Merge "Remove hiddenAPI.primary field" into sc-dev

	// that information encoded within it.

	active bool

	// Identifies the active module variant which will be used as the source of hiddenapi information.

	//

	// A class may be compiled into a number of different module variants each of which will need the

	// hiddenapi information encoded into it and so will be marked as active. However, only one of

	// them must be used as a source of information by hiddenapi otherwise it will end up with

	// duplicate entries. That module will have primary=true.

	//

	// Note, that modules <x>-hiddenapi that provide additional annotation information for module <x>

	// that is on the bootclasspath are marked as primary=true as they are the primary source of that

	// annotation information.

	primary bool

	// The path to the dex jar that is in the boot class path. If this is nil then the associated

	// module is not a boot jar, but could be one of the <x>-hiddenapi modules that provide additional

	// annotations for the <x> boot dex jar but which do not actually provide a boot dex jar

	// bootclassloader. If information is gathered for modules not on the list then that will cause

	// failures in the CtsHiddenApiBlocklist... tests.

	h.active = isModuleInBootClassPath(ctx, module)

	if !h.active {

		// The rest of the properties will be ignored if active is false.

		return

	}

	// Determine whether this module is the primary module or not.

	primary := true

	// A prebuilt module is only primary if it is preferred and conversely a source module is only

	// primary if it has not been replaced by a prebuilt module.

	if pi, ok := module.(android.PrebuiltInterface); ok {

		if p := pi.Prebuilt(); p != nil {

			primary = p.UsePrebuilt()

		}

	} else {

		// A source module that has been replaced by a prebuilt can never be the primary module.

		if module.IsReplacedByPrebuilt() {

			if ctx.HasProvider(android.ApexInfoProvider) {

				// The source module is in an APEX but the prebuilt module on which it depends is not in an

				// APEX and so is not the one that will actually be used for hidden API processing. That

				// means it is not possible to check to see if it is a suitable replacement so just assume

				// that it is.

				primary = false

			} else {

				ctx.VisitDirectDepsWithTag(android.PrebuiltDepTag, func(prebuilt android.Module) {

					if h, ok := prebuilt.(hiddenAPIIntf); ok && h.bootDexJar() != nil {

						primary = false

					} else {

						ctx.ModuleErrorf(

							"hiddenapi has determined that the source module %q should be ignored as it has been"+

								" replaced by the prebuilt module %q but unfortunately it does not provide a"+

								" suitable boot dex jar", ctx.ModuleName(), ctx.OtherModuleName(prebuilt))

					}

				})

			}

		}

	}

	h.primary = primary

}

func isModuleInBootClassPath(ctx android.BaseModuleContext, module android.Module) bool {