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use std::fmt;
use syntree_layout::{Layouter, Visualize};
#[derive(Copy, Clone, Debug)]
enum Ast {
Calc,
CalcLst1,
CalcLst1Itm1,
Instruction,
Assignment,
AssignItem,
Id,
AssignOp,
LocigalOr,
LocigalAnd,
BitwiseOr,
BitwiseAnd,
Equality,
Relational,
BitwiseShift,
Sum,
Mult,
Power,
Factor,
Number,
MultLst1,
MultLst1Itm1,
MultItem,
MultOp,
SumLst1,
SumLst1Itm1,
SumItem,
AddOp,
Plus,
Tok(&'static str),
}
impl Visualize for Ast {
fn visualize(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let s = match self {
Ast::Calc => "calc",
Ast::CalcLst1 => "calc_lst1",
Ast::CalcLst1Itm1 => "calc_lst1_itm1",
Ast::Instruction => "instruction",
Ast::Assignment => "assignment",
Ast::AssignItem => "assign_item",
Ast::Id => "id",
Ast::AssignOp => "assign_op",
Ast::LocigalOr => "locigal_or",
Ast::LocigalAnd => "locigal_and",
Ast::BitwiseOr => "bitwise_or",
Ast::BitwiseAnd => "bitwise_and",
Ast::Equality => "equality",
Ast::Relational => "relational",
Ast::BitwiseShift => "bitwise_shift",
Ast::Sum => "sum",
Ast::Mult => "mult",
Ast::Power => "power",
Ast::Factor => "factor",
Ast::Number => "number",
Ast::MultLst1 => "mult_lst1",
Ast::MultLst1Itm1 => "mult_lst1_itm1",
Ast::MultItem => "mult_item",
Ast::MultOp => "mult_op",
Ast::SumLst1 => "sum_lst1",
Ast::SumLst1Itm1 => "sum_lst1_itm1",
Ast::SumItem => "sum_item",
Ast::AddOp => "add_op",
Ast::Plus => "plus",
Ast::Tok(s) => s,
};
write!(f, "{s}")
}
fn emphasize(&self) -> bool {
matches!(self, Ast::Tok(_))
}
}
fn main() -> std::result::Result<(), anyhow::Error> {
let tree = syntree::tree! {
Ast::Calc => {
Ast::CalcLst1 => {
Ast::CalcLst1Itm1 => {
Ast::Instruction => {
Ast::Assignment => {
Ast::AssignItem => {
Ast::Id => { (Ast::Tok("c"), 1) },
Ast::AssignOp => { (Ast::Tok("="), 1) },
},
Ast::LocigalOr => {
Ast::LocigalAnd => {
Ast::BitwiseOr => {
Ast::BitwiseAnd => {
Ast::Equality => {
Ast::Relational => {
Ast::BitwiseShift => {
Ast::Sum => {
Ast::Mult => {
Ast::Power => {
Ast::Factor => {
Ast::Number => { (Ast::Tok("2"), 1) },
}
},
Ast::MultLst1 => {
Ast::MultLst1Itm1 => {
Ast::MultItem => {
Ast::MultOp => { (Ast::Tok("*"), 1) },
Ast::Power => {
Ast::Factor => {
Ast::Number => { (Ast::Tok("4"), 1) },
}
}
}
}
}
},
Ast::SumLst1 => {
Ast::SumLst1Itm1 => {
Ast::SumItem => {
Ast::AddOp => {
Ast::Plus => { (Ast::Tok("+"), 1) }
},
Ast::Mult => {
Ast::Power => {
Ast::Factor => {
Ast::Number => { (Ast::Tok("2"), 1) },
}
}
}
}
}
}
}
}
}
}
}
}
}
}
},
},
(Ast::Tok(";"), 1)
}
}
}
};
Layouter::new(&tree)
.with_file_path("examples/example2.svg")
.embed_with_visualize()
.map_err(|e| anyhow::anyhow!(e))?
.write()
.map_err(|e| anyhow::anyhow!(e))
}