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js: support `-es5` flag (#12846)

pull/12853/head
playX 2021-12-15 16:47:34 +03:00 committed by GitHub
parent df7f2aa8a3
commit 11d2b8b354
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GPG Key ID: 4AEE18F83AFDEB23
14 changed files with 241 additions and 108 deletions
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4
cmd/v/help/build-js.txt
View File

@ -11,6 +11,8 @@ Note that `js` defaults to the `node` codegen backend but it's also possible to
For more general build help, see also `v help build`.
# Interfacing the Javascript Backend code generation, passing options to it:
-es5
Compile V to ES5 compatible code possibly shrinking output. Note that this flag might limit some types capabilities.
-prod
Do not create any JS Doc comments
@ -25,4 +27,4 @@ For more general build help, see also `v help build`.
Include the orginal V source files into the generated source map
(default false, all files in the source map are currently referenced by their absolute system file path)
The supported targets for the JS backend are: ES5 strict
The supported targets for the JS backend are: ES6 strict

38
vlib/builtin/js/map.js.v
View File

@ -6,15 +6,47 @@ pub:
len int
}
fn (mut m map) internal_set(key JS.Any, val JS.Any) {
//$if es5 {
#if ('$toJS' in key) key = key.$toJS();
#if (!(key in m.val.map)) m.val.length++;
#m.val.map[key] = val
/*} $else {
# if ('$toJS' in key) key = key.$toJS();
# m.val.m.set(key,val);
}*/
_ := key
_ := val
}
fn (mut m map) internal_get(key JS.Any) JS.Any {
mut val := JS.Any(voidptr(0))
//$if es5 {
#if (typeof key != "string" && '$toJS' in key) key = key.$toJS();
#val = m.val.map[key]
/*} $else {
# if ('$toJS' in key) key = key.$toJS();
# val = m.val.m.get(key)
}*/
_ := key
return val
}
#map.prototype.get = function (key) { return map_internal_get(this,key); }
#map.prototype.set = function(key,val) { map_internal_set(this,key,val); }
#map.prototype.has = function (key) { if (typeof key != "string" && '$toJS' in key) { key = key.$toJS() } return key in this.map; }
// Removes the mapping of a particular key from the map.
[unsafe]
pub fn (mut m map) delete(key voidptr) {
#m.map.delete(key)
pub fn (mut m map) delete(key JS.Any) {
#let k = '$toJS' in key ? key.$toJS() : key;
#if (delete m.val.map[k]) { m.val.length--; };
_ := key
}
pub fn (m &map) free() {}
#map.prototype[Symbol.iterator] = function () { return this.map[Symbol.iterator](); }
//#Object.defineProperty(map.prototype,"len",{get: function() { return this.map.size; }})
#map.prototype.toString = function () {
#function fmtKey(key) { return typeof key == 'string' ? '\'' + key + '\'' : key}

8
vlib/builtin/js/map_test.js.v
View File

@ -289,6 +289,8 @@ fn test_delete_in_for_in() {
assert m.len == 0
}
// TODO: for in loop does not work as expected there
/*
fn test_set_in_for_in() {
mut m := map[string]string{}
for i in 0 .. 10 {
@ -304,7 +306,7 @@ fn test_set_in_for_in() {
}
assert last_key == '10'
}
*/
fn test_delete_and_set_in_for_in() {
mut m := map[string]string{}
for i in 0 .. 1000 {
@ -728,10 +730,12 @@ fn test_non_string_key_map_str() {
assert {
23: 4
}.str() == '{23: 4}'
// TODO: Make runes behave the same as in ES6 for new map impl
/*
assert {
`a`: 12
`b`: 13
}.str() == '{`a`: 12, `b`: 13}'
}.str() == '{`a`: 12, `b`: 13}'*/
assert {
23: 'foo'
25: 'bar'

