fn add_assembly(&mut self, location: Location, assembly: Assembly) -> Result<(), CompileError> {
        self.label_count = assembly.label_count;

        self.required_functions.extend(assembly.required_functions);

        for (pos, (inst, span)) in assembly.instructions.into_iter().enumerate() {
            let mut comment = None;
            let label = assembly.labels_rev.get(&pos).copied();

            match inst {
                AssemblyInst::Jump { label } => {
                    comment = Some(format!("label:{}", label));
                    let offset = translate_offset(span, pos, label, &assembly.labels)?;
                    self.instructions.push(Inst::Jump { offset });
                }
                AssemblyInst::JumpIf { label } => {
                    comment = Some(format!("label:{}", label));
                    let offset = translate_offset(span, pos, label, &assembly.labels)?;
                    self.instructions.push(Inst::JumpIf { offset });
                }
                AssemblyInst::JumpIfOrPop { label } => {
                    comment = Some(format!("label:{}", label));
                    let offset = translate_offset(span, pos, label, &assembly.labels)?;
                    self.instructions.push(Inst::JumpIfOrPop { offset });
                }
                AssemblyInst::JumpIfNotOrPop { label } => {
                    comment = Some(format!("label:{}", label));
                    let offset = translate_offset(span, pos, label, &assembly.labels)?;
                    self.instructions.push(Inst::JumpIfNotOrPop { offset });
                }
                AssemblyInst::JumpIfBranch { branch, label } => {
                    comment = Some(format!("label:{}", label));
                    let offset = translate_offset(span, pos, label, &assembly.labels)?;
                    self.instructions
                        .push(Inst::JumpIfBranch { branch, offset });
                }
                AssemblyInst::PopAndJumpIfNot { count, label } => {
                    comment = Some(format!("label:{}", label));
                    let offset = translate_offset(span, pos, label, &assembly.labels)?;
                    self.instructions
                        .push(Inst::PopAndJumpIfNot { count, offset });
                }
                AssemblyInst::IterNext { offset, label } => {
                    comment = Some(format!("label:{}", label));
                    let jump = translate_offset(span, pos, label, &assembly.labels)?;
                    self.instructions.push(Inst::IterNext { offset, jump });
                }
                AssemblyInst::Raw { raw } => {
                    self.instructions.push(raw);
                }
            }

            if let Some(comments) = assembly.comments.get(&pos) {
                let actual = comment
                    .take()
                    .into_iter()
                    .chain(comments.iter().cloned())
                    .collect::<Vec<_>>()
                    .join("; ");
                comment = Some(actual)
            }

            let debug = self.debug.get_or_insert_with(Default::default);

            debug.instructions.push(DebugInst {
                source_id: location.source_id,
                span,
                comment,
                label: label.map(Label::into_owned),
            });
        }

        return Ok(());

        fn translate_offset(
            span: Span,
            base: usize,
            label: Label,
            labels: &HashMap<Label, usize>,
        ) -> Result<isize, CompileError> {
            use std::convert::TryFrom as _;

            let offset = labels
                .get(&label)
                .copied()
                .ok_or_else(|| CompileError::new(span, CompileErrorKind::MissingLabel { label }))?;

            let base = isize::try_from(base)
                .map_err(|_| CompileError::new(span, CompileErrorKind::BaseOverflow))?;
            let offset = isize::try_from(offset)
                .map_err(|_| CompileError::new(span, CompileErrorKind::OffsetOverflow))?;

