jsgen: start implementing remaining `expr`s and `stmt`s

vlib/v/gen/js/js.v

@@ -4,7 +4,6 @@ import strings
 import v.ast
 import v.table
 import v.pref
-import term
 import v.util
 import v.depgraph
 
@@ -193,7 +192,6 @@ pub fn (g JsGen) hashes() string {
 	return res
 }
 
-
 // V type to JS type
 pub fn (mut g JsGen) typ(t table.Type) string {
 	sym := g.table.get_type_symbol(t)
@@ -382,9 +380,6 @@ fn (mut g JsGen) stmt(node ast.Stmt) {
 	g.stmt_start_pos = g.out.len
 
 	match node {
-		ast.Module {
-			// TODO: Implement namespaces
-		}
 		ast.AssertStmt {
 			g.gen_assert_stmt(it)
 		}
@@ -401,12 +396,15 @@ fn (mut g JsGen) stmt(node ast.Stmt) {
 		ast.BranchStmt {
 			g.gen_branch_stmt(it)
 		}
-		ast.ConstDecl {
+		ast.Comment {
-			g.gen_const_decl(it)
+			// Skip: don't generate comments
 		}
 		ast.CompIf {
 			// skip: JS has no compile time if
 		}
+		ast.ConstDecl {
+			g.gen_const_decl(it)
+		}
 		ast.DeferStmt {
 			g.defer_stmts << *it
 		}
@@ -434,6 +432,9 @@ fn (mut g JsGen) stmt(node ast.Stmt) {
 			g.gen_for_stmt(it)
 			g.writeln('')
 		}
+		ast.GlobalDecl {
+			// TODO
+		}
 		ast.GoStmt {
 			g.gen_go_stmt(it)
 			g.writeln('')
@@ -453,6 +454,9 @@ fn (mut g JsGen) stmt(node ast.Stmt) {
 		ast.InterfaceDecl {
 			// TODO skip: interfaces not implemented yet
 		}
+		ast.Module {
+			// skip: namespacing implemented externally
+		}
 		ast.Return {
 			if g.defer_stmts.len > 0 {
 				g.gen_defer_stmts()
@@ -468,20 +472,32 @@ fn (mut g JsGen) stmt(node ast.Stmt) {
 		ast.UnsafeStmt {
 			g.stmts(it.stmts)
 		}
+		/*
 		else {
 			verror('jsgen.stmt(): bad node ${typeof(node)}')
 		}
+		*/
 	}
 }
 
