in plugin/src/main/groovy/grails/plugins/redis/ast/AbstractMemoizeASTTransformation.groovy [251:261]
static void addRedisServiceMemoizeExpireExpression(Map memoizeProperties, ArgumentListExpression argumentListExpression) {
if (memoizeProperties.get(EXPIRE).toString().contains(HASH_CODE)) {
def ast = new AstBuilder().buildFromString("""
Integer.parseInt("${memoizeProperties.get(EXPIRE).toString().replace(HASH_CODE, GSTRING).toString()}")
""")
argumentListExpression.addExpression(ast[0].statements[0].expression)
} else {
argumentListExpression.addExpression(makeConstantExpression(Integer.parseInt(memoizeProperties.get(EXPIRE).toString())))
}
}