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Stmt

Enum Stmt

pub enum Stmt {
    Object {
        label: Option<Label>,
        object: Object,
    },
    Place {
        label: Label,
        pos: Position,
    },
    Assign(Vec<Assignment>),
    Direction(Dir),
    Group(Vec<Stmt>),
    Animate(Animate),
    If {
        cond: Expr,
        then_body: Body,
        else_body: Option<Body>,
    },
    For {
        var: String,
        subscript: Option<Expr>,
        from: Expr,
        to: Expr,
        by: Expr,
        mult: bool,
        body: Body,
    },
    Print(PrintItem),
    Exec {
        command: StringExpr,
        arg_frame: Option<Vec<Vec<Spanned>>>,
    },
    Reset(Vec<EnvVar>),
}

Expand description

A top-level element.

Variants§

Object

A drawn object, optionally labelled (Start: box …).

Fields

§label: Option<Label>

§object: Object

Place

Label: position — names a point without drawing.

Fields

§label: Label

§pos: Position

Assign(Vec<Assignment>)

One or more comma-separated assignments.

Direction(Dir)

A bare direction change (up / down / left / right).

Group(Vec<Stmt>)

{ … } grouping block (local scope, no bounding object).

Animate(Animate)

rpic animation directive (extension; see Animate).

If

if <cond> then { … } [else { … }]. Bodies are deferred raw tokens.

Fields

§cond: Expr

§then_body: Body

§else_body: Option<Body>

For

for v = from to to [by [*] step] do { … }. Body is deferred raw tokens.

Fields

§var: String

§subscript: Option<Expr>

§from: Expr

§to: Expr

§by: Expr

§mult: bool

by * multiplies instead of adds.

§body: Body

Print(PrintItem)

print … (evaluated for diagnostics; no drawing effect).

Exec

exec <string> — evaluate generated pic source in the current state.

Fields

§command: StringExpr

§arg_frame: Option<Vec<Vec<Spanned>>>

Reset(Vec<EnvVar>)

reset (all) or reset a, b, … — restore environment variables.

Trait Implementations§

impl Clone for Stmt

fn clone(&self) -> Stmt

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl Debug for Stmt

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

Formats the value using the given formatter. Read more

impl PartialEq for Stmt

fn eq(&self, other: &Stmt) -> bool

Tests for self and other values to be equal, and is used by ==.

1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Stmt

Auto Trait Implementations§

impl Freeze for Stmt

impl RefUnwindSafe for Stmt

impl Send for Stmt

impl Sync for Stmt

impl Unpin for Stmt

impl UnsafeUnpin for Stmt

impl UnwindSafe for Stmt

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more

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

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

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

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

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

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.