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Increment and decrement operators work

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This commit is contained in:
Kayne Ruse
2022-08-21 00:23:01 +01:00
parent c64d451287
commit b385b461e0
8 changed files with 185 additions and 26 deletions
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55
source/parser.c
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@@ -541,6 +541,50 @@ static Opcode castingInfix(Parser* parser, Node** nodeHandle) {
return OP_TYPE_CAST;
}
static Opcode incrementPrefix(Parser* parser, Node** nodeHandle) {
advance(parser);
Node* node = NULL;
identifier(parser, &node);
emiteNodePrefixIncrement(nodeHandle, node->atomic.literal, 1);
return OP_EOF;
}
static Opcode incrementInfix(Parser* parser, Node** nodeHandle) {
Node* node = NULL;
identifier(parser, &node);
advance(parser);
emiteNodePostfixIncrement(nodeHandle, node->atomic.literal, 1);
return OP_EOF;
}
static Opcode decrementPrefix(Parser* parser, Node** nodeHandle) {
advance(parser);
Node* node = NULL;
identifier(parser, &node);
emiteNodePrefixIncrement(nodeHandle, node->atomic.literal, -1);
return OP_EOF;
}
static Opcode decrementInfix(Parser* parser, Node** nodeHandle) {
Node* node = NULL;
identifier(parser, &node);
advance(parser);
emiteNodePostfixIncrement(nodeHandle, node->atomic.literal, -1);
return OP_EOF;
}
ParseRule parseRules[] = { //must match the token types
//types
{atomic, NULL, PREC_PRIMARY},// TOKEN_NULL,
@@ -594,8 +638,8 @@ ParseRule parseRules[] = { //must match the token types
{NULL, NULL, PREC_NONE},// TOKEN_MULTIPLY_ASSIGN,
{NULL, NULL, PREC_NONE},// TOKEN_DIVIDE_ASSIGN,
{NULL, NULL, PREC_NONE},// TOKEN_MODULO_ASSIGN,
{NULL, NULL, PREC_NONE},// TOKEN_PLUS_PLUS,
{NULL, NULL, PREC_NONE},// TOKEN_MINUS_MINUS,
{incrementPrefix, incrementInfix, PREC_CALL},// TOKEN_PLUS_PLUS,
{decrementPrefix, decrementInfix, PREC_CALL},// TOKEN_MINUS_MINUS,
{NULL, binary, PREC_ASSIGNMENT},// TOKEN_ASSIGN,
//logical operators
@@ -841,6 +885,13 @@ static void parsePrecedence(Parser* parser, Node** nodeHandle, PrecedenceRule ru
Node* rhsNode = NULL;
const Opcode opcode = infixRule(parser, &rhsNode); //NOTE: infix rule must advance the parser
if (opcode == OP_EOF) {
freeNode(*nodeHandle);
*nodeHandle = rhsNode;
return; //we're done here
}
emitNodeBinary(nodeHandle, rhsNode, opcode);
if (!calcStaticBinaryArithmetic(parser, nodeHandle)) {