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vh generation: consts + cleanup

pull/2511/head
Alexander Medvednikov 2019-10-23 08:18:44 +03:00
parent fcead2f79e
commit 8b74c711c6
5 changed files with 69 additions and 121 deletions
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26
vlib/compiler/cgen.v
View File

@ -289,16 +289,24 @@ fn os_name_to_ifdef(name string) string {
}
fn platform_postfix_to_ifdefguard(name string) string {
switch name {
case '.v': return '' // no guard needed
case '_win.v': return '#ifdef _WIN32'
case '_nix.v': return '#ifndef _WIN32'
case '_lin.v': return '#ifdef __linux__'
case '_mac.v': return '#ifdef __APPLE__'
case '_solaris.v': return '#ifdef __sun'
s := match name {
'.v' { '' }// no guard needed
'_win.v', '_windows.v' { '#ifdef _WIN32' }
'_nix.v' { '#ifndef _WIN32' }
'_lin.v', '_linux.v' { '#ifdef __linux__' }
'_mac.v', '_darwin.v' { '#ifdef __APPLE__' }
'_solaris.v' { '#ifdef __sun' }
else {
//verror('bad platform_postfix "$name"')
// TODO
''
}
}
verror('bad platform_postfix "$name"')
return ''
if s == '' {
verror('bad platform_postfix "$name"')
}
return s
}
// C struct definitions, ordered

1
vlib/compiler/main.v
View File

@ -111,6 +111,7 @@ pub mut:
// to increase compilation time.
// This is on by default, since a vast majority of users do not
// work on the builtin module itself.
//generating_vh bool
}
// Should be called by main at the end of the compilation process, to cleanup

120
vlib/compiler/module_header.v
View File

@ -15,108 +15,6 @@ import (
They are used together with pre-compiled modules.
*/
// "fn foo(a int) string"
fn (f &Fn) v_definition() string {
//t :=time.ticks()
mut sb := strings.new_builder(100)
if f.is_public {
sb.write('pub ')
}
sb.write('fn ')
if f.is_c {
sb.write('C.')
}
if f.is_method {
recv := f.args[0]
typ := v_type_str(recv.typ).replace('*', '')
mut mu := if recv.is_mut { 'mut' } else { '' }
if recv.ref {
mu = '&'
}
sb.write('($recv.name $mu $typ) ')
}
if f.name.contains('__') {
sb.write(f.name.all_after('__') + '(')
} else {
sb.write('$f.name(')
}
for i, arg in f.args {
if i == 0 && f.is_method { // skip the receiver
continue
}
typ := v_type_str(arg.typ).replace('*', '&')
if arg.name == '' {
sb.write(typ)
} else {
sb.write('$arg.name $typ')
}
if i != f.args.len - 1 {
sb.write(', ')
}
}
sb.write(')')
if f.typ != 'void' {
typ := v_type_str(f.typ).replace('*', '&')
sb.write(' ')
sb.write(typ)
sb.writeln(' ')
}
//println('ms: ${time.ticks() - t}')
return sb.str()
}
fn v_type_str(typ_ string) string {
mut typ := if typ_.ends_with('*') {
'*' + typ_.left(typ_.len - 1)
} else {
typ_
}
typ = typ.replace('Option_', '?')
// fn parent/alias?
if typ.starts_with('fn ') {
mut types := []string
fi_lpar := typ.index_byte(`(`)
li_rpar := typ.last_index_byte(`)`)
ret_type := typ.right(li_rpar+1)
for t in typ.substr(fi_lpar+1, li_rpar).split(',') {
types << v_type_str(t)
}
return 'fn (' + types.join(', ') + ')$ret_type'
}
typ = typ.replace('Option_', '?')
// multiple return
if typ.contains('_V_MulRet') {
words := typ.replace('_V_MulRet_', '').replace('_PTR_', '*').split('_V_')
typ = '('
for i in 0 .. words.len {
typ += v_type_str(words[i])
if i != words.len - 1 {
typ += ','
}
}
typ += ')'
return typ
}
//println('"$typ"')
if typ == '*void' {
return 'voidptr'
}
if typ == '*byte' {
return 'byteptr'
}
if typ.starts_with('array_') {
return '[]' + typ.right(6)
}
if typ.contains('__') {
opt := typ.starts_with('?')
typ = typ.all_after('__')
if opt {
typ = '?' + typ
}
}
return typ
}
// `mod` == "vlib/os"
fn generate_vh(mod string) {
println('\n\n\n\nGenerating a V header file for module `$mod`')
@ -145,6 +43,8 @@ fn generate_vh(mod string) {
//v.pref.generating_vh = true
for file in filtered {
mut p := v.new_parser_from_file(file)
p.scanner.is_vh = true
println('kek $file')
p.parse(.decl)
for i, tok in p.tokens {
if !p.tok.is_decl() {
@ -187,10 +87,23 @@ fn generate_fn(file os.File, tokens []Token, i int) {
}
fn generate_const(file os.File, tokens []Token, i int) {
//mut out := strings.new_builder(100)
mut out := strings.new_builder(100)
mut tok := tokens[i]
for i < tokens.len && tok.tok != .rpar {
out.write(tok.str())
out.write(' ')
if tokens[i+2].tok == .assign {
out.write('\n\t')
}
i++
tok = tokens[i]
}
out.writeln('\n)')
file.writeln(out.str())
}
/*
fn (v &V) generate_vh_old() {
println('\n\n\n\nGenerating a V header file for module `$v.mod`')
mod_path := v.mod.replace('.', os.path_separator)
@ -333,4 +246,5 @@ fn (v &V) generate_vh_old() {
}
*/
}
*/

