Replace expressions engine (#133)

pkg/exprparser/interpreter.go

@@ -2,14 +2,14 @@ package exprparser
 
 import (
 	"encoding"
-	"encoding/json"
 	"fmt"
 	"math"
 	"reflect"
 	"strings"
 
+	eval "github.com/actions-oss/act-cli/internal/eval/v2"
+	exprparser "github.com/actions-oss/act-cli/internal/expr"
 	"github.com/actions-oss/act-cli/pkg/model"
-	"github.com/rhysd/actionlint"
 )
 
 type EvaluationEnvironment struct {
@@ -83,22 +83,109 @@ func NewInterpeter(env *EvaluationEnvironment, config Config) Interpreter {
 	}
 }
 
+func toRawObj(left reflect.Value) map[string]any {
+	res, _ := toRaw(left).(map[string]any)
+	return res
+}
+
+func toRaw(left reflect.Value) any {
+	if left.IsZero() {
+		return nil
+	}
+	switch left.Kind() {
+	case reflect.Pointer:
+		if left.IsNil() {
+			return nil
+		}
+		return toRaw(left.Elem())
+	case reflect.Map:
+		iter := left.MapRange()
+
+		m := map[string]any{}
+
+		for iter.Next() {
+			key := iter.Key()
+
+			if key.Kind() == reflect.String {
+				nv := toRaw(iter.Value())
+				if nv != nil {
+					m[key.String()] = nv
+				}
+			}
+		}
+		if len(m) == 0 {
+			return nil
+		}
+		return m
+	case reflect.Struct:
+		m := map[string]any{}
+
+		leftType := left.Type()
+		for i := 0; i < leftType.NumField(); i++ {
+			var name string
+			if jsonName := leftType.Field(i).Tag.Get("json"); jsonName != "" {
+				name, _, _ = strings.Cut(jsonName, ",")
+			}
+			if name == "" {
+				name = leftType.Field(i).Name
+			}
+			v := left.Field(i).Interface()
+			if t, ok := v.(encoding.TextMarshaler); ok {
+				text, _ := t.MarshalText()
+				if len(text) > 0 {
+					m[name] = string(text)
+				}
+			} else {
+				nv := toRaw(left.Field(i))
+				if nv != nil {
+					m[name] = nv
+				}
+			}
+		}
+
+		return m
+	}
+	return left.Interface()
+}
+
+// All values are evaluated as string, funcs that takes objects are implemented elsewhere
+type externalFunc struct {
+	f func([]reflect.Value) (interface{}, error)
+}
+
+func (e externalFunc) Evaluate(ev *eval.Evaluator, args []exprparser.Node) (*eval.EvaluationResult, error) {
+	rargs := []reflect.Value{}
+	for _, arg := range args {
+		res, err := ev.Evaluate(arg)
+		if err != nil {
+			return nil, err
+		}
+		rargs = append(rargs, reflect.ValueOf(res.ConvertToString()))
+	}
+	res, err := e.f(rargs)
+	if err != nil {
+		return nil, err
+	}
+	return eval.CreateIntermediateResult(ev.Context(), res), nil
+}
+
 func (impl *interperterImpl) Evaluate(input string, defaultStatusCheck DefaultStatusCheck) (interface{}, error) {
 	input = strings.TrimPrefix(input, "${{")
+	input = strings.TrimSuffix(input, "}}")
 	if defaultStatusCheck != DefaultStatusCheckNone && input == "" {
 		input = "success()"
 	}
-	parser := actionlint.NewExprParser()
-	exprNode, err := parser.Parse(actionlint.NewExprLexer(input + "}}"))
+
+	exprNode, err := exprparser.Parse(input)
 	if err != nil {
-		return nil, fmt.Errorf("failed to parse: %s", err.Message)
+		return nil, fmt.Errorf("failed to parse: %s", err.Error())
 	}
 
