse.dltk.core.IField; |
| import org.eclipse.dltk.core.mixin.IMixinElement; |
| import org.eclipse.dltk.ruby.internal.parser.mixin.RubyMixinElementInfo; |
| import org.eclipse.dltk.ruby.typeinference.RubyClassType; |
| import org.eclipse.dltk.ruby.typeinference.goals.NonTypeConstantTypeGoal; |
| import org.eclipse.dltk.ti.GoalState; |
| import org.eclipse.dltk.ti.goals.GoalEvaluator; |
| import org.eclipse.dltk.ti.goals.IGoal; |
| |
| public class NonTypeConstantTypeEvaluator extends GoalEvaluator { |
| |
| private HashMap hardcoredTypes = new HashMap(); |
| private Object result; |
| |
| public NonTypeConstantTypeEvaluator(IGoal goal) { |
| super(goal); |
| hardcoredTypes.put("FALSE", new RubyClassType("FalseClass%")); //$NON-NLS-1$ //$NON-NLS-2$ |
| hardcoredTypes.put("RUBY_RELEASE_DATE", new RubyClassType("String%")); //$NON-NLS-1$ //$NON-NLS-2$ |
| hardcoredTypes.put("STDERR", new RubyClassType("IO%")); //$NON-NLS-1$ //$NON-NLS-2$ |
| hardcoredTypes.put("MatchingData", new RubyClassType("Class%")); //$NON-NLS-1$ //$NON-NLS-2$ |
| hardcoredTypes.put("TOPLEVEL_BINDING", new RubyClassType("Binding%")); //$NON-NLS-1$ //$NON-NLS-2$ |
| hardcoredTypes.put("ENV", new RubyClassType("Object%")); //$NON-NLS-1$ //$NON-NLS-2$ |
| hardcoredTypes.put("STDIN", new RubyClassType("IO%")); //$NON-NLS-1$ //$NON-NLS-2$ |
| hardcoredTypes.put("TRUE", new RubyClassType("TrueClass%")); //$NON-NLS-1$ //$NON-NLS-2$ |
| hardcoredTypes.put("RELEASE_DATE", new RubyClassType("String%")); //$NON-NLS-1$ //$NON-NLS-2$ |
| hardcoredTypes.put("NIL", new RubyClassType("NilClass%")); //$NON-NLS-1$ //$NON-NLS-2$ |
| hardcoredTypes.put("RUBY_PLATFORM", new RubyClassType("String%")); //$NON-NLS-1$ //$NON-NLS-2$ |
| hardcoredTypes.put("RUBY_VERSION", new RubyClassType("String%")); //$NON-NLS-1$ //$NON-NLS-2$ |
| hardcoredTypes.put("STDOUT", new RubyClassType("IO%")); //$NON-NLS-1$ //$NON-NLS-2$ |
| hardcoredTypes.put("PLATFORM", new RubyClassType("String%")); //$NON-NLS-1$ //$NON-NLS-2$ |
| hardcoredTypes.put("ARGV", new RubyClassType("Array%")); //$NON-NLS-1$ //$NON-NLS-2$ |
| hardcoredTypes.put("ARGF", new RubyClassType("Object%")); //$NON-NLS-1$ //$NON-NLS-2$ |
| hardcoredTypes.put("VERSION", new RubyClassType("String%")); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| |
| private NonTypeConstantTypeGoal getTypedGoal() { |
| return (NonTypeConstantTypeGoal) this.goal; |
| } |
| |
| @Override |
| public IGoal[] init() { |
| NonTypeConstantTypeGoal g = getTypedGoal(); |
| IMixinElement element = g.getElement(); |
| Object[] allObjects = element.getAllObjects(); |
| if (allObjects == null) |
| return IGoal.NO_GOALS; |
| |
| for (int i = 0; i < allObjects.length; i++) { |
| RubyMixinElementInfo info = (RubyMixinElementInfo) allObjects[i]; |
| if (info != null |
| && info.getKind() == RubyMixinElementInfo.K_VARIABLE) { |
| if (info.getObject() instanceof IField) { |
| IField field = (IField) info.getObject(); |
| String name = field.getElementName(); |
| if (hardcoredTypes.containsKey(name)) { |
| this.result = hardcoredTypes.get(name); |
| break; |
| } |
| } |
| } |
| } |
| |
| return IGoal.NO_GOALS; |
| } |
| |
| @Override |
| public Object produceResult() { |
| return result; |
| } |
| |
| @Override |
| public IGoal[] subGoalDone(IGoal subgoal, Object result, GoalState state) { |
| return IGoal.NO_GOALS; |
| } |
| |
| } |