From c6e575eaa6e9271f35137e71d9fff54fbd9cf5ca Mon Sep 17 00:00:00 2001
From: c+1
Date: Mon, 15 May 2023 17:25:01 -0400
Subject: my favorieveh part of parsisud is when dr parser persius says "its
 parsn time!" and just abifhfuckidngly PARSES all over those guys

---
 src/parser.c | 43 +++++++++++++++++++++++++++++++------------
 1 file changed, 31 insertions(+), 12 deletions(-)

(limited to 'src')

diff --git a/src/parser.c b/src/parser.c
index 2cc0d39..4da693b 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -1,12 +1,13 @@
-#include "include/parser.h"
-#include "include/token.h"
-
-
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
 
 
+#include "include/log.h"
+#include "include/parser.h"
+#include "include/token.h"
+
+
 // initialize a parser
 parser_t* parser_init(lexer_t* lexer) {
    parser_t* parser = calloc(1, sizeof(struct PARSER_STRUC));
@@ -22,9 +23,7 @@ void parser_check_expect(parser_t* parser, int token_type) {
    if (parser->token->type == token_type) {
       parser->token = lexer_get_next_token(parser->lexer);
    } else {
-      fprintf(stderr, "[ERRR] [%d]\n\tUnexpected token '%s' with type '%d'.", 
-      parser->lexer->i, parser->token->value, parser->token->type);
-
+      log_err("Unexpected token");
       exit(1);
    }
 }
@@ -56,6 +55,7 @@ tree_t* parser_parse_chunk(parser_t* parser) {
    }
 }
 
+// parse a list of chunks
 tree_t* parser_parse_chunks(parser_t* parser) {
    tree_t* subtree = tree_init(TREE_SUBTREE);
    subtree->data.subtree.val = calloc(1, sizeof(struct TREE_STRUC));
@@ -89,10 +89,23 @@ tree_t* parser_parse_fn_call(parser_t* parser) {};
 
 tree_t* parser_parse_fn_def(parser_t* parser) {};
 
-tree_t* parser_parse_var(parser_t* parser) {};
+tree_t* parser_parse_var(parser_t* parser) {
+   char* token_val = parser->token->value;
+
+   parser_check_expect(parser, TOKEN_KEYWORD);  // var name or fn name
+   
+   // check if function
+   if (parser->token->type == TOKEN_FN_APPLY) {
+      return parser_parse_fn_call(parser);
+   }
+
+   tree_t* var = tree_init(TREE_VAR);
+   var->data.var.name = token_val;
+   return var;
+};
 
 tree_t* parser_parse_var_def(parser_t* parser) {
-   int var_is_const = 0;
+   int var_is_const;
    parser_check_expect(parser, TOKEN_KEYWORD);        // let
    char* var_name = parser->token->value;             // set variable name
    parser_check_expect(parser, TOKEN_KEYWORD);        // expect variable name & advance
@@ -101,13 +114,14 @@ tree_t* parser_parse_var_def(parser_t* parser) {
       var_is_const = 1;
       parser_check_expect(parser, TOKEN_DEFINE_CONST);
    } else {
+      var_is_const = 0;
       parser_check_expect(parser, TOKEN_DEFINE_MUT);
    }
 
    tree_t* var_val = parser_parse_expr(parser);       // set the value
-   tree_t* var_def = tree_init(TREE_VAR_DEF);         // create the var
+   tree_t* var_def = tree_init(TREE_VAR_DEF);         // create the var, as a subtree
 
-   var_def->data.var_def.name = var_name;
+   var_def->data.var_def.name = var_name;              
    var_def->data.var_def.val = var_val;
    var_def->data.var_def.is_const = &var_is_const;
 
@@ -122,7 +136,12 @@ tree_t* parser_parse_keyword(parser_t* parser) {
    } else if (strcmp(parser->token->value, "fn")) {
       return parser_parse_fn_def(parser);
    } else {
-      return parser_parse_var(parser);
+      return parser_parse_var(parser);    // assume attempting to call
+                                          // variable/function; 
+                                          // TODO: differentiate b/w the
+                                          // two on call; may be a syntax
+                                          // change :P just to make the
+                                          // interpreter easier
    }
 }
 
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