 	if defaultStatusCheck != DefaultStatusCheckNone {
 		hasStatusCheckFunction := false
-		actionlint.VisitExprNode(exprNode, func(node, _ actionlint.ExprNode, entering bool) {
-			if funcCallNode, ok := node.(*actionlint.FuncCallNode); entering && ok {
-				switch strings.ToLower(funcCallNode.Callee) {
+		exprparser.VisitNode(exprNode, func(node exprparser.Node) {
+			if funcCallNode, ok := node.(*exprparser.FunctionNode); ok {
+				switch strings.ToLower(funcCallNode.Name) {
 				case "success", "always", "cancelled", "failure":
 					hasStatusCheckFunction = true
 				}
@@ -106,470 +193,103 @@ func (impl *interperterImpl) Evaluate(input string, defaultStatusCheck DefaultSt
 		})
 
 		if !hasStatusCheckFunction {
-			exprNode = &actionlint.LogicalOpNode{
-				Kind: actionlint.LogicalOpNodeKindAnd,
-				Left: &actionlint.FuncCallNode{
-					Callee: defaultStatusCheck.String(),
-					Args:   []actionlint.ExprNode{},
+			exprNode = &exprparser.BinaryNode{
+				Op: "&&",
+				Left: &exprparser.FunctionNode{
+					Name: defaultStatusCheck.String(),
+					Args: []exprparser.Node{},
 				},
 				Right: exprNode,
 			}
 		}
 	}
 
-	result, err2 := impl.evaluateNode(exprNode)
+	functions := impl.GetFunctions()
 
-	return result, err2
+	vars := impl.GetVariables()
+
+	ctx := eval.EvaluationContext{
+		Functions: functions,
+		Variables: vars,
+	}
+	evaluator := eval.NewEvaluator(&ctx)
+	res, err := evaluator.Evaluate(exprNode)
+	if err != nil {
+		return nil, err
+	}
+	return evaluator.ToRaw(res)
 }
 
-func (impl *interperterImpl) evaluateNode(exprNode actionlint.ExprNode) (interface{}, error) {
-	switch node := exprNode.(type) {
-	case *actionlint.VariableNode:
-		return impl.evaluateVariable(node)
-	case *actionlint.BoolNode:
-		return node.Value, nil
-	case *actionlint.NullNode:
-		return nil, nil
-	case *actionlint.IntNode:
-		return node.Value, nil
-	case *actionlint.FloatNode:
-		return node.Value, nil
-	case *actionlint.StringNode:
-		return node.Value, nil
-	case *actionlint.IndexAccessNode:
-		return impl.evaluateIndexAccess(node)
-	case *actionlint.ObjectDerefNode:
-		return impl.evaluateObjectDeref(node)
-	case *actionlint.ArrayDerefNode:
-		return impl.evaluateArrayDeref(node)
-	case *actionlint.NotOpNode:
-		return impl.evaluateNot(node)
-	case *actionlint.CompareOpNode:
-		return impl.evaluateCompare(node)
-	case *actionlint.LogicalOpNode:
-		return impl.evaluateLogicalCompare(node)
-	case *actionlint.FuncCallNode:
