mirror of
https://github.com/vlang/v.git
synced 2023-08-10 21:13:21 +03:00
make function arguments immutable by default
This commit is contained in:
Alexander Medvednikov
parent
06b8bd9382
commit
34e0b164eb
@ -1,6 +1,10 @@
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## V 0.1.18
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- Map initialization syntax: `m := { ‘foo’: ‘bar’, ‘baz’: ‘kek’ }`
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- `libcurl` dependency was removed from `http` module.
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- All function arguments are now immutable by default (previously they could be
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modifed inside the function).
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## V 0.1.17
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@ -512,8 +512,8 @@ fn (p mut Parser) async_fn_call(f Fn, method_ph int, receiver_var, receiver_type
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// Normal function => just its name, method => TYPE_FN.name
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mut fn_name := f.name
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if f.is_method {
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receiver_type = receiver_type.replace('*', '')
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fn_name = '${receiver_type}_${f.name}'
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fn_name = receiver_type.replace('*', '') + '_' + f.name
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//fn_name = '${receiver_type}_${f.name}'
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}
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// Generate tmp struct with args
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arg_struct_name := 'thread_arg_$fn_name'
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@ -115,8 +115,8 @@ fn is_js_prim(typ string) bool {
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typ == 'i8' || typ == 'i16' || typ == 'i32' || typ == 'i64'
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}
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fn (p mut Parser) decode_array(typ string) string {
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typ = typ.replace('array_', '')
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fn (p mut Parser) decode_array(array_type string) string {
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typ := array_type.replace('array_', '')
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t := p.table.find_type(typ)
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fn_name := js_dec_name(typ)
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// If we have `[]Profile`, have to register a Profile en(de)coder first
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@ -149,8 +149,8 @@ fn js_dec_name(typ string) string {
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return name
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}
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fn (p &Parser) encode_array(typ string) string {
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typ = typ.replace('array_', '')
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fn (p &Parser) encode_array(array_type string) string {
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typ := array_type.replace('array_', '')
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fn_name := js_enc_name(typ)
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return '
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o = cJSON_CreateArray();
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@ -669,7 +669,7 @@ fn (v V) run_compiled_executable_and_exit() {
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exit(0)
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}
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fn (c &V) cc_windows_cross() {
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fn (c mut V) cc_windows_cross() {
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if !c.out_name.ends_with('.exe') {
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c.out_name = c.out_name + '.exe'
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}
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@ -1192,7 +1192,8 @@ fn (p mut Parser) statement(add_semi bool) string {
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fn (p mut Parser) assign_statement(v Var, ph int, is_map bool) {
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p.log('assign_statement() name=$v.name tok=')
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tok := p.tok
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if !v.is_mut && !v.is_arg && !p.pref.translated && !v.is_global{
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//if !v.is_mut && !v.is_arg && !p.pref.translated && !v.is_global{
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if !v.is_mut && !p.pref.translated && !v.is_global{
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p.error('`$v.name` is immutable')
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}
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if !v.is_changed {
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@ -1799,7 +1800,8 @@ fn (p mut Parser) dot(str_typ string, method_ph int) string {
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return method.typ
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}
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fn (p mut Parser) index_expr(typ string, fn_ph int) string {
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fn (p mut Parser) index_expr(typ_ string, fn_ph int) string {
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mut typ := typ_
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// a[0]
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v := p.expr_var
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//if p.fileis('fn_test.v') {
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@ -2361,8 +2363,8 @@ fn (p mut Parser) char_expr() {
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}
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fn format_str(str string) string {
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str = str.replace('"', '\\"')
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fn format_str(_str string) string {
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mut str := _str.replace('"', '\\"')
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$if windows {
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str = str.replace('\r\n', '\\n')
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}
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@ -3298,9 +3300,11 @@ fn (p mut Parser) go_statement() {
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fn (p mut Parser) register_var(v Var) {
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if v.line_nr == 0 {
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v.line_nr = p.scanner.line_nr
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//v.line_nr = p.scanner.line_nr
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p.cur_fn.register_var({ v | line_nr: p.scanner.line_nr })
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} else {
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p.cur_fn.register_var(v)
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}
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p.cur_fn.register_var(v)
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}
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// user:=jsdecode(User, user_json_string)
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@ -550,7 +550,7 @@ fn (s mut Scanner) scan() ScanRes {
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fn (s &Scanner) error(msg string) {
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file := s.file_path.all_after('/')
