From ee1a5de91c875fb66724dc21c02333bfebe2a812 Mon Sep 17 00:00:00 2001
From: Bad Diode <bd@badd10de.dev>
Date: Tue, 1 Feb 2022 18:36:52 +0100
Subject: Add new syntax to lexer and prepare refactor

---
 src/errors.c | 62 +++++++++++++++++++++++++++++-------------------------------
 1 file changed, 30 insertions(+), 32 deletions(-)

(limited to 'src/errors.c')

diff --git a/src/errors.c b/src/errors.c
index 11348fd..efc834f 100644
--- a/src/errors.c
+++ b/src/errors.c
@@ -3,44 +3,42 @@
 static const char* error_msgs[] = {
     [ERR_UNKNOWN]          = "error: something unexpected happened",
     [ERR_UNMATCHED_STRING] = "error: unmatched string delimiter",
-    [ERR_UNBALANCED_PAREN] = "error: unbalanced parentheses",
-    [ERR_NOT_IMPLEMENTED]  = "error: not implemented",
-    [ERR_EOF_REACHED]      = "error: EOF reached",
-    [ERR_UNKNOWN_TOKEN]    = "error: unknown token",
-    [ERR_UNKNOWN_OBJ_TYPE] = "error: can't eval unknown object type",
-    [ERR_NOT_A_SYMBOL]     = "error: object is not a symbol",
-    [ERR_SYMBOL_NOT_FOUND] = "error: symbol not found",
-    [ERR_NOT_CALLABLE]     = "error: not callable",
-    [ERR_NOT_ENOUGH_ARGS]  = "error: not enough arguments",
-    [ERR_TOO_MANY_ARGS]    = "error: too many arguments",
-    [ERR_WRONG_ARG_TYPE]   = "error: wrong argument type",
-    [ERR_DIVISION_BY_ZERO] = "error: division by zero",
-    [ERR_AMBIGUOUS_PARAMS] = "error: ambiguous parameter names",
+    [ERR_UNKNOWN_TOK_TYPE] = "error: unknown token type",
+    [ERR_MALFORMED_NUMBER] = "error: malformed number token",
 };
 
+static Error current_error = {.value = ERR_OK};
+
 void
-error_push(Errors *errors, Error error) {
-    if (errors->n < ERR_MAX_NUMBER) {
-        errors->errors[errors->n++] = error;
+push_error(ErrorType type, ErrorValue value, size_t line, size_t col) {
+    if (has_errors()) {
+        return;
     }
+    current_error.type = type;
+    current_error.value = value;
+    current_error.line = line;
+    current_error.col = col;
+}
+
+bool
+has_errors(void) {
+    return current_error.value != ERR_OK;
 }
 
 void
-report_errors(Errors *errors, const char *file_name) {
-    for (size_t i = 0; i < errors->n; i++) {
-        Error err = errors->errors[i];
-        fprintf(stderr, "%s", file_name);
-        if (err.line != 0) {
-            fprintf(stderr, ":%ld:%ld", err.line, err.col);
-        }
-        switch (err.type) {
-            case ERR_TYPE_LEXER:    { fprintf(stderr, ": [lexer]");    } break;
-            case ERR_TYPE_COMPILER: { fprintf(stderr, ": [compiler]"); } break;
-            case ERR_TYPE_RUNTIME:  { fprintf(stderr, ": [runtime]");  } break;
-            case ERR_TYPE_PARSER:   { fprintf(stderr, ": [parser]");   } break;
-            default: break;
-        }
-        fprintf(stderr, " %s\n", error_msgs[err.value]);
+check_errors(const char *file_name) {
+    if (!has_errors()) {
+        return;
+    }
+    fprintf(stderr, "%s", file_name);
+    if (current_error.line != 0) {
+        fprintf(stderr, ":%ld:%ld", current_error.line, current_error.col);
+    }
+    switch (current_error.type) {
+        case ERR_TYPE_LEXER:    { fprintf(stderr, ": [lexer] ");    } break;
+        case ERR_TYPE_PARSER:   { fprintf(stderr, ": [parser] ");   } break;
+        default: break;
     }
-    errors->n = 0;
+    fprintf(stderr, "%s\n", error_msgs[current_error.value]);
+    exit(EXIT_FAILURE);
 }
-- 
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