expr/simple-var-store.go

68 lines
1.5 KiB
Go

// simple-var-store.go
package expr
import "fmt"
type SimpleVarStore struct {
varStore map[string]any
}
func NewSimpleVarStore() *SimpleVarStore {
return &SimpleVarStore{
varStore: make(map[string]any),
}
}
func (ctx *SimpleVarStore) Clone() (clone ExprContext) {
clone = &SimpleVarStore{
varStore: CloneMap(ctx.varStore),
}
return clone
}
func (ctx *SimpleVarStore) GetVar(varName string) (v any, exists bool) {
v, exists = ctx.varStore[varName]
return
}
func (ctx *SimpleVarStore) setVar(varName string, value any) {
ctx.varStore[varName] = value
}
func (ctx *SimpleVarStore) SetVar(varName string, value any) {
if allowedValue, ok := fromGenericAny(value); ok {
ctx.varStore[varName] = allowedValue
} else {
panic(fmt.Errorf("unsupported type %T of value %v", value, value))
}
}
func (ctx *SimpleVarStore) EnumVars(acceptor func(name string) (accept bool)) (varNames []string) {
varNames = make([]string, 0)
for name := range ctx.varStore {
if acceptor != nil {
if acceptor(name) {
varNames = append(varNames, name)
}
} else {
varNames = append(varNames, name)
}
}
return
}
func (ctx *SimpleVarStore) GetFuncInfo(name string) (f ExprFunc) {
return
}
func (ctx *SimpleVarStore) Call(name string, args []any) (result any, err error) {
return
}
func (ctx *SimpleVarStore) RegisterFunc(name string, functor Functor, minArgs, maxArgs int) {
}
func (ctx *SimpleVarStore) EnumFuncs(acceptor func(name string) (accept bool)) (funcNames []string) {
return
}