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println('$file:${s.line_nr + 1} panic: $msg')
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println('$file:${s.line_nr + 1} $msg')
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exit(1)
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}
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@ -242,7 +242,8 @@ fn (t mut Table) register_fn(new_fn Fn) {
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t.fns[new_fn.name] = new_fn
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}
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fn (table &Table) known_type(typ string) bool {
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fn (table &Table) known_type(typ_ string) bool {
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mut typ := typ_
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// 'byte*' => look up 'byte', but don't mess up fns
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if typ.ends_with('*') && !typ.contains(' ') {
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typ = typ.left(typ.len - 1)
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@ -441,7 +442,8 @@ fn (p &Parser) find_type(name string) *Type {
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return typ
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}
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fn (t &Table) find_type(name string) *Type {
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fn (t &Table) find_type(name_ string) *Type {
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mut name := name_
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if name.ends_with('*') && !name.contains(' ') {
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name = name.left(name.len - 1)
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}
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@ -454,7 +456,9 @@ fn (t &Table) find_type(name string) *Type {
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return &Type{}
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}
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fn (p mut Parser) _check_types(got, expected string, throw bool) bool {
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fn (p mut Parser) _check_types(got_, expected_ string, throw bool) bool {
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mut got := got_
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mut expected := expected_
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p.log('check types got="$got" exp="$expected" ')
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if p.pref.translated {
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return true
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@ -582,8 +586,7 @@ fn (p mut Parser) satisfies_interface(interface_name, _typ string, throw bool) b
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fn type_default(typ string) string {
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if typ.starts_with('array_') {
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typ = typ.right(6)
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return 'new_array(0, 1, sizeof($typ))'
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return 'new_array(0, 1, sizeof( ${typ.right(6)} ))'
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}
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// Always set pointers to 0
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if typ.ends_with('*') {
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@ -776,8 +779,8 @@ fn (p mut Parser) typ_to_fmt(typ string, level int) string {
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return ''
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}
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fn is_compile_time_const(s string) bool {
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s = s.trim_space()
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fn is_compile_time_const(s_ string) bool {
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s := s_.trim_space()
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if s == '' {
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return false
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}
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@ -7,7 +7,8 @@ module main
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import strings
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// fmt helpers
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fn (scanner mut Scanner) fgen(s string) {
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fn (scanner mut Scanner) fgen(s_ string) {
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mut s := s_
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if scanner.fmt_line_empty {
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s = strings.repeat(`\t`, scanner.fmt_indent) + s
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}
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@ -15,7 +16,8 @@ fn (scanner mut Scanner) fgen(s string) {
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scanner.fmt_line_empty = false
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}
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fn (scanner mut Scanner) fgenln(s string) {
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fn (scanner mut Scanner) fgenln(s_ string) {
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mut s := s_
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if scanner.fmt_line_empty {
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s = strings.repeat(`\t`, scanner.fmt_indent) + s
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}
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@ -8,7 +8,7 @@ module cipher
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// xor_bytes xors the bytes in a and b. The destination should have enough
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// space, otherwise xor_bytes will panic. Returns the number of bytes xor'd.
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pub fn xor_bytes(dst, a, b []byte) int {
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pub fn xor_bytes(dst mut []byte, a, b []byte) int {
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mut n := a.len
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if b.len < n {
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n = b.len
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@ -17,13 +17,13 @@ pub fn xor_bytes(dst, a, b []byte) int {
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return 0
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}
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safe_xor_bytes(dst, a, b, n)
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safe_xor_bytes(mut dst, a, b, n)
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return n
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}
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// n needs to be smaller or equal than the length of a and b.
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pub fn safe_xor_bytes(dst, a, b []byte, n int) {
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pub fn safe_xor_bytes(dst mut []byte, a, b []byte, n int) {
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for i := 0; i < n; i++ {
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dst[i] = a[i] ^ b[i]
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}
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@ -32,5 +32,5 @@ pub fn safe_xor_bytes(dst, a, b []byte, n int) {
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// fast_xor_words XORs multiples of 4 or 8 bytes (depending on architecture.)
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// The slice arguments a and b are assumed to be of equal length.
