error.go

Documentation: k8s.io/kubernetes/test/instrumentation

     1  /*
     2  Copyright 2019 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package main
    18  
    19  import (
    20  	"fmt"
    21  	"go/ast"
    22  	"go/token"
    23  )
    24  
    25  const (
    26  	errNotDirectCall                = "Opts for STABLE metric was not directly passed to new metric function"
    27  	errPositionalArguments          = "Positional arguments are not supported"
    28  	errStabilityLevel               = "StabilityLevel should be passed STABLE, BETA, ALPHA or removed"
    29  	errInvalidNewMetricCall         = "Invalid new metric call, please ensure code compiles"
    30  	errNonStringAttribute           = "Non string attribute is not supported"
    31  	errBadVariableAttribute         = "Metric attribute was not correctly set. Please use only global consts in same file"
    32  	errBadImportedVariableAttribute = "Metric attribute was not correctly set. Please use only global consts in correctly imported same file"
    33  	errFieldNotSupported            = "Field %s is not supported"
    34  	errBuckets                      = "Buckets should be set to list of floats, result from function call of prometheus.LinearBuckets or prometheus.ExponentialBuckets"
    35  	errObjectives                   = "Objectives should be set to map of floats to floats"
    36  	errDecodeUint32                 = "Should decode to uint32"
    37  	errDecodeInt64                  = "Should decode to int64"
    38  
    39  	errLabels       = "Labels were not set to list of strings"
    40  	errImport       = `Importing using "." is not supported`
    41  	errExprNotIdent = "expr selector does not refer to type ast.Ident, is type %s"
    42  
    43  	errorDecodingString            = "can't decode string"
    44  	errorDecodingLabels            = "can't decode labels"
    45  	errorDecodingConstLabels       = "can't decode const labels"
    46  	errorDecodingStabilityLevel    = "can't decode stability level"
    47  	errorFindingVariableForBuckets = "couldn't find variable for bucket"
    48  	errorFindingVariableForLabels  = "couldn't find variable for labels"
    49  )
    50  
    51  type decodeError struct {
    52  	msg string
    53  	pos token.Pos
    54  }
    55  
    56  func newDecodeErrorf(node ast.Node, format string, a ...interface{}) *decodeError {
    57  	return &decodeError{
    58  		msg: fmt.Sprintf(format, a...),
    59  		pos: node.Pos(),
    60  	}
    61  }
    62  
    63  var _ error = (*decodeError)(nil)
    64  
    65  func (e decodeError) Error() string {
    66  	return e.msg
    67  }
    68  
    69  func (e decodeError) errorWithFileInformation(fileset *token.FileSet) error {
    70  	position := fileset.Position(e.pos)
    71  	return fmt.Errorf("%s:%d:%d: %s", position.Filename, position.Line, position.Column, e.msg)
    72  }
    73
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