235a7d8f80
Previously, goose would ignore declarations in the //+build gooseinject files that were not injectors. This meant that if you wanted to write application-specific providers, you would need to place them in a separate file, away from the goose injectors. This means that a typical application would have three handwritten files: one for the abstract business logic, one for the platform-specific providers, one for the platform-specific injector declarations. This change allows the two platform-specific files to be merged into one: the //+build gooseinject file. goose will now copy these declarations out to goose_gen.go. This requires a bit of hackery, since the generated file may have different identifiers for the imported packages, so goose will do some light AST rewriting to address these cases. (Historical note: this was the first change made externally, so also in here are the copyright headers and other housekeeping changes.) Reviewed-by: Tuo Shan <shantuo@google.com> Reviewed-by: kokoro <noreply+kokoro@google.com>
59 lines
1.4 KiB
Go
59 lines
1.4 KiB
Go
// Copyright 2018 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//+build gooseinject
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// This file is specifically designed to cause issues with copying the
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// AST, particularly with the identifier "context".
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package main
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import (
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stdcontext "context"
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"fmt"
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"os"
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"reflect"
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"github.com/google/go-cloud/goose"
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)
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type context struct{}
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func main() {
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if _, ok := reflect.TypeOf(context{}).MethodByName("Provide"); !ok {
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fmt.Println("ERROR: context.Provide renamed")
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os.Exit(1)
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}
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c, err := inject(stdcontext.Background(), struct{}{})
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if err != nil {
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fmt.Println("ERROR:", err)
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os.Exit(1)
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}
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fmt.Println(c)
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}
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func Provide(context2 stdcontext.Context) (context, error) {
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var context3 = stdcontext.Background()
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_ = context2
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_ = context3
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return context{}, nil
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}
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func inject(context stdcontext.Context, err struct{}) (context, error) {
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panic(goose.Use(Provide))
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}
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func (context) Provide() {
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}
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