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-rw-r--r--src/pkg/runtime/error.go138
1 files changed, 0 insertions, 138 deletions
diff --git a/src/pkg/runtime/error.go b/src/pkg/runtime/error.go
deleted file mode 100644
index 6c37f888f..000000000
--- a/src/pkg/runtime/error.go
+++ /dev/null
@@ -1,138 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package runtime
-
-// The Error interface identifies a run time error.
-type Error interface {
- String() string
-
- // RuntimeError is a no-op function but
- // serves to distinguish types that are runtime
- // errors from ordinary os.Errors: a type is a
- // runtime error if it has a RuntimeError method.
- RuntimeError()
-}
-
-// A TypeAssertionError explains a failed type assertion.
-type TypeAssertionError struct {
- interfaceType Type // interface had this type
- concreteType Type // concrete value had this type
- assertedType Type // asserted type
- interfaceString string
- concreteString string
- assertedString string
- missingMethod string // one method needed by Interface, missing from Concrete
-}
-
-func (*TypeAssertionError) RuntimeError() {}
-
-func (e *TypeAssertionError) String() string {
- inter := e.interfaceString
- if inter == "" {
- inter = "interface"
- }
- if e.concreteType == nil {
- return "interface conversion: " + inter + " is nil, not " + e.assertedString
- }
- if e.missingMethod == "" {
- return "interface conversion: " + inter + " is " + e.concreteString +
- ", not " + e.assertedString
- }
- return "interface conversion: " + e.concreteString + " is not " + e.assertedString +
- ": missing method " + e.missingMethod
-}
-
-// Concrete returns the type of the concrete value in the failed type assertion.
-// If the interface value was nil, Concrete returns nil.
-func (e *TypeAssertionError) Concrete() Type {
- return e.concreteType
-}
-
-// Asserted returns the type incorrectly asserted by the type assertion.
-func (e *TypeAssertionError) Asserted() Type {
- return e.assertedType
-}
-
-// If the type assertion is to an interface type, MissingMethod returns the
-// name of a method needed to satisfy that interface type but not implemented
-// by Concrete. If there are multiple such methods,
-// MissingMethod returns one; which one is unspecified.
-// If the type assertion is not to an interface type, MissingMethod returns an empty string.
-func (e *TypeAssertionError) MissingMethod() string {
- return e.missingMethod
-}
-
-// For calling from C.
-func newTypeAssertionError(pt1, pt2, pt3 *Type, ps1, ps2, ps3 *string, pmeth *string, ret *interface{}) {
- var t1, t2, t3 Type
- var s1, s2, s3, meth string
-
- if pt1 != nil {
- t1 = *pt1
- }
- if pt2 != nil {
- t2 = *pt2
- }
- if pt3 != nil {
- t3 = *pt3
- }
- if ps1 != nil {
- s1 = *ps1
- }
- if ps2 != nil {
- s2 = *ps2
- }
- if ps3 != nil {
- s3 = *ps3
- }
- if pmeth != nil {
- meth = *pmeth
- }
- *ret = &TypeAssertionError{t1, t2, t3, s1, s2, s3, meth}
-}
-
-// An errorString represents a runtime error described by a single string.
-type errorString string
-
-func (e errorString) RuntimeError() {}
-
-func (e errorString) String() string {
- return "runtime error: " + string(e)
-}
-
-// For calling from C.
-func newErrorString(s string, ret *interface{}) {
- *ret = errorString(s)
-}
-
-type stringer interface {
- String() string
-}
-
-func typestring(interface{}) string
-
-// For calling from C.
-// Prints an argument passed to panic.
-// There's room for arbitrary complexity here, but we keep it
-// simple and handle just a few important cases: int, string, and Stringer.
-func printany(i interface{}) {
- switch v := i.(type) {
- case nil:
- print("nil")
- case stringer:
- print(v.String())
- case int:
- print(v)
- case string:
- print(v)
- default:
- print("(", typestring(i), ") ", i)
- }
-}
-
-// called from generated code
-func panicwrap(pkg, typ, meth string) {
- panic("value method " + pkg + "." + typ + "." + meth + " called using nil *" + typ + " pointer")
-}