| |
| library(compiler) |
| |
| ## |
| ## Test code for constant folding |
| ## |
| |
| makeCenv <- compiler:::makeCenv |
| checkConst <- compiler:::checkConst |
| constantFoldSym <- compiler:::constantFoldSym |
| constantFold <- compiler:::constantFold |
| |
| ## using a global environment |
| ce <- makeCenv(.GlobalEnv) |
| stopifnot(identical(constantFoldSym(quote(pi), list(env = ce, optimize = 3)), |
| checkConst(base::pi))) |
| stopifnot(identical(constantFoldSym(quote(pi), list(env = ce, optimize = 2)), |
| NULL)) |
| stopifnot(identical(constantFoldSym(quote(pi), list(env = ce, optimize = 1)), |
| NULL)) |
| stopifnot(identical(constantFoldSym(quote(pi), list(env = ce, optimize = 0)), |
| NULL)) |
| stopifnot(identical(constantFold(quote(1 + 2), list(optimize = 3, env = ce)), |
| checkConst(1 + 2))) |
| stopifnot(identical(constantFold(quote(1 + 2), list(optimize = 2, env = ce)), |
| checkConst(1 + 2))) |
| stopifnot(identical(constantFold(quote(1 + 2), list(optimize = 1, env = ce)), |
| NULL)) |
| stopifnot(identical(constantFold(quote(1 + 2), list(optimize = 0, env = ce)), |
| NULL)) |
| stopifnot(identical(constantFold(quote(sqrt(2)), list(optimize = 3, env = ce)), |
| checkConst(sqrt(2)))) |
| stopifnot(identical(constantFold(quote(sqrt(2)), list(optimize = 2, env = ce)), |
| NULL)) |
| stopifnot(identical(constantFold(quote(sqrt(2)), list(optimize = 1, env = ce)), |
| NULL)) |
| stopifnot(identical(constantFold(quote(sqrt(2)), list(optimize = 0, env = ce)), |
| NULL)) |
| |
| ## using a namespace environment |
| ce <- makeCenv(getNamespace("stats")) |
| stopifnot(identical(constantFoldSym(quote(pi), list(env = ce, optimize = 3)), |
| list(value = base::pi))) |
| stopifnot(identical(constantFoldSym(quote(pi), list(env = ce, optimize = 2)), |
| list(value = base::pi))) |
| stopifnot(identical(constantFoldSym(quote(pi), list(env = ce, optimize = 1)), |
| checkConst(base::pi))) |
| stopifnot(identical(constantFoldSym(quote(pi), list(env = ce, optimize = 0)), |
| NULL)) |
| stopifnot(identical(constantFold(quote(1 + 2), list(optimize = 3, env = ce)), |
| checkConst(1 + 2))) |
| stopifnot(identical(constantFold(quote(1 + 2), list(optimize = 2, env = ce)), |
| checkConst(1 + 2))) |
| stopifnot(identical(constantFold(quote(1 + 2), list(optimize = 1, env = ce)), |
| checkConst(1 + 2))) |
| stopifnot(identical(constantFold(quote(1 + 2), list(optimize = 0, env = ce)), |
| NULL)) |
| stopifnot(identical(constantFold(quote(sqrt(2)), list(optimize = 3, env = ce)), |
| checkConst(sqrt(2)))) |
| stopifnot(identical(constantFold(quote(sqrt(2)), list(optimize = 2, env = ce)), |
| checkConst(sqrt(2)))) |
| stopifnot(identical(constantFold(quote(sqrt(2)), list(optimize = 1, env = ce)), |
| checkConst(sqrt(2)))) |
| stopifnot(identical(constantFold(quote(sqrt(2)), list(optimize = 0, env = ce)), |
| NULL)) |
