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37 changes: 37 additions & 0 deletions
37
test/function/samples/warning-low-resolution-location/_config.js
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const path = require('path'); | ||
const { encode } = require('sourcemap-codec'); | ||
const ID_MAIN = path.join(__dirname, 'main.js'); | ||
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module.exports = { | ||
description: 'handles when a low resolution sourcemap is used to report an error', | ||
options: { | ||
plugins: { | ||
name: 'test-plugin', | ||
transform() { | ||
// each entry of each line consist of | ||
// [generatedColumn, sourceIndex, sourceLine, sourceColumn]; | ||
// this mapping only maps the first line to itself | ||
const decodedMap = [[[0], [0, 0, 0, 0], [1]]]; | ||
return { code: 'export default this', map: { mappings: encode(decodedMap), sources: [] } }; | ||
} | ||
} | ||
}, | ||
warnings: [ | ||
{ | ||
code: 'THIS_IS_UNDEFINED', | ||
frame: ` | ||
1: console.log('original source'); | ||
^`, | ||
id: ID_MAIN, | ||
loc: { | ||
column: 0, | ||
file: ID_MAIN, | ||
line: 1 | ||
}, | ||
message: | ||
"The 'this' keyword is equivalent to 'undefined' at the top level of an ES module, and has been rewritten", | ||
pos: 15, | ||
url: 'https://rollupjs.org/guide/en/#error-this-is-undefined' | ||
} | ||
] | ||
}; |
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console.log('original source'); |
47 changes: 47 additions & 0 deletions
47
test/sourcemaps/samples/transform-low-resolution/_config.js
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const assert = require('assert'); | ||
const MagicString = require('magic-string'); | ||
const { SourceMapConsumer } = require('source-map'); | ||
const { encode } = require('sourcemap-codec'); | ||
const getLocation = require('../../getLocation'); | ||
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module.exports = { | ||
description: 'handles combining low-resolution and high-resolution source-maps when transforming', | ||
options: { | ||
output: { name: 'bundle' }, | ||
plugins: [ | ||
{ | ||
transform(code) { | ||
// each entry of each line consist of | ||
// [generatedColumn, sourceIndex, sourceLine, sourceColumn]; | ||
// this mapping only maps the second line to the first with no column | ||
// details | ||
const decodedMap = [[], [[0, 0, 0, 0]]]; | ||
return { | ||
code: `console.log('added');\n${code}`, | ||
map: { mappings: encode(decodedMap) } | ||
}; | ||
} | ||
}, | ||
{ | ||
transform(code) { | ||
const s = new MagicString(code); | ||
s.prepend("console.log('second');\n"); | ||
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return { | ||
code: s.toString(), | ||
map: s.generateMap({ hires: true }) | ||
}; | ||
} | ||
} | ||
] | ||
}, | ||
async test(code, map) { | ||
const smc = await new SourceMapConsumer(map); | ||
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const generatedLoc = getLocation(code, code.indexOf("'baz'")); | ||
const originalLoc = smc.originalPositionFor(generatedLoc); | ||
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assert.strictEqual(originalLoc.line, 1); | ||
assert.strictEqual(originalLoc.column, 0); | ||
} | ||
}; |
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export let foo = 'bar'; foo += 'baz'; |