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Simplify Halstead metric #223

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merged 1 commit into from
Jun 25, 2020
Merged

Simplify Halstead metric #223

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152 changes: 152 additions & 0 deletions src/getter.rs
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
use tree_sitter::Node;

use crate::metrics::halstead::HalsteadType;
use crate::spaces::SpaceKind;
use crate::traits::Search;

Expand All @@ -23,6 +24,10 @@ pub trait Getter {
fn get_space_kind(_node: &Node) -> SpaceKind {
SpaceKind::Unknown
}

fn get_op_type(_node: &Node) -> HalsteadType {
HalsteadType::Unknown
}
}

impl Getter for PythonCode {
Expand All @@ -35,6 +40,34 @@ impl Getter for PythonCode {
_ => SpaceKind::Unknown,
}
}

fn get_op_type(node: &Node) -> HalsteadType {
use Python::*;

let id = node.kind_id();
match id.into() {
Import | DOT | From | LPAREN | COMMA | As | STAR | GTGT | Assert | COLONEQ | Return
| Del | Raise | Pass | Break | Continue | If | Elif | Else | Async | For | In
| While | Try | Except | Finally | With | DASHGT | EQ | Global | Exec | AT | Not
| And | Or | PLUS | DASH | SLASH | PERCENT | SLASHSLASH | STARSTAR | PIPE | AMP
| CARET | LTLT | TILDE | LT | LTEQ | EQEQ | BANGEQ | GTEQ | GT | LTGT | Is | PLUSEQ
| DASHEQ | STAREQ | SLASHEQ | ATEQ | SLASHSLASHEQ | PERCENTEQ | STARSTAREQ | GTGTEQ
| LTLTEQ | AMPEQ | CARETEQ | PIPEEQ | Yield | LBRACK | LBRACE | Await | Await2
| Print => HalsteadType::Operator,
Identifier | Integer | Float | True | False | None => HalsteadType::Operand,
String => {
let mut operator = HalsteadType::Unknown;
// check if we've a documentation string or a multiline comment
if let Some(parent) = node.parent() {
if parent.kind_id() != ExpressionStatement || parent.child_count() != 1 {
operator = HalsteadType::Operand;
};
}
operator
}
_ => HalsteadType::Unknown,
}
}
}

impl Getter for MozjsCode {
Expand Down Expand Up @@ -82,6 +115,27 @@ impl Getter for MozjsCode {
Some("<anonymous>")
}
}

fn get_op_type(node: &Node) -> HalsteadType {
use Mozjs::*;

let id = node.kind_id();
match id.into() {
Export | Import | Import2 | Extends | DOT | From | LPAREN | COMMA | As | STAR
| GTGT | GTGTGT | COLON | Return | Delete | Throw | Break | Continue | If | Else
| Switch | Case | Default | Async | For | In | Of | While | Try | Catch | Finally
| With | EQ | AT | AMPAMP | PIPEPIPE | PLUS | DASH | DASHDASH | PLUSPLUS | SLASH
| PERCENT | STARSTAR | PIPE | AMP | LTLT | TILDE | LT | LTEQ | EQEQ | BANGEQ | GTEQ
| GT | PLUSEQ | BANG | BANGEQEQ | EQEQEQ | DASHEQ | STAREQ | SLASHEQ | PERCENTEQ
| STARSTAREQ | GTGTEQ | GTGTGTEQ | LTLTEQ | AMPEQ | CARET | CARETEQ | PIPEEQ
| Yield | LBRACK | LBRACE | Await | QMARK | QMARKQMARK | New | Let | Var | Const => {
HalsteadType::Operator
}
Identifier | Identifier2 | String | Number | True | False | Null | Void | This
| Super | Undefined | Set | Get | Typeof | Instanceof => HalsteadType::Operand,
_ => HalsteadType::Unknown,
}
}
}

impl Getter for JavascriptCode {
Expand Down Expand Up @@ -129,6 +183,27 @@ impl Getter for JavascriptCode {
Some("<anonymous>")
}
}

fn get_op_type(node: &Node) -> HalsteadType {
use Javascript::*;

let id = node.kind_id();
match id.into() {
Export | Import | Import2 | Extends | DOT | From | LPAREN | COMMA | As | STAR
| GTGT | GTGTGT | COLON | Return | Delete | Throw | Break | Continue | If | Else
| Switch | Case | Default | Async | For | In | Of | While | Try | Catch | Finally
| With | EQ | AT | AMPAMP | PIPEPIPE | PLUS | DASH | DASHDASH | PLUSPLUS | SLASH
| PERCENT | STARSTAR | PIPE | AMP | LTLT | TILDE | LT | LTEQ | EQEQ | BANGEQ | GTEQ
| GT | PLUSEQ | BANG | BANGEQEQ | EQEQEQ | DASHEQ | STAREQ | SLASHEQ | PERCENTEQ
| STARSTAREQ | GTGTEQ | GTGTGTEQ | LTLTEQ | AMPEQ | CARET | CARETEQ | PIPEEQ
| Yield | LBRACK | LBRACE | Await | QMARK | QMARKQMARK | New | Let | Var | Const => {
HalsteadType::Operator
}
Identifier | Identifier2 | String | Number | True | False | Null | Void | This
| Super | Undefined | Set | Get | Typeof | Instanceof => HalsteadType::Operand,
_ => HalsteadType::Unknown,
}
}
}

