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JoshuaKGoldbergJoshuaKGoldberg
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I think it's going to need a consistent variable to loop over
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‎src/testRunner/unittests/incrementalParser.ts

+154-168
Original file line numberDiff line numberDiff line change
@@ -832,176 +832,162 @@ module m3 { }\
832832
insertCode(source, index, "Fo");
833833
});
834834

835-
describe("comment directives", () => {
836-
const tsIgnoreComment = "@ts-ignore";
837-
const textWithIgnoreComment = `const x = 10;
838-
function foo() {
839-
// @ts-ignore
840-
let y: string = x;
841-
return y;
842-
}
843-
function bar() {
844-
// @ts-ignore
845-
let z : string = x;
846-
return z;
847-
}
848-
function bar2() {
849-
// @ts-ignore
850-
let z : string = x;
851-
return z;
852-
}
853-
function bar3() {
854-
/* @ts-ignore */
855-
let z : string = x;
856-
return z;
857-
}
858-
function bar4() {
859-
/*
860-
@ts-ignore */
861-
let z : string = x;
862-
return z;
863-
}
864-
foo();
865-
bar();
866-
bar3();
867-
bar4();
868-
bar5()`;
869-
verifyScenario("when deleting ts-ignore comment", verifyDelete);
870-
verifyScenario("when inserting ts-ignore comment", verifyInsert);
871-
verifyScenario("when changing ts-ignore comment to blah", verifyChangeToBlah);
872-
verifyScenario("when changing blah comment to ts-ignore", verifyChangeBackToDirective);
873-
verifyScenario("when deleting blah comment", verifyDeletingBlah);
874-
verifyScenario("when changing text that adds another comment", verifyChangeDirectiveType);
875-
verifyScenario("when changing text that keeps the comment but adds more nodes", verifyReuseChange);
876-
877-
function verifyCommentDirectives(oldText: IScriptSnapshot, newTextAndChange: { text: IScriptSnapshot; textChangeRange: TextChangeRange; }) {
878-
const { incrementalNewTree, newTree } = compareTrees(oldText, newTextAndChange.text, newTextAndChange.textChangeRange, -1);
879-
assert.deepEqual(incrementalNewTree.commentDirectives, newTree.commentDirectives);
880-
}
881-
882-
function verifyScenario(scenario: string, verifyChange: (atIndex: number, singleIgnore?: true) => void) {
883-
it(`${scenario} - 0`, () => {
884-
verifyChange(0);
885-
});
886-
it(`${scenario} - 1`, () => {
887-
verifyChange(1);
888-
});
889-
it(`${scenario} - 2`, () => {
890-
verifyChange(2);
891-
});
892-
it(`${scenario} - 3`, () => {
893-
verifyChange(3);
894-
});
895-
it(`${scenario} - 4`, () => {
896-
verifyChange(4);
897-
});
898-
it(`${scenario} - with single ts-ignore`, () => {
899-
verifyChange(0, /*singleIgnore*/ true);
900-
});
901-
}
902-
903-
function getIndexOfTsIgnoreComment(atIndex: number) {
904-
let index = 0;
905-
for (let i = 0; i <= atIndex; i++) {
906-
index = textWithIgnoreComment.indexOf(tsIgnoreComment, index);
835+
for (const tsIgnoreComment of [
836+
"// @ts-ignore",
837+
"/* @ts-ignore */",
838+
"/*\n @ts-ignore */"
839+
]) {
840+
describe(`${tsIgnoreComment} comment directives`, () => {
841+
const textWithIgnoreComment = `const x = 10;
842+
function foo() {
843+
${tsIgnoreComment}
844+
let y: string = x;
845+
return y;
846+
}
847+
function bar() {
848+
${tsIgnoreComment}
849+
let z : string = x;
850+
return z;
851+
}
852+
function bar3() {
853+
${tsIgnoreComment}
854+
let z : string = x;
855+
return z;
856+
}
857+
foo();
858+
bar();
859+
bar3();`;
860+
verifyScenario("when deleting ts-ignore comment", verifyDelete);
