115 lines
6.9 KiB
Plaintext
115 lines
6.9 KiB
Plaintext
=== tests/cases/conformance/es6/destructuring/destructuringVariableDeclaration1ES6.ts ===
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// The type T associated with a destructuring variable declaration is determined as follows:
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// If the declaration includes a type annotation, T is that type.
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var {a1, a2}: { a1: number, a2: string } = { a1: 10, a2: "world" }
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>a1 : Symbol(a1, Decl(destructuringVariableDeclaration1ES6.ts, 2, 5))
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>a2 : Symbol(a2, Decl(destructuringVariableDeclaration1ES6.ts, 2, 8))
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>a1 : Symbol(a1, Decl(destructuringVariableDeclaration1ES6.ts, 2, 15))
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>a2 : Symbol(a2, Decl(destructuringVariableDeclaration1ES6.ts, 2, 27))
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>a1 : Symbol(a1, Decl(destructuringVariableDeclaration1ES6.ts, 2, 44))
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>a2 : Symbol(a2, Decl(destructuringVariableDeclaration1ES6.ts, 2, 52))
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var [a3, [[a4]], a5]: [number, [[string]], boolean] = [1, [["hello"]], true];
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>a3 : Symbol(a3, Decl(destructuringVariableDeclaration1ES6.ts, 3, 5))
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>a4 : Symbol(a4, Decl(destructuringVariableDeclaration1ES6.ts, 3, 11))
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>a5 : Symbol(a5, Decl(destructuringVariableDeclaration1ES6.ts, 3, 16))
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// The type T associated with a destructuring variable declaration is determined as follows:
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// Otherwise, if the declaration includes an initializer expression, T is the type of that initializer expression.
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var { b1: { b11 } = { b11: "string" } } = { b1: { b11: "world" } };
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>b11 : Symbol(b11, Decl(destructuringVariableDeclaration1ES6.ts, 7, 11))
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>b11 : Symbol(b11, Decl(destructuringVariableDeclaration1ES6.ts, 7, 21))
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>b1 : Symbol(b1, Decl(destructuringVariableDeclaration1ES6.ts, 7, 44))
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>b11 : Symbol(b11, Decl(destructuringVariableDeclaration1ES6.ts, 7, 50))
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var temp = { t1: true, t2: "false" };
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>temp : Symbol(temp, Decl(destructuringVariableDeclaration1ES6.ts, 8, 3))
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>t1 : Symbol(t1, Decl(destructuringVariableDeclaration1ES6.ts, 8, 12))
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>t2 : Symbol(t2, Decl(destructuringVariableDeclaration1ES6.ts, 8, 22))
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var [b2 = 3, b3 = true, b4 = temp] = [3, false, { t1: false, t2: "hello" }];
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>b2 : Symbol(b2, Decl(destructuringVariableDeclaration1ES6.ts, 9, 5))
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>b3 : Symbol(b3, Decl(destructuringVariableDeclaration1ES6.ts, 9, 12))
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>b4 : Symbol(b4, Decl(destructuringVariableDeclaration1ES6.ts, 9, 23))
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>temp : Symbol(temp, Decl(destructuringVariableDeclaration1ES6.ts, 8, 3))
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>t1 : Symbol(t1, Decl(destructuringVariableDeclaration1ES6.ts, 9, 49))
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>t2 : Symbol(t2, Decl(destructuringVariableDeclaration1ES6.ts, 9, 60))
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var [b5 = 3, b6 = true, b7 = temp] = [undefined, undefined, undefined];
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>b5 : Symbol(b5, Decl(destructuringVariableDeclaration1ES6.ts, 10, 5))
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>b6 : Symbol(b6, Decl(destructuringVariableDeclaration1ES6.ts, 10, 12))
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>b7 : Symbol(b7, Decl(destructuringVariableDeclaration1ES6.ts, 10, 23))
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>temp : Symbol(temp, Decl(destructuringVariableDeclaration1ES6.ts, 8, 3))
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>undefined : Symbol(undefined)
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>undefined : Symbol(undefined)
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>undefined : Symbol(undefined)
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// The type T associated with a binding element is determined as follows:
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// If the binding element is a rest element, T is an array type with
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// an element type E, where E is the type of the numeric index signature of S.
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var [...c1] = [1,2,3];
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>c1 : Symbol(c1, Decl(destructuringVariableDeclaration1ES6.ts, 15, 5))
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var [...c2] = [1,2,3, "string"];
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>c2 : Symbol(c2, Decl(destructuringVariableDeclaration1ES6.ts, 16, 5))
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// The type T associated with a binding element is determined as follows:
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// Otherwise, if S is a tuple- like type (section 3.3.3):
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// Let N be the zero-based index of the binding element in the array binding pattern.
