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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,135 @@ | ||
| use crate::analyzer_error::AnalyzerError; | ||
| use crate::msb_table; | ||
| use crate::namespace_table; | ||
| use crate::symbol::SymbolKind; | ||
| use crate::symbol_table::{self, SymbolPath, SymbolPathNamespace}; | ||
| use veryl_parser::veryl_grammar_trait::*; | ||
| use veryl_parser::veryl_walker::{Handler, HandlerPoint}; | ||
| use veryl_parser::ParolError; | ||
|
|
||
| pub struct CheckMsbLsb<'a> { | ||
| pub errors: Vec<AnalyzerError>, | ||
| text: &'a str, | ||
| point: HandlerPoint, | ||
| identifier_path: Vec<SymbolPathNamespace>, | ||
| range_dimension: Vec<usize>, | ||
| in_expression_identifier: bool, | ||
| in_range: bool, | ||
| } | ||
|
|
||
| impl<'a> CheckMsbLsb<'a> { | ||
| pub fn new(text: &'a str) -> Self { | ||
| Self { | ||
| errors: Vec::new(), | ||
| text, | ||
| point: HandlerPoint::Before, | ||
| identifier_path: Vec::new(), | ||
| range_dimension: Vec::new(), | ||
| in_expression_identifier: false, | ||
| in_range: false, | ||
| } | ||
| } | ||
| } | ||
|
|
||
| impl<'a> Handler for CheckMsbLsb<'a> { | ||
| fn set_point(&mut self, p: HandlerPoint) { | ||
| self.point = p; | ||
| } | ||
| } | ||
|
|
||
| impl<'a> VerylGrammarTrait for CheckMsbLsb<'a> { | ||
| fn lsb(&mut self, arg: &Lsb) -> Result<(), ParolError> { | ||
| if let HandlerPoint::Before = self.point { | ||
| if !(self.in_expression_identifier && self.in_range) { | ||
| self.errors | ||
| .push(AnalyzerError::invalid_lsb(self.text, &arg.lsb_token)); | ||
| } | ||
| } | ||
| Ok(()) | ||
| } | ||
|
|
||
| fn msb(&mut self, arg: &Msb) -> Result<(), ParolError> { | ||
| if let HandlerPoint::Before = self.point { | ||
| if self.in_expression_identifier && self.in_range { | ||
| let resolved = if let Ok(x) = | ||
| symbol_table::resolve(self.identifier_path.last().unwrap().clone()) | ||
| { | ||
| if let Some(x) = x.found { | ||
| if let SymbolKind::Variable(x) = x.kind { | ||
| let range_dimension = *self.range_dimension.last().unwrap(); | ||
| let expression = if range_dimension >= x.r#type.array.len() { | ||
| &x.r#type.width[range_dimension - x.r#type.array.len()] | ||
| } else { | ||
| &x.r#type.array[range_dimension] | ||
| }; | ||
| msb_table::insert(arg.msb_token.token.id, expression); | ||
| true | ||
| } else { | ||
| false | ||
| } | ||
| } else { | ||
| false | ||
| } | ||
| } else { | ||
| false | ||
| }; | ||
| if !resolved { | ||
| self.errors | ||
| .push(AnalyzerError::unknown_msb(self.text, &arg.msb_token)); | ||
| } | ||
| } else { | ||
| self.errors | ||
| .push(AnalyzerError::invalid_msb(self.text, &arg.msb_token)); | ||
| } | ||
| } | ||
| Ok(()) | ||
| } | ||
|
|
||
| fn identifier(&mut self, arg: &Identifier) -> Result<(), ParolError> { | ||
| if let HandlerPoint::Before = self.point { | ||
| if self.in_expression_identifier { | ||
| self.identifier_path | ||
| .last_mut() | ||
| .unwrap() | ||
| .0 | ||
| .push(arg.identifier_token.token.text); | ||
| } | ||
| } | ||
| Ok(()) | ||
| } | ||
|
|
||
| fn range(&mut self, _arg: &Range) -> Result<(), ParolError> { | ||
| match self.point { | ||
| HandlerPoint::Before => { | ||
| self.in_range = true; | ||
| } | ||
| HandlerPoint::After => { | ||
| self.in_range = false; | ||
| if self.in_expression_identifier { | ||
| *self.range_dimension.last_mut().unwrap() += 1; | ||
| } | ||
| } | ||
| } | ||
| Ok(()) | ||
| } | ||
|
|
||
| fn expression_identifier(&mut self, arg: &ExpressionIdentifier) -> Result<(), ParolError> { | ||
| match self.point { | ||
| HandlerPoint::Before => { | ||
| let namespace = | ||
| namespace_table::get(arg.identifier.identifier_token.token.id).unwrap(); | ||
| let symbol_path = SymbolPath::default(); | ||
| self.identifier_path | ||
| .push(SymbolPathNamespace(symbol_path, namespace)); | ||
| self.range_dimension.push(0); | ||
| self.in_expression_identifier = true; | ||
| } | ||
| HandlerPoint::After => { | ||
| self.identifier_path.pop(); | ||
| self.range_dimension.pop(); | ||
| self.in_expression_identifier = false; | ||
| } | ||
| } | ||
| Ok(()) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| use std::cell::RefCell; | ||
| use std::collections::HashMap; | ||
| use veryl_parser::resource_table::TokenId; | ||
| use veryl_parser::veryl_grammar_trait::Expression; | ||
|
|
||
| #[derive(Clone, Debug)] | ||
| pub struct MsbTable { | ||
| table: HashMap<TokenId, Expression>, | ||
| } | ||
|
|
||
| impl MsbTable { | ||
| pub fn insert(&mut self, id: TokenId, expression: &Expression) { | ||
| self.table.insert(id, expression.clone()); | ||
| } | ||
|
|
||
| pub fn get(&self, id: TokenId) -> Option<&Expression> { | ||
| self.table.get(&id) | ||
| } | ||
| } | ||
|
|
||
| impl Default for MsbTable { | ||
| fn default() -> Self { | ||
| Self { | ||
| table: HashMap::new(), | ||
| } | ||
| } | ||
| } | ||
|
|
||
| thread_local!(static MSB_TABLE: RefCell<MsbTable> = RefCell::new(MsbTable::default())); | ||
|
|
||
| pub fn insert(id: TokenId, expression: &Expression) { | ||
| MSB_TABLE.with(|f| f.borrow_mut().insert(id, expression)) | ||
| } | ||
|
|
||
| pub fn get(id: TokenId) -> Option<Expression> { | ||
| MSB_TABLE.with(|f| f.borrow().get(id).cloned()) | ||
| } |
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