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Issue "'{0}' declarations can only be declared inside a block." for block-scoped variables in presence of parse errors (#61824)
This commit is contained in:
Mateusz Burzyński
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GitHub
GitHub
parent
1e2494566e
commit
fa2a0fc5a2
@@ -52909,7 +52909,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
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blockScopeKind === NodeFlags.Using ? "using" :
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blockScopeKind === NodeFlags.AwaitUsing ? "await using" :
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Debug.fail("Unknown BlockScope flag");
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return grammarErrorOnNode(node, Diagnostics._0_declarations_can_only_be_declared_inside_a_block, keyword);
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error(node, Diagnostics._0_declarations_can_only_be_declared_inside_a_block, keyword);
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}
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}
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}
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@@ -52976,7 +52976,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
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function grammarErrorOnNode(node: Node, message: DiagnosticMessage, ...args: DiagnosticArguments): boolean {
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const sourceFile = getSourceFileOfNode(node);
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if (!hasParseDiagnostics(sourceFile)) {
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diagnostics.add(createDiagnosticForNode(node, message, ...args));
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error(node, message, ...args);
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return true;
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}
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return false;
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@@ -0,0 +1,73 @@
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disallowedBlockScopedInPresenceOfParseErrors1.ts(5,5): error TS1156: 'const' declarations can only be declared inside a block.
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disallowedBlockScopedInPresenceOfParseErrors1.ts(6,17): error TS2454: Variable 'e' is used before being assigned.
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disallowedBlockScopedInPresenceOfParseErrors1.ts(8,1): error TS1128: Declaration or statement expected.
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disallowedBlockScopedInPresenceOfParseErrors1.ts(12,5): error TS1156: 'let' declarations can only be declared inside a block.
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disallowedBlockScopedInPresenceOfParseErrors1.ts(13,17): error TS2454: Variable 'e' is used before being assigned.
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disallowedBlockScopedInPresenceOfParseErrors1.ts(15,1): error TS1128: Declaration or statement expected.
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disallowedBlockScopedInPresenceOfParseErrors1.ts(21,5): error TS1156: 'using' declarations can only be declared inside a block.
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disallowedBlockScopedInPresenceOfParseErrors1.ts(22,17): error TS2454: Variable 'e' is used before being assigned.
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disallowedBlockScopedInPresenceOfParseErrors1.ts(24,1): error TS1128: Declaration or statement expected.
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disallowedBlockScopedInPresenceOfParseErrors1.ts(30,5): error TS1156: 'await using' declarations can only be declared inside a block.
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disallowedBlockScopedInPresenceOfParseErrors1.ts(31,17): error TS2454: Variable 'e' is used before being assigned.
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disallowedBlockScopedInPresenceOfParseErrors1.ts(33,1): error TS1128: Declaration or statement expected.
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==== disallowedBlockScopedInPresenceOfParseErrors1.ts (12 errors) ====
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// https://github.com/microsoft/TypeScript/issues/61734
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function f1() {
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if (1 > 0)
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const e = 3;
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~~~~~~~~~~~~
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!!! error TS1156: 'const' declarations can only be declared inside a block.
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console.log(e);
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~
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!!! error TS2454: Variable 'e' is used before being assigned.
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}
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}
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~
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!!! error TS1128: Declaration or statement expected.
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function f2() {
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if (1 > 0)
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let e = 3;
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~~~~~~~~~~
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!!! error TS1156: 'let' declarations can only be declared inside a block.
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console.log(e);
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~
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!!! error TS2454: Variable 'e' is used before being assigned.
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}
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}
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~
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!!! error TS1128: Declaration or statement expected.
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declare const resource: Disposable
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function f3() {
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if (1 > 0)
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using e = resource;
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~~~~~~~~~~~~~~~~~~~
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!!! error TS1156: 'using' declarations can only be declared inside a block.
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console.log(e);
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~
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!!! error TS2454: Variable 'e' is used before being assigned.
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}
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}
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~
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!!! error TS1128: Declaration or statement expected.