 fn (mut g JsGen) expr(node ast.Expr) {
 	match node {
+		ast.AnonFn {
+			g.gen_fn_decl(it.decl)
+		}
 		ast.ArrayInit {
 			g.gen_array_init_expr(it)
 		}
+		ast.AsCast {
+			// skip: JS has no types, so no need to cast
+			// TODO: Is jsdoc needed here for TS support?
+		}
 		ast.AssignExpr {
 			g.gen_assign_expr(it)
 		}
+		ast.Assoc {
+			// TODO
+		}
 		ast.BoolLiteral {
 			if it.val == true {
 				g.write('true')
@@ -489,11 +505,18 @@ fn (mut g JsGen) expr(node ast.Expr) {
 				g.write('false')
 			}
 		}
+		ast.CallExpr {
+			g.gen_call_expr(it)
+		}
+		ast.CastExpr {
+			// skip: JS has no types, so no need to cast
+			// TODO: Check if jsdoc is needed for TS support
+		}
 		ast.CharLiteral {
 			g.write("'$it.val'")
 		}
-		ast.CallExpr {
+		ast.ConcatExpr {
-			g.gen_call_expr(it)
+			// TODO
 		}
 		ast.EnumVal {
 			styp := g.typ(it.typ)
@@ -511,123 +534,74 @@ fn (mut g JsGen) expr(node ast.Expr) {
 		ast.IfGuardExpr {
 			// TODO no optionals yet
 		}
-		ast.IntegerLiteral {
+		ast.IndexExpr {
-			g.write(it.val)
+			g.gen_index_expr(it)
 		}
 		ast.InfixExpr {
-			g.expr(it.left)
+			g.gen_infix_expr(it)
-
+		}
-			mut op := it.op.str()
+		ast.IntegerLiteral {
-			// in js == is non-strict & === is strict, always do strict
+			g.write(it.val)
-			if op == '==' { op = '===' }
-			else if op == '!=' { op = '!==' }
-
-			g.write(' $op ')
-			g.expr(it.right)
 		}
 		ast.MapInit {
 			g.gen_map_init_expr(it)
 		}
-		/*
+		ast.MatchExpr {
-		ast.UnaryExpr {
+			// TODO
-			g.expr(it.left)
-			g.write(' $it.op ')
 		}
-		*/
+		ast.None {
-
+			// TODO
-		ast.StringLiteral {
-			g.write('"$it.val"')
 		}
-		ast.StringInterLiteral {
+		ast.OrExpr {
-			g.gen_string_inter_literal(it)
+			// TODO
+		}
+		ast.ParExpr {
+			// TODO
 		}
 		ast.PostfixExpr {
 			g.expr(it.expr)
 			g.write(it.op.str())
 		}
-		ast.StructInit {
+		ast.PrefixExpr {
-			// `user := User{name: 'Bob'}`
+			// TODO
-			g.gen_struct_init(it)
+		}
+		ast.RangeExpr {
+			// Only used in IndexExpr, requires index type info
 		}
 		ast.SelectorExpr {
 			g.gen_selector_expr(it)
 		}
-		ast.AnonFn {
+		ast.SizeOf {
-			g.gen_anon_fn_decl(it)
+			// TODO
 		}
+		ast.StringInterLiteral {
+			g.gen_string_inter_literal(it)
+		}
+		ast.StringLiteral {
+			g.write('"$it.val"')
+		}
+		ast.StructInit {
+			// `user := User{name: 'Bob'}`
+			g.gen_struct_init(it)
+		}
+		ast.Type {
+			// skip: JS has no types
+			// TODO maybe?
+		}
+		ast.TypeOf {
+			g.gen_typeof_expr(it)
+			// TODO: Should this print the V type or the JS type?
+		}
+		/*
 		else {
-			println(term.red('jsgen.expr(): bad node "${typeof(node)}"'))
+			println(term.red('jsgen.expr(): unhandled node "${typeof(node)}"'))
 		}
+		*/
 	}
 }
 
-fn (mut g JsGen) gen_string_inter_literal(it ast.StringInterLiteral) {
-	g.write('tos3(`')
-	for i, val in it.vals {
-		escaped_val := val.replace_each(['`', '\`', '\r\n', '\n'])
-		g.write(escaped_val)
-		if i >= it.exprs.len {
-			continue
-		}
-		expr := it.exprs[i]
-		sfmt := it.expr_fmts[i]
-		g.write('\${')
-		if sfmt.len > 0 {
-			fspec := sfmt[sfmt.len - 1]
-			if fspec == `s` && it.expr_types[i] == table.string_type {
-				g.expr(expr)
-				g.write('.str')
-			} else {
-				g.expr(expr)
-			}
-		} else if it.expr_types[i] == table.string_type {
-			// `name.str`
-			g.expr(expr)
-			g.write('.str')
-		} else if it.expr_types[i] == table.bool_type {
-			// `expr ? "true" : "false"`
-			g.expr(expr)
-			g.write(' ? "true" : "false"')
-		} else {
-			sym := g.table.get_type_symbol(it.expr_types[i])
-
-			match sym.kind {
-				.struct_ {
-					g.expr(expr)
-					if sym.has_method('str') {
-						g.write('.str()')
-					}
-				}
-				else {
-					g.expr(expr)
-				}
-			}
-		}
-		g.write('}')
-	}
-	g.write('`)')
-}
-
-fn (mut g JsGen) gen_import_stmt(it ast.Import) {
-	mut imports := g.namespace_imports[g.namespace]
-	imports[it.mod] = it.alias
-	g.namespace_imports[g.namespace] = imports
-}
-
-fn (mut g JsGen) gen_array_init_expr(it ast.ArrayInit) {
-	type_sym := g.table.get_type_symbol(it.typ)
-	if type_sym.kind != .array_fixed {
-		g.write('[')
-		for i, expr in it.exprs {
-			g.expr(expr)
-			if i < it.exprs.len - 1 {
-				g.write(', ')
-			}
-		}
-		g.write(']')
-	} else {}
-}
 
