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fmt: re-run on gen/fn.v

pull/5479/head^2
Alexander Medvednikov 2020-06-24 14:56:44 +02:00
parent e918f8faf2
commit 9d0cc7912a
2 changed files with 49 additions and 59 deletions
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7
vlib/v/checker/checker.v
View File

@ -2326,7 +2326,7 @@ fn (mut c Checker) match_exprs(mut node ast.MatchExpr, type_sym table.TypeSymbol
ast.EnumVal { key = expr.val }
else { key = expr.str() }
}
val := if key in branch_exprs { branch_exprs[key] } else { 0 }
val := if key in branch_exprs { branch_exprs[key] } /**/ else { 0 }
if val == 1 {
c.error('match case `$key` is handled more than once', branch.pos)
}
@ -2344,13 +2344,14 @@ fn (mut c Checker) match_exprs(mut node ast.MatchExpr, type_sym table.TypeSymbol
v_str := c.table.type_to_str(v)
if v_str !in branch_exprs {
is_exhaustive = false
unhandled << ' `$v_str`'
unhandled << '`$v_str`'
}
} }
//
table.Enum { for v in it.vals {
if v !in branch_exprs {
is_exhaustive = false
unhandled << ' `.$v`'
unhandled << '`.$v`'
}
} }
else { is_exhaustive = false }

