Stmt

Enum Stmt 

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pub enum Stmt {
Show 18 variants Expr(Expr), Print { args: Vec<Expr>, output: Option<OutputRedirect>, location: SourceLocation, }, Printf { format: Expr, args: Vec<Expr>, output: Option<OutputRedirect>, location: SourceLocation, }, If { condition: Expr, then_branch: Box<Stmt>, else_branch: Option<Box<Stmt>>, location: SourceLocation, }, While { condition: Expr, body: Box<Stmt>, location: SourceLocation, }, DoWhile { body: Box<Stmt>, condition: Expr, location: SourceLocation, }, For { init: Option<Box<Stmt>>, condition: Option<Expr>, update: Option<Expr>, body: Box<Stmt>, location: SourceLocation, }, ForIn { var: String, array: String, body: Box<Stmt>, location: SourceLocation, }, Block(Block), Break { location: SourceLocation, }, Continue { location: SourceLocation, }, Next { location: SourceLocation, }, Nextfile { location: SourceLocation, }, Exit { code: Option<Expr>, location: SourceLocation, }, Return { value: Option<Expr>, location: SourceLocation, }, Delete { array: String, index: Vec<Expr>, location: SourceLocation, }, Getline { var: Option<String>, input: Option<GetlineInput>, location: SourceLocation, }, Empty,
}
Expand description

Statement types

Variants§

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Expr(Expr)

Expression statement (e.g., function call, assignment)

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Print

Print statement: print expr, expr, …

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§args: Vec<Expr>
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Printf

Printf statement: printf format, expr, …

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§format: Expr
§args: Vec<Expr>
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If

If statement

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§condition: Expr
§then_branch: Box<Stmt>
§else_branch: Option<Box<Stmt>>
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While

While loop

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§condition: Expr
§body: Box<Stmt>
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DoWhile

Do-while loop

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§body: Box<Stmt>
§condition: Expr
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For

For loop (C-style)

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§init: Option<Box<Stmt>>
§condition: Option<Expr>
§update: Option<Expr>
§body: Box<Stmt>
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ForIn

For-in loop (array iteration)

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§array: String
§body: Box<Stmt>
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Block(Block)

Block of statements

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Break

Break statement

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Continue

Continue statement

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Next

Next statement (skip to next record)

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Nextfile

Nextfile statement (skip to next file)

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Exit

Exit statement

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§code: Option<Expr>
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Return

Return statement

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§value: Option<Expr>
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Delete

Delete statement: delete array[index]

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§array: String
§index: Vec<Expr>
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Getline

Getline statement (various forms)

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Empty

Empty statement (just a semicolon)

Trait Implementations§

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impl Clone for Stmt

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fn clone(&self) -> Stmt

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Stmt

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl Freeze for Stmt

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impl RefUnwindSafe for Stmt

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impl Send for Stmt

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impl Sync for Stmt

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impl Unpin for Stmt

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impl UnwindSafe for Stmt

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.