+// TODO
 fn (mut g JsGen) gen_assert_stmt(a ast.AssertStmt) {
 	g.writeln('// assert')
 	g.write('if( ')
@@ -713,12 +687,6 @@ fn (mut g JsGen) gen_assign_stmt(it ast.AssignStmt) {
 	}
 }
 
-fn (mut g JsGen) gen_assign_expr(it ast.AssignExpr) {
-	g.expr(it.left)
-	g.write(' $it.op ')
-	g.expr(it.val)
-}
-
 fn (mut g JsGen) gen_attr(it ast.Attr) {
 	g.writeln('/* [$it.name] */')
 }
@@ -807,8 +775,12 @@ fn (mut g JsGen) gen_fn_decl(it ast.FnDecl) {
 	g.gen_method_decl(it)
 }
 
-fn (mut g JsGen) gen_anon_fn_decl(it ast.AnonFn) {
+fn fn_has_go(it ast.FnDecl) bool {
-	g.gen_method_decl(it.decl)
+	mut has_go := false
+	for stmt in it.stmts {
+		if stmt is ast.GoStmt { has_go = true }
+	}
+	return has_go
 }
 
 fn (mut g JsGen) gen_method_decl(it ast.FnDecl) {
@@ -875,6 +847,23 @@ fn (mut g JsGen) gen_method_decl(it ast.FnDecl) {
 	g.fn_decl = 0
 }
 
+fn (mut g JsGen) fn_args(args []table.Arg, is_variadic bool) {
+	// no_names := args.len > 0 && args[0].name == 'arg_1'
+	for i, arg in args {
+		name := g.js_name(arg.name)
+		is_varg := i == args.len - 1 && is_variadic
+		if is_varg {
+			g.write('...$name')
+		} else {
+			g.write(name)
+		}
+		// if its not the last argument
+		if i < args.len - 1 {
+			g.write(', ')
+		}
+	}
+}
+
 fn (mut g JsGen) gen_for_c_stmt(it ast.ForCStmt) {
 	g.inside_loop = true
 	g.write('for (')
@@ -961,23 +950,6 @@ fn (mut g JsGen) gen_for_stmt(it ast.ForStmt) {
 	g.writeln('}')
 }
 
-fn (mut g JsGen) fn_args(args []table.Arg, is_variadic bool) {
-	// no_names := args.len > 0 && args[0].name == 'arg_1'
-	for i, arg in args {
-		name := g.js_name(arg.name)
-		is_varg := i == args.len - 1 && is_variadic
-		if is_varg {
-			g.write('...$name')
-		} else {
-			g.write(name)
-		}
-		// if its not the last argument
-		if i < args.len - 1 {
-			g.write(', ')
-		}
-	}
-}
-
 fn (mut g JsGen) gen_go_stmt(node ast.GoStmt) {
 	// x := node.call_expr as ast.CallEpxr // TODO
 	match node.call_expr {
@@ -1005,39 +977,21 @@ fn (mut g JsGen) gen_go_stmt(node ast.GoStmt) {
 	}
 }
 
-fn (mut g JsGen) gen_map_init_expr(it ast.MapInit) {
+fn (mut g JsGen) gen_import_stmt(it ast.Import) {
-	// key_typ_sym := g.table.get_type_symbol(it.key_type)
+	mut imports := g.namespace_imports[g.namespace]
-	// value_typ_sym := g.table.get_type_symbol(it.value_type)
+	imports[it.mod] = it.alias
-	// key_typ_str := key_typ_sym.name.replace('.', '__')
+	g.namespace_imports[g.namespace] = imports
-	// value_typ_str := value_typ_sym.name.replace('.', '__')
-	if it.vals.len > 0 {
-		g.writeln('new Map([')
-		g.inc_indent()
-		for i, key in it.keys {
-			val := it.vals[i]
-			g.write('[')
-			g.expr(key)
-			g.write(', ')
-			g.expr(val)
-			g.write(']')
-			if i < it.keys.len - 1 {
-				g.write(',')
-			}
-			g.writeln('')
-		}
-		g.dec_indent()
-		g.write('])')
-	} else {
-		g.write('new Map()')
-	}
 }
 
