import org.eclipse.jdt.internal.compiler.ast.MarkerAnnotation; //导入依赖的package包/类
public static MarkerAnnotation generateDeprecatedAnnotation(ASTNode source) {
	QualifiedTypeReference qtr = new QualifiedTypeReference(new char[][] {
			{'j', 'a', 'v', 'a'}, {'l', 'a', 'n', 'g'}, {'D', 'e', 'p', 'r', 'e', 'c', 'a', 't', 'e', 'd'}}, poss(source, 3));
	setGeneratedBy(qtr, source);
	MarkerAnnotation ma = new MarkerAnnotation(qtr, source.sourceStart);
	// No matter what value you input for sourceEnd, the AST->DOM converter of eclipse will reparse to find the end, and will fail as
	// it can't find code that isn't really there. This results in the end position being set to 2 or 0 or some weird magic value, and thus,
	// length, as calculated by end-start, is all screwed up, resulting in IllegalArgumentException during a setSourceRange call MUCH later in the process.
	// We solve it by going with a voodoo magic source start value such that the calculated length so happens to exactly be 0. 0 lengths are accepted
	// by eclipse. For some reason.
	// TL;DR: Don't change 1. 1 is sacred. Trust the 1.
	// issue: #408.
	ma.sourceStart = 1;
	setGeneratedBy(ma, source);
	return ma;
}
 

import org.eclipse.jdt.internal.compiler.ast.MarkerAnnotation; //导入依赖的package包/类
/**
 * Create an annotation of the given name, and is marked as being generated by the given source.
 */
public static MarkerAnnotation makeMarkerAnnotation(char[][] name, ASTNode source) {
	long pos = (long)source.sourceStart << 32 | source.sourceEnd;
	TypeReference typeRef = new QualifiedTypeReference(name, new long[] {pos, pos, pos});
	setGeneratedBy(typeRef, source);
	MarkerAnnotation ann = new MarkerAnnotation(typeRef, (int)(pos >> 32));
	ann.declarationSourceEnd = ann.sourceEnd = ann.statementEnd = (int)pos;
	setGeneratedBy(ann, source);
	return ann;
}
 

import org.eclipse.jdt.internal.compiler.ast.MarkerAnnotation; //导入依赖的package包/类
public boolean visit(MarkerAnnotation annotation, BlockScope scope) {
	this.scribe.printNextToken(TerminalTokens.TokenNameAT);
	if (this.preferences.insert_space_after_at_in_annotation) {
		this.scribe.space();
	}
	this.scribe.printQualifiedReference(annotation.sourceEnd, false/*do not expect parenthesis*/);
	return false;
}
 

import org.eclipse.jdt.internal.compiler.ast.MarkerAnnotation; //导入依赖的package包/类
@Override public boolean visit(MarkerAnnotation node, BlockScope scope) {
	fixPositions(setGeneratedBy(node, source));
	return super.visit(node, scope);
}
 

import org.eclipse.jdt.internal.compiler.ast.MarkerAnnotation; //导入依赖的package包/类
@Override
public boolean visit(MarkerAnnotation annotation, BlockScope scope) {
  return false;
}
 

import org.eclipse.jdt.internal.compiler.ast.MarkerAnnotation; //导入依赖的package包/类
@Override public boolean visit(MarkerAnnotation node, BlockScope scope) {
	setGeneratedBy(node, source);
	applyOffset(node);
	return super.visit(node, scope);
}