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Optimize hot UI accessors and CSS length parsing:

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Inline frequently used scene and UI state accessors to reduce function
  call overhead during layout, rendering, and rich-text traversal.

  Add string-view numeric conversion support and parse CSS length values
  without temporary number or unit strings. Preserve existing string
  overloads for compatibility and keep CSS function parsing unchanged.

  Add focused parsing coverage and benchmarks. Full-suite profiling showed
  substantial reductions in layout invalidation, whitespace traversal, and
  CSS length parsing costs.
This commit is contained in:
Martín Lucas Golini
2026-07-11 00:10:56 -03:00
parent ebae37b462
commit f6bce5d044
21 changed files with 344 additions and 321 deletions
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25
src/tests/unit_tests/stringsoperations_tests.cpp
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@@ -18,6 +18,18 @@ UTEST( String, countLines ) {
EXPECT_EQ( static_cast<size_t>( 3 ), String::countLines( "\n\n" ) );
}
UTEST( String, fromStringView ) {
const std::string values = "1234.5px";
Float floatValue = 0;
EXPECT_TRUE( String::fromString( floatValue, std::string_view( values ).substr( 0, 6 ) ) );
EXPECT_NEAR( 1234.5f, floatValue, 0.0001f );
EXPECT_FALSE( String::fromString( floatValue, std::string_view( values ) ) );
Int32 intValue = 0;
EXPECT_TRUE( String::fromString( intValue, std::string_view( values ).substr( 0, 4 ) ) );
EXPECT_EQ( 1234, intValue );
}
UTEST( FileSystem, fileCountLines ) {
std::string path = Sys::getTempPath() + "eepp_test_count_lines.txt";
FileSystem::fileWrite( path, "A\nB\nC" );
@@ -153,7 +165,8 @@ UTEST( String, isLatin1 ) {
EXPECT_TRUE( str255.isLatin1() );
// Complex string with Latin1 chars
String complexLatin1 = String::fromUtf8( "Héllø Wørld"sv ); // Assuming these are in Latin1 range
String complexLatin1 =
String::fromUtf8( "Héllø Wørld"sv ); // Assuming these are in Latin1 range
// Note: 'ø' is 0xF8 (248), 'é' is 0xE9 (233). Both in Latin1.
EXPECT_TRUE( complexLatin1.isLatin1() );
@@ -162,7 +175,6 @@ UTEST( String, isLatin1 ) {
// 32 chars of 255
String longLatin1( 32, (String::StringBaseType)255 );
EXPECT_TRUE( longLatin1.isLatin1() );
}
}
@@ -187,14 +199,15 @@ UTEST( String, isAsciiHighBit ) {
UTEST( String, isAsciiPatterns ) {
// Alternating
String alt;
for (int i = 0; i < 100; i++) {
alt += (i % 2 == 0) ? 'a' : (char)128;
for ( int i = 0; i < 100; i++ ) {
alt += ( i % 2 == 0 ) ? 'a' : (char)128;
}
EXPECT_FALSE( alt.isAscii() );
// Block of invalid in middle of valid
String block(100, 'a');
for(int i=40; i<60; i++) block[i] = 200;
String block( 100, 'a' );
for ( int i = 40; i < 60; i++ )
block[i] = 200;
EXPECT_FALSE( block.isAscii() );
}