-		return impl.evaluateFuncCall(node)
-	default:
-		return nil, fmt.Errorf("fatal error! Unknown node type: %s node: %+v", reflect.TypeOf(exprNode), exprNode)
+func (impl *interperterImpl) GetFunctions() eval.CaseInsensitiveObject[eval.Function] {
+	functions := eval.GetFunctions()
+	if impl.env.HashFiles != nil {
+		functions["hashfiles"] = &externalFunc{impl.env.HashFiles}
 	}
-}
-
-func (impl *interperterImpl) evaluateVariable(variableNode *actionlint.VariableNode) (interface{}, error) {
-	lowerName := strings.ToLower(variableNode.Name)
-	if result, err := impl.evaluateOverriddenVariable(lowerName); result != nil || err != nil {
-		return result, err
-	}
-	switch lowerName {
-	case "github":
-		return impl.env.Github, nil
-	case "env":
-		if impl.env.EnvCS {
-			return CaseSensitiveDict(impl.env.Env), nil
+	functions["always"] = &externalFunc{func(_ []reflect.Value) (interface{}, error) {
+		return impl.always()
+	}}
+	functions["success"] = &externalFunc{func(_ []reflect.Value) (interface{}, error) {
+		if impl.config.Context == "job" {
+			return impl.jobSuccess()
 		}
-		return impl.env.Env, nil
-	case "job":
-		return impl.env.Job, nil
-	case "jobs":
-		if impl.env.Jobs == nil {
-			return nil, fmt.Errorf("unavailable context: jobs")
+		if impl.config.Context == "step" {
+			return impl.stepSuccess()
 		}
-		return impl.env.Jobs, nil
-	case "steps":
-		return impl.env.Steps, nil
-	case "runner":
-		return impl.env.Runner, nil
-	case "secrets":
-		return impl.env.Secrets, nil
-	case "vars":
-		return impl.env.Vars, nil
-	case "strategy":
-		return impl.env.Strategy, nil
-	case "matrix":
-		return impl.env.Matrix, nil
-	case "needs":
-		return impl.env.Needs, nil
-	case "inputs":
-		return impl.env.Inputs, nil
-	case "infinity":
-		return math.Inf(1), nil
-	case "nan":
-		return math.NaN(), nil
-	default:
-		return nil, fmt.Errorf("unavailable context: %s", variableNode.Name)
-	}
+		return nil, fmt.Errorf("context '%s' must be one of 'job' or 'step'", impl.config.Context)
+	}}
+	functions["failure"] = &externalFunc{func(_ []reflect.Value) (interface{}, error) {
+		if impl.config.Context == "job" {
+			return impl.jobFailure()
+		}
+		if impl.config.Context == "step" {
+			return impl.stepFailure()
+		}
+		return nil, fmt.Errorf("context '%s' must be one of 'job' or 'step'", impl.config.Context)
+	}}
+	functions["cancelled"] = &externalFunc{func(_ []reflect.Value) (interface{}, error) {
+		return impl.cancelled()
+	}}
+	return functions
 }
 
