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Make 'instanceof' behave like TS if the lhs is nullable

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This commit is contained in:
dcodeIO
2018-06-09 02:01:45 +02:00
parent 7478c8a0d3
commit 47f2e0950a
8 changed files with 220 additions and 54 deletions
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49
tests/compiler/instanceof.optimized.wat
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@ -4,6 +4,7 @@
(type $Fi (func (param f64) (result i32)))
(type $v (func))
(import "env" "abort" (func $~lib/env/abort (param i32 i32 i32 i32)))
(global $instanceof/an (mut i32) (i32.const 0))
(memory $0 1)
(data (i32.const 8) "\0d\00\00\00i\00n\00s\00t\00a\00n\00c\00e\00o\00f\00.\00t\00s")
(export "memory" (memory $0))
@ -14,7 +15,10 @@
(func $instanceof/isI32<f64> (; 2 ;) (type $Fi) (param $0 f64) (result i32)
(i32.const 0)
)
(func $start (; 3 ;) (type $v)
(func $instanceof/isI32<u32> (; 3 ;) (type $ii) (param $0 i32) (result i32)
(i32.const 0)
)
(func $start (; 4 ;) (type $v)
(if
(i32.eqz
(call $instanceof/isI32<i32>
@ -45,5 +49,48 @@
(unreachable)
)
)
(if
(call $instanceof/isI32<u32>
(i32.const 0)
)
(block
(call $~lib/env/abort
(i32.const 0)
(i32.const 8)
(i32.const 40)
(i32.const 0)
)
(unreachable)
)
)
(if
(get_global $instanceof/an)
(block
(call $~lib/env/abort
(i32.const 0)
(i32.const 8)
(i32.const 43)
(i32.const 0)
)
(unreachable)
)
)
(set_global $instanceof/an
(i32.const 1)
)
(if
(i32.eqz
(get_global $instanceof/an)
)
(block
(call $~lib/env/abort
(i32.const 0)
(i32.const 8)
(i32.const 46)
(i32.const 0)
)
(unreachable)
)
)
)
)