org.chromium.closure.compiler.ChromeCodingConvention.java Source code

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Here is the source code for org.chromium.closure.compiler.ChromeCodingConvention.java

Source

// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

package org.chromium.closure.compiler;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Sets;
import com.google.javascript.jscomp.ClosureCodingConvention.AssertInstanceofSpec;
import com.google.javascript.jscomp.CodingConvention;
import com.google.javascript.jscomp.CodingConventions;
import com.google.javascript.rhino.jstype.FunctionType;
import com.google.javascript.rhino.jstype.ObjectType;
import com.google.javascript.rhino.Node;

import java.util.Collection;
import java.util.Set;

public class ChromeCodingConvention extends CodingConventions.Proxy {

    private final Set<String> indirectlyDeclaredProperties;

    public ChromeCodingConvention() {
        this(CodingConventions.getDefault());
    }

    public ChromeCodingConvention(CodingConvention wrapped) {
        super(wrapped);

        Set<String> props = Sets.newHashSet("instance_", "getInstance");
        props.addAll(wrapped.getIndirectlyDeclaredProperties());
        indirectlyDeclaredProperties = ImmutableSet.copyOf(props);
    }

    @Override
    public String getSingletonGetterClassName(Node callNode) {
        Node callArg = callNode.getFirstChild();

        if (!callArg.matchesQualifiedName("cr.addSingletonGetter") || callNode.getChildCount() != 2) {
            return super.getSingletonGetterClassName(callNode);
        }

        return callArg.getNext().getQualifiedName();
    }

    @Override
    public void applySingletonGetterOld(FunctionType functionType, FunctionType getterType, ObjectType objectType) {
        super.applySingletonGetterOld(functionType, getterType, objectType);
        functionType.defineDeclaredProperty("getInstance", getterType, functionType.getSource());
        functionType.defineDeclaredProperty("instance_", objectType, functionType.getSource());
    }

    @Override
    public Collection<String> getIndirectlyDeclaredProperties() {
        return indirectlyDeclaredProperties;
    }

    @Override
    public Collection<AssertionFunctionSpec> getAssertionFunctions() {
        return ImmutableList.of(new AssertionFunctionSpec("assert"), new AssertInstanceofSpec("cr.ui.decorate"));
    }

    @Override
    public boolean isFunctionCallThatAlwaysThrows(Node n) {
        return CodingConventions.defaultIsFunctionCallThatAlwaysThrows(n, "assertNotReached");
    }
}