298 lines
6.2 KiB
V
298 lines
6.2 KiB
V
// Copyright (c) 2019-2020 Alexander Medvednikov. All rights reserved.
|
|
// Use of this source code is governed by an MIT license
|
|
// that can be found in the LICENSE file.
|
|
module builtin
|
|
|
|
__global (
|
|
g_m2_buf byteptr
|
|
g_m2_ptr byteptr
|
|
)
|
|
|
|
type FnExitCb = fn()
|
|
fn C.atexit(f FnExitCb) int
|
|
|
|
pub fn exit(code int) {
|
|
C.exit(code)
|
|
}
|
|
|
|
// isnil returns true if an object is nil (only for C objects).
|
|
pub fn isnil(v voidptr) bool {
|
|
return v == 0
|
|
}
|
|
|
|
/*
|
|
fn on_panic(f fn(int)int) {
|
|
// TODO
|
|
}
|
|
*/
|
|
|
|
pub fn print_backtrace() {
|
|
// at the time of backtrace_symbols_fd call, the C stack would look something like this:
|
|
// 1 frame for print_backtrace_skipping_top_frames
|
|
// 1 frame for print_backtrace itself
|
|
// ... print the rest of the backtrace frames ...
|
|
// => top 2 frames should be skipped, since they will not be informative to the developer
|
|
print_backtrace_skipping_top_frames(2)
|
|
}
|
|
|
|
// replaces panic when -debug arg is passed
|
|
fn panic_debug(line_no int, file, mod, fn_name, s string) {
|
|
// NB: the order here is important for a stabler test output
|
|
// module is less likely to change than function, etc...
|
|
// During edits, the line number will change most frequently,
|
|
// so it is last
|
|
eprintln('================ V panic ================')
|
|
eprintln(' module: $mod')
|
|
eprintln(' function: ${fn_name}()')
|
|
eprintln(' message: $s')
|
|
eprintln(' file: $file')
|
|
eprintln(' line: ' + line_no.str())
|
|
eprintln('=========================================')
|
|
// recent versions of tcc print better backtraces automatically
|
|
$if !tinyc {
|
|
print_backtrace_skipping_top_frames(1)
|
|
}
|
|
break_if_debugger_attached()
|
|
C.exit(1)
|
|
}
|
|
|
|
pub fn panic(s string) {
|
|
eprintln('V panic: $s')
|
|
// recent versions of tcc print better backtraces automatically
|
|
$if !tinyc {
|
|
print_backtrace()
|
|
}
|
|
break_if_debugger_attached()
|
|
C.exit(1)
|
|
}
|
|
|
|
pub fn eprintln(s string) {
|
|
// eprintln is used in panics, so it should not fail at all
|
|
if s.str == 0 {
|
|
eprintln('eprintln(NIL)')
|
|
}
|
|
C.fflush(C.stdout)
|
|
C.fflush(C.stderr)
|
|
C.write(2, s.str, s.len)
|
|
C.write(2, c'\n', 1)
|
|
C.fflush(C.stderr)
|
|
}
|
|
|
|
pub fn eprint(s string) {
|
|
if s.str == 0 {
|
|
eprintln('eprint(NIL)')
|
|
}
|
|
C.fflush(C.stdout)
|
|
C.fflush(C.stderr)
|
|
C.write(2, s.str, s.len)
|
|
C.fflush(C.stderr)
|
|
}
|
|
|
|
pub fn print(s string) {
|
|
C.write(1, s.str, s.len)
|
|
}
|
|
|
|
const (
|
|
new_line_character = '\n'
|
|
)
|
|
|
|
//#include "@VROOT/vlib/darwin/darwin.m"
|
|
//fn C.nsstring2(s string) voidptr
|
|
//fn C.NSLog(x voidptr)
|
|
//#include <asl.h>
|
|
|
|
fn C.asl_log(voidptr, voidptr, int, charptr)
|
|
|
|
pub fn println(s string) {
|
|
$if windows {
|
|
print(s)
|
|
print(new_line_character)
|
|
} $else {
|
|
// For debugging .app applications (no way to read stdout) so that it's printed to macOS Console
|
|
/*
|
|
$if macos {
|
|
C.asl_log(0, 0, C.ASL_LEVEL_ERR, s.str)
|
|
}
|
|
*/
|
|
// TODO: a syscall sys_write on linux works, except for the v repl.
|
|
// Probably it is a stdio buffering issue. Needs more testing...
