jsgen: prefix JS keywords with 'v_'
spaceface777
GitHub
parent
8500c8885c
commit
8de6da01d6
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@ -8,8 +8,12 @@ import term
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import v.util
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const (
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//TODO
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js_reserved = ['delete', 'const', 'let', 'var', 'function', 'continue', 'break', 'switch', 'for', 'in', 'of', 'instanceof', 'typeof', 'do']
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// https://ecma-international.org/ecma-262/#sec-reserved-words
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js_reserved = ['await', 'break', 'case', 'catch', 'class', 'const', 'continue', 'debugger',
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'default', 'delete', 'do', 'else', 'enum', 'export', 'extends', 'finally', 'for', 'function',
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'if', 'implements', 'import', 'in', 'instanceof', 'interface', 'let', 'new', 'package', 'private',
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'protected', 'public', 'return', 'static', 'super', 'switch', 'this', 'throw', 'try', 'typeof',
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'var', 'void', 'while', 'with', 'yield']
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tabs = ['', '\t', '\t\t', '\t\t\t', '\t\t\t\t', '\t\t\t\t\t', '\t\t\t\t\t\t', '\t\t\t\t\t\t\t', '\t\t\t\t\t\t\t\t']
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)
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@ -95,7 +99,6 @@ pub fn (g mut JsGen) enter_namespace(n string) {
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g.indents[g.namespace] = 0
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g.out.writeln('const $n = (function () {')
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}
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//
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else {
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g.out = g.namespaces[g.namespace]
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}
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@ -107,10 +110,7 @@ pub fn (g mut JsGen) escape_namespace() {
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}
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pub fn (g mut JsGen) push_pub_var(s string) {
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// Workaround until `m[key]<<val` works.
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mut arr := g.namespaces_pub[g.namespace]
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arr << s
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g.namespaces_pub[g.namespace] = arr
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g.namespaces_pub[g.namespace] << s
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}
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pub fn (g mut JsGen) find_class_methods(stmts []ast.Stmt) {
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@ -207,11 +207,11 @@ pub fn (g mut JsGen) gen_indent() {
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}
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pub fn (g mut JsGen) inc_indent() {
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g.indents[g.namespace] = g.indents[g.namespace] + 1
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g.indents[g.namespace]++
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}
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pub fn (g mut JsGen) dec_indent() {
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g.indents[g.namespace] = g.indents[g.namespace] - 1
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g.indents[g.namespace]--
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}
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pub fn (g mut JsGen) write(s string) {
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@ -227,7 +227,16 @@ pub fn (g mut JsGen) writeln(s string) {
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pub fn (g mut JsGen) new_tmp_var() string {
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g.tmp_count++
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return 'tmp$g.tmp_count'
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return '_tmp$g.tmp_count'
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}
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[inline]
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fn js_name(name_ string) string {
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name := name_.replace('.', '__')
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if name in js_reserved {
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return 'v_$name'
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}
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return name
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}
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fn (g mut JsGen) stmts(stmts []ast.Stmt) {
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@ -299,7 +308,7 @@ fn (g mut JsGen) stmt(node ast.Stmt) {
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g.writeln('')
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}
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ast.GotoLabel {
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g.writeln('$it.name:')
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g.writeln('${js_name(it.name)}:')
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}
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ast.GotoStmt {
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// skip: JS has no goto
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@ -354,7 +363,7 @@ fn (g mut JsGen) expr(node ast.Expr) {
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// example: foo.bar.baz()
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g.write('.')
