/
binder_resource.go
332 lines (294 loc) 路 10.3 KB
/
binder_resource.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.
//nolint: goconst
package hcl2
import (
"github.com/hashicorp/hcl/v2"
"github.com/hashicorp/hcl/v2/hclsyntax"
"github.com/pulumi/pulumi/pkg/v2/codegen"
"github.com/pulumi/pulumi/pkg/v2/codegen/hcl2/model"
"github.com/pulumi/pulumi/pkg/v2/codegen/hcl2/syntax"
"github.com/pulumi/pulumi/pkg/v2/codegen/schema"
"github.com/pulumi/pulumi/sdk/v2/go/common/util/contract"
"github.com/zclconf/go-cty/cty"
)
func getResourceToken(node *Resource) (string, hcl.Range) {
return node.syntax.Labels[1], node.syntax.LabelRanges[1]
}
func (b *binder) bindResource(node *Resource) hcl.Diagnostics {
var diagnostics hcl.Diagnostics
typeDiags := b.bindResourceTypes(node)
diagnostics = append(diagnostics, typeDiags...)
bodyDiags := b.bindResourceBody(node)
diagnostics = append(diagnostics, bodyDiags...)
return diagnostics
}
// bindResourceTypes binds the input and output types for a resource.
func (b *binder) bindResourceTypes(node *Resource) hcl.Diagnostics {
// Set the input and output types to dynamic by default.
node.InputType, node.OutputType = model.DynamicType, model.DynamicType
// Find the resource's schema.
token, tokenRange := getResourceToken(node)
pkg, module, name, diagnostics := DecomposeToken(token, tokenRange)
if diagnostics.HasErrors() {
return diagnostics
}
isProvider := false
if pkg == "pulumi" && module == "providers" {
pkg, isProvider = name, true
}
pkgSchema, ok := b.options.packageCache.entries[pkg]
if !ok {
return hcl.Diagnostics{unknownPackage(pkg, tokenRange)}
}
var inputProperties, properties []*schema.Property
if !isProvider {
res, ok := pkgSchema.resources[token]
if !ok {
canon := canonicalizeToken(token, pkgSchema.schema)
if res, ok = pkgSchema.resources[canon]; ok {
token = canon
}
}
if !ok {
return hcl.Diagnostics{unknownResourceType(token, tokenRange)}
}
node.Schema = res
inputProperties, properties = res.InputProperties, res.Properties
} else {
inputProperties, properties = pkgSchema.schema.Config, pkgSchema.schema.Config
}
node.Token = token
// Create input and output types for the schema.
inputType := model.InputType(b.schemaTypeToType(&schema.ObjectType{Properties: inputProperties}))
outputProperties := map[string]model.Type{
"id": model.NewOutputType(model.StringType),
"urn": model.NewOutputType(model.StringType),
}
for _, prop := range properties {
outputProperties[prop.Name] = model.NewOutputType(b.schemaTypeToType(prop.Type))
}
outputType := model.NewObjectType(outputProperties, &schema.ObjectType{Properties: properties})
node.InputType, node.OutputType = inputType, outputType
return diagnostics
}
type resourceScopes struct {
root *model.Scope
withRange *model.Scope
resource *Resource
}
func newResourceScopes(root *model.Scope, resource *Resource, rangeKey, rangeValue model.Type) model.Scopes {
scopes := &resourceScopes{
root: root,
withRange: root,
resource: resource,
}
if rangeValue != nil {
properties := map[string]model.Type{
"value": rangeValue,
}
if rangeKey != nil {
properties["key"] = rangeKey
}
scopes.withRange = root.Push(syntax.None)
scopes.withRange.Define("range", &model.Variable{
Name: "range",
VariableType: model.NewObjectType(properties),
})
}
return scopes
}
func (s *resourceScopes) GetScopesForBlock(block *hclsyntax.Block) (model.Scopes, hcl.Diagnostics) {
if block.Type == "options" {
return &optionsScopes{root: s.root, resource: s.resource}, nil
}
return model.StaticScope(s.withRange), nil
}
func (s *resourceScopes) GetScopeForAttribute(attr *hclsyntax.Attribute) (*model.Scope, hcl.Diagnostics) {
return s.withRange, nil
}
type optionsScopes struct {
root *model.Scope
resource *Resource
}
func (s *optionsScopes) GetScopesForBlock(block *hclsyntax.Block) (model.Scopes, hcl.Diagnostics) {
return model.StaticScope(s.root), nil
}
func (s *optionsScopes) GetScopeForAttribute(attr *hclsyntax.Attribute) (*model.Scope, hcl.Diagnostics) {
if attr.Name == "ignoreChanges" {
obj, ok := model.ResolveOutputs(s.resource.InputType).(*model.ObjectType)
if !ok {
return nil, nil
}
scope := model.NewRootScope(syntax.None)
for k, t := range obj.Properties {
scope.Define(k, &ResourceProperty{
Path: hcl.Traversal{hcl.TraverseRoot{Name: k}},
PropertyType: t,
})
}
return scope, nil
}
return s.root, nil
}
// bindResourceBody binds the body of a resource.
func (b *binder) bindResourceBody(node *Resource) hcl.Diagnostics {
var diagnostics hcl.Diagnostics
// If the resource has a range option, we need to know the type of the collection being ranged over. Pre-bind the
// range expression now, but ignore the diagnostics.
