1 files changed, 66 insertions, 0 deletions
diff --git a/willow/tools/willowc/lib/compiler.cpp b/willow/tools/willowc/lib/compiler.cpp
new file mode 100644
index 0000000..b933f65
--- /dev/null
+++ b/willow/tools/willowc/lib/compiler.cpp
@@ -0,0 +1,66 @@
+#include <compiler.hpp>
+
+#include <willow/IR/Diagnostic.h>
+#include <willow/IR/Location.h>
+#include <willow/Util/Color.h>
+
+#include <parser.hpp>
+
+#include <iostream>
+#include <print>
+
+namespace willowc {
+
+Compiler::Compiler()
+    : sourcemanager_(), log_level_(willow::Severity::Error),
+      diagnostic_engine_([this](const willow::Diagnostic &d) { emitDiagnostic(d); }) {}
+
+void Compiler::run() {
+  assert(sourcemanager_.numFiles() == 1);
+  Compiler::compile(0);
+}
+
+void Compiler::compile(FileID file) {
+  Parser parser{sourcemanager_.getFile(file), diagnostic_engine_};
+
+  auto x = parser.run();
+}
+
+void Compiler::emitDiagnostic(const willow::Diagnostic &d) {
+  using namespace willow::termcolor;
+  if (log_level_ > d.severity)
+    return;
+
+  if (d.location) {
+    std::print(std::cerr, "{}{}: ", TextStyle{AnsiColor::None, Emphasis::Bold},
+               d.location.value());
+  }
+
+  std::print(std::cerr, "{}{}: {}{}{}\n", willow::getSeverityColor(d.severity),
+             willow::getSeverityName(d.severity),
+             TextStyle{AnsiColor::Default, Emphasis::Bold}, d.message, TextStyle{});
+  // TODO: trace
+}
+
+willow::LogicalResult Compiler::addSourceFile(const std::string &path) {
+  std::optional<FileID> maybe_source_file = sourcemanager_.addFile(path);
+  if (!maybe_source_file) {
+    std::println(std::cerr, "error: failed to open input file '{}'", path);
+    return willow::failure();
+  }
+
+  return willow::success();
+}
+
+willow::LogicalResult Compiler::addStdIn() {
+  std::optional<FileID> maybestdin = sourcemanager_.addStdIn();
+
+  if (!maybestdin) {
+    std::println(std::cerr, "error: failed to read from stdin");
+    return willow::failure();
+  }
+
+  return willow::success();
+}
+
+}; // namespace willowc