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Merge pull request #2309 from Microsoft/recursiveLetConst

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disallow recursive references for block-scoped bindings
This commit is contained in:
Vladimir Matveev
2015-03-12 13:20:08 -07:00
parent ecfa19a760 1ce105ae4b
commit 17d2a1bedf
8 changed files with 197 additions and 47 deletions
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10
tests/baselines/reference/for-of55.errors.txt Normal file
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@@ -0,0 +1,10 @@
tests/cases/conformance/es6/for-ofStatements/for-of55.ts(2,15): error TS2448: Block-scoped variable 'v' used before its declaration.
==== tests/cases/conformance/es6/for-ofStatements/for-of55.ts (1 errors) ====
let v = [1];
for (let v of v) {
~
!!! error TS2448: Block-scoped variable 'v' used before its declaration.
v;
}

12
tests/baselines/reference/for-of55.types
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@@ -1,12 +0,0 @@
=== tests/cases/conformance/es6/for-ofStatements/for-of55.ts ===
let v = [1];
>v : number[]
>[1] : number[]
for (let v of v) {
>v : any
>v : any
v;
>v : any
}

47
tests/baselines/reference/recursiveLetConst.errors.txt Normal file
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tests/cases/compiler/recursiveLetConst.ts(2,9): error TS2448: Block-scoped variable 'x' used before its declaration.
tests/cases/compiler/recursiveLetConst.ts(3,12): error TS2448: Block-scoped variable 'x1' used before its declaration.
tests/cases/compiler/recursiveLetConst.ts(4,11): error TS2448: Block-scoped variable 'y' used before its declaration.
tests/cases/compiler/recursiveLetConst.ts(5,14): error TS2448: Block-scoped variable 'y1' used before its declaration.
tests/cases/compiler/recursiveLetConst.ts(6,14): error TS2448: Block-scoped variable 'v' used before its declaration.
tests/cases/compiler/recursiveLetConst.ts(7,16): error TS2448: Block-scoped variable 'v' used before its declaration.
tests/cases/compiler/recursiveLetConst.ts(8,15): error TS2448: Block-scoped variable 'v' used before its declaration.
tests/cases/compiler/recursiveLetConst.ts(9,15): error TS2448: Block-scoped variable 'v' used before its declaration.
tests/cases/compiler/recursiveLetConst.ts(10,17): error TS2448: Block-scoped variable 'v' used before its declaration.
tests/cases/compiler/recursiveLetConst.ts(11,11): error TS2448: Block-scoped variable 'x2' used before its declaration.
==== tests/cases/compiler/recursiveLetConst.ts (10 errors) ====
'use strict'
let x = x + 1;
~
!!! error TS2448: Block-scoped variable 'x' used before its declaration.
let [x1] = x1 + 1;
~~
!!! error TS2448: Block-scoped variable 'x1' used before its declaration.
const y = y + 2;
~
!!! error TS2448: Block-scoped variable 'y' used before its declaration.
const [y1] = y1 + 1;
~~
!!! error TS2448: Block-scoped variable 'y1' used before its declaration.
for (let v = v; ; ) { }
~
!!! error TS2448: Block-scoped variable 'v' used before its declaration.
for (let [v] = v; ;) { }
~
!!! error TS2448: Block-scoped variable 'v' used before its declaration.
for (let v in v) { }
~
!!! error TS2448: Block-scoped variable 'v' used before its declaration.
for (let v of v) { }
~
!!! error TS2448: Block-scoped variable 'v' used before its declaration.
for (let [v] of v) { }
~
!!! error TS2448: Block-scoped variable 'v' used before its declaration.
let [x2 = x2] = []
~~
!!! error TS2448: Block-scoped variable 'x2' used before its declaration.
let z0 = () => z0;
let z1 = function () { return z1; }
let z2 = { f() { return z2;}}

42
tests/baselines/reference/recursiveLetConst.js Normal file
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@@ -0,0 +1,42 @@
//// [recursiveLetConst.ts]
'use strict'
let x = x + 1;
let [x1] = x1 + 1;
const y = y + 2;
const [y1] = y1 + 1;
for (let v = v; ; ) { }
for (let [v] = v; ;) { }
for (let v in v) { }
for (let v of v) { }
for (let [v] of v) { }
let [x2 = x2] = []
let z0 = () => z0;
let z1 = function () { return z1; }
let z2 = { f() { return z2;}}
//// [recursiveLetConst.js]
'use strict';
let x = x + 1;
let [x1] = x1 + 1;
const y = y + 2;
const [y1] = y1 + 1;
for (let v = v;;) {
}
for (let [v] = v;;) {
}
for (let v in v) {
}
for (let v of v) {
}
for (let [v] of v) {
}
let [x2 = x2] = [];
let z0 = () => z0;
let z1 = function () {
return z1;
};
let z2 = {
f() {
return z2;
}
};

15
tests/cases/compiler/recursiveLetConst.ts Normal file
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@@ -0,0 +1,15 @@
// @target:es6
'use strict'
let x = x + 1;
let [x1] = x1 + 1;
const y = y + 2;
const [y1] = y1 + 1;
for (let v = v; ; ) { }
for (let [v] = v; ;) { }
for (let v in v) { }
for (let v of v) { }
for (let [v] of v) { }
let [x2 = x2] = []
let z0 = () => z0;
let z1 = function () { return z1; }
let z2 = { f() { return z2;}}