 fn (mut g JsGen) gen_return_stmt(it ast.Return) {
-	g.write('return ')
-
 	if it.exprs.len == 0 {
 		// Returns nothing
-	} else if it.exprs.len == 1 {
+		g.write('return;')
+		return
+	}
+
+	g.write('return ')
+	if it.exprs.len == 1 {
 		g.expr(it.exprs[0])
 	} else {
 		// Multi return
@@ -1053,13 +1007,6 @@ fn (mut g JsGen) gen_return_stmt(it ast.Return) {
 	g.writeln(';')
 }
 
-fn (mut g JsGen) enum_expr(node ast.Expr) {
-	match node {
-		ast.EnumVal { g.write(it.val) }
-		else { g.expr(node) }
-	}
-}
-
 fn (mut g JsGen) gen_struct_decl(node ast.StructDecl) {
 	g.writeln(g.doc.gen_fac_fn(node.fields))
 	g.write('function ${g.js_name(node.name)}({ ')
@@ -1104,37 +1051,24 @@ fn (mut g JsGen) gen_struct_decl(node ast.StructDecl) {
 	}
 }
 
-fn (mut g JsGen) gen_struct_init(it ast.StructInit) {
+fn (mut g JsGen) gen_array_init_expr(it ast.ArrayInit) {
 	type_sym := g.table.get_type_symbol(it.typ)
-	name := type_sym.name
+	if type_sym.kind != .array_fixed {
-	if it.fields.len == 0 {
+		g.write('[')
-		g.write('new ${g.js_name(name)}({})')
+		for i, expr in it.exprs {
-	} else {
+			g.expr(expr)
-		g.writeln('new ${g.js_name(name)}({')
+			if i < it.exprs.len - 1 {
-		g.inc_indent()
-		for i, field in it.fields {
-			g.write('$field.name: ')
-			g.expr(field.expr)
-			if i < it.fields.len - 1 {
 				g.write(', ')
 			}
-			g.writeln('')
-		}
-		g.dec_indent()
-		g.write('})')
 		}
+		g.write(']')
+	} else {}
 }
 
-fn (mut g JsGen) gen_ident(node ast.Ident) {
+fn (mut g JsGen) gen_assign_expr(it ast.AssignExpr) {
-	if node.kind == .constant {
+	g.expr(it.left)
-		// TODO: Handle const namespacing: only consts in the main module are handled rn
+	g.write(' $it.op ')
-		g.write('_CONSTS.')
+	g.expr(it.val)
-	}
-
-	name := g.js_name(node.name)
-	// TODO `is`
-	// TODO handle optionals
-	g.write(name)
 }
 
 fn (mut g JsGen) gen_call_expr(it ast.CallExpr) {
@@ -1163,9 +1097,16 @@ fn (mut g JsGen) gen_call_expr(it ast.CallExpr) {
 	g.write(')')
 }
 
-fn (mut g JsGen) gen_selector_expr(it ast.SelectorExpr) {
+fn (mut g JsGen) gen_ident(node ast.Ident) {
-	g.expr(it.expr)
+	if node.kind == .constant {
-	g.write('.$it.field_name')
+		// TODO: Handle const namespacing: only consts in the main module are handled rn
+		g.write('_CONSTS.')
+	}
+
+	name := g.js_name(node.name)
+	// TODO `is`
+	// TODO handle optionals
+	g.write(name)
 }
 
 fn (mut g JsGen) gen_if_expr(node ast.IfExpr) {
@@ -1223,14 +1164,172 @@ fn (mut g JsGen) gen_if_expr(node ast.IfExpr) {
 	}
 }
 
