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Return syntax Prod.mk elems[0] (Prod.mk elems[1] ... (Prod.mk elems[elems.size - 2] elems[elems.size - 1])))
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Return syntax PProd.mk elems[0] (PProd.mk elems[1] ... (PProd.mk elems[elems.size - 2] elems[elems.size - 1])))
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Return syntax MProd.mk elems[0] (MProd.mk elems[1] ... (MProd.mk elems[elems.size - 2] elems[elems.size - 1])))
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- Lean.Elab.Term.mkMPairs elems = Lean.Elab.Term.mkMPairs.loop elems (elems.size - 1) elems.back!
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Return some
if succeeded expanding ·
notation occurring in
the given syntax. Otherwise, return none
.
Examples:
· + 1
=>fun x => x + 1
f · · b
=>fun x1 x2 => f x1 x2 b
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Auxiliary function for expanding the ·
notation.
The extra state Array Syntax
contains the new binder names.
If stx
is a ·
, we create a fresh identifier, store it in the
extra state, and return it. Otherwise, we just return stx
.
Helper method for elaborating terms such as (.+.)
where a constant name is expected.
This method is usually used to implement tactics that take function names as arguments
(e.g., simp
).
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Elaborator for by_elab
.
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