go-pkg/expr
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moved a subset of source file to the kern package

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This commit is contained in:
Celestino Amoroso
2026-04-27 19:43:37 +02:00
parent f100adead3
commit 4d910dd069
107 changed files with 2080 additions and 1380 deletions
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operator-default.go
+20 -16
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@@ -4,6 +4,10 @@
// operator-default.go
package expr
import (
"git.portale-stac.it/go-pkg/expr/kern"
)
//-------- default term
func newDefaultTerm(tk *Token) (inst *term) {
@@ -16,7 +20,7 @@ func newDefaultTerm(tk *Token) (inst *term) {
}
}
func evalDefault(ctx ExprContext, opTerm *term) (v any, err error) {
func evalDefault(ctx kern.ExprContext, opTerm *term) (v any, err error) {
var rightValue any
if err = opTerm.checkOperands(); err != nil {
@@ -26,13 +30,13 @@ func evalDefault(ctx ExprContext, opTerm *term) (v any, err error) {
leftTerm := opTerm.children[0]
if leftTerm.tk.Sym != SymVariable {
// err = leftTerm.Errorf("left operand of %q must be a variable", self.tk.source)
err = ErrLeftOperandMustBeVariable(leftTerm, opTerm)
err = kern.ErrLeftOperandMustBeVariable(leftTerm, opTerm)
return
}
if leftValue, exists := ctx.GetVar(leftTerm.source()); exists {
if leftValue, exists := ctx.GetVar(leftTerm.Source()); exists {
v = leftValue
} else if rightValue, err = opTerm.children[1].compute(ctx); err == nil {
} else if rightValue, err = opTerm.children[1].Compute(ctx); err == nil {
v = rightValue
}
return
@@ -50,7 +54,7 @@ func newAlternateTerm(tk *Token) (inst *term) {
}
}
func evalAlternate(ctx ExprContext, opTerm *term) (v any, err error) {
func evalAlternate(ctx kern.ExprContext, opTerm *term) (v any, err error) {
var rightValue any
if err = opTerm.checkOperands(); err != nil {
@@ -60,12 +64,12 @@ func evalAlternate(ctx ExprContext, opTerm *term) (v any, err error) {
leftTerm := opTerm.children[0]
if leftTerm.tk.Sym != SymVariable {
// err = leftTerm.Errorf("left operand of %q must be a variable", self.tk.source)
err = ErrLeftOperandMustBeVariable(leftTerm, opTerm)
err = kern.ErrLeftOperandMustBeVariable(leftTerm, opTerm)
return
}
if leftValue, exists := ctx.GetVar(leftTerm.source()); exists && leftValue != nil {
if rightValue, err = opTerm.children[1].compute(ctx); err == nil {
if leftValue, exists := ctx.GetVar(leftTerm.Source()); exists && leftValue != nil {
if rightValue, err = opTerm.children[1].Compute(ctx); err == nil {
v = rightValue
}
} else {
@@ -86,7 +90,7 @@ func newDefaultAssignTerm(tk *Token) (inst *term) {
}
}
func evalAssignDefault(ctx ExprContext, opTerm *term) (v any, err error) {
func evalAssignDefault(ctx kern.ExprContext, opTerm *term) (v any, err error) {
var rightValue any
if err = opTerm.checkOperands(); err != nil {
@@ -96,21 +100,21 @@ func evalAssignDefault(ctx ExprContext, opTerm *term) (v any, err error) {
leftTerm := opTerm.children[0]
if leftTerm.tk.Sym != SymVariable {
// err = leftTerm.Errorf("left operand of %q must be a variable", self.tk.source)
err = ErrLeftOperandMustBeVariable(leftTerm, opTerm)
err = kern.ErrLeftOperandMustBeVariable(leftTerm, opTerm)
return
}
if leftValue, exists := ctx.GetVar(leftTerm.source()); exists {
if leftValue, exists := ctx.GetVar(leftTerm.Source()); exists {
v = leftValue
} else if rightValue, err = opTerm.children[1].compute(ctx); err == nil {
if functor, ok := rightValue.(Functor); ok {
} else if rightValue, err = opTerm.children[1].Compute(ctx); err == nil {
if functor, ok := rightValue.(kern.Functor); ok {
//ctx.RegisterFunc(leftTerm.source(), functor, 0, -1)
ctx.RegisterFunc(leftTerm.source(), functor, TypeAny, []ExprFuncParam{
NewFuncParamFlag(ParamValue, PfDefault|PfRepeat),
ctx.RegisterFunc(leftTerm.Source(), functor, kern.TypeAny, []kern.ExprFuncParam{
NewFuncParamFlag(kern.ParamValue, PfDefault|PfRepeat),
})
} else {
v = rightValue
ctx.UnsafeSetVar(leftTerm.source(), rightValue)
ctx.UnsafeSetVar(leftTerm.Source(), rightValue)
}
}
return