21
vlib/compiler/parser.v
View File

@ -20,7 +20,7 @@ struct Token {
struct Parser {
file_path_id string // unique id. if parsing file will be path eg, "/home/user/hello.v"
file_name string // "hello.v"
file_platform string // ".v", "_win.v", "_nix.v", "_mac.v", "_lin.v" ...
file_platform string // ".v", "_windows.v", "_nix.v", "_darwin.v", "_linux.v" ...
// When p.file_pcguard != '', it contains a
// C ifdef guard clause that must be put before
// the #include directives in the parsed .v file
@ -106,8 +106,21 @@ fn (v mut V) new_parser_from_file(path string) Parser {
//println('new_parser("$path")')
mut path_pcguard := ''
mut path_platform := '.v'
for path_ending in ['_lin.v', '_mac.v', '_win.v', '_nix.v'] {
for path_ending in ['_lin.v', '_mac.v', '_win.v', '_nix.v', '_linux.v',
'_darwin.v', '_windows.v'] {
if path.ends_with(path_ending) {
if path_ending == '_mac.v' {
p := path_ending.replace('_mac.v', '_darwin.v')
println('warning: use "$p" file name instead of "$path"')
}
if path_ending == '_lin.v' {
p := path_ending.replace('_lin.v', '_linux.v')
println('warning: use "$p" file name instead of "$path"')
}
if path_ending == '_win.v' {
p := path_ending.replace('_win.v', '_windows.v')
println('warning: use "$p" file name instead of "$path"')
}
path_platform = path_ending
path_pcguard = platform_postfix_to_ifdefguard( path_ending )
break
@ -124,6 +137,10 @@ fn (v mut V) new_parser_from_file(path string) Parser {
if p.pref.building_v {
p.scanner.should_print_relative_paths_on_error = true
}
//if p.pref.generating_vh {
// Keep newlines
//p.scanner.is_vh = true
//}
p.scan_tokens()
//p.scanner.debug_tokens()
return p

18
vlib/compiler/scanner.v
View File

@ -41,6 +41,7 @@ mut:
quote byte // which quote is used to denote current string: ' or "
line_ends []int // the positions of source lines ends (i.e. \n signs)
nlines int // total number of lines in the source file that were scanned
is_vh bool // Keep newlines
}
// new scanner from file.
@ -221,7 +222,12 @@ fn (s mut Scanner) ident_number() string {
}
fn (s mut Scanner) skip_whitespace() {
//if s.is_vh { println('vh') return }
for s.pos < s.text.len && s.text[s.pos].is_white() {
if is_nl(s.text[s.pos]) && s.is_vh {
return
}
// Count \r\n as one line
if is_nl(s.text[s.pos]) && !s.expect('\r\n', s.pos-1) {
s.inc_line_number()
@ -231,10 +237,10 @@ fn (s mut Scanner) skip_whitespace() {
}
fn (s mut Scanner) scan() ScanRes {
if s.line_comment != '' {
//s.fgenln('// LOL "$s.line_comment"')
//if s.line_comment != '' {
//s.fgenln('// LC "$s.line_comment"')
//s.line_comment = ''
}
//}
if s.started {
s.pos++
}
@ -242,13 +248,12 @@ fn (s mut Scanner) scan() ScanRes {
if s.pos >= s.text.len {
return scan_res(.eof, '')
}
// skip whitespace
if !s.inside_string {
s.skip_whitespace()
}
// End of $var, start next string
if s.inter_end {
if s.text[s.pos] == s.quote { //single_quote {
if s.text[s.pos] == s.quote {
s.inter_end = false
return scan_res(.str, '')
}
@ -419,6 +424,7 @@ fn (s mut Scanner) scan() ScanRes {
s.error('@ must be used before keywords (e.g. `@type string`)')
}
return scan_res(.name, name)
/*
case `\r`:
if nextc == `\n` {
s.pos++
@ -428,6 +434,7 @@ fn (s mut Scanner) scan() ScanRes {
case `\n`:
s.last_nl_pos = s.pos
return scan_res(.nl, '')
*/
case `.`:
if nextc == `.` {
s.pos++
@ -783,6 +790,7 @@ fn is_name_char(c byte) bool {
return c.is_letter() || c == `_`
}
[inline]
fn is_nl(c byte) bool {
return c == `\r` || c == `\n`
}