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pub fn xor_words(dst, a, b []byte) {
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safe_xor_bytes(dst, a, b, b.len)
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safe_xor_bytes(mut dst, a, b, b.len)
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}
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@ -55,7 +55,7 @@ pub fn new() *Digest {
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return d
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}
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pub fn (d mut Digest) write(p []byte) ?int {
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pub fn (d mut Digest) write(p mut []byte) ?int {
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nn := p.len
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d.len += u64(nn)
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if d.nx > 0 {
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@ -106,8 +106,8 @@ pub fn (d mut Digest) checksum() []byte {
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mut tmp := [byte(0); 1 + 63 + 8]
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tmp[0] = 0x80
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pad := (55 - int(d.len)) % 64 // calculate number of padding bytes
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binary.little_endian_put_u64(tmp.right(1+pad), u64(d.len<<u64(3))) // append length in bits
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d.write(tmp.left(1+pad+8))
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binary.little_endian_put_u64(mut tmp.right(1+pad), u64(d.len<<u64(3))) // append length in bits
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d.write(mut tmp.left(1+pad+8))
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// The previous write ensures that a whole number of
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// blocks (i.e. a multiple of 64 bytes) have been hashed.
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@ -117,10 +117,10 @@ pub fn (d mut Digest) checksum() []byte {
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digest := [byte(0); Size]
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binary.little_endian_put_u32(digest, d.s[0])
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binary.little_endian_put_u32(digest.right(4), d.s[1])
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binary.little_endian_put_u32(digest.right(8), d.s[2])
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binary.little_endian_put_u32(digest.right(12), d.s[3])
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binary.little_endian_put_u32(mut digest, d.s[0])
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binary.little_endian_put_u32(mut digest.right(4), d.s[1])
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binary.little_endian_put_u32(mut digest.right(8), d.s[2])
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binary.little_endian_put_u32(mut digest.right(12), d.s[3])
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return digest
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}
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@ -13,7 +13,7 @@ import (
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encoding.binary
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)
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fn block_generic(dig &Digest, p []byte) {
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fn block_generic(dig mut Digest, p []byte) {
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// load state
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mut a := dig.s[0]
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mut b := dig.s[1]
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@ -58,7 +58,7 @@ pub fn new() &Digest {
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return d
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}
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pub fn (d mut Digest) write(p []byte) ?int {
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pub fn (d mut Digest) write(p mut []byte) ?int {
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nn := p.len
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d.len += u64(nn)
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@ -108,9 +108,9 @@ fn (d mut Digest) checksum() []byte {
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tmp[0] = 0x80
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if int(len)%64 < 56 {
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d.write(tmp.left(56-int(len)%64))
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d.write(mut tmp.left(56-int(len)%64))
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} else {
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d.write(tmp.left(64+56-int(len)%64))
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d.write(mut tmp.left(64+56-int(len)%64))
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}
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// Length in bits.
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@ -17,7 +17,7 @@ const (
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_K3 = 0xCA62C1D6
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)
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fn block_generic(dig &Digest, p []byte) {
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fn block_generic(dig mut Digest, p []byte) {
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mut w := [u32(0); 16]
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mut h0 := dig.h[0]
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mut h1 := dig.h[1]
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@ -51,7 +51,7 @@ mut:
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is224 bool // mark if this digest is SHA-224
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}
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fn (d &Digest) reset() {
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fn (d mut Digest) reset() {
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d.h = [u32(0); 8]
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d.x = [byte(0); Chunk]
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if !d.is224 {
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@ -92,7 +92,7 @@ pub fn new224() *Digest {
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return d
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}
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fn (d mut Digest) write(p []byte) ?int {
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fn (d mut Digest) write(p mut []byte) ?int {
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nn := p.len
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d.len += u64(nn)
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if d.nx > 0 {
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@ -145,14 +145,14 @@ fn (d mut Digest) checksum() []byte {
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mut tmp := [byte(0); 64]
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tmp[0] = 0x80
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if int(len)%64 < 56 {
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d.write(tmp.left(56-int(len)%64))
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d.write(mut tmp.left(56-int(len)%64))
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} else {
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d.write(tmp.left(64+56-int(len)%64))
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d.write(mut tmp.left(64+56-int(len)%64))
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}
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// Length in bits.
