From 67e82d80657dd72496ebce3135474b76ac24bca6 Mon Sep 17 00:00:00 2001
From: Alex Beregszaszi <alex@rtfs.hu>
Date: Mon, 27 Jun 2022 00:42:09 +0200
Subject: [PATCH] Add cmake-based header generation

---
 stdlib/CMakeLists.txt  | 21 +++++++++++++++++++++
 stdlib/stdlib.h.in     | 15 +++++++++++++++
 stdlib/stdlib.src.h.in | 13 +++++++++++++
 3 files changed, 49 insertions(+)
 create mode 100644 stdlib/CMakeLists.txt
 create mode 100644 stdlib/stdlib.h.in
 create mode 100644 stdlib/stdlib.src.h.in

diff --git a/stdlib/CMakeLists.txt b/stdlib/CMakeLists.txt
new file mode 100644
index 000000000..742755f85
--- /dev/null
+++ b/stdlib/CMakeLists.txt
@@ -0,0 +1,21 @@
+# This will re-generate the headers if any file within src was modified.
+set_directory_properties(PROPERTY CMAKE_CONFIGURE_DEPENDS ${CMAKE_SOURCE_DIR}/stdlib/src/)
+
+set(STDLIB precompiles)
+set(GENERATED_STDLIB_HEADERS)
+foreach(src IN LISTS STDLIB)
+	set(STDLIB_FILE ${CMAKE_SOURCE_DIR}/stdlib/src/${src}.sol)
+	file(READ ${STDLIB_FILE} STDLIB_FILE_CONTENT HEX)
+	string(REGEX MATCHALL ".." STDLIB_FILE_CONTENT "${STDLIB_FILE_CONTENT}")
+	string(REGEX REPLACE ";" ",\n\t0x" STDLIB_FILE_CONTENT "${STDLIB_FILE_CONTENT}")
+	set(STDLIB_FILE_CONTENT "0x${STDLIB_FILE_CONTENT}")
+	set(STDLIB_FILE_NAME ${src})
+	configure_file("${CMAKE_SOURCE_DIR}/stdlib/stdlib.src.h.in" ${CMAKE_BINARY_DIR}/include/stdlib/${src}.h @ONLY)
+	list(APPEND GENERATED_STDLIB_HEADERS ${CMAKE_BINARY_DIR}/include/stdlib/${src}.h)
+endforeach()
+
+configure_file("${CMAKE_SOURCE_DIR}/stdlib/stdlib.h.in" ${CMAKE_BINARY_DIR}/include/stdlib.h @ONLY)
+
+#add_library(stdlib
+#	${GENERATED_STDLIB_HEADERS}
+#)
diff --git a/stdlib/stdlib.h.in b/stdlib/stdlib.h.in
new file mode 100644
index 000000000..b1d243270
--- /dev/null
+++ b/stdlib/stdlib.h.in
@@ -0,0 +1,15 @@
+#pragma once
+
+#include <map>
+#include <string>
+
+#include "stdlib/precompiles.h"
+
+namespace solidity::stdlib
+{
+
+static std::map<std::string, std::string> sources = {
+	{ "std/precompiles.sol", precompiles },
+};
+
+} // namespace solidity::stdlib
diff --git a/stdlib/stdlib.src.h.in b/stdlib/stdlib.src.h.in
new file mode 100644
index 000000000..0407663d6
--- /dev/null
+++ b/stdlib/stdlib.src.h.in
@@ -0,0 +1,13 @@
+// The generation of this file is defined in stdlib/CMakeLists.txt.
+// This file was generated by using the content of stdlib/src/@STDLIB_FILE_NAME@.sol.
+
+#pragma once
+
+namespace solidity::stdlib
+{
+
+static char const @STDLIB_FILE_NAME@[] = {
+	@STDLIB_FILE_CONTENT@, 0
+};
+
+} // namespace solidity::stdlib