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authorbunnei <bunneidev@gmail.com>2015-07-12 03:01:36 +0200
committerbunnei <bunneidev@gmail.com>2015-07-12 03:01:36 +0200
commit8c70b1b8b525de5ff491af934737251bb7ad8bab (patch)
tree672c2c4c251351cc07581b09ad1efae67479c297
parentMerge pull request #909 from yuriks/build-flags (diff)
parentUpdate style rules with to better match current practice. (diff)
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-rw-r--r--CONTRIBUTING.md38
1 files changed, 16 insertions, 22 deletions
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 906a4bc7d..f2dbdf1a4 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -7,19 +7,14 @@ Citra is a brand new project, so we have a great opportunity to keep things clea
* Don't ever introduce new external dependencies into Core
* Don't use any platform specific code in Core
* Use namespaces often
+* Avoid the use of C-style casts and instead prefer C++-style `static_cast` and `reinterpret_cast`. Never use `const_cast` or `dynamic_cast` (we build with RTTI disabled). The only exception to this rule is for casting between two numeric types, where C-style casts are encouraged for brevity and readability.
### Naming Rules
-* Functions
- * PascalCase, "_" may also be used for clarity (e.g. ARM_InitCore)
-* Variables
- * lower_case_underscored
- * Prefix "g_" if global
-* Classes
- * PascalCase, "_" may also be used for clarity (e.g. OGL_VideoInterface)
-* Files/Folders
- * lower_case_underscored
-* Namespaces
- * PascalCase, "_" may also be used for clarity (e.g. ARM_InitCore)
+* Functions: `PascalCase`
+* Variables: `lower_case_underscored`. Prefix with `g_` if global.
+* Classes: `PascalCase`
+* Files and Directories: `lower_case_underscored`
+* Namespaces: `PascalCase`, `_` may also be used for clarity (e.g. `ARM_InitCore`)
### Indentation/Whitespace Style
Follow the indentation/whitespace style shown below. Do not use tabs, use 4-spaces instead.
@@ -36,25 +31,25 @@ namespace Example {
// Declare globals at the top
int g_foo = 0;
-char* g_some_pointer; // Notice the position of the *
+char* g_some_pointer; // Pointer * and reference & stick to the type name
/// A colorful enum.
enum SomeEnum {
COLOR_RED, ///< The color of fire.
COLOR_GREEN, ///< The color of grass.
- COLOR_BLUE ///< Not actually the color of water.
+ COLOR_BLUE, ///< Not actually the color of water.
};
/**
* Very important struct that does a lot of stuff.
- * Note that the asterisks are indented by one space.
+ * Note that the asterisks are indented by one space to align to the first line.
*/
struct Position {
int x, y;
};
-// Use "typename" rather than "class" here, just to be consistent
-template
+// Use "typename" rather than "class" here
+template <typename T>
void FooBar() {
int some_array[] = {
5,
@@ -72,7 +67,7 @@ void FooBar() {
// Comment directly above code when possible
if (some_condition) single_statement();
- // Place a single space after the for loop semicolons
+ // Place a single space after the for loop semicolons, prefer pre-increment
for (int i = 0; i != 25; ++i) {
// This is how we write loops
}
@@ -83,6 +78,9 @@ void FooBar() {
if (this || condition_takes_up_multiple &&
lines && like && this || everything ||
alright || then) {
+
+ // Leave a blank space before the if block body if the condition was continued across
+ // several lines.
}
switch (var) {
@@ -101,11 +99,7 @@ void FooBar() {
break;
}
- std::vector
- you_can_declare,
- a_few,
- variables,
- like_this;
+ std::vector<T> you_can_declare, a_few, variables, like_this;
}
}