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| -rw-r--r-- | src/doc/reference.md | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/doc/reference.md b/src/doc/reference.md index a62f8bf9601..f53d083ee06 100644 --- a/src/doc/reference.md +++ b/src/doc/reference.md @@ -1689,7 +1689,20 @@ methods in such an implementation can only be used as direct calls on the values of the type that the implementation targets. In such an implementation, the trait type and `for` after `impl` are omitted. Such implementations are limited to nominal types (enums, structs), and the implementation must appear -in the same module or a sub-module as the `self` type. +in the same module or a sub-module as the `self` type: + +``` +struct Point {x: int, y: int} + +impl Point { + fn log(&self) { + println!("Point is at ({}, {})", self.x, self.y); + } +} + +let my_point = Point {x: 10, y:11}; +my_point.log(); +``` When a trait _is_ specified in an `impl`, all methods declared as part of the trait must be implemented, with matching types and type parameter counts. |