[ASTGen] Generate MacroDecl

Author: rintaro

include/swift/AST/ASTBridging.h

@@ -980,6 +980,16 @@ BridgedAssociatedTypeDecl BridgedAssociatedTypeDecl_createParsed(
     BridgedNullableTypeRepr opaqueDefaultType,
     BridgedNullableTrailingWhereClause genericWhereClause);
 
+SWIFT_NAME(
+    "BridgedMacroDecl.createParsed(_:declContext:macroKeywordLoc:name:nameLoc:"
+    "genericParamList:paramList:arrowLoc:resultType:definition:)")
+BridgedMacroDecl BridgedMacroDecl_createParsed(
+    BridgedASTContext cContext, BridgedDeclContext cDeclContext,
+    BridgedSourceLoc cMacroLoc, BridgedIdentifier cName,
+    BridgedSourceLoc cNameLoc, BridgedNullableGenericParamList cGenericParams,
+    BridgedParameterList cParams, BridgedSourceLoc cArrowLoc,
+    BridgedNullableTypeRepr cResultType, BridgedNullableExpr cDefinition);
+
 SWIFT_NAME("BridgedMacroExpansionDecl.createParsed(_:poundLoc:macroNameRef:"
            "macroNameLoc:leftAngleLoc:genericArgs:rightAngleLoc:args:)")
 BridgedMacroExpansionDecl BridgedMacroExpansionDecl_createParsed(

lib/AST/Bridging/DeclBridging.cpp

@@ -304,6 +304,22 @@ BridgedDestructorDecl_createParsed(BridgedASTContext cContext,
   return decl;
 }
 
+BridgedMacroDecl BridgedMacroDecl_createParsed(
+    BridgedASTContext cContext, BridgedDeclContext cDeclContext,
+    BridgedSourceLoc cMacroLoc, BridgedIdentifier cName,
+    BridgedSourceLoc cNameLoc, BridgedNullableGenericParamList cGenericParams,
+    BridgedParameterList cParams, BridgedSourceLoc cArrowLoc,
+    BridgedNullableTypeRepr cResultType, BridgedNullableExpr cDefinition) {
+  ASTContext &context = cContext.unbridged();
+  auto *params = cParams.unbridged();
+  DeclName fullName = DeclName(context, cName.unbridged(), params);
+  return new (context)
+      MacroDecl(cMacroLoc.unbridged(), fullName, cNameLoc.unbridged(),
+                cGenericParams.unbridged(), params, cArrowLoc.unbridged(),
+                cResultType.unbridged(), cDefinition.unbridged(),
+                cDeclContext.unbridged());
+}
+
 BridgedTypeAliasDecl BridgedTypeAliasDecl_createParsed(
     BridgedASTContext cContext, BridgedDeclContext cDeclContext,
     BridgedSourceLoc cAliasKeywordLoc, BridgedIdentifier cName,

lib/ASTGen/Sources/ASTGen/Decls.swift

@@ -31,7 +31,7 @@ extension ASTGenVisitor {
     case .deinitializerDecl(let node):
       return self.generate(deinitializerDecl: node).asDecl
     case .editorPlaceholderDecl:
-      break
+      fatalError("EditorPlaceholderDeclSyntax should not be used")
     case .enumCaseDecl(let node):
       return self.generate(enumCaseDecl: node).asDecl
     case .enumDecl(let node):
@@ -46,8 +46,8 @@ extension ASTGenVisitor {
       return self.generate(importDecl: node).asDecl
     case .initializerDecl(let node):
       return self.generate(initializerDecl: node).asDecl
-    case .macroDecl:
-      break
+    case .macroDecl(let node):
+      return self.generate(macroDecl: node).asDecl
     case .macroExpansionDecl(let node):
       return self.generate(macroExpansionDecl: node).asDecl
     case .missingDecl:
@@ -620,6 +620,25 @@ extension ASTGenVisitor {
   }
 }
 
+extension ASTGenVisitor {
+  func generate(macroDecl node: MacroDeclSyntax) -> BridgedMacroDecl {
+    let attrs = self.generateDeclAttributes(node, allowStatic: false)
+    let (name, nameLoc) = self.generateIdentifierAndSourceLoc(node.name)
+    return .createParsed(
+      self.ctx,
+      declContext: self.declContext,
+      macroKeywordLoc: self.generateSourceLoc(node.macroKeyword),
+      name: name,
+      nameLoc: nameLoc,
+      genericParamList: self.generate(genericParameterClause: node.genericParameterClause),
+      paramList: self.generate(functionParameterClause: node.signature.parameterClause, forSubscript: false),
+      arrowLoc: self.generateSourceLoc(node.signature.returnClause?.arrow),
+      resultType: self.generate(type: node.signature.returnClause?.type),
+      definition: self.generate(expr: node.definition?.value)
+    )
+  }
+}
+
 // MARK: - MacroExpansionDecl
 
 extension ASTGenVisitor {