f85c66789d
This PR replaces `Array.feraseIdx` and `Array.insertAt` with `Array.eraseIdx` and `Array.insertIdx`, both of which take a `Nat` argument and a tactic-provided proof that it is in bounds. We also have `eraseIdxIfInBounds` and `insertIdxIfInBounds` which are noops if the index is out of bounds. We also provide a `Fin` valued version of `Array.findIdx?`. Together, these quite ergonomically improve the array indexing safety at a number of places in the compiler/elaborator.
41 lines
1.3 KiB
Text
41 lines
1.3 KiB
Text
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"position": {"line": 0, "character": 21}}
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{"items":
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[{"sortText": "0",
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"label": "insertIdx",
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"kind": 3,
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"documentation":
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{"value": "Insert element `a` at position `i`. ", "kind": "markdown"},
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"data":
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{"params":
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"cPos": 0}},
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{"sortText": "1",
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"label": "insertIdxIfInBounds",
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"kind": 3,
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"documentation":
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{"value":
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"Insert element `a` at position `i`, or do nothing if `as.size < i`. ",
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"kind": "markdown"},
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"data":
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{"params":
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{"textDocument": {"uri": "file:///completionDocString.lean"},
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"position": {"line": 0, "character": 21}},
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"id": {"const": {"declName": "Array.insertIdxIfInBounds"}},
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"cPos": 0}},
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{"sortText": "2",
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"label": "insertIdx!",
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"kind": 3,
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"documentation":
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{"value":
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"Insert element `a` at position `i`. Panics if `i` is not `i ≤ as.size`. ",
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"kind": "markdown"},
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"data":
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{"params":
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{"textDocument": {"uri": "file:///completionDocString.lean"},
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"position": {"line": 0, "character": 21}},
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"id": {"const": {"declName": "Array.insertIdx!"}},
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"cPos": 0}}],
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"isIncomplete": true}
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