31 lines
456 B
Go
31 lines
456 B
Go
package cmdlang
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import (
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"context"
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"strings"
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)
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type Inst struct {
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rootEC *evalCtx
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}
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func New() *Inst {
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rootEC := evalCtx{}
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rootEC.addCmd("echo", invokableFunc(echoBuiltin))
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return &Inst{
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rootEC: &rootEC,
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}
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}
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// TODO: return value?
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func (inst *Inst) Eval(ctx context.Context, expr string) error {
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ast, err := parse(strings.NewReader(expr))
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if err != nil {
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return err
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}
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eval := evaluator{}
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return eval.evaluate(ctx, inst.rootEC, ast)
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}
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