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mirror of https://github.com/golang/go synced 2024-11-22 16:04:40 -07:00

go/types: cleanup panic calls

This is a port of CL 339969 to go/types. It differs slightly in
errors.go, due to the differing API.

Change-Id: Ie2bf84ebf312ea3872ee6706615dfc6169a32405
Reviewed-on: https://go-review.googlesource.com/c/go/+/342431
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
This commit is contained in:
Robert Findley 2021-08-15 20:44:49 -04:00
parent 11a1f37b07
commit a192ef8ac4
11 changed files with 24 additions and 24 deletions

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@ -339,7 +339,7 @@ func (check *Checker) validType(typ Type, path []Object) typeInfo {
// cycle detected
for i, tn := range path {
if t.obj.pkg != check.pkg {
panic("internal error: type cycle via package-external type")
panic("type cycle via package-external type")
}
if tn == t.obj {
check.cycleError(path[i:])
@ -347,7 +347,7 @@ func (check *Checker) validType(typ Type, path []Object) typeInfo {
return t.info
}
}
panic("internal error: cycle start not found")
panic("cycle start not found")
}
return t.info
}

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@ -68,7 +68,7 @@ func (check *Checker) sprintf(format string, args ...interface{}) string {
case nil:
arg = "<nil>"
case operand:
panic("internal error: should always pass *operand")
panic("got operand instead of *operand")
case *operand:
arg = operandString(a, check.qualifier)
case token.Pos:
@ -236,7 +236,7 @@ func (s atPos) Pos() token.Pos {
func spanOf(at positioner) posSpan {
switch x := at.(type) {
case nil:
panic("internal error: nil")
panic("nil positioner")
case posSpan:
return x
case ast.Node:

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@ -320,7 +320,7 @@ func (check *Checker) missingMethod(V Type, T *Interface, static bool) (method,
return m, f
}
if ftyp.TParams().Len() > 0 {
panic("internal error: method with type parameters")
panic("method with type parameters")
}
// If the methods have type parameters we don't care whether they
@ -372,7 +372,7 @@ func (check *Checker) missingMethod(V Type, T *Interface, static bool) (method,
return m, f
}
if ftyp.TParams().Len() > 0 {
panic("internal error: method with type parameters")
panic("method with type parameters")
}
// If V is a (instantiated) generic type, its methods are still

View File

@ -33,7 +33,7 @@ type Named struct {
// The underlying type must not be a *Named.
func NewNamed(obj *TypeName, underlying Type, methods []*Func) *Named {
if _, ok := underlying.(*Named); ok {
panic("types.NewNamed: underlying type must not be *Named")
panic("underlying type must not be *Named")
}
return (*Checker)(nil).newNamed(obj, nil, underlying, nil, methods)
}
@ -100,7 +100,7 @@ func (check *Checker) newNamed(obj *TypeName, orig *Named, underlying Type, tpar
check.later(func() {
switch typ.under().(type) {
case *Named:
panic("internal error: unexpanded underlying type")
panic("unexpanded underlying type")
}
typ.check = nil
})
@ -144,10 +144,10 @@ func (t *Named) Method(i int) *Func { return t.load().methods[i] }
// SetUnderlying sets the underlying type and marks t as complete.
func (t *Named) SetUnderlying(underlying Type) {
if underlying == nil {
panic("types.Named.SetUnderlying: underlying type must not be nil")
panic("underlying type must not be nil")
}
if _, ok := underlying.(*Named); ok {
panic("types.Named.SetUnderlying: underlying type must not be *Named")
panic("underlying type must not be *Named")
}
t.load().underlying = underlying
}
@ -195,7 +195,7 @@ func (n0 *Named) under() Type {
}
if n0.check == nil {
panic("internal error: Named.check == nil but type is incomplete")
panic("Named.check == nil but type is incomplete")
}
// Invariant: after this point n0 as well as any named types in its
@ -246,7 +246,7 @@ func (n0 *Named) under() Type {
// Also, doing so would lead to a race condition (was issue #31749).
// Do this check always, not just in debug mode (it's cheap).
if n.obj.pkg != check.pkg {
panic("internal error: imported type with unresolved underlying type")
panic("imported type with unresolved underlying type")
}
n.underlying = u
}

