Code generation (missing external access and source locations).

1 files changed, 66 insertions, 0 deletions

diff --git a/libsolidity/inlineasm/AsmCodeGen.h b/libsolidity/inlineasm/AsmCodeGen.h
new file mode 100644
index 00000000..f749ba50
--- /dev/null
+++ b/libsolidity/inlineasm/AsmCodeGen.h
@@ -0,0 +1,66 @@
+/*
+	This file is part of cpp-ethereum.
+
+	cpp-ethereum is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	cpp-ethereum is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/**
+ * @author Christian <c@ethdev.com>
+ * @date 2016
+ * Code-generating part of inline assembly.
+ */
+
+#pragma once
+
+#include <functional>
+#include <libsolidity/interface/Exceptions.h>
+
+namespace dev
+{
+namespace eth
+{
+class Assembly;
+}
+namespace solidity
+{
+namespace assembly
+{
+struct Block;
+struct Identifier;
+
+class CodeGenerator
+{
+public:
+	enum class IdentifierContext { LValue, RValue };
+	/// Function type that is called for external identifiers. Such a function should search for
+	/// the identifier and append appropriate assembly items to the assembly. If in lvalue context,
+	/// the value to assign is assumed to be on the stack and an assignment is to be performed.
+	/// If in rvalue context, the function is assumed to append instructions to
+	/// push the value of the identifier onto the stack. On error, the function should return false.
+	using IdentifierAccess = std::function<bool(assembly::Identifier const&, eth::Assembly&, IdentifierContext)>;
+	CodeGenerator( Block const& _parsedData, ErrorList& _errors):
+		m_parsedData(_parsedData), m_errors(_errors) {}
+	/// Performs type checks and @returns false on error.
+	/// Actually runs the full code generation but discards the result.
+	bool typeCheck(IdentifierAccess const& _identifierAccess = IdentifierAccess());
+	/// Performs code generation and @returns the result.
+	eth::Assembly assemble(IdentifierAccess const& _identifierAccess = IdentifierAccess());
+
+private:
+	Block const& m_parsedData;
+	ErrorList& m_errors;
+};
+
+}
+}
+}