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fa4b8277f5
Updated the cheatsheet to clearly explain that `add` creates thread-local scoped variables while `add_global`, `add_global_const`, and `set_global` create global variables shared between all threads. Added a summary table comparing scope, thread safety, and conflict behavior. Also added a test exercising the key behavioral differences between these methods. Co-authored-by: leftibot <leftibot@users.noreply.github.com> Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
44 lines
1.2 KiB
ChaiScript
44 lines
1.2 KiB
ChaiScript
// Test demonstrating the difference between add (local scope) and add_global/set_global (global scope)
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// See issue #554
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// --- Local variables (var / add) are scoped ---
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// A local variable defined in a block is not visible outside that block
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var local_val = 10
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assert_equal(local_val, 10)
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// Local variables can be reassigned in scope
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local_val = 20
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assert_equal(local_val, 20)
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// Local variables inside a function are not visible outside
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def set_local() {
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var func_local = 99
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assert_equal(func_local, 99)
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}
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set_local()
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// --- Globals (add_global) are visible everywhere, including inside functions ---
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var g_val = 42
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add_global(g_val, "my_global")
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def check_global() {
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assert_equal(my_global, 42)
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}
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check_global()
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// add_global throws if the global already exists
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assert_throws("Name already exists in current context my_global", fun() { add_global(1, "my_global") })
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// --- set_global overwrites an existing global ---
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set_global(100, "my_global")
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assert_equal(my_global, 100)
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def check_global_updated() {
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assert_equal(my_global, 100)
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}
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check_global_updated()
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// set_global can also create a new global if it doesn't exist
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set_global(77, "new_global")
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assert_equal(new_global, 77)
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