-func (impl *interperterImpl) evaluateOverriddenVariable(lowerName string) (interface{}, error) {
-	if cd, ok := impl.env.CtxData[lowerName]; ok {
+func (impl *interperterImpl) GetVariables() eval.ReadOnlyObject[any] {
+	githubCtx := toRawObj(reflect.ValueOf(impl.env.Github))
+	var env any
+	if impl.env.EnvCS {
+		env = eval.CaseSensitiveObject[any](toRawObj(reflect.ValueOf(impl.env.Env)))
+	} else {
+		env = eval.CaseInsensitiveObject[any](toRawObj(reflect.ValueOf(impl.env.Env)))
+	}
+	vars := eval.CaseInsensitiveObject[any]{
+		"github":   githubCtx,
+		"env":      env,
+		"vars":     toRawObj(reflect.ValueOf(impl.env.Vars)),
+		"steps":    toRawObj(reflect.ValueOf(impl.env.Steps)),
+		"strategy": toRawObj(reflect.ValueOf(impl.env.Strategy)),
+		"matrix":   toRawObj(reflect.ValueOf(impl.env.Matrix)),
+		"secrets":  toRawObj(reflect.ValueOf(impl.env.Secrets)),
+		"job":      toRawObj(reflect.ValueOf(impl.env.Job)),
+		"runner":   toRawObj(reflect.ValueOf(impl.env.Runner)),
+		"needs":    toRawObj(reflect.ValueOf(impl.env.Needs)),
+		"jobs":     toRawObj(reflect.ValueOf(impl.env.Jobs)),
+		"inputs":   toRawObj(reflect.ValueOf(impl.env.Inputs)),
+	}
+	for name, cd := range impl.env.CtxData {
+		lowerName := strings.ToLower(name)
 		if serverPayload, ok := cd.(map[string]interface{}); ok {
 			if lowerName == "github" {
-				var out map[string]interface{}
-				content, err := json.Marshal(impl.env.Github)
-				if err != nil {
-					return nil, err
-				}
-				err = json.Unmarshal(content, &out)
-				if err != nil {
-					return nil, err
-				}
 				for k, v := range serverPayload {
 					// skip empty values, because github.workspace was set by Gitea Actions to an empty string
-					if _, ok := out[k]; !ok || v != "" && v != nil {
-						out[k] = v
+					if _, ok := githubCtx[k]; !ok || v != "" && v != nil {
+						githubCtx[k] = v
 					}
 				}
-				return out, nil
+				continue
 			}
 		}
-		return cd, nil
-	}
-	return nil, nil
-}
-
-func (impl *interperterImpl) evaluateIndexAccess(indexAccessNode *actionlint.IndexAccessNode) (interface{}, error) {
-	left, err := impl.evaluateNode(indexAccessNode.Operand)
-	if err != nil {
-		return nil, err
-	}
-
-	leftValue := reflect.ValueOf(left)
-
-	right, err := impl.evaluateNode(indexAccessNode.Index)
-	if err != nil {
-		return nil, err
-	}
-
-	rightValue := reflect.ValueOf(right)
-
-	switch rightValue.Kind() {
-	case reflect.String:
-		return impl.getPropertyValue(leftValue, rightValue.String())
-
-	case reflect.Int:
-		switch leftValue.Kind() {
-		case reflect.Slice:
-			if rightValue.Int() < 0 || rightValue.Int() >= int64(leftValue.Len()) {
-				return nil, nil
-			}
-			return leftValue.Index(int(rightValue.Int())).Interface(), nil
-		default:
-			return nil, nil
-		}
-
-	default:
-		return nil, nil
-	}
-}
-
-func (impl *interperterImpl) evaluateObjectDeref(objectDerefNode *actionlint.ObjectDerefNode) (interface{}, error) {
-	left, err := impl.evaluateNode(objectDerefNode.Receiver)
-	if err != nil {
-		return nil, err
-	}
-
-	_, receiverIsDeref := objectDerefNode.Receiver.(*actionlint.ArrayDerefNode)
-	if receiverIsDeref {
-		return impl.getPropertyValueDereferenced(reflect.ValueOf(left), objectDerefNode.Property)
-	}
-	return impl.getPropertyValue(reflect.ValueOf(left), objectDerefNode.Property)
-}
-
-func (impl *interperterImpl) evaluateArrayDeref(arrayDerefNode *actionlint.ArrayDerefNode) (interface{}, error) {
-	left, err := impl.evaluateNode(arrayDerefNode.Receiver)
-	if err != nil {
-		return nil, err
-	}
-
-	return impl.getSafeValue(reflect.ValueOf(left)), nil
-}
-
-func (impl *interperterImpl) getPropertyValue(left reflect.Value, property string) (value interface{}, err error) {
-	switch left.Kind() {
-	case reflect.Ptr:
-		return impl.getPropertyValue(left.Elem(), property)
