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Package analysisflags

Variables

flags common to all {single,multi,unit}checkers.

var (
    JSON    = false // -json
    Context = -1    // -c=N: if N>0, display offending line plus N lines of context
)

func Help ¶

func Help(progname string, analyzers []*analysis.Analyzer, args []string)

Help implements the help subcommand for a multichecker or unitchecker style command. The optional args specify the analyzers to describe. Help calls log.Fatal if no such analyzer exists.

func Parse ¶

func Parse(analyzers []*analysis.Analyzer, multi bool) []*analysis.Analyzer

Parse creates a flag for each of the analyzer's flags, including (in multi mode) a flag named after the analyzer, parses the flags, then filters and returns the list of analyzers enabled by flags.

The result is intended to be passed to unitchecker.Run or checker.Run. Use in unitchecker.Run will gob.Register all fact types for the returned graph of analyzers but of course not the ones only reachable from dropped analyzers. To avoid inconsistency about which gob types are registered from run to run, Parse itself gob.Registers all the facts only reachable from dropped analyzers. This is not a particularly elegant API, but this is an internal package.

func PrintPlain ¶

func PrintPlain(fset *token.FileSet, diag analysis.Diagnostic)

PrintPlain prints a diagnostic in plain text form, with context specified by the -c flag.

func ResolveURL ¶

func ResolveURL(a *analysis.Analyzer, d analysis.Diagnostic) (string, error)

ResolveURL resolves the URL field for a Diagnostic from an Analyzer and returns the URL. See Diagnostic.URL for details.

type JSONDiagnostic ¶

A JSONDiagnostic can be used to encode and decode analysis.Diagnostics to and from JSON. TODO(matloob): Should the JSON diagnostics contain ranges? If so, how should they be formatted?

type JSONDiagnostic struct {
    Category       string             `json:"category,omitempty"`
    Posn           string             `json:"posn"`
    Message        string             `json:"message"`
    SuggestedFixes []JSONSuggestedFix `json:"suggested_fixes,omitempty"`
}

type JSONSuggestedFix ¶

A JSONSuggestedFix describes an edit that should be applied as a whole or not at all. It might contain multiple TextEdits/text_edits if the SuggestedFix consists of multiple non-contiguous edits.

type JSONSuggestedFix struct {
    Message string         `json:"message"`
    Edits   []JSONTextEdit `json:"edits"`
}

type JSONTextEdit ¶

A TextEdit describes the replacement of a portion of a file. Start and End are zero-based half-open indices into the original byte sequence of the file, and New is the new text.

type JSONTextEdit struct {
    Filename string `json:"filename"`
    Start    int    `json:"start"`
    End      int    `json:"end"`
    New      string `json:"new"`
}

type JSONTree ¶

A JSONTree is a mapping from package ID to analysis name to result. Each result is either a jsonError or a list of JSONDiagnostic.

type JSONTree map[string]map[string]interface{}

func (JSONTree) Add ¶

func (tree JSONTree) Add(fset *token.FileSet, id, name string, diags []analysis.Diagnostic, err error)

Add adds the result of analysis 'name' on package 'id'. The result is either a list of diagnostics or an error.

func (JSONTree) Print ¶

func (tree JSONTree) Print()