Feature(compiler): CPPMangler - support fn/method without parameters

ovr · ovr · commit d65fd53df812 · 2018-11-18T17:01:07.000+03:00
diff --git a/src/backend/llvm/cpp.mangler.ts b/src/backend/llvm/cpp.mangler.ts
@@ -1,11 +1,9 @@
 
 import * as ts from 'typescript';
 
-export class CPPMangler {
-    static getMethodName(clazz: string, method: string, parameters: ts.NodeArray<ts.ParameterDeclaration>): string {
-        const name = clazz + '__' + method;
-
-        return '_Z' + name.length + name + parameters.map(
+function mangleParameters(parameters: ts.NodeArray<ts.ParameterDeclaration>): string {
+    if (parameters.length > 0) {
+        return parameters.map(
             (parameter) => {
                 if (parameter.type) {
                     switch (parameter.type.kind) {
@@ -24,29 +22,20 @@ export class CPPMangler {
 
                 throw new Error('Unsupported mangling without type');
             }
-        );
+        ).join();
     }
 
-    static getFunctionName(name: string, parameters: ts.NodeArray<ts.ParameterDeclaration>): string {
-        return '_Z' + name.length + name + parameters.map(
-            (parameter) => {
-                if (parameter.type) {
-                    switch (parameter.type.kind) {
-                        case ts.SyntaxKind.NumberKeyword:
-                            return 'd';
-                        case ts.SyntaxKind.StringKeyword:
-                            return 'PKc';
-                        case ts.SyntaxKind.BooleanKeyword:
-                            return 'b';
-                        default:
-                            throw new Error(
-                                `Unsupported mangling parameter type: ${parameter.type.kind}`
-                            );
-                    }
-                }
+    return 'v';
+}
 
-                throw new Error('Unsupported mangling without type');
-            }
-        );
+export class CPPMangler {
+    static getMethodName(clazz: string, method: string, parameters: ts.NodeArray<ts.ParameterDeclaration>): string {
+        const name = clazz + '__' + method;
+
+        return '_Z' + name.length + name + mangleParameters(parameters);
+    }
+
+    static getFunctionName(name: string, parameters: ts.NodeArray<ts.ParameterDeclaration>): string {
+        return '_Z' + name.length + name + mangleParameters(parameters);
     }
 }