-
-	case reflect.Struct:
-		leftType := left.Type()
-		for i := 0; i < leftType.NumField(); i++ {
-			jsonName := leftType.Field(i).Tag.Get("json")
-			if jsonName == property {
-				property = leftType.Field(i).Name
-				break
-			}
-		}
-
-		fieldValue := left.FieldByNameFunc(func(name string) bool {
-			return strings.EqualFold(name, property)
-		})
-
-		if fieldValue.Kind() == reflect.Invalid {
-			return "", nil
-		}
-
-		i := fieldValue.Interface()
-		// The type stepStatus int is an integer, but should be treated as string
-		if m, ok := i.(encoding.TextMarshaler); ok {
-			text, err := m.MarshalText()
-			if err != nil {
-				return nil, err
-			}
-			return string(text), nil
-		}
-		return i, nil
-
-	case reflect.Map:
-		cd, ok := left.Interface().(CaseSensitiveDict)
-		if ok {
-			return cd[property], nil
-		}
-
-		iter := left.MapRange()
-
-		for iter.Next() {
-			key := iter.Key()
-
-			switch key.Kind() {
-			case reflect.String:
-				if strings.EqualFold(key.String(), property) {
-					return impl.getMapValue(iter.Value())
-				}
-
-			default:
-				return nil, fmt.Errorf("'%s' in map key not implemented", key.Kind())
-			}
-		}
-
-		return nil, nil
-
-	case reflect.Slice:
-		var values []interface{}
-
-		for i := 0; i < left.Len(); i++ {
-			value, err := impl.getPropertyValue(left.Index(i).Elem(), property)
-			if err != nil {
-				return nil, err
-			}
-
-			values = append(values, value)
-		}
-
-		return values, nil
-	}
-
-	return nil, nil
-}
-
-func (impl *interperterImpl) getPropertyValueDereferenced(left reflect.Value, property string) (value interface{}, err error) {
-	switch left.Kind() {
-	case reflect.Ptr:
-		return impl.getPropertyValue(left, property)
-
-	case reflect.Struct:
-		return impl.getPropertyValue(left, property)
-	case reflect.Map:
-		iter := left.MapRange()
-
-		var values []interface{}
-		for iter.Next() {
-			value, err := impl.getPropertyValue(iter.Value(), property)
-			if err != nil {
-				return nil, err
-			}
-
-			values = append(values, value)
-		}
-
-		return values, nil
-	case reflect.Slice:
-		return impl.getPropertyValue(left, property)
-	}
-
-	return nil, nil
-}
-
-func (impl *interperterImpl) getMapValue(value reflect.Value) (interface{}, error) {
-	if value.Kind() == reflect.Ptr {
-		return impl.getMapValue(value.Elem())
-	}
-
-	return value.Interface(), nil
-}
-
-func (impl *interperterImpl) evaluateNot(notNode *actionlint.NotOpNode) (interface{}, error) {
-	operand, err := impl.evaluateNode(notNode.Operand)
-	if err != nil {
-		return nil, err
-	}
-
-	return !IsTruthy(operand), nil
-}
-
-func (impl *interperterImpl) evaluateCompare(compareNode *actionlint.CompareOpNode) (interface{}, error) {
-	left, err := impl.evaluateNode(compareNode.Left)
-	if err != nil {
-		return nil, err
-	}
-
-	right, err := impl.evaluateNode(compareNode.Right)
-	if err != nil {
-		return nil, err
-	}
-
-	leftValue := reflect.ValueOf(left)
-	rightValue := reflect.ValueOf(right)
-
-	return impl.compareValues(leftValue, rightValue, compareNode.Kind)
-}
-
-func (impl *interperterImpl) compareValues(leftValue reflect.Value, rightValue reflect.Value, kind actionlint.CompareOpNodeKind) (interface{}, error) {
-	if leftValue.Kind() != rightValue.Kind() {
-		if !impl.isNumber(leftValue) {
-			leftValue = impl.coerceToNumber(leftValue)
-		}
-		if !impl.isNumber(rightValue) {
-			rightValue = impl.coerceToNumber(rightValue)
-		}
-	}
-
-	switch leftValue.Kind() {
-	case reflect.Bool:
-		return impl.compareNumber(float64(impl.coerceToNumber(leftValue).Int()), float64(impl.coerceToNumber(rightValue).Int()), kind)
-	case reflect.String:
-		return impl.compareString(strings.ToLower(leftValue.String()), strings.ToLower(rightValue.String()), kind)
-
-	case reflect.Int:
