Initial work for type metadata, with tests.

r/DESCRIPTION

@@ -12,10 +12,23 @@ Encoding: UTF-8
 LazyData: true
 SystemRequirements: C++11
 LinkingTo:
-    Rcpp
+    Rcpp (>= 0.12.18)
 Imports:
-    Rcpp
+    Rcpp (>= 0.12.18),
+    rlang,
+    purrr,
+    assertthat,
+    glue,
+    R6
 Roxygen: list(markdown = TRUE)
 RoxygenNote: 6.0.1.9000
 Suggests:
     testthat
+Collate:
+    'enums.R'
+    'R6.R'
+    'RcppExports.R'
+    'array.R'
+    'memory_pool.R'
+    'status.R'
+    'zzz.R'

r/NAMESPACE

@@ -1,4 +1,55 @@
 # Generated by roxygen2: do not edit by hand
 
+S3method("!=","arrow::Array")
+S3method("!=","arrow::DataType")
+S3method("!=","arrow::Field")
+S3method("$","arrow-enum")
+S3method("==","arrow::Array")
+S3method("==","arrow::DataType")
+S3method("==","arrow::Field")
+S3method(length,"arrow::Array")
+S3method(print,"arrow-enum")
+export(DateUnit)
+export(Field_initialize)
+export(MakeArray)
+export(StatusCode)
+export(TimeUnit)
+export(Type)
+export(array_data)
+export(boolean)
+export(date32)
+export(date64)
+export(decimal)
+export(float16)
+export(float32)
+export(float64)
+export(int16)
+export(int32)
+export(int64)
+export(int8)
+export(list_of)
+export(null)
+export(schema)
+export(struct)
+export(time32)
+export(time64)
+export(timestamp)
+export(uint16)
+export(uint32)
+export(uint64)
+export(uint8)
+export(utf8)
+exportPattern("^.*$")
+importFrom(R6,R6Class)
 importFrom(Rcpp,sourceCpp)
+importFrom(assertthat,assert_that)
+importFrom(glue,glue)
+importFrom(purrr,map)
+importFrom(purrr,map2)
+importFrom(purrr,map_chr)
+importFrom(purrr,map_int)
+importFrom(rlang,dots_n)
+importFrom(rlang,quo_name)
+importFrom(rlang,seq2)
+importFrom(rlang,set_names)
 useDynLib(arrow, .registration = TRUE)