quickjs/v8.js

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import * as std from "std"
import * as os from "os"
argv0 = realpath(argv0)
const tweak = realpath("v8-tweak.js")
const dir = "test262/implementation-contributed/v8/mjsunit"
const exclude = [
"arguments-indirect.js", // implementation-defined
"array-concat.js", // slow
"array-isarray.js", // unstable output due to stack overflow
"array-join.js", // unstable output due to stack overflow
"ascii-regexp-subject.js", // slow
"asm-directive.js", // v8 specific
"disallow-codegen-from-strings.js", // --disallow-code-generation-from-strings
"cyclic-array-to-string.js", // unstable output due to stack overflow
"error-tostring.js", // unstable output due to stack overflow
"invalid-lhs.js", // v8 expects ReferenceError but ECMA says SyntaxError
"regexp.js", // invalid, legitimate early SyntaxError
"regexp-capture-3.js", // slow
"regexp-cache-replace.js", // deprecated RegExp.$1 etc.
"regexp-indexof.js", // deprecated RegExp.lastMatch etc.
"regexp-static.js", // deprecated RegExp static properties.
"regexp-modifiers-autogenerated-i18n.js", // invalid group
"regexp-modifiers-autogenerated.js", // invalid group
"regexp-modifiers-dotall.js", // invalid group
"regexp-modifiers-i18n.js", // invalid group
"regexp-modifiers.js", // invalid group
"regexp-override-symbol-match-all.js", // missing g flag
"serialize-embedded-error.js", // parseInt() = 0;
"string-replace.js", // unstable output
"string-match.js", // deprecated RegExp.$1 etc.
"string-slices-regexp.js", // deprecated RegExp.$1 etc.
"omit-default-ctors-array-iterator.js",
"mjsunit.js",
"mjsunit-assertion-error.js",
"mjsunit-assert-equals.js",
"mjsunit_suppressions.js",
"verify-assert-false.js", // self check
"verify-check-false.js", // self check
"clone-ic-regression-crbug-1466315.js", // spurious output
]
let files = scriptArgs.slice(1) // run only these tests
if (files.length === 0) files = os.readdir(dir)[0].sort()
for (const file of files) {
if (!file.endsWith(".js")) continue
if (exclude.includes(file)) continue
const source = std.loadFile(dir + "/" + file)
if (/^(im|ex)port/m.test(source)) continue // TODO support modules
if (source.includes('Realm.create')) continue // TODO support Realm object
if (source.includes('// MODULE')) continue // TODO support modules
if (source.includes('// Files:')) continue // TODO support includes
// the default --stack-size is necessary to keep output of stack overflowing
// tests stable; it will be overridden by a Flags comment
let flags = { '--stack-size': 2048 }, flagstr = ""
// parse command line flags
for (let s of source.matchAll(/\/\/ Flags:(.+)/g)) {
for (let m of s[1].matchAll(/\s*([\S]+)/g)) {
const v = m[1].match(/([\S]+)=([\S]+)/)
if (v) {
flags[v[1]] = v[2]
flagstr += ` ${v[1]}=${v[2]}`
} else {
flags[m[1]] = true
flagstr += ` ${m[1]}`
}
}
}
// exclude tests that use V8 intrinsics like %OptimizeFunctionOnNextCall
if (flags["--allow-natives-syntax"]) continue
if (flags["--allow-natives-for-differential-fuzzing"]) continue
if (flags["--dump-counters"]) continue
if (flags["--expose-cputracemark"]) continue
if (flags["--harmony-rab-gsab"]) continue
if (flags["--harmony-class-fields"]) continue
if (flags["--enable-experimental-regexp-engine"]) continue
if (flags["--experimental-stack-trace-frames"]) continue
if (flags["--js-float16array"]) continue
if (flags["--expose-cputracemark-as"]) continue
// exclude tests that use V8 extensions
if (flags["--expose-externalize-string"]) continue
// parse environment variables
let env = {}, envstr = ""
for (let s of source.matchAll(/environment variables:(.+)/ig)) {
for (let m of s[1].matchAll(/\s*([\S]+)=([\S]+)/g)) {
env[m[1]] = m[2]
envstr += ` ${m[1]}=${m[2]}`
}
}
//print(`=== ${file}${envstr}${flagstr}`)
print(`=== ${file}${envstr}`)
const args = [argv0,
"--stack-size", `${flags["--stack-size"]}`,
"-I", "mjsunit.js",
"-I", tweak,
file]
const opts = {block:true, cwd:dir, env:env, usePath:false}
os.exec(args, opts)
}
function realpath(path) {
return os.realpath(path)[0]
}