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chore(perf): optimise tm_alltrue() and tm_anytrue().
Signed-off-by: Tiago Natel <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,145 @@ | ||
| // Copyright 2023 Terramate GmbH | ||
| // SPDX-License-Identifier: MPL-2.0 | ||
|
|
||
| package stdlib | ||
|
|
||
| import ( | ||
| "github.com/hashicorp/hcl/v2/ext/customdecode" | ||
| "github.com/hashicorp/hcl/v2/hclsyntax" | ||
| "github.com/terramate-io/terramate/errors" | ||
| "github.com/terramate-io/terramate/hcl/eval" | ||
| "github.com/zclconf/go-cty/cty" | ||
| "github.com/zclconf/go-cty/cty/function" | ||
| ) | ||
|
|
||
| // AllTrueFunc implements the `tm_alltrue()` function. | ||
| func AllTrueFunc() function.Function { | ||
| return function.New(&function.Spec{ | ||
| Params: []function.Parameter{ | ||
| { | ||
| Name: "list", | ||
| Type: customdecode.ExpressionClosureType, | ||
| }, | ||
| }, | ||
| Type: function.StaticReturnType(cty.Bool), | ||
| Impl: func(args []cty.Value, retType cty.Type) (ret cty.Value, err error) { | ||
| argClosure := customdecode.ExpressionClosureFromVal(args[0]) | ||
| evalctx := eval.NewContextFrom(argClosure.EvalContext) | ||
| listExpression, ok := argClosure.Expression.(*hclsyntax.TupleConsExpr) | ||
| if !ok { | ||
| v, err := evalctx.Eval(argClosure.Expression) | ||
| if err != nil { | ||
| return cty.False, err | ||
| } | ||
| if !v.Type().IsListType() && !v.Type().IsTupleType() { | ||
| return cty.False, errors.E(`Invalid value for "list" parameter: %s`, v.Type().FriendlyName()) | ||
| } | ||
| result := true | ||
| i := 0 | ||
| for it := v.ElementIterator(); it.Next(); { | ||
| _, v := it.Element() | ||
| if !v.IsKnown() { | ||
| return cty.UnknownVal(cty.Bool), nil | ||
| } | ||
| if v.IsNull() { | ||
| return cty.False, nil | ||
| } | ||
| if !v.Type().Equals(cty.Bool) { | ||
| return cty.False, errors.E(`Invalid value for "list" parameter: element %d: bool required`, i+1) | ||
| } | ||
| result = result && v.True() | ||
| if !result { | ||
| return cty.False, nil | ||
| } | ||
| i++ | ||
| } | ||
| return cty.True, nil | ||
| } | ||
|
|
||
| result := true | ||
| for i, expr := range listExpression.Exprs { | ||
| v, err := evalctx.Eval(expr) | ||
| if err != nil { | ||
| return cty.False, err | ||
| } | ||
| if v.IsNull() { | ||
| return cty.False, nil | ||
| } | ||
| if !v.Type().Equals(cty.Bool) { | ||
| return cty.False, errors.E(`Invalid value for "list" parameter: element %d: bool required`, i+1) | ||
| } | ||
| result = result && v.True() | ||
| if !result { | ||
| return cty.False, nil | ||
| } | ||
| } | ||
| return cty.True, nil | ||
| }, | ||
| }) | ||
| } | ||
|
|
||
| // AnyTrueFunc implements the `tm_anytrue()` function. | ||
| func AnyTrueFunc() function.Function { | ||
| return function.New(&function.Spec{ | ||
| Params: []function.Parameter{ | ||
| { | ||
| Name: "list", | ||
| Type: customdecode.ExpressionClosureType, | ||
| }, | ||
| }, | ||
| Type: function.StaticReturnType(cty.Bool), | ||
| Impl: func(args []cty.Value, retType cty.Type) (ret cty.Value, err error) { | ||
| argClosure := customdecode.ExpressionClosureFromVal(args[0]) | ||
| evalctx := eval.NewContextFrom(argClosure.EvalContext) | ||
| listExpression, ok := argClosure.Expression.(*hclsyntax.TupleConsExpr) | ||
| if !ok { | ||
| v, err := evalctx.Eval(argClosure.Expression) | ||
| if err != nil { | ||
| return cty.False, err | ||
| } | ||
| if !v.Type().IsListType() && !v.Type().IsTupleType() { | ||
| return cty.False, errors.E(`Invalid value for "list" parameter: %s`, v.Type().FriendlyName()) | ||
| } | ||
| result := false | ||
| i := 0 | ||
| for it := v.ElementIterator(); it.Next(); { | ||
| _, v := it.Element() | ||
| if !v.IsKnown() { | ||
| continue | ||
| } | ||
| if v.IsNull() { | ||
| continue | ||
| } | ||
| if !v.Type().Equals(cty.Bool) { | ||
| return cty.False, errors.E(`Invalid value for "list" parameter: element %d: bool required`, i+1) | ||
| } | ||
| result = result || v.True() | ||
| if result { | ||
| return cty.True, nil | ||
| } | ||
| i++ | ||
| } | ||
| return cty.False, nil | ||
| } | ||
|
|
||
| result := false | ||
| for i, expr := range listExpression.Exprs { | ||
| v, err := evalctx.Eval(expr) | ||
| if err != nil { | ||
| return cty.False, err | ||
| } | ||
| if v.IsNull() { | ||
| continue | ||
| } | ||
| if !v.Type().Equals(cty.Bool) { | ||
| return cty.False, errors.E(`Invalid value for "list" parameter: element %d: bool required`, i+1) | ||
| } | ||
| result = result || v.True() | ||
| if result { | ||
| return cty.True, nil | ||
| } | ||
| } | ||
| return cty.False, nil | ||
| }, | ||
| }) | ||
| } |
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