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Fix out-of-date explanation.

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Matthew Brown 2020-11-30 00:05:53 -05:00 committed by Daniil Gentili
parent 4ca1fd7d26
commit 68218008e1
Signed by: danog
GPG Key ID: 8C1BE3B34B230CA7
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docs/contributing/how_psalm_works.md
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@ -64,7 +64,7 @@ Somewhere in `FunctionLikeAnalyzer::analyze` we create a new [`StatementsAnalyze
At each line the `Context` object may or may not be manipulated. At branching points (if statements, loops, ternary etc) the `Context` object is cloned and then, at the end of the branch, Psalm figures out how to resolve the changes and update the uncloned `Context` object.
Each PhpParser node is then abused, adding a property called `inferredType` which Psalm uses for type analysis.
The `NodeDataProvider` stores a type for each PhpParser node.
After all the statements have been analysed we gather up all the return types and compare to the given return type.