Added single-line comments

dylanrenwick · May 29, 2019 · d3f25c2 · d3f25c2
1 parent 49e1df9
commit d3f25c2
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Showing 3 changed files with 19 additions and 1 deletion.
diff --git a/examples/comment.ns b/examples/comment.ns
@@ -0,0 +1,5 @@
+main(): int {
+	a: int = 3;
+	// This is a comment
+	return a;
+}
diff --git a/examples/tests.json b/examples/tests.json
@@ -99,5 +99,9 @@
     {
         "fileName": "factorial",
         "answer": 120
+    },
+    {
+        "fileName": "comment",
+        "answer": 3
     }
 ]
diff --git a/src/Tokenizer.ts b/src/Tokenizer.ts
@@ -34,17 +34,26 @@ export class Tokenizer {
         let isChar = false;
         let newline = false;
 
-        for (let char of code) {
+        let lineComment = false;
+
+        for (let i = 0; i < code.length; i++) {
+            let char = code[i];
             if (newline) {
                 col = 1;
                 line++;
                 newline = false;
+                if (lineComment) {
+                    curToken = "";
+                    lineComment = false;
+                }
             }
             if (char === "\n") {
                 newline = true;
             }
 
             col++;
+            if (char + code[i + 1] === "//") lineComment = true;
+            if (lineComment) continue;
 
             if (str) {
                 if (char === "\"" && !/\\$/.test(curToken.replace(/\\\\/g, ""))) {