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declare const asyncResource: AsyncDisposable
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async function f4() {
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if (1 > 0)
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await using e = asyncResource;
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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!!! error TS1156: 'await using' declarations can only be declared inside a block.
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console.log(e);
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~
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!!! error TS2454: Variable 'e' is used before being assigned.
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}
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}
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~
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!!! error TS1128: Declaration or statement expected.
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@@ -0,0 +1,75 @@
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//// [tests/cases/compiler/disallowedBlockScopedInPresenceOfParseErrors1.ts] ////
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=== disallowedBlockScopedInPresenceOfParseErrors1.ts ===
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// https://github.com/microsoft/TypeScript/issues/61734
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function f1() {
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>f1 : Symbol(f1, Decl(disallowedBlockScopedInPresenceOfParseErrors1.ts, 0, 0))
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if (1 > 0)
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const e = 3;
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>e : Symbol(e, Decl(disallowedBlockScopedInPresenceOfParseErrors1.ts, 4, 9))
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console.log(e);
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>console.log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>console : Symbol(console, Decl(lib.dom.d.ts, --, --))
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>log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>e : Symbol(e, Decl(disallowedBlockScopedInPresenceOfParseErrors1.ts, 4, 9))
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}
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}
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function f2() {
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>f2 : Symbol(f2, Decl(disallowedBlockScopedInPresenceOfParseErrors1.ts, 7, 1))
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if (1 > 0)
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let e = 3;
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>e : Symbol(e, Decl(disallowedBlockScopedInPresenceOfParseErrors1.ts, 11, 7))
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console.log(e);
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>console.log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>console : Symbol(console, Decl(lib.dom.d.ts, --, --))
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>log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>e : Symbol(e, Decl(disallowedBlockScopedInPresenceOfParseErrors1.ts, 11, 7))
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}
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}
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declare const resource: Disposable
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>resource : Symbol(resource, Decl(disallowedBlockScopedInPresenceOfParseErrors1.ts, 16, 13))
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>Disposable : Symbol(Disposable, Decl(lib.esnext.disposable.d.ts, --, --))
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function f3() {
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>f3 : Symbol(f3, Decl(disallowedBlockScopedInPresenceOfParseErrors1.ts, 16, 34))
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if (1 > 0)
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using e = resource;
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>e : Symbol(e, Decl(disallowedBlockScopedInPresenceOfParseErrors1.ts, 20, 9))
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>resource : Symbol(resource, Decl(disallowedBlockScopedInPresenceOfParseErrors1.ts, 16, 13))
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console.log(e);
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>console.log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>console : Symbol(console, Decl(lib.dom.d.ts, --, --))
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>log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>e : Symbol(e, Decl(disallowedBlockScopedInPresenceOfParseErrors1.ts, 20, 9))
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}
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}
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declare const asyncResource: AsyncDisposable
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>asyncResource : Symbol(asyncResource, Decl(disallowedBlockScopedInPresenceOfParseErrors1.ts, 25, 13))
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>AsyncDisposable : Symbol(AsyncDisposable, Decl(lib.esnext.disposable.d.ts, --, --))
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async function f4() {
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>f4 : Symbol(f4, Decl(disallowedBlockScopedInPresenceOfParseErrors1.ts, 25, 44))
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if (1 > 0)
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await using e = asyncResource;
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>e : Symbol(e, Decl(disallowedBlockScopedInPresenceOfParseErrors1.ts, 29, 15))
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>asyncResource : Symbol(asyncResource, Decl(disallowedBlockScopedInPresenceOfParseErrors1.ts, 25, 13))
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console.log(e);
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>console.log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>console : Symbol(console, Decl(lib.dom.d.ts, --, --))
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>log : Symbol(Console.log, Decl(lib.dom.d.ts, --, --))
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>e : Symbol(e, Decl(disallowedBlockScopedInPresenceOfParseErrors1.ts, 29, 15))
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}
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}
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@@ -0,0 +1,141 @@
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//// [tests/cases/compiler/disallowedBlockScopedInPresenceOfParseErrors1.ts] ////
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=== disallowedBlockScopedInPresenceOfParseErrors1.ts ===
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// https://github.com/microsoft/TypeScript/issues/61734
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function f1() {
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>f1 : () => void
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> : ^^^^^^^^^^
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if (1 > 0)
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>1 > 0 : boolean
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> : ^^^^^^^
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>1 : 1
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> : ^
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>0 : 0
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> : ^
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const e = 3;
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>e : 3
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> : ^
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>3 : 3
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> : ^
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console.log(e);
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>console.log(e) : void
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> : ^^^^
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>console.log : (...data: any[]) => void
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> : ^^^^ ^^ ^^^^^
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>console : Console
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> : ^^^^^^^
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>log : (...data: any[]) => void
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> : ^^^^ ^^ ^^^^^
