Bob Nystrom 75d9a39040 feat: allow variable declarations without explicit initializers
In the compiler, when parsing a variable declaration, the `=` token is now optional. If present, the initializer expression is compiled as before. If absent, the variable is implicitly initialized to `null` via a call to `null(compiler, false)`. This change removes the previous `TODO` comment and the unconditional `consume` of `TOKEN_EQ`.

Two new test files verify the behavior for both global and local variables without initializers, asserting that reading such a variable yields `null`.
2013-12-23 02:47:58 +00:00
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Highly customized version of the wren programming language. It has all the modules that you would expect in a std library including http, websockets, sqlite3 and jinja-like templating engine. The idea is to make it suitable for web development.
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