Merge pull request #384 from julia-vscode/sp/kwdef-const

fix: handle kwdef mutable const correctly

Author: pfitzseb

src/bindings.jl

@@ -102,7 +102,10 @@ function mark_bindings!(x::EXPR, state)
         if CSTParser.defines_struct(x) # mark field block
             for arg in x.args[3].args
                 CSTParser.defines_function(arg) && continue
-                if kwdef && CSTParser.isassignment(arg) || arg.head === :const
+                if arg.head === :const
+                    arg = arg.args[1]
+                end
+                if kwdef && CSTParser.isassignment(arg)
                     arg = arg.args[1]
                 end
                 mark_binding!(arg)

test/runtests.jl

@@ -606,6 +606,24 @@ f(arg) = arg
         """)
             @test StaticLint.errorof(cst[2]) === nothing
         end
+        if VERSION >= v"1.10"
+            let cst = parse_and_pass("""
+                @kwdef mutable struct A
+                    const x::Float64
+                end
+                A(x = 5.0)
+                """)
+                @test StaticLint.errorof(cst[2]) === nothing
+            end
+            let cst = parse_and_pass("""
+                @kwdef mutable struct A
+                    const x::Float64 = 1.0
+                end
+                A(x = 5.0)
+                """)
+                @test StaticLint.errorof(cst[2]) === nothing
+            end
+        end
         let cst = parse_and_pass("""
         import Base: sin
         \"\"\"