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handle source-map operations internally (#3754)

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This commit is contained in:
Alex Lam S.L
2020-03-28 14:18:56 +00:00
committed by GitHub
parent d105ab9722
commit 827bcec186
11 changed files with 173 additions and 89 deletions
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65
test/mocha/sourcemaps.js
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@@ -1,10 +1,9 @@
var assert = require("assert");
var readFileSync = require("fs").readFileSync;
var SourceMapConsumer = require("source-map").SourceMapConsumer;
var fs = require("fs");
var UglifyJS = require("../node");
function read(path) {
return readFileSync(path, "utf8");
return fs.readFileSync(path, "utf8");
}
function source_map(code) {
@@ -44,7 +43,7 @@ function prepare_map(sourceMap) {
}
});
if (result.error) throw result.error;
return new SourceMapConsumer(result.map);
return JSON.parse(result.map);
}
describe("sourcemaps", function() {
@@ -87,7 +86,7 @@ describe("sourcemaps", function() {
});
if (result.error) throw result.error;
assert.strictEqual(result.code, code);
assert.strictEqual(result.map, '{"version":3,"sources":["0"],"names":["console","log"],"mappings":"AAAAA,QAAQC,IAAI","sourceRoot":"//foo.bar/"}');
assert.strictEqual(result.map, '{"version":3,"sourceRoot":"//foo.bar/","sources":["0"],"names":["console","log"],"mappings":"AAAAA,QAAQC,IAAI"}');
});
it("Should produce same source map with DOS or UNIX line endings", function() {
var code = [
@@ -108,9 +107,9 @@ describe("sourcemaps", function() {
describe("inSourceMap", function() {
it("Should read the given string filename correctly when sourceMapIncludeSources is enabled", function() {
var result = UglifyJS.minify(read("./test/input/issue-1236/simple.js"), {
var result = UglifyJS.minify(read("test/input/issue-1236/simple.js"), {
sourceMap: {
content: read("./test/input/issue-1236/simple.js.map"),
content: read("test/input/issue-1236/simple.js.map"),
filename: "simple.min.js",
includeSources: true
}
@@ -122,7 +121,7 @@ describe("sourcemaps", function() {
assert.equal(map.sourcesContent[0], 'let foo = x => "foo " + x;\nconsole.log(foo("bar"));');
});
it("Should process inline source map", function() {
var result = UglifyJS.minify(read("./test/input/issue-520/input.js"), {
var result = UglifyJS.minify(read("test/input/issue-520/input.js"), {
compress: { toplevel: true },
sourceMap: {
content: "inline",
@@ -131,10 +130,10 @@ describe("sourcemaps", function() {
}
});
if (result.error) throw result.error;
assert.strictEqual(result.code + "\n", readFileSync("test/input/issue-520/output.js", "utf8"));
assert.strictEqual(result.code + "\n", read("test/input/issue-520/output.js"));
});
it("Should warn for missing inline source map", function() {
var result = UglifyJS.minify(read("./test/input/issue-1323/sample.js"), {
var result = UglifyJS.minify(read("test/input/issue-1323/sample.js"), {
mangle: false,
sourceMap: {
content: "inline"
@@ -146,8 +145,8 @@ describe("sourcemaps", function() {
});
it("Should handle multiple input and inline source map", function() {
var result = UglifyJS.minify([
read("./test/input/issue-520/input.js"),
read("./test/input/issue-1323/sample.js"),
read("test/input/issue-520/input.js"),
read("test/input/issue-1323/sample.js"),
], {
sourceMap: {
content: "inline",
@@ -163,7 +162,7 @@ describe("sourcemaps", function() {
assert.deepEqual(result.warnings, [ "WARN: inline source map not found: 1" ]);
});
it("Should drop source contents for includeSources=false", function() {
var result = UglifyJS.minify(read("./test/input/issue-520/input.js"), {
var result = UglifyJS.minify(read("test/input/issue-520/input.js"), {
compress: false,
mangle: false,
sourceMap: {
@@ -186,7 +185,7 @@ describe("sourcemaps", function() {
assert.ok(!("sourcesContent" in map));
});
it("Should parse the correct sourceMappingURL", function() {
var result = UglifyJS.minify(read("./test/input/issue-3294/input.js"), {
var result = UglifyJS.minify(read("test/input/issue-3294/input.js"), {
compress: { toplevel: true },
sourceMap: {
content: "inline",
@@ -195,10 +194,10 @@ describe("sourcemaps", function() {
}
});
if (result.error) throw result.error;
assert.strictEqual(result.code + "\n", readFileSync("test/input/issue-3294/output.js", "utf8"));
assert.strictEqual(result.code + "\n", read("test/input/issue-3294/output.js"));
});
it("Should work in presence of unrecognised annotations", function() {
var result = UglifyJS.minify(read("./test/input/issue-3441/input.js"), {
var result = UglifyJS.minify(read("test/input/issue-3441/input.js"), {
compress: false,
mangle: false,
sourceMap: {
@@ -230,7 +229,7 @@ describe("sourcemaps", function() {
assert.strictEqual(code, "var a=function(n){return n};");
});
it("Should work with max_line_len", function() {
var result = UglifyJS.minify(read("./test/input/issue-505/input.js"), {
var result = UglifyJS.minify(read("test/input/issue-505/input.js"), {
compress: {
directives: false,
},
@@ -242,7 +241,7 @@ describe("sourcemaps", function() {
}
});
if (result.error) throw result.error;
assert.strictEqual(result.code, read("./test/input/issue-505/output.js"));
assert.strictEqual(result.code, read("test/input/issue-505/output.js"));
});
it("Should work with unicode characters", function() {
var code = [
@@ -281,29 +280,33 @@ describe("sourcemaps", function() {
it("Should copy over original sourcesContent", function() {
var orig = get_map();
var map = prepare_map(orig);
assert.equal(map.sourceContentFor("index.js"), orig.sourcesContent[0]);
assert.strictEqual(map.sources.length, 1);
assert.strictEqual(map.sources[0], "index.js");
assert.strictEqual(map.sourcesContent.length, 1);
assert.equal(map.sourcesContent[0], orig.sourcesContent[0]);
});
it("Should copy sourcesContent if sources are relative", function() {
var relativeMap = get_map();
relativeMap.sources = ['./index.js'];
var map = prepare_map(relativeMap);
assert.notEqual(map.sourcesContent, null);
assert.equal(map.sourcesContent.length, 1);
assert.equal(map.sourceContentFor("index.js"), relativeMap.sourcesContent[0]);
assert.strictEqual(map.sources.length, 1);
assert.strictEqual(map.sources[0], "./index.js");
assert.strictEqual(map.sourcesContent.length, 1);
assert.equal(map.sourcesContent[0], relativeMap.sourcesContent[0]);
});
it("Should not have invalid mappings from inputSourceMap", function() {
var map = prepare_map(get_map());
// The original source has only 2 lines, check that mappings don't have more lines
var msg = "Mapping should not have higher line number than the original file had";
map.eachMapping(function(mapping) {
assert.ok(mapping.originalLine <= 2, msg);
});
map.allGeneratedPositionsFor({
source: "index.js",
line: 1,
column: 1
}).forEach(function(pos) {
assert.ok(pos.line <= 2, msg);
var lines = map.mappings.split(/;/);
assert.ok(lines.length <= 2, msg);
var indices = [ 0, 0, 1, 0, 0];
lines.forEach(function(segments) {
indices[0] = 0;
segments.split(/,/).forEach(function(segment) {
UglifyJS.vlq_decode(indices, segment);
assert.ok(indices[2] <= 2, msg);
});
});
});
});