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FileInfo.java
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FileInfo.java
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/*
* Copyright 2017 The Closure Compiler Authors.
*
* Licensed 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 com.google.javascript.jscomp.ijs;
import static com.google.common.base.Preconditions.checkNotNull;
import com.google.common.collect.ListMultimap;
import com.google.common.collect.MultimapBuilder;
import com.google.javascript.rhino.Node;
import java.util.HashSet;
import java.util.Set;
/**
* Class to keep track of what has been seen so far in a given file.
*/
final class FileInfo {
private final Set<String> providedNamespaces = new HashSet<>();
private final Set<String> requiredLocalNames = new HashSet<>();
private final ListMultimap<String, PotentialDeclaration> declarations =
MultimapBuilder.linkedHashKeys().arrayListValues().build();
void recordNameDeclaration(Node qualifiedNameNode) {
recordDeclaration(PotentialDeclaration.fromName(qualifiedNameNode));
}
void recordMethod(Node functionNode) {
recordDeclaration(PotentialDeclaration.fromMethod(functionNode));
}
void recordStringKeyDeclaration(Node stringKeyNode) {
recordDeclaration(PotentialDeclaration.fromStringKey(stringKeyNode));
}
void recordDefine(Node callNode) {
recordDeclaration(PotentialDeclaration.fromDefine(callNode));
}
ListMultimap<String, PotentialDeclaration> getDeclarations() {
return declarations;
}
void recordDeclaration(PotentialDeclaration decl) {
declarations.put(decl.getFullyQualifiedName(), decl);
}
void recordImport(String localName) {
requiredLocalNames.add(localName);
}
boolean isNameDeclared(String fullyQualifiedName) {
return declarations.containsKey(fullyQualifiedName);
}
private static boolean containsPrefix(
String fullyQualifiedName, Iterable<String> prefixNamespaces) {
for (String prefix : prefixNamespaces) {
if (fullyQualifiedName.equals(prefix) || fullyQualifiedName.startsWith(prefix + ".")) {
return true;
}
}
return false;
}
boolean isPrefixProvided(String fullyQualifiedName) {
return containsPrefix(fullyQualifiedName, providedNamespaces);
}
boolean isPrefixRequired(String fullyQualifiedName) {
return containsPrefix(fullyQualifiedName, requiredLocalNames);
}
boolean isStrictPrefixDeclared(String fullyQualifiedName) {
for (String prefix : declarations.keySet()) {
if (fullyQualifiedName.startsWith(prefix + ".")) {
return true;
}
}
return false;
}
void markProvided(String providedName) {
checkNotNull(providedName);
providedNamespaces.add(providedName);
}
}