de5e039c83
Summary: - Take `synthPendingDepth` into account when caching TC results - Add `maxSynthPendingDepth` option with default := 2. - Add support for tracking `synthPending` failures when using `set_option diagnostics true` closes #2522 closes #3313 closes #3927 Identical to #4114 but with `maxSynthPendingDepth := 1` closes #4114 cc @semorrison
44 lines
654 B
Text
44 lines
654 B
Text
namespace Ex1
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class A where
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class B (n : Nat) where
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class C where
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instance test [B 10000] [C] : A where
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instance Bsucc {n : Nat} [B n] : B n.succ where
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instance instB0 : B 0 where
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instance instB10000 : B 10000 where
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/--
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error: failed to synthesize
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A
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use `set_option diagnostics true` to get diagnostic information
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-/
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#guard_msgs in
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#synth A -- should fail quickly
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end Ex1
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namespace Ex2
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class A where
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class B (n : Nat) where
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class C where
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instance test' [B 10] : A where
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instance test [B 0] [C] : A where
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instance foo {n : Nat} [B n.succ] : B n where
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instance instB (n : Nat) : B n where
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/--
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info: test'
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-/
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#guard_msgs in
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#synth A
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end Ex2
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