forked from MightyPork/crsn
buffer module, replacing stacks. TODO: docs, fix parsing of "numbers tuple" in mkbfv (consumed by the conditional branch parser)
parent
1f2dbaa81d
commit
ee59096821
GPG Key ID:
2C5FD5035250423D
@ -1,5 +1,5 @@ |
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[package] |
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name = "crsn_stacks" |
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name = "crsn_buf" |
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version = "0.1.0" |
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authors = ["Ondřej Hruška <ondra@ondrovo.com>"] |
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edition = "2018" |
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@ -0,0 +1,31 @@ |
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use crsn::asm::data::{Rd, RdObj, Wr}; |
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use crsn::asm::data::literal::Value; |
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|
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#[derive(Clone, Debug, PartialEq)] |
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pub enum BufValue { |
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Zeros(Rd), |
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Values(Vec<Rd>), |
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Chars(String), |
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} |
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|
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#[derive(Clone, Debug, PartialEq)] |
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pub enum BufOps { |
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New { dst: Wr, value: BufValue }, |
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|
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// Elementary ops
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Read { dst: Wr, obj: RdObj, idx: Rd }, |
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GetLen { dst: Wr, obj: RdObj }, |
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Write { obj: RdObj, idx: Rd, value: Rd }, |
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Insert { obj: RdObj, idx: Rd, value: Rd }, |
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Remove { dst: Wr, obj: RdObj, idx: Rd }, |
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|
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// Whole buffer ops
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Resize { obj: RdObj, len: Rd }, |
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Reverse { obj: RdObj }, |
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AppendBuf { obj: RdObj, obj2: RdObj }, |
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PrependBuf { obj: RdObj, obj2: RdObj }, |
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|
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// Stack-style ops
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Push { obj: RdObj, src: Rd }, |
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Pop { dst: Wr, obj: RdObj }, |
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} |
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@ -0,0 +1,269 @@ |
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use std::collections::{HashMap, VecDeque}; |
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|
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use crsn::asm::data::{Rd, RdObj, Wr}; |
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use crsn::asm::data::literal::Value; |
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use crsn::asm::instr::Cond; |
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use crsn::module::{EvalRes, OpTrait}; |
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use crsn::runtime::fault::Fault; |
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use crsn::runtime::run_thread::{state::RunState, ThreadInfo}; |
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use crsn::sexp; |
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use crsn::sexp::{Sexp, atom_qs}; |
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use crsn::utils::A; |
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|
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use crate::defs::{BufOps, BufValue}; |
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|
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#[derive(Debug, Default)] |
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struct ExtData { |
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store: HashMap<Value, VecDeque<Value>>, |
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} |
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|
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// TODO optimize and DRY
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|
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impl OpTrait for BufOps { |
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fn execute(&self, info: &ThreadInfo, state: &mut RunState) -> Result<EvalRes, Fault> { |
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let eres = EvalRes::default(); |
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match self { |
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BufOps::New { dst, value } => { |
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let id = info.unique_handle(); |
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|
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let que = match value { |
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BufValue::Zeros(len) => { |
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let len = state.read(*len)? as usize; |
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let mut que = VecDeque::with_capacity(len); |
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que.resize(len, 0); |
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que |
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} |
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BufValue::Values(vals) => { |
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let mut que = VecDeque::with_capacity(vals.len()); |
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for val in vals { |
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que.push_back(state.read(*val)?); |
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} |
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que |
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} |
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BufValue::Chars(string) => { |
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let mut que = VecDeque::new(); |
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for val in string.chars() { |
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que.push_back(val as Value); |
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} |
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que |
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} |
