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| author | bors <bors@rust-lang.org> | 2013-12-15 15:16:28 -0800 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2013-12-15 15:16:28 -0800 |
| commit | 9eb89a6c6e60b0ed844258b6c00a68973828b0ba (patch) | |
| tree | 6d7a379d866e6c0ab60a5449f75c172b7e871cae | |
| parent | ebbd30b5b2699c3f16a3387ed0851a2831076295 (diff) | |
| parent | b1b905f30b3d9b124f87780e63f279dad071d721 (diff) | |
| download | rust-9eb89a6c6e60b0ed844258b6c00a68973828b0ba.tar.gz rust-9eb89a6c6e60b0ed844258b6c00a68973828b0ba.zip | |
auto merge of #10982 : ezyang/rust/lvalue-def, r=pcwalton
Based off of Niko's proposed definition of lvalues. Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu>
| -rw-r--r-- | doc/rust.md | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/doc/rust.md b/doc/rust.md index 92d5ee21222..aa4ce002e02 100644 --- a/doc/rust.md +++ b/doc/rust.md @@ -2177,7 +2177,11 @@ Expressions are divided into two main categories: _lvalues_ and _rvalues_. Likewise within each expression, sub-expressions may occur in _lvalue context_ or _rvalue context_. The evaluation of an expression depends both on its own category and the context it occurs within. -[Path](#path-expressions), [field](#field-expressions) and [index](#index-expressions) expressions are lvalues. +An lvalue is an expression that represents a memory location. These +expressions are [paths](#path-expressions) (which refer to local +variables, function and method arguments, or static variables), +dereferences (`*expr`), [indexing expressions](#index-expressions) +(`expr[expr]`), and [field references](#field-expressions) (`expr.f`). All other expressions are rvalues. The left operand of an [assignment](#assignment-expressions), |