R: Loads an object from a file connection

.baseLoad {R.cache} | R Documentation

## Loads an object from a file connection

### Description

Loads an object from a file connection similar to `load`(), but without resetting file connections (to position zero).

WARNING: This is an internal function that should not be called by anything but the internal code of the R.cache package.

### Usage

    .baseLoad(con, envir=parent.frame())

### Arguments

`con` | A `connection`.
`envir` | An `environment` where the loaded object will be stored.

### Details

The reason why it is not possible to use `load`() is that that resets the file position of the connection before trying to load the object. The reason why that happens is because when you pass a regular file connection to `load`() it gets coerced via `gzcon`(), which is the function that resets the file position.

The workaround is to creat a local copy of `base::load()` and modify it by dropping the `gzcon()` coersion. This is possible because this function, that is `.baseLoad()`, is always called with a `gzfile()` `connection`.

### Value

Returns (invisible) a `character` `vector` of the names of objects loaded.

### See Also

This function is used by `loadCache`() and `readCacheHeader`().

[Package R.cache version 0.13.0 Index]