68 lines
1.5 KiB
Go
68 lines
1.5 KiB
Go
package gen
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import (
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"fmt"
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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/model"
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"github.com/pulumi/pulumi/pkg/v3/codegen/hcl2/syntax"
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)
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type ternaryTemp struct {
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Name string
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Value *model.ConditionalExpression
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}
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func (tt *ternaryTemp) Type() model.Type {
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return tt.Value.Type()
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}
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func (tt *ternaryTemp) Traverse(traverser hcl.Traverser) (model.Traversable, hcl.Diagnostics) {
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return tt.Type().Traverse(traverser)
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}
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func (tt *ternaryTemp) SyntaxNode() hclsyntax.Node {
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return syntax.None
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}
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type tempSpiller struct {
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temps []*ternaryTemp
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count int
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}
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func (ta *tempSpiller) spillExpression(x model.Expression) (model.Expression, hcl.Diagnostics) {
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var temp *ternaryTemp
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switch x := x.(type) {
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case *model.ConditionalExpression:
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x.Condition, _ = ta.spillExpression(x.Condition)
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x.TrueResult, _ = ta.spillExpression(x.TrueResult)
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x.FalseResult, _ = ta.spillExpression(x.FalseResult)
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temp = &ternaryTemp{
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Name: fmt.Sprintf("tmp%d", ta.count),
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Value: x,
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}
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ta.temps = append(ta.temps, temp)
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ta.count++
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default:
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return x, nil
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}
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return &model.ScopeTraversalExpression{
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RootName: temp.Name,
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Traversal: hcl.Traversal{hcl.TraverseRoot{Name: ""}},
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Parts: []model.Traversable{temp},
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}, nil
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}
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func (g *generator) rewriteTernaries(
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x model.Expression,
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spiller *tempSpiller,
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) (model.Expression, []*ternaryTemp, hcl.Diagnostics) {
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spiller.temps = nil
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x, diags := model.VisitExpression(x, spiller.spillExpression, nil)
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return x, spiller.temps, diags
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}
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