7b1d6ec1ac
These changes support arbitrary combinations of input + plain types within a schema. Handling plain types at the property level was not sufficient to support such combinations. Reifying these types required updating quite a bit of code. This is likely to have caused some temporary complications, but should eventually lead to substantial simplification in the SDK and program code generators. With the new design, input and optional types are explicit in the schema type system. Optionals will only appear at the outermost level of a type (i.e. Input<Optional<>>, Array<Optional<>>, etc. will not occur). In addition to explicit input types, each object type now has a "plain" shape and an "input" shape. The former uses only plain types; the latter uses input shapes wherever a plain type is not specified. Plain types are indicated in the schema by setting the "plain" property of a type spec to true.
109 lines
3.3 KiB
Go
109 lines
3.3 KiB
Go
// 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 hcl2
|
|
|
|
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,
|
|
then *model.AnonymousFunctionExpression) {
|
|
|
|
contract.Assert(c.Name == IntrinsicApply)
|
|
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.Assert(c.Name == IntrinsicConvert)
|
|
return c.Args[0], c.Signature.ReturnType
|
|
}
|