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}
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g.write('${it.name}(')
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g.write('${js_name(it.name)}(')
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for i, arg in it.args {
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g.expr(arg.expr)
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if i != it.args.len - 1 {
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@ -421,7 +430,7 @@ fn (g mut JsGen) expr(node ast.Expr) {
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g.gen_selector_expr(it)
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}
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else {
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println(term.red('jsgen.expr(): bad node'))
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println(term.red('jsgen.expr(): bad node "${typeof(node)}"'))
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}
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}
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}
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@ -522,7 +531,7 @@ fn (g mut JsGen) gen_assign_stmt(it ast.AssignStmt) {
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styp := g.typ(ident_var_info.typ)
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jsdoc.write(styp)
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stmt.write('$ident.name')
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stmt.write(js_name(ident.name))
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if i < it.left.len - 1 {
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jsdoc.write(', ')
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@ -564,7 +573,7 @@ fn (g mut JsGen) gen_assign_stmt(it ast.AssignStmt) {
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g.write('const ')
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}
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g.write('$ident.name = ')
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g.write('${js_name(ident.name)} = ')
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g.expr(val)
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if g.inside_loop {
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@ -604,7 +613,7 @@ fn (g mut JsGen) gen_const_decl(it ast.ConstDecl) {
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g.constants.write('\t')
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g.constants.writeln(g.doc.gen_typ(typ, field.name))
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g.constants.write('\t')
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g.constants.write('$field.name: $val')
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g.constants.write('${js_name(field.name)}: $val')
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if i < it.fields.len - 1 {
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g.constants.writeln(',')
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}
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@ -621,7 +630,7 @@ fn (g mut JsGen) gen_defer_stmts() {
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}
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fn (g mut JsGen) gen_enum_decl(it ast.EnumDecl) {
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g.writeln('const $it.name = Object.freeze({')
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g.writeln('const ${js_name(it.name)} = Object.freeze({')
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g.inc_indent()
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for i, field in it.fields {
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g.write('$field.name: ')
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@ -682,7 +691,7 @@ fn (g mut JsGen) gen_method_decl(it ast.FnDecl) {
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}
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g.write('function(')
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} else {
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mut name := it.name
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mut name := js_name(it.name)
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c := name[0]
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if c in [`+`, `-`, `*`, `/`] {
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name = util.replace_op(name)
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@ -818,11 +827,12 @@ fn (g mut JsGen) gen_for_stmt(it ast.ForStmt) {
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fn (g mut JsGen) fn_args(args []table.Arg, is_variadic bool) {
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// no_names := args.len > 0 && args[0].name == 'arg_1'
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for i, arg in args {
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name := js_name(arg.name)
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is_varg := i == args.len - 1 && is_variadic
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if is_varg {
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g.write('...$arg.name')
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g.write('...$name')
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} else {
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g.write(arg.name)
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g.write(name)
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}
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// if its not the last argument
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if i < args.len - 1 {
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@ -911,7 +921,6 @@ fn (g mut JsGen) gen_return_stmt(it ast.Return) {
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g.writeln(';')
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}
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fn (g mut JsGen) enum_expr(node ast.Expr) {
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match node {
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ast.EnumVal {
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@ -924,7 +933,7 @@ fn (g mut JsGen) enum_expr(node ast.Expr) {
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}
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fn (g mut JsGen) gen_struct_decl(node ast.StructDecl) {
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g.writeln('class $node.name {')
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g.writeln('class ${js_name(node.name)} {')
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g.inc_indent()
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g.writeln(g.doc.gen_ctor(node.fields))
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g.writeln('constructor(values) {')
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@ -980,7 +989,7 @@ fn (g mut JsGen) gen_ident(node ast.Ident) {
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}
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// TODO js_name
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name := node.name
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name := js_name(node.name)
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// TODO `is`
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// TODO handle optionals
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g.write(name)
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@ -45,7 +45,7 @@ fn (mut d JsDoc) gen_typ(typ, name string) string {
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d.write('/**')
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d.write(' @type {$typ}')
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if name.len > 0 {
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d.write(' - $name')
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d.write(' - ${js_name(name)}')
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}
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d.write(' */')
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return d.out.str()
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@ -77,10 +77,11 @@ fn (mut d JsDoc) gen_fn(it ast.FnDecl) string {
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}
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arg_type_name := d.gen.typ(arg.typ)
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is_varg := i == it.args.len - 1 && it.is_variadic
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name := js_name(arg.name)
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if is_varg {
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d.writeln('* @param {...$arg_type_name} $arg.name')
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d.writeln('* @param {...$arg_type_name} $name')
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} else {
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d.writeln('* @param {$arg_type_name} $arg.name')
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d.writeln('* @param {$arg_type_name} $name')
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}
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}
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d.writeln('* @return {$type_name}')
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@ -1,14 +1,18 @@
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// V_COMMIT_HASH 83289d7
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// V_CURRENT_COMMIT_HASH fc7e64b
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// V_COMMIT_HASH d60233b
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// V_CURRENT_COMMIT_HASH fc520d9
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// Generated by the V compiler
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"use strict";
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const CONSTANTS = Object.freeze({
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/** @type {number} - i_am_a_const */
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i_am_a_const: 21214
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i_am_a_const: 21214,
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/** @type {string} - v_super */
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v_super: "amazing keyword"
