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// Copyright 2012 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.
// This file implements various error reporters.
package types
import (
"fmt"
"k8s.io/kubernetes/third_party/golang/go/ast"
"k8s.io/kubernetes/third_party/golang/go/token"
"strings"
)
func assert(p bool) {
if !p {
panic("assertion failed")
}
}
func unreachable() {
panic("unreachable")
}
func (check *Checker) qualifier(pkg *Package) string {
if pkg != check.pkg {
return pkg.path
}
return ""
}
func (check *Checker) sprintf(format string, args ...interface{}) string {
for i, arg := range args {
switch a := arg.(type) {
case nil:
arg = "<nil>"
case operand:
panic("internal error: should always pass *operand")
case *operand:
arg = operandString(a, check.qualifier)
case token.Pos:
arg = check.fset.Position(a).String()
case ast.Expr:
arg = ExprString(a)
case Object:
arg = ObjectString(a, check.qualifier)
case Type:
arg = TypeString(a, check.qualifier)
}
args[i] = arg
}
return fmt.Sprintf(format, args...)
}
func (check *Checker) trace(pos token.Pos, format string, args ...interface{}) {
fmt.Printf("%s:\t%s%s\n",
check.fset.Position(pos),
strings.Repeat(". ", check.indent),
check.sprintf(format, args...),
)
}
// dump is only needed for debugging
func (check *Checker) dump(format string, args ...interface{}) {
fmt.Println(check.sprintf(format, args...))
}
func (check *Checker) err(pos token.Pos, msg string, soft bool) {
err := Error{check.fset, pos, msg, soft}
if check.firstErr == nil {
check.firstErr = err
}
f := check.conf.Error
if f == nil {
panic(bailout{}) // report only first error
}
f(err)
}
func (check *Checker) error(pos token.Pos, msg string) {
check.err(pos, msg, false)
}
func (check *Checker) errorf(pos token.Pos, format string, args ...interface{}) {
check.err(pos, check.sprintf(format, args...), false)
}
func (check *Checker) softErrorf(pos token.Pos, format string, args ...interface{}) {
check.err(pos, check.sprintf(format, args...), true)
}
func (check *Checker) invalidAST(pos token.Pos, format string, args ...interface{}) {
check.errorf(pos, "invalid AST: "+format, args...)
}
func (check *Checker) invalidArg(pos token.Pos, format string, args ...interface{}) {
check.errorf(pos, "invalid argument: "+format, args...)
}
func (check *Checker) invalidOp(pos token.Pos, format string, args ...interface{}) {
check.errorf(pos, "invalid operation: "+format, args...)
}
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