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31 lines
771 B
31 lines
771 B
use std::error::Error;
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use std::fmt::{self, Display};
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use symbols::{Action, OwnedSymbolAction, Symbol, SymbolAction, SymbolRunner};
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pub struct NoopSymbol;
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impl Symbol for NoopSymbol {
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fn target_reached(&self) -> Result<bool, Box<dyn Error>> {
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Ok(true)
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}
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fn execute(&self) -> Result<(), Box<dyn Error>> {
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Ok(())
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}
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fn as_action<'a>(&'a self, runner: &'a dyn SymbolRunner) -> Box<dyn Action + 'a> {
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Box::new(SymbolAction::new(runner, self))
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}
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fn into_action<'a>(self: Box<Self>, runner: &'a dyn SymbolRunner) -> Box<dyn Action + 'a>
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where
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Self: 'a,
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{
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Box::new(OwnedSymbolAction::new(runner, *self))
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}
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}
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impl Display for NoopSymbol {
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fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
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write!(f, "Noop")
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}
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}
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