mw.visitVarInsn(ALOAD, 1);
mw.visitMethodInsn(INVOKEVIRTUAL, getType(DefaultJSONParser.class), "getLexer", "()" + getDesc(JSONLexer.class));
mw.visitTypeInsn(CHECKCAST, getType(JSONScanner.class)); // cast
mw.visitVarInsn(ASTORE, context.var("lexer"));
mw.visitVarInsn(ALOAD, context.var("lexer"));
mw.visitFieldInsn(GETSTATIC, getType(Feature.class), "SortFeidFastMatch", "L" + getType(Feature.class) + ";");
mw.visitMethodInsn(INVOKEVIRTUAL, getType(JSONScanner.class), "isEnabled", "(" + "L" + getType(Feature.class)
+ ";" + ")Z");
mw.visitJumpInsn(IFEQ, super_);