|
|
// $if linux {
|
|
// $if !android {
|
|
// snl := s + '\n'
|
|
// C.syscall(/* sys_write */ 1, /* stdout_value */ 1, snl.str, s.len+1)
|
|
// return
|
|
// }
|
|
// }
|
|
C.printf('%.*s\n', s.len, s.str)
|
|
}
|
|
}
|
|
|
|
__global (
|
|
total_m = i64(0)
|
|
nr_mallocs = int(0)
|
|
)
|
|
|
|
[unsafe]
|
|
pub fn malloc(n int) byteptr {
|
|
if n <= 0 {
|
|
panic('malloc(<=0)')
|
|
}
|
|
$if prealloc {
|
|
//println('p')
|
|
res := g_m2_ptr
|
|
unsafe {
|
|
g_m2_ptr += n
|
|
}
|
|
nr_mallocs++
|
|
return res
|
|
} $else {
|
|
ptr := unsafe {C.malloc(n)}
|
|
if ptr == 0 {
|
|
panic('malloc($n) failed')
|
|
}
|
|
return ptr
|
|
}
|
|
/*
|
|
TODO
|
|
#ifdef VPLAY
|
|
if n > 10000 {
|
|
panic('allocating more than 10 KB is not allowed in the playground')
|
|
}
|
|
#endif
|
|
#ifdef DEBUG_ALLOC
|
|
total_m += n
|
|
println('\n\n\nmalloc($n) total=$total_m')
|
|
print_backtrace()
|
|
#endif
|
|
*/
|
|
}
|
|
|
|
//#include <malloc/malloc.h>
|
|
//fn malloc_size(b byteptr) int
|
|
|
|
[unsafe]
|
|
pub fn v_realloc(b byteptr, n u32) byteptr {
|
|
$if prealloc {
|
|
unsafe {
|
|
new_ptr := malloc(int(n))
|
|
size := 0 //malloc_size(b)
|
|
C.memcpy(new_ptr, b, size)
|
|
return new_ptr
|
|
}
|
|
} $else {
|
|
ptr := unsafe {C.realloc(b, n)}
|
|
if ptr == 0 {
|
|
panic('realloc($n) failed')
|
|
}
|
|
return ptr
|
|
}
|
|
}
|
|
|
|
[unsafe]
|
|
pub fn v_calloc(n int) byteptr {
|
|
return C.calloc(1, n)
|
|
}
|
|
|
|
[unsafe]
|
|
pub fn vcalloc(n int) byteptr {
|
|
if n < 0 {
|
|
panic('calloc(<=0)')
|
|
} else if n == 0 {
|
|
return byteptr(0)
|
|
}
|
|
return C.calloc(1, n)
|
|
}
|
|
|
|
[unsafe]
|
|
pub fn free(ptr voidptr) {
|
|
$if prealloc {
|
|
return
|
|
}
|
|
C.free(ptr)
|
|
}
|
|
|
|
pub fn memdup(src voidptr, sz int) voidptr {
|
|
if sz == 0 {
|
|
return vcalloc(1)
|
|
}
|
|
unsafe {
|
|
mem := malloc(sz)
|
|
return C.memcpy(mem, src, sz)
|
|
}
|
|
}
|
|
|
|
fn v_ptr_free(ptr voidptr) {
|
|
$if prealloc {
|
|
return
|
|
}
|
|
C.free(ptr)
|
|
}
|
|
|
|
pub fn is_atty(fd int) int {
|
|
$if windows {
|
|
mut mode := u32(0)
|
|
osfh := voidptr(C._get_osfhandle(fd))
|
|
C.GetConsoleMode(osfh, voidptr(&mode))
|
|
return int(mode)
|
|
} $else {
|
|
return C.isatty(fd)
|
|
}
|
|
}
|
|
|
|
fn __as_cast(obj voidptr, obj_type, expected_type int) voidptr {
|
|
if obj_type != expected_type {
|
|
panic('as cast: cannot cast $obj_type to $expected_type')
|
|
}
|
|
return obj
|
|
}
|
|
|
|
// VAssertMetaInfo is used during assertions. An instance of it
|
|
// is filled in by compile time generated code, when an assertion fails.
|
|
pub struct VAssertMetaInfo {
|
|
pub:
|
|
fpath string // the source file path of the assertion
|
|
line_nr int // the line number of the assertion
|
|
fn_name string // the function name in which the assertion is
|
|
src string // the actual source line of the assertion
|
|
op string // the operation of the assertion, i.e. '==', '<', 'call', etc ...
|
|
llabel string // the left side of the infix expressions as source
|
|
rlabel string // the right side of the infix expressions as source
|
|
lvalue string // the stringified *actual value* of the left side of a failed assertion
|
|
rvalue string // the stringified *actual value* of the right side of a failed assertion
|
|
}
|
|
fn __print_assert_failure(i &VAssertMetaInfo) {
|
|
eprintln('${i.fpath}:${i.line_nr+1}: FAIL: fn ${i.fn_name}: assert ${i.src}')
|
|
if i.op.len > 0 && i.op != 'call' {
|
|
eprintln(' left value: ${i.llabel} = ${i.lvalue}')
|
|
if i.rlabel == i.rvalue {
|
|
eprintln(' right value: $i.rlabel')
|
|
}
|
|
else {
|
|
eprintln(' right value: ${i.rlabel} = ${i.rvalue}')
|
|
}
|
|
}
|
|
}
|
|
|
|
pub struct MethodArgs {
|
|
pub:
|
|
typ int
|
|
}
|
|
|
|
pub struct FunctionData {
|
|
pub:
|
|
name string
|
|
attrs []string
|
|
args []MethodArgs
|
|
return_type int
|
|
typ int
|
|
}
|
|
|
|
pub struct FieldData {
|
|
pub:
|
|
name string
|
|
attrs []string
|
|
is_pub bool
|
|
is_mut bool
|
|
typ int
|
|
}
|