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Implement compound assignment operators **= and >>>= (#2158)

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Rangi authored and GitHub committed 2026-09-26 19:10:39 +02:00
1 parent e0ee6c9013
commit e8422c1c88
6 files changed
+44 -17
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src/asm/lexer.cpp
+21 -10
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@@ -1683,9 +1683,6 @@ static Token yylex_NORMAL() {
case '-': // Either -= or SUB
return oneOrTwo('=', T_(POP_SUBEQ), T_(OP_SUB));
case '*': // Either *=, MUL, or EXP
return oneOrTwo('=', T_(POP_MULEQ), '*', T_(OP_EXP), T_(OP_MUL));
case '/': // Either /=, DIV, or a block comment
if (peek() == '*') {
shiftChar();
@@ -1716,6 +1713,14 @@ static Token yylex_NORMAL() {
}
return Token(T_(OP_LOGICNOT));
case '*': // Either *=, **=, MUL, or EXP
c = peek();
if (c == '*') {
shiftChar();
return oneOrTwo('=', T_(POP_EXPEQ), T_(OP_EXP));
}
return oneOrTwo('=', T_(POP_MULEQ), T_(OP_MUL));
case '<': // Either <<=, LT, LTE, or left shift
if (peek() == '<') {
shiftChar();
@@ -1723,13 +1728,6 @@ static Token yylex_NORMAL() {
}
return oneOrTwo('=', T_(OP_LOGICLE), T_(OP_LOGICLT));
case '>': // Either >>=, GT, GTE, or either kind of right shift
if (peek() == '>') {
shiftChar();
return oneOrTwo('=', T_(POP_SHREQ), '>', T_(OP_USHR), T_(OP_SHR));
}
return oneOrTwo('=', T_(OP_LOGICGE), T_(OP_LOGICGT));
case ':': // Either :, ::, or an anonymous label ref
c = peek();
if (c == '+' || c == '-') {
@@ -1737,6 +1735,19 @@ static Token yylex_NORMAL() {
}
return oneOrTwo(':', T_(DOUBLE_COLON), T_(COLON));
// Handle ambiguous 1-, 2-, 3-, or 4-char tokens
case '>': // Either >>=, >>>=, GT, GTE, or either kind of right shift
if (peek() == '>') {
shiftChar();
if (peek() == '>') {
shiftChar();
return oneOrTwo('=', T_(POP_USHREQ), T_(OP_USHR));
}
return oneOrTwo('=', T_(POP_SHREQ), T_(OP_SHR));
}
return oneOrTwo('=', T_(OP_LOGICGE), T_(OP_LOGICGT));
// Handle numbers
case '0': // Decimal, fixed-point, or base-prefix number