mirror of https://github.com/pulumi/pulumi.git
77 lines
2.4 KiB
Go
77 lines
2.4 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 model
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import (
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"sort"
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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/v3/codegen/hcl2/syntax"
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"github.com/pulumi/pulumi/sdk/v3/go/common/slice"
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"github.com/pulumi/pulumi/sdk/v3/go/common/util/contract"
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)
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func syntaxOrNone(node hclsyntax.Node) hclsyntax.Node {
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if node == nil {
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return syntax.None
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}
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return node
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}
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// SourceOrderLess returns true if the first range precedes the second when ordered by source position. Positions are
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// ordered first by filename, then by byte offset.
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func SourceOrderLess(a, b hcl.Range) bool {
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return a.Filename < b.Filename || a.Start.Byte < b.Start.Byte
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}
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// SourceOrderBody sorts the contents of an HCL2 body in source order.
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func SourceOrderBody(body *hclsyntax.Body) []hclsyntax.Node {
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items := slice.Prealloc[hclsyntax.Node](len(body.Attributes) + len(body.Blocks))
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for _, attr := range body.Attributes {
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items = append(items, attr)
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}
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for _, block := range body.Blocks {
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items = append(items, block)
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}
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sort.Slice(items, func(i, j int) bool {
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return SourceOrderLess(items[i].Range(), items[j].Range())
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})
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return items
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}
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func VariableReference(v *Variable) *ScopeTraversalExpression {
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x := &ScopeTraversalExpression{
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RootName: v.Name,
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Traversal: hcl.Traversal{hcl.TraverseRoot{Name: v.Name}},
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Parts: []Traversable{v},
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}
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diags := x.Typecheck(false)
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contract.Assertf(len(diags) == 0, "error typechecking variable reference: %v", diags)
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return x
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}
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func ConstantReference(c *Constant) *ScopeTraversalExpression {
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x := &ScopeTraversalExpression{
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RootName: c.Name,
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Traversal: hcl.Traversal{hcl.TraverseRoot{Name: c.Name}},
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Parts: []Traversable{c},
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}
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diags := x.Typecheck(false)
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contract.Assertf(len(diags) == 0, "error typechecking constant reference: %v", diags)
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return x
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}
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