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# file
--
import "github.com/robertkrimen/otto/file"
Package file encapsulates the file abstractions used by the ast & parser.
## Usage
#### type File
```go
type File struct {
}
```
#### func NewFile
```go
func NewFile(filename, src string, base int) *File
```
#### func (*File) Base
```go
func (fl *File) Base() int
```
#### func (*File) Name
```go
func (fl *File) Name() string
```
#### func (*File) Source
```go
func (fl *File) Source() string
```
#### type FileSet
```go
type FileSet struct {
}
```
A FileSet represents a set of source files.
#### func (*FileSet) AddFile
```go
func (self *FileSet) AddFile(filename, src string) int
```
AddFile adds a new file with the given filename and src.
This an internal method, but exported for cross-package use.
#### func (*FileSet) File
```go
func (self *FileSet) File(idx Idx) *File
```
#### func (*FileSet) Position
```go
func (self *FileSet) Position(idx Idx) *Position
```
Position converts an Idx in the FileSet into a Position.
#### type Idx
```go
type Idx int
```
Idx is a compact encoding of a source position within a file set. It can be
converted into a Position for a more convenient, but much larger,
representation.
#### type Position
```go
type Position struct {
Filename string // The filename where the error occurred, if any
Offset int // The src offset
Line int // The line number, starting at 1
Column int // The column number, starting at 1 (The character count)
}
```
Position describes an arbitrary source position including the filename, line,
and column location.
#### func (*Position) String
```go
func (self *Position) String() string
```
String returns a string in one of several forms:
file:line:column A valid position with filename
line:column A valid position without filename
file An invalid position with filename
- An invalid position without filename
--
**godocdown** http://github.com/robertkrimen/godocdown
|
