Examples with TextFormatter lombok.ast.printer.TextFormatter used on opensource projects

Example 1 with TextFormatter

use of lombok.ast.printer.TextFormatter in project android by JetBrains.

the class LombokPsiConverterTest method testJava7.

public void testJava7() {
    @Language("JAVA") String testClass = "package test.pkg;\n" + "\n" + "import java.io.BufferedReader;\n" + "import java.io.FileReader;\n" + "import java.io.IOException;\n" + "import java.lang.reflect.InvocationTargetException;\n" + "import java.util.List;\n" + "import java.util.Map;\n" + "import java.util.TreeMap;\n" + "\n" + "public class Java7LanguageFeatureTest {\n" + "    public void testDiamondOperator() {\n" + "        Map<String, List<Integer>> map = new TreeMap<>();\n" + "    }\n" + "\n" + "    public int testStringSwitches(String value) {\n" + "        final String first = \"first\";\n" + "        final String second = \"second\";\n" + "\n" + "        switch (value) {\n" + "            case first:\n" + "                return 41;\n" + "            case second:\n" + "                return 42;\n" + "            default:\n" + "                return 0;\n" + "        }\n" + "    }\n" + "\n" + "    public String testTryWithResources(String path) throws IOException {\n" + "        try (BufferedReader br = new BufferedReader(new FileReader(path))) {\n" + "            return br.readLine();\n" + "        }\n" + "    }\n" + "\n" + "    public void testNumericLiterals() {\n" + "        int thousand = 1_000;\n" + "        int million = 1_000_000;\n" + "        int binary = 0B01010101;\n" + "    }\n" + "\n" + "    public void testMultiCatch() {\n" + "\n" + "        try {\n" + "            Class.forName(\"java.lang.Integer\").getMethod(\"toString\").invoke(null);\n" + "        } catch (IllegalAccessException | InvocationTargetException | NoSuchMethodException e) {\n" + "            e.printStackTrace();\n" + "        } catch (ClassNotFoundException e) {\n" + "            // TODO: Logging here\n" + "        }\n" + "    }\n" + "}\n";
    PsiFile psiFile = myFixture.addFileToProject("src/test/pkg/R9.java", testClass);
    // Can't call check(psiFile, testClass) here; the source code won't parse
    // with Lombok's parser since it doesn't support Java 7, so we just manually
    // check that the LombokPsiConverter doesn't abort, and format it's view of
    // the Lombok AST and check that it looks like what we expect; an AST containing
    // fragments usable by lint, but not providing support for syntactic constructs
    // such as try with resources or containing type variables where the diamond operator
    // should have been etc.
    assertTrue(psiFile.getClass().getName(), psiFile instanceof PsiJavaFile);
    PsiJavaFile psiJavaFile = (PsiJavaFile) psiFile;
    CompilationUnit node = LombokPsiConverter.convert(psiJavaFile);
    assertNotNull(node);
    TextFormatter formatter = new TextFormatter();
    node.accept(new SourcePrinter(formatter));
    String actual = formatter.finish();
    assertEquals("package test.pkg;\n" + "\n" + "import java.io.BufferedReader;\n" + "import java.io.FileReader;\n" + "import java.io.IOException;\n" + "import java.lang.reflect.InvocationTargetException;\n" + "import java.util.List;\n" + "import java.util.Map;\n" + "import java.util.TreeMap;\n" + "\n" + "public class Java7LanguageFeatureTest {\n" + "    public void testDiamondOperator() {\n" + "        Map<String, List<Integer>> map = new TreeMap();\n" + "    }\n" + "    \n" + "    public int testStringSwitches(String value) {\n" + "        final String first = \"first\";\n" + "        final String second = \"second\";\n" + "        switch (value) {\n" + "        case first:\n" + "            return 41;\n" + "        case second:\n" + "            return 42;\n" + "        case :\n" + "            return 0;\n" + "        }\n" + "    }\n" + "    \n" + "    public String testTryWithResources(String path) throws IOException {\n" + "        try {\n" + "            return br.readLine();\n" + "        }\n" + "    }\n" + "    \n" + "    public void testNumericLiterals() {\n" + "        int thousand = 1_000;\n" + "        int million = 1_000_000;\n" + "        int binary = 0B01010101;\n" + "    }\n" + "    \n" + "    public void testMultiCatch() {\n" + "        try {\n" + "            Class.forName(\"java.lang.Integer\").getMethod(\"toString\").invoke(null);\n" + "        } catch (?!?INVALID_IDENTIFIER: IllegalAccessException | InvocationTargetException | NoSuchMethodException?!? e) {\n" + "            e.printStackTrace();\n" + "        } catch (ClassNotFoundException e) {\n" + "        }\n" + "    }\n" + "}", actual);
}

Example 2 with TextFormatter

use of lombok.ast.printer.TextFormatter in project android by JetBrains.

the class LombokPsiConverterTest method check.

private static void check(PsiFile psiFile, @Language("JAVA") String source) {
    assertTrue(psiFile.getClass().getName(), psiFile instanceof PsiJavaFile);
    PsiJavaFile psiJavaFile = (PsiJavaFile) psiFile;
    CompilationUnit node = LombokPsiConverter.convert(psiJavaFile);
    assertNotNull(node);
    String actualStructure;
    if (CHECK_POSITIONS) {
        StructureFormatter structureFormatter = StructureFormatter.formatterWithPositions();
        node.accept(new SourcePrinter(structureFormatter));
        actualStructure = structureFormatter.finish();
    }
    TextFormatter formatter = new TextFormatter();
    node.accept(new SourcePrinter(formatter));
    String actual = formatter.finish();
    Node expectedNode = parse(source);
    assertNotNull(expectedNode);
    if (CHECK_POSITIONS) {
        StructureFormatter structureFormatter = StructureFormatter.formatterWithPositions();
        expectedNode.accept(new SourcePrinter(structureFormatter));
        String masterStructure = structureFormatter.finish();
        assertEquals(masterStructure, actualStructure);
    }
    formatter = new TextFormatter();
    expectedNode.accept(new SourcePrinter(formatter));
    String master = formatter.finish();
    assertEquals(master, actual);
    // Check for resilience to error nodes being present in the AST
    Project project = psiFile.getProject();
    final PsiDocumentManager manager = PsiDocumentManager.getInstance(project);
    final Document document = manager.getDocument(psiFile);
    assertNotNull(document);
    // fixed seed for test reproducibility
    final Random random = new Random(0L);
    for (int i = 0; i < 500; i++) {
        WriteCommandAction.runWriteCommandAction(project, new Runnable() {

            @Override
            public void run() {
                int pos = random.nextInt(document.getTextLength() - 1);
                char ch = (char) (random.nextInt(64) + 32);
                double operation = random.nextDouble();
                if (operation < 0.33) {
                    document.insertString(pos, Character.toString(ch));
                } else if (operation < 0.67) {
                    document.replaceString(pos, pos + 1, Character.toString(ch));
                } else {
                    document.deleteString(pos, pos + 1);
                }
                manager.commitDocument(document);
            }
        });
        node = LombokPsiConverter.convert(psiJavaFile);
        assertNotNull(psiJavaFile.getText(), node);
    }
}