Java LabeledStatement类代码示例

import org.eclipse.jdt.internal.compiler.ast.LabeledStatement; //导入依赖的package包/类
/**
 * @see org.eclipse.jdt.internal.compiler.ASTVisitor#visit(org.eclipse.jdt.internal.compiler.ast.LabeledStatement, org.eclipse.jdt.internal.compiler.lookup.BlockScope)
 */
public boolean visit(LabeledStatement labeledStatement, BlockScope scope) {

	this.scribe.printNextToken(TerminalTokens.TokenNameIdentifier);
	this.scribe.printNextToken(TerminalTokens.TokenNameCOLON, this.preferences.insert_space_before_colon_in_labeled_statement);
	if (this.preferences.insert_space_after_colon_in_labeled_statement) {
		this.scribe.space();
	}
	if (this.preferences.insert_new_line_after_label) {
		this.scribe.printNewLine();
	}
	final Statement statement = labeledStatement.statement;
	statement.traverse(this, scope);
	if (statement instanceof Expression) {
		this.scribe.printNextToken(TerminalTokens.TokenNameSEMICOLON, this.preferences.insert_space_before_semicolon);
		this.scribe.printComment(CodeFormatter.K_UNKNOWN, Scribe.BASIC_TRAILING_COMMENT);
	}
	return false;
}
 

import org.eclipse.jdt.internal.compiler.ast.LabeledStatement; //导入依赖的package包/类
public FlowContext getTargetContextForBreakLabel(char[] labelName) {
	FlowContext current = this, lastNonReturningSubRoutine = null;
	while (current != null) {
		if (current.isNonReturningContext()) {
			lastNonReturningSubRoutine = current;
		}
		char[] currentLabelName;
		if (((currentLabelName = current.labelName()) != null)
			&& CharOperation.equals(currentLabelName, labelName)) {
			((LabeledStatement)current.associatedNode).bits |= ASTNode.LabelUsed;
			if (lastNonReturningSubRoutine == null)
				return current;
			return lastNonReturningSubRoutine;
		}
		current = current.getLocalParent();
	}
	// not found
	return null;
}
 

import org.eclipse.jdt.internal.compiler.ast.LabeledStatement; //导入依赖的package包/类
protected void consumeStatementLabel() {
	// LabeledStatement ::= 'Identifier' ':' Statement
	// LabeledStatementNoShortIf ::= 'Identifier' ':' StatementNoShortIf

	//optimize push/pop
	Statement statement = (Statement) this.astStack[this.astPtr];
	this.astStack[this.astPtr] =
		new LabeledStatement(
			this.identifierStack[this.identifierPtr],
			statement,
			this.identifierPositionStack[this.identifierPtr--],
			this.endStatementPosition);
	this.identifierLengthPtr--;
}
 

import org.eclipse.jdt.internal.compiler.ast.LabeledStatement; //导入依赖的package包/类
public FlowContext getTargetContextForContinueLabel(char[] labelName) {
	FlowContext current = this;
	FlowContext lastContinuable = null;
	FlowContext lastNonReturningSubRoutine = null;

	while (current != null) {
		if (current.isNonReturningContext()) {
			lastNonReturningSubRoutine = current;
		} else {
			if (current.isContinuable()) {
				lastContinuable = current;
			}
		}

		char[] currentLabelName;
		if ((currentLabelName = current.labelName()) != null && CharOperation.equals(currentLabelName, labelName)) {
			((LabeledStatement)current.associatedNode).bits |= ASTNode.LabelUsed;

			// matching label found
			if ((lastContinuable != null)
					&& (current.associatedNode.concreteStatement()	== lastContinuable.associatedNode)) {

				if (lastNonReturningSubRoutine == null) return lastContinuable;
				return lastNonReturningSubRoutine;
			}
			// label is found, but not a continuable location
			return FlowContext.NotContinuableContext;
		}
		current = current.getLocalParent();
	}
	// not found
	return null;
}
 

import org.eclipse.jdt.internal.compiler.ast.LabeledStatement; //导入依赖的package包/类
public void unusedLabel(LabeledStatement statement) {
	int severity = computeSeverity(IProblem.UnusedLabel);
	if (severity == ProblemSeverities.Ignore) return;
	String[] arguments = new String[] {new String(statement.label)};
	this.handle(
		IProblem.UnusedLabel,
		arguments,
		arguments,
		severity,
		statement.sourceStart,
		statement.labelEnd);
}
 

import org.eclipse.jdt.internal.compiler.ast.LabeledStatement; //导入依赖的package包/类
@Override
public void endVisit(LabeledStatement x, BlockScope scope) {
  try {
    JStatement statement = pop(x.statement);
    if (statement == null) {
      push(null);
      return;
    }
    SourceInfo info = makeSourceInfo(x);
    push(new JLabeledStatement(info, getOrCreateLabel(info, x.label), statement));
  } catch (Throwable e) {
    throw translateException(x, e);
  }
}
 

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

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