remove unnecessary casts everywhere

.github/workflows/ci.yml

@@ -41,8 +41,8 @@ jobs:
       run: |
         brew services start postgresql
         sleep 3
-        psql -c -d postgres 'select rolname from pg_roles'
-        psql -U postgres -c 'create database customerdb;'
+        psql -c -d postgres -c 'select rolname from pg_roles'
+        psql -U postgres -d postgres -c 'create database customerdb;'
         psql -d customerdb -f examples/database/pg/mydb.sql
     - name: Test v->c
       run: ./v test-compiler

vlib/clipboard/clipboard_windows.v

@@ -39,6 +39,7 @@ struct Clipboard {
     retry_delay int
     mut:
     hwnd HWND
+    foo int // TODO remove
 }
 
 fn (cb &Clipboard) get_clipboard_lock() bool {
@@ -92,14 +93,16 @@ fn (cb &Clipboard) has_ownership() bool {
     return GetClipboardOwner() == cb.hwnd
 }
 
-fn (cb &Clipboard) clear() {
+fn (cb mut Clipboard) clear() {
     if !cb.get_clipboard_lock() {return}
     EmptyClipboard()
     CloseClipboard()
+	cb.foo = 0
 }
 
-fn (cb &Clipboard) free(){
+fn (cb mut Clipboard) free(){
     DestroyWindow(cb.hwnd)
+	cb.foo = 0
 }
 
 // the string.to_wide doesn't work with SetClipboardData, don't know why
@@ -115,7 +118,8 @@ fn to_wide(text string) &HGLOBAL {
     return buf
 }
 
-fn (cb &Clipboard) set_text(text string) bool {
+fn (cb mut Clipboard) set_text(text string) bool {
+	cb.foo = 0
     buf := to_wide(text)
     if !cb.get_clipboard_lock() {
         GlobalFree(buf)
@@ -135,7 +139,8 @@ fn (cb &Clipboard) set_text(text string) bool {
     return true
 }
 
-fn (cb &Clipboard) get_text() string {
+fn (cb mut Clipboard) get_text() string {
+	cb.foo = 0
     if !cb.get_clipboard_lock() {
         return ""
     }

vlib/compiler/token.v

@@ -129,7 +129,7 @@ fn build_keys() map[string]int {
 	mut res := map[string]int
 	for t := int(TokenKind.keyword_beg) + 1; t < int(TokenKind.keyword_end); t++ {
 		key := TokenStr[t]
-		res[key] = int(t)
+		res[key] = t
 	}
 	return res
 }

vlib/os/os.v

@@ -410,7 +410,7 @@ fn vpclose(f voidptr) int {
 		return int( C._pclose(f) )
 	}
 	$else {
-		ret , _ := posix_wait4_to_exit_status( int( C.pclose(f) ) )
+		ret , _ := posix_wait4_to_exit_status(C.pclose(f))
 		return ret
 	}
 }
@@ -428,7 +428,7 @@ pub fn system(cmd string) int {
 		// TODO remove panic
 		//panic(';, &&, || and \\n are not allowed in shell commands')
 	//}
-	mut ret := int(0)
+	mut ret := 0
 	$if windows {
 		// overcome bug in system & _wsystem (cmd) when first char is quote `"`
 		wcmd := if cmd.len > 1 && cmd[0] == `"` && cmd[1] != `"` { '"$cmd"' } else { cmd }

vlib/os/os_nix.v

@@ -65,7 +65,7 @@ pub fn is_dir(path string) bool {
 pub fn mkdir(path string) ?bool {
 	if path == '.' { return true }
 	apath := os.realpath( path )
-	r := int(C.mkdir(apath.str, 511))
+	r := C.mkdir(apath.str, 511)
 	if r == -1 {
 		return error(get_error_msg(C.errno))
 	}

