Java Diagnostic.getEndPosition方法代码示例

import javax.tools.Diagnostic; //导入方法依赖的package包/类
private static void highlightErrorInArea(Diagnostic diagnostic) {
    int start = (int) diagnostic.getStartPosition();
    int end = (int) diagnostic.getEndPosition();
    int areaSize = customCodeArea.getText().length() - 1;

    if (start == end) {
        if (start > 0) {
            start--;
        }
        if (end < areaSize) {
            end++;
        }
    } else if (end < start) {
        end = start + 1;
        start--;
        if (end == areaSize) {
            end--;
        }
    }

    customCodeArea.getCodeAreaCSS().setStyleClass(start, end, "error");
}
 

import javax.tools.Diagnostic; //导入方法依赖的package包/类
@Override
public void click(Diagnostic diagnostic) {
    Log.d(TAG, "click() called with: diagnostic = [" + diagnostic + "]");
    mMainActivity.closeDrawer(GravityCompat.START);

    Object source = diagnostic.getSource();
    if (source instanceof JavaFileObject && diagnostic.getKind() == Diagnostic.Kind.ERROR) {
        String path = ((JavaFileObject) source).getName();
        int i = mPagePresenter.gotoPage(path);
        if (i == -1) {
            mPagePresenter.addPage(path, true);
        }
        EditPageContract.SourceView editor = mPagePresenter.getCurrentPage();
        if (editor == null) {
            Log.d(TAG, "click: editor null");
            return;
        }
        int startPosition = (int) diagnostic.getStartPosition();
        int endPosition = (int) diagnostic.getEndPosition();
        editor.highlightError(startPosition, endPosition);
        editor.setCursorPosition(endPosition);
    } else {
        // TODO: 19/07/2017 implement other
    }
}
 

import javax.tools.Diagnostic; //导入方法依赖的package包/类
private String getErrorDetails(Diagnostic diagnostic) {
  String sourceErrorDetails = "";
  CharSequence sourceCode = getSourceContent(diagnostic);
  if (sourceCode != null) {
    String source = sourceCode.toString();
    int startPosition = (int) diagnostic.getStartPosition();
    int endPosition = (int) diagnostic.getEndPosition();

    if (endPosition < 0 && startPosition < 0) {
      return "";
    }
    if (startPosition < 0) {
      startPosition = endPosition;
    } else if (endPosition < 0) {
      endPosition = startPosition;
    }

    final int snippetStart = getSnippetStart(source, startPosition);
    final int snippetEnd = getSnippetEnd(source, endPosition);

    final String errorLine = source.substring(snippetStart, snippetEnd).replaceAll("\n", " ");;
    startPosition -= snippetStart;
    endPosition -= snippetStart;

    StringBuilder signStringBuilder = getSpacesStringBuilder(errorLine.length());
    signStringBuilder.insert(startPosition, POSITION_CHARACTER);
    if (startPosition != endPosition) {
      signStringBuilder.insert(endPosition, POSITION_CHARACTER);
    }

    sourceErrorDetails = errorLine + "\n" + signStringBuilder.toString() + "\n\n";
  }
  return sourceErrorDetails;
}
 

import javax.tools.Diagnostic; //导入方法依赖的package包/类
@Override
public Diag diag(final Diagnostic<? extends JavaFileObject> d) {
    return new Diag() {

        @Override
        public boolean isError() {
            return d.getKind() == Diagnostic.Kind.ERROR;
        }

        @Override
        public long getPosition() {
            return d.getPosition();
        }

        @Override
        public long getStartPosition() {
            return d.getStartPosition();
        }

        @Override
        public long getEndPosition() {
            return d.getEndPosition();
        }

        @Override
        public String getCode() {
            return d.getCode();
        }

