Package com.sun.tools.javac.code

Examples of com.sun.tools.javac.code.Source.requiredTarget()

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        // this is needed for the continued functioning of the JSR14
        // prototype.
       
        DEBUG.P("sourceString="+sourceString);
    DEBUG.P("source="+source);
    DEBUG.P("source.requiredTarget()="+source.requiredTarget());
    DEBUG.P("targetString="+targetString);
    DEBUG.P("target="+target);
        //如果是"-target jsr14"，则不用执行下面的代码
    //target的版本号总是围绕source的版本号而变动的
        if (Character.isDigit(target.name.charAt(0))) {
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    DEBUG.P("target="+target);
        //如果是"-target jsr14"，则不用执行下面的代码
    //target的版本号总是围绕source的版本号而变动的
        if (Character.isDigit(target.name.charAt(0))) {
          //当target的版本号<source的版本号
            if (target.compareTo(source.requiredTarget()) < 0) {
                if (targetString != null) {
                    if (sourceString == null) {//指定-target，没指定-source的情况
                      /*错误例子:
                      F:\Javac>javac -target 1.4
            javac: 目标版本 1.4 与默认的源版本 1.5 冲突
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                      F:\Javac>javac -target 1.4
            javac: 目标版本 1.4 与默认的源版本 1.5 冲突
            */
                        warning("warn.target.default.source.conflict",
                                targetString,
                                source.requiredTarget().name);
                    } else {//指定-target，同时指定-source的情况
                      /*错误例子:
                      F:\Javac>javac -target 1.4 -source 1.5
            javac: 源版本 1.5 需要目标版本 1.5
            */
 
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                      F:\Javac>javac -target 1.4 -source 1.5
            javac: 源版本 1.5 需要目标版本 1.5
            */
                        warning("warn.source.target.conflict",
                                sourceString,
                                source.requiredTarget().name);
                    }
                    return null;
                } else {
                  //没有指定-target时，target取默认版本号(javac1.7默认是1.6)
                  //如果默认版本号还比source低，则target版本号由source决定
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                    }
                    return null;
                } else {
                  //没有指定-target时，target取默认版本号(javac1.7默认是1.6)
                  //如果默认版本号还比source低，则target版本号由source决定
                    options.put("-target", source.requiredTarget().name);
                }
            } else {
              //当target的版本号>=source的版本号且用户没在
              //javac命令行中指定“-target”选项，且不允许使用
              //泛型时，target版本默认为1.4
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        // profiles are not aligned with J2SE targets; moreover, a
        // single CLDC target may have many profiles.  In addition,
        // this is needed for the continued functioning of the JSR14
        // prototype.
        if (Character.isDigit(target.name.charAt(0))) {
            if (target.compareTo(source.requiredTarget()) < 0) {
                if (targetString != null) {
                    if (sourceString == null) {
                        warning("warn.target.default.source.conflict",
                                targetString,
                                source.requiredTarget().name);
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            if (target.compareTo(source.requiredTarget()) < 0) {
                if (targetString != null) {
                    if (sourceString == null) {
                        warning("warn.target.default.source.conflict",
                                targetString,
                                source.requiredTarget().name);
                    } else {
                        warning("warn.source.target.conflict",
                                sourceString,
                                source.requiredTarget().name);
                    }
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                                targetString,
                                source.requiredTarget().name);
                    } else {
                        warning("warn.source.target.conflict",
                                sourceString,
                                source.requiredTarget().name);
                    }
                    return null;
                } else {
                    target = source.requiredTarget();
                    options.put("-target", target.name);
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                                sourceString,
                                source.requiredTarget().name);
                    }
                    return null;
                } else {
                    target = source.requiredTarget();
                    options.put("-target", target.name);
                }
            } else {
                if (targetString == null && !source.allowGenerics()) {
                    target = Target.JDK1_4;
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        // profiles are not aligned with J2SE targets; moreover, a
        // single CLDC target may have many profiles.  In addition,
        // this is needed for the continued functioning of the JSR14
        // prototype.
        if (Character.isDigit(target.name.charAt(0)) &&
            target.compareTo(source.requiredTarget()) < 0) {
            if (targetString != null) {
                if (sourceString == null) {
                    warning("warn.target.default.source.conflict",
                            targetString,
                            source.requiredTarget().name);
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