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splitted go and expr function bindings in dedicated source files

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This commit is contained in:
Celestino Amoroso 2024-06-09 10:41:06 +02:00
parent 9df9ad5dd1
commit 33d70d6d1a
3 changed files with 63 additions and 53 deletions
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44
bind-expr-functions.go Normal file
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@ -0,0 +1,44 @@
// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
// All rights reserved.
// function.go
package expr
// ---- Linking with Expr functions
type exprFunctor struct {
baseFunctor
params []ExprFuncParam
expr Expr
defCtx ExprContext
}
// func newExprFunctor(e Expr, params []string, ctx ExprContext) *exprFunctor {
// return &exprFunctor{expr: e, params: params, defCtx: ctx}
// }
func newExprFunctor(e Expr, params []ExprFuncParam, ctx ExprContext) *exprFunctor {
return &exprFunctor{expr: e, params: params, defCtx: ctx}
}
func (functor *exprFunctor) Invoke(ctx ExprContext, name string, args []any) (result any, err error) {
if functor.defCtx != nil {
ctx.Merge(functor.defCtx)
}
for i, p := range functor.params {
if i < len(args) {
arg := args[i]
if funcArg, ok := arg.(Functor); ok {
// ctx.RegisterFunc(p, functor, 0, -1)
paramSpecs := funcArg.GetParams()
ctx.RegisterFunc(p.Name(), funcArg, TypeAny, paramSpecs)
} else {
ctx.UnsafeSetVar(p.Name(), arg)
}
} else {
ctx.UnsafeSetVar(p.Name(), nil)
}
}
result, err = functor.expr.Eval(ctx)
return
}

19
bind-go-functions.go Normal file
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@ -0,0 +1,19 @@
// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
// All rights reserved.
// bind-go-function.go
package expr
// ---- Linking with Go functions
type golangFunctor struct {
baseFunctor
f FuncTemplate
}
func NewGolangFunctor(f FuncTemplate) *golangFunctor {
return &golangFunctor{f: f}
}
func (functor *golangFunctor) Invoke(ctx ExprContext, name string, args []any) (result any, err error) {
return functor.f(ctx, name, args)
}

53
function.go
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@ -42,59 +42,6 @@ func (functor *baseFunctor) GetFunc() ExprFunc {
return functor.info
}
// ---- Linking with Go functions
type golangFunctor struct {
baseFunctor
f FuncTemplate
}
func NewGolangFunctor(f FuncTemplate) *golangFunctor {
return &golangFunctor{f: f}
}
func (functor *golangFunctor) Invoke(ctx ExprContext, name string, args []any) (result any, err error) {
return functor.f(ctx, name, args)
}
// ---- Linking with Expr functions
type exprFunctor struct {
baseFunctor
params []ExprFuncParam
expr Expr
defCtx ExprContext
}
// func newExprFunctor(e Expr, params []string, ctx ExprContext) *exprFunctor {
// return &exprFunctor{expr: e, params: params, defCtx: ctx}
// }
func newExprFunctor(e Expr, params []ExprFuncParam, ctx ExprContext) *exprFunctor {
return &exprFunctor{expr: e, params: params, defCtx: ctx}
}
func (functor *exprFunctor) Invoke(ctx ExprContext, name string, args []any) (result any, err error) {
if functor.defCtx != nil {
ctx.Merge(functor.defCtx)
}
for i, p := range functor.params {
if i < len(args) {
arg := args[i]
if funcArg, ok := arg.(Functor); ok {
// ctx.RegisterFunc(p, functor, 0, -1)
paramSpecs := funcArg.GetParams()
ctx.RegisterFunc(p.Name(), funcArg, TypeAny, paramSpecs)
} else {
ctx.UnsafeSetVar(p.Name(), arg)
}
} else {
ctx.UnsafeSetVar(p.Name(), nil)
}
}
result, err = functor.expr.Eval(ctx)
return
}
// ---- Function Parameters
type paramFlags uint16