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use crate::BinaryOp; use crate::Function; use serde::Serialize; use tusk_lexer::TokenType; #[derive(Serialize, Debug, Clone, PartialEq)] pub enum Expression { True, False, Null, String(String), Integer(i64), Float(f64), Variable(String), TypedVariable(String, String), Identifier(String), Binary(Box<Expression>, BinaryOp, Box<Expression>), Assign(Box<Expression>, Box<Expression>), Concat(Box<Expression>, Box<Expression>), Array(Vec<Expression>), ArrayAccess(Box<Expression>, Option<Box<Expression>>), ArrayItem { key: Box<Expression>, value: Box<Expression> }, PropertyAccess(Box<Expression>, Box<Expression>), New { class: Box<Expression>, args: Vec<Expression>, }, Call { target: Box<Expression>, args: Vec<Expression>, }, MethodCall { target: Box<Expression>, method: Box<Expression>, args: Vec<Expression> }, Closure(Function), Unary(Box<Expression>), Negate(Box<Expression>), BitwiseNot(Box<Expression>), } impl Expression { pub fn make_infix(lhs: Expression, operator: &TokenType, rhs: Expression) -> Self { use TokenType::*; let lhs = Box::new(lhs); let rhs = Box::new(rhs); match *operator { Plus | Minus | Asterisk | Slash | Percent | GreaterThan | GreaterThanEquals | LessThan | LessThanEquals | BitwiseAnd | BitwiseOr | BitwiseLeftShift | BitwiseRightShift | BitwiseXor | And | Or => Self::Binary(lhs, BinaryOp::from(*operator), rhs), Period => Self::Concat(lhs, rhs), DoubleArrow => Self::ArrayItem { key: lhs, value: rhs }, Equals => Self::Assign(lhs, rhs), _ => unimplemented!(), } } } impl From<bool> for Expression { fn from(value: bool) -> Self { match value { true => Self::True, false => Self::False, } } }