logging

Documentation

Index

• Variables
• func AnnotateSourceSpan(source *sources.Source, span ast.Span) string
• func LocationErrorf(source *sources.Source, span ast.Span, f string, args ...interface{}) error
• func LocationWarnf(source *sources.Source, span ast.Span, f string, args ...interface{}) error
• type Reporter
• type WriterReporter
  • func (w WriterReporter) AddError(err error)

Variables

var DefaultReporter = WriterReporter{os.Stderr}

DefaultReporter is the default reporter, which writes to stderr.

Functions

func AnnotateSourceSpan

func AnnotateSourceSpan(source *sources.Source, span ast.Span) string

AnnotateSourceSpan annotates a span from a single line in the source code. The output looks like:

(contents) or (other thing)
 ~~~~~~~~

func LocationErrorf

func LocationErrorf(source *sources.Source, span ast.Span, f string, args ...interface{}) error

LocationErrorf adds an error from a specific location.

func LocationWarnf

func LocationWarnf(source *sources.Source, span ast.Span, f string, args ...interface{}) error

LocationWarnf adds a warning from a specific location.

Types

type Reporter

type Reporter interface {
	AddError(error)
}

Reporter is an interface for reporting errors and warnings.

type WriterReporter

type WriterReporter struct {
	io.Writer
}

WriterReporter is a simple adapter for writing logs to an io.Writer. The default reporter is a WriterReporter(os.Stderr).

func (WriterReporter) AddError

func (w WriterReporter) AddError(err error)

AddError implements Reporter.