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Micro-optimizations

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- Make structs smaller
- Introduce Result struct and use it to represent matched items instead of
  reusing Item struct for that purpose
- Avoid unnecessary memory allocation
- Avoid growing slice from the initial capacity
- Code cleanup
This commit is contained in:
Junegunn Choi
2016-08-19 02:39:32 +09:00
parent f7f01d109e
commit 37dc273148
19 changed files with 236 additions and 570 deletions
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84
src/ansi_test.go
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@@ -16,7 +16,7 @@ func TestExtractColor(t *testing.T) {
src := "hello world"
var state *ansiState
clean := "\x1b[0m"
check := func(assertion func(ansiOffsets []ansiOffset, state *ansiState)) {
check := func(assertion func(ansiOffsets *[]ansiOffset, state *ansiState)) {
output, ansiOffsets, newState := extractColor(src, state, nil)
state = newState
if output != "hello world" {
@@ -26,127 +26,127 @@ func TestExtractColor(t *testing.T) {
assertion(ansiOffsets, state)
}
check(func(offsets []ansiOffset, state *ansiState) {
if len(offsets) > 0 {
check(func(offsets *[]ansiOffset, state *ansiState) {
if offsets != nil {
t.Fail()
}
})
state = nil
src = "\x1b[0mhello world"
check(func(offsets []ansiOffset, state *ansiState) {
if len(offsets) > 0 {
check(func(offsets *[]ansiOffset, state *ansiState) {
if offsets != nil {
t.Fail()
}
})
state = nil
src = "\x1b[1mhello world"
check(func(offsets []ansiOffset, state *ansiState) {
if len(offsets) != 1 {
check(func(offsets *[]ansiOffset, state *ansiState) {
if len(*offsets) != 1 {
t.Fail()
}
assert(offsets[0], 0, 11, -1, -1, true)
assert((*offsets)[0], 0, 11, -1, -1, true)
})
state = nil
src = "\x1b[1mhello \x1b[mworld"
check(func(offsets []ansiOffset, state *ansiState) {
if len(offsets) != 1 {
check(func(offsets *[]ansiOffset, state *ansiState) {
if len(*offsets) != 1 {
t.Fail()
}
assert(offsets[0], 0, 6, -1, -1, true)
assert((*offsets)[0], 0, 6, -1, -1, true)
})
state = nil
src = "\x1b[1mhello \x1b[Kworld"
check(func(offsets []ansiOffset, state *ansiState) {
if len(offsets) != 1 {
check(func(offsets *[]ansiOffset, state *ansiState) {
if len(*offsets) != 1 {
t.Fail()
}
assert(offsets[0], 0, 11, -1, -1, true)
assert((*offsets)[0], 0, 11, -1, -1, true)
})
state = nil
src = "hello \x1b[34;45;1mworld"
check(func(offsets []ansiOffset, state *ansiState) {
if len(offsets) != 1 {
check(func(offsets *[]ansiOffset, state *ansiState) {
if len(*offsets) != 1 {
t.Fail()
}
assert(offsets[0], 6, 11, 4, 5, true)
assert((*offsets)[0], 6, 11, 4, 5, true)
})
state = nil
src = "hello \x1b[34;45;1mwor\x1b[34;45;1mld"
check(func(offsets []ansiOffset, state *ansiState) {
if len(offsets) != 1 {
check(func(offsets *[]ansiOffset, state *ansiState) {
if len(*offsets) != 1 {
t.Fail()
}
assert(offsets[0], 6, 11, 4, 5, true)
assert((*offsets)[0], 6, 11, 4, 5, true)
})
state = nil
src = "hello \x1b[34;45;1mwor\x1b[0mld"
check(func(offsets []ansiOffset, state *ansiState) {
if len(offsets) != 1 {
check(func(offsets *[]ansiOffset, state *ansiState) {
if len(*offsets) != 1 {
t.Fail()
}
assert(offsets[0], 6, 9, 4, 5, true)
assert((*offsets)[0], 6, 9, 4, 5, true)
})
state = nil
src = "hello \x1b[34;48;5;233;1mwo\x1b[38;5;161mr\x1b[0ml\x1b[38;5;161md"
check(func(offsets []ansiOffset, state *ansiState) {
if len(offsets) != 3 {
check(func(offsets *[]ansiOffset, state *ansiState) {
if len(*offsets) != 3 {
t.Fail()
}
assert(offsets[0], 6, 8, 4, 233, true)
assert(offsets[1], 8, 9, 161, 233, true)
assert(offsets[2], 10, 11, 161, -1, false)
assert((*offsets)[0], 6, 8, 4, 233, true)
assert((*offsets)[1], 8, 9, 161, 233, true)
assert((*offsets)[2], 10, 11, 161, -1, false)
})
// {38,48};5;{38,48}
state = nil
src = "hello \x1b[38;5;38;48;5;48;1mwor\x1b[38;5;48;48;5;38ml\x1b[0md"
check(func(offsets []ansiOffset, state *ansiState) {
if len(offsets) != 2 {
check(func(offsets *[]ansiOffset, state *ansiState) {
if len(*offsets) != 2 {
t.Fail()
}
assert(offsets[0], 6, 9, 38, 48, true)
assert(offsets[1], 9, 10, 48, 38, true)
assert((*offsets)[0], 6, 9, 38, 48, true)
assert((*offsets)[1], 9, 10, 48, 38, true)
})
src = "hello \x1b[32;1mworld"
check(func(offsets []ansiOffset, state *ansiState) {
if len(offsets) != 1 {
check(func(offsets *[]ansiOffset, state *ansiState) {
if len(*offsets) != 1 {
t.Fail()
}
if state.fg != 2 || state.bg != -1 || !state.bold {
t.Fail()
}
assert(offsets[0], 6, 11, 2, -1, true)
assert((*offsets)[0], 6, 11, 2, -1, true)
})
src = "hello world"
check(func(offsets []ansiOffset, state *ansiState) {
if len(offsets) != 1 {
check(func(offsets *[]ansiOffset, state *ansiState) {
if len(*offsets) != 1 {
t.Fail()
}
if state.fg != 2 || state.bg != -1 || !state.bold {
t.Fail()
}
assert(offsets[0], 0, 11, 2, -1, true)
assert((*offsets)[0], 0, 11, 2, -1, true)
})
src = "hello \x1b[0;38;5;200;48;5;100mworld"
check(func(offsets []ansiOffset, state *ansiState) {
if len(offsets) != 2 {
check(func(offsets *[]ansiOffset, state *ansiState) {
if len(*offsets) != 2 {
t.Fail()
}
if state.fg != 200 || state.bg != 100 || state.bold {
t.Fail()
}
assert(offsets[0], 0, 6, 2, -1, true)
assert(offsets[1], 6, 11, 200, 100, false)
assert((*offsets)[0], 0, 6, 2, -1, true)
assert((*offsets)[1], 6, 11, 200, 100, false)
})
}