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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,210 @@ | ||
| use crate::analyzer_error::AnalyzerError; | ||
| use crate::symbol::{SymbolKind, TypeKind}; | ||
| use crate::symbol_table; | ||
| use veryl_parser::veryl_grammar_trait::*; | ||
| use veryl_parser::veryl_walker::{Handler, HandlerPoint}; | ||
| use veryl_parser::ParolError; | ||
|
|
||
| #[derive(Default)] | ||
| pub struct CheckClockReset<'a> { | ||
| pub errors: Vec<AnalyzerError>, | ||
| text: &'a str, | ||
| point: HandlerPoint, | ||
| in_always_ff: bool, | ||
| in_if_reset: bool, | ||
| if_reset_brace: usize, | ||
| if_reset_exist: bool, | ||
| n_of_select: usize, | ||
| } | ||
|
|
||
| impl<'a> CheckClockReset<'a> { | ||
| pub fn new(text: &'a str) -> Self { | ||
| Self { | ||
| text, | ||
| ..Default::default() | ||
| } | ||
| } | ||
| } | ||
|
|
||
| impl<'a> Handler for CheckClockReset<'a> { | ||
| fn set_point(&mut self, p: HandlerPoint) { | ||
| self.point = p; | ||
| } | ||
| } | ||
|
|
||
| impl<'a> VerylGrammarTrait for CheckClockReset<'a> { | ||
| fn l_brace(&mut self, _arg: &LBrace) -> Result<(), ParolError> { | ||
| if let HandlerPoint::Before = self.point { | ||
| if self.in_if_reset { | ||
| self.if_reset_brace += 1; | ||
| } | ||
| } | ||
| Ok(()) | ||
| } | ||
|
|
||
| fn r_brace(&mut self, _arg: &RBrace) -> Result<(), ParolError> { | ||
| if let HandlerPoint::Before = self.point { | ||
| if self.in_if_reset { | ||
| self.if_reset_brace -= 1; | ||
| if self.if_reset_brace == 0 { | ||
| self.in_if_reset = false; | ||
| } | ||
| } | ||
| } | ||
| Ok(()) | ||
| } | ||
|
|
||
| fn if_reset(&mut self, _arg: &IfReset) -> Result<(), ParolError> { | ||
| if let HandlerPoint::Before = self.point { | ||
| self.if_reset_exist = true; | ||
| self.in_if_reset = true; | ||
| } | ||
| Ok(()) | ||
| } | ||
|
|
||
| fn always_ff_declaration(&mut self, arg: &AlwaysFfDeclaration) -> Result<(), ParolError> { | ||
| match self.point { | ||
| HandlerPoint::Before => { | ||
| // Check first if_reset when reset signel exists | ||
| let if_reset_required = if arg.always_ff_declaration_opt.is_some() { | ||
| if let Some(x) = arg.always_ff_declaration_list.first() { | ||
| !matches!(&*x.statement, Statement::IfResetStatement(_)) | ||
| } else { | ||
| true | ||
| } | ||
| } else { | ||
| false | ||
| }; | ||
| if if_reset_required { | ||
| self.errors | ||
| .push(AnalyzerError::missing_if_reset(self.text, &arg.into())); | ||
| } | ||
|
|
||
| self.in_always_ff = true; | ||
| } | ||
| HandlerPoint::After => { | ||
| // Check reset signal when if_reset exists | ||
| if self.if_reset_exist && arg.always_ff_declaration_opt.is_none() { | ||
| self.errors | ||
| .push(AnalyzerError::missing_reset_signal(self.text, &arg.into())); | ||
| } | ||
|
|
||
| self.in_always_ff = false; | ||
| self.if_reset_exist = false; | ||
| } | ||
| } | ||
| Ok(()) | ||
| } | ||
|
|
||
| fn always_ff_clock(&mut self, arg: &AlwaysFfClock) -> Result<(), ParolError> { | ||
| match self.point { | ||
| HandlerPoint::Before => self.n_of_select = 0, | ||
| HandlerPoint::After => { | ||
