Examples of BlockCallback

org.jruby.runtime.BlockCallback
A simple interface for creating a callback using JRuby's block logic.

Examples of org.jruby.runtime.BlockCallback

        private static IRubyObject with_object_common(ThreadContext context, IRubyObject self,
                final IRubyObject arg, final Block block, final String rubyMethodName) {
            final Ruby runtime = context.getRuntime();
            if (!block.isGiven()) return enumeratorize(runtime, self , rubyMethodName, arg);


            RubyEnumerable.callEach(runtime, context, self, Arity.ONE_ARGUMENT, new BlockCallback() {
                public IRubyObject call(ThreadContext ctx, IRubyObject[] largs, Block blk) {
                    block.call(ctx, new IRubyObject[]{runtime.newArray(largs[0], arg)});
                    return runtime.getNil();
                }
            });

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Examples of org.jruby.runtime.BlockCallback

    @JRubyMethod(name = "detach", required = 1, module = true, visibility = PRIVATE)
    public static IRubyObject detach(ThreadContext context, IRubyObject recv, IRubyObject arg) {
        final int pid = (int)arg.convertToInteger().getLongValue();
        Ruby runtime = context.getRuntime();
        
        BlockCallback callback = new BlockCallback() {
            public IRubyObject call(ThreadContext context, IRubyObject[] args, Block block) {
                int[] status = new int[1];
                Ruby runtime = context.runtime;
                int result = checkErrno(runtime, runtime.getPosix().waitpid(pid, status, 0));

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Examples of org.jruby.runtime.BlockCallback

        final ThreadContext localContext = context;
        final int result[];
        
        if (block.isGiven()) {
            result = new int[] { 0 };
            callEach(runtime, context, self, block.arity(), new BlockCallback() {
                public IRubyObject call(ThreadContext ctx, IRubyObject[] largs, Block blk) {
                    checkContext(localContext, ctx, "count");
                    IRubyObject larg = checkArgs(runtime, largs);
                    if (block.yield(ctx, larg).isTrue()) {
                        result[0]++; 
                    }
                    return runtime.getNil();
                }
            });
        } else {
            if (self.respondsTo("size")) return self.callMethod(context, "size");


            result = new int[] { 0 };
            callEach(runtime, context, self, block.arity(), new BlockCallback() {
                public IRubyObject call(ThreadContext ctx, IRubyObject[] largs, Block blk) {
                    checkContext(localContext, ctx, "count");
                    result[0]++;
                    return runtime.getNil();
                }

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Examples of org.jruby.runtime.BlockCallback

        final ThreadContext localContext = context;
        final int result[] = new int[] { 0 };
        
        if (block.isGiven()) runtime.getWarnings().warn(ID.BLOCK_UNUSED , "given block not used");
        
        callEach(runtime, context, self, block.arity(), new BlockCallback() {
            public IRubyObject call(ThreadContext ctx, IRubyObject[] largs, Block block) {
                IRubyObject larg = checkArgs(runtime, largs);
                checkContext(localContext, ctx, "count");
                if (larg.equals(arg)) result[0]++;
                return runtime.getNil();

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Examples of org.jruby.runtime.BlockCallback

     */
    private static IRubyObject cycleCommon(ThreadContext context, IRubyObject self, long nv, final Block block) {
        final Ruby runtime = context.getRuntime();
        final RubyArray result = runtime.newArray();


        callEach(runtime, context, self, block.arity(), new BlockCallback() {
                public IRubyObject call(ThreadContext ctx, IRubyObject[] largs, Block blk) {
                    IRubyObject larg = checkArgs(runtime, largs);
                    synchronized (result) {
                        result.append(larg);
                    }

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Examples of org.jruby.runtime.BlockCallback

        if (len == 0) return runtime.newEmptyArray();


        final RubyArray result = runtime.newArray();


        try {
            callEach(runtime, context, self, block.arity(), new BlockCallback() {
                long i = len; // Atomic ?
                public IRubyObject call(ThreadContext ctx, IRubyObject[] largs, Block blk) {
                    IRubyObject larg = checkArgs(runtime, largs);
                    synchronized (result) {
                        result.append(larg);

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Examples of org.jruby.runtime.BlockCallback


        final Ruby runtime = context.getRuntime();
        final RubyArray result = runtime.newArray();


        try {
            callEach(runtime, context, self, block.arity(), new BlockCallback() {
                public IRubyObject call(ThreadContext ctx, IRubyObject[] largs, Block blk) {
                    IRubyObject larg = checkArgs(runtime, largs);
                    if (!block.yield(ctx, larg).isTrue()) throw JumpException.SPECIAL_JUMP;
                    synchronized (result) {
                        result.append(larg);

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Examples of org.jruby.runtime.BlockCallback

        if (len < 0) throw runtime.newArgumentError("attempt to drop negative size");


        final RubyArray result = runtime.newArray();


        try {
            callEach(runtime, context, self, block.arity(), new BlockCallback() {
                long i = len; // Atomic ?
                public IRubyObject call(ThreadContext ctx, IRubyObject[] largs, Block blk) {
                    IRubyObject larg = checkArgs(runtime, largs);
                    synchronized (result) {
                        if (i == 0) {

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Examples of org.jruby.runtime.BlockCallback


        final Ruby runtime = context.getRuntime();
        final RubyArray result = runtime.newArray();


        try {
            callEach(runtime, context, self, block.arity(), new BlockCallback() {
                boolean memo = false;
                public IRubyObject call(ThreadContext ctx, IRubyObject[] largs, Block blk) {
                    IRubyObject larg = checkArgs(runtime, largs);
                    if (!memo && !block.yield(ctx, larg).isTrue()) memo = true;
                    if (memo) synchronized (result) {

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Examples of org.jruby.runtime.BlockCallback

        final ThreadContext localContext = context;
        
        final IRubyObject[] holder = new IRubyObject[]{runtime.getNil()};


        try {
            callEach(runtime, context, self, Arity.ONE_ARGUMENT, new BlockCallback() {
                    public IRubyObject call(ThreadContext ctx, IRubyObject[] largs, Block blk) {
                        IRubyObject larg = checkArgs(runtime, largs);
                        checkContext(localContext, ctx, "first");
                        holder[0] = larg;
                        throw JumpException.SPECIAL_JUMP;

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