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Optimize SerializeVisitor._visitString.

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Natalie Weizenbaum 2016-10-04 23:28:46 -07:00 committed by Natalie Weizenbaum
parent c42afb4f16
commit c4ea6012dc
1 changed files with 21 additions and 9 deletions
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30
lib/src/visitor/serialize.dart
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@ -321,15 +321,19 @@ class _SerializeCssVisitor
}
void visitString(SassString string) {
_buffer.write(string.hasQuotes
? _visitString(string.text)
: string.text.replaceAll("\n", " "));
if (string.hasQuotes) {
_visitString(string.text);
} else {
_buffer.write(string.text.replaceAll("\n", " "));
}
}
String _visitString(String string, {bool forceDoubleQuote: false}) {
void _visitString(String string, {bool forceDoubleQuote: false}) {
var includesSingleQuote = false;
var includesDoubleQuote = false;
var buffer = new StringBuffer();
var buffer = forceDoubleQuote ? _buffer : new StringBuffer();
if (forceDoubleQuote) buffer.writeCharCode($double_quote);
for (var i = 0; i < string.length; i++) {
var char = string.codeUnitAt(i);
switch (char) {
@ -337,7 +341,8 @@ class _SerializeCssVisitor
if (forceDoubleQuote) {
buffer.writeCharCode($single_quote);
} else if (includesDoubleQuote) {
return _visitString(string, forceDoubleQuote: true);
_visitString(string, forceDoubleQuote: true);
return;
} else {
includesSingleQuote = true;
buffer.writeCharCode($single_quote);
@ -349,7 +354,8 @@ class _SerializeCssVisitor
buffer.writeCharCode($backslash);
buffer.writeCharCode($double_quote);
} else if (includesSingleQuote) {
return _visitString(string, forceDoubleQuote: true);
_visitString(string, forceDoubleQuote: true);
return;
} else {
includesDoubleQuote = true;
buffer.writeCharCode($double_quote);
@ -380,8 +386,14 @@ class _SerializeCssVisitor
}
}
var doubleQuote = forceDoubleQuote || !includesDoubleQuote;
return doubleQuote ? '"$buffer"' : "'$buffer'";
if (forceDoubleQuote) {
buffer.writeCharCode($double_quote);
} else {
var quote = includesDoubleQuote ? $single_quote : $double_quote;
_buffer.writeCharCode(quote);
_buffer.write(buffer);
_buffer.writeCharCode(quote);
}
}
// ## Selectors