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v panic debug information

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This commit is contained in:
joe-conigliaro 2019-07-30 23:08:14 +10:00 committed by Alexander Medvednikov
parent 07ed320110
commit 5e57d099d7
2 changed files with 23 additions and 0 deletions
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10
compiler/fn.v
View File

@ -752,6 +752,16 @@ fn (p mut Parser) fn_call_args(f mut Fn) *Fn {
p.check(.rpar)
return f
}
// add debug information to panic when -debug arg is passed
if p.v.pref.is_debug && f.name == 'panic' {
mod_name := p.mod.replace('_dot_', '.')
fn_name := p.cur_fn.name.replace('${p.mod}__', '')
file_path := p.file_path.replace('\\', '\\\\') // escape \
p.cgen.resetln(p.cgen.cur_line.replace(
'v_panic (',
'_panic_debug ($p.scanner.line_nr, tos2("$file_path"), tos2("$mod_name"), tos2("$fn_name"), '
))
}
// Receiver - first arg
for i, arg in f.args {
// println('$i) arg=$arg.name')

13
vlib/builtin/builtin.v
View File

@ -26,6 +26,19 @@ pub fn print_backtrace() {
}
}
// replaces panic when -debug arg is passed
fn _panic_debug(line_no int, file, mod, fn_name, s string) {
println('================ V panic ================')
println(' module: $mod')
println(' function: ${fn_name}()')
println(' file: $file')
println(' line: ' + line_no.str())
println(' message: $s')
println('=========================================')
print_backtrace()
C.exit(1)
}
pub fn panic(s string) {
println('V panic: $s')
print_backtrace()