861+
verifyScenario("when inserting ts-ignore comment", verifyInsert);
862+
verifyScenario("when changing ts-ignore comment to blah", verifyChangeToBlah);
863+
verifyScenario("when changing blah comment to ts-ignore", verifyChangeBackToDirective);
864+
verifyScenario("when deleting blah comment", verifyDeletingBlah);
865+
verifyScenario("when changing text that adds another comment", verifyChangeDirectiveType);
866+
verifyScenario("when changing text that keeps the comment but adds more nodes", verifyReuseChange);
867+
868+
function verifyCommentDirectives(oldText: IScriptSnapshot, newTextAndChange: { text: IScriptSnapshot; textChangeRange: TextChangeRange; }) {
869+
const { incrementalNewTree, newTree } = compareTrees(oldText, newTextAndChange.text, newTextAndChange.textChangeRange, -1);
870+
assert.deepEqual(incrementalNewTree.commentDirectives, newTree.commentDirectives);
907871
}
908-
return index;
909-
}
910-
911-
function textWithIgnoreCommentFrom(text: string, singleIgnore: true | undefined) {
912-
if (!singleIgnore) return text;
913-
const splits = text.split(tsIgnoreComment);
914-
if (splits.length > 2) {
915-
const tail = splits[splits.length - 2] + splits[splits.length - 1];
916-
splits.length = splits.length - 2;
917-
return splits.join(tsIgnoreComment) + tail;
872+
873+
function verifyScenario(scenario: string, verifyChange: (atIndex: number, singleIgnore?: true) => void) {
874+
it(`${scenario} - 0`, () => {
875+
verifyChange(0);
876+
});
877+
it(`${scenario} - 1`, () => {
878+
verifyChange(1);
879+
});
880+
it(`${scenario} - 2`, () => {
881+
verifyChange(2);
882+
});
883+
it(`${scenario} - with single ts-ignore`, () => {
884+
verifyChange(0, /*singleIgnore*/ true);
885+
});
918886
}
919-
else {
920-
return splits.join(tsIgnoreComment);
887+
888+
function getIndexOfTsIgnoreComment(atIndex: number) {
889+
let index = 0;
890+
for (let i = 0; i <= atIndex; i++) {
891+
index = textWithIgnoreComment.indexOf(tsIgnoreComment, index);
892+
}
893+
return index;
921894
}
922-
}
923-
924-
function verifyDelete(atIndex: number, singleIgnore?: true) {
925-
const index = getIndexOfTsIgnoreComment(atIndex);
926-
const oldText = ScriptSnapshot.fromString(textWithIgnoreCommentFrom(textWithIgnoreComment, singleIgnore));
927-
const newTextAndChange = withDelete(oldText, index, tsIgnoreComment.length);
928-
verifyCommentDirectives(oldText, newTextAndChange);
929-
}
930-
931-
function verifyInsert(atIndex: number, singleIgnore?: true) {
932-
const index = getIndexOfTsIgnoreComment(atIndex);
933-
const source = textWithIgnoreCommentFrom(textWithIgnoreComment.slice(0, index) + textWithIgnoreComment.slice(index + tsIgnoreComment.length), singleIgnore);
934-
const oldText = ScriptSnapshot.fromString(source);
935-
const newTextAndChange = withInsert(oldText, index, tsIgnoreComment);
936-
verifyCommentDirectives(oldText, newTextAndChange);
937-
}
938-
939-
function verifyChangeToBlah(atIndex: number, singleIgnore?: true) {
940-
const index = getIndexOfTsIgnoreComment(atIndex) + "// ".length;
941-
const oldText = ScriptSnapshot.fromString(textWithIgnoreCommentFrom(textWithIgnoreComment, singleIgnore));
942-
const newTextAndChange = withChange(oldText, index, 1, "blah ");
943-
verifyCommentDirectives(oldText, newTextAndChange);
944-
}
945-
946-
function verifyChangeBackToDirective(atIndex: number, singleIgnore?: true) {
947-
const index = getIndexOfTsIgnoreComment(atIndex) + "// ".length;
