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moved scanner sources to package 'scan'

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This commit is contained in:
Celestino Amoroso
2026-05-03 14:19:17 +02:00
parent f63ff5953e
commit 7f34ccf955
66 changed files with 1793 additions and 1726 deletions
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operator-pre-inc-dec.go
+28 -28
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@@ -6,68 +6,68 @@ package expr
import (
"git.portale-stac.it/go-pkg/expr/kern"
"git.portale-stac.it/go-pkg/expr/scan"
)
// -------- pre increment term
func newPreIncTerm(tk *Token) *term {
return &term{
tk: *tk,
parent: nil,
children: make([]*term, 0, 1),
position: posPrefix,
priority: priIncDec,
evalFunc: evalPreInc,
func newPreIncTerm(tk *scan.Token) *scan.Term {
return &scan.Term{
Tk: *tk,
Children: make([]*scan.Term, 0, 1),
Position: scan.PosPrefix,
Priority: scan.PriIncDec,
EvalFunc: evalPreInc,
}
}
func evalPreInc(ctx kern.ExprContext, opTerm *term) (v any, err error) {
func evalPreInc(ctx kern.ExprContext, opTerm *scan.Term) (v any, err error) {
var childValue any
if childValue, err = opTerm.evalPrefix(ctx); err != nil {
if childValue, err = opTerm.EvalPrefix(ctx); err != nil {
return
}
if kern.IsInteger(childValue) && opTerm.children[0].symbol() == SymVariable {
if kern.IsInteger(childValue) && opTerm.Children[0].Symbol() == scan.SymVariable {
i := childValue.(int64) + 1
ctx.SetVar(opTerm.children[0].Source(), i)
ctx.SetVar(opTerm.Children[0].Source(), i)
v = i
} else {
err = opTerm.errIncompatiblePrefixPostfixType(childValue)
err = opTerm.ErrIncompatiblePrefixPostfixType(childValue)
}
return
}
// -------- pre decrement term
func newPreDecTerm(tk *Token) *term {
return &term{
tk: *tk,
parent: nil,
children: make([]*term, 0, 1),
position: posPrefix,
priority: priIncDec,
evalFunc: evalPreDec,
func newPreDecTerm(tk *scan.Token) *scan.Term {
return &scan.Term{
Tk: *tk,
Parent: nil,
Children: make([]*scan.Term, 0, 1),
Position: scan.PosPrefix,
Priority: scan.PriIncDec,
EvalFunc: evalPreDec,
}
}
func evalPreDec(ctx kern.ExprContext, opTerm *term) (v any, err error) {
func evalPreDec(ctx kern.ExprContext, opTerm *scan.Term) (v any, err error) {
var childValue any
if childValue, err = opTerm.evalPrefix(ctx); err != nil {
if childValue, err = opTerm.EvalPrefix(ctx); err != nil {
return
}
if kern.IsInteger(childValue) && opTerm.children[0].symbol() == SymVariable {
if kern.IsInteger(childValue) && opTerm.Children[0].Symbol() == scan.SymVariable {
i := childValue.(int64) - 1
ctx.SetVar(opTerm.children[0].Source(), i)
ctx.SetVar(opTerm.Children[0].Source(), i)
v = i
} else {
err = opTerm.errIncompatiblePrefixPostfixType(childValue)
err = opTerm.ErrIncompatiblePrefixPostfixType(childValue)
}
return
}
// init
func init() {
registerTermConstructor(SymPreInc, newPreIncTerm)
registerTermConstructor(SymPreDec, newPreDecTerm)
scan.RegisterTermConstructor(scan.SymPreInc, newPreIncTerm)
scan.RegisterTermConstructor(scan.SymPreDec, newPreDecTerm)
}