101
vlib/v/gen/fn.v
View File

@ -12,9 +12,9 @@ fn (mut g Gen) gen_fn_decl(it ast.FnDecl) {
// || it.no_body {
return
}
//if g.fileis('vweb.v') {
//println('\ngen_fn_decl() $it.name $it.is_generic $g.cur_generic_type')
//}
// if g.fileis('vweb.v') {
// println('\ngen_fn_decl() $it.name $it.is_generic $g.cur_generic_type')
// }
former_cur_fn := g.cur_fn
g.cur_fn = &it
defer {
@ -46,7 +46,7 @@ fn (mut g Gen) gen_fn_decl(it ast.FnDecl) {
is_livemode := g.pref.is_livemain || g.pref.is_liveshared
is_live_wrap := is_livefn && is_livemode
if is_livefn && !is_livemode {
eprintln('INFO: compile with `v -live $g.pref.path `, if you want to use the [live] function ${it.name} .')
eprintln('INFO: compile with `v -live $g.pref.path `, if you want to use the [live] function $it.name .')
}
//
if is_main {
@ -97,12 +97,12 @@ fn (mut g Gen) gen_fn_decl(it ast.FnDecl) {
if is_livemain {
g.hotcode_fn_names << name
}
mut impl_fn_name := if is_live_wrap { 'impl_live_${name}' } else { name }
mut impl_fn_name := if is_live_wrap { 'impl_live_$name' } else { name }
g.last_fn_c_name = impl_fn_name
//
if is_live_wrap {
if is_livemain {
g.definitions.write('$type_name (* ${impl_fn_name})(')
g.definitions.write('$type_name (* $impl_fn_name)(')
g.write('$type_name no_impl_${name}(')
}
if is_liveshared {
@ -135,15 +135,16 @@ fn (mut g Gen) gen_fn_decl(it ast.FnDecl) {
// an early exit, which will leave the mutex locked.
mut fn_args_list := []string{}
for ia, fa in fargs {
fn_args_list << '${fargtypes[ia]} ${fa}'
fn_args_list << '${fargtypes[ia]} $fa'
}
mut live_fncall := '${impl_fn_name}(' + fargs.join(', ') + ');'
mut live_fnreturn := ''
if type_name != 'void' {
live_fncall = '${type_name} res = ${live_fncall}'
live_fncall = '$type_name res = $live_fncall'
live_fnreturn = 'return res;'
}
g.definitions.writeln('$type_name ${name}(' + fn_args_list.join(', ') + ');')
g.definitions.writeln('$type_name ${name}(' + fn_args_list.join(', ') +
');')
g.hotcode_definitions.writeln('$type_name ${name}(' + fn_args_list.join(', ') +
'){')
g.hotcode_definitions.writeln(' pthread_mutex_lock(&live_fn_mutex);')
@ -168,7 +169,9 @@ fn (mut g Gen) gen_fn_decl(it ast.FnDecl) {
}
if g.pref.os == .windows {
g.writeln('\t_const_os__args = os__init_os_args_wide(___argc, ___argv);')
} else {
}
//
else {
g.writeln('\t_const_os__args = os__init_os_args(___argc, (byteptr*)___argv);')
}
}
@ -330,7 +333,7 @@ fn (mut g Gen) call_expr(node ast.CallExpr) {
}
if gen_or {
g.or_block(tmp_opt, node.or_block, node.return_type)
g.write('\n\t${cur_line}${tmp_opt}')
g.write('\n\t$cur_line$tmp_opt')
}
}
@ -396,14 +399,8 @@ fn (mut g Gen) method_call(node ast.CallExpr) {
g.gen_str_for_type_with_styp(node.receiver_type, styp)
}
// TODO performance, detect `array` method differently
if left_sym.kind == .array && node.name in ['repeat', 'sort_with_compare', 'free', 'push_many',
'trim',
'first',
'last',
'clone',
'reverse',
'slice'
] {
if left_sym.kind == .array &&
node.name in ['repeat', 'sort_with_compare', 'free', 'push_many', 'trim', 'first', 'last', 'clone', 'reverse', 'slice'] {
// && rec_sym.name == 'array' {
// && rec_sym.name == 'array' && receiver_name.starts_with('array') {
// `array_byte_clone` => `array_clone`
@ -413,7 +410,6 @@ fn (mut g Gen) method_call(node ast.CallExpr) {
g.write('*($return_type_str*)')
}
}
mut name := '${receiver_type_name}_$node.name'.replace('.', '__')
// Check if expression is: arr[a..b].clone(), arr[a..].clone()
// if so, then instead of calling array_clone(&array_slice(...))
@ -583,7 +579,8 @@ fn (mut g Gen) fn_call(node ast.CallExpr) {
g.write('*')
}
g.expr(expr)
if !typ.has_flag(.variadic) && sym.kind == .struct_ && styp != 'ptr' && !sym.has_method('str') {
if !typ.has_flag(.variadic) && sym.kind == .struct_ &&
styp != 'ptr' && !sym.has_method('str') {
g.write(', 0') // trailing 0 is initial struct indent count
}
}
@ -621,8 +618,6 @@ fn (mut g Gen) call_args(args []ast.CallArg, expected_types []table.Type) {
if gen_vargs && i == expected_types.len - 1 {
break
}
// if arg.typ.name.starts_with('I') {
// }
mut is_interface := false
// some c fn definitions dont have args (cfns.v) or are not updated in checker
// when these are fixed we wont need this check
@ -717,75 +712,69 @@ fn (g &Gen) fileis(s string) bool {
return g.file.path.contains(s)
}
fn (mut g Gen) write_fn_attrs() string{
fn (mut g Gen) write_fn_attrs() string {
mut msvc_attrs := ''
for attr in g.attrs {
match attr {
'inline' {
g.write('inline ')
}
// since these are supported by GCC, clang and MSVC, we can consider them officially supported.
'no_inline' {
// since these are supported by GCC, clang and MSVC, we can consider them officially supported.
g.write('__NOINLINE ')
}
'irq_handler' {
g.write('__IRQHANDLER ')
}
// GCC/clang attributes
// prefixed by _ to indicate they're for advanced users only and not really supported by V.
// source for descriptions: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#Common-Function-Attributes
// The cold attribute on functions is used to inform the compiler that the function is unlikely
// to be executed. The function is optimized for size rather than speed and on many targets it
// is placed into a special subsection of the text section so all cold functions appear close
// together, improving code locality of non-cold parts of program.
'_cold' {
// GCC/clang attributes
// prefixed by _ to indicate they're for advanced users only and not really supported by V.
// source for descriptions: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#Common-Function-Attributes
// The cold attribute on functions is used to inform the compiler that the function is unlikely
// to be executed. The function is optimized for size rather than speed and on many targets it
// is placed into a special subsection of the text section so all cold functions appear close
// together, improving code locality of non-cold parts of program.
g.write('__attribute__((cold)) ')
}
// The constructor attribute causes the function to be called automatically before execution
// enters main ().
'_constructor' {
// The constructor attribute causes the function to be called automatically before execution
// enters main ().
g.write('__attribute__((constructor)) ')
}
// The destructor attribute causes the function to be called automatically after main ()
// completes or exit () is called.
'_destructor' {
// The destructor attribute causes the function to be called automatically after main ()
// completes or exit () is called.
g.write('__attribute__((destructor)) ')
}
// Generally, inlining into a function is limited. For a function marked with this attribute,
// every call inside this function is inlined, if possible.
'_flatten' {
// Generally, inlining into a function is limited. For a function marked with this attribute,
// every call inside this function is inlined, if possible.
g.write('__attribute__((flatten)) ')
}
// The hot attribute on a function is used to inform the compiler that the function is a hot
// spot of the compiled program.
'_hot' {
// The hot attribute on a function is used to inform the compiler that the function is a hot
// spot of the compiled program.
g.write('__attribute__((hot)) ')
}
// This tells the compiler that a function is malloc-like, i.e., that the pointer P returned by
// the function cannot alias any other pointer valid when the function returns, and moreover no
// pointers to valid objects occur in any storage addressed by P.
'_malloc' {
// This tells the compiler that a function is malloc-like, i.e., that the pointer P returned by
// the function cannot alias any other pointer valid when the function returns, and moreover no
// pointers to valid objects occur in any storage addressed by P.
g.write('__attribute__((malloc)) ')
}
// Calls to functions whose return value is not affected by changes to the observable state
// of the program and that have no observable effects on such state other than to return a
// value may lend themselves to optimizations such as common subexpression elimination.
// Declaring such functions with the const attribute allows GCC to avoid emitting some calls in
// repeated invocations of the function with the same argument values.
'_pure' {
// Calls to functions whose return value is not affected by changes to the observable state
// of the program and that have no observable effects on such state other than to return a
// value may lend themselves to optimizations such as common subexpression elimination.
// Declaring such functions with the const attribute allows GCC to avoid emitting some calls in
// repeated invocations of the function with the same argument values.
g.write('__attribute__((const)) ')
}
// windows attributes (msvc/mingw)
// prefixed by windows to indicate they're for advanced users only and not really supported by V.
'windows_stdcall' {
// windows attributes (msvc/mingw)
// prefixed by windows to indicate they're for advanced users only and not really supported by V.
msvc_attrs += '__stdcall '
}
else {
// nothing but keep V happy
}