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parser: lambda function literals

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This commit is contained in:
Blendi
2026-04-28 20:29:18 +02:00
parent 3126d0ccd7
commit 86973c92fa
3 changed files with 32 additions and 2 deletions
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2
src/main.c
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@@ -33,7 +33,7 @@ void print_node(noomP_Node* node, noom_uint_t depth) {
int main(int argc, char** argv) {
// uhh uhhh uhhhhh
const char* code = "local function a(a, ...) local a = 2 end";
const char* code = "local a = function(a,b,c,...) print('hi'); end";
noom_uint_t pos = 0;
printf("LEX OUTPUT:\n");

26
src/parser.c
View File

@@ -41,6 +41,8 @@ const char *noomP_formatNodeType(noomP_NodeType node_type) {
return "call";
case NOOMP_NODE_METHODCALL:
return "method call";
case NOOMP_NODE_LAMBDAFUNCTIONLITERAL:
return "lambda function literal";
case NOOMP_NODE_FUNCTIONDECLARATION:
return "function declaration";
case NOOMP_NODE_LOCALFUNCTIONDECLARATION:
@@ -344,6 +346,30 @@ noomP_Node* noomP_parseRawExpression(noomP_Parser* parser) {
litNode->source_offset = token.offset;
return litNode;
} else if (noom_streql(parser->code + token.offset, token.length, "function", 8)) {
noomP_skip(parser, &token);
noomP_Node* funcNode = noomP_allocNode(parser);
if (funcNode == 0) return 0;
funcNode->type = NOOMP_NODE_LAMBDAFUNCTIONLITERAL;
funcNode->source_offset = token.offset;
noomP_Node* params = noomP_parseFunctionParameters(parser);
if (params == 0) return 0;
noomP_addSubnode(funcNode, params);
noomP_Node* block = noomP_parseBlock(parser);
if (block == 0) return 0;
noomP_addSubnode(funcNode, block);
noomP_peek(parser, &token);
if (token.type != NOOML_TOKEN_KEYWORD || !noom_streql(parser->code + token.offset, token.length, "end", 3)) {
return 0;
}
noomP_skip(parser, &token);
return funcNode;
}
} else if (token.type == NOOML_TOKEN_SYMBOL) {
if (noom_streql(parser->code + token.offset, token.length, "(", 1)) { // parenthesized

6
src/parser.h
View File

@@ -29,6 +29,7 @@ typedef enum noomP_NodeType {
NOOMP_NODE_CALL,
NOOMP_NODE_METHODCALL,
NOOMP_NODE_LAMBDAFUNCTIONLITERAL,
NOOMP_NODE_FUNCTIONDECLARATION,
NOOMP_NODE_LOCALFUNCTIONDECLARATION,
NOOMP_NODE_FUNCTIONPARAMETERS,
@@ -76,8 +77,11 @@ void noomP_skip(noomP_Parser* parser, noomL_Token* token);
noomP_Node* noomP_allocNode(noomP_Parser* parser);
noomP_Node* noomP_parseStatement(noomP_Parser* parser);
noomP_Node* noomP_parseFunctionParameters(noomP_Parser* parser);
noomP_Node* noomP_parseBlock(noomP_Parser* parser);
noomP_Node* noomP_parseExpression(noomP_Parser* parser);
noomP_Node* noomP_parseStatement(noomP_Parser* parser);
int noomP_parse(const char* code, const char* filename, noom_LuaVersion version, noomP_Node** outpointer, noomP_Node** last_node);