Use symbol table handle in resolver
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944916d6af
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5ac5425fac
@ -14,8 +14,7 @@ fn evaluate_all_outputs(input: &str) -> Vec<Result<String, String>> {
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let mut ast = crate::util::quick_ast(input);
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state.symbol_table_handle.borrow_mut().add_top_level_symbols(&ast).unwrap();
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{
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let mut t = &mut state.symbol_table_handle.borrow_mut();
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let mut scope_resolver = ScopeResolver::new(&mut t);
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let mut scope_resolver = ScopeResolver::new(state.symbol_table_handle.clone());
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let _ = scope_resolver.resolve(&mut ast);
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}
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@ -156,8 +156,7 @@ fn symbol_table(input: ast::AST, handle: &mut Schala, comp: Option<&mut PassDebu
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}
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fn scope_resolution(mut input: ast::AST, handle: &mut Schala, _com: Option<&mut PassDebugArtifact>) -> Result<ast::AST, String> {
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let mut symbol_table = handle.symbol_table.borrow_mut();
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let mut resolver = crate::scope_resolution::ScopeResolver::new(&mut symbol_table);
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let mut resolver = crate::scope_resolution::ScopeResolver::new(handle.symbol_table.clone());
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let () = resolver.resolve(&mut input)?;
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Ok(input)
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}
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@ -1,25 +1,27 @@
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use std::rc::Rc;
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use crate::symbol_table::{SymbolTable, ScopeSegment, FullyQualifiedSymbolName};
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use crate::schala::SymbolTableHandle;
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use crate::symbol_table::{ScopeSegment, FullyQualifiedSymbolName};
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use crate::ast::*;
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use crate::util::ScopeStack;
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type FQSNPrefix = Vec<ScopeSegment>;
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pub struct ScopeResolver<'a> {
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symbol_table: &'a mut SymbolTable,
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symbol_table_handle: SymbolTableHandle,
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name_scope_stack: ScopeStack<'a, Rc<String>, FQSNPrefix>,
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}
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impl<'a> ASTVisitor for ScopeResolver<'a> {
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fn import(&mut self, import_spec: &ImportSpecifier) {
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let ref symbol_table = self.symbol_table_handle.borrow();
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let ImportSpecifier { ref path_components, ref imported_names, .. } = &import_spec;
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match imported_names {
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ImportedNames::All => {
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let prefix = FullyQualifiedSymbolName(path_components.iter().map(|c| ScopeSegment {
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name: c.clone(),
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}).collect());
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let members = self.symbol_table.lookup_children_of_fqsn(&prefix);
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let members = symbol_table.lookup_children_of_fqsn(&prefix);
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for member in members.into_iter() {
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let local_name = member.0.last().unwrap().name.clone();
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self.name_scope_stack.insert(local_name.clone(), member.0);
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@ -44,15 +46,17 @@ impl<'a> ASTVisitor for ScopeResolver<'a> {
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}
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fn qualified_name(&mut self, qualified_name: &QualifiedName) {
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let ref mut symbol_table = self.symbol_table_handle.borrow_mut();
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let fqsn = self.lookup_name_in_scope(&qualified_name);
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let ref id = qualified_name.id;
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self.symbol_table.map_id_to_fqsn(id, fqsn);
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symbol_table.map_id_to_fqsn(id, fqsn);
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}
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fn named_struct(&mut self, name: &QualifiedName, _fields: &Vec<(Rc<String>, Expression)>) {
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let ref mut symbol_table = self.symbol_table_handle.borrow_mut();
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let ref id = name.id;
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let fqsn = self.lookup_name_in_scope(&name);
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self.symbol_table.map_id_to_fqsn(id, fqsn);
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symbol_table.map_id_to_fqsn(id, fqsn);
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}
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fn pattern(&mut self, pat: &Pattern) {
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@ -69,9 +73,9 @@ impl<'a> ASTVisitor for ScopeResolver<'a> {
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}
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impl<'a> ScopeResolver<'a> {
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pub fn new(symbol_table: &'a mut SymbolTable) -> ScopeResolver {
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pub fn new(symbol_table_handle: SymbolTableHandle) -> ScopeResolver<'static> {
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let name_scope_stack = ScopeStack::new(None);
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ScopeResolver { symbol_table, name_scope_stack }
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ScopeResolver { symbol_table_handle, name_scope_stack }
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}
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pub fn resolve(&mut self, ast: &mut AST) -> Result<(), String> {
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walk_ast(self, ast);
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@ -96,10 +100,11 @@ impl<'a> ScopeResolver<'a> {
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/// this might be a variable or a pattern. if a variable, set to none
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fn qualified_name_in_pattern(&mut self, qualified_name: &QualifiedName) {
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let ref mut symbol_table = self.symbol_table_handle.borrow_mut();
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let ref id = qualified_name.id;
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let fqsn = self.lookup_name_in_scope(qualified_name);
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if self.symbol_table.lookup_by_fqsn(&fqsn).is_some() {
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self.symbol_table.map_id_to_fqsn(&id, fqsn);
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if symbol_table.lookup_by_fqsn(&fqsn).is_some() {
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symbol_table.map_id_to_fqsn(&id, fqsn);
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}
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}
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}
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