-		if rightValue.Kind() == reflect.Float64 {
-			return impl.compareNumber(float64(leftValue.Int()), rightValue.Float(), kind)
-		}
-
-		return impl.compareNumber(float64(leftValue.Int()), float64(rightValue.Int()), kind)
-
-	case reflect.Float64:
-		if rightValue.Kind() == reflect.Int {
-			return impl.compareNumber(leftValue.Float(), float64(rightValue.Int()), kind)
-		}
-
-		return impl.compareNumber(leftValue.Float(), rightValue.Float(), kind)
-
-	case reflect.Invalid:
-		if rightValue.Kind() == reflect.Invalid {
-			return true, nil
-		}
-
-		// not possible situation - params are converted to the same type in code above
-		return nil, fmt.Errorf("compare params of Invalid type: left: %+v, right: %+v", leftValue.Kind(), rightValue.Kind())
-
-	default:
-		return nil, fmt.Errorf("compare not implemented for types: left: %+v, right: %+v", leftValue.Kind(), rightValue.Kind())
-	}
-}
-
-func (impl *interperterImpl) coerceToNumber(value reflect.Value) reflect.Value {
-	switch value.Kind() {
-	case reflect.Invalid:
-		return reflect.ValueOf(0)
-
-	case reflect.Bool:
-		switch value.Bool() {
-		case true:
-			return reflect.ValueOf(1)
-		case false:
-			return reflect.ValueOf(0)
-		}
-
-	case reflect.String:
-		if value.String() == "" {
-			return reflect.ValueOf(0)
-		}
-
-		// try to parse the string as a number
-		evaluated, err := impl.Evaluate(value.String(), DefaultStatusCheckNone)
-		if err != nil {
-			return reflect.ValueOf(math.NaN())
-		}
-
-		if value := reflect.ValueOf(evaluated); impl.isNumber(value) {
-			return value
-		}
-	}
-
-	return reflect.ValueOf(math.NaN())
-}
-
-func (impl *interperterImpl) coerceToString(value reflect.Value) reflect.Value {
-	switch value.Kind() {
-	case reflect.Invalid:
-		return reflect.ValueOf("")
-
-	case reflect.Bool:
-		switch value.Bool() {
-		case true:
-			return reflect.ValueOf("true")
-		case false:
-			return reflect.ValueOf("false")
-		}
-
-	case reflect.String:
-		return value
-
-	case reflect.Int:
-		return reflect.ValueOf(fmt.Sprint(value))
-
-	case reflect.Float64:
-		if math.IsInf(value.Float(), 1) {
-			return reflect.ValueOf("Infinity")
-		} else if math.IsInf(value.Float(), -1) {
-			return reflect.ValueOf("-Infinity")
-		}
-		return reflect.ValueOf(fmt.Sprintf("%.15G", value.Float()))
-
-	case reflect.Slice:
-		return reflect.ValueOf("Array")
-
-	case reflect.Map:
-		return reflect.ValueOf("Object")
-	}
-
-	return value
-}
-
-func (impl *interperterImpl) compareString(left string, right string, kind actionlint.CompareOpNodeKind) (bool, error) {
-	switch kind {
-	case actionlint.CompareOpNodeKindLess:
-		return left < right, nil
-	case actionlint.CompareOpNodeKindLessEq:
-		return left <= right, nil
-	case actionlint.CompareOpNodeKindGreater:
-		return left > right, nil
-	case actionlint.CompareOpNodeKindGreaterEq:
-		return left >= right, nil
-	case actionlint.CompareOpNodeKindEq:
-		return left == right, nil
-	case actionlint.CompareOpNodeKindNotEq:
-		return left != right, nil
-	default:
-		return false, fmt.Errorf("todo: not implemented to compare '%+v'", kind)
-	}
-}
-
-func (impl *interperterImpl) compareNumber(left float64, right float64, kind actionlint.CompareOpNodeKind) (bool, error) {
-	switch kind {
-	case actionlint.CompareOpNodeKindLess:
-		return left < right, nil
-	case actionlint.CompareOpNodeKindLessEq:
-		return left <= right, nil
-	case actionlint.CompareOpNodeKindGreater:
-		return left > right, nil
-	case actionlint.CompareOpNodeKindGreaterEq:
-		return left >= right, nil
-	case actionlint.CompareOpNodeKindEq:
-		return left == right, nil
-	case actionlint.CompareOpNodeKindNotEq:
-		return left != right, nil
-	default:
-		return false, fmt.Errorf("todo: not implemented to compare '%+v'", kind)
+		vars[name] = cd
 	}
+	return vars
 }
 
