JavaSymbolSolver:获取字段的完全限定名称

JavaSymbolSolver: get field's fully qualified name

我使用 JavaParser(来自 javaparser.org)和 javasymbolsolver 来解析 Java。

我有一个访问 File.separator 的简单 Java 源代码(请参阅源代码中的多行字符串);我希望我的程序打印 java.io.File.fileseparator。相反,它打印 File.separator 并且我得到 UnsolvedSymbolException{context='File', name='Solving File'};然后它打印 System.out 我得到 UnsolvedSymbolException{context='System', name='Solving System'}.

@Test
public void parserTest() {
    CombinedTypeSolver combinedTypeSolver = new CombinedTypeSolver();
    combinedTypeSolver.add(new ReflectionTypeSolver());
    JavaSymbolSolver symbolSolver = new JavaSymbolSolver(combinedTypeSolver);
    JavaParser.getStaticConfiguration().setSymbolResolver(symbolSolver);

    CompilationUnit compilationUnit = JavaParser.parse(
            "import java.io.File;\n" +
            "\n" +
            "public class Main {\n" +
            "    static String s = File.separator;\n" +
            "    public static void main(String args[]) {\n" +
            "        System.out.println(s);\n" +
            "    }\n" +
            "}\n");
    compilationUnit.accept(
            new ModifierVisitor<Void>() {
                @Override
                public Visitable visit(final FieldAccessExpr n, final Void arg) {
                    System.out.println(n);
                    try { // this does not work!!!
                        System.out.println(n.getScope().calculateResolvedType());
                    } catch (Exception e) {
                        e.printStackTrace();
                    }

                    return super.visit(n, arg);
                }
            },
            null
    );
}

据我所知,在 Java 符号求解器的某个深处,它试图将文件解析为一个值,当然失败了。

如何获取字段的完全限定名称?

更新到 3.8.0 后,以下工作:

ResolvedType resolvedType = n.getScope().calculateResolvedType();
System.out.println(resolvedType.describe());