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https://github.com/letic/terraform-provider-google.git
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961c878e0d
Switch to using Go modules. This migrates our vendor.json to use Go 1.11's modules system, and replaces the vendor folder with the output of go mod vendor. The vendored code should remain basically the same; I believe some tree shaking of packages and support scripts/licenses/READMEs/etc. happened. This also fixes Travis and our Makefile to no longer use govendor.
50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
// Copyright 2017, The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE.md file.
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// Package function identifies function types.
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package function
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import "reflect"
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type funcType int
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const (
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_ funcType = iota
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ttbFunc // func(T, T) bool
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tibFunc // func(T, I) bool
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trFunc // func(T) R
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Equal = ttbFunc // func(T, T) bool
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EqualAssignable = tibFunc // func(T, I) bool; encapsulates func(T, T) bool
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Transformer = trFunc // func(T) R
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ValueFilter = ttbFunc // func(T, T) bool
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Less = ttbFunc // func(T, T) bool
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)
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var boolType = reflect.TypeOf(true)
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// IsType reports whether the reflect.Type is of the specified function type.
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func IsType(t reflect.Type, ft funcType) bool {
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if t == nil || t.Kind() != reflect.Func || t.IsVariadic() {
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return false
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}
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ni, no := t.NumIn(), t.NumOut()
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switch ft {
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case ttbFunc: // func(T, T) bool
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if ni == 2 && no == 1 && t.In(0) == t.In(1) && t.Out(0) == boolType {
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return true
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}
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case tibFunc: // func(T, I) bool
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if ni == 2 && no == 1 && t.In(0).AssignableTo(t.In(1)) && t.Out(0) == boolType {
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return true
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}
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case trFunc: // func(T) R
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if ni == 1 && no == 1 {
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return true
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}
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}
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return false
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}
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