Java TokenTypes.FOR_EACH_CLAUSE属性代码示例

@Override
public int[] getRequiredTokens() {
    return new int[] {
        TokenTypes.OBJBLOCK,
        TokenTypes.LITERAL_FOR,
        TokenTypes.FOR_ITERATOR,
        TokenTypes.FOR_EACH_CLAUSE,
        TokenTypes.ASSIGN,
        TokenTypes.PLUS_ASSIGN,
        TokenTypes.MINUS_ASSIGN,
        TokenTypes.STAR_ASSIGN,
        TokenTypes.DIV_ASSIGN,
        TokenTypes.MOD_ASSIGN,
        TokenTypes.SR_ASSIGN,
        TokenTypes.BSR_ASSIGN,
        TokenTypes.SL_ASSIGN,
        TokenTypes.BAND_ASSIGN,
        TokenTypes.BXOR_ASSIGN,
        TokenTypes.BOR_ASSIGN,
        TokenTypes.INC,
        TokenTypes.POST_INC,
        TokenTypes.DEC,
        TokenTypes.POST_DEC,
    };
}
 

@Override
public void visitToken(DetailAST ast) {
    // don't flag interfaces
    final DetailAST container = ast.getParent().getParent();
    if (container.getType() != TokenTypes.INTERFACE_DEF) {
        if (ast.getType() == TokenTypes.LITERAL_CATCH) {
            visitCatch(ast);
        }
        else if (ast.getType() == TokenTypes.FOR_EACH_CLAUSE) {
            visitForEachClause(ast);
        }
        else {
            visitMethod(ast);
        }
    }
}
 

@Override
public void visitToken(DetailAST ast) {
    switch (ast.getType()) {
        case TokenTypes.OBJBLOCK:
            enterBlock();
            break;
        case TokenTypes.LITERAL_FOR:
        case TokenTypes.FOR_ITERATOR:
        case TokenTypes.FOR_EACH_CLAUSE:
            //we need that Tokens only at leaveToken()
            break;
        case TokenTypes.ASSIGN:
        case TokenTypes.PLUS_ASSIGN:
        case TokenTypes.MINUS_ASSIGN:
        case TokenTypes.STAR_ASSIGN:
        case TokenTypes.DIV_ASSIGN:
        case TokenTypes.MOD_ASSIGN:
        case TokenTypes.SR_ASSIGN:
        case TokenTypes.BSR_ASSIGN:
        case TokenTypes.SL_ASSIGN:
        case TokenTypes.BAND_ASSIGN:
        case TokenTypes.BXOR_ASSIGN:
        case TokenTypes.BOR_ASSIGN:
        case TokenTypes.INC:
        case TokenTypes.POST_INC:
        case TokenTypes.DEC:
        case TokenTypes.POST_DEC:
            checkIdent(ast);
            break;
        default:
            throw new IllegalStateException(ILLEGAL_TYPE_OF_TOKEN + ast);
    }
}
 

@Override
public int[] getAcceptableTokens() {
    return new int[] {
        TokenTypes.METHOD_DEF,
        TokenTypes.CTOR_DEF,
        TokenTypes.LITERAL_CATCH,
        TokenTypes.FOR_EACH_CLAUSE,
    };
}
 

@Override
public void leaveToken(DetailAST ast) {
    switch (ast.getType()) {
        case TokenTypes.FOR_ITERATOR:
            leaveForIter(ast.getParent());
            break;
        case TokenTypes.FOR_EACH_CLAUSE:
            if (!skipEnhancedForLoopVariable) {
                final DetailAST paramDef = ast.findFirstToken(TokenTypes.VARIABLE_DEF);
                leaveForEach(paramDef);
            }
            break;
        case TokenTypes.LITERAL_FOR:
            if (!getCurrentVariables().isEmpty()) {
                leaveForDef(ast);
            }
            break;
        case TokenTypes.OBJBLOCK:
            exitBlock();
            break;
        case TokenTypes.ASSIGN:
        case TokenTypes.PLUS_ASSIGN:
        case TokenTypes.MINUS_ASSIGN:
        case TokenTypes.STAR_ASSIGN:
        case TokenTypes.DIV_ASSIGN:
        case TokenTypes.MOD_ASSIGN:
        case TokenTypes.SR_ASSIGN:
        case TokenTypes.BSR_ASSIGN:
        case TokenTypes.SL_ASSIGN:
        case TokenTypes.BAND_ASSIGN:
        case TokenTypes.BXOR_ASSIGN:
        case TokenTypes.BOR_ASSIGN:
        case TokenTypes.INC:
        case TokenTypes.POST_INC:
        case TokenTypes.DEC:
        case TokenTypes.POST_DEC:
            //we need that Tokens only at visitToken()
            break;
        default:
            throw new IllegalStateException(ILLEGAL_TYPE_OF_TOKEN + ast);
    }
}
 

/**
 * Checks if a variable is the loop's one.
 * @param variableDef variable definition.
 * @return true if a variable is the loop's one.
 */
private static boolean isForLoopVariable(DetailAST variableDef) {
    final int parentType = variableDef.getParent().getType();
    return parentType == TokenTypes.FOR_INIT
            || parentType == TokenTypes.FOR_EACH_CLAUSE;
}
 

/**
 * Determines whether enhanced for-loop variable should be checked or not.
 * @param ast The ast to compare.
 * @return true if enhanced for-loop variable should be checked.
 */
private boolean shouldCheckEnhancedForLoopVariable(DetailAST ast) {
    return validateEnhancedForLoopVariable
            || ast.getParent().getType() != TokenTypes.FOR_EACH_CLAUSE;
}
 

/**
 * Whether colon belongs to for-each.
 * @param currentType current
 * @param parentType parent
 * @return true if current token in colon of for-each token
 */
private boolean isColonOfForEach(int currentType, int parentType) {
    return currentType == TokenTypes.COLON
            && parentType == TokenTypes.FOR_EACH_CLAUSE
            && ignoreEnhancedForColon;
}