! go mod init gopkg.in/pkg
stderr '(?s)^go: invalid module path "gopkg.in/pkg": module paths beginning with gopkg.in/ must always have a major version suffix in the form of .vN(.*)go mod init gopkg.in/pkg.v1$'

! go mod init gopkg.in/user/pkg
stderr '(?s)^go: invalid module path "gopkg.in/user/pkg": module paths beginning with gopkg.in/ must always have a major version suffix in the form of .vN(.*)go mod init gopkg.in/user/pkg.v1$'

! go list -m rsc.io/quote@latest
stderr '^go: module rsc.io/quote: invalid response from proxy "'$GOPROXY'": invalid character ''i'' looking for beginning of value$'

! go list -m rsc.io/quote@1.5.2

class CancellationCrossVersionSpec extends ToolingApiSpecification {
    def setup() {
        settingsFile << '''
rootProject.name = 'cancelling'
'''
    }

    def "early cancel stops the build before beginning"() {
        buildFile << """
throw new GradleException("should not run")
"""
        def cancel = GradleConnector.newCancellationTokenSource()
        def resultHandler = new TestResultHandler()

        when:

		return scanBeginLiteral
	case '0': // beginning of 0.123
		s.step = state0
		return scanBeginLiteral
	case 't': // beginning of true
		s.step = stateT
		return scanBeginLiteral
	case 'f': // beginning of false
		s.step = stateF
		return scanBeginLiteral
	case 'n': // beginning of null
		s.step = stateN
		return scanBeginLiteral
	}
	if '1' <= c && c <= '9' { // beginning of 1234.5
		s.step = state1

# Test that go list prefix... does not read directories not beginning with prefix.
env GODEBUG=gofsystrace=1
go list m...
stderr mime
stderr mime[\\/]multipart

		err = fmt.Errorf("invalid archive header")
		return
	}
	name = strings.TrimSpace(string(hdr[:16]))
	return
}

// FindExportData positions the reader r at the beginning of the
// export data section of an underlying GC-created object/archive
// file by reading from it. The reader must be positioned at the
// start of the file before calling this function. The hdr result

	C_EXT     = 2   // External symbol
	C_STAT    = 3   // Static symbol
	C_BLOCK   = 100 // Beginning or end of inner block
	C_FCN     = 101 // Beginning or end of function
	C_FILE    = 103 // Source file name and compiler information
	C_HIDEXT  = 107 // Unnamed external symbol
	C_BINCL   = 108 // Beginning of include file
	C_EINCL   = 109 // End of include file
	C_WEAKEXT = 111 // Weak external symbol

// Package structs defines marker types that can be used as struct fields
// to modify the properties of a struct.
//
// By convention, a marker type should be used as the type of a field
// named "_", placed at the beginning of a struct type definition.

# https://go.dev/issue/51473: to avoid the need for generators to rely on
# runtime.GOROOT, 'go generate' should run the test with its own GOROOT/bin
# at the beginning of $PATH.

[short] skip

[!GOOS:plan9] env PATH=
[GOOS:plan9] env path=
go generate .

[!GOOS:plan9] env PATH=$WORK${/}bin
[GOOS:plan9] env path=$WORK${/}bin
go generate .

-- go.mod --
module example

go 1.19
-- main.go --
//go:generate go run .

	var context string
	switch dec.tokenState {
	case tokenTopValue:
		context = " looking for beginning of value"
	case tokenArrayStart, tokenArrayValue, tokenObjectValue:
		context = " looking for beginning of value"
	case tokenArrayComma:
		context = " after array element"
	case tokenObjectKey:
		context = " looking for beginning of object key string"
	case tokenObjectColon:
		context = " after object key"