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len <<= u64(3)
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binary.big_endian_put_u64(tmp, len)
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binary.big_endian_put_u64(mut tmp, len)
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d.write(tmp.left(8))
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if d.nx != 0 {
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@ -161,13 +161,13 @@ fn (d mut Digest) checksum() []byte {
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digest := [byte(0); Size]
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binary.big_endian_put_u32(digest, d.h[0])
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binary.big_endian_put_u32(digest.right(4), d.h[1])
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binary.big_endian_put_u32(digest.right(8), d.h[2])
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binary.big_endian_put_u32(digest.right(12), d.h[3])
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binary.big_endian_put_u32(digest.right(16), d.h[4])
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binary.big_endian_put_u32(digest.right(20), d.h[5])
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binary.big_endian_put_u32(digest.right(24), d.h[6])
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binary.big_endian_put_u32(mut digest, d.h[0])
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binary.big_endian_put_u32(mut digest.right(4), d.h[1])
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binary.big_endian_put_u32(mut digest.right(8), d.h[2])
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binary.big_endian_put_u32(mut digest.right(12), d.h[3])
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binary.big_endian_put_u32(mut digest.right(16), d.h[4])
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binary.big_endian_put_u32(mut digest.right(20), d.h[5])
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binary.big_endian_put_u32(mut digest.right(24), d.h[6])
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if !d.is224 {
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binary.big_endian_put_u32(digest.right(28), d.h[7])
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}
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@ -80,7 +80,7 @@ const (
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]
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)
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fn block_generic(dig &Digest, p []byte) {
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fn block_generic(dig mut Digest, p []byte) {
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mut w := [u32(0); 64]
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mut h0 := dig.h[0]
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@ -146,14 +146,15 @@ fn new384() *Digest {
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return _new(crypto.Hash.SHA384)
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}
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fn (d mut Digest) write(p []byte) ?int {
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fn (d mut Digest) write(p_ []byte) ?int {
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mut p := p_
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nn := p.len
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d.len += u64(nn)
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if d.nx > 0 {
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n := copy(d.x.right(d.nx), p)
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d.nx += n
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if d.nx == Chunk {
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block(d, d.x)
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block(mut d, d.x)
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d.nx = 0
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}
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if n >= p.len {
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@ -164,7 +165,7 @@ fn (d mut Digest) write(p []byte) ?int {
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}
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if p.len >= Chunk {
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n := p.len &~ (Chunk - 1)
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block(d, p.left(n))
