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builtin,ast: apply small performance improvements, suggested by hotspot

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This commit is contained in:
Delyan Angelov
2021-11-07 13:30:40 +02:00
parent d8f971ffb5
commit 80242c8041
8 changed files with 74 additions and 16 deletions
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22
vlib/builtin/string.v
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@ -1041,8 +1041,10 @@ pub fn (s string) capitalize() string {
return res
}
// is_capital returns `true` if the first character in the string is a capital letter.
// is_capital returns `true`, if the first character in the string `s`,
// is a capital letter, and the rest are NOT.
// Example: assert 'Hello'.is_capital() == true
// Example: assert 'HelloWorld'.is_capital() == false
[direct_array_access]
pub fn (s string) is_capital() bool {
if s.len == 0 || !(s[0] >= `A` && s[0] <= `Z`) {
@ -1056,6 +1058,18 @@ pub fn (s string) is_capital() bool {
return true
}
// starts_with_capital returns `true`, if the first character in the string `s`,
// is a capital letter, even if the rest are not.
// Example: assert 'Hello'.starts_with_capital() == true
// Example: assert 'Hello. World.'.starts_with_capital() == true
[direct_array_access]
pub fn (s string) starts_with_capital() bool {
if s.len == 0 || !(s[0] >= `A` && s[0] <= `Z`) {
return false
}
return true
}
// title returns the string with each word capitalized.
// Example: assert 'hello v developer'.title() == 'Hello V Developer'
pub fn (s string) title() string {
@ -1068,7 +1082,7 @@ pub fn (s string) title() string {
return title
}
// is_title returns true if all words of the string is capitalized.
// is_title returns true if all words of the string are capitalized.
// Example: assert 'Hello V Developer'.is_title() == true
pub fn (s string) is_title() bool {
words := s.split(' ')
@ -1292,7 +1306,7 @@ pub fn (c byte) is_digit() bool {
// Example: assert byte(`F`) == true
[inline]
pub fn (c byte) is_hex_digit() bool {
return c.is_digit() || (c >= `a` && c <= `f`) || (c >= `A` && c <= `F`)
return (c >= `0` && c <= `9`) || (c >= `a` && c <= `f`) || (c >= `A` && c <= `F`)
}
// is_oct_digit returns `true` if the byte is in range 0-7 and `false` otherwise.
@ -1320,7 +1334,7 @@ pub fn (c byte) is_letter() bool {
// Example: assert byte(`V`) == true
[inline]
pub fn (c byte) is_alnum() bool {
return c.is_letter() || c.is_digit()
return (c >= `a` && c <= `z`) || (c >= `A` && c <= `Z`) || (c >= `0` && c <= `9`)
}
// free allows for manually freeing the memory occupied by the string