-fn verror(s string) {
+fn (mut g JsGen) gen_index_expr(it ast.IndexExpr) {
-	util.verror('jsgen error', s)
+	// TODO: Handle splice setting if it's implemented
+	if it.index is ast.RangeExpr {
+		range := it.index as ast.RangeExpr
+		g.expr(it.left)
+		g.write('.slice(')
+		if range.has_low {
+			g.expr(range.low)
+		} else {
+			g.write('0')
+		}
+		g.write(', ')
+		if range.has_high {
+			g.expr(range.high)
+		} else {
+			g.expr(it.left)
+			g.write('.length')
+		}
+		g.write(')')
+	} else {
+		// TODO Does this work in all cases?
+		g.expr(it.left)
+		g.write('[')
+		g.expr(it.index)
+		g.write(']')
+	}
 }
 
-fn fn_has_go(it ast.FnDecl) bool {
+fn (mut g JsGen) gen_infix_expr(it ast.InfixExpr) {
-	mut has_go := false
+	g.expr(it.left)
-	for stmt in it.stmts {
+
-		if stmt is ast.GoStmt { has_go = true }
+	mut op := it.op.str()
-	}
+	// in js == is non-strict & === is strict, always do strict
-	return has_go
+	if op == '==' { op = '===' }
+	else if op == '!=' { op = '!==' }
+
+	g.write(' $op ')
+	g.expr(it.right)
+}
+
+
+fn (mut g JsGen) gen_map_init_expr(it ast.MapInit) {
+	// key_typ_sym := g.table.get_type_symbol(it.key_type)
+	// value_typ_sym := g.table.get_type_symbol(it.value_type)
+	// key_typ_str := key_typ_sym.name.replace('.', '__')
+	// value_typ_str := value_typ_sym.name.replace('.', '__')
+	if it.vals.len > 0 {
+		g.writeln('new Map([')
+		g.inc_indent()
+		for i, key in it.keys {
+			val := it.vals[i]
+			g.write('[')
+			g.expr(key)
+			g.write(', ')
+			g.expr(val)
+			g.write(']')
+			if i < it.keys.len - 1 {
+				g.write(',')
+			}
+			g.writeln('')
+		}
+		g.dec_indent()
+		g.write('])')
+	} else {
+		g.write('new Map()')
+	}
+}
+
+fn (mut g JsGen) gen_selector_expr(it ast.SelectorExpr) {
+	g.expr(it.expr)
+	g.write('.$it.field_name')
+}
+
+fn (mut g JsGen) gen_string_inter_literal(it ast.StringInterLiteral) {
+	// TODO Implement `tos3`
+	g.write('tos3(`')
+	for i, val in it.vals {
+		escaped_val := val.replace_each(['`', '\`', '\r\n', '\n'])
+		g.write(escaped_val)
+		if i >= it.exprs.len {
+			continue
+		}
+		expr := it.exprs[i]
+		sfmt := it.expr_fmts[i]
+		g.write('\${')
+		if sfmt.len > 0 {
+			fspec := sfmt[sfmt.len - 1]
+			if fspec == `s` && it.expr_types[i] == table.string_type {
+				g.expr(expr)
+				g.write('.str')
+			} else {
+				g.expr(expr)
+			}
+		} else if it.expr_types[i] == table.string_type {
+			// `name.str`
+			g.expr(expr)
+			g.write('.str')
+		} else if it.expr_types[i] == table.bool_type {
+			// `expr ? "true" : "false"`
+			g.expr(expr)
+			g.write(' ? "true" : "false"')
+		} else {
+			sym := g.table.get_type_symbol(it.expr_types[i])
+
+			match sym.kind {
+				.struct_ {
+					g.expr(expr)
+					if sym.has_method('str') {
+						g.write('.str()')
+					}
+				}
+				else {
+					g.expr(expr)
+				}
+			}
+		}
+		g.write('}')
+	}
+	g.write('`)')
+}
+
+fn (mut g JsGen) gen_struct_init(it ast.StructInit) {
+	type_sym := g.table.get_type_symbol(it.typ)
+	name := type_sym.name
+	if it.fields.len == 0 {
+		g.write('new ${g.js_name(name)}({})')
+	} else {
+		g.writeln('new ${g.js_name(name)}({')
+		g.inc_indent()
+		for i, field in it.fields {
+			g.write('$field.name: ')
+			g.expr(field.expr)
+			if i < it.fields.len - 1 {
+				g.write(',')
+			}
+			g.writeln('')
+		}
+		g.dec_indent()
+		g.write('})')
+	}
+}
+
+fn (mut g JsGen) gen_typeof_expr(it ast.TypeOf) {
+	sym := g.table.get_type_symbol(it.expr_type)
+	if sym.kind == .sum_type {
+		// TODO: JS sumtypes not implemented yet
+	} else if sym.kind == .array_fixed {
+		fixed_info := sym.info as table.ArrayFixed
+		typ_name := g.table.get_type_name(fixed_info.elem_type)
+		g.write('"[$fixed_info.size]${typ_name}"')
+	} else if sym.kind == .function {
+		info := sym.info as table.FnType
+		fn_info := info.func
+		mut repr := 'fn ('
+		for i, arg in fn_info.args {
+			if i > 0 {
+				repr += ', '
+			}
+			repr += g.table.get_type_name(arg.typ)
+		}
+		repr += ')'
+		if fn_info.return_type != table.void_type {
+			repr += ' ${g.table.get_type_name(fn_info.return_type)}'
+		}
+		g.write('"$repr"')
+	} else {
+		g.write('"${sym.name}"')
+	}
 }

