From e66286ebe30afc9acc4531fc2bea29b7fb924f93 Mon Sep 17 00:00:00 2001
From: rtk0c <mail.tianyig@gmail.com>
Date: Mon, 30 May 2022 17:03:20 -0700
Subject: Changeset: 56 Buildsystem cleanup: change to layered structure for
 different targets

---
 source/20-codegen-compiler/CodegenInput.inl | 69 +++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 source/20-codegen-compiler/CodegenInput.inl

(limited to 'source/20-codegen-compiler/CodegenInput.inl')

diff --git a/source/20-codegen-compiler/CodegenInput.inl b/source/20-codegen-compiler/CodegenInput.inl
new file mode 100644
index 0000000..0809e7f
--- /dev/null
+++ b/source/20-codegen-compiler/CodegenInput.inl
@@ -0,0 +1,69 @@
+#pragma once
+
+#include "CodegenConfig.hpp"
+#include "CodegenDecl.hpp"
+
+#include "CodegenUtils.inl"
+
+#include <Utils.hpp>
+
+#include <robin_hood.h>
+#include <cinttypes>
+#include <string>
+#include <string_view>
+#include <vector>
+
+using namespace std::literals;
+
+class CodegenInput {
+private:
+	std::vector<DeclEnum> mEnums;
+	robin_hood::unordered_flat_map<std::string, size_t, StringHash, StringEqual> mDeclByName;
+	robin_hood::unordered_node_map<std::string, DeclNamespace, StringHash, StringEqual> mNamespaces;
+
+public:
+	void AddEnum(std::string fullname, DeclEnum decl) {
+#if CODEGEN_DEBUG_PRINT
+		printf("Committed enum '%s'\n", decl.name.c_str());
+		for (auto& elm : decl.elements) {
+			printf("  - element %s = %" PRId64 "\n", elm.name.c_str(), elm.value);
+		}
+#endif
+
+		mDeclByName.try_emplace(std::move(fullname), mEnums.size());
+		mEnums.push_back(std::move(decl));
+	}
+
+	DeclNamespace* AddNamespace(DeclNamespace ns) {
+		auto path = Utils::MakeFullName(""sv, &ns);
+		auto [iter, success] = mNamespaces.try_emplace(std::move(path), std::move(ns));
+		auto& nsRef = iter->second;
+		if (success) {
+			nsRef.fullname = iter->first;
+		}
+		return &nsRef;
+	}
+
+	const DeclEnum* FindEnumByName(std::string_view name) const {
+		// TODO handle multiple kinds of decl
+		auto iter = mDeclByName.find(name);
+		if (iter != mDeclByName.end()) {
+			return &mEnums[iter->second];
+		} else {
+			return nullptr;
+		}
+	}
+
+	const DeclNamespace* FindNamespace(std::string_view fullname) const {
+		auto iter = mNamespaces.find(fullname);
+		if (iter != mNamespaces.end()) {
+			return &iter->second;
+		} else {
+			return nullptr;
+		}
+	}
+
+	DeclNamespace* FindNamespace(std::string_view name) {
+		return const_cast<DeclNamespace*>(const_cast<const CodegenInput*>(this)->FindNamespace(name));
+	}
+};
-- 
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