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feat: allow zero or multiple imported names in import statement

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Make the `for` clause in import statements optional, and support comma-separated lists of imported names when present. This removes the previous restriction of exactly one imported variable per import statement.

- Refactor `import()` in compiler to handle optional `for` clause with loop over comma-separated names
- Update existing tests to use comma-separated imports and omit `for` clause where appropriate
- Add new tests: `inside_block`, `name_collision`, `no_variable`
This commit is contained in:
Bob Nystrom
2015-02-17 15:32:33 +00:00
parent d96fc0a381
commit 0d3eae5269
11 changed files with 44 additions and 30 deletions
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test/module/multiple_variables/multiple_variables.wren
+1 -6
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@@ -1,9 +1,4 @@
// TODO: Comma-separated list.
import "module" for Module1
import "module" for Module2
import "module" for Module3
import "module" for Module4
import "module" for Module5
import "module" for Module1, Module2, Module3, Module4, Module5
// Only execute module body once:
// expect: ran module