91 lines
3.3 KiB
R
91 lines
3.3 KiB
R
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library(compiler)
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##
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## Tests for findHomeNS()
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##
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findHomeNS <- compiler:::findHomeNS
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## return value for an undefinded variable should be NULL
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stopifnot(is.null(findHomeNS("foo", getNamespace("stats"))))
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stopifnot(is.null(findHomeNS("foo", parent.env(getNamespace("stats")))))
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stopifnot(is.null(findHomeNS("foo", getNamespace("base"))))
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## + is found in .BaseNamespaceEnv for stats or base
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stopifnot(identical(findHomeNS("+", getNamespace("stats")),
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.BaseNamespaceEnv))
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stopifnot(identical(findHomeNS("+", parent.env(getNamespace("stats"))),
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.BaseNamespaceEnv))
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stopifnot(identical(findHomeNS("+", getNamespace("base")),
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.BaseNamespaceEnv))
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## dnorm is defined in stats
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stopifnot(identical(findHomeNS("dnorm", getNamespace("stats")),
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getNamespace("stats")))
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stopifnot(identical(findHomeNS("dnorm", parent.env(getNamespace("stats"))),
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getNamespace("stats")))
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stopifnot(is.null(findHomeNS("dnorm", getNamespace("base"))))
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## par is available via the stats namespace since stats imports graphics
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stopifnot(identical(findHomeNS("par", getNamespace("stats")),
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getNamespace("graphics")))
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stopifnot(identical(findHomeNS("par", parent.env(getNamespace("stats"))),
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getNamespace("graphics")))
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stopifnot(is.null(findHomeNS("par", getNamespace("base"))))
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## palette is one of a small set of selective imports from grDevices
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stopifnot(identical(findHomeNS("palette", getNamespace("stats")),
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getNamespace("grDevices")))
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stopifnot(identical(findHomeNS("palette", parent.env(getNamespace("stats"))),
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getNamespace("grDevices")))
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stopifnot(is.null(findHomeNS("palette", getNamespace("base"))))
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##
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## Tests for getAssignedVar
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##
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getAssignedVar <- compiler:::getAssignedVar
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stopifnot(identical(getAssignedVar(quote("v"<-x)), "v"))
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stopifnot(identical(getAssignedVar(quote(v<-x)), "v"))
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stopifnot(identical(getAssignedVar(quote(f(v)<-x)), "v"))
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stopifnot(identical(getAssignedVar(quote(f(g(v,2),1)<-x)), "v"))
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##
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## Tests for findLocals
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##
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findLocals <- compiler:::findLocals
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cenv <- compiler:::makeCenv(.GlobalEnv)
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cntxt <- compiler:::make.toplevelContext(cenv, NULL)
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stopifnot(identical(findLocals(quote(x<-1), cntxt), "x"))
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stopifnot(identical(findLocals(quote(f(x)<-1), cntxt), "x"))
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stopifnot(identical(findLocals(quote(f(g(x,2),1)<-1), cntxt), "x"))
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stopifnot(identical(findLocals(quote(x<-y<-1), cntxt), c("x","y")))
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stopifnot(identical(findLocals(quote(local(x<-1,e)), cntxt), "x"))
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stopifnot(identical(findLocals(quote(local(x<-1)), cntxt), character(0)))
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stopifnot(identical(findLocals(quote({local<-1;local(x<-1)}), cntxt),
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c("local", "x")))
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local({
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f <- function (f, x, y) {
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local <- f
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local(x <- y)
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x
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}
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stopifnot(identical(findLocals(body(f), cntxt), c("local","x")))
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})
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local({
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cenv <- compiler:::addCenvVars(cenv, "local")
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cntxt <- compiler:::make.toplevelContext(cenv, NULL)
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stopifnot(identical(findLocals(quote(local(x<-1,e)), cntxt), "x"))
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})
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stopifnot(identical(findLocals(quote(assign(x, 3)), cntxt), character(0)))
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stopifnot(identical(findLocals(quote(assign("x", 3)), cntxt), "x"))
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stopifnot(identical(findLocals(quote(assign("x", 3, 4)), cntxt), character(0)))
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