948-
const source = textWithIgnoreCommentFrom(textWithIgnoreComment.slice(0, index) + "blah " + textWithIgnoreComment.slice(index + 1), singleIgnore);
949-
const oldText = ScriptSnapshot.fromString(source);
950-
const newTextAndChange = withChange(oldText, index, "blah ".length, "@");
951-
verifyCommentDirectives(oldText, newTextAndChange);
952-
}
953-
954-
function verifyDeletingBlah(atIndex: number, singleIgnore?: true) {
955-
const tsIgnoreIndex = getIndexOfTsIgnoreComment(atIndex);
956-
const index = tsIgnoreIndex + "// ".length;
957-
const source = textWithIgnoreCommentFrom(textWithIgnoreComment.slice(0, index) + "blah " + textWithIgnoreComment.slice(index + 1), singleIgnore);
958-
const oldText = ScriptSnapshot.fromString(source);
959-
const newTextAndChange = withDelete(oldText, tsIgnoreIndex, tsIgnoreComment.length + "blah".length);
960-
verifyCommentDirectives(oldText, newTextAndChange);
961-
}
962-
963-
function verifyChangeDirectiveType(atIndex: number, singleIgnore?: true) {
964-
const index = getIndexOfTsIgnoreComment(atIndex) + "// @ts-".length;
965-
const oldText = ScriptSnapshot.fromString(textWithIgnoreCommentFrom(textWithIgnoreComment, singleIgnore));
966-
const newTextAndChange = withChange(oldText, index, "ignore".length, "expect-error");
967-
verifyCommentDirectives(oldText, newTextAndChange);
968-
}
969-
970-
function verifyReuseChange(atIndex: number, singleIgnore?: true) {
971-
const source = `const x = 10;
972-
function foo1() {
973-
const x1 = 10;
974-
// @ts-ignore
975-
let y0: string = x;
976-
let y1: string = x;
977-
return y1;
978-
}
979-
function foo2() {
980-
const x2 = 10;
981-
// @ts-ignore
982-
let y0: string = x;
983-
let y2: string = x;
984-
return y2;
985-
}
986-
function foo3() {
987-
const x3 = 10;
988-
// @ts-ignore
989-
let y0: string = x;
990-
let y3: string = x;
991-
return y3;
992-
}
993-
foo1();
994-
foo2();
995-
foo3();`;
996-
const oldText = ScriptSnapshot.fromString(textWithIgnoreCommentFrom(source, singleIgnore));
997-
const start = source.indexOf(`const x${atIndex + 1}`);
998-
const letStr = `let y${atIndex + 1}: string = x;`;
999-
const end = source.indexOf(letStr) + letStr.length;
1000-
const oldSubStr = source.slice(start, end);
1001-
const newText = oldSubStr.replace(letStr, `let yn : string = x;`);
1002-
const newTextAndChange = withChange(oldText, start, end - start, newText);
1003-
verifyCommentDirectives(oldText, newTextAndChange);
1004-
}
1005-
});
895+
896+
function textWithIgnoreCommentFrom(text: string, singleIgnore: true | undefined) {
897+
if (!singleIgnore) return text;
898+
const splits = text.split(tsIgnoreComment);
899+
if (splits.length > 2) {
900+
const tail = splits[splits.length - 2] + splits[splits.length - 1];
901+
splits.length = splits.length - 2;
902+
return splits.join(tsIgnoreComment) + tail;
903+
}
904+
else {
905+
return splits.join(tsIgnoreComment);
906+
}
907+
}
908+
909+
function verifyDelete(atIndex: number, singleIgnore?: true) {
910+
const index = getIndexOfTsIgnoreComment(atIndex);
911+
const oldText = ScriptSnapshot.fromString(textWithIgnoreCommentFrom(textWithIgnoreComment, singleIgnore));
912+
const newTextAndChange = withDelete(oldText, index, tsIgnoreComment.length);
913+
verifyCommentDirectives(oldText, newTextAndChange);
914+
}
915+
916+
function verifyInsert(atIndex: number, singleIgnore?: true) {
917+
const index = getIndexOfTsIgnoreComment(atIndex);
