1 files changed, 38 insertions, 0 deletions
diff --git a/source/slang/lower.h b/source/slang/lower.h
new file mode 100644
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+++ b/source/slang/lower.h
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+// lower.h
+#ifndef SLANG_LOWER_H_INCLUDED
+#define SLANG_LOWER_H_INCLUDED
+
+// The "lowering" step takes an input AST written in the complete Slang
+// language and turns it into a more minimal format (still using the
+// same AST) suitable for emission into lower-level languages.
+
+#include "../core/basic.h"
+
+#include "compiler.h"
+#include "syntax.h"
+
+namespace Slang
+{
+    class EntryPointRequest;
+    class ProgramLayout;
+    class TranslationUnitRequest;
+
+    struct LoweredEntryPoint
+    {
+        // The actual lowered entry point
+        RefPtr<FunctionSyntaxNode>  entryPoint;
+
+        // The generated program AST that
+        // contains the entry point and any
+        // other declarations it uses
+        RefPtr<ProgramSyntaxNode>   program;
+    };
+
+    // Emit code for a single entry point, based on
+    // the input translation unit.
+    LoweredEntryPoint lowerEntryPoint(
+        EntryPointRequest*  entryPoint,
+        ProgramLayout*      programLayout,
+        CodeGenTarget       target);
+}
+#endif