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ast: use string builder for StringInterLiteral.str() (#10207)

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Lukas Neubert 2021-05-27 09:17:51 +02:00 committed by GitHub
parent 9ee1d8c848
commit d5cacd1e5f
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2 changed files with 14 additions and 12 deletions
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22
vlib/v/ast/str.v
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@ -362,26 +362,26 @@ pub fn (x Expr) str() string {
return '__offsetof($x.struct_type, $x.field)'
}
StringInterLiteral {
mut res := []string{}
res << "'"
mut res := strings.new_builder(50)
res.write_string("'")
for i, val in x.vals {
res << val
res.write_string(val)
if i >= x.exprs.len {
break
}
res << '$'
res.write_string('$')
fspec_str, needs_braces := x.get_fspec_braces(i)
if needs_braces {
res << '{'
res << x.exprs[i].str()
res << fspec_str
res << '}'
res.write_string('{')
res.write_string(x.exprs[i].str())
res.write_string(fspec_str)
res.write_string('}')
} else {
res << x.exprs[i].str()
res.write_string(x.exprs[i].str())
}
}
res << "'"
return res.join('')
res.write_string("'")
return res.str()
}
StringLiteral {
return "'$x.val'"

4
vlib/v/fmt/fmt.v
View File

@ -2389,7 +2389,6 @@ pub fn (mut f Fmt) string_literal(node ast.StringLiteral) {
}
pub fn (mut f Fmt) string_inter_literal(node ast.StringInterLiteral) {
// TODO: this code is very similar to ast.Expr.str()
mut quote := "'"
for val in node.vals {
if val.contains('\\"') {
@ -2407,6 +2406,9 @@ pub fn (mut f Fmt) string_inter_literal(node ast.StringInterLiteral) {
quote = '"'
}
}
// TODO: this code is very similar to ast.Expr.str()
// serkonda7: it can not fully be replaced tho as ´f.expr()´ and `ast.Expr.str()`
// work too different for the various exprs that are interpolated
f.write(quote)
for i, val in node.vals {
f.write(val)