918+
const source = textWithIgnoreCommentFrom(textWithIgnoreComment.slice(0, index) + textWithIgnoreComment.slice(index + tsIgnoreComment.length), singleIgnore);
919+
const oldText = ScriptSnapshot.fromString(source);
920+
const newTextAndChange = withInsert(oldText, index, tsIgnoreComment);
921+
verifyCommentDirectives(oldText, newTextAndChange);
922+
}
923+
924+
function verifyChangeToBlah(atIndex: number, singleIgnore?: true) {
925+
const index = getIndexOfTsIgnoreComment(atIndex) + "// ".length;
926+
const oldText = ScriptSnapshot.fromString(textWithIgnoreCommentFrom(textWithIgnoreComment, singleIgnore));
927+
const newTextAndChange = withChange(oldText, index, 1, "blah ");
928+
verifyCommentDirectives(oldText, newTextAndChange);
929+
}
930+
931+
function verifyChangeBackToDirective(atIndex: number, singleIgnore?: true) {
932+
const index = getIndexOfTsIgnoreComment(atIndex) + "// ".length;
933+
const source = textWithIgnoreCommentFrom(textWithIgnoreComment.slice(0, index) + "blah " + textWithIgnoreComment.slice(index + 1), singleIgnore);
934+
const oldText = ScriptSnapshot.fromString(source);
935+
const newTextAndChange = withChange(oldText, index, "blah ".length, "@");
936+
verifyCommentDirectives(oldText, newTextAndChange);
937+
}
938+
939+
function verifyDeletingBlah(atIndex: number, singleIgnore?: true) {
940+
const tsIgnoreIndex = getIndexOfTsIgnoreComment(atIndex);
941+
const index = tsIgnoreIndex + "// ".length;
942+
const source = textWithIgnoreCommentFrom(textWithIgnoreComment.slice(0, index) + "blah " + textWithIgnoreComment.slice(index + 1), singleIgnore);
943+
const oldText = ScriptSnapshot.fromString(source);
944+
const newTextAndChange = withDelete(oldText, tsIgnoreIndex, tsIgnoreComment.length + "blah".length);
945+
verifyCommentDirectives(oldText, newTextAndChange);
946+
}
947+
948+
function verifyChangeDirectiveType(atIndex: number, singleIgnore?: true) {
949+
const index = getIndexOfTsIgnoreComment(atIndex) + "// @ts-".length;
950+
const oldText = ScriptSnapshot.fromString(textWithIgnoreCommentFrom(textWithIgnoreComment, singleIgnore));
951+
const newTextAndChange = withChange(oldText, index, "ignore".length, "expect-error");
952+
verifyCommentDirectives(oldText, newTextAndChange);
953+
}
954+
955+
function verifyReuseChange(atIndex: number, singleIgnore?: true) {
956+
const source = `const x = 10;
957+
function foo1() {
958+
const x1 = 10;
959+
// @ts-ignore
960+
let y0: string = x;
961+
let y1: string = x;
962+
return y1;
963+
}
964+
function foo2() {
965+
const x2 = 10;
966+
// @ts-ignore
967+
let y0: string = x;
968+
let y2: string = x;
969+
return y2;
970+
}
971+
function foo3() {
972+
const x3 = 10;
973+
// @ts-ignore
974+
let y0: string = x;
975+
let y3: string = x;
976+
return y3;
977+
}
978+
foo1();
979+
foo2();
980+
foo3();`;
981+
const oldText = ScriptSnapshot.fromString(textWithIgnoreCommentFrom(source, singleIgnore));
982+
const start = source.indexOf(`const x${atIndex + 1}`);
983+
const letStr = `let y${atIndex + 1}: string = x;`;
984+
const end = source.indexOf(letStr) + letStr.length;
985+
const oldSubStr = source.slice(start, end);
986+
const newText = oldSubStr.replace(letStr, `let yn : string = x;`);
987+
const newTextAndChange = withChange(oldText, start, end - start, newText);
988+
verifyCommentDirectives(oldText, newTextAndChange);
989+
}
990+
});
991+
}
1006992
});
1007993
}

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