| 1 | /**
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| 2 | * Copyright 2019 The AMP HTML Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | *
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0
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| 9 | *
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| 10 | * Unless required by applicable law or agreed to in writing, software
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 13 | * See the License for the specific language governing permissions and
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| 14 | * limitations under the License.
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| 15 | */
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| 16 | import SourceMapTree from './source-map-tree';
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| 17 | import type { SourceMapInput, SourceMapLoader } from './types';
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| 18 | /**
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| 19 | * Recursively builds a tree structure out of sourcemap files, with each node
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| 20 | * being either an `OriginalSource` "leaf" or a `SourceMapTree` composed of
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| 21 | * `OriginalSource`s and `SourceMapTree`s.
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| 22 | *
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| 23 | * Every sourcemap is composed of a collection of source files and mappings
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| 24 | * into locations of those source files. When we generate a `SourceMapTree` for
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| 25 | * the sourcemap, we attempt to load each source file's own sourcemap. If it
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| 26 | * does not have an associated sourcemap, it is considered an original,
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| 27 | * unmodified source file.
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| 28 | */
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| 29 | export default function buildSourceMapTree(input: SourceMapInput | SourceMapInput[], loader: SourceMapLoader, relativeRoot?: string): SourceMapTree;
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