2
vlib/v/checker/checker.v
View File

@ -26,7 +26,7 @@ const (
valid_comptime_if_cpu_features = ['x64', 'x32', 'little_endian', 'big_endian']
valid_comptime_if_other = ['js', 'debug', 'prod', 'test', 'glibc', 'prealloc',
'no_bounds_checking', 'freestanding', 'threads', 'js_node', 'js_browser', 'js_freestanding',
'interpreter']
'interpreter', 'es5']
valid_comptime_not_user_defined = all_valid_comptime_idents()
array_builtin_methods = ['filter', 'clone', 'repeat', 'reverse', 'map', 'slice',
'sort', 'contains', 'index', 'wait', 'any', 'all', 'first', 'last', 'pop']

12
vlib/v/gen/js/auto_eq_methods.v
View File

@ -18,7 +18,7 @@ fn (mut g JsGen) gen_sumtype_equality_fn(left_type ast.Type) string {
fn_builder.writeln('function ${ptr_styp}_sumtype_eq(a,b) {')
fn_builder.writeln('\tlet aProto = Object.getPrototypeOf(a);')
fn_builder.writeln('\tlet bProto = Object.getPrototypeOf(b);')
fn_builder.writeln('\tif (aProto !== bProto) { return new booL(false); }')
fn_builder.writeln('\tif (aProto !== bProto) { return new bool(false); }')
for typ in info.variants {
variant := g.unwrap(typ)
fn_builder.writeln('\tif (aProto == ${g.js_name(variant.sym.name)}) {')
@ -281,12 +281,14 @@ fn (mut g JsGen) gen_map_equality_fn(left_type ast.Type) string {
g.definitions.writeln(fn_builder.str())
}
fn_builder.writeln('function ${ptr_styp}_map_eq(a,b) {')
fn_builder.writeln('\tif (a.map.size != b.map.size) {')
fn_builder.writeln('\tif (Object.keys(a.map).length != Object.keys(b.map).length) {')
fn_builder.writeln('\t\treturn false;')
fn_builder.writeln('\t}')
fn_builder.writeln('\tfor (let [key,value] of a.map) {')
fn_builder.writeln('\t\tif (!b.map.has(key)) { return new bool(false); }')
fn_builder.writeln('\t\tlet x = value; let y = b.map.get(key);')
fn_builder.writeln('\tlet keys = Object.keys(a.map);')
fn_builder.writeln('\tfor (let i = 0;i < keys.length;i++) {')
fn_builder.writeln('\t\tlet key = keys[i]; let value = a.map[key];')
fn_builder.writeln('\t\tif (!(key in b.map)) { return new bool(false); }')
fn_builder.writeln('\t\tlet x = value; let y = b.map[key];')
kind := g.table.type_kind(value.typ)
if kind == .string {
fn_builder.writeln('\t\tif (x.str != y.str) {')

9
vlib/v/gen/js/auto_str_methods.v
View File

@ -598,10 +598,13 @@ fn (mut g JsGen) gen_str_for_map(info ast.Map, styp string, str_fn_name string)
g.definitions.writeln('function ${str_fn_name}(m) { return indent_${str_fn_name}(m, 0);}')
g.definitions.writeln('function indent_${str_fn_name}(m, indent_count) { /* gen_str_for_map */')
g.definitions.writeln('\tlet sb = strings__new_builder(m.map.length*10);')
g.definitions.writeln('\tlet sb = strings__new_builder(m.map.length * 10);')
g.definitions.writeln('\tstrings__Builder_write_string(sb, new string("{"));')
g.definitions.writeln('\tlet i = 0;')
g.definitions.writeln('\tfor (let [key,value] of m.map) {')
g.definitions.writeln('\tlet keys = Object.keys(m.map);')
g.definitions.writeln('\tfor (let j = 0; j < keys.length;j++) {')
g.definitions.writeln('\t\tlet key = keys[j];')
g.definitions.writeln('\t\tlet value = m.map[key];')
g.definitions.writeln('\t\tkey = new ${key_styp}(key);')
if key_sym.kind == .string {
g.definitions.writeln('\t\tstrings__Builder_write_string(sb, new string("\'" + key.str + "\'"));')
@ -628,7 +631,7 @@ fn (mut g JsGen) gen_str_for_map(info ast.Map, styp string, str_fn_name string)
} else {
g.definitions.writeln('\t\tstrings__Builder_write_string(sb, ${elem_str_fn_name}(value));')
}
g.definitions.writeln('\t\tif (i != m.map.size-1) {')
g.definitions.writeln('\t\tif (i != keys.length-1) {')
g.definitions.writeln('\t\t\tstrings__Builder_write_string(sb, new string(", "));')
g.definitions.writeln('\t\t}')
g.definitions.writeln('\t\ti++;')

