| /* |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| package org.apache.royale.compiler.internal.abc; |
| |
| import org.apache.royale.abc.semantics.Metadata; |
| import org.apache.royale.abc.semantics.Trait; |
| import org.apache.royale.abc.visitors.IMetadataVisitor; |
| import org.apache.royale.abc.visitors.ITraitVisitor; |
| import org.apache.royale.compiler.constants.IMetaAttributeConstants; |
| import org.apache.royale.compiler.definitions.IDefinition; |
| import org.apache.royale.compiler.definitions.IFunctionDefinition; |
| import org.apache.royale.compiler.definitions.metadata.IMetaTag; |
| import org.apache.royale.compiler.definitions.metadata.IMetaTagAttribute; |
| import org.apache.royale.compiler.internal.definitions.ClassDefinition; |
| import org.apache.royale.compiler.internal.definitions.DefinitionBase; |
| import org.apache.royale.compiler.internal.definitions.FunctionDefinition; |
| import org.apache.royale.compiler.internal.definitions.metadata.MetaTag; |
| import org.apache.royale.compiler.internal.definitions.metadata.MetaTagAttribute; |
| |
| /** |
| * Collect all the metadata and attributes in this trait. |
| */ |
| class CollectMetadataTraitVisitor implements ITraitVisitor |
| { |
| CollectMetadataTraitVisitor(final DefinitionBase definition) |
| { |
| assert definition != null; |
| this.definition = definition; |
| } |
| |
| private final DefinitionBase definition; |
| private IMetaTag[] metaTags; |
| |
| /** |
| * Visiting all the metadata associated with this trait. The {@code count} |
| * is used to determine size of MetaTag array. |
| */ |
| @Override |
| public IMetadataVisitor visitMetadata(final int count) |
| { |
| assert metaTags == null : "Can not re-use the collector."; |
| metaTags = new IMetaTag[count]; |
| return new IMetadataVisitor() |
| { |
| int currentIndex = 0; |
| |
| @Override |
| public void visit(Metadata metadata) |
| { |
| metaTags[currentIndex++] = createMetaTag(definition, metadata); |
| } |
| }; |
| } |
| |
| @Override |
| public void visitStart() |
| { |
| } |
| |
| private IMetaTag findMetaTag(String name) |
| { |
| for (IMetaTag tag : metaTags) |
| { |
| if (tag.getTagName().equals(name)) |
| return tag; |
| } |
| return null; |
| } |
| |
| private static void setNameLocation(IDefinition def, IMetaTag gotoDefTag) |
| { |
| String posString = gotoDefTag.getAttributeValue(IMetaAttributeConstants.NAME_GOTODEFINITIONHELP_POS); |
| int nameStart = Integer.parseInt(posString); |
| |
| DefinitionBase constructorDef = (DefinitionBase)def; |
| int nameEnd = nameStart + def.getBaseName().length(); |
| constructorDef.setNameLocation(nameStart, nameEnd); |
| } |
| |
| /** |
| * Store the meta tags in the definition object. |
| */ |
| @Override |
| public void visitEnd() |
| { |
| if (metaTags == null) |
| metaTags = new IMetaTag[0]; |
| if (definition instanceof ClassDefinition) |
| { |
| ClassDefinition classDef = (ClassDefinition)definition; |
| IFunctionDefinition constructor = classDef.getConstructor(); |
| if (constructor != null) |
| { |
| IMetaTag ctorGotoDefHelpTag = findMetaTag(IMetaAttributeConstants.ATTRIBUTE_GOTODEFINITION_CTOR_HELP); |
| if (ctorGotoDefHelpTag != null) |
| setNameLocation(constructor, ctorGotoDefHelpTag); |
| } |
| } |
| IMetaTag gotoDefHelpTag = findMetaTag(IMetaAttributeConstants.ATTRIBUTE_GOTODEFINITIONHELP); |
| if (gotoDefHelpTag != null) |
| setNameLocation(definition, gotoDefHelpTag); |
| definition.setMetaTags(metaTags); |
| } |
| |
| @Override |
| public void visitAttribute(String attr_name, Object attr_value) |
| { |
| if (definition instanceof FunctionDefinition) |
| { |
| if (attr_name.equals(Trait.TRAIT_FINAL) && (Boolean)attr_value) |
| definition.setFinal(); |
| else if (attr_name.equals(Trait.TRAIT_OVERRIDE) && (Boolean)attr_value) |
| definition.setOverride(); |
| } |
| } |
| |
| /** |
| * Create a {@link IMetaTag} object from {@link Metadata}. |
| * |
| * @param metadata metadata object |
| * @return IMetaTag object |
| */ |
| private static IMetaTag createMetaTag(final IDefinition definition, final Metadata metadata) |
| { |
| final String[] keys = metadata.getKeys(); |
| final String[] values = metadata.getValues(); |
| |
| assert keys.length == values.length; |
| final int attributesCount = keys.length; |
| final IMetaTagAttribute[] attributes = new IMetaTagAttribute[attributesCount]; |
| for (int i = 0; i < attributesCount; i++) |
| attributes[i] = new MetaTagAttribute(keys[i], values[i]); |
| |
| return new MetaTag(definition, metadata.getName(), attributes); |
| } |
| } |