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>e : 3
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> : ^
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}
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}
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function f2() {
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>f2 : () => void
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> : ^^^^^^^^^^
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if (1 > 0)
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>1 > 0 : boolean
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> : ^^^^^^^
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>1 : 1
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> : ^
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>0 : 0
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> : ^
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let e = 3;
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>e : number
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> : ^^^^^^
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>3 : 3
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> : ^
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console.log(e);
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>console.log(e) : void
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> : ^^^^
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>console.log : (...data: any[]) => void
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> : ^^^^ ^^ ^^^^^
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>console : Console
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> : ^^^^^^^
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>log : (...data: any[]) => void
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> : ^^^^ ^^ ^^^^^
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>e : number
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> : ^^^^^^
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}
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}
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declare const resource: Disposable
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>resource : Disposable
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> : ^^^^^^^^^^
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function f3() {
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>f3 : () => void
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> : ^^^^^^^^^^
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if (1 > 0)
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>1 > 0 : boolean
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> : ^^^^^^^
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>1 : 1
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> : ^
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>0 : 0
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> : ^
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using e = resource;
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>e : Disposable
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> : ^^^^^^^^^^
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>resource : Disposable
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> : ^^^^^^^^^^
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console.log(e);
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>console.log(e) : void
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> : ^^^^
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>console.log : (...data: any[]) => void
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> : ^^^^ ^^ ^^^^^
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>console : Console
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> : ^^^^^^^
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>log : (...data: any[]) => void
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> : ^^^^ ^^ ^^^^^
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>e : Disposable
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> : ^^^^^^^^^^
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}
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}
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declare const asyncResource: AsyncDisposable
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>asyncResource : AsyncDisposable
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> : ^^^^^^^^^^^^^^^
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async function f4() {
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>f4 : () => Promise<void>
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> : ^^^^^^^^^^^^^^^^^^^
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if (1 > 0)
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>1 > 0 : boolean
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> : ^^^^^^^
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>1 : 1
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> : ^
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>0 : 0
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> : ^
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await using e = asyncResource;
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>e : AsyncDisposable
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> : ^^^^^^^^^^^^^^^
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>asyncResource : AsyncDisposable
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> : ^^^^^^^^^^^^^^^
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console.log(e);
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>console.log(e) : void
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> : ^^^^
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>console.log : (...data: any[]) => void
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> : ^^^^ ^^ ^^^^^
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>console : Console
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> : ^^^^^^^
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>log : (...data: any[]) => void
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> : ^^^^ ^^ ^^^^^
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>e : AsyncDisposable
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> : ^^^^^^^^^^^^^^^
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}
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}
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@@ -0,0 +1,37 @@
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// @strict: true
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// @target: esnext
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// @noEmit: true
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// https://github.com/microsoft/TypeScript/issues/61734
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function f1() {
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if (1 > 0)
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const e = 3;
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console.log(e);
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}
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}
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function f2() {
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if (1 > 0)
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let e = 3;
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console.log(e);
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}
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}
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declare const resource: Disposable
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function f3() {
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if (1 > 0)
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using e = resource;
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console.log(e);
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}
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}
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declare const asyncResource: AsyncDisposable
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async function f4() {
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if (1 > 0)
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await using e = asyncResource;
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console.log(e);
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}
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}
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