Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit c25283b5 authored by Adam Lesinski's avatar Adam Lesinski
Browse files

AAPT: Allow duplicate attribute definitions if identical 

This allows libraries to coexist a bit easier, since a lot of them
declare the same attribute. When used together they cause errors.
Bug:27101533

Change-Id: I10327251636392e810637a79e7c9aa514f3f07a6
parent 62e1f489

tools/aapt/ResourceTable.cpp

+46 −18
Original line number Diff line number Diff line
@@ -308,29 +308,13 @@ struct PendingAttribute 
        }

        added = true;



        String16 attr16("attr");

        

        if (outTable->hasBagOrEntry(myPackage, attr16, ident)) {

        if (!outTable->makeAttribute(myPackage, ident, sourcePos, type, comment, appendComment)) {

            sourcePos.error("Attribute \"%s\" has already been defined\n",

                    String8(ident).string());

            hasErrors = true;

            return UNKNOWN_ERROR;

        }

        

        char numberStr[16];

        sprintf(numberStr, "%d", type);

        status_t err = outTable->addBag(sourcePos, myPackage,

                attr16, ident, String16(""),

                String16("^type"),

                String16(numberStr), NULL, NULL);

        if (err != NO_ERROR) {

            hasErrors = true;

            return err;

        }

        outTable->appendComment(myPackage, attr16, ident, comment, appendComment);

        //printf("Attribute %s comment: %s\n", String8(ident).string(),

        //     String8(comment).string());

        return err;

        return UNKNOWN_ERROR;

    }

};
@@ -2115,6 +2099,50 @@ bool ResourceTable::appendTypeComment(const String16& package, 
    return false;

}



bool ResourceTable::makeAttribute(const String16& package,

                                  const String16& name,

                                  const SourcePos& source,

                                  int32_t format,

                                  const String16& comment,

                                  bool shouldAppendComment) {

    const String16 attr16("attr");



    // First look for this in the included resources...

    uint32_t rid = mAssets->getIncludedResources()

            .identifierForName(name.string(), name.size(),

                               attr16.string(), attr16.size(),

                               package.string(), package.size());

    if (rid != 0) {

        return false;

    }



    sp<ResourceTable::Entry> entry = getEntry(package, attr16, name, source, false);

    if (entry == NULL) {

        return false;

    }



    if (entry->makeItABag(source) != NO_ERROR) {

        return false;

    }



    const String16 formatKey16("^type");

    const String16 formatValue16(String8::format("%d", format));



    ssize_t idx = entry->getBag().indexOfKey(formatKey16);

    if (idx >= 0) {

        // We have already set a format for this attribute, check if they are different.

        // We allow duplicate attribute definitions so long as they are identical.

        // This is to ensure interoperation with libraries that define the same generic attribute.

        if (entry->getBag().valueAt(idx).value != formatValue16) {

            return false;

        }

    } else {

        entry->addToBag(source, formatKey16, formatValue16);

    }

    appendComment(package, attr16, name, comment, shouldAppendComment);

    return true;

}



void ResourceTable::canAddEntry(const SourcePos& pos,

        const String16& package, const String16& type, const String16& name)

{

tools/aapt/ResourceTable.h

+12 −0
Original line number Diff line number Diff line
@@ -571,6 +571,18 @@ public: 


    void getDensityVaryingResources(KeyedVector<Symbol, Vector<SymbolDefinition> >& resources);



    /**

     * Make an attribute with the specified format. If another attribute with the same name but

     * different format exists, this method returns false. If the name is not taken, or if the

     * format is identical, this returns true.

     */

    bool makeAttribute(const String16& package,

                       const String16& name,

                       const SourcePos& source,

                       int32_t format,

                       const String16& comment,

                       bool appendComment);



private:

    void writePublicDefinitions(const String16& package, FILE* fp, bool pub);

    sp<Package> getPackage(const String16& package);