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Improve support for binding pattern

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Including improvements for parameters, variable assignment and
catch parameter.
This commit is contained in:
Anthony Van de Gejuchte
2016-08-20 22:32:29 +02:00
parent 1db50c3b16
commit 13ed445607
14 changed files with 727 additions and 312 deletions
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57
test/compress/destructuring.js
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@@ -1,27 +1,75 @@
destructuring_arrays: {
input: {
{const [aa, bb] = cc;}
{const [aa, [bb, cc]] = dd;}
{let [aa, bb] = cc;}
{let [aa, [bb, cc]] = dd;}
var [aa, bb] = cc;
var [aa, [bb, cc]] = dd;
var [,[,,,,,],,,zz,] = xx;
}
expect: {
var[aa,bb]=cc;
{const [aa, bb] = cc;}
{const [aa, [bb, cc]] = dd;}
{let [aa, bb] = cc;}
{let [aa, [bb, cc]] = dd;}
var [aa, bb] = cc;
var [aa, [bb, cc]] = dd;
var [,[,,,,,],,,zz,] = xx;
}
}
destructuring_objects: {
input: {
{const {aa, bb} = {aa:1, bb:2};}
{const {aa, bb: {cc, dd}} = {aa:1, bb: {cc:2, dd: 3}};}
{let {aa, bb} = {aa:1, bb:2};}
{let {aa, bb: {cc, dd}} = {aa:1, bb: {cc:2, dd: 3}};}
var {aa, bb} = {aa:1, bb:2};
var {aa, bb: {cc, dd}} = {aa:1, bb: {cc:2, dd: 3}};
}
expect: {
var{aa,bb}={aa:1,bb:2};
{const {aa, bb} = {aa:1, bb:2};}
{const {aa, bb: {cc, dd}} = {aa:1, bb: {cc:2, dd: 3}};}
{let {aa, bb} = {aa:1, bb:2};}
{let {aa, bb: {cc, dd}} = {aa:1, bb: {cc:2, dd: 3}};}
var {aa, bb} = {aa:1, bb:2};
var {aa, bb: {cc, dd}} = {aa:1, bb: {cc:2, dd: 3}};
}
}
destructuring_objects_trailing_elision: {
input: {
var {cc,} = foo;
}
expect_exact: "var{cc}=foo;"
}
nested_destructuring_objects: {
input: {
const [{a},b] = c;
let [{a},b] = c;
var [{a},b] = c;
}
expect_exact: 'var[{a},b]=c;';
expect_exact: 'const[{a},b]=c;let[{a},b]=c;var[{a},b]=c;';
}
destructuring_constdef_in_loops: {
input: {
for (const [x,y] in pairs);
for (const [a] = 0;;);
for (const {c} of cees);
}
expect_exact: "for(const[x,y]in pairs);for(const[a]=0;;);for(const{c}of cees);"
}
destructuring_letdef_in_loops: {
input: {
for (let [x,y] in pairs);
for (let [a] = 0;;);
for (let {c} of cees);
}
expect_exact: "for(let[x,y]in pairs);for(let[a]=0;;);for(let{c}of cees);"
}
destructuring_vardef_in_loops: {
@@ -32,6 +80,7 @@ destructuring_vardef_in_loops: {
}
expect_exact: "for(var[x,y]in pairs);for(var[a]=0;;);for(var{c}of cees);"
}
destructuring_expressions: {
input: {
({a, b});