mirror of
https://github.com/MontFerret/ferret.git
synced 2024-12-25 01:32:13 +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
52 lines
1.1 KiB
Go
52 lines
1.1 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 BodyExpression struct {
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statements []core.Expression
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expression core.Expression
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}
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func NewBodyExpression(size int) *BodyExpression {
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return &BodyExpression{make([]core.Expression, 0, size), nil}
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}
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func (b *BodyExpression) Add(exp core.Expression) error {
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switch exp.(type) {
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case *ForExpression, *ReturnExpression:
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if b.expression != nil {
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return core.Error(core.ErrInvalidOperation, "return expression is already defined")
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}
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b.expression = exp
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default:
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b.statements = append(b.statements, exp)
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}
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return nil
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}
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func (b *BodyExpression) Exec(ctx context.Context, scope *core.Scope) (core.Value, error) {
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select {
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case <-ctx.Done():
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return values.None, core.ErrTerminated
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default:
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}
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for _, exp := range b.statements {
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if _, err := exp.Exec(ctx, scope); err != nil {
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return values.None, err
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}
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}
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if b.expression != nil {
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return b.expression.Exec(ctx, scope)
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}
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return values.None, nil
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}
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