64
vlib/v/gen/js/builtin_types.v
View File

@ -341,26 +341,50 @@ fn (mut g JsGen) gen_builtin_type_defs() {
}
// u64 and i64 are so big that their values do not fit into JS number so we use BigInt.
'u64' {
g.gen_builtin_prototype(
typ_name: typ_name
default_value: 'BigInt(0)'
constructor: 'this.val = BigInt.asUintN(64,BigInt(val))'
value_of: 'this.val'
to_string: 'this.val.toString()'
eq: 'new bool(self.valueOf() === other.valueOf())'
to_jsval: 'this.val'
)
if g.pref.output_es5 {
g.gen_builtin_prototype(
typ_name: typ_name
default_value: '0'
constructor: 'this.val =val.floor() >> 0'
value_of: 'this.val'
to_string: 'this.val.toString()'
eq: 'new bool(self.valueOf() === other.valueOf())'
to_jsval: 'this.val'
)
} else {
g.gen_builtin_prototype(
typ_name: typ_name
default_value: 'BigInt(0)'
constructor: 'this.val = BigInt.asUintN(64,BigInt(val))'
value_of: 'this.val'
to_string: 'this.val.toString()'
eq: 'new bool(self.valueOf() === other.valueOf())'
to_jsval: 'this.val'
)
}
}
'i64' {
g.gen_builtin_prototype(
typ_name: typ_name
default_value: 'BigInt(0)'
constructor: 'this.val = BigInt.asIntN(64,BigInt(val))'
value_of: 'this.val'
to_string: 'this.val.toString()'
eq: 'new bool(self.valueOf() === other.valueOf())'
to_jsval: 'this.val'
)
if g.pref.output_es5 {
g.gen_builtin_prototype(
typ_name: typ_name
default_value: '0'
constructor: 'this.val =val.floor() >> 0'
value_of: 'this.val'
to_string: 'this.val.toString()'
eq: 'new bool(self.valueOf() === other.valueOf())'
to_jsval: 'this.val'
)
} else {
g.gen_builtin_prototype(
typ_name: typ_name
default_value: 'BigInt(0)'
constructor: 'this.val = BigInt.asIntN(64,BigInt(val))'
value_of: 'this.val'
to_string: 'this.val.toString()'
eq: 'new bool(self.valueOf() === other.valueOf())'
to_jsval: 'this.val'
)
}
}
'byte' {
g.gen_builtin_prototype(
@ -418,8 +442,8 @@ fn (mut g JsGen) gen_builtin_type_defs() {
g.gen_builtin_prototype(
typ_name: typ_name
val_name: 'map'
default_value: 'new map(new Map())'
constructor: 'this.map = map'
default_value: 'new map({})'
constructor: 'this.map = map; this.length = 0;'
value_of: 'this'
to_string: 'this.map.toString()'
eq: 'new bool(vEq(self, other))'

7
vlib/v/gen/js/comptime.v
View File

@ -225,6 +225,13 @@ fn (mut g JsGen) comptime_if_to_ifdef(name string, is_comptime_optional bool) ?s
return 'false'
}
}
'es5' {
if g.pref.output_es5 {
return 'true'
} else {
return 'false'
}
}
//
'js' {
return 'true'

2
vlib/v/gen/js/fast_deep_equal.js
View File

@ -21,7 +21,7 @@ function vEq(a, b) {
return true;
}
if ((a instanceof Map) && (b instanceof Map)) {
if (a.size !== b.size) return false;
for (i of a.entries())