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});
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/* namespace: main */
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const main = (function () {
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class Companies {
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/**
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* @param {{google: number, amazon: boolean, yahoo: string}} values - values for this class fields
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@ -39,15 +43,24 @@ class Companies {
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return 0;
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}
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}
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const POSITION = Object.freeze({
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go_back: 0,
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dont_go_back: 1,
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});
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}
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const POSITION = Object.freeze({
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GO_BACK: 0,
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DONT_GO_BACK: 1,
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});
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/**
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* @param {string} v_extends
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* @param {number} v_instanceof
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* @return {void}
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*/
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function v_class(v_extends, v_instanceof) {
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/** @type {number} - v_delete */
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const v_delete = v_instanceof;
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}
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/* program entry point */
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(async function() {
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/* program entry point */
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(async function() {
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/** @type {string} - v */
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const v = "done";
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{
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@ -56,7 +69,13 @@ const POSITION = Object.freeze({
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}
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/** @type {number} - pos */
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const pos = POSITION.GO_BACK;
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const pos = POSITION.go_back;
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/** @type {string} - v_debugger */
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const v_debugger = "JS keyword";
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/** @type {string} - v_await */
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const v_await = CONSTANTS.v_super + v_debugger;
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/** @type {string} - v_finally */
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let v_finally = "implemented";
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/** @type {number} - dun */
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const dun = CONSTANTS.i_am_a_const * 20;
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for (let i = 0; i < 10; i++) {
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@ -71,8 +90,8 @@ const POSITION = Object.freeze({
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/** @type {number[]} - arr */
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const arr = [1, 2, 3, 4, 5];
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for (let tmp1 = 0; tmp1 < arr.length; ++tmp1) {
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let a = arr[tmp1];
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for (let _tmp1 = 0; _tmp1 < arr.length; ++_tmp1) {
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let a = arr[_tmp1];
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}
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/** @type {Map<string, string>} - ma */
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@ -90,38 +109,39 @@ const POSITION = Object.freeze({
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resolve();
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});
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})();
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})();
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/**
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* @param {number} num
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* @param {string} def
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* @return {void}
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*/
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function async(num, def) {
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}
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/**
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* @param {number} num
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* @param {string} def
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* @return {void}
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*/
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function async(num, def) {
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}
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/* [inline] */
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/**
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* @param {number} game_on
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* @param {...string} dummy
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* @return {multi_return_int_int}
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*/
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function hello(game_on, ...dummy) {
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for (let tmp2 = 0; tmp2 < dummy.length; ++tmp2) {
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let dd = dummy[tmp2];
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/* [inline] */
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/**
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* @param {number} game_on
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* @param {...string} dummy
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* @return {multi_return_int_int}
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*/
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function hello(game_on, ...dummy) {
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for (let _tmp2 = 0; _tmp2 < dummy.length; ++_tmp2) {
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let dd = dummy[_tmp2];
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/** @type {string} - l */
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const l = dd;
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}
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(function defer() {
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/** @type {string} - do */
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const do = "not";
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/** @type {string} - v_do */
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const v_do = "not";
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})();
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return [game_on + 2, 221];
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}
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}
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/* module exports */
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return {
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};
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})();
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@ -1,6 +1,7 @@
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const (
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i_am_a_const = 21214
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super = 'amazing keyword'
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)
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struct Companies {
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@ -10,17 +11,27 @@ struct Companies {
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}
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enum POSITION {
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GO_BACK
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DONT_GO_BACK
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go_back
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dont_go_back
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}
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fn class(extends string, instanceof int) {
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delete := instanceof
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}
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fn main() {
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v := "done"
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{
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_ := "block"
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}
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pos := POSITION.GO_BACK
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pos := POSITION.go_back
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debugger := 'JS keyword'
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// TODO: Implement interpolation
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await := super + debugger
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mut finally := 'implemented'
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dun := i_am_a_const * 20
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