vlib/v/gen/js/tests/array.js

@@ -0,0 +1,92 @@
+// V_COMMIT_HASH 0de70e8
+// V_CURRENT_COMMIT_HASH 4271eb4
+// Generated by the V compiler
+
+"use strict";
+
+/** @namespace builtin */
+const builtin = (function () {
+	/**
+	 * @param {any} s
+	 * @returns {void}
+	 * @function
+	*/
+	function println(s) {
+		console.log(s);
+	}
+	
+	/**
+	 * @param {any} s
+	 * @returns {void}
+	 * @function
+	*/
+	function print(s) {
+		process.stdout.write(s);
+	}
+
+	/* module exports */
+	return {
+		println,
+		print,
+	};
+})();
+
+/** @namespace main */
+const main = (function () {
+	/**
+	 * @param {...number} args
+	 * @returns {void}
+	 * @function
+	*/
+	function variadic(...args) {
+		builtin.println(args);
+		builtin.println(args[0]);
+		builtin.println(args[1]);
+	}
+	
+	/**
+	 * @returns {void}
+	 * @function
+	*/
+	function vararg_test() {
+		variadic(1, 2, 3);
+	}
+	
+	/* program entry point */
+	(function() {
+		vararg_test();
+		/** @type {string[]} - arr1 */
+		const arr1 = ["Hello", "JS", "Backend"];
+		/** @type {number[]} - arr2 */
+		let arr2 = [1, 2, 3, 4, 5];
+		/** @type {string[]} - slice1 */
+		const slice1 = arr1.slice(1, 3);
+		/** @type {number[]} - slice2 */
+		const slice2 = arr2.slice(0, 3);
+		/** @type {number[]} - slice3 */
+		const slice3 = arr2.slice(3, arr2.length);
+		/** @type {string} - idx1 */
+		const idx1 = slice1[1];
+		arr2[0] = 1;
+		arr2[0 + 1] = 2;
+		builtin.println(arr2);
+		/** @type {string} - slice4 */
+		const slice4 = idx1.slice(0, 4);
+		builtin.println(slice4);
+		/** @type {byte} - idx2 */
+		const idx2 = slice4[0];
+		/** @type {Map<string, string>} - m */
+		let m = new Map();
+		/** @type {string} - key */
+		const key = "key";
+		m[key] = "value";
+		/** @type {string} - val */
+		const val = m["key"];
+		builtin.println(val);
+	})();
+
+	/* module exports */
+	return {};
+})();
+
+