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}; |
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|
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let data: &mut ExtData = state.ext_mut(); |
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data.store.insert(id, que); |
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state.write(*dst, id)?; |
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} |
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|
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BufOps::Push { obj, src } => { |
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state.clear_status(); |
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let val = state.read(*src)?; |
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let handle = state.read_obj(*obj)?; |
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let stacks: &mut ExtData = state.ext_mut(); |
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let stack = stacks.store.get_mut(&handle).ok_or_else(|| Fault::ObjectNotExist(handle))?; |
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stack.push_back(val); |
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} |
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|
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BufOps::Pop { dst, obj } => { |
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state.clear_status(); |
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let handle = state.read_obj(*obj)?; |
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let stacks: &mut ExtData = state.ext_mut(); |
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let stack = stacks.store.get_mut(&handle).ok_or_else(|| Fault::ObjectNotExist(handle))?; |
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if let Some(val) = stack.pop_back() { |
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let empty = stack.is_empty(); |
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state.write(*dst, val)?; |
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state.update_status(val); |
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state.set_flag(Cond::Empty, empty); |
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} else { |
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state.set_flag(Cond::Empty, true); |
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state.set_flag(Cond::Overflow, true); |
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} |
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} |
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|
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BufOps::Read { dst, obj, idx } => { |
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state.clear_status(); |
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let handle = state.read_obj(*obj)?; |
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let idx = state.read(*idx)?; |
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let stacks: &mut ExtData = state.ext_mut(); |
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let stack = stacks.store.get(&handle).ok_or_else(|| Fault::ObjectNotExist(handle))?; |
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if let Some(val) = stack.get(idx as usize) { |
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let val = *val; |
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state.update_status(val); |
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state.write(*dst, val)?; |
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} else { |
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state.set_flag(Cond::Overflow, true); |
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} |
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} |
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|
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BufOps::GetLen { dst, obj } => { |
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state.clear_status(); |
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let handle = state.read_obj(*obj)?; |
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let stacks: &mut ExtData = state.ext_mut(); |
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let stack = stacks.store.get(&handle).ok_or_else(|| Fault::ObjectNotExist(handle))?; |
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let val = stack.len() as Value; |
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state.write(*dst, val)?; |
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state.update_status(val); |
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} |
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|
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BufOps::Write { obj, idx, value } => { |
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state.clear_status(); |
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let handle = state.read_obj(*obj)?; |
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let val = state.read(*value)?; |
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let idx = state.read(*idx)? as usize; |
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let stacks: &mut ExtData = state.ext_mut(); |
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let stack = stacks.store.get_mut(&handle).ok_or_else(|| Fault::ObjectNotExist(handle))?; |
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if idx < stack.len() { |
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stack[idx] = val; |
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} else if idx == stack.len() { |
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stack.push_back(val); |
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} else { |
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state.set_flag(Cond::Overflow, true); |
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} |
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} |
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|
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BufOps::Insert { obj, idx, value } => { |
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state.clear_status(); |
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let handle = state.read_obj(*obj)?; |
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let val = state.read(*value)?; |
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let idx = state.read(*idx)? as usize; |
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let stacks: &mut ExtData = state.ext_mut(); |
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let stack = stacks.store.get_mut(&handle).ok_or_else(|| Fault::ObjectNotExist(handle))?; |
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if idx < stack.len() { |
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stack.insert(idx, val); |
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} else if idx == stack.len() { |
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stack.push_back(val); |
