add node wasm import to bindings
[ldk-java] / typescript_strings.py
index 424764017ae6438b5ff2bb726f72e0430b25d159..5c1a36d561168c4231a334ec49570dc52af495e0 100644 (file)
@@ -16,6 +16,62 @@ class Consts:
             long = ['number'],
         )
 
+        self.to_hu_conv_templates = dict(
+            ptr = 'const {var_name}_hu_conv: {human_type} = new {human_type}(null, {var_name});',
+            default = 'const {var_name}_hu_conv: {human_type} = new {human_type}(null, {var_name});',
+        )
+
+        self.bindings_header = """
+    
+const path = require('path').join(__dirname, 'bindings.wasm');
+const bytes = require('fs').readFileSync(path);
+let imports = {};
+// add all exports to dictionary and move down?
+// use `module.exports`?
+// imports['./bindings.js'] = require('./bindings.js');
+
+const wasmModule = new WebAssembly.Module(bytes);
+const wasmInstance = new WebAssembly.Instance(wasmModule, imports);
+// module.exports = wasmInstance.exports;
+const wasm = wasmInstance.exports;
+        
+export class VecOrSliceDef {
+    public dataptr: number;
+    public datalen: number;
+    public stride: number;
+    public constructor(dataptr: number, datalen: number, stride: number) {
+        this.dataptr = dataptr; 
+        this.datalen = datalen; 
+        this.stride = stride;
+    }
+}
+
+/*
+TODO: load WASM file
+static {
+    System.loadLibrary(\"lightningjni\");
+    init(java.lang.Enum.class, VecOrSliceDef.class);
+    init_class_cache();
+}
+
+static native void init(java.lang.Class c, java.lang.Class slicedef);
+static native void init_class_cache();
+
+public static native boolean deref_bool(long ptr);
+public static native long deref_long(long ptr);
+public static native void free_heap_ptr(long ptr);
+public static native byte[] read_bytes(long ptr, long len);
+public static native byte[] get_u8_slice_bytes(long slice_ptr);
+public static native long bytes_to_u8_vec(byte[] bytes);
+public static native long new_txpointer_copy_data(byte[] txdata);
+public static native void txpointer_free(long ptr);
+public static native byte[] txpointer_get_buffer(long ptr);
+public static native long vec_slice_len(long vec);
+public static native long new_empty_slice_vec();
+*/
+
+"""
+
         self.common_base = """
             export default class CommonBase {
                 ptr: number;
@@ -257,13 +313,7 @@ import * as bindings from '../bindings' // TODO: figure out location
         return ret
 
     def native_c_map_trait(self, struct_name, field_var_conversions, field_function_lines):
-        out_java = "out_java:native_c_map_trait"
-        out_java_trait = "out_java_trait:native_c_map_trait"
-        out_c = "out_c:native_c_map_trait"
-
-
-        out_java_trait = ""
-        out_java = ""
+        out_typescript_bindings = "\n\n\n// OUT_TYPESCRIPT_BINDINGS :: MAP_TRAIT :: START\n\n"
 
         constructor_arguments = ""
         super_instantiator = ""
@@ -287,17 +337,71 @@ import * as bindings from '../bindings' // TODO: figure out location
 
         # BUILD INTERFACE METHODS
         out_java_interface = ""
+        out_interface_implementation_overrides = ""
+        java_methods = []
         for fn_line in field_function_lines:
+            java_method_descriptor = ""
             if fn_line.fn_name != "free" and fn_line.fn_name != "clone":
                 out_java_interface += fn_line.fn_name + "("
+                out_interface_implementation_overrides += f"{fn_line.fn_name} ("
 
                 for idx, arg_conv_info in enumerate(fn_line.args_ty):
                     if idx >= 1:
                         out_java_interface += ", "
+                        out_interface_implementation_overrides += ", "
                     out_java_interface += f"{arg_conv_info.arg_name}: {arg_conv_info.java_hu_ty}"
+                    out_interface_implementation_overrides += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
+                    java_method_descriptor += arg_conv_info.java_fn_ty_arg
                 out_java_interface += f"): {fn_line.ret_ty_info.java_hu_ty};\n\t\t\t\t"
+                java_method_descriptor += ")" + fn_line.ret_ty_info.java_fn_ty_arg
+                java_methods.append((fn_line.fn_name, java_method_descriptor))
+
+                out_interface_implementation_overrides += f"): {fn_line.ret_ty_info.java_ty} {{\n"
+
+                interface_method_override_inset = "\t\t\t\t\t\t"
+                interface_implementation_inset = "\t\t\t\t\t\t\t"
+                for arg_info in fn_line.args_ty:
+                    if arg_info.to_hu_conv is not None:
+                        out_interface_implementation_overrides += interface_implementation_inset + arg_info.to_hu_conv.replace("\n", "\n\t\t\t\t") + "\n"
+
+                if fn_line.ret_ty_info.java_ty != "void":
+                    out_interface_implementation_overrides += interface_implementation_inset + fn_line.ret_ty_info.java_hu_ty + " ret = arg." + fn_line.fn_name + "("
+                else:
+                    out_interface_implementation_overrides += f"{interface_implementation_inset}arg." + fn_line.fn_name + "("
 
