58 lines
1.2 KiB
Go
58 lines
1.2 KiB
Go
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// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
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// All rights reserved.
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// operator-include.go
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package expr
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//-------- include term
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func newIncludeTerm(tk *Token) (inst *term) {
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return &term{
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tk: *tk,
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children: make([]*term, 0, 1),
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position: posPrefix,
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priority: priSign,
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evalFunc: evalInclude,
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}
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}
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func evalInclude(ctx ExprContext, self *term) (v any, err error) {
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var childValue any
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if childValue, err = self.evalPrefix(ctx); err != nil {
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return
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}
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count := 0
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if isList(childValue) {
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list, _ := childValue.([]any)
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for i, filePathSpec := range list {
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if filePath, ok := filePathSpec.(string); ok {
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if v, err = EvalFile(ctx, filePath); err == nil {
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count++
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} else {
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err = self.Errorf("can't load file %q", filePath)
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break
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}
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} else {
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err = self.Errorf("expected string at item nr %d, got %T", i+1, filePathSpec)
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break
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}
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}
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} else if isString(childValue) {
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filePath, _ := childValue.(string)
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v, err = EvalFile(ctx, filePath)
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} else {
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err = self.errIncompatibleType(childValue)
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}
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if err == nil {
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v = count
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}
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return
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}
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// init
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func init() {
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registerTermConstructor(SymKwInclude, newIncludeTerm)
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}
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