node.VariableType = node.OutputType
var rangeKey, rangeValue model.Type
for _, block := range node.syntax.Body.Blocks {
if block.Type == "options" {
if rng, hasRange := block.Body.Attributes["range"]; hasRange {
expr, _ := model.BindExpression(rng.Expr, b.root, b.tokens, b.options.modelOptions()...)
typ := model.ResolveOutputs(expr.Type())
resourceVar := &model.Variable{
Name: "r",
VariableType: node.VariableType,
}
switch {
case model.InputType(model.BoolType).ConversionFrom(typ) == model.SafeConversion:
condExpr := &model.ConditionalExpression{
Condition: expr,
TrueResult: model.VariableReference(resourceVar),
FalseResult: model.ConstantReference(&model.Constant{
Name: "null",
ConstantValue: cty.NullVal(cty.DynamicPseudoType),
}),
}
diags := condExpr.Typecheck(false)
contract.Assert(len(diags) == 0)
node.VariableType = condExpr.Type()
case model.InputType(model.NumberType).ConversionFrom(typ) != model.NoConversion:
rangeArgs := []model.Expression{expr}
rangeSig, _ := pulumiBuiltins["range"].GetSignature(rangeArgs)
rangeExpr := &model.ForExpression{
ValueVariable: &model.Variable{
Name: "_",
VariableType: model.NumberType,
},
Collection: &model.FunctionCallExpression{
Name: "range",
Signature: rangeSig,
Args: rangeArgs,
},
Value: model.VariableReference(resourceVar),
}
diags := rangeExpr.Typecheck(false)
contract.Assert(len(diags) == 0)
node.VariableType = rangeExpr.Type()
default:
rk, rv, diags := model.GetCollectionTypes(typ, rng.Range())
rangeKey, rangeValue, diagnostics = rk, rv, append(diagnostics, diags...)
iterationExpr := &model.ForExpression{
ValueVariable: &model.Variable{
Name: "_",
VariableType: rangeValue,
},
Collection: expr,
Value: model.VariableReference(resourceVar),
}
diags = iterationExpr.Typecheck(false)
contract.Ignore(diags) // Any relevant diagnostics were reported by GetCollectionTypes.
node.VariableType = iterationExpr.Type()
}
}
}
}
// Bind the resource's body.
scopes := newResourceScopes(b.root, node, rangeKey, rangeValue)
block, blockDiags := model.BindBlock(node.syntax, scopes, b.tokens, b.options.modelOptions()...)
diagnostics = append(diagnostics, blockDiags...)
var options *model.Block
for _, item := range block.Body.Items {
switch item := item.(type) {
case *model.Attribute:
node.Inputs = append(node.Inputs, item)
case *model.Block:
switch item.Type {
case "options":
if options != nil {
diagnostics = append(diagnostics, duplicateBlock(item.Type, item.Syntax.TypeRange))
} else {
options = item
}
default:
diagnostics = append(diagnostics, unsupportedBlock(item.Type, item.Syntax.TypeRange))
}
}
}
// Typecheck the attributes.
if objectType, ok := node.InputType.(*model.ObjectType); ok {
attrNames := codegen.StringSet{}
for _, attr := range node.Inputs {
attrNames.Add(attr.Name)
if typ, ok := objectType.Properties[attr.Name]; ok {
if !typ.ConversionFrom(attr.Value.Type()).Exists() {
diagnostics = append(diagnostics, model.ExprNotConvertible(typ, attr.Value))
}
} else {
diagnostics = append(diagnostics, unsupportedAttribute(attr.Name, attr.Syntax.NameRange))
}
}
for _, k := range codegen.SortedKeys(objectType.Properties) {
if !model.IsOptionalType(objectType.Properties[k]) && !attrNames.Has(k) {
diagnostics = append(diagnostics,
missingRequiredAttribute(k, node.Definition.Body.Syntax.MissingItemRange()))
}
}
}
// Typecheck the options block.
if options != nil {
resourceOptions := &ResourceOptions{}
for _, item := range options.Body.Items {
switch item := item.(type) {
case *model.Attribute:
var t model.Type
switch item.Name {
case "range":
t = model.NewUnionType(model.BoolType, model.NumberType, model.NewListType(model.DynamicType),
model.NewMapType(model.DynamicType))
resourceOptions.Range = item.Value
case "parent":
t = model.DynamicType
resourceOptions.Parent = item.Value
case "provider":
t = model.DynamicType
resourceOptions.Provider = item.Value
case "dependsOn":
t = model.NewListType(model.DynamicType)
resourceOptions.DependsOn = item.Value
case "protect":
t = model.BoolType
resourceOptions.Protect = item.Value
case "ignoreChanges":
t = model.NewListType(ResourcePropertyType)
resourceOptions.IgnoreChanges = item.Value
default:
diagnostics = append(diagnostics, unsupportedAttribute(item.Name, item.Syntax.NameRange))
continue
}
if model.InputType(t).ConversionFrom(item.Value.Type()) == model.NoConversion {
diagnostics = append(diagnostics, model.ExprNotConvertible(model.InputType(t), item.Value))
}
case *model.Block:
diagnostics = append(diagnostics, unsupportedBlock(item.Type, item.Syntax.TypeRange))
}
}
node.Options = resourceOptions
}
node.Definition = block
return diagnostics
}