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parser: interpolation calling twice fix

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if string interpolation needs to call a function, it will cache the
return to .len & .str usage in the generated code
This commit is contained in:
Vinicius Rangel 2019-10-17 01:02:02 -03:00 committed by Alexander Medvednikov
parent 5481f226dd
commit 96152510e5
1 changed files with 3 additions and 1 deletions
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4
vlib/compiler/parser.v
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@ -2907,7 +2907,9 @@ fn (p mut Parser) string_expr() {
if is_array && !has_str_method {
p.gen_array_str(typ2)
}
args = args.all_before_last(val) + '${typ}_str(${val}).len, ${typ}_str(${val}).str'
tmp_var := p.get_tmp()
p.cgen.insert_before('string $tmp_var = ${typ}_str(${val});')
args = args.all_before_last(val) + '${tmp_var}.len, ${tmp_var}.str'
format += '%.*s '
}
else {