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Code Issues 48 Projects 5 Releases Wiki Activity

Throw a parsing error when attempting to use anything but a +, * or - as a unary operator

This commit is contained in:
Tristan B. Velloza Kildaire 2022-04-12 13:03:40 +02:00
parent 250d4997e9
commit cc2cdf2c30
1 changed files with 12 additions and 3 deletions
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15
source/tlang/compiler/parsing/core.d
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@ -904,10 +904,19 @@ public final class Parser
/* Check if unary or not (if so no expressions on stack) */
if(!hasExp())
{
Expression rhs = parseExpression();
/* Only `*`, `+` and `-` are valid */
if(operatorType == SymbolType.STAR || operatorType == SymbolType.ADD || operatorType == SymbolType.SUB)
{
/* Parse the expression following the unary operator */
Expression rhs = parseExpression();
/* Create UnaryExpression */
opExp = new UnaryOperatorExpression(operatorType, rhs);
/* Create UnaryExpression comprised of the operator and the right-hand side expression */
opExp = new UnaryOperatorExpression(operatorType, rhs);
}
else
{
expect("Expected *, + or - as unary operators but got "~to!(string)(operatorType));
}
}
/* If has, then binary */
else