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predeclared Build Status Godoc

Find code that overrides one of Go's predeclared identifiers (new, make, append uint, etc.).

The list of predeclared identifiers can be found in the spec.

go get github.com/nishanths/predeclared

See godoc or run predeclared without arguments to print usage.

Test

cd passes/predeclared && go test

Examples

Given a package with the file:

package pkg // import "example.org/foo/pkg"

func copy()  {}
func print() {}

func foo() string {
	string := "x"
	return string
}

type int struct{}

running:

predeclared example.org/foo/pkg

prints:

example.go:3:6: function "copy" has same name as predeclared identifier
example.go:4:6: function "print" has same name as predeclared identifier
example.go:7:2: variable "string" has same name as predeclared identifier
example.go:11:6: type "int" has same name as predeclared identifier

Running the program on the standard library's text package and subpackages produces:

$ predeclared text/...
/usr/local/go/src/text/template/parse/node.go:554:33: param "true" has same name as predeclared identifier
/usr/local/go/src/text/template/parse/node.go:599:3: variable "rune" has same name as predeclared identifier
/usr/local/go/src/text/template/funcs.go:164:36: param "cap" has same name as predeclared identifier
/usr/local/go/src/text/template/funcs.go:233:3: variable "cap" has same name as predeclared identifier
/usr/local/go/src/text/template/template.go:218:30: param "new" has same name as predeclared identifier
/usr/local/go/src/text/template/exec_test.go:232:21: param "error" has same name as predeclared identifier