58 lines
2.3 KiB
Rust
58 lines
2.3 KiB
Rust
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use super::*;
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use crate::box_trait::NyashBox;
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pub(super) fn try_handle_array_box(
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this: &mut MirInterpreter,
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dst: Option<ValueId>,
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box_val: ValueId,
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method: &str,
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args: &[ValueId],
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) -> Result<bool, VMError> {
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let recv = this.reg_load(box_val)?;
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let recv_box_any: Box<dyn NyashBox> = match recv.clone() {
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VMValue::BoxRef(b) => b.share_box(),
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other => other.to_nyash_box(),
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};
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if let Some(ab) = recv_box_any
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.as_any()
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.downcast_ref::<crate::boxes::array::ArrayBox>()
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{
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match method {
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"birth" => {
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// No-op constructor init
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if let Some(d) = dst { this.regs.insert(d, VMValue::Void); }
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return Ok(true);
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}
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"push" => {
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if args.len() != 1 { return Err(VMError::InvalidInstruction("push expects 1 arg".into())); }
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let val = this.reg_load(args[0])?.to_nyash_box();
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let _ = ab.push(val);
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if let Some(d) = dst { this.regs.insert(d, VMValue::Void); }
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return Ok(true);
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}
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"len" | "length" | "size" => {
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let ret = ab.length();
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if let Some(d) = dst { this.regs.insert(d, VMValue::from_nyash_box(ret)); }
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return Ok(true);
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}
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"get" => {
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if args.len() != 1 { return Err(VMError::InvalidInstruction("get expects 1 arg".into())); }
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let idx = this.reg_load(args[0])?.to_nyash_box();
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let ret = ab.get(idx);
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if let Some(d) = dst { this.regs.insert(d, VMValue::from_nyash_box(ret)); }
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return Ok(true);
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}
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"set" => {
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if args.len() != 2 { return Err(VMError::InvalidInstruction("set expects 2 args".into())); }
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let idx = this.reg_load(args[0])?.to_nyash_box();
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let val = this.reg_load(args[1])?.to_nyash_box();
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let _ = ab.set(idx, val);
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if let Some(d) = dst { this.regs.insert(d, VMValue::Void); }
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return Ok(true);
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}
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_ => {}
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}
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}
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Ok(false)
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}
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