public void visitVarInsn()

in org.eclipse.sisu.inject/src/org/eclipse/sisu/space/asm/MethodWriter.java [765:821]
48 lines of code
18 McCabe index (conditional complexity)

    public void visitVarInsn(final int opcode, final int var) {
        lastCodeOffset = code.length;
        // Label currentBlock = this.currentBlock;
        if (currentBlock != null) {
            if (compute == FRAMES) {
                currentBlock.frame.execute(opcode, var, null, null);
            } else {
                // updates current and max stack sizes
                if (opcode == Opcodes.RET) {
                    // no stack change, but end of current block (no successor)
                    currentBlock.status |= Label.RET;
                    // save 'stackSize' here for future use
                    // (see {@link #findSubroutineSuccessors})
                    currentBlock.inputStackTop = stackSize;
                    noSuccessor();
                } else { // xLOAD or xSTORE
                    int size = stackSize + Frame.SIZE[opcode];
                    if (size > maxStackSize) {
                        maxStackSize = size;
                    }
                    stackSize = size;
                }
            }
        }
        if (compute != NOTHING) {
            // updates max locals
            int n;
            if (opcode == Opcodes.LLOAD || opcode == Opcodes.DLOAD
                    || opcode == Opcodes.LSTORE || opcode == Opcodes.DSTORE) {
                n = var + 2;
            } else {
                n = var + 1;
            }
            if (n > maxLocals) {
                maxLocals = n;
            }
        }
        // adds the instruction to the bytecode of the method
        if (var < 4 && opcode != Opcodes.RET) {
            int opt;
            if (opcode < Opcodes.ISTORE) {
                /* ILOAD_0 */
                opt = 26 + ((opcode - Opcodes.ILOAD) << 2) + var;
            } else {
                /* ISTORE_0 */
                opt = 59 + ((opcode - Opcodes.ISTORE) << 2) + var;
            }
            code.putByte(opt);
        } else if (var >= 256) {
            code.putByte(196 /* WIDE */).put12(opcode, var);
        } else {
            code.put11(opcode, var);
        }
        if (opcode >= Opcodes.ISTORE && compute == FRAMES && handlerCount > 0) {
            visitLabel(new Label());
        }
    }