vlib/v/gen/js/tests/array.v

@@ -0,0 +1,44 @@
+fn variadic(args ...int) {
+	println(args)
+	println(args[0])
+	println(args[1])
+}
+
+fn vararg_test() {
+	variadic(1, 2, 3)
+}
+
+vararg_test()
+
+arr1 := ['Hello', 'JS', 'Backend']
+mut arr2 := [1, 2, 3, 4, 5]
+
+// Array slices
+slice1 := arr1[1..3]
+slice2 := arr2[..3]
+slice3 := arr2[3..]
+
+// Array indexes
+idx1 := slice1[1]
+arr2[0] = 1
+arr2[0 + 1] = 2
+println(arr2)
+
+// String slices
+slice4 := idx1[..4]
+println(slice4) // 'Back'
+
+// String indexes
+idx2 := slice4[0]
+
+// TODO: This does not work for now
+// arr2[0..1] = arr2[3..4]
+// println(arr2)
+
+
+// Maps
+mut m := map[string]string
+key := 'key'
+m[key] = 'value'
+val := m['key']
+println(val)

vlib/v/gen/js/tests/js.js

@@ -1,5 +1,5 @@
-// V_COMMIT_HASH 74686d0
+// V_COMMIT_HASH 0de70e8
-// V_CURRENT_COMMIT_HASH 0d3f133
+// V_CURRENT_COMMIT_HASH 4271eb4
 // Generated by the V compiler
 
 "use strict";
@@ -11,51 +11,81 @@ const _CONSTS = Object.freeze({
 	v_super: "amazing keyword"
 });
 
-/* namespace: hello */
+/** @namespace builtin */
+const builtin = (function () {
+	/**
+	 * @param {any} s
+	 * @returns {void}
+	 * @function
+	*/
+	function println(s) {
+		console.log(s);
+	}
+	
+	/**
+	 * @param {any} s
+	 * @returns {void}
+	 * @function
+	*/
+	function print(s) {
+		process.stdout.write(s);
+	}
+
+	/* module exports */
+	return {
+		println,
+		print,
+	};
+})();
+
+/** @namespace hello */
 const hello = (function () {
-	class A {
 	/**
 	 * @param {{foo?: string}} values - values for this class fields
 	 * @constructor
 	*/
-		constructor(values) {
+	function A({ foo = "" }) {
-			this.foo = values.foo
+		this.foo = foo
-		}
+	};
-		
+	A.prototype = {
+		/** @type {string} - foo */
+		foo: "",
 		/**
 		 * @param {string} s
 		 * @returns {void}
+		 * @function
 		*/
 		update(s) {
 			const a = this;
 			a.foo = s;
 		}
-	}
+	};
 
 	
-	class B {
 	/**
 	 * @param {{}} values - values for this class fields
 	 * @constructor
 	*/
-		constructor(values) {
+	function B({  }) {
-		}
+	};
-	}
+	B.prototype = {
+	};
 
 	const C = Object.freeze({
 	});
 	
 	/**
 	 * @returns {string}
+	 * @function
 	*/
 	function v_debugger() {
-		const v = new B({
+		const v = new B({});
-		});
 		return "Hello";
 	}
 	
 	/**
 	 * @returns {string}
+	 * @function
 	*/
 	function excited() {
 		return v_debugger() + "!";
@@ -70,31 +100,39 @@ const hello = (function () {
 	};
 })();
 
-/* namespace: main */
+/** @namespace main */
 const main = (function (hl) {
-	class Foo {
 	/**
 	 * @param {{a?: hl["A"]["prototype"]}} values - values for this class fields
 	 * @constructor
 	*/
-		constructor(values) {
+	function Foo({ a = {} }) {
-			this.a = values.a
+		this.a = a
-		}
+	};
-	}
+	Foo.prototype = {
+		/** @type {hl["A"]["prototype"]} - a */
+		a: {}
+	};
 