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} else { |
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state.set_flag(Cond::Overflow, true); |
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} |
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} |
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BufOps::Remove { dst, obj, idx } => { |
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state.clear_status(); |
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let handle = state.read_obj(*obj)?; |
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let idx = state.read(*idx)? as usize; |
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let stacks: &mut ExtData = state.ext_mut(); |
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let stack = stacks.store.get_mut(&handle).ok_or_else(|| Fault::ObjectNotExist(handle))?; |
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if idx < stack.len() { |
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let val = stack.remove(idx).unwrap(); |
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let empty = stack.is_empty(); |
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state.update_status(val); |
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state.write(*dst, val)?; |
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state.set_flag(Cond::Empty, empty); |
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} else { |
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state.set_flag(Cond::Overflow, true); |
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} |
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} |
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BufOps::Resize { obj, len } => { |
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let handle = state.read_obj(*obj)?; |
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let len = state.read(*len)? as usize; |
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let stacks: &mut ExtData = state.ext_mut(); |
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let stack = stacks.store.get_mut(&handle).ok_or_else(|| Fault::ObjectNotExist(handle))?; |
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stack.resize(len, 0); |
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} |
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BufOps::Reverse { obj } => { |
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let handle = state.read_obj(*obj)?; |
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let stacks: &mut ExtData = state.ext_mut(); |
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let stack = stacks.store.get_mut(&handle).ok_or_else(|| Fault::ObjectNotExist(handle))?; |
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let len = stack.len(); |
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if len > 1 { |
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let mut start = 0; |
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let mut end = len - 1; |
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while start < end { |
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stack.swap(start, end); |
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start += 1; |
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end -= 1; |
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} |
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} |
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} |
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BufOps::AppendBuf { obj, obj2 } => { |
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let handle = state.read_obj(*obj)?; |
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let handle2 = state.read_obj(*obj2)?; |
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let stacks: &mut ExtData = state.ext_mut(); |
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let stack2 = stacks.store.get(&handle2).ok_or_else(|| Fault::ObjectNotExist(handle))?.clone(); |
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let stack = stacks.store.get_mut(&handle).ok_or_else(|| Fault::ObjectNotExist(handle))?; |
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stack.extend(stack2); |
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} |
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BufOps::PrependBuf { obj, obj2 } => { |
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let handle = state.read_obj(*obj)?; |
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let handle2 = state.read_obj(*obj2)?; |
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let stacks: &mut ExtData = state.ext_mut(); |
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let stack2 = stacks.store.get(&handle2).ok_or_else(|| Fault::ObjectNotExist(handle))?.clone(); |
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let stack = stacks.store.get_mut(&handle).ok_or_else(|| Fault::ObjectNotExist(handle))?; |
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for v in stack2.into_iter().rev() { |
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stack.push_front(v); |
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} |
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} |
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} |
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Ok(eres) |
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} |
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fn to_sexp(&self) -> Sexp { |
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match self { |
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BufOps::Push { obj, src } => sexp::list(&[A("push"), A(obj), A(src)]), |
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BufOps::Pop { dst, obj } => sexp::list(&[A("pop"), A(dst), A(obj)]), |
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BufOps::New { dst, value } => { |
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match value { |
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BufValue::Zeros(n) => { |
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sexp::list(&[A("mkbf"), A(dst), A(n)]) |
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} |
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BufValue::Values(vals) => { |
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let mut vals: Vec<_> = vals.iter().map(A).collect(); |
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vals.insert(0, A(dst)); |
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vals.insert(0, A("mkbfv")); |
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sexp::list(&vals) |
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} |
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BufValue::Chars(str) => { |
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sexp::list(&[A("mkbfv"), A(dst), atom_qs(str)]) |
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} |
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} |
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} |
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BufOps::Read { dst, obj, idx } => { |
