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Add option for representing parenthesized expressions in the AST.

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This commit is contained in:
Max Schaefer
2014-09-03 18:37:23 +01:00
committed by Marijn Haverbeke
parent e9c7209f8b
commit d525c45644
4 changed files with 158 additions and 1 deletions
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22
test/tests-harmony.js
View File

@@ -15391,3 +15391,25 @@ test('function normal(x, y = 10) {}', {
}, {ecmaVersion: 6});
test("'use strict'; function f([x,,z]) {}", {}, {ecmaVersion: 6});
// test preserveParens option with arrow functions
test("() => 42", {
type: "Program",
body: [{
type: "ExpressionStatement",
expression: {
type: "ArrowFunctionExpression"
}
}]
}, {ecmaVersion: 6, preserveParens: true});
// test preserveParens with generators
test("(for (x of array) for (y of array2) if (x === test) x)", {
type: "Program",
body: [{
type: "ExpressionStatement",
expression: {
type: "ComprehensionExpression"
}
}]
}, {ecmaVersion: 6, preserveParens: true});

117
test/tests.js
View File

@@ -234,6 +234,123 @@ test("(1 + 2 ) * 3", {
}
});
test("(1 + 2 ) * 3", {
type: "Program",
body: [
{
type: "ExpressionStatement",
expression: {
type: "BinaryExpression",
left: {
type: "ParenthesizedExpression",
expression: {
type: "BinaryExpression",
left: {
type: "Literal",
value: 1,
loc: {
start: {
line: 1,
column: 1
},
end: {
line: 1,
column: 2
}
}
},
operator: "+",
right: {
type: "Literal",
value: 2,
loc: {
start: {
line: 1,
column: 5
},
end: {
line: 1,
column: 6
}
}
},
loc: {
start: {
line: 1,
column: 1
},
end: {
line: 1,
column: 6
}
}
},
loc: {
start: {
line: 1,
column: 0
},
end: {
line: 1,
column: 8
}
}
},
operator: "*",
right: {
type: "Literal",
value: 3,
loc: {
start: {
line: 1,
column: 11
},
end: {
line: 1,
column: 12
}
}
},
loc: {
start: {
line: 1,
column: 0
},
end: {
line: 1,
column: 12
}
}
},
loc: {
start: {
line: 1,
column: 0
},
end: {
line: 1,
column: 12
}
}
}
],
loc: {
start: {
line: 1,
column: 0
},
end: {
line: 1,
column: 12
}
}
}, {
locations: true,
preserveParens: true
});
test("(x) = 23", {}, { preserveParens: true });
test("x = []", {
type: "Program",
body: [