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more intuitive left shift and right shift operators

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Before:
 * << is left shift, not allowed to shift 1 bits out
 * <<% is left shift, allowed to shift 1 bits out
 * >> is right shift, allowed to shift 1 bits out

After:
 * << is left shift, allowed to shift 1 bits out
 * >> is right shift, allowed to shift 1 bits out
 * @shlExact is left shift, not allowed to shift 1 bits out
 * @shrExact is right shift, not allowed to shift 1 bits out

Closes #413
This commit is contained in:
Andrew Kelley
2017-08-09 10:09:38 -04:00
parent 54675b060a
commit 35d3444e27
28 changed files with 274 additions and 128 deletions
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2
src/parser.cpp
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@@ -1131,7 +1131,6 @@ static AstNode *ast_parse_add_expr(ParseContext *pc, size_t *token_index, bool m
static BinOpType tok_to_bit_shift_op(Token *token) {
switch (token->id) {
case TokenIdBitShiftLeft: return BinOpTypeBitShiftLeft;
case TokenIdBitShiftLeftPercent: return BinOpTypeBitShiftLeftWrap;
case TokenIdBitShiftRight: return BinOpTypeBitShiftRight;
default: return BinOpTypeInvalid;
}
@@ -1909,7 +1908,6 @@ static BinOpType tok_to_ass_op(Token *token) {
case TokenIdMinusEq: return BinOpTypeAssignMinus;
case TokenIdMinusPercentEq: return BinOpTypeAssignMinusWrap;
case TokenIdBitShiftLeftEq: return BinOpTypeAssignBitShiftLeft;
case TokenIdBitShiftLeftPercentEq: return BinOpTypeAssignBitShiftLeftWrap;
case TokenIdBitShiftRightEq: return BinOpTypeAssignBitShiftRight;
case TokenIdBitAndEq: return BinOpTypeAssignBitAnd;
case TokenIdBitXorEq: return BinOpTypeAssignBitXor;