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block(mut d, p.left(n))
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if n >= p.len {
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p = []byte
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} else {
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@ -217,8 +218,8 @@ fn (d mut Digest) checksum() []byte {
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// Length in bits.
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len <<= u64(3)
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binary.big_endian_put_u64(tmp, u64(0)) // upper 64 bits are always zero, because len variable has type u64
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binary.big_endian_put_u64(tmp.right(8), len)
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binary.big_endian_put_u64(mut tmp, u64(0)) // upper 64 bits are always zero, because len variable has type u64
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binary.big_endian_put_u64(mut tmp.right(8), len)
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d.write(tmp.left(16))
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if d.nx != 0 {
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@ -227,15 +228,15 @@ fn (d mut Digest) checksum() []byte {
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mut digest := [byte(0); Size]
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binary.big_endian_put_u64(digest, d.h[0])
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binary.big_endian_put_u64(digest.right(8), d.h[1])
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binary.big_endian_put_u64(digest.right(16), d.h[2])
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binary.big_endian_put_u64(digest.right(24), d.h[3])
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binary.big_endian_put_u64(digest.right(32), d.h[4])
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binary.big_endian_put_u64(digest.right(40), d.h[5])
|
||||
binary.big_endian_put_u64(mut digest, d.h[0])
|
||||
binary.big_endian_put_u64(mut digest.right(8), d.h[1])
|
||||
binary.big_endian_put_u64(mut digest.right(16), d.h[2])
|
||||
binary.big_endian_put_u64(mut digest.right(24), d.h[3])
|
||||
binary.big_endian_put_u64(mut digest.right(32), d.h[4])
|
||||
binary.big_endian_put_u64(mut digest.right(40), d.h[5])
|
||||
if d.function != crypto.Hash.SHA384 {
|
||||
binary.big_endian_put_u64(digest.right(48), d.h[6])
|
||||
binary.big_endian_put_u64(digest.right(56), d.h[7])
|
||||
binary.big_endian_put_u64(mut digest.right(48), d.h[6])
|
||||
binary.big_endian_put_u64(mut digest.right(56), d.h[7])
|
||||
}
|
||||
|
||||
return digest
|
||||
@ -278,10 +279,10 @@ pub fn sum512_256(data []byte) []byte {
|
||||
return sum256
|
||||
}
|
||||
|
||||
fn block(dig &Digest, p []byte) {
|
||||
fn block(dig mut Digest, p []byte) {
|
||||
// For now just use block_generic until we have specific
|
||||
// architecture optimized versions
|
||||
block_generic(dig, p)
|
||||
block_generic(mut dig, p)
|
||||
}
|
||||
|
||||
pub fn (d &Digest) size() int {
|
||||
|
||||
@ -94,7 +94,7 @@ const(
|
||||
]
|
||||
)
|
||||
|
||||
fn block_generic(dig &Digest, p []byte) {
|
||||
fn block_generic(dig mut Digest, p []byte) {
|
||||
mut w := [u64(0); 80]
|
||||
|
||||
mut h0 := dig.h[0]
|
||||
|
||||
@ -12,7 +12,7 @@ pub fn little_endian_endian_u16(b []byte) u16 {
|
||||
}
|
||||
|
||||
|
||||
pub fn little_endian_put_u16(b []byte, v u16) {
|
||||
pub fn little_endian_put_u16(b mut []byte, v u16) {
|
||||
_ := b[1] // bounds check
|
||||
b[0] = byte(v)
|
||||
b[1] = byte(v >> u16(8))
|
||||
@ -23,7 +23,7 @@ pub fn little_endian_u32(b []byte) u32 {
|
||||
return u32(b[0]) | u32(u32(b[1])<<u32(8)) | u32(u32(b[2])<<u32(16)) | u32(u32(b[3])<<u32(24))
|
||||
}
|
||||
|
||||
pub fn little_endian_put_u32(b []byte, v u32) {
|
||||
pub fn little_endian_put_u32(b mut []byte, v u32) {
|
||||
_ := b[3] // bounds check
|
||||
b[0] = byte(v)
|
||||
b[1] = byte(v >> u32(8))
|
||||
@ -31,13 +31,13 @@ pub fn little_endian_put_u32(b []byte, v u32) {
|
||||
b[3] = byte(v >> u32(24))
|
||||
}
|
||||
|
||||
pub fn little_endian_u64(b []byte) u64 {
|
||||
pub fn little_endian_u64(b mut []byte) u64 {
|
||||
_ := b[7] // bounds check
|
||||
return u64(b[0]) | u64(u64(b[1])<<u64(8)) | u64(u64(b[2])<<u64(16)) | u64(u64(b[3])<<u64(24)) |
