Examples with LambdaExpressionTreeImpl org.sonar.java.model.expression.LambdaExpressionTreeImpl used on opensource projects

Example 1 with LambdaExpressionTreeImpl

use of org.sonar.java.model.expression.LambdaExpressionTreeImpl in project sonar-java by SonarSource.

the class TypeAndReferenceSolver method visitLambdaExpression.

@Override
public void visitLambdaExpression(LambdaExpressionTree tree) {
    LambdaExpressionTreeImpl lambdaExpressionTree = (LambdaExpressionTreeImpl) tree;
    if (lambdaExpressionTree.isTypeSet()) {
        // type should be tied to a SAM interface
        JavaType lambdaType = (JavaType) lambdaExpressionTree.symbolType();
        List<JavaType> samMethodArgs = resolve.findSamMethodArgs(lambdaType);
        for (int i = 0; i < samMethodArgs.size(); i++) {
            VariableTree param = lambdaExpressionTree.parameters().get(i);
            if (param.type().is(Tree.Kind.INFERED_TYPE)) {
                JavaType inferedType = samMethodArgs.get(i);
                if (inferedType.isTagged(JavaType.WILDCARD)) {
                    // JLS8 18.5.3
                    inferedType = ((WildCardType) inferedType).bound;
                }
                ((AbstractTypedTree) param.type()).setInferedType(inferedType);
                ((JavaSymbol.VariableJavaSymbol) param.symbol()).type = inferedType;
            }
        }
        super.visitLambdaExpression(tree);
        if (lambdaType.isUnknown() || lambdaType.isTagged(JavaType.DEFERRED)) {
            return;
        }
        refineLambdaType(lambdaExpressionTree, lambdaType);
    } else {
        registerType(tree, symbols.deferedType(lambdaExpressionTree));
    }
}