remove invocation method from component imports/exports

since at component boundaries every function is invoked via `call`.

frontend-wasm/src/component/build_ir.rs

@@ -69,9 +69,7 @@ mod tests {
     use miden_hir_type::Type;
 
     use crate::{
-        component::StaticModuleIndex,
-        config::{ExportMetadata, ImportMetadata},
-        test_utils::test_diagnostics,
+        component::StaticModuleIndex, config::ImportMetadata, test_utils::test_diagnostics,
     };
 
     use super::*;
@@ -105,18 +103,7 @@ mod tests {
         );
         let wasm = wat::parse_str(wat).unwrap();
         let diagnostics = test_diagnostics();
-        let export_metadata = [(
-            Symbol::intern("add").into(),
-            ExportMetadata {
-                invoke_method: miden_hir::FunctionInvocationMethod::Call,
-            },
-        )]
-        .into_iter()
-        .collect();
-        let config = WasmTranslationConfig {
-            export_metadata,
-            ..Default::default()
-        };
+        let config = Default::default();
         let (mut component_types_builder, parsed_component) =
             parse(&config, &wasm, &diagnostics).unwrap();
         let component_translation =
@@ -208,22 +195,13 @@ mod tests {
             interface_function_ident.clone(),
             ImportMetadata {
                 digest: RpoDigest::default(),
-                invoke_method: miden_hir::FunctionInvocationMethod::Call,
-            },
-        )]
-        .into_iter()
-        .collect();
-        let export_metadata = [(
-            Symbol::intern("inc").into(),
-            ExportMetadata {
-                invoke_method: miden_hir::FunctionInvocationMethod::Call,
             },
         )]
         .into_iter()
         .collect();
+
         let config = WasmTranslationConfig {
             import_metadata,
-            export_metadata,
             ..Default::default()
         };
         let (mut component_types_builder, parsed_component) =

frontend-wasm/src/component/translator.rs

@@ -2,8 +2,8 @@ use miden_diagnostics::DiagnosticsHandler;
 use rustc_hash::FxHashMap;
 
 use miden_hir::{
-    cranelift_entity::PrimaryMap, ComponentBuilder, ComponentExport, FunctionExportName,
-    FunctionIdent, Ident, InterfaceFunctionIdent, InterfaceIdent, Symbol,
+    cranelift_entity::PrimaryMap, ComponentBuilder, ComponentExport, FunctionIdent, Ident,
+    InterfaceFunctionIdent, InterfaceIdent, Symbol,
 };
 use miden_hir_type::LiftedFunctionType;
 
@@ -272,7 +272,6 @@ impl<'a, 'data> ComponentTranslator<'a, 'data> {
         let component_import = miden_hir::ComponentImport {
             function_ty: lifted_func_ty,
             interface_function,
-            invoke_method: import_metadata.invoke_method,
             digest: import_metadata.digest.clone(),
         };
         Ok(component_import)
@@ -288,7 +287,7 @@ impl<'a, 'data> ComponentTranslator<'a, 'data> {
         match export {
             Export::LiftedFunction { ty, func, options } => {
                 let export_name = Symbol::intern(name).into();
-                let export = self.build_export_lifted_function(&export_name, func, ty, options)?;
+                let export = self.build_export_lifted_function(func, ty, options)?;
                 component_builder.add_export(export_name, export);
                 Ok(())
             }
@@ -316,7 +315,6 @@ impl<'a, 'data> ComponentTranslator<'a, 'data> {
     /// Build an IR Component export from the given lifted Wasm core module function export
     fn build_export_lifted_function(
         &self,
-        function_export_name: &FunctionExportName,
         func: &CoreDef,
         ty: &TypeFuncIndex,
         options: &CanonicalOptions,
@@ -361,16 +359,9 @@ impl<'a, 'data> ComponentTranslator<'a, 'data> {
             }
         };
         let lifted_func_ty = convert_lifted_func_ty(ty, &self.component_types);
-        let Some(export_metadata) = self.config.export_metadata.get(function_export_name) else {
-            return Err(WasmError::MissingExportMetadata(format!(
-                "Export metadata for interface function {:?} not found",
-                function_export_name,
-            )));
-        };
         let export = miden_hir::ComponentExport {
             function: func_ident,
             function_ty: lifted_func_ty,
-            invoke_method: export_metadata.invoke_method,
         };
         Ok(export)
     }

frontend-wasm/src/config.rs

@@ -1,5 +1,5 @@
 use miden_core::crypto::hash::RpoDigest;
-use miden_hir::{FunctionExportName, FunctionInvocationMethod, InterfaceFunctionIdent};
+use miden_hir::InterfaceFunctionIdent;
 use rustc_hash::FxHashMap;
 
 /// Represents Miden VM codegen metadata for a function import.
@@ -9,15 +9,6 @@ use rustc_hash::FxHashMap;
 pub struct ImportMetadata {
     /// The MAST root hash of the function to be used in codegen
     pub digest: RpoDigest,
-    /// The method of calling the function
-    pub invoke_method: FunctionInvocationMethod,
-}
-
-/// Represents function export metadata
-#[derive(Debug, Clone)]
-pub struct ExportMetadata {
-    /// The method of calling the function
-    pub invoke_method: FunctionInvocationMethod,
 }
 
