/** * Extracts all Behaviors from an array recursively. The array must be an array literal whose * value is known at compile-time. Entries in the array can be object literals or array literals * (of other behaviors). Behavior names must be global, fully qualified names. * * @see https://github.com/Polymer/polymer/blob/0.8-preview/PRIMER.md#behaviors * @return A list of all {@code BehaviorDefinitions} in the array. */ private List<BehaviorDefinition> extractBehaviors(Node behaviorArray) { if (behaviorArray == null) { return ImmutableList.of(); } if (!behaviorArray.isArrayLit()) { compiler.report(JSError.make(behaviorArray, POLYMER_INVALID_BEHAVIOR_ARRAY)); return ImmutableList.of(); } ImmutableList.Builder<BehaviorDefinition> behaviors = ImmutableList.builder(); for (Node behaviorName : behaviorArray.children()) { if (behaviorName.isObjectLit()) { this.switchDollarSignPropsToBrackets(behaviorName); this.quoteListenerAndHostAttributeKeys(behaviorName); behaviors.add( new BehaviorDefinition( extractProperties(behaviorName), getBehaviorFunctionsToCopy(behaviorName), getNonPropertyMembersToCopy(behaviorName), !NodeUtil.isInFunction(behaviorName))); continue; } Name behaviorGlobalName = globalNames.getSlot(behaviorName.getQualifiedName()); boolean isGlobalDeclaration = true; if (behaviorGlobalName == null) { compiler.report(JSError.make(behaviorName, POLYMER_UNQUALIFIED_BEHAVIOR)); continue; } Ref behaviorDeclaration = behaviorGlobalName.getDeclaration(); // Use any set as a backup declaration, even if it's local. if (behaviorDeclaration == null) { List<Ref> behaviorRefs = behaviorGlobalName.getRefs(); for (Ref ref : behaviorRefs) { if (ref.isSet()) { isGlobalDeclaration = false; behaviorDeclaration = ref; break; } } } if (behaviorDeclaration == null) { compiler.report(JSError.make(behaviorName, POLYMER_UNQUALIFIED_BEHAVIOR)); continue; } Node behaviorDeclarationNode = behaviorDeclaration.getNode(); JSDocInfo behaviorInfo = NodeUtil.getBestJSDocInfo(behaviorDeclarationNode); if (behaviorInfo == null || !behaviorInfo.isPolymerBehavior()) { compiler.report(JSError.make(behaviorDeclarationNode, POLYMER_UNANNOTATED_BEHAVIOR)); } Node behaviorValue = NodeUtil.getRValueOfLValue(behaviorDeclarationNode); if (behaviorValue == null) { compiler.report(JSError.make(behaviorName, POLYMER_UNQUALIFIED_BEHAVIOR)); } else if (behaviorValue.isArrayLit()) { // Individual behaviors can also be arrays of behaviors. Parse them recursively. behaviors.addAll(extractBehaviors(behaviorValue)); } else if (behaviorValue.isObjectLit()) { this.switchDollarSignPropsToBrackets(behaviorValue); this.quoteListenerAndHostAttributeKeys(behaviorValue); behaviors.add( new BehaviorDefinition( extractProperties(behaviorValue), getBehaviorFunctionsToCopy(behaviorValue), getNonPropertyMembersToCopy(behaviorValue), isGlobalDeclaration)); } else { compiler.report(JSError.make(behaviorName, POLYMER_UNQUALIFIED_BEHAVIOR)); } } return behaviors.build(); }