Leon Mika
f65c5778a9
Changed package name from github.com/lmika/audax to github.com/lmika/dynamo-browse
77 lines
1.7 KiB
Go
77 lines
1.7 KiB
Go
package queryexpr
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import (
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"github.com/aws/aws-sdk-go-v2/feature/dynamodb/expression"
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"github.com/lmika/dynamo-browse/internal/dynamo-browse/models"
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"strings"
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)
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func (a *astBooleanNot) evalToIR(ctx *evalContext, tableInfo *models.TableInfo) (irAtom, error) {
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irNode, err := a.Operand.evalToIR(ctx, tableInfo)
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if err != nil {
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return nil, err
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}
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if !a.HasNot {
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return irNode, nil
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}
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return &irBoolNot{atom: irNode}, nil
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}
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func (a *astBooleanNot) evalItem(ctx *evalContext, item models.Item) (exprValue, error) {
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val, err := a.Operand.evalItem(ctx, item)
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if err != nil {
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return nil, err
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}
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if !a.HasNot {
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return val, nil
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}
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return boolExprValue(!isAttributeTrue(val)), nil
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}
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func (a *astBooleanNot) canModifyItem(ctx *evalContext, item models.Item) bool {
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if a.HasNot {
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return false
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}
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return a.Operand.canModifyItem(ctx, item)
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}
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func (a *astBooleanNot) setEvalItem(ctx *evalContext, item models.Item, value exprValue) error {
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if a.HasNot {
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return PathNotSettableError{}
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}
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return a.Operand.setEvalItem(ctx, item, value)
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}
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func (a *astBooleanNot) deleteAttribute(ctx *evalContext, item models.Item) error {
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if a.HasNot {
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return PathNotSettableError{}
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}
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return a.Operand.deleteAttribute(ctx, item)
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}
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func (d *astBooleanNot) String() string {
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sb := new(strings.Builder)
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if d.HasNot {
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sb.WriteString(" not ")
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}
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sb.WriteString(d.Operand.String())
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return sb.String()
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}
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type irBoolNot struct {
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atom irAtom
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}
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func (d *irBoolNot) calcQueryForScan(info *models.TableInfo) (expression.ConditionBuilder, error) {
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cb, err := d.atom.calcQueryForScan(info)
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if err != nil {
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return expression.ConditionBuilder{}, err
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}
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return expression.Not(cb), nil
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}
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