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fix corner cases in keep_fnames (#5393)

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This commit is contained in:
Alex Lam S.L
2022-03-28 20:01:01 +01:00
committed by GitHub
parent 15a4074d1a
commit 8922f08fbf
5 changed files with 35 additions and 13 deletions
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1
lib/compress.js
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@@ -7121,6 +7121,7 @@ Compressor.prototype.compress = function(node) {
if (def.orig.length > 1) return null;
if (def.assignments > 0) return false;
if (def.name == name) return def;
if (compressor.option("keep_fnames")) return false;
var forbidden;
switch (name) {
case "await":

18
lib/minify.js
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@@ -96,15 +96,14 @@ function minify(files, options) {
}, true);
if (options.validate) AST_Node.enable_validation();
var timings = options.timings && { start: Date.now() };
if (options.rename === undefined) options.rename = options.compress && options.mangle;
if (options.annotations !== undefined) set_shorthand("annotations", options, [ "compress", "output" ]);
if (options.ie8) options.ie = options.ie || options.ie8;
if (options.ie) set_shorthand("ie", options, [ "compress", "mangle", "output" ]);
if (options.keep_fargs) set_shorthand("keep_fargs", options, [ "compress", "mangle" ]);
if (options.keep_fnames) set_shorthand("keep_fnames", options, [ "compress", "mangle" ]);
if (options.toplevel) set_shorthand("toplevel", options, [ "compress", "mangle" ]);
if (options.v8) set_shorthand("v8", options, [ "mangle", "output" ]);
if (options.webkit) set_shorthand("webkit", options, [ "compress", "mangle", "output" ]);
if (options.ie) set_shorthand("ie", options, [ "compress", "mangle", "output", "rename" ]);
if (options.keep_fargs) set_shorthand("keep_fargs", options, [ "compress", "mangle", "rename" ]);
if (options.keep_fnames) set_shorthand("keep_fnames", options, [ "compress", "mangle", "rename" ]);
if (options.toplevel) set_shorthand("toplevel", options, [ "compress", "mangle", "rename" ]);
if (options.v8) set_shorthand("v8", options, [ "mangle", "output", "rename" ]);
if (options.webkit) set_shorthand("webkit", options, [ "compress", "mangle", "output", "rename" ]);
var quoted_props;
if (options.mangle) {
options.mangle = defaults(options.mangle, {
@@ -135,6 +134,7 @@ function minify(files, options) {
init_cache(options.mangle.cache);
init_cache(options.mangle.properties.cache);
}
if (options.rename === undefined) options.rename = options.compress && options.mangle;
if (options.sourceMap) {
options.sourceMap = defaults(options.sourceMap, {
content: null,
@@ -190,8 +190,8 @@ function minify(files, options) {
if (options.validate) toplevel.validate_ast();
if (timings) timings.rename = Date.now();
if (options.rename) {
toplevel.figure_out_scope(options.mangle);
toplevel.expand_names(options.mangle);
toplevel.figure_out_scope(options.rename);
toplevel.expand_names(options.rename);
}
if (timings) timings.compress = Date.now();
if (options.compress) {

6
test/compress.js
View File

@@ -183,13 +183,11 @@ function parse_test(file) {
function reminify(orig_options, input_code, input_formatted, stdout) {
for (var i = 0; i < minify_options.length; i++) {
var options = JSON.parse(minify_options[i]);
if (options.compress) [
[
"keep_fargs",
"keep_fnames",
].forEach(function(name) {
if (name in orig_options) {
options.compress[name] = orig_options[name];
}
if (name in orig_options) options[name] = orig_options[name];
});
var options_formatted = JSON.stringify(options, null, 4);
options.validate = true;

2
test/compress/classes.js
View File

@@ -939,6 +939,8 @@ keep_fnames: {
class Foo {}
console.log(Foo.name, class Bar {}.name);
}
expect_stdout: "Foo Bar"
node_version: ">=4"
}
issue_805_1: {

21
test/compress/functions.js
View File

@@ -3557,6 +3557,27 @@ functions_inner_var: {
expect_stdout: "undefined undefined"
}
functions_keep_fnames: {
options = {
functions: true,
keep_fnames: true,
reduce_vars: true,
toplevel: true,
unused: true,
}
input: {
var FAIL = function PASS() {};
FAIL.p = 42;
console.log(FAIL.name, FAIL.p);
}
expect: {
var FAIL = function PASS() {};
FAIL.p = 42;
console.log(FAIL.name, FAIL.p);
}
expect_stdout: "PASS 42"
}
issue_2437: {
options = {
collapse_vars: true,