vlib/rand/pcg32.v

@@ -10,14 +10,14 @@ mut:
 }
 /**
  * new_pcg32 - a Pcg32 PRNG generator
- * @param initstate - the initial state of the PRNG. 
+ * @param initstate - the initial state of the PRNG.
  * @param initseq - the stream/step of the PRNG.
  * @return a new Pcg32 PRNG instance
 */
 pub fn new_pcg32(initstate u64, initseq u64) Pcg32 {
 	mut rng := Pcg32{}
 	rng.state = u64(0)
-	rng.inc = u64( u64(initseq << u64(1)) | u64(1) )
+	rng.inc = (initseq << u64(1)) | u64(1)
 	rng.next()
 	rng.state += initstate
 	rng.next()
@@ -27,12 +27,12 @@ pub fn new_pcg32(initstate u64, initseq u64) Pcg32 {
  * Pcg32.next - update the PRNG state and get back the next random number
  * @return the generated pseudo random number
 */
-[inline] pub fn (rng mut Pcg32) next() u32 {	
+[inline] pub fn (rng mut Pcg32) next() u32 {
 	oldstate := rng.state
-	rng.state = oldstate * u64(6364136223846793005) + rng.inc
-	xorshifted := u32( u64( u64(oldstate >> u64(18)) ^ oldstate) >> u64(27) )
+	rng.state = oldstate * (6364136223846793005) + rng.inc
+	xorshifted := u32( ( (oldstate >> u64(18)) ^ oldstate) >> u64(27) )
 	rot := u32( oldstate >> u64(59) )
-	return u32( (xorshifted >> rot) | (xorshifted << ((-rot) & u32(31))) )
+	return ( (xorshifted >> rot) | (xorshifted << ((-rot) & u32(31))) )
 }
 /**
  * Pcg32.bounded_next - update the PRNG state. Get the next number <  bound
@@ -42,7 +42,7 @@ pub fn new_pcg32(initstate u64, initseq u64) Pcg32 {
 [inline] pub fn (rng mut Pcg32) bounded_next(bound u32) u32 {
 	// To avoid bias, we need to make the range of the RNG a multiple of
 	// bound, which we do by dropping output less than a threshold.
-	threshold := u32( -bound % bound )
+	threshold := ( -bound % bound )
 	// Uniformity guarantees that loop below will terminate. In practice, it
 	// should usually terminate quickly; on average (assuming all bounds are
 	// equally likely), 82.25% of the time, we can expect it to require just
@@ -51,8 +51,8 @@ pub fn new_pcg32(initstate u64, initseq u64) Pcg32 {
 	for {
 		r := rng.next()
 		if r >= threshold {
-			return u32( r % bound )
-		}			
+			return ( r % bound )
+		}
 	}
 	return u32(0)
 }

vlib/rand/splitmix64.v

@@ -8,7 +8,7 @@ mut:
 }
 /**
  * new_splitmix64 - a Splitmix64 PRNG generator
- * @param seed the initial seed of the PRNG. 
+ * @param seed the initial seed of the PRNG.
  * @return a new Splitmix64 PRNG instance
 */
 pub fn new_splitmix64(seed u64) Splitmix64 {
@@ -19,11 +19,11 @@ pub fn new_splitmix64(seed u64) Splitmix64 {
  * @return the generated pseudo random number
 */
 [inline] pub fn (rng mut Splitmix64) next() u64 {
-	rng.state += u64(0x9e3779b97f4a7c15)
+	rng.state += (0x9e3779b97f4a7c15)
 	mut z := rng.state
-	z = (z ^ u64((z >> u64(30)))) * u64(0xbf58476d1ce4e5b9)
-	z = (z ^ u64((z >> u64(27)))) * u64(0x94d049bb133111eb)
-	return z ^ u64(z >> u64(31))
+	z = (z ^ ((z >> u64(30)))) * (0xbf58476d1ce4e5b9)
+	z = (z ^ ((z >> u64(27)))) * (0x94d049bb133111eb)
+	return z ^ (z >> (31))
 }
 /**
  * Splitmix64.bounded_next - Get the next random number < bound
@@ -31,12 +31,12 @@ pub fn new_splitmix64(seed u64) Splitmix64 {
  * @return the generated pseudo random number
 */
 [inline] pub fn (rng mut Splitmix64) bounded_next(bound u64) u64 {
-	threshold := u64( -bound % bound )
+	threshold := -bound % bound
 	for {
 		r := rng.next()
 		if r >= threshold {
-			return u64( r % bound )
-		}			
+			return r % bound
+		}
 	}
 	return u64(0)
 }

vlib/time/time.v

@@ -150,13 +150,13 @@ pub fn unix(abs int) Time {
 	y += n
 	d -= 365 * n
 
-	yday := int(d)
+	yday := d
 	mut day := yday
 
 	year := abs / int(3.154e+7) + 1970 //int(i64(y) + absolute_zero_year)
-	hour := int(abs%seconds_per_day) / seconds_per_hour
-	minute := int(abs % seconds_per_hour) / seconds_per_minute
-	second := int(abs % seconds_per_minute)
+	hour := (abs%seconds_per_day) / seconds_per_hour
+	minute := (abs % seconds_per_hour) / seconds_per_minute
+	second := (abs % seconds_per_minute)
 
 	if is_leap_year(year) {
 		// Leap year
@@ -174,12 +174,12 @@ pub fn unix(abs int) Time {
 	// The estimate may be too low by at most one month, so adjust.
 	mut month := day / 31
 	mut begin := 0
-	end := int(days_before[month+1])
+	end := (days_before[month+1])
 	if day >= end {
 		month++
 		begin = end
 	} else {
-		begin = int(days_before[month])
+		begin = (days_before[month])
 	}
 
 	month++ // because January is 1