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@ -38,10 +38,10 @@ func NewSignature(recv *Var, params, results *Tuple, variadic bool) *Signature {
if variadic {
n := params.Len()
if n == 0 {
panic("types.NewSignature: variadic function must have at least one parameter")
panic("variadic function must have at least one parameter")
}
if _, ok := params.At(n - 1).typ.(*Slice); !ok {
panic("types.NewSignature: variadic parameter must be of unnamed slice type")
panic("variadic parameter must be of unnamed slice type")
}
}
return &Signature{recv: recv, params: params, results: results, variadic: variadic}

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@ -15,7 +15,7 @@ import (
func (check *Checker) funcBody(decl *declInfo, name string, sig *Signature, body *ast.BlockStmt, iota constant.Value) {
if check.conf.IgnoreFuncBodies {
panic("internal error: function body not ignored")
panic("function body not ignored")
}
if trace {

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@ -77,7 +77,7 @@ func (t *TypeParam) Constraint() Type {
// SetConstraint sets the type constraint for t.
func (t *TypeParam) SetConstraint(bound Type) {
if bound == nil {
panic("types2.TypeParam.SetConstraint: bound must not be nil")
panic("nil constraint")
}
t.bound = bound
}
@ -113,7 +113,7 @@ func bindTParams(list []*TypeName) *TypeParams {
for i, tp := range list {
typ := tp.Type().(*TypeParam)
if typ.index >= 0 {
panic("internal error: type parameter bound more than once")
panic("type parameter bound more than once")
}
typ.index = i
}

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@ -323,10 +323,10 @@ func sortMethods(list []*Func) {
func assertSortedMethods(list []*Func) {
if !debug {
panic("internal error: assertSortedMethods called outside debug mode")
panic("assertSortedMethods called outside debug mode")
}
if !sort.IsSorted(byUniqueMethodName(list)) {
panic("internal error: methods not sorted")
panic("methods not sorted")
}
}

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@ -132,7 +132,7 @@ func writeType(buf *bytes.Buffer, typ Type, qf Qualifier, visited []Type) {
// Unions only appear as (syntactic) embedded elements
// in interfaces and syntactically cannot be empty.
if t.NumTerms() == 0 {
panic("internal error: empty union")
panic("empty union")
}
for i, t := range t.terms {
if i > 0 {
@ -185,7 +185,7 @@ func writeType(buf *bytes.Buffer, typ Type, qf Qualifier, visited []Type) {
case RecvOnly:
s = "<-chan "
default:
panic("unreachable")
unreachable()
}
buf.WriteString(s)
if parens {
@ -332,7 +332,7 @@ func writeTuple(buf *bytes.Buffer, tup *Tuple, variadic bool, qf Qualifier, visi
// special case:
// append(s, "foo"...) leads to signature func([]byte, string...)
if t := asBasic(typ); t == nil || t.kind != String {
panic("internal error: string type expected")
panic("expected string type")
}
writeType(buf, typ, qf, visited)
buf.WriteString("...")

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@ -133,7 +133,7 @@ func overlappingTerm(terms []*term, y *term) int {
// disjoint requires non-nil, non-top arguments
if debug {
if x == nil || x.typ == nil || y == nil || y.typ == nil {
panic("internal error: empty or top union term")
panic("empty or top union term")
}
}
if !x.disjoint(y) {

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@ -259,6 +259,6 @@ func def(obj Object) {
}
}
if scope.Insert(obj) != nil {
panic("internal error: double declaration")
panic("double declaration of predeclared identifier")
}
}