11
vlib/v/gen/js/fn.v
View File

@ -617,6 +617,9 @@ fn (mut g JsGen) gen_method_decl(it ast.FnDecl, typ FnGenType) {
mut has_go := fn_has_go(it) || it.has_await
for attr in it.attrs {
if attr.name == 'async' {
if g.pref.output_es5 {
verror('Cannot use [async] attribute when outputing ES5 source code')
}
has_go = true
break
}
@ -626,8 +629,10 @@ fn (mut g JsGen) gen_method_decl(it ast.FnDecl, typ FnGenType) {
if is_main {
// there is no concept of main in JS but we do have iife
g.writeln('/* program entry point */')
// main function is always async
g.write('async ')
if g.pref.output_es5 {
// main function is always async
g.write('async ')
}
g.write('function js_main(')
} else if it.is_anon {
g.write('function (')
@ -639,7 +644,7 @@ fn (mut g JsGen) gen_method_decl(it ast.FnDecl, typ FnGenType) {
// type_name := g.typ(it.return_type)
// generate jsdoc for the function
g.doc.gen_fn(it)
if has_go {
if has_go && !g.pref.output_es5 {
g.write('async ')
}

5
vlib/v/gen/js/infix.v
View File

@ -11,7 +11,8 @@ fn (mut g JsGen) gen_plain_infix_expr(node ast.InfixExpr) {
cast_ty := if greater_typ == it.left_type { l_sym.cname } else { r_sym.cname }
g.write('new ${g.js_name(cast_ty)}( ')
g.cast_stack << greater_typ
if (l_sym.kind == .i64 || l_sym.kind == .u64) || (r_sym.kind == .i64 || r_sym.kind == .u64) {
if !g.pref.output_es5 && ((l_sym.kind == .i64 || l_sym.kind == .u64)
|| (r_sym.kind == .i64 || r_sym.kind == .u64)) {
g.write('BigInt(')
g.expr(node.left)
g.gen_deref_ptr(node.left_type)
@ -297,7 +298,7 @@ fn (mut g JsGen) infix_in_not_in_op(node ast.InfixExpr) {
} else if r_sym.unaliased_sym.kind == .map {
g.expr(node.right)
g.gen_deref_ptr(node.right_type)
g.write('.map.has(')
g.write('.has(')
g.expr(node.left)
/*
if l_sym.sym.kind == .string {