            let (base, _) = base.overflowing_add(1);
            let (offset, _) = offset.overflowing_sub(base);
            Ok(offset)
        }
    }
/// Translate the given assembly into instructions.
Translate the given assembly into instructions.
Translate the given assembly into instructions .
fn add_assembly(&mut self, location: Location, assembly: Assembly) -> Result<(), CompileError> {
        self.label_count = assembly.label_count;
        self.required_functions.extend(assembly.required_functions);
        for (pos, (inst, span)) in assembly.instructions.into_iter().enumerate() {
            let mut comment = None;
            let label = assembly.labels_rev.get(&pos).copied();
            match inst {
                AssemblyInst::Jump { label } => {
                    comment = Some(format!("label:{}", label));
                    let offset = translate_offset(span, pos, label, &assembly.labels)?;
                    self.instructions.push(Inst::Jump { offset });
                }
                AssemblyInst::JumpIf { label } => {
                    comment = Some(format!("label:{}", label));
                    let offset = translate_offset(span, pos, label, &assembly.labels)?;
                    self.instructions.push(Inst::JumpIf { offset });
                }
                AssemblyInst::JumpIfOrPop { label } => {
                    comment = Some(format!("label:{}", label));
                    let offset = translate_offset(span, pos, label, &assembly.labels)?;
                    self.instructions.push(Inst::JumpIfOrPop { offset });
                }
                AssemblyInst::JumpIfNotOrPop { label } => {
                    comment = Some(format!("label:{}", label));
                    let offset = translate_offset(span, pos, label, &assembly.labels)?;
                    self.instructions.push(Inst::JumpIfNotOrPop { offset });
                }
                AssemblyInst::JumpIfBranch { branch, label } => {
                    comment = Some(format!("label:{}", label));
                    let offset = translate_offset(span, pos, label, &assembly.labels)?;
                    self.instructions
                        .push(Inst::JumpIfBranch { branch, offset });
                }
                AssemblyInst::PopAndJumpIfNot { count, label } => {
                    comment = Some(format!("label:{}", label));
                    let offset = translate_offset(span, pos, label, &assembly.labels)?;
                    self.instructions
                        .push(Inst::PopAndJumpIfNot { count, offset });
                }
                AssemblyInst::IterNext { offset, label } => {
                    comment = Some(format!("label:{}", label));
                    let jump = translate_offset(span, pos, label, &assembly.labels)?;
                    self.instructions.push(Inst::IterNext { offset, jump });
                }
                AssemblyInst::Raw { raw } => {
                    self.instructions.push(raw);
                }
            }
            if let Some(comments) = assembly.comments.get(&pos) {
                let actual = comment
                    .take()
                    .into_iter()
                    .chain(comments.iter().cloned())
                    .collect::<Vec<_>>()
                    .join("; ");
                comment = Some(actual)
            }
            let debug = self.debug.get_or_insert_with(Default::default);
            debug.instructions.push(DebugInst {
                source_id: location.source_id,
                span,
                comment,
                label: label.map(Label::into_owned),
            });
        }
        return Ok(());
        fn translate_offset(
            span: Span,
            base: usize,
            label: Label,
            labels: &HashMap<Label, usize>,
        ) -> Result<isize, CompileError> {
            use std::convert::TryFrom as _;
            let offset = labels
                .get(&label)
                .copied()
                .ok_or_else(|| CompileError::new(span, CompileErrorKind::MissingLabel { label }))?;
            let base = isize::try_from(base)
                .map_err(|_| CompileError::new(span, CompileErrorKind::BaseOverflow))?;
            let offset = isize::try_from(offset)
                .map_err(|_| CompileError::new(span, CompileErrorKind::OffsetOverflow))?;
            let (base, _) = base.overflowing_add(1);
            let (offset, _) = offset.overflowing_sub(base);
            Ok(offset)
        }
    }
fn add_assembly ( & mut self , location : Location , assembly : Assembly ) -> Result < ( ) , CompileError > { self . label_count = assembly . label_count ; self . required_functions . extend ( assembly . required_functions ) ; for ( pos , ( inst , span ) ) in assembly . instructions . into_iter ( ) . enumerate ( ) { let mut comment = None ; let label = assembly . labels_rev . get ( & pos ) . copied ( ) ; match inst { AssemblyInst :: Jump { label } => { comment = Some ( format ! ( " " label ) ) ; let offset = translate_offset ( span , pos , label , & assembly . labels ) ? ; self . instructions . push ( Inst :: Jump { offset } ) ; } AssemblyInst :: JumpIf { label } => { comment = Some ( format ! ( " " label ) ) ; let offset = translate_offset ( span , pos , label , & assembly . labels ) ? ; self . instructions . push ( Inst :: JumpIf { offset } ) ; } AssemblyInst :: JumpIfOrPop { label } => { comment = Some ( format ! ( " " label ) ) ; let offset = translate_offset ( span , pos , label , & assembly . labels ) ? ; self . instructions . push ( Inst :: JumpIfOrPop { offset } ) ; } AssemblyInst :: JumpIfNotOrPop { label } => { comment = Some ( format ! ( " " label ) ) ; let offset = translate_offset ( span , pos , label , & assembly . labels ) ? ; self . instructions . push ( Inst :: JumpIfNotOrPop { offset } ) ; } AssemblyInst :: JumpIfBranch { branch , label } => { comment = Some ( format ! ( " " label ) ) ; let offset = translate_offset ( span , pos , label , & assembly . labels ) ? ; self . instructions . push ( Inst :: JumpIfBranch { branch , offset } ) ; } AssemblyInst :: PopAndJumpIfNot { count , label } => { comment = Some ( format ! ( " " label ) ) ; let offset = translate_offset ( span , pos , label , & assembly . labels ) ? ; self . instructions . push ( Inst :: PopAndJumpIfNot { count , offset } ) ; } AssemblyInst :: IterNext { offset , label } => { comment = Some ( format ! ( " " label ) ) ; let jump = translate_offset ( span , pos , label , & assembly . labels ) ? ; self . instructions . push ( Inst :: IterNext { offset , jump } ) ; } AssemblyInst :: Raw { raw } => { self . instructions . push ( raw ) ; } } if let Some ( comments ) = assembly . comments . get ( & pos ) { let actual = comment . take ( ) . into_iter ( ) . chain ( comments . iter ( ) . cloned ( ) ) . collect :: < Vec < _ > > ( ) . join ( " " ) ; comment = Some ( actual ) } let debug = self . debug . get_or_insert_with ( Default :: default ) ; debug . instructions . push ( DebugInst { source_id : location . source_id , span , comment , label : label . map ( Label :: into_owned ) , } ) ; } return Ok ( ( ) ) ; fn translate_offset ( span : Span , base : usize , label : Label , labels : & HashMap < Label , usize > , ) -> Result < isize , CompileError > { use std :: convert :: TryFrom as _ ; let offset = labels . get ( & label ) . copied ( ) . ok_or_else ( | | CompileError :: new ( span , CompileErrorKind :: MissingLabel { label } ) ) ? ; let base = isize :: try_from ( base ) . map_err ( | _ | CompileError :: new ( span , CompileErrorKind :: BaseOverflow ) ) ? ; let offset = isize :: try_from ( offset ) . map_err ( | _ | CompileError :: new ( span , CompileErrorKind :: OffsetOverflow ) ) ? ; let ( base , _ ) = base . overflowing_add ( 1 ) ; let ( offset , _ ) = offset . overflowing_sub ( base ) ; Ok ( offset ) } }
Translate the given assembly into instructions.
Translate the given assembly into instructions .
&mut self
location
Location
assembly
Assembly
&mut self
location
Location
assembly
Assembly