219 lines
5.9 KiB
Go
219 lines
5.9 KiB
Go
// Copyright 2016 Marapongo, Inc. All rights reserved.
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package encoding
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import (
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"reflect"
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"github.com/marapongo/mu/pkg/pack/ast"
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"github.com/marapongo/mu/pkg/util/contract"
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"github.com/marapongo/mu/pkg/util/mapper"
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)
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func decodeExpression(m mapper.Mapper, tree mapper.Object) (ast.Expression, error) {
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k, err := mapper.FieldString(tree, reflect.TypeOf((*ast.Expression)(nil)).Elem(), "kind", true)
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if err != nil {
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return nil, err
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}
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if k != nil {
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kind := ast.NodeKind(*k)
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switch kind {
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// Literals
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case ast.NullLiteralKind:
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return decodeNullLiteral(m, tree)
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case ast.BoolLiteralKind:
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return decodeBoolLiteral(m, tree)
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case ast.NumberLiteralKind:
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return decodeNumberLiteral(m, tree)
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case ast.StringLiteralKind:
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return decodeStringLiteral(m, tree)
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case ast.ArrayLiteralKind:
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return decodeArrayLiteral(m, tree)
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case ast.ObjectLiteralKind:
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return decodeObjectLiteral(m, tree)
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// Loads
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case ast.LoadLocationExpressionKind:
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return decodeLoadLocationExpression(m, tree)
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case ast.LoadDynamicExpressionKind:
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return decodeLoadDynamicExpression(m, tree)
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// Functions
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case ast.NewExpressionKind:
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return decodeNewExpression(m, tree)
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case ast.InvokeFunctionExpressionKind:
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return decodeInvokeFunctionExpression(m, tree)
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case ast.LambdaExpressionKind:
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return decodeLambdaExpression(m, tree)
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// Operators
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case ast.UnaryOperatorExpressionKind:
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return decodeUnaryOperatorExpression(m, tree)
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case ast.BinaryOperatorExpressionKind:
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return decodeBinaryOperatorExpression(m, tree)
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// Type testing
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case ast.CastExpressionKind:
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return decodeCastExpression(m, tree)
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case ast.IsInstExpressionKind:
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return decodeIsInstExpression(m, tree)
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case ast.TypeOfExpressionKind:
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return decodeTypeOfExpression(m, tree)
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// Miscellaneous
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case ast.ConditionalExpressionKind:
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return decodeConditionalExpression(m, tree)
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case ast.SequenceExpressionKind:
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return decodeSequenceExpression(m, tree)
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default:
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contract.FailMF("Unrecognized Expression kind: %v\n%v\n", kind, tree)
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}
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}
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return nil, nil
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}
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func decodeNullLiteral(m mapper.Mapper, tree mapper.Object) (*ast.NullLiteral, error) {
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var lit ast.NullLiteral
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if err := m.Decode(tree, &lit); err != nil {
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return nil, err
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}
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return &lit, nil
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}
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func decodeBoolLiteral(m mapper.Mapper, tree mapper.Object) (*ast.BoolLiteral, error) {
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var lit ast.BoolLiteral
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if err := m.Decode(tree, &lit); err != nil {
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return nil, err
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}
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return &lit, nil
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}
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func decodeNumberLiteral(m mapper.Mapper, tree mapper.Object) (*ast.NumberLiteral, error) {
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var lit ast.NumberLiteral
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if err := m.Decode(tree, &lit); err != nil {
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return nil, err
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}
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return &lit, nil
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}
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func decodeStringLiteral(m mapper.Mapper, tree mapper.Object) (*ast.StringLiteral, error) {
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var lit ast.StringLiteral
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if err := m.Decode(tree, &lit); err != nil {
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return nil, err
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}
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return &lit, nil
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}
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func decodeArrayLiteral(m mapper.Mapper, tree mapper.Object) (*ast.ArrayLiteral, error) {
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var lit ast.ArrayLiteral
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if err := m.Decode(tree, &lit); err != nil {
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return nil, err
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}
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return &lit, nil
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}
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func decodeObjectLiteral(m mapper.Mapper, tree mapper.Object) (*ast.ObjectLiteral, error) {
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var lit ast.ObjectLiteral
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if err := m.Decode(tree, &lit); err != nil {
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return nil, err
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}
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return &lit, nil
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}
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func decodeLoadLocationExpression(m mapper.Mapper, tree mapper.Object) (*ast.LoadLocationExpression, error) {
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var expr ast.LoadLocationExpression
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if err := m.Decode(tree, &expr); err != nil {
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return nil, err
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}
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return &expr, nil
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}
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func decodeLoadDynamicExpression(m mapper.Mapper, tree mapper.Object) (*ast.LoadDynamicExpression, error) {
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var expr ast.LoadDynamicExpression
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if err := m.Decode(tree, &expr); err != nil {
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return nil, err
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}
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return &expr, nil
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}
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func decodeNewExpression(m mapper.Mapper, tree mapper.Object) (*ast.NewExpression, error) {
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var expr ast.NewExpression
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if err := m.Decode(tree, &expr); err != nil {
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return nil, err
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}
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return &expr, nil
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}
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func decodeInvokeFunctionExpression(m mapper.Mapper, tree mapper.Object) (*ast.InvokeFunctionExpression, error) {
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var expr ast.InvokeFunctionExpression
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if err := m.Decode(tree, &expr); err != nil {
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return nil, err
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}
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return &expr, nil
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}
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func decodeLambdaExpression(m mapper.Mapper, tree mapper.Object) (*ast.LambdaExpression, error) {
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var expr ast.LambdaExpression
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if err := m.Decode(tree, &expr); err != nil {
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return nil, err
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}
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return &expr, nil
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}
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func decodeUnaryOperatorExpression(m mapper.Mapper, tree mapper.Object) (*ast.UnaryOperatorExpression, error) {
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var expr ast.UnaryOperatorExpression
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if err := m.Decode(tree, &expr); err != nil {
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return nil, err
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}
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return &expr, nil
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}
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func decodeBinaryOperatorExpression(m mapper.Mapper, tree mapper.Object) (*ast.BinaryOperatorExpression, error) {
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var expr ast.BinaryOperatorExpression
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if err := m.Decode(tree, &expr); err != nil {
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return nil, err
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}
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return &expr, nil
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}
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func decodeCastExpression(m mapper.Mapper, tree mapper.Object) (*ast.CastExpression, error) {
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var expr ast.CastExpression
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if err := m.Decode(tree, &expr); err != nil {
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return nil, err
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}
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return &expr, nil
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}
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func decodeIsInstExpression(m mapper.Mapper, tree mapper.Object) (*ast.IsInstExpression, error) {
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var expr ast.IsInstExpression
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if err := m.Decode(tree, &expr); err != nil {
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return nil, err
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}
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return &expr, nil
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}
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func decodeTypeOfExpression(m mapper.Mapper, tree mapper.Object) (*ast.TypeOfExpression, error) {
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var expr ast.TypeOfExpression
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if err := m.Decode(tree, &expr); err != nil {
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return nil, err
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}
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return &expr, nil
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}
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func decodeConditionalExpression(m mapper.Mapper, tree mapper.Object) (*ast.ConditionalExpression, error) {
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var expr ast.ConditionalExpression
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if err := m.Decode(tree, &expr); err != nil {
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return nil, err
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}
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return &expr, nil
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}
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func decodeSequenceExpression(m mapper.Mapper, tree mapper.Object) (*ast.SequenceExpression, error) {
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var expr ast.SequenceExpression
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if err := m.Decode(tree, &expr); err != nil {
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return nil, err
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}
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return &expr, nil
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}
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