mirror of
https://github.com/MontFerret/ferret.git
synced 2024-12-16 11:37:36 +02:00
acf2f13dcb
* sync with MontFerret/ferret * fix --param handling When params is converted to map it uses strings.Split, which slices a string into all substrings separated by :. * remove impossible conditions nil != nil * delete ineffectual assignments * replace '+= 1' with '++' * remove useless comparison with nil * merge variable declarations * remove bool comparison * fix imports * fix imports * delete unused file * use copy instead of loop * delete unused DummyInterface * remove unnecassary break statements * tidy modules
58 lines
1.2 KiB
Go
58 lines
1.2 KiB
Go
package expressions
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import (
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"context"
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"github.com/MontFerret/ferret/pkg/runtime/core"
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"github.com/MontFerret/ferret/pkg/runtime/values"
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)
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type MemberExpression struct {
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src core.SourceMap
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variableName string
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path []core.Expression
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}
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func NewMemberExpression(src core.SourceMap, variableName string, path []core.Expression) (*MemberExpression, error) {
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if variableName == "" {
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return nil, core.Error(core.ErrMissedArgument, "variable name")
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}
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if len(path) == 0 {
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return nil, core.Error(core.ErrMissedArgument, "path expressions")
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}
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return &MemberExpression{src, variableName, path}, nil
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}
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func (e *MemberExpression) Exec(ctx context.Context, scope *core.Scope) (core.Value, error) {
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val, err := scope.GetVariable(e.variableName)
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if err != nil {
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return values.None, core.SourceError(
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e.src,
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err,
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)
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}
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strPath := make([]core.Value, len(e.path))
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for idx, exp := range e.path {
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segment, err := exp.Exec(ctx, scope)
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if err != nil {
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return values.None, err
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}
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strPath[idx] = segment
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}
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out, err := values.GetIn(ctx, val, strPath)
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if err != nil {
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return values.None, core.SourceError(e.src, err)
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}
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return out, nil
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}
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