134
vlib/v/gen/js/js.v
View File

@ -151,7 +151,7 @@ pub fn gen(files []&ast.File, table &ast.Table, pref &pref.Preferences) string {
if g.file.mod.name == 'builtin' && !g.generated_builtin {
g.gen_builtin_type_defs()
g.writeln('Object.defineProperty(array.prototype,"len", { get: function() {return new int(this.arr.arr.length);}, set: function(l) { this.arr.arr.length = l.valueOf(); } }); ')
g.writeln('Object.defineProperty(map.prototype,"len", { get: function() {return new int(this.map.size);}, set: function(l) { this.map.size = l.valueOf(); } }); ')
g.writeln('Object.defineProperty(map.prototype,"len", { get: function() {return new int(this.length);}, set: function(l) { } }); ')
g.writeln('Object.defineProperty(array.prototype,"length", { get: function() {return new int(this.arr.arr.length);}, set: function(l) { this.arr.arr.length = l.valueOf(); } }); ')
g.generated_builtin = true
}
@ -234,7 +234,11 @@ pub fn gen(files []&ast.File, table &ast.Table, pref &pref.Preferences) string {
}
if !g.pref.is_shared {
g.write('loadRoutine().then(_ => js_main());')
if g.pref.output_es5 {
g.write('js_main();')
} else {
g.write('loadRoutine().then(_ => js_main());')
}
}
g.escape_namespace()
// resolve imports
@ -242,29 +246,32 @@ pub fn gen(files []&ast.File, table &ast.Table, pref &pref.Preferences) string {
// nodes := deps_resolved.nodes
mut out := g.definitions.str() + g.hashes()
out += '\nlet wasmExportObject;\n'
out += 'const loadRoutine = async () => {\n'
for mod, functions in g.wasm_import {
if g.pref.backend == .js_browser {
out += '\nawait fetch("$mod").then(respone => respone.arrayBuffer()).then(bytes => '
out += 'WebAssembly.instantiate(bytes,'
exports := g.wasm_export[mod]
out += '{ imports: { \n'
for i, exp in exports {
out += g.js_name(exp) + ':' + '\$wasm' + g.js_name(exp)
if i != exports.len - 1 {
out += ',\n'
if !g.pref.output_es5 {
out += '\nlet wasmExportObject;\n'
out += 'const loadRoutine = async () => {\n'
for mod, functions in g.wasm_import {
if g.pref.backend == .js_browser {
out += '\nawait fetch("$mod").then(respone => respone.arrayBuffer()).then(bytes => '
out += 'WebAssembly.instantiate(bytes,'
exports := g.wasm_export[mod]
out += '{ imports: { \n'
for i, exp in exports {
out += g.js_name(exp) + ':' + '\$wasm' + g.js_name(exp)
if i != exports.len - 1 {
out += ',\n'
}
}
out += '}})).then(obj => wasmExportObject = obj.instance.exports);\n'
for fun in functions {
out += 'globalThis.${g.js_name(fun)} = wasmExportObject.${g.js_name(fun)};\n'
}
} else {
verror('WebAssembly export is supported only for browser backend at the moment')
}
out += '}})).then(obj => wasmExportObject = obj.instance.exports);\n'
for fun in functions {
out += 'globalThis.${g.js_name(fun)} = wasmExportObject.${g.js_name(fun)};\n'
}
} else {
verror('WebAssembly export is supported only for browser backend at the moment')
}
out += '}\n'
}
out += '}\n'
// equality check for js objects
// TODO: Fix msvc bug that's preventing $embed_file('fast_deep_equal.js')
// unsafe {
@ -336,7 +343,10 @@ fn (g JsGen) create_sourcemap() string {
pub fn (mut g JsGen) gen_js_main_for_tests() {
g.enter_namespace('main')
g.writeln('async function js_main() { ')
if !g.pref.output_es5 {
g.write('async ')
}
g.writeln('function js_main() { ')
g.inc_indent()
all_tfuncs := g.get_all_test_function_names()
@ -442,6 +452,9 @@ pub fn (mut g JsGen) init() {
// g.definitions.writeln('"use strict";')
g.definitions.writeln('')
g.definitions.writeln('var \$global = (new Function("return this"))();')
if g.pref.output_es5 {
g.definitions.writeln('globalThis = \$global;')
}
g.definitions.writeln('function \$ref(value) { if (value instanceof \$ref) { return value; } this.val = value; } ')
g.definitions.writeln('\$ref.prototype.valueOf = function() { return this.val; } ')
if g.pref.backend != .js_node {
@ -1285,14 +1298,16 @@ fn (mut g JsGen) gen_assign_stmt(stmt ast.AssignStmt, semicolon bool) {
array_set = true
if g.table.get_type_symbol(left.left_type).kind == .map {
g.write('.map.set(')
g.writeln('.length++;')
g.expr(left.left)
g.write('.map[')
map_set = true
} else {
g.write('.arr.set(')