| if let Ok(found) = symbol_table::resolve(arg.hierarchical_identifier.as_ref()) { | ||
| let symbol = found.found; | ||
| let valid_clock = match symbol.kind { | ||
| SymbolKind::Port(x) => { | ||
| let clock = x.r#type.clone().unwrap(); | ||
| let n_of_select = clock.width.len() + clock.array.len(); | ||
| match clock.kind { | ||
| TypeKind::Clock | ||
| | TypeKind::ClockPosedge | ||
| | TypeKind::ClockNegedge => n_of_select == self.n_of_select, | ||
| _ => false, | ||
| } | ||
| } | ||
| SymbolKind::Variable(x) => { | ||
| let clock = x.r#type; | ||
| let n_of_select = clock.width.len() + clock.array.len(); | ||
| match clock.kind { | ||
| TypeKind::Clock | ||
| | TypeKind::ClockPosedge | ||
| | TypeKind::ClockNegedge => n_of_select == self.n_of_select, | ||
| _ => false, | ||
| } | ||
| } | ||
| _ => false, | ||
| }; | ||
|
|
||
| if !valid_clock { | ||
| let token = &arg | ||
| .hierarchical_identifier | ||
| .identifier | ||
| .identifier_token | ||
| .token; | ||
| self.errors.push(AnalyzerError::invalid_clock( | ||
| &token.to_string(), | ||
| &arg.hierarchical_identifier.as_ref().into(), | ||
| )); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| Ok(()) | ||
| } | ||
|
|
||
| fn always_ff_reset(&mut self, arg: &AlwaysFfReset) -> Result<(), ParolError> { | ||
| match self.point { | ||
| HandlerPoint::Before => self.n_of_select = 0, | ||
| HandlerPoint::After => { | ||
| if let Ok(found) = symbol_table::resolve(arg.hierarchical_identifier.as_ref()) { | ||
| let symbol = found.found; | ||
| let valid_reset = match symbol.kind { | ||
| SymbolKind::Port(x) => { | ||
| let reset = x.r#type.clone().unwrap(); | ||
| let n_of_select = reset.width.len() + reset.array.len(); | ||
| match reset.kind { | ||
| TypeKind::Reset | ||
| | TypeKind::ResetAsyncHigh | ||
| | TypeKind::ResetAsyncLow | ||
| | TypeKind::ResetSyncHigh | ||
| | TypeKind::ResetSyncLow => n_of_select == self.n_of_select, | ||
| _ => false, | ||
| } | ||
| } | ||
| SymbolKind::Variable(x) => { | ||
| let reset = x.r#type; | ||
| let n_of_select = reset.width.len() + reset.array.len(); | ||
| match reset.kind { | ||
| TypeKind::Reset | ||
| | TypeKind::ResetAsyncHigh | ||
| | TypeKind::ResetAsyncLow | ||
| | TypeKind::ResetSyncHigh | ||
| | TypeKind::ResetSyncLow => n_of_select == self.n_of_select, | ||
| _ => false, | ||
| } | ||
| } | ||
| _ => false, | ||
| }; | ||
|
|
||
| if !valid_reset { | ||
| let token = &arg | ||
| .hierarchical_identifier | ||
| .identifier | ||
| .identifier_token | ||
| .token; | ||
| self.errors.push(AnalyzerError::invalid_reset( | ||
| &token.to_string(), | ||
| &arg.hierarchical_identifier.as_ref().into(), | ||
| )); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| Ok(()) | ||
| } | ||
|
|
||
| fn select(&mut self, _arg: &Select) -> Result<(), ParolError> { | ||
| if let HandlerPoint::Before = self.point { | ||
| self.n_of_select += 1; | ||
| } | ||
| Ok(()) | ||
| } | ||
|
|
||
| fn dot(&mut self, _arg: &Dot) -> Result<(), ParolError> { | ||
| if let HandlerPoint::Before = self.point { | ||
| self.n_of_select = 0; | ||
| } | ||
| Ok(()) | ||
| } | ||
| } |
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