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sexp::list(&[A("bfrd"), A(dst), A(obj), A(idx)]) |
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} |
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BufOps::GetLen { dst, obj } => { |
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sexp::list(&[A("bfsz"), A(dst), A(obj)]) |
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} |
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BufOps::Write { obj, idx, value } => { |
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sexp::list(&[A("bfwr"), A(obj), A(idx), A(value)]) |
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} |
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BufOps::Insert { obj, idx, value } => { |
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sexp::list(&[A("bfins"), A(obj), A(idx), A(value)]) |
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} |
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BufOps::Remove { dst, obj, idx } => { |
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sexp::list(&[A("bfrm"), A(dst), A(obj), A(idx)]) |
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} |
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BufOps::Resize { obj, len } => { |
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sexp::list(&[A("bfrsz"), A(obj), A(len)]) |
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} |
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BufOps::Reverse { obj } => { |
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sexp::list(&[A("bfrev"), A(obj)]) |
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} |
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BufOps::AppendBuf { obj, obj2 } => { |
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sexp::list(&[A("bfapp"), A(obj), A(obj2)]) |
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} |
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BufOps::PrependBuf { obj, obj2 } => { |
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sexp::list(&[A("bfprep"), A(obj), A(obj2)]) |
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} |
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} |
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} |
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} |
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pub(crate) fn drop_obj(state: &mut RunState, handle: Value) -> Result<Option<()>, Fault> { |
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let stacks: &mut ExtData = state.ext_mut(); |
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Ok(stacks.store.remove(&handle).map(|_| ())) |
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} |
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@ -0,0 +1,147 @@ |
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use crsn::asm::error::CrsnError; |
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use crsn::asm::instr::op::OpKind; |
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use crsn::asm::parse::arg_parser::TokenParser; |
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use crsn::module::ParseRes; |
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use crsn::sexp::{SourcePosition, Sexp, Atom}; |
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use crate::defs::{BufOps, BufValue}; |
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use crsn::asm::data::Rd; |
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use crsn::sexp; |
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use crsn::asm::parse::parse_data::parse_rd; |
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pub(crate) fn parse<'a>(_pos: &SourcePosition, keyword: &str, mut args: TokenParser<'a>) -> Result<ParseRes<'a, OpKind>, CrsnError> { |
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Ok(ParseRes::ext(match keyword { |
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"mkbf" => { |
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let dst = args.next_wr()?; |
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let len = if args.have_more() { |
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args.next_rd()? |
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} else { |
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Rd::immediate(0) |
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}; |
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BufOps::New { dst, value: BufValue::Zeros(len) } |
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} |
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"mkbfv" => { |
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let dst = args.next_wr()?; |
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let next = args.next_or_err()?; |
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match next { |
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Sexp::Atom(Atom::QS(s), _) => { |
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BufOps::New { |
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dst, |
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value: BufValue::Chars(s), |
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} |
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} |
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Sexp::List(list, _) => { |
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let mut vals = vec![]; |
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for v in list { |
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vals.push(parse_rd(v, args.pcx)?); |
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} |
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BufOps::New { |
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dst, |
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value: BufValue::Values(vals), |
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} |
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} |
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other => { |
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return Err(CrsnError::Parse("Expected quoted string or a tuple of values".into(), other.pos().clone())); |
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} |
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} |
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} |
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"bfrd" => { |
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let dst = args.next_wr()?; |
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let obj = args.next_rdobj()?; |
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let idx = args.next_rd()?; |
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BufOps::Read { dst, obj, idx } |
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} |
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"bfwr" => { |
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let obj = args.next_rdobj()?; |
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let idx = args.next_rd()?; |