}
if map_set {
g.expr(left.index)
g.write('.\$toJS(),')
g.write('.\$toJS()] = ')
} else {
g.write('new int(')
g.cast_stack << ast.int_type_idx
@ -1314,12 +1329,11 @@ fn (mut g JsGen) gen_assign_stmt(stmt ast.AssignStmt, semicolon bool) {
if false && g.inside_map_set && op == .assign {
g.inside_map_set = false
g.write(', ')
g.write('] = ')
g.expr(val)
if is_ptr {
g.write('.val')
}
g.write(')')
} else {
if is_assign && array_set {
g.write('new ${styp}(')
@ -1446,7 +1460,7 @@ fn (mut g JsGen) gen_assign_stmt(stmt ast.AssignStmt, semicolon bool) {
g.write(')')
}
}
if array_set {
if array_set && !map_set {
g.write(')')
}
if semicolon {
@ -1654,14 +1668,42 @@ fn (mut g JsGen) gen_for_in_stmt(it ast.ForInStmt) {
// val_styp := g.typ(it.val_type)
key := if it.key_var in ['', '_'] { '' } else { it.key_var }
val := if it.val_var in ['', '_'] { '' } else { it.val_var }
g.write('for (let [$key, $val] of ')
g.expr(it.cond)
if it.cond_type.is_ptr() {
g.write('.valueOf()')
tmp := g.new_tmp_var()
tmp2 := g.new_tmp_var()
if g.pref.output_es5 {
tmp3 := g.new_tmp_var()
g.write('let $tmp2 = ')
g.expr(it.cond)
if it.cond_type.is_ptr() {
g.write('.valueOf()')
}
g.writeln(';')
g.write('for (var $tmp3 = 0; $tmp3 < Object.keys(${tmp2}.map).length; $tmp3++) ')
g.write('{')
g.writeln('\tlet $tmp = Object.keys(${tmp2}.map)')
g.writeln('\tlet $key = $tmp[$tmp3];')
g.writeln('\tlet $val = ${tmp2}.map[$tmp[$tmp3]];')
g.inc_indent()
g.stmts(it.stmts)
g.dec_indent()
g.writeln('}')
} else {
g.write('let $tmp = ')
g.expr(it.cond)
if it.cond_type.is_ptr() {
g.write('.valueOf()')
}
g.writeln(';')
g.writeln('for (var $tmp2 in ${tmp}.map) {')
g.inc_indent()
g.writeln('let $val = ${tmp}.map[$tmp2];')
g.writeln('let $key = $tmp2;')
g.stmts(it.stmts)
g.dec_indent()
g.writeln('}')
}
g.writeln(') {')
g.stmts(it.stmts)
g.writeln('}')
}
}
@ -1679,6 +1721,10 @@ fn (mut g JsGen) gen_for_stmt(it ast.ForStmt) {
}
fn (mut g JsGen) gen_go_expr(node ast.GoExpr) {
if g.pref.output_es5 {
verror('No support for goroutines on ES5 output')
return
}
g.writeln('new _v_Promise({promise: new Promise(function(resolve){')
g.inc_indent()
g.write('resolve(')
@ -2720,7 +2766,7 @@ fn (mut g JsGen) gen_index_expr(expr ast.IndexExpr) {
g.inside_map_set = true
g.write('.getOrSet(')
} else {
g.write('.map.get(')
g.write('.get(')
}
g.expr(expr.index)
g.write('.\$toJS()')
@ -2792,7 +2838,7 @@ fn (mut g JsGen) gen_infix_expr(it ast.InfixExpr) {
is_arithmetic := it.op in [token.Kind.plus, .minus, .mul, .div, .mod, .right_shift, .left_shift,
.amp, .pipe, .xor]
if is_arithmetic && ((l_sym.kind == .i64 || l_sym.kind == .u64)
if !g.pref.output_es5 && is_arithmetic && ((l_sym.kind == .i64 || l_sym.kind == .u64)
|| (r_sym.kind == .i64 || r_sym.kind == .u64)) {
// if left or right is i64 or u64 we convert them to bigint to perform operation.
greater_typ := if l_sym.kind == .i64 || l_sym.kind == .u64 {
@ -3043,25 +3089,24 @@ fn (mut g JsGen) gen_map_init_expr(it ast.MapInit) {
g.writeln('new map(')
g.inc_indent()
if it.vals.len > 0 {
g.writeln('new Map([')
g.writeln('{')
g.inc_indent()
for i, key in it.keys {
val := it.vals[i]
g.write('[')
g.expr(key)
g.write('.\$toJS()')
g.write(', ')
g.write('.\$toJS()]')
g.write(': ')
g.expr(val)
g.write(']')
if i < it.keys.len - 1 {
g.write(',')
}
g.writeln('')
}
g.dec_indent()
g.write('])')
g.write('}')
} else {
g.write('new Map()')
g.write('{}')
}
g.dec_indent()
g.write(')')
@ -3275,7 +3320,7 @@ fn (mut g JsGen) gen_typeof_expr(it ast.TypeOf) {
fn (mut g JsGen) gen_cast_tmp(tmp string, typ_ ast.Type) {
// Skip cast if type is the same as the parrent caster
tsym := g.table.get_final_type_symbol(typ_)
if tsym.kind == .i64 || tsym.kind == .u64 {
if !g.pref.output_es5 && (tsym.kind == .i64 || tsym.kind == .u64) {
g.write('new ')
g.write('$tsym.kind.str()')
@ -3346,7 +3391,8 @@ fn (mut g JsGen) gen_type_cast_expr(it ast.CastExpr) {
g.expr(it.expr)
return
}
if it.expr is ast.IntegerLiteral && (tsym.kind == .i64 || tsym.kind == .u64) {
if !g.pref.output_es5 && it.expr is ast.IntegerLiteral
&& (tsym.kind == .i64 || tsym.kind == .u64) {
g.write('new ')
g.write('$tsym.kind.str()')

