Merge pull request #6355 from Microsoft/contextuallyTypeAndAndComma
Contextually type '&&' and the comma operator
This commit is contained in:
commit
fec691ec22
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@ -7362,6 +7362,12 @@ namespace ts {
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}
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return type;
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}
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else if (operator === SyntaxKind.AmpersandAmpersandToken || operator === SyntaxKind.CommaToken) {
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if (node === binaryExpression.right) {
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return getContextualType(binaryExpression);
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}
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}
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return undefined;
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}
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@ -0,0 +1,9 @@
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//// [contextuallyTypeCommaOperator01.ts]
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let x: (a: string) => string;
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x = (100, a => a);
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//// [contextuallyTypeCommaOperator01.js]
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var x;
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x = (100, function (a) { return a; });
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@ -0,0 +1,11 @@
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=== tests/cases/conformance/types/contextualTypes/commaOperator/contextuallyTypeCommaOperator01.ts ===
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let x: (a: string) => string;
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>x : Symbol(x, Decl(contextuallyTypeCommaOperator01.ts, 1, 3))
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>a : Symbol(a, Decl(contextuallyTypeCommaOperator01.ts, 1, 8))
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x = (100, a => a);
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>x : Symbol(x, Decl(contextuallyTypeCommaOperator01.ts, 1, 3))
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>a : Symbol(a, Decl(contextuallyTypeCommaOperator01.ts, 3, 9))
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>a : Symbol(a, Decl(contextuallyTypeCommaOperator01.ts, 3, 9))
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@ -0,0 +1,16 @@
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=== tests/cases/conformance/types/contextualTypes/commaOperator/contextuallyTypeCommaOperator01.ts ===
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let x: (a: string) => string;
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>x : (a: string) => string
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>a : string
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x = (100, a => a);
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>x = (100, a => a) : (a: string) => string
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>x : (a: string) => string
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>(100, a => a) : (a: string) => string
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>100, a => a : (a: string) => string
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>100 : number
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>a => a : (a: string) => string
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>a : string
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>a : string
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@ -0,0 +1,18 @@
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tests/cases/conformance/types/contextualTypes/commaOperator/contextuallyTypeCommaOperator02.ts(4,1): error TS2322: Type '(a: string) => number' is not assignable to type '(a: string) => string'.
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Type 'number' is not assignable to type 'string'.
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tests/cases/conformance/types/contextualTypes/commaOperator/contextuallyTypeCommaOperator02.ts(5,11): error TS2322: Type 'string' is not assignable to type 'number'.
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==== tests/cases/conformance/types/contextualTypes/commaOperator/contextuallyTypeCommaOperator02.ts (2 errors) ====
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let x: (a: string) => string;
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x = (100, a => {
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~
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!!! error TS2322: Type '(a: string) => number' is not assignable to type '(a: string) => string'.
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!!! error TS2322: Type 'number' is not assignable to type 'string'.
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const b: number = a;
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~
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!!! error TS2322: Type 'string' is not assignable to type 'number'.
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return b;
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});
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15
tests/baselines/reference/contextuallyTypeCommaOperator02.js
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15
tests/baselines/reference/contextuallyTypeCommaOperator02.js
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@ -0,0 +1,15 @@
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//// [contextuallyTypeCommaOperator02.ts]
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let x: (a: string) => string;
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x = (100, a => {
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const b: number = a;
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return b;
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});
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//// [contextuallyTypeCommaOperator02.js]
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var x;
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x = (100, function (a) {
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var b = a;
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return b;
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});
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@ -0,0 +1,10 @@
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tests/cases/conformance/types/contextualTypes/commaOperator/contextuallyTypeCommaOperator03.ts(4,6): error TS7006: Parameter 'a' implicitly has an 'any' type.
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==== tests/cases/conformance/types/contextualTypes/commaOperator/contextuallyTypeCommaOperator03.ts (1 errors) ====
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let x: (a: string) => string;
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x = (a => a, b => b);
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~
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!!! error TS7006: Parameter 'a' implicitly has an 'any' type.
