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support let (#4227)

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This commit is contained in:
Alex Lam S.L
2020-10-19 01:32:39 +01:00
committed by GitHub
parent 6c7226c10e
commit 96bf7fceab
10 changed files with 1186 additions and 152 deletions
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43
test/ufuzz/index.js
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@@ -381,32 +381,43 @@ function createBlockVariables(recurmax, stmtDepth, canThrow, fn) {
var block_len = block_vars.length;
var var_len = VAR_NAMES.length;
var consts = [];
var lets = [];
unique_vars.push("a", "b", "c", "undefined", "NaN", "Infinity");
while (!rng(block_vars.length > block_len ? 10 : 100)) {
var name = createVarName(MANDATORY, DONT_STORE);
consts.push(name);
if (rng(2)) {
consts.push(name);
} else {
lets.push(name);
}
block_vars.push(name);
}
unique_vars.length -= 6;
fn(function() {
var s = [];
if (consts.length) {
var save = VAR_NAMES;
VAR_NAMES = VAR_NAMES.filter(function(name) {
return consts.indexOf(name) < 0;
});
var len = VAR_NAMES.length;
s.push("const " + consts.map(function(name) {
var value = createExpression(recurmax, NO_COMMA, stmtDepth, canThrow);
VAR_NAMES.push(name);
return name + " = " + value;
}).join(", ") + ";");
VAR_NAMES = save.concat(VAR_NAMES.slice(len));
if (rng(2)) {
return createDefinitions("const", consts) + "\n" + createDefinitions("let", lets) + "\n";
} else {
return createDefinitions("let", lets) + "\n" + createDefinitions("const", consts) + "\n";
}
return s.join("\n");
});
block_vars.length = block_len;
if (consts.length) VAR_NAMES.splice(var_len, consts.length);
if (consts.length || lets.length) VAR_NAMES.splice(var_len, consts.length + lets.length);
function createDefinitions(type, names) {
if (!names.length) return "";
var save = VAR_NAMES;
VAR_NAMES = VAR_NAMES.filter(function(name) {
return names.indexOf(name) < 0;
});
var len = VAR_NAMES.length;
var s = type + " " + names.map(function(name) {
var value = createExpression(recurmax, NO_COMMA, stmtDepth, canThrow);
VAR_NAMES.push(name);
return name + " = " + value;
}).join(", ") + ";";
VAR_NAMES = save.concat(VAR_NAMES.slice(len));
return s;
}
}
function createFunction(recurmax, allowDefun, canThrow, stmtDepth) {