Add tests for labeled break/continue

tests/compiler/labeled-break-continue-errors.json

@@ -0,0 +1,10 @@
+{
+  "stderr": [
+    "TS1116: A 'break' statement can only jump to a label of an enclosing statement",
+    "TS1114: Duplicate label 'duplicate'.",
+    "TS1115: A 'continue' statement can only jump to a label of an enclosing iteration statement.",
+    "TS1115: A 'continue' statement can only jump to a label of an enclosing iteration statement.",
+    "TS1115: A 'continue' statement can only jump to a label of an enclosing iteration statement.",
+    "EOF"
+  ]
+}

tests/compiler/labeled-break-continue-errors.ts

@@ -0,0 +1,24 @@
+{
+    break nonexistent;
+}
+
+duplicate:
+{
+    duplicate: {}
+}
+
+for (let i = 0; i < 3; i++) {
+    continue nonexistent;
+}
+
+labelA:
+{
+    continue labelA;
+}
+
+labelB:
+switch (0) {
+    case 0: continue labelB;
+}
+
+ERROR("EOF")

tests/compiler/labeled-break-continue.json

@@ -0,0 +1 @@
+{}

tests/compiler/labeled-break-continue.ts

@@ -0,0 +1,78 @@
+function tests(): string[] {
+  const results: string[] = [];
+
+  label:
+  for (let i = 0; i < 6; i++) {
+    if (i == 2) {
+      results.push("continue!");
+      continue label;
+    }
+
+    if (i == 4) {
+      results.push("break!");
+      break label;
+    }
+
+    results.push(`first loop ${i}`);
+  }
+
+  sweetch:
+  switch (1) {
+    case 1:
+      for (let i = 0; i < 6; i++) {
+        results.push(`second ${i}`);
+        if (i == 3) break sweetch;
+      }
+      results.push("skipped");
+  }
+
+  escape:
+  {
+    results.push("hi");
+    break escape;
+    results.push("skipped");
+  }
+
+  outer:
+  for (let i = 0; i < 5; i++) {
+    exit:
+    if (i % 2 == 0) {
+      for (let j = 0; j < 4; j++) {
+        if (i == j) continue outer;
+        else if (j > i) break exit;
+
+        results.push(`did ${i} ${j}`);
+      }
+    }
+
+    results.push(`reached end of ${i}`);
+  }
+
+  return results;
+}
+
+const results = tests();
+const expected = [
+  "first loop 0",
+  "first loop 1",
+  "continue!",
+  "first loop 3",
+  "break!",
+  "second 0",
+  "second 1",
+  "second 2",
+  "second 3",
+  "hi",
+  "reached end of 1",
+  "did 2 0",
+  "did 2 1",
+  "reached end of 3",
+  "did 4 0",
+  "did 4 1",
+  "did 4 2",
+  "did 4 3",
+  "reached end of 4"
+];
+
+assert(results.length == expected.length);
+for (let i = 0; i < expected.length; i++) assert(results[i] == expected[i]);

tests/parser/labels.ts

@@ -0,0 +1,26 @@
+labelA:
+{
+  a;
+  b;
+}
+
+labelB:
+for (let i = 0; i < 3; i++) {}
+
+labelC:
+for (const x of y) {}
+
+labelD:
+do {} while (0)
+
+labelE:
+while (0) {}
+
+labelF:
+try {} catch (e) {}
+
+labelG:
+if (0) {} else {}
+
+labelH: // ERROR 1344: "A label is not allowed here."
+let x = 123;

tests/parser/labels.ts.fixture.ts

@@ -0,0 +1,21 @@
+labelA:
+{
+  a;
+  b;
+}
+labelB:
+for (let i = 0; i < 3; i++) {}
+labelC:
+for (const x of y) {}
+labelD:
+do {} while (0);
+labelE:
+while (0) {}
+labelF:
+try {
+} catch (e) {
+}
+labelG:
+  if (0) {} else {}
+let x = 123;
+// ERROR 1344: "A label is not allowed here." in labels.ts(25,1+6)