|
||||
u64(u64(b[4])<<u64(32)) | u64(u64(b[5])<<u64(40)) | u64(u64(b[6])<<u64(48)) | u64(u64(b[7])<<u64(56))
|
||||
}
|
||||
|
||||
pub fn little_endian_put_u64(b []byte, v u64) {
|
||||
pub fn little_endian_put_u64(b mut []byte, v u64) {
|
||||
_ := b[7] // bounds check
|
||||
b[0] = byte(v)
|
||||
b[1] = byte(v >> u64(8))
|
||||
@ -55,18 +55,18 @@ pub fn big_endian_u16(b []byte) u16 {
|
||||
return u16(b[1]) | u16(u16(b[0])<<u16(8))
|
||||
}
|
||||
|
||||
pub fn big_endian_put_u16(b []byte, v u16) {
|
||||
pub fn big_endian_put_u16(b mut []byte, v u16) {
|
||||
_ := b[1] // bounds check
|
||||
b[0] = byte(v >> u16(8))
|
||||
b[1] = byte(v)
|
||||
}
|
||||
|
||||
pub fn big_endian_u32(b []byte) u32 {
|
||||
pub fn big_endian_u32(b []byte) u32 {
|
||||
_ := b[3] // bounds check
|
||||
return u32(b[3]) | u32(u32(b[2])<<u32(8)) | u32(u32(b[1])<<u32(16)) | u32(u32(b[0])<<u32(24))
|
||||
}
|
||||
|
||||
pub fn big_endian_put_u32(b []byte, v u32) {
|
||||
pub fn big_endian_put_u32(b mut []byte, v u32) {
|
||||
_ := b[3] // bounds check
|
||||
b[0] = byte(v >> u32(24))
|
||||
b[1] = byte(v >> u32(16))
|
||||
@ -80,7 +80,7 @@ pub fn big_endian_u64(b []byte) u64 {
|
||||
u64(u64(b[3])<<u64(32)) | u64(u64(b[2])<<u64(40)) | u64(u64(b[1])<<u64(48)) | u64(u64(b[0])<<u64(56))
|
||||
}
|
||||
|
||||
pub fn big_endian_put_u64(b []byte, v u64) {
|
||||
pub fn big_endian_put_u64(b mut []byte, v u64) {
|
||||
_ := b[7] // bounds check
|
||||
b[0] = byte(v >> u64(56))
|
||||
b[1] = byte(v >> u64(48))
|
||||
|
||||
@ -179,7 +179,9 @@ pub fn gen_buffer() u32 {
|
||||
return vbo
|
||||
}
|
||||
|
||||
pub fn vertex_attrib_pointer(index, size int, typ int, normalized bool, stride int, ptr int) {
|
||||
pub fn vertex_attrib_pointer(index, size int, typ int, normalized bool, _stride int, _ptr int) {
|
||||
mut stride := _stride
|
||||
mut ptr := _ptr
|
||||
if typ == GL_FLOAT {
|
||||
stride *= sizeof(f32)
|
||||
ptr *= sizeof(f32)
|
||||
|
||||
@ -134,6 +134,7 @@ pub fn exp2(a f64) f64 {
|
||||
|
||||
// factorial calculates the factorial of the provided value.
|
||||
// TODO bring back once multiple value functions are implemented
|
||||
/*
|
||||
fn recursive_product( n int, current_number_ptr &int) int{
|
||||
mut m := n / 2
|
||||
if (m == 0){
|
||||
@ -174,6 +175,7 @@ pub fn factorial(n int) i64 {
|
||||
}
|
||||
return i64((r << shift))
|
||||
}
|
||||
*/
|
||||
|
||||
// floor returns the nearest integer lower or equal of the provided value.
|
||||
pub fn floor(a f64) f64 {
|
||||
@ -191,7 +193,9 @@ pub fn gamma(a f64) f64 {
|
||||
}
|
||||
|
||||
// gcd calculates greatest common (positive) divisor (or zero if a and b are both zero).
|
||||
pub fn gcd(a, b i64) i64 {
|
||||
pub fn gcd(a_, b_ i64) i64 {
|
||||
mut a := a_
|
||||
mut b := b_
|
||||
if a < 0 {
|
||||
a = -a
|
||||
}
|
||||
|
||||
@ -27,11 +27,13 @@ fn test_digits() {
|
||||
assert negative_digits[2] == -1
|
||||
}
|
||||
|
||||
/*
|
||||
fn test_factorial() {
|
||||
assert math.factorial(12) == 479001600
|
||||
assert math.factorial(5) == 120
|
||||
assert math.factorial(0) == 1
|
||||
}
|
||||
*/
|
||||
|
||||
fn test_erf() {
|
||||
assert math.erf(0) == 0
|
||||
|
||||
@ -142,7 +142,8 @@ pub fn path_unescape(s string) ?string {
|
||||
|
||||
// unescape unescapes a string; the mode specifies
|
||||
// which section of the URL string is being unescaped.
|
||||
fn unescape(s string, mode EncodingMode) ?string {
|
||||
fn unescape(s_ string, mode EncodingMode) ?string {
|
||||
mut s := s_
|
||||
// Count %, check that they're well-formed.
|
||||
mut n := 0
|
||||
mut has_plus := false
|
||||
@ -628,8 +629,9 @@ fn parse_host(host string) ?string {
|
||||
h := unescape(host, .encode_host) or {
|
||||
return err
|
||||
}
|
||||
host = h
|
||||
return host
|
||||
return h
|
||||
//host = h
|
||||
//return host
|
||||
}
|
||||
|
||||
// set_path sets the path and raw_path fields of the URL based on the provided
|
||||
@ -640,7 +642,7 @@ fn parse_host(host string) ?string {
|
||||
// - set_path('/foo%2fbar') will set path='/foo/bar' and raw_path='/foo%2fbar'
|
||||
// set_path will return an error only if the provided path contains an invalid
|
||||
// escaping.
|
||||
fn (u &URL) set_path(p string) ?bool {
|
||||
fn (u mut URL) set_path(p string) ?bool {
|
||||
path := unescape(p, .encode_path) or {
|
||||
return error(err)
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user