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author | OpenShift Merge Robot <openshift-merge-robot@users.noreply.github.com> | 2019-11-13 20:19:54 +0100 |
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committer | GitHub <noreply@github.com> | 2019-11-13 20:19:54 +0100 |
commit | 225f22b9d5dfd0d1582a56530142fe8ffb960a91 (patch) | |
tree | 4dcc994bb1e48602e5be5f42b7599abdc0cc7937 /vendor/github.com/prometheus/procfs/internal/util/valueparser.go | |
parent | 15220af08ce2346686e54851a6d498ec573e950c (diff) | |
parent | 6003033adae775f1d725b05231a246a4462ae669 (diff) | |
download | podman-225f22b9d5dfd0d1582a56530142fe8ffb960a91.tar.gz podman-225f22b9d5dfd0d1582a56530142fe8ffb960a91.tar.bz2 podman-225f22b9d5dfd0d1582a56530142fe8ffb960a91.zip |
Merge pull request #4506 from TomSweeneyRedHat/dev/tsweeney/bump_buildah1.11.5
Bump to Buildah v1.11.5
Diffstat (limited to 'vendor/github.com/prometheus/procfs/internal/util/valueparser.go')
-rw-r--r-- | vendor/github.com/prometheus/procfs/internal/util/valueparser.go | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/vendor/github.com/prometheus/procfs/internal/util/valueparser.go b/vendor/github.com/prometheus/procfs/internal/util/valueparser.go new file mode 100644 index 000000000..ac93cb42d --- /dev/null +++ b/vendor/github.com/prometheus/procfs/internal/util/valueparser.go @@ -0,0 +1,77 @@ +// Copyright 2019 The Prometheus Authors +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package util + +import ( + "strconv" +) + +// TODO(mdlayher): util packages are an anti-pattern and this should be moved +// somewhere else that is more focused in the future. + +// A ValueParser enables parsing a single string into a variety of data types +// in a concise and safe way. The Err method must be invoked after invoking +// any other methods to ensure a value was successfully parsed. +type ValueParser struct { + v string + err error +} + +// NewValueParser creates a ValueParser using the input string. +func NewValueParser(v string) *ValueParser { + return &ValueParser{v: v} +} + +// PInt64 interprets the underlying value as an int64 and returns a pointer to +// that value. +func (vp *ValueParser) PInt64() *int64 { + if vp.err != nil { + return nil + } + + // A base value of zero makes ParseInt infer the correct base using the + // string's prefix, if any. + const base = 0 + v, err := strconv.ParseInt(vp.v, base, 64) + if err != nil { + vp.err = err + return nil + } + + return &v +} + +// PUInt64 interprets the underlying value as an uint64 and returns a pointer to +// that value. +func (vp *ValueParser) PUInt64() *uint64 { + if vp.err != nil { + return nil + } + + // A base value of zero makes ParseInt infer the correct base using the + // string's prefix, if any. + const base = 0 + v, err := strconv.ParseUint(vp.v, base, 64) + if err != nil { + vp.err = err + return nil + } + + return &v +} + +// Err returns the last error, if any, encountered by the ValueParser. +func (vp *ValueParser) Err() error { + return vp.err +} |