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let value = args.next_rd()?; |
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BufOps::Write { obj, idx, value } |
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} |
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"bfsz" => { |
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let dst = args.next_wr()?; |
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let obj = args.next_rdobj()?; |
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BufOps::GetLen { dst, obj } |
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} |
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"bfins" => { |
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let obj = args.next_rdobj()?; |
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let idx = args.next_rd()?; |
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let value = args.next_rd()?; |
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BufOps::Insert { obj, idx, value } |
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} |
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|
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"bfrm" => { |
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let dst = args.next_wr()?; |
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let obj = args.next_rdobj()?; |
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let idx = args.next_rd()?; |
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BufOps::Remove { dst, obj, idx } |
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} |
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"bfpush" => { |
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BufOps::Push { |
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obj: args.next_rdobj()?, |
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src: args.next_rd()?, |
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} |
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} |
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|
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"bfpop" => { |
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BufOps::Pop { |
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dst: args.next_wr()?, |
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obj: args.next_rdobj()?, |
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} |
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} |
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|
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"bfrpush" => { |
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BufOps::Insert { |
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obj: args.next_rdobj()?, |
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idx: Rd::immediate(0), |
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value: args.next_rd()?, |
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} |
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} |
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|
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"bfrpop" => { |
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BufOps::Remove { |
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dst: args.next_wr()?, |
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obj: args.next_rdobj()?, |
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idx: Rd::immediate(0), |
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} |
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} |
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|
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"bfrsz" => { |
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BufOps::Resize { |
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obj: args.next_rdobj()?, |
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len: args.next_rd()?, |
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} |
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} |
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|
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"bfrev" => { |
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BufOps::Reverse { |
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obj: args.next_rdobj()?, |
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} |
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} |
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|
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"bfapp" => { |
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BufOps::AppendBuf { |
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obj: args.next_rdobj()?, |
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obj2: args.next_rdobj()?, |
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} |
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} |
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|
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"bfprep" => { |
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BufOps::PrependBuf { |
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obj: args.next_rdobj()?, |
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obj2: args.next_rdobj()?, |
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} |
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} |
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|
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_other => { |
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return Ok(ParseRes::Unknown(args)); |
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} |
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})) |
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} |
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@ -1,10 +0,0 @@ |
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use crsn::asm::data::{Rd, RdObj, Wr}; |
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|
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#[derive(Clone, Debug, Eq, PartialEq)] |
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pub enum StackOp { |
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NewStack { dst: Wr }, |
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Push { obj: RdObj, src: Rd }, |
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Pop { dst: Wr, obj: RdObj }, |
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ReversePush { obj: RdObj, src: Rd }, |
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ReversePop { dst: Wr, obj: RdObj }, |
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} |
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@ -1,108 +0,0 @@ |
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use std::collections::{HashMap, VecDeque}; |
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|
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use crsn::asm::data::{Rd, RdObj, Wr}; |
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use crsn::asm::data::literal::Value; |
