Struct garden::model::Variable [−][src]
pub struct Variable { /* fields omitted */ }
Expand description
Config files can define a sequence of variables that are iteratively calculated. Variables can reference other variables in their Tree, Garden, and Configuration scopes.
The config values can contain either plain values, string ${expressions} that resolve against other Variables, or exec expressions that evaluate to a command whose stdout is captured and placed into the value of the variable.
An exec expression can use shell-like ${variable} references as which are substituted when evaluating the command, just like a regular string expression. An exec expression is denoted by using a “$ “ (dollar-sign followed by space) before the value. For example, using “$ echo foo” will place the value “foo” in the variable.
Implementations
impl Variable
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impl Variable
[src]pub fn new(expr: String, value: Option<String>) -> Self
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pub fn get_expr(&self) -> &String
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pub fn get_expr_mut(&mut self) -> &mut String
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pub fn set_expr(&mut self, expr: String)
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pub fn set_value(&self, value: String)
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pub fn get_value(&self) -> Option<&String>
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pub fn get_value(&self) -> Option<&String>
[src]Transform the RefCell<Option
pub fn reset(&self)
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Trait Implementations
Auto Trait Implementations
impl !RefUnwindSafe for Variable
impl Send for Variable
impl !Sync for Variable
impl Unpin for Variable
impl UnwindSafe for Variable
Blanket Implementations
impl<T> BorrowMut<T> for T where
T: ?Sized,
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impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]pub fn borrow_mut(&mut self) -> &mut T
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pub fn borrow_mut(&mut self) -> &mut T
[src]Mutably borrows from an owned value. Read more
impl<T> ToOwned for T where
T: Clone,
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impl<T> ToOwned for T where
T: Clone,
[src]type Owned = T
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn to_owned(&self) -> T
[src]Creates owned data from borrowed data, usually by cloning. Read more
pub fn clone_into(&self, target: &mut T)
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pub fn clone_into(&self, target: &mut T)
[src]🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more