Enum Statement 

pub enum Statement {
    Expression(Expression),
    Return(Option<Expression>),
    Block(Vec<Statement>),
    If {
        condition: Expression,
        then_branch: Box<Statement>,
        else_branch: Option<Box<Statement>>,
    },
    While {
        condition: Expression,
        body: Box<Statement>,
    },
    For {
        init: Option<Box<Statement>>,
        condition: Option<Expression>,
        update: Option<Expression>,
        body: Box<Statement>,
    },
    Foreach {
        item_type: String,
        item_name: String,
        iterable: Expression,
        body: Box<Statement>,
    },
    LocalVariable {
        type: String,
        name: String,
        initializer: Option<Expression>,
    },
    Break,
    Continue,
}

语句

Variants

Expression(Expression)

表达式语句

Return(Option<Expression>)

返回语句

Block(Vec<Statement>)

块语句

If

条件判断

Fields

condition: Expression

then_branch: Box<Statement>

else_branch: Option<Box<Statement>>

While

While 循环

Fields

condition: Expression

body: Box<Statement>

For

For 循环

Fields

init: Option<Box<Statement>>

condition: Option<Expression>

update: Option<Expression>

body: Box<Statement>

Foreach

Foreach 循环

Fields

item_type: String

item_name: String

iterable: Expression

body: Box<Statement>

LocalVariable

变量声明语句

Fields

type: String

name: String

initializer: Option<Expression>

Break

Break

Continue

Continue

Trait Implementations

impl Clone for Statement

fn clone(&self) -> Statement

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Statement

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Statement

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Statement

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

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

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 Serialize for Statement

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Statement