pulumi/pkg/codegen/pcl/intrinsics.go

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// Copyright 2016-2020, Pulumi Corporation.
//
// 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 pcl
import (
"github.com/pulumi/pulumi/pkg/v3/codegen/hcl2/model"
"github.com/pulumi/pulumi/sdk/v3/go/common/util/contract"
)
const (
// IntrinsicApply is the name of the apply intrinsic.
IntrinsicApply = "__apply"
// IntrinsicConvert is the name of the conversion intrinsic.
IntrinsicConvert = "__convert"
)
func isOutput(t model.Type) bool {
switch t := t.(type) {
case *model.OutputType:
return true
case *model.UnionType:
for _, t := range t.ElementTypes {
if _, isOutput := t.(*model.OutputType); isOutput {
return true
}
}
}
return false
}
// NewApplyCall returns a new expression that represents a call to IntrinsicApply.
func NewApplyCall(args []model.Expression, then *model.AnonymousFunctionExpression) *model.FunctionCallExpression {
signature := model.StaticFunctionSignature{
Parameters: make([]model.Parameter, len(args)+1),
}
returnsOutput := false
exprs := make([]model.Expression, len(args)+1)
for i, a := range args {
exprs[i] = a
if isOutput := isOutput(a.Type()); isOutput {
returnsOutput = true
}
signature.Parameters[i] = model.Parameter{
Name: then.Signature.Parameters[i].Name,
Type: a.Type(),
}
}
exprs[len(exprs)-1] = then
signature.Parameters[len(signature.Parameters)-1] = model.Parameter{
Name: "then",
Type: then.Type(),
}
if returnsOutput {
signature.ReturnType = model.NewOutputType(then.Signature.ReturnType)
} else {
signature.ReturnType = model.NewPromiseType(then.Signature.ReturnType)
}
return &model.FunctionCallExpression{
Name: IntrinsicApply,
Signature: signature,
Args: exprs,
}
}
// ParseApplyCall extracts the apply arguments and the continuation from a call to the apply intrinsic.
func ParseApplyCall(c *model.FunctionCallExpression) (applyArgs []model.Expression,
all: Reformat with gofumpt Per team discussion, switching to gofumpt. [gofumpt][1] is an alternative, stricter alternative to gofmt. It addresses other stylistic concerns that gofmt doesn't yet cover. [1]: https://github.com/mvdan/gofumpt See the full list of [Added rules][2], but it includes: - Dropping empty lines around function bodies - Dropping unnecessary variable grouping when there's only one variable - Ensuring an empty line between multi-line functions - simplification (`-s` in gofmt) is always enabled - Ensuring multi-line function signatures end with `) {` on a separate line. [2]: https://github.com/mvdan/gofumpt#Added-rules gofumpt is stricter, but there's no lock-in. All gofumpt output is valid gofmt output, so if we decide we don't like it, it's easy to switch back without any code changes. gofumpt support is built into the tooling we use for development so this won't change development workflows. - golangci-lint includes a gofumpt check (enabled in this PR) - gopls, the LSP for Go, includes a gofumpt option (see [installation instrutions][3]) [3]: https://github.com/mvdan/gofumpt#installation This change was generated by running: ```bash gofumpt -w $(rg --files -g '*.go' | rg -v testdata | rg -v compilation_error) ``` The following files were manually tweaked afterwards: - pkg/cmd/pulumi/stack_change_secrets_provider.go: one of the lines overflowed and had comments in an inconvenient place - pkg/cmd/pulumi/destroy.go: `var x T = y` where `T` wasn't necessary - pkg/cmd/pulumi/policy_new.go: long line because of error message - pkg/backend/snapshot_test.go: long line trying to assign three variables in the same assignment I have included mention of gofumpt in the CONTRIBUTING.md.
2023-03-03 16:36:39 +00:00
then *model.AnonymousFunctionExpression,
) {
contract.Requiref(c.Name == IntrinsicApply, "c", "must be a call to %q, got %q", IntrinsicApply, c.Name)
return c.Args[:len(c.Args)-1], c.Args[len(c.Args)-1].(*model.AnonymousFunctionExpression)
}
// NewConvertCall returns a new expression that represents a call to IntrinsicConvert.
func NewConvertCall(from model.Expression, to model.Type) *model.FunctionCallExpression {
return &model.FunctionCallExpression{
Name: IntrinsicConvert,
Signature: model.StaticFunctionSignature{
Parameters: []model.Parameter{{
Name: "from",
Type: from.Type(),
}},
ReturnType: to,
},
Args: []model.Expression{from},
}
}
// ParseConvertCall extracts the value being converted and the type it is being converted to from a call to the convert
// intrinsic.
func ParseConvertCall(c *model.FunctionCallExpression) (model.Expression, model.Type) {
contract.Requiref(c.Name == IntrinsicConvert, "c", "must be a call to %q, got %q", IntrinsicConvert, c.Name)
return c.Args[0], c.Signature.ReturnType
}