255620ea1e
If we are generating code into an async context (e.g. an async main), await calls to invoke rather than leaving them as promises. This results in more idiomatic code withing such contexts.
114 lines
3.3 KiB
Go
114 lines
3.3 KiB
Go
// Copyright 2016-2020, Pulumi Corporation.
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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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// http://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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package hcl2
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import (
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"github.com/hashicorp/hcl/v2"
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"github.com/hashicorp/hcl/v2/hclsyntax"
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"github.com/pulumi/pulumi/pkg/v2/codegen/hcl2/model"
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"github.com/zclconf/go-cty/cty"
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)
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const Invoke = "invoke"
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func getInvokeToken(call *hclsyntax.FunctionCallExpr) (string, hcl.Range, bool) {
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if call.Name != Invoke || len(call.Args) < 1 {
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return "", hcl.Range{}, false
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}
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template, ok := call.Args[0].(*hclsyntax.TemplateExpr)
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if !ok || len(template.Parts) != 1 {
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return "", hcl.Range{}, false
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}
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literal, ok := template.Parts[0].(*hclsyntax.LiteralValueExpr)
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if !ok {
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return "", hcl.Range{}, false
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}
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if literal.Val.Type() != cty.String {
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return "", hcl.Range{}, false
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}
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return literal.Val.AsString(), call.Args[0].Range(), true
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}
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func (b *binder) bindInvokeSignature(args []model.Expression) (model.StaticFunctionSignature, hcl.Diagnostics) {
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signature := model.StaticFunctionSignature{
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Parameters: []model.Parameter{
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{
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Name: "token",
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Type: model.StringType,
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},
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{
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Name: "args",
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Type: model.NewOptionalType(model.DynamicType),
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},
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{
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Name: "provider",
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Type: model.NewOptionalType(model.StringType),
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},
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},
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ReturnType: model.DynamicType,
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}
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if len(args) < 1 {
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return signature, nil
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}
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template, ok := args[0].(*model.TemplateExpression)
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if !ok || len(template.Parts) != 1 {
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return signature, hcl.Diagnostics{tokenMustBeStringLiteral(args[0])}
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}
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lit, ok := template.Parts[0].(*model.LiteralValueExpression)
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if !ok || lit.Type() != model.StringType {
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return signature, hcl.Diagnostics{tokenMustBeStringLiteral(args[0])}
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}
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token, tokenRange := lit.Value.AsString(), args[0].SyntaxNode().Range()
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pkg, _, _, diagnostics := DecomposeToken(token, tokenRange)
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if diagnostics.HasErrors() {
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return signature, diagnostics
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}
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pkgSchema, ok := b.options.packageCache.entries[pkg]
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if !ok {
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return signature, hcl.Diagnostics{unknownPackage(pkg, tokenRange)}
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}
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fn, ok := pkgSchema.functions[token]
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if !ok {
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canon := canonicalizeToken(token, pkgSchema.schema)
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if fn, ok = pkgSchema.functions[canon]; ok {
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token, lit.Value = canon, cty.StringVal(canon)
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}
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}
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if !ok {
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return signature, hcl.Diagnostics{unknownFunction(token, tokenRange)}
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}
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// Create args and result types for the schema.
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if fn.Inputs == nil {
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signature.Parameters[1].Type = model.NewOptionalType(model.NewObjectType(map[string]model.Type{}))
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} else {
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signature.Parameters[1].Type = b.schemaTypeToType(fn.Inputs)
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}
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if fn.Outputs == nil {
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signature.ReturnType = model.NewObjectType(map[string]model.Type{})
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} else {
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signature.ReturnType = b.schemaTypeToType(fn.Outputs)
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}
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signature.ReturnType = model.NewPromiseType(signature.ReturnType)
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return signature, nil
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}
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