Code generation framework.

lib/dynasm-backend/src/codegen.rs

@@ -0,0 +1,17 @@
+use wasmparser::{Operator, Type as WpType};
+
+pub trait ModuleCodeGenerator<FCG: FunctionCodeGenerator> {
+    fn next_function(&mut self) -> Result<&mut FCG, CodegenError>;
+}
+
+pub trait FunctionCodeGenerator {
+    fn feed_param(&mut self, ty: WpType) -> Result<(), CodegenError>;
+    fn feed_local(&mut self, ty: WpType, n: usize) -> Result<(), CodegenError>;
+    fn feed_opcode(&mut self, op: Operator) -> Result<(), CodegenError>;
+    fn finalize(&mut self) -> Result<(), CodegenError>;
+}
+
+#[derive(Debug)]
+pub struct CodegenError {
+    pub message: &'static str,
+}