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//! # LuaExpr - Trait Implementations
//!
//! This module contains trait implementations for `LuaExpr`.
//!
//! ## Implemented Traits
//!
//! - `Display`
//!
//! 🤖 Generated with [SplitRS](https://github.com/cool-japan/splitrs)
use crate::lcnf::*;
use super::types::LuaExpr;
use std::fmt;
impl fmt::Display for LuaExpr {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
LuaExpr::Nil => write!(f, "nil"),
LuaExpr::True => write!(f, "true"),
LuaExpr::False => write!(f, "false"),
LuaExpr::Int(n) => write!(f, "{}", n),
LuaExpr::Float(v) => {
if v.fract() == 0.0 && v.is_finite() {
write!(f, "{}.0", *v as i64)
} else {
write!(f, "{}", v)
}
}
LuaExpr::Str(s) => {
write!(f, "\"")?;
for c in s.chars() {
match c {
'"' => write!(f, "\\\"")?,
'\\' => write!(f, "\\\\")?,
'\n' => write!(f, "\\n")?,
'\r' => write!(f, "\\r")?,
'\t' => write!(f, "\\t")?,
c => write!(f, "{}", c)?,
}
}
write!(f, "\"")
}
LuaExpr::Var(name) => write!(f, "{}", name),
LuaExpr::BinOp { op, lhs, rhs } => write!(f, "({} {} {})", lhs, op, rhs),
LuaExpr::UnaryOp { op, operand } => write!(f, "({} {})", op, operand),
LuaExpr::Call { func, args } => {
write!(f, "{}(", func)?;
for (i, a) in args.iter().enumerate() {
if i > 0 {
write!(f, ", ")?;
}
write!(f, "{}", a)?;
}
write!(f, ")")
}
LuaExpr::MethodCall { obj, method, args } => {
write!(f, "{}:{}(", obj, method)?;
for (i, a) in args.iter().enumerate() {
if i > 0 {
write!(f, ", ")?;
}
write!(f, "{}", a)?;
}
write!(f, ")")
}
LuaExpr::TableConstructor(fields) => {
write!(f, "{{")?;
for (i, field) in fields.iter().enumerate() {
if i > 0 {
write!(f, ", ")?;
}
write!(f, "{}", field)?;
}
write!(f, "}}")
}
LuaExpr::IndexAccess { table, key } => write!(f, "{}[{}]", table, key),
LuaExpr::FieldAccess { table, field } => write!(f, "{}.{}", table, field),
LuaExpr::Lambda {
params,
vararg,
body,
} => {
write!(f, "function(")?;
for (i, p) in params.iter().enumerate() {
if i > 0 {
write!(f, ", ")?;
}
write!(f, "{}", p)?;
}
if *vararg {
if !params.is_empty() {
write!(f, ", ")?;
}
write!(f, "...")?;
}
writeln!(f, ")")?;
for stmt in body {
writeln!(f, " {}", stmt)?;
}
write!(f, "end")
}
LuaExpr::Ellipsis => write!(f, "..."),
}
}
}