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@ -0,0 +1,9 @@
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//// [contextuallyTypeCommaOperator03.ts]
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let x: (a: string) => string;
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x = (a => a, b => b);
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//// [contextuallyTypeCommaOperator03.js]
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var x;
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x = (function (a) { return a; }, function (b) { return b; });
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11
tests/baselines/reference/contextuallyTypeLogicalAnd01.js
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11
tests/baselines/reference/contextuallyTypeLogicalAnd01.js
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@ -0,0 +1,11 @@
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//// [contextuallyTypeLogicalAnd01.ts]
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let x: (a: string) => string;
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let y = true;
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x = y && (a => a);
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//// [contextuallyTypeLogicalAnd01.js]
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var x;
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var y = true;
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x = y && (function (a) { return a; });
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@ -0,0 +1,15 @@
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=== tests/cases/conformance/types/contextualTypes/logicalAnd/contextuallyTypeLogicalAnd01.ts ===
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let x: (a: string) => string;
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>x : Symbol(x, Decl(contextuallyTypeLogicalAnd01.ts, 1, 3))
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>a : Symbol(a, Decl(contextuallyTypeLogicalAnd01.ts, 1, 8))
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let y = true;
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>y : Symbol(y, Decl(contextuallyTypeLogicalAnd01.ts, 2, 3))
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x = y && (a => a);
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>x : Symbol(x, Decl(contextuallyTypeLogicalAnd01.ts, 1, 3))
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>y : Symbol(y, Decl(contextuallyTypeLogicalAnd01.ts, 2, 3))
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>a : Symbol(a, Decl(contextuallyTypeLogicalAnd01.ts, 4, 10))
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>a : Symbol(a, Decl(contextuallyTypeLogicalAnd01.ts, 4, 10))
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20
tests/baselines/reference/contextuallyTypeLogicalAnd01.types
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20
tests/baselines/reference/contextuallyTypeLogicalAnd01.types
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@ -0,0 +1,20 @@
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=== tests/cases/conformance/types/contextualTypes/logicalAnd/contextuallyTypeLogicalAnd01.ts ===
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let x: (a: string) => string;
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>x : (a: string) => string
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>a : string
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let y = true;
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>y : boolean
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>true : boolean
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x = y && (a => a);
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>x = y && (a => a) : (a: string) => string
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>x : (a: string) => string
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>y && (a => a) : (a: string) => string
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>y : boolean
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>(a => a) : (a: string) => string
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>a => a : (a: string) => string
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>a : string
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>a : string
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@ -0,0 +1,19 @@
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tests/cases/conformance/types/contextualTypes/logicalAnd/contextuallyTypeLogicalAnd02.ts(5,1): error TS2322: Type '(a: string) => number' is not assignable to type '(a: string) => string'.
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Type 'number' is not assignable to type 'string'.
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tests/cases/conformance/types/contextualTypes/logicalAnd/contextuallyTypeLogicalAnd02.ts(6,11): error TS2322: Type 'string' is not assignable to type 'number'.
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==== tests/cases/conformance/types/contextualTypes/logicalAnd/contextuallyTypeLogicalAnd02.ts (2 errors) ====
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let x: (a: string) => string;
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let y = true;
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x = y && (a => {
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~
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!!! error TS2322: Type '(a: string) => number' is not assignable to type '(a: string) => string'.
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!!! error TS2322: Type 'number' is not assignable to type 'string'.
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const b: number = a;
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~
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!!! error TS2322: Type 'string' is not assignable to type 'number'.
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return b;
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});
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17
tests/baselines/reference/contextuallyTypeLogicalAnd02.js
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17
tests/baselines/reference/contextuallyTypeLogicalAnd02.js
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//// [contextuallyTypeLogicalAnd02.ts]
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let x: (a: string) => string;
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let y = true;
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x = y && (a => {
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const b: number = a;
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return b;
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});
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//// [contextuallyTypeLogicalAnd02.js]
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var x;
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var y = true;
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x = y && (function (a) {
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var b = a;
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return b;
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});
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@ -0,0 +1,11 @@
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tests/cases/conformance/types/contextualTypes/logicalAnd/contextuallyTypeLogicalAnd03.ts(5,6): error TS7006: Parameter 'a' implicitly has an 'any' type.
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==== tests/cases/conformance/types/contextualTypes/logicalAnd/contextuallyTypeLogicalAnd03.ts (1 errors) ====
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let x: (a: string) => string;
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let y = true;
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x = (a => a) && (b => b);
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~
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!!! error TS7006: Parameter 'a' implicitly has an 'any' type.
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11
tests/baselines/reference/contextuallyTypeLogicalAnd03.js
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11
tests/baselines/reference/contextuallyTypeLogicalAnd03.js
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//// [contextuallyTypeLogicalAnd03.ts]
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let x: (a: string) => string;
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let y = true;
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x = (a => a) && (b => b);
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//// [contextuallyTypeLogicalAnd03.js]
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var x;
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var y = true;
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x = (function (a) { return a; }) && (function (b) { return b; });
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@ -0,0 +1,5 @@
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// @noImplicitAny: true
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let x: (a: string) => string;
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x = (100, a => a);
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@ -0,0 +1,8 @@
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// @noImplicitAny: true
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let x: (a: string) => string;
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x = (100, a => {
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const b: number = a;
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return b;
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});
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@ -0,0 +1,5 @@
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// @noImplicitAny: true
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let x: (a: string) => string;
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x = (a => a, b => b);
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@ -0,0 +1,6 @@
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// @noImplicitAny: true
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let x: (a: string) => string;
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let y = true;
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x = y && (a => a);
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@ -0,0 +1,9 @@
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// @noImplicitAny: true
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let x: (a: string) => string;
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let y = true;
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x = y && (a => {
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const b: number = a;
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return b;
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});
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@ -0,0 +1,6 @@
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// @noImplicitAny: true
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let x: (a: string) => string;
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let y = true;
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x = (a => a) && (b => b);
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