 /// Configuration for the WASM translation.
@@ -37,9 +28,6 @@ pub struct WasmTranslationConfig {
     /// each imported function. Having it here might be a temporary solution,
     /// later we might want to move it to Wasm custom section.
     pub import_metadata: FxHashMap<InterfaceFunctionIdent, ImportMetadata>,
-
-    /// Export metadata for calling convention, etc.
-    pub export_metadata: FxHashMap<FunctionExportName, ExportMetadata>,
 }
 
 impl Default for WasmTranslationConfig {
@@ -49,7 +37,6 @@ impl Default for WasmTranslationConfig {
             generate_native_debuginfo: false,
             parse_wasm_debuginfo: false,
             import_metadata: Default::default(),
-            export_metadata: Default::default(),
         }
     }
 }

hir/src/component/mod.rs

@@ -38,8 +38,6 @@ pub struct ComponentImport {
     pub interface_function: InterfaceFunctionIdent,
     /// The component(lifted) type of the imported function
     pub function_ty: LiftedFunctionType,
-    /// The method of calling the function
-    pub invoke_method: FunctionInvocationMethod,
     /// The MAST root hash of the function to be used in codegen
     pub digest: RpoDigest,
 }
@@ -67,8 +65,6 @@ pub struct ComponentExport {
     pub function: FunctionIdent,
     /// The component(lifted) type of the exported function
     pub function_ty: LiftedFunctionType,
-    /// The method of calling the function
-    pub invoke_method: FunctionInvocationMethod,
 }
 
 /// A [Component] is a collection of [Module]s that are being compiled together as a package and have exports/imports.

tests/integration/src/rust_masm_tests/components.rs

@@ -1,7 +1,6 @@
 use crate::CompilerTest;
 use expect_test::expect_file;
 use miden_core::crypto::hash::RpoDigest;
-use miden_frontend_wasm::ExportMetadata;
 use miden_frontend_wasm::ImportMetadata;
 use miden_frontend_wasm::WasmTranslationConfig;
 use miden_hir::InterfaceFunctionIdent;
@@ -13,18 +12,7 @@ use miden_hir::Type;
 #[test]
 fn wcm_add() {
     // Has no imports
-    let export_metadata = [(
-        Symbol::intern("add").into(),
-        ExportMetadata {
-            invoke_method: miden_hir::FunctionInvocationMethod::Call,
-        },
-    )]
-    .into_iter()
-    .collect();
-    let config = WasmTranslationConfig {
-        export_metadata,
-        ..Default::default()
-    };
+    let config = Default::default();
     let mut test = CompilerTest::rust_source_cargo_component("add-comp", config);
     let artifact_name = test.source.artifact_name();
     test.expect_wasm(expect_file![format!(
@@ -48,22 +36,13 @@ fn wcm_inc() {
         interface_function_ident.clone(),
         ImportMetadata {
             digest: RpoDigest::default(),
-            invoke_method: miden_hir::FunctionInvocationMethod::Call,
-        },
-    )]
-    .into_iter()
-    .collect();
-    let export_metadata = [(
-        Symbol::intern("inc").into(),
-        ExportMetadata {
-            invoke_method: miden_hir::FunctionInvocationMethod::Call,
         },
     )]
     .into_iter()
     .collect();
+
     let config = WasmTranslationConfig {
         import_metadata,
-        export_metadata,
         ..Default::default()
     };
     let mut test = CompilerTest::rust_source_cargo_component("inc-comp", config);

tests/integration/src/rust_masm_tests/sdk.rs

@@ -1,7 +1,6 @@
 use crate::CompilerTest;
 use expect_test::expect_file;
 use miden_core::crypto::hash::RpoDigest;
-use miden_frontend_wasm::ExportMetadata;
 use miden_frontend_wasm::ImportMetadata;
 use miden_frontend_wasm::WasmTranslationConfig;
 use miden_hir::FunctionExportName;
@@ -38,45 +37,29 @@ fn sdk_basic_wallet() {
             create_note_ident.clone(),
             ImportMetadata {
                 digest: RpoDigest::default(),
-                invoke_method: miden_hir::FunctionInvocationMethod::Call,
             },
         ),
         (
             remove_asset_ident.clone(),
             ImportMetadata {
                 digest: RpoDigest::default(),
-                invoke_method: miden_hir::FunctionInvocationMethod::Call,
             },
         ),
         (
             add_asset_ident.clone(),
             ImportMetadata {
                 digest: RpoDigest::default(),
-                invoke_method: miden_hir::FunctionInvocationMethod::Call,
-            },
-        ),
-    ]
-    .into_iter()
-    .collect();
-    let export_metadata: FxHashMap<FunctionExportName, ExportMetadata> = [
-        (
-            Symbol::intern("send-asset").into(),
-            ExportMetadata {
-                invoke_method: miden_hir::FunctionInvocationMethod::Call,
-            },
-        ),
-        (
-            Symbol::intern("receive-asset").into(),
-            ExportMetadata {
-                invoke_method: miden_hir::FunctionInvocationMethod::Call,
             },
         ),
     ]
     .into_iter()
     .collect();
+    let expected_exports: Vec<FunctionExportName> = vec![
+        Symbol::intern("send-asset").into(),
+        Symbol::intern("receive-asset").into(),
+    ];
     let config = WasmTranslationConfig {
         import_metadata: import_metadata.clone(),
-        export_metadata: export_metadata.clone(),
         ..Default::default()
     };
     let mut test = CompilerTest::rust_source_cargo_component("sdk/basic-wallet", config);
@@ -91,7 +74,7 @@ fn sdk_basic_wallet() {
     for (_, import) in ir.imports() {
         assert!(import_metadata.contains_key(&import.interface_function));
     }
-    for (name, _meta) in export_metadata {
+    for name in expected_exports {
         assert!(ir.exports().contains_key(&name));
     }
 }