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// If S has a property with the numerical name N, T is the type of that property.
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var [d1,d2] = [1,"string"]
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>d1 : Symbol(d1, Decl(destructuringVariableDeclaration1ES6.ts, 22, 5))
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>d2 : Symbol(d2, Decl(destructuringVariableDeclaration1ES6.ts, 22, 8))
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// The type T associated with a binding element is determined as follows:
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// Otherwise, if S is a tuple- like type (section 3.3.3):
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// Otherwise, if S has a numeric index signature, T is the type of the numeric index signature.
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var temp1 = [true, false, true]
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>temp1 : Symbol(temp1, Decl(destructuringVariableDeclaration1ES6.ts, 27, 3))
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var [d3, d4] = [1, "string", ...temp1];
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>d3 : Symbol(d3, Decl(destructuringVariableDeclaration1ES6.ts, 28, 5))
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>d4 : Symbol(d4, Decl(destructuringVariableDeclaration1ES6.ts, 28, 8))
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>temp1 : Symbol(temp1, Decl(destructuringVariableDeclaration1ES6.ts, 27, 3))
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// Combining both forms of destructuring,
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var {e: [e1, e2, e3 = { b1: 1000, b4: 200 }]} = { e: [1, 2, { b1: 4, b4: 0 }] };
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>e1 : Symbol(e1, Decl(destructuringVariableDeclaration1ES6.ts, 31, 9))
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>e2 : Symbol(e2, Decl(destructuringVariableDeclaration1ES6.ts, 31, 12))
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>e3 : Symbol(e3, Decl(destructuringVariableDeclaration1ES6.ts, 31, 16))
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>b1 : Symbol(b1, Decl(destructuringVariableDeclaration1ES6.ts, 31, 23))
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>b4 : Symbol(b4, Decl(destructuringVariableDeclaration1ES6.ts, 31, 33))
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>e : Symbol(e, Decl(destructuringVariableDeclaration1ES6.ts, 31, 49))
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>b1 : Symbol(b1, Decl(destructuringVariableDeclaration1ES6.ts, 31, 61))
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>b4 : Symbol(b4, Decl(destructuringVariableDeclaration1ES6.ts, 31, 68))
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var {f: [f1, f2, { f3: f4, f5 }, , ]} = { f: [1, 2, { f3: 4, f5: 0 }] };
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>f1 : Symbol(f1, Decl(destructuringVariableDeclaration1ES6.ts, 32, 9))
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>f2 : Symbol(f2, Decl(destructuringVariableDeclaration1ES6.ts, 32, 12))
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>f4 : Symbol(f4, Decl(destructuringVariableDeclaration1ES6.ts, 32, 18))
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>f5 : Symbol(f5, Decl(destructuringVariableDeclaration1ES6.ts, 32, 26))
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>f : Symbol(f, Decl(destructuringVariableDeclaration1ES6.ts, 32, 41))
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>f3 : Symbol(f3, Decl(destructuringVariableDeclaration1ES6.ts, 32, 53))
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>f5 : Symbol(f5, Decl(destructuringVariableDeclaration1ES6.ts, 32, 60))
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// When a destructuring variable declaration, binding property, or binding element specifies
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// an initializer expression, the type of the initializer expression is required to be assignable
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// to the widened form of the type associated with the destructuring variable declaration, binding property, or binding element.
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var {g: {g1 = [undefined, null]}}: { g: { g1: any[] } } = { g: { g1: [1, 2] } };
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>g1 : Symbol(g1, Decl(destructuringVariableDeclaration1ES6.ts, 37, 9))
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>undefined : Symbol(undefined)
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>g : Symbol(g, Decl(destructuringVariableDeclaration1ES6.ts, 37, 36))
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>g1 : Symbol(g1, Decl(destructuringVariableDeclaration1ES6.ts, 37, 41))
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>g : Symbol(g, Decl(destructuringVariableDeclaration1ES6.ts, 37, 59))
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>g1 : Symbol(g1, Decl(destructuringVariableDeclaration1ES6.ts, 37, 64))
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var {h: {h1 = [undefined, null]}}: { h: { h1: number[] } } = { h: { h1: [1, 2] } };
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>h1 : Symbol(h1, Decl(destructuringVariableDeclaration1ES6.ts, 38, 9))
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>undefined : Symbol(undefined)
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>h : Symbol(h, Decl(destructuringVariableDeclaration1ES6.ts, 38, 36))
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>h1 : Symbol(h1, Decl(destructuringVariableDeclaration1ES6.ts, 38, 41))
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>h : Symbol(h, Decl(destructuringVariableDeclaration1ES6.ts, 38, 62))
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>h1 : Symbol(h1, Decl(destructuringVariableDeclaration1ES6.ts, 38, 67))
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