-        out_java_trait = f"""
+                for idx, arg_info in enumerate(fn_line.args_ty):
+                    if idx != 0:
+                        out_interface_implementation_overrides += ", "
+                    if arg_info.to_hu_conv_name is not None:
+                        out_interface_implementation_overrides += arg_info.to_hu_conv_name
+                    else:
+                        out_interface_implementation_overrides += arg_info.arg_name
+
+                out_interface_implementation_overrides += ");\n"
+                if fn_line.ret_ty_info.java_ty != "void":
+                    if fn_line.ret_ty_info.from_hu_conv is not None:
+                        out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\t" + f"result: {fn_line.ret_ty_info.java_ty} = " + fn_line.ret_ty_info.from_hu_conv[0] + ";\n"
+                        if fn_line.ret_ty_info.from_hu_conv[1] != "":
+                            out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\t" + fn_line.ret_ty_info.from_hu_conv[1].replace("this", "impl_holder.held") + ";\n"
+                        #if fn_line.ret_ty_info.rust_obj in result_types:
+                        # XXX: We need to handle this in conversion logic so that its cross-language!
+                        # Avoid double-free by breaking the result - we should learn to clone these and then we can be safe instead
+                        #    out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\tret.ptr = 0;\n"
+                        out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\treturn result;\n"
+                    else:
+                        out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\treturn ret;\n"
+                out_interface_implementation_overrides += f"{interface_method_override_inset}}},\n\n{interface_method_override_inset}"
+
+        trait_constructor_arguments = ""
+        for var in field_var_conversions:
+            if isinstance(var, ConvInfo):
+                trait_constructor_arguments += ", " + var.arg_name
+            else:
+                trait_constructor_arguments += ", " + var[1] + ".new_impl(" + var[1] + "_impl).bindings_instance"
+
+
+
+        out_typescript_human = f"""
             {self.hu_struct_file_prefix}
             
             export class {struct_name.replace("LDK","")} extends CommonBase {{
@@ -325,9 +429,13 @@ import * as bindings from '../bindings' // TODO: figure out location
                 
                 static new_impl(arg: {struct_name.replace("LDK", "")}Interface{impl_constructor_arguments}): {struct_name.replace("LDK", "")} {{
                     const impl_holder: {struct_name}Holder = new {struct_name}Holder();
-                    impl_holder.held = new {struct_name.replace("LDK", "")} (new bindings.{struct_name}() {{
+                    let structImplementation = <bindings.{struct_name}>{{
+                    
                         // todo: in-line interface filling
-                    }});
+                        
+                        {out_interface_implementation_overrides}
+                    }};
+                    impl_holder.held = new {struct_name.replace("LDK", "")} (null, structImplementation{trait_constructor_arguments});
                 }}
                 
             }}
@@ -344,81 +452,38 @@ import * as bindings from '../bindings' // TODO: figure out location
 
 
 
-        java_trait_constr = ") {\n\t\tfinal " + struct_name + "Holder impl_holder = new " + struct_name + "Holder();\n"
-        java_trait_constr = java_trait_constr + "\t\timpl_holder.held = new " + struct_name.replace("LDK", "") + "(new bindings." + struct_name + "() {\n"
-        out_java = out_java + "\tpublic interface " + struct_name + " {\n"
+        out_typescript_bindings += "\t\texport interface " + struct_name + " {\n"
         java_meths = []
         for fn_line in field_function_lines:
-            java_meth_descr = "("
             if fn_line.fn_name != "free" and fn_line.fn_name != "clone":
-                out_java = out_java + "\t\t " + fn_line.ret_ty_info.java_ty + " " + fn_line.fn_name + "("
-                java_trait_constr = java_trait_constr + "\t\t\t@Override public " + fn_line.ret_ty_info.java_ty + " " + fn_line.fn_name + "("
+                out_typescript_bindings += f"\t\t\t{fn_line.fn_name} ("
 
                 for idx, arg_conv_info in enumerate(fn_line.args_ty):
                     if idx >= 1:
-                        out_java = out_java + ", "
-                        java_trait_constr = java_trait_constr + ", "
-                        # out_java_trait = out_java_trait + ", "
-                    out_java = out_java + arg_conv_info.java_ty + " " + arg_conv_info.arg_name
-                    # out_java_trait = out_java_trait + arg_conv_info.java_hu_ty + " " + arg_conv_info.arg_name
-                    java_trait_constr = java_trait_constr + arg_conv_info.java_ty + " " + arg_conv_info.arg_name
-                    java_meth_descr = java_meth_descr + arg_conv_info.java_fn_ty_arg
-                java_meth_descr = java_meth_descr + ")" + fn_line.ret_ty_info.java_fn_ty_arg
-                java_meths.append((fn_line.fn_name, java_meth_descr))
-
-                out_java = out_java + ");\n"
-                # out_java_trait = out_java_trait + ");\n"
-                java_trait_constr = java_trait_constr + ") {\n"
+                        out_typescript_bindings = out_typescript_bindings + ", "
+                    out_typescript_bindings += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
 
