mirror of
https://github.com/golang/go
synced 2024-11-22 07:44:43 -07:00
added &^ and &^=
R=rsc DELTA=14 (12 added, 0 deleted, 2 changed) OCL=26278 CL=26348
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parent
5a27079801
commit
1b141ca068
@ -447,7 +447,13 @@ scan_again:
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case '>': tok = S.switch4(token.GTR, token.GEQ, '>', token.SHR, token.SHR_ASSIGN);
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case '=': tok = S.switch2(token.ASSIGN, token.EQL);
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case '!': tok = S.switch2(token.NOT, token.NEQ);
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case '&': tok = S.switch3(token.AND, token.AND_ASSIGN, '&', token.LAND);
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case '&':
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if S.ch == '^' {
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S.next();
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tok = S.switch2(token.AND_NOT, token.AND_NOT_ASSIGN);
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} else {
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tok = S.switch3(token.AND, token.AND_ASSIGN, '&', token.LAND);
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}
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case '|': tok = S.switch3(token.OR, token.OR_ASSIGN, '|', token.LOR);
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default: S.error(loc, "illegal character " + charString(ch));
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}
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@ -76,6 +76,7 @@ var tokens = [...]elt{
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elt{ token.XOR, "^", operator },
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elt{ token.SHL, "<<", operator },
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elt{ token.SHR, ">>", operator },
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elt{ token.AND_NOT, "&^", operator },
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elt{ token.ADD_ASSIGN, "+=", operator },
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elt{ token.SUB_ASSIGN, "-=", operator },
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@ -88,6 +89,7 @@ var tokens = [...]elt{
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elt{ token.XOR_ASSIGN, "^=", operator },
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elt{ token.SHL_ASSIGN, "<<=", operator },
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elt{ token.SHR_ASSIGN, ">>=", operator },
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elt{ token.AND_NOT_ASSIGN, "&^=", operator },
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elt{ token.LAND, "&&", operator },
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elt{ token.LOR, "||", operator },
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@ -40,6 +40,7 @@ const (
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XOR;
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SHL;
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SHR;
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AND_NOT;
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ADD_ASSIGN;
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SUB_ASSIGN;
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@ -52,6 +53,7 @@ const (
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XOR_ASSIGN;
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SHL_ASSIGN;
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SHR_ASSIGN;
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AND_NOT_ASSIGN;
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LAND;
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LOR;
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@ -145,6 +147,7 @@ var tokens = map [int] string {
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XOR : "^",
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SHL : "<<",
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SHR : ">>",
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AND_NOT : "&^",
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ADD_ASSIGN : "+=",
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SUB_ASSIGN : "-=",
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@ -157,6 +160,7 @@ var tokens = map [int] string {
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XOR_ASSIGN : "^=",
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SHL_ASSIGN : "<<=",
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SHR_ASSIGN : ">>=",
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AND_NOT_ASSIGN : "&^=",
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LAND : "&&",
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LOR : "||",
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@ -264,7 +268,7 @@ func Precedence(tok int) int {
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return 4;
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case ADD, SUB, OR, XOR:
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return 5;
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case MUL, QUO, REM, SHL, SHR, AND:
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case MUL, QUO, REM, SHL, SHR, AND, AND_NOT:
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return 6;
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}
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return LowestPrec;
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