go-pkg/expr
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removed commented code

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This commit is contained in:
Celestino Amoroso 2024-04-27 06:14:09 +02:00
parent 10eec286fa
commit 70892aa980
3 changed files with 3 additions and 80 deletions
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5
operand-expr.go
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@ -27,8 +27,3 @@ func evalExpr(ctx ExprContext, self *term) (v any, err error) {
}
return
}
// init
// func init() {
// registerTermConstructor(SymExpression, newExprTerm)
// }

14
operand-func.go
View File

@ -40,20 +40,6 @@ func evalFuncCall(parentCtx ExprContext, self *term) (v any, err error) {
return
}
func exportVar(ctx ExprContext, name string, value any) {
if name[0] == '@' {
name = name[1:]
}
ctx.setVar(name, value)
}
func exportFunc(ctx ExprContext, name string, info ExprFunc) {
if name[0] == '@' {
name = name[1:]
}
ctx.RegisterFunc(name, info.Functor(), info.MinArgs(), info.MaxArgs())
}
// -------- function definition term
func newFuncDefTerm(tk *Token, args []*term) *term {
return &term{

64
operator-selector.go
View File

@ -4,65 +4,7 @@
// operator-selector.go
package expr
// //-------- export all term
// func newSelectorTerm(tk *Token) (inst *term) {
// return &term{
// tk: *tk,
// children: make([]*term, 0, 3),
// position: posMultifix,
// priority: priSelector,
// evalFunc: evalSelector,
// }
// }
// func isSelectorCase(ctx ExprContext, exprValue, caseSel any, caseIndex int) (selectedValue any, err error) {
// caseData, _ := caseSel.(*selectorCase)
// if caseData.filterList == nil {
// selectedValue, err = caseData.caseExpr.eval(ctx, false)
// } else {
// filterList := caseData.filterList.children
// if len(filterList) == 0 && exprValue == int64(caseIndex) {
// selectedValue, err = caseData.caseExpr.eval(ctx, false)
// } else {
// var caseValue any
// for _, caseTerm := range filterList {
// if caseValue, err = caseTerm.compute(ctx); err != nil || caseValue == exprValue {
// selectedValue, err = caseData.caseExpr.eval(ctx, false)
// break
// }
// }
// }
// }
// return
// }
// func evalSelector(ctx ExprContext, self *term) (v any, err error) {
// var exprValue any
// // var caseList []*term
// if err = self.checkOperands(); err != nil {
// return
// }
// exprTerm := self.children[0]
// if exprValue, err = exprTerm.compute(ctx); err != nil {
// return
// }
// caseList := self.children[1:]
// for i, caseTerm := range caseList {
// caseSel := caseTerm.value()
// if v, err = isSelectorCase(ctx, exprValue, caseSel, i); err != nil || v != nil {
// break
// }
// }
// if err == nil && v == nil {
// err = exprTerm.tk.Errorf("no case catches the value (%v) of the selection expression", exprValue)
// }
// return
// }
//-------- export all term
//-------- selector term
func newSelectorTerm(tk *Token) (inst *term) {
return &term{
@ -74,7 +16,7 @@ func newSelectorTerm(tk *Token) (inst *term) {
}
}
func isSelectorCase(ctx ExprContext, exprValue, caseSel any, caseIndex int) (match bool, selectedValue any, err error) {
func trySelectorCase(ctx ExprContext, exprValue, caseSel any, caseIndex int) (match bool, selectedValue any, err error) {
caseData, _ := caseSel.(*selectorCase)
if caseData.filterList == nil {
selectedValue, err = caseData.caseExpr.eval(ctx, false)
@ -113,7 +55,7 @@ func evalSelector(ctx ExprContext, self *term) (v any, err error) {
caseList, _ := caseListTerm.value().([]*term)
for i, caseTerm := range caseList {
caseSel := caseTerm.value()
if match, v, err = isSelectorCase(ctx, exprValue, caseSel, i); err != nil || match {
if match, v, err = trySelectorCase(ctx, exprValue, caseSel, i); err != nil || match {
break
}
}