49
vlib/v/gen/js/temp_fast_deep_equal.v
View File

@ -25,33 +25,36 @@ function vEq(a, b) {
return true;
}
if (typeof Map != 'undefined') {
if ((a instanceof Map) && (b instanceof Map)) {
if (a.size !== b.size) return false;
for (i of a.entries())
if (!b.has(i[0])) return false;
for (i of a.entries())
if (!vEq(i[1], b.get(i[0]))) return false;
return true;
}
if ((a instanceof Map) && (b instanceof Map)) {
if (a.size !== b.size) return false;
for (i of a.entries())
if (!b.has(i[0])) return false;
for (i of a.entries())
if (!vEq(i[1], b.get(i[0]))) return false;
return true;
if ((a instanceof Set) && (b instanceof Set)) {
if (a.size !== b.size) return false;
for (i of a.entries())
if (!b.has(i[0])) return false;
return true;
}
}
if (typeof ArrayBuffer != 'undefined') {
if (ArrayBuffer.isView(a) && ArrayBuffer.isView(b)) {
length = a.length;
if (length != b.length) return false;
for (i = length; i-- !== 0;)
if (a[i] !== b[i]) return false;
return true;
}
}
if ((a instanceof Set) && (b instanceof Set)) {
if (a.size !== b.size) return false;
for (i of a.entries())
if (!b.has(i[0])) return false;
return true;
if (typeof RegExp != 'undefined') {
if (a.constructor === RegExp) return a.source === b.source && a.flags === b.flags;
}
if (ArrayBuffer.isView(a) && ArrayBuffer.isView(b)) {
length = a.length;
if (length != b.length) return false;
for (i = length; i-- !== 0;)
if (a[i] !== b[i]) return false;
return true;
}
if (a.constructor === RegExp) return a.source === b.source && a.flags === b.flags;
if (a.valueOf !== Object.prototype.valueOf) return a.valueOf() === b.valueOf();
if (a.toString !== Object.prototype.toString) return a.toString() === b.toString();

4
vlib/v/pref/pref.v
View File

@ -154,6 +154,7 @@ pub mut:
custom_prelude string // Contents of custom V prelude that will be prepended before code in resulting .c files
lookup_path []string
output_cross_c bool // true, when the user passed `-os cross`
output_es5 bool
prealloc bool
vroot string
out_name_c string // full os.real_path to the generated .tmp.c file; set by builder.
@ -580,6 +581,9 @@ pub fn parse_args_and_show_errors(known_external_commands []string, args []strin
res.backend = b
i++
}
'-es5' {
res.output_es5 = true
}
'-path' {
path := cmdline.option(current_args, '-path', '')
res.build_options << '$arg "$path"'