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ChromeCodingConvention.java
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ChromeCodingConvention.java
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/*
* Copyright 2014 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;
import com.google.common.collect.ImmutableCollection;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.errorprone.annotations.Immutable;
import com.google.javascript.rhino.Node;
import com.google.javascript.rhino.NominalTypeBuilder;
import com.google.javascript.rhino.jstype.FunctionType;
/**
* Coding convention used by the Chrome team to compile Chrome's JS.
*/
@Immutable
public final class ChromeCodingConvention extends CodingConventions.Proxy {
private final ImmutableSet<String> indirectlyDeclaredProperties;
public ChromeCodingConvention() {
this(CodingConventions.getDefault());
}
public ChromeCodingConvention(CodingConvention wrapped) {
super(wrapped);
indirectlyDeclaredProperties = new ImmutableSet.Builder<String>()
.add("instance_", "getInstance")
.addAll(wrapped.getIndirectlyDeclaredProperties())
.build();
}
@Override
public String getSingletonGetterClassName(Node callNode) {
Node callArg = callNode.getFirstChild();
if (!callArg.matchesQualifiedName("cr.addSingletonGetter") || !callNode.hasTwoChildren()) {
return super.getSingletonGetterClassName(callNode);
}
return callArg.getNext().getQualifiedName();
}
@Override
public void applySingletonGetter(NominalTypeBuilder classType, FunctionType getterType) {
Node defSite = classType.constructor().getSource();
classType.declareConstructorProperty("getInstance", getterType, defSite);
classType.declareConstructorProperty("instance_", classType.instance(), defSite);
}
@Override
public ImmutableCollection<String> getIndirectlyDeclaredProperties() {
return indirectlyDeclaredProperties;
}
@Override
public ImmutableCollection<AssertionFunctionSpec> getAssertionFunctions() {
return ImmutableList.of(
AssertionFunctionSpec.forTruthy().setFunctionName("assert").build(),
AssertionFunctionSpec.forMatchesReturn().setFunctionName("cr.ui.decorate").build());
}
@Override
public boolean isFunctionCallThatAlwaysThrows(Node n) {
return CodingConventions.defaultIsFunctionCallThatAlwaysThrows(
n, "assertNotReached");
}
}