uutils/awk
0
0
Fork 0
mirror of https://github.com/uutils/awk.git synced 2026-06-10 16:15:04 -07:00
Code Issues Packages Projects Releases Wiki Activity

interpreter: unary placing operations

Browse Source
This commit is contained in:
Guillem L. Jara
2026-05-27 18:16:46 +02:00
parent ecc7dcced6
commit 19d1b46ca2
1 changed files with 34 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
interpreter/src/ir/lower.rs
+34 -1
View File
@@ -8,7 +8,7 @@ use std::{borrow::Cow, mem::forget, ops::Deref};
use bumpalo::{Bump, collections::Vec};
use parser::{
Atom, BinaryOperator, BinaryPlaceOperator, Body, Expr, ExprNode, Place, SimpleStatement,
Statement, UnaryOperator, Variable,
Statement, UnaryOperator, UnaryPlaceOperator, Variable,
};
use crate::{
@@ -225,6 +225,39 @@ impl<'a> Code<'a> {
self.free_reg(lhs);
}
ExprNode::UnaryPlaceOperation(op, place) => {
let rhs = self.alloc_reg();
let one = self.register_const(Value::Float(1.));
self.bc.emit(Instruction::LoadConst((*rhs, one)));
self.load_place(dest, place);
let second_op = match op {
UnaryPlaceOperator::IncrementL | UnaryPlaceOperator::IncrementR => {
Instruction::Add
}
UnaryPlaceOperator::DecrementL | UnaryPlaceOperator::DecrementR => {
Instruction::Subtract
}
};
match op {
UnaryPlaceOperator::IncrementL | UnaryPlaceOperator::DecrementL => {
self.bc.emit(second_op((dest, dest, *rhs)));
self.store_place(place, dest);
}
UnaryPlaceOperator::IncrementR | UnaryPlaceOperator::DecrementR => {
// force dest to concrete num:
let tmp = self.alloc_reg();
let zero = self.register_const(Value::Float(0.));
self.bc.emit(Instruction::LoadConst((*tmp, zero)));
self.bc.emit(Instruction::Add((dest, dest, *tmp)));
self.bc.emit(second_op((*tmp, dest, *rhs)));
self.store_place(place, *tmp);
self.free_reg(tmp);
}
}
self.free_reg(rhs);
}
_ => todo!(),
},
}