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remove type coercion from array values to references

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* Implements #3768. This is a sweeping breaking change that requires
   many (trivial) edits to Zig source code. Array values no longer
   coerced to slices; however one may use `&` to obtain a reference to
   an array value, which may then be coerced to a slice.

 * Adds `IrInstruction::dump`, for debugging purposes. It's useful to
   call to inspect the instruction when debugging Zig IR.

 * Fixes bugs with result location semantics. See the new behavior test
   cases, and compile error test cases.

 * Fixes bugs with `@typeInfo` not properly resolving const values.

 * Behavior tests are passing but std lib tests are not yet. There
   is more work to do before merging this branch.
This commit is contained in:
Andrew Kelley
2019-11-27 03:30:39 -05:00
parent 379d547603
commit bf3ac66150
67 changed files with 727 additions and 837 deletions
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2
lib/std/debug.zig
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@@ -1916,7 +1916,7 @@ const LineNumberProgram = struct {
return error.InvalidDebugInfo;
} else
self.include_dirs[file_entry.dir_index];
const file_name = try fs.path.join(self.file_entries.allocator, [_][]const u8{ dir_name, file_entry.file_name });
const file_name = try fs.path.join(self.file_entries.allocator, &[_][]const u8{ dir_name, file_entry.file_name });
errdefer self.file_entries.allocator.free(file_name);
return LineInfo{
.line = if (self.prev_line >= 0) @intCast(u64, self.prev_line) else 0,