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use crsn::asm::instr::Cond; |
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use crsn::module::{EvalRes, OpTrait}; |
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use crsn::runtime::fault::Fault; |
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use crsn::runtime::run_thread::{state::RunState, ThreadInfo}; |
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use crsn::sexp; |
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use crsn::sexp::Sexp; |
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use crsn::utils::A; |
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|
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use crate::defs::StackOp; |
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|
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#[derive(Debug, Default)] |
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struct Stacks { |
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store: HashMap<Value, VecDeque<Value>>, |
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} |
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|
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impl OpTrait for StackOp { |
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fn execute(&self, info: &ThreadInfo, state: &mut RunState) -> Result<EvalRes, Fault> { |
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let eres = EvalRes::default(); |
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match self { |
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StackOp::NewStack { dst } => { |
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let id = info.unique_handle(); |
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let stacks: &mut Stacks = state.ext_mut(); |
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stacks.store.insert(id, VecDeque::new()); |
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|
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state.write(*dst, id)?; |
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} |
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StackOp::Push { obj, src } => { |
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prepare_push(state, obj, src, |
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|stack, val| stack.push_back(val))?; |
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} |
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StackOp::ReversePush { obj, src } => { |
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prepare_push(state, obj, src, |
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|stack, val| stack.push_front(val))?; |
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} |
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StackOp::Pop { dst, obj } => { |
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prepare_pop(state, dst, obj, |
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|stack| stack.pop_back())?; |
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} |
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StackOp::ReversePop { dst, obj } => { |
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prepare_pop(state, dst, obj, |
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|stack| stack.pop_front())?; |
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} |
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} |
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|
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Ok(eres) |
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} |
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|
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fn to_sexp(&self) -> Sexp { |
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match self { |
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StackOp::NewStack { dst } => sexp::list(&[A("stack"), A(dst)]), |
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StackOp::Push { obj, src } => sexp::list(&[A("push"), A(obj), A(src)]), |
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StackOp::Pop { dst, obj } => sexp::list(&[A("pop"), A(dst), A(obj)]), |
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StackOp::ReversePush { obj, src } => sexp::list(&[A("rpush"), A(obj), A(src)]), |
||||
StackOp::ReversePop { dst, obj } => sexp::list(&[A("rpop"), A(dst), A(obj)]), |
||||
} |
||||
} |
||||
} |
||||
|
||||
|
||||
pub(crate) fn drop_obj(state: &mut RunState, handle: Value) -> Result<Option<()>, Fault> { |
||||
let stacks: &mut Stacks = state.ext_mut(); |
||||
Ok(stacks.store.remove(&handle).map(|_| ())) |
||||
} |
||||
|
||||
fn prepare_push(state: &mut RunState, obj: &RdObj, src: &Rd, pushfn: impl FnOnce(&mut VecDeque<Value>, Value) -> ()) -> Result<(), Fault> { |
||||
state.clear_status(); |
||||
let handle = state.read_obj(*obj)?; |
||||
let val = state.read(*src)?; |
||||
|
||||
let stacks: &mut Stacks = state.ext_mut(); |
||||
let mutable = stacks.store.get_mut(&handle) |
||||
.ok_or_else(|| Fault::ObjectNotExist(handle))?; |
||||
|
||||
pushfn(mutable, val); |
||||
Ok(()) |
||||
} |
||||
|
||||
fn prepare_pop(state: &mut RunState, dst: &Wr, obj: &RdObj, popfn: impl FnOnce(&mut VecDeque<Value>) -> Option<Value>) -> Result<(), Fault> { |
||||
state.clear_status(); |
||||
let handle = state.read_obj(*obj)?; |
||||
|
||||
let stacks: &mut Stacks = state.ext_mut(); |
||||
let stack = stacks.store.get_mut(&handle) |
||||
.ok_or_else(|| Fault::ObjectNotExist(handle))?; |
||||
|
||||
let val = popfn(stack); |
||||
|
||||
if stack.is_empty() { |
||||
state.set_flag(Cond::Zero, true); |
||||
} |
||||
|
||||
let val = match val { |
||||
None => { |
||||
state.set_flag(Cond::Overflow, true); |
||||
0 |
||||
} |
||||
Some(val) => { |
||||
val |
||||
} |
||||
}; |
||||
|
||||
state.write(*dst, val)?; |
||||
Ok(()) |
||||
} |
||||
@ -1,49 +0,0 @@ |
||||
use crsn::asm::error::CrsnError; |
||||
use crsn::asm::instr::op::OpKind; |
||||
use crsn::asm::parse::arg_parser::TokenParser; |
||||
use crsn::module::ParseRes; |
||||
use crsn::sexp::SourcePosition; |
||||
|
||||
use crate::defs::StackOp; |
||||
|
||||
pub(crate) fn parse<'a>(_pos: &SourcePosition, keyword: &str, mut args: TokenParser<'a>) -> Result<ParseRes<'a, OpKind>, CrsnError> { |
||||
Ok(ParseRes::ext(match keyword { |
||||
"stack" => { |
||||
StackOp::NewStack { |
||||
dst: args.next_wr()?, |
||||
} |
||||
} |
||||
|
||||
"push" => { |
||||
StackOp::Push { |
||||
obj: args.next_rdobj()?, |
||||
src: args.next_rd()?, |
||||
} |
||||
} |
||||
|
||||
"pop" => { |
||||
StackOp::Pop { |
||||
dst: args.next_wr()?, |
||||
obj: args.next_rdobj()?, |
||||
} |
||||
} |
||||
|
||||
"rpush" => { |
||||
StackOp::ReversePush { |
||||
obj: args.next_rdobj()?, |
||||
src: args.next_rd()?, |
||||
} |
||||
} |
||||
|
||||
"rpop" => { |
||||
StackOp::ReversePop { |
||||
dst: args.next_wr()?, |
||||
obj: args.next_rdobj()?, |
||||
} |
||||
} |
||||
|
||||
_other => { |
||||
return Ok(ParseRes::Unknown(args)); |
||||
} |
||||
})) |
||||
} |
||||
Loading…
Reference in new issue