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Fix parser expectation error for amp token #18101

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Fix parser expectation error for amp token #18101

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12 changes: 12 additions & 0 deletions Zend/tests/gh18026.phpt
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Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
--TEST--
GH-18026: Confusing "amp" reference in parser error
--FILE--
<?php

class Demo {
private (set) mixed $v1;
}

?>
--EXPECTF--
Parse error: syntax error, unexpected token ")", expecting token "&" in %s on line %d
8 changes: 8 additions & 0 deletions Zend/zend_language_parser.y
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Expand Up @@ -1819,6 +1819,14 @@ static YYSIZE_T zend_yytnamerr(char *yyres, const char *yystr)
return sizeof("\"\\\"")-1;
}

/* We used "amp" as a dummy label to avoid a duplicate token literal warning. */
if (strcmp(toktype, "\"amp\"") == 0) {
if (yyres) {
yystpcpy(yyres, "token \"&\"");
}
return sizeof("token \"&\"")-1;
}

/* Strip off the outer quote marks */
if (toktype_len >= 2 && *toktype == '"') {
toktype++;
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