Fix passing symbols to trixi_include

Project.toml

@@ -1,7 +1,7 @@
 name = "TrixiBase"
 uuid = "9a0f1c46-06d5-4909-a5a3-ce25d3fa3284"
 authors = ["Michael Schlottke-Lakemper <michael@sloede.com>"]
-version = "0.1.11-DEV"
+version = "0.1.11"
 
 [deps]
 ChangePrecision = "3cb15238-376d-56a3-8042-d33272777c9a"

src/trixi_include.jl

@@ -200,7 +200,9 @@ function replace_assignments(expr, recursive = false; kwargs...)
             for (key, val) in kwargs
                 if (x.head === Symbol("=") || x.head === :kw) &&
                    x.args[1] === Symbol(key)
-                    x.args[2] = :($val)
+                    # Symbols need to be quoted so that they are evaluated as values instead
+                    # of variable names in the included file.
+                    x.args[2] = val isa Symbol ? QuoteNode(val) : val
                     # dump(x)
                 end
             end
@@ -242,7 +244,8 @@ function replace_assignments(expr, recursive = false; kwargs...)
                 # `x = ...` in the file, which will also be replaced in the loop above.
                 for (key, val) in kwargs
                     if !(Symbol(key) in existing_kwargs)
-                        push!(x.args, Expr(:kw, Symbol(key), val))
+                        value = val isa Symbol ? QuoteNode(val) : val
+                        push!(x.args, Expr(:kw, Symbol(key), value))
                     end
                 end
             end

test/trixi_include.jl

@@ -29,6 +29,15 @@
                 @test x == 7
             end
 
+            @trixi_test_nowarn trixi_include(@__MODULE__, path, x = :symbol)
+
+            if VERSION >= v"1.12"
+                mod = @__MODULE__
+                @test (@invokelatest mod.x) === :symbol
+            else
+                @test x === :symbol
+            end
+
             # Verify default version (that includes in `Main`)
             @trixi_test_nowarn trixi_include(path, x = 11)
             if VERSION >= v"1.12"