 func IsTruthy(input interface{}) bool {
@@ -598,116 +318,3 @@ func IsTruthy(input interface{}) bool {
 		return false
 	}
 }
-
-func (impl *interperterImpl) isNumber(value reflect.Value) bool {
-	switch value.Kind() {
-	case reflect.Int, reflect.Float64:
-		return true
-	default:
-		return false
-	}
-}
-
-func (impl *interperterImpl) getSafeValue(value reflect.Value) interface{} {
-	switch value.Kind() {
-	case reflect.Invalid:
-		return nil
-
-	case reflect.Float64:
-		if value.Float() == 0 {
-			return 0
-		}
-	}
-
-	return value.Interface()
-}
-
-func (impl *interperterImpl) evaluateLogicalCompare(compareNode *actionlint.LogicalOpNode) (interface{}, error) {
-	left, err := impl.evaluateNode(compareNode.Left)
-	if err != nil {
-		return nil, err
-	}
-
-	leftValue := reflect.ValueOf(left)
-
-	if IsTruthy(left) == (compareNode.Kind == actionlint.LogicalOpNodeKindOr) {
-		return impl.getSafeValue(leftValue), nil
-	}
-
-	right, err := impl.evaluateNode(compareNode.Right)
-	if err != nil {
-		return nil, err
-	}
-
-	rightValue := reflect.ValueOf(right)
-
-	switch compareNode.Kind {
-	case actionlint.LogicalOpNodeKindAnd:
-		return impl.getSafeValue(rightValue), nil
-	case actionlint.LogicalOpNodeKindOr:
-		return impl.getSafeValue(rightValue), nil
-	}
-
-	return nil, fmt.Errorf("unable to compare incompatibles types '%s' and '%s'", leftValue.Kind(), rightValue.Kind())
-}
-
-//nolint:gocyclo
-func (impl *interperterImpl) evaluateFuncCall(funcCallNode *actionlint.FuncCallNode) (interface{}, error) {
-	args := make([]reflect.Value, 0)
-
-	for _, arg := range funcCallNode.Args {
-		value, err := impl.evaluateNode(arg)
-		if err != nil {
-			return nil, err
-		}
-
-		args = append(args, reflect.ValueOf(value))
-	}
-
-	switch strings.ToLower(funcCallNode.Callee) {
-	case "contains":
-		return impl.contains(args[0], args[1])
-	case "startswith":
-		return impl.startsWith(args[0], args[1])
-	case "endswith":
-		return impl.endsWith(args[0], args[1])
-	case "format":
-		return impl.format(args[0], args[1:]...)
-	case "join":
-		if len(args) == 1 {
-			return impl.join(args[0], reflect.ValueOf(","))
-		}
-		return impl.join(args[0], args[1])
-	case "tojson":
-		return impl.toJSON(args[0])
-	case "fromjson":
-		return impl.fromJSON(args[0])
-	case "hashfiles":
-		if impl.env.HashFiles != nil {
-			return impl.env.HashFiles(args)
-		}
-		return impl.hashFiles(args...)
-	case "always":
-		return impl.always()
-	case "success":
-		if impl.config.Context == "job" {
-			return impl.jobSuccess()
-		}
-		if impl.config.Context == "step" {
-			return impl.stepSuccess()
-		}
-		return nil, fmt.Errorf("context '%s' must be one of 'job' or 'step'", impl.config.Context)
-	case "failure":
-		if impl.config.Context == "job" {
-			return impl.jobFailure()
-		}
-		if impl.config.Context == "step" {
-			return impl.stepFailure()
-		}
-		return nil, fmt.Errorf("context '%s' must be one of 'job' or 'step'", impl.config.Context)
-	case "cancelled":
-		return impl.cancelled()
-	default:
-		return nil, fmt.Errorf("todo: '%s' not implemented", funcCallNode.Callee)
-	}
-}