From 8f98dc579af1993ec85bd849656c4835b4039dd6 Mon Sep 17 00:00:00 2001
From: Stefan Weigl-Bosker <stefan@s00.xyz>
Date: Mon, 23 Feb 2026 22:18:22 -0500
Subject: [willow]: frontend plumbing (#13)

...
---
 willow/tools/willowc/include/parser.hpp | 32 ++++++++++++++++++++------------
 1 file changed, 20 insertions(+), 12 deletions(-)

(limited to 'willow/tools/willowc/include/parser.hpp')

diff --git a/willow/tools/willowc/include/parser.hpp b/willow/tools/willowc/include/parser.hpp
index 825dfdd..59f6bfb 100644
--- a/willow/tools/willowc/include/parser.hpp
+++ b/willow/tools/willowc/include/parser.hpp
@@ -1,31 +1,39 @@
 #ifndef WILLOWC_INCLUDE_PARSER_HPP
 #define WILLOWC_INCLUDE_PARSER_HPP
 
-#include <tokenizer.hpp>
 #include <ast.hpp>
+#include <sourcemanager.hpp>
+#include <tokenizer.hpp>
+
+#include <willow/IR/DiagnosticEngine.h>
 
-#include <optional>
 #include <memory>
+#include <optional>
 #include <vector>
 
 namespace willowc {
 
 class Parser {
-  std::string_view buf;
+public:
+  Parser(SourceManager::File &f, willow::DiagnosticEngine &diagnostic_engine)
+      : file_(f), tokenizer_(f.buf.get()),
+        diagnostic_engine_(diagnostic_engine) {}
 
-  std::vector<TokenKind> kinds;
-  std::vector<std::size_t> starts;
-  Tokenizer tokenizer;
+  std::optional<std::unique_ptr<ModuleAST>> run();
 
-  std::size_t pos;
+  TokenKind kind() const { return kinds_[pos_]; }
+  std::size_t start() const { return starts_[pos_]; }
 
-public:
-  Parser(std::string_view buf) : buf(buf), tokenizer(buf) {}
+private:
+  willow::DiagnosticBuilder emitParserError(Token t, willow::Severity severity);
 
-  std::optional<std::unique_ptr<ModuleAST>> parse();
+  SourceManager::File &file_;
+  std::vector<TokenKind> kinds_;
+  std::vector<std::size_t> starts_;
+  Tokenizer tokenizer_;
+  std::size_t pos_;
+  willow::DiagnosticEngine &diagnostic_engine_;
 
-  TokenKind kind() const { return kinds[pos]; }
-  std::size_t start() const { return starts[pos]; }
 };
 
 } // namespace willowc
-- 
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