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It matters because if the braces are not syntax, you can decide what code to execute as the condition body at runtime. set condition-body {puts "Hello, wor
by mroll 10y ago
It matters because if the braces are not syntax, you can decide what code to execute as the condition body at runtime.
set condition-body {puts "Hello, world"}
if { $condition } $condition-body
To get this to run, you need to splice in the condition-body like so,
if { $condition } {*}$condition-body
But you get the point.
- wtetzner 10y agoBut the "then" and "else" parts of the Rust "if" are expressions. What you're talking about doesn't seem to be related to which things are expressions, it's more like being able to eval code at runtime.