        @Override
        public String getMessage(Locale locale) {
            return expunge(d.getMessage(locale));
        }
    };
}
 

import javax.tools.Diagnostic; //导入方法依赖的package包/类
public static void main(String... args) throws IOException {
    class MyFileObject extends SimpleJavaFileObject {
        MyFileObject() {
            super(URI.create("myfo:///Test.java"), SOURCE);
        }
        @Override
        public String getCharContent(boolean ignoreEncodingErrors) {
            //      0         1         2         3
            //      012345678901234567890123456789012345
            return "class Test { String s = 1234; }";
        }
    }
    JavaCompiler javac = ToolProvider.getSystemJavaCompiler();
    List<JavaFileObject> compilationUnits =
            Collections.<JavaFileObject>singletonList(new MyFileObject());
    DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<JavaFileObject>();
    List<String> options = Arrays.asList("-processor", EndPositions.class.getCanonicalName());
    JavacTask task = (JavacTask)javac.getTask(null, null, diagnostics, options, null, compilationUnits);
    boolean valid = task.call();
    if (valid)
        throw new AssertionError("Expected one error, but found none.");

    List<Diagnostic<? extends JavaFileObject>> errors = diagnostics.getDiagnostics();
    if (errors.size() != 1)
        throw new AssertionError("Expected one error only, but found " + errors.size() + "; errors: " + errors);

    Diagnostic<?> error = errors.get(0);
    if (error.getStartPosition() >= error.getEndPosition())
        throw new AssertionError("Expected start to be less than end position: start [" +
                error.getStartPosition() + "], end [" + error.getEndPosition() +"]" +
                "; diagnostics code: " + error.getCode());

    System.out.println("All is good!");
}
 

import javax.tools.Diagnostic; //导入方法依赖的package包/类
static void compile(JavaSource src) throws IOException {
    ByteArrayOutputStream ba = new ByteArrayOutputStream();
    PrintWriter writer = new PrintWriter(ba);
    File tempDir = new File(".");
    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
    DiagnosticCollector dc = new DiagnosticCollector();
    try (JavaFileManager javaFileManager = getJavaFileManager(compiler, dc)) {
        List<String> options = new ArrayList<>();
        options.add("-cp");
        options.add(tempDir.getPath());
        options.add("-d");
        options.add(tempDir.getPath());
        options.add("--should-stop:at=GENERATE");

        List<JavaFileObject> sources = new ArrayList<>();
        sources.add(src);
        JavaCompiler.CompilationTask task =
                compiler.getTask(writer, javaFileManager,
                dc, options, null,
                sources);
        task.call();
        for (Diagnostic diagnostic : (List<Diagnostic>) dc.getDiagnostics()) {
            long actualStart = diagnostic.getStartPosition();
            long actualEnd = diagnostic.getEndPosition();
            System.out.println("Source: " + src.source);
            System.out.println("Diagnostic: " + diagnostic);
            System.out.print("Start position: Expected: " + src.startPos);
            System.out.println(", Actual: " + actualStart);
            System.out.print("End position: Expected: " + src.endPos);
            System.out.println(", Actual: " + actualEnd);
            if (src.startPos != actualStart || src.endPos != actualEnd) {
                throw new RuntimeException("error: trees don't match");
            }
        }
    }
}
 

import javax.tools.Diagnostic; //导入方法依赖的package包/类
public static void brokenPlatform(
        @NonNull final Context ctx,
        @NonNull final Iterable<? extends CompileTuple> files,
        @NullAllowed final Diagnostic<JavaFileObject> diagnostic) {
    if (diagnostic == null) {
        return;
    }
    final Diagnostic<JavaFileObject> error = new Diagnostic<JavaFileObject>() {

        @Override
        public Kind getKind() {
            return Kind.ERROR;
        }

        @Override
        public JavaFileObject getSource() {
            return diagnostic.getSource();
        }

        @Override
        public long getPosition() {
            return diagnostic.getPosition();
        }

        @Override
        public long getStartPosition() {
            return diagnostic.getStartPosition();
        }

        @Override
        public long getEndPosition() {
            return diagnostic.getEndPosition();
        }

        @Override
        public long getLineNumber() {
            return diagnostic.getLineNumber();
        }

        @Override
        public long getColumnNumber() {
            return diagnostic.getColumnNumber();
        }

        @Override
        public String getCode() {
            return diagnostic.getCode();
        }

        @Override
        public String getMessage(Locale locale) {
            return diagnostic.getMessage(locale);
        }
    };
    for (CompileTuple file : files) {
        if (!file.virtual) {
            ErrorsCache.setErrors(
                ctx.getRootURI(),
                file.indexable,
                Collections.<Diagnostic<JavaFileObject>>singleton(error),
                ERROR_CONVERTOR);
        }
    }
}