-	class Companies {
 	/**
 	 * @param {{google?: number, amazon?: boolean, yahoo?: string}} values - values for this class fields
 	 * @constructor
 	*/
-		constructor(values) {
+	function Companies({ google = 0, amazon = false, yahoo = "" }) {
-			this.google = values.google
+		this.google = google
-			this.amazon = values.amazon
+		this.amazon = amazon
-			this.yahoo = values.yahoo
+		this.yahoo = yahoo
-		}
+	};
-		
+	Companies.prototype = {
+		/** @type {number} - google */
+		google: 0,
+		/** @type {boolean} - amazon */
+		amazon: false,
+		/** @type {string} - yahoo */
+		yahoo: "",
 		/**
 		 * @returns {number}
+		 * @function
 		*/
 		method() {
 			const it = this;
@@ -112,7 +150,7 @@ const main = (function (hl) {
 			
 			return 0;
 		}
-	}
+	};
 
 	const POSITION = Object.freeze({
 		go_back: 0,
@@ -123,6 +161,7 @@ const main = (function (hl) {
 	 * @param {string} v_extends
 	 * @param {number} v_instanceof
 	 * @returns {void}
+	 * @function
 	*/
 	function v_class(v_extends, v_instanceof) {
 		/** @type {number} - v_delete */
@@ -131,22 +170,20 @@ const main = (function (hl) {
 	
 	/* program entry point */
 	(async function() {
-		console.log("Hello from V.js!");
+		builtin.println("Hello from V.js!");
 		/** @type {number} - a */
 		let a = 1;
 		a *= 2;
 		a += 3;
-		console.log(a, " ==  5");
+		builtin.println(a);
-		const b = new hl.A({
+		const b = new hl.A({});
-		});
 		b.update("an update");
-		console.log(b);
+		builtin.println(b);
 		const c = new Foo({
-			a: new hl.A({
+			a: new hl.A({})
-			})
 		});
 		c.a.update("another update");
-		console.log(c);
+		builtin.println(c);
 		/** @type {string} - v */
 		const v = "done";
 		{
@@ -198,11 +235,11 @@ const main = (function (hl) {
 		
 		/** @type {(number: number) => void} - fn_in_var */
 		const fn_in_var = function (number) {
-			console.log(tos3(`number: ${number}`));
+			builtin.println(tos3(`number: ${number}`));
 		};
 		hl.v_debugger();
 		anon_consumer(hl.excited(), function (message) {
-			console.log(message);
+			builtin.println(message);
 		});
 	})();
 	
@@ -210,6 +247,7 @@ const main = (function (hl) {
 	 * @param {string} greeting
 	 * @param {(message: string) => void} anon
 	 * @returns {void}
+	 * @function
 	*/
 	function anon_consumer(greeting, anon) {
 		anon(greeting);
@@ -219,6 +257,7 @@ const main = (function (hl) {
 	 * @param {number} num
 	 * @param {string} def
 	 * @returns {void}
+	 * @function
 	*/
 	function async(num, def) {
 	}
@@ -230,6 +269,7 @@ const main = (function (hl) {
 	 * @param {number} game_on
 	 * @param {...string} dummy
 	 * @returns {[number, number]}
+	 * @function
 	*/
 	function hello(game_on, ...dummy) {
 		for (let _tmp2 = 0; _tmp2 < dummy.length; ++_tmp2) {
@@ -246,8 +286,7 @@ const main = (function (hl) {
 	}
 
 	/* module exports */
-	return {
+	return {};
-	};
 })(hello);
 
 

vlib/v/gen/js/tests/js.v

@@ -1,7 +1,6 @@
 import hello as hl
 
 fn JS.alert(arg string)
-fn JS.console.log(arg string)
 
 const (
     i_am_a_const = 21214
@@ -29,20 +28,20 @@ fn class(extends string, instanceof int) {
 
 
 fn main() {
-    JS.console.log('Hello from V.js!')
+    println('Hello from V.js!')
 
     mut a := 1
     a *= 2
     a += 3
-    JS.console.log(a, ' ==  5') // TODO: Handle string interpolation
+    println(a) // TODO: Handle string interpolation
 
     b := hl.A{}
     b.update('an update')
-    JS.console.log(b)
+    println(b)
 
     c := Foo{ hl.A{} }
     c.a.update('another update')
-    JS.console.log(c)
+    println(c)
 
     v := "done"
     {
@@ -81,12 +80,12 @@ fn main() {
     go async(0, "hello")
 
     fn_in_var := fn (number int) {
-        JS.console.log("number: $number")
+        println("number: $number")
     }
 
     hl.debugger()
     anon_consumer(hl.excited(), fn (message string) {
-        JS.console.log(message)
+        println(message)
     })
 }