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Use charCodeChecked/codePointChecked throughout scanner

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This commit is contained in:
Ron Buckton
2024-04-29 15:20:12 -04:00
parent cd566bad95
commit 3e0da149cd
4 changed files with 925 additions and 104 deletions
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203
scripts/eslint/tests/bounds-check.test.cjs Normal file
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const { RuleTester } = require("./support/RuleTester.cjs");
const rule = require("../rules/bounds-check.cjs");
const ruleTester = new RuleTester({
parserOptions: {
warnOnUnsupportedTypeScriptVersion: false,
},
parser: require.resolve("@typescript-eslint/parser"),
});
ruleTester.run("bounds-check", rule, {
valid: [
{
filename: "scanner.ts",
code: `codePointChecked(0)`,
},
{
filename: "scanner.ts",
code: `charCodeChecked(0)`,
},
{
filename: "foo.ts",
code: `codePointUnchecked(0)`,
},
{
filename: "foo.ts",
code: `charCodeUnchecked(0)`,
},
{
filename: "scanner.ts",
code: "pos < end && charCodeUnchecked(pos)"
},
{
filename: "scanner.ts",
code: "!(pos >= end) && charCodeUnchecked(pos)"
},
{
filename: "scanner.ts",
code: "pos + 1 < end && charCodeUnchecked(pos)"
},
{
filename: "scanner.ts",
code: "pos >= end || charCodeUnchecked(pos)"
},
{
filename: "scanner.ts",
code: "pos < end ? charCodeUnchecked(pos) : null"
},
{
filename: "scanner.ts",
code: "pos >= end ? null : charCodeUnchecked(pos)"
},
{
filename: "scanner.ts",
code: "if (pos < end) charCodeUnchecked(pos)"
},
{
filename: "scanner.ts",
code: "if (pos < end) {charCodeUnchecked(pos)}"
},
{
filename: "scanner.ts",
code: "if (pos >= end); else charCodeUnchecked(pos)"
},
{
filename: "scanner.ts",
code: "if (pos >= end); else {charCodeUnchecked(pos)}"
},
{
filename: "scanner.ts",
code: "while (pos < end) charCodeUnchecked(pos)"
},
{
filename: "scanner.ts",
code: "while (pos < end) {charCodeUnchecked(pos)}"
},
{
filename: "scanner.ts",
code: "return pos >= 0 && pos < end ? codePointUnchecked(pos) : CharacterCodes.EOF;"
},
{
filename: "scanner.ts",
code: `
if (
pos + 2 < end &&
codePointUnchecked(pos + 1) === CharacterCodes.u &&
codePointUnchecked(pos + 2) === CharacterCodes.openBrace
) {}
`
},
{
filename: "scanner.ts",
code: `
while (pos < end) {
let ch = codePointUnchecked(pos);
}
`
},
{
filename: "scanner.ts",
code: `
while (pos < end && isWhiteSpaceSingleLine(charCodeUnchecked(pos)) && isWhiteSpaceSingleLine(charCodeUnchecked(pos))) {}`
},
],
invalid: [
{
filename: "scanner.ts",
code: `codePointUnchecked(0)`,
errors: [{ messageId: "codePointUncheckedError" }],
},
{
filename: "scanner.ts",
code: `charCodeUnchecked(0)`,
errors: [{ messageId: "charCodeUncheckedError" }],
},
{
filename: "scanner.ts",
code: `pos < end && charCodeUnchecked(pos + 1)`,
errors: [{ messageId: "charCodeUncheckedError" }],
},
{
filename: "scanner.ts",
code: `!(pos < end) && charCodeUnchecked(pos)`,
errors: [{ messageId: "charCodeUncheckedError" }],
},
{
filename: "scanner.ts",
code: `pos < end || charCodeUnchecked(pos)`,
errors: [{ messageId: "charCodeUncheckedError" }],
},
{
filename: "scanner.ts",
code: `pos - 1 < end && charCodeUnchecked(pos)`,
errors: [{ messageId: "charCodeUncheckedError" }],
},
{
filename: "scanner.ts",
code: `pos < end + 1 && charCodeUnchecked(pos)`,
errors: [{ messageId: "charCodeUncheckedError" }],
},
{
filename: "scanner.ts",
code: "pos >= end ? charCodeUnchecked(pos) : null",
errors: [{ messageId: "charCodeUncheckedError" }],
},
{
filename: "scanner.ts",
code: "pos < end ? null : charCodeUnchecked(pos)",
errors: [{ messageId: "charCodeUncheckedError" }],
},
{
filename: "scanner.ts",
code: "if (pos >= end) charCodeUnchecked(pos)",
errors: [{ messageId: "charCodeUncheckedError" }],
},
{
filename: "scanner.ts",
code: "if (pos >= end) {charCodeUnchecked(pos)}",
errors: [{ messageId: "charCodeUncheckedError" }],
},
{
filename: "scanner.ts",
code: "if (pos < end); else charCodeUnchecked(pos)",
errors: [{ messageId: "charCodeUncheckedError" }],
},
{
filename: "scanner.ts",
code: "if (pos < end); else {charCodeUnchecked(pos)}",
errors: [{ messageId: "charCodeUncheckedError" }],
},
{
filename: "scanner.ts",
code: "while (pos >= end) charCodeUnchecked(pos)",
errors: [{ messageId: "charCodeUncheckedError" }],
},
{
filename: "scanner.ts",
code: "while (pos >= end) {charCodeUnchecked(pos)}",
errors: [{ messageId: "charCodeUncheckedError" }],
},
{
filename: "scanner.ts",
code: "pos < end && (pos++ || charCodeUnchecked(pos))",
errors: [{ messageId: "charCodeUncheckedError" }],
},
{
filename: "scanner.ts",
code: "function createScanner() { text.charCodeAt(pos) }",
errors: [{ messageId: "charCodeAtError" }],
},
{
filename: "scanner.ts",
code: String.raw`
if (
isRegularExpression && shouldEmitInvalidEscapeError && escapedValue >= 0xD800 && escapedValue <= 0xDBFF &&
pos + 6 < end && text.substring(pos, pos + 2) === "\\u" && charCodeUnchecked(pos + 2) !== CharacterCodes.openBrace
) {}
`,
errors: [{ messageId: "charCodeUncheckedError" }],
},
],
});