-                for arg_info in fn_line.args_ty:
-                    if arg_info.to_hu_conv is not None:
-                        java_trait_constr = java_trait_constr + "\t\t\t\t" + arg_info.to_hu_conv.replace("\n", "\n\t\t\t\t") + "\n"
+                out_typescript_bindings += f"): {fn_line.ret_ty_info.java_ty};\n"
 
-                if fn_line.ret_ty_info.java_ty != "void":
-                    java_trait_constr = java_trait_constr + "\t\t\t\t" + fn_line.ret_ty_info.java_hu_ty + " ret = arg." + fn_line.fn_name + "("
-                else:
-                    java_trait_constr = java_trait_constr + "\t\t\t\targ." + fn_line.fn_name + "("
+        out_typescript_bindings = out_typescript_bindings + "\t\t}\n\n"
 
-                for idx, arg_info in enumerate(fn_line.args_ty):
-                    if idx != 0:
-                        java_trait_constr = java_trait_constr + ", "
-                    if arg_info.to_hu_conv_name is not None:
-                        java_trait_constr = java_trait_constr + arg_info.to_hu_conv_name
-                    else:
-                        java_trait_constr = java_trait_constr + arg_info.arg_name
-
-                java_trait_constr = java_trait_constr + ");\n"
-                if fn_line.ret_ty_info.java_ty != "void":
-                    if fn_line.ret_ty_info.from_hu_conv is not None:
-                        java_trait_constr = java_trait_constr + "\t\t\t\t" + fn_line.ret_ty_info.java_ty + " result = " + fn_line.ret_ty_info.from_hu_conv[0] + ";\n"
-                        if fn_line.ret_ty_info.from_hu_conv[1] != "":
-                            java_trait_constr = java_trait_constr + "\t\t\t\t" + fn_line.ret_ty_info.from_hu_conv[1].replace("this", "impl_holder.held") + ";\n"
-                        #if fn_line.ret_ty_info.rust_obj in result_types:
-                        # XXX: We need to handle this in conversion logic so that its cross-language!
-                        # Avoid double-free by breaking the result - we should learn to clone these and then we can be safe instead
-                        #    java_trait_constr = java_trait_constr + "\t\t\t\tret.ptr = 0;\n"
-                        java_trait_constr = java_trait_constr + "\t\t\t\treturn result;\n"
-                    else:
-                        java_trait_constr = java_trait_constr + "\t\t\t\treturn ret;\n"
-                java_trait_constr = java_trait_constr + "\t\t\t}\n"
-        java_trait_constr = java_trait_constr + "\t\t}"
+        out_typescript_bindings += f"\t\texport function {struct_name}_new(impl: {struct_name}"
         for var in field_var_conversions:
             if isinstance(var, ConvInfo):
-                java_trait_constr = java_trait_constr + ", " + var.arg_name
+                out_typescript_bindings += f", {var.arg_name}: {var.java_ty}"
             else:
-                java_trait_constr = java_trait_constr + ", " + var[1] + ".new_impl(" + var[1] + "_impl).bindings_instance"
-        out_java_trait += java_trait_constr + ");\n\t\treturn impl_holder.held;\n\t}\n"
-
-        out_java = out_java + "\t}\n"
+                out_typescript_bindings += f", {var[1]}: {var[0]}"
+
+        out_typescript_bindings += f"""): number {{
+            throw new Error('unimplemented'); // TODO: bind to WASM
+        }}
+        
+        export function {struct_name}_get_obj_from_jcalls(val: number): {struct_name} {{
+            throw new Error('unimplemented'); // TODO: bind to WASM
+        }}
+        """
 
-        out_java = out_java + "\tpublic static native long " + struct_name + "_new(" + struct_name + " impl"
-        for var in field_var_conversions:
-            if isinstance(var, ConvInfo):
-                out_java = out_java + ", " + var.java_ty + " " + var.arg_name
-            else:
-                out_java = out_java + ", " + var[0] + " " + var[1]
-        out_java = out_java + ");\n"
-        out_java = out_java + "\tpublic static native " + struct_name + " " + struct_name + "_get_obj_from_jcalls(long val);\n"
+        out_typescript_bindings += '\n// OUT_TYPESCRIPT_BINDINGS :: MAP_TRAIT :: END\n\n\n'
 
         # Now that we've written out our java code (and created java_meths), generate C
         out_c = "typedef struct " + struct_name + "_JCalls {\n"
@@ -574,7 +639,7 @@ import * as bindings from '../bindings' // TODO: figure out location
         out_c = out_c + "}\n"
 
 
-        return (out_java, out_java_trait, out_c)
+        return (out_typescript_bindings, out_typescript_human, out_c)
 
     def map_complex_enum(self, struct_name, variant_list, camel_to_snake):
         java_hu_type = struct_name.replace("LDK", "")