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Function calls, with args and single returns are working

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This commit is contained in:
Kayne Ruse
2022-08-26 01:48:26 +01:00
parent 041fe99e01
commit a4f1e048e9
11 changed files with 316 additions and 83 deletions
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47
source/parser.c
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@@ -627,6 +627,51 @@ static Opcode decrementInfix(Parser* parser, Node** nodeHandle) {
return OP_EOF;
}
static Opcode fnCall(Parser* parser, Node** nodeHandle) {
advance(parser);
//binary() is an infix rule - so only get the RHS of the operator
switch(parser->previous.type) {
//arithmetic
case TOKEN_PAREN_LEFT: {
Node* arguments = NULL;
emitNodeFnCollection(&arguments);
//if there's arguments
if (!match(parser, TOKEN_PAREN_RIGHT)) {
//read each argument
do {
//emit the node to the argument list (grow the node if needed)
if (arguments->fnCollection.capacity < arguments->fnCollection.count + 1) {
int oldCapacity = arguments->fnCollection.capacity;
arguments->fnCollection.capacity = GROW_CAPACITY(oldCapacity);
arguments->fnCollection.nodes = GROW_ARRAY(Node, arguments->fnCollection.nodes, oldCapacity, arguments->fnCollection.capacity);
}
Node* node = NULL;
parsePrecedence(parser, &node, PREC_TERNARY);
arguments->fnCollection.nodes[arguments->fnCollection.count++] = *node;
} while(match(parser, TOKEN_COMMA));
consume(parser, TOKEN_PAREN_RIGHT, "Expected ')' at end of argument list");
}
//emit the call
emitFnCall(nodeHandle, arguments);
return OP_FN_CALL;
}
break;
default:
error(parser, parser->previous, "Unexpected token passed to function call precedence rule");
return OP_EOF;
}
return OP_EOF;
}
ParseRule parseRules[] = { //must match the token types
//types
{atomic, NULL, PREC_PRIMARY},// TOKEN_NULL,
@@ -685,7 +730,7 @@ ParseRule parseRules[] = { //must match the token types
{NULL, binary, PREC_ASSIGNMENT},// TOKEN_ASSIGN,
//logical operators
{grouping, NULL, PREC_CALL},// TOKEN_PAREN_LEFT,
{grouping, fnCall, PREC_CALL},// TOKEN_PAREN_LEFT,
{NULL, NULL, PREC_NONE},// TOKEN_PAREN_RIGHT,
{compound, NULL, PREC_CALL},// TOKEN_BRACKET_LEFT,
{NULL, NULL, PREC_NONE},// TOKEN_BRACKET_RIGHT,