impl Getter for TypescriptCode {
Expand Down Expand Up @@ -176,6 +251,27 @@ impl Getter for TypescriptCode {
Some("<anonymous>")
}
}

fn get_op_type(node: &Node) -> HalsteadType {
use Typescript::*;

let id = node.kind_id();
match id.into() {
Export | Import | Import2 | Extends | DOT | From | LPAREN | COMMA | As | STAR
| GTGT | GTGTGT | COLON | Return | Delete | Throw | Break | Continue | If | Else
| Switch | Case | Default | Async | For | In | Of | While | Try | Catch | Finally
| With | EQ | AT | AMPAMP | PIPEPIPE | PLUS | DASH | DASHDASH | PLUSPLUS | SLASH
| PERCENT | STARSTAR | PIPE | AMP | LTLT | TILDE | LT | LTEQ | EQEQ | BANGEQ | GTEQ
| GT | PLUSEQ | BANG | BANGEQEQ | EQEQEQ | DASHEQ | STAREQ | SLASHEQ | PERCENTEQ
| STARSTAREQ | GTGTEQ | GTGTGTEQ | LTLTEQ | AMPEQ | CARET | CARETEQ | PIPEEQ
| Yield | LBRACK | LBRACE | Await | QMARK | QMARKQMARK | New | Let | Var | Const => {
HalsteadType::Operator
}
Identifier | NestedIdentifier | String | Number | True | False | Null | Void | This
| Super | Undefined | Set | Get | Typeof | Instanceof => HalsteadType::Operand,
_ => HalsteadType::Unknown,
}
}
}

impl Getter for TsxCode {
Expand Down Expand Up @@ -223,6 +319,27 @@ impl Getter for TsxCode {
Some("<anonymous>")
}
}

fn get_op_type(node: &Node) -> HalsteadType {
use Tsx::*;

let id = node.kind_id();
match id.into() {
Export | Import | Import2 | Extends | DOT | From | LPAREN | COMMA | As | STAR
| GTGT | GTGTGT | COLON | Return | Delete | Throw | Break | Continue | If | Else
| Switch | Case | Default | Async | For | In | Of | While | Try | Catch | Finally
| With | EQ | AT | AMPAMP | PIPEPIPE | PLUS | DASH | DASHDASH | PLUSPLUS | SLASH
| PERCENT | STARSTAR | PIPE | AMP | LTLT | TILDE | LT | LTEQ | EQEQ | BANGEQ | GTEQ
| GT | PLUSEQ | BANG | BANGEQEQ | EQEQEQ | DASHEQ | STAREQ | SLASHEQ | PERCENTEQ
| STARSTAREQ | GTGTEQ | GTGTGTEQ | LTLTEQ | AMPEQ | CARET | CARETEQ | PIPEEQ
| Yield | LBRACK | LBRACE | Await | QMARK | QMARKQMARK | New | Let | Var | Const => {
HalsteadType::Operator
}
Identifier | NestedIdentifier | String | Number | True | False | Null | Void | This
| Super | Undefined | Set | Get | Typeof | Instanceof => HalsteadType::Operand,
_ => HalsteadType::Unknown,
}
}
}

impl Getter for RustCode {
Expand Down Expand Up @@ -252,6 +369,23 @@ impl Getter for RustCode {
_ => SpaceKind::Unknown,
}
}

fn get_op_type(node: &Node) -> HalsteadType {
use Rust::*;

let id = node.kind_id();
match id.into() {
LPAREN | LBRACE | LBRACK | EQGT | PLUS | STAR | Async | Await | Continue | For | If
| Let | Loop | Match | Return | Unsafe | While | BANG | EQ | COMMA | DASHGT | QMARK
| LT | GT | AMP | MutableSpecifier | DOTDOT | DOTDOTEQ | DASH | AMPAMP | PIPEPIPE
| PIPE | CARET | EQEQ | BANGEQ | LTEQ | GTEQ | LTLT | GTGT | SLASH | PERCENT
| PLUSEQ | DASHEQ | STAREQ | SLASHEQ | PERCENTEQ | AMPEQ | PIPEEQ | CARETEQ
| LTLTEQ | GTGTEQ | Move | DOT | PrimitiveType => HalsteadType::Operator,
Identifier | StringLiteral | RawStringLiteral | IntegerLiteral | FloatLiteral
| BooleanLiteral | Zelf | CharLiteral | UNDERSCORE => HalsteadType::Operand,
_ => HalsteadType::Unknown,
}
}
}

impl Getter for CppCode {
Expand Down Expand Up @@ -312,6 +446,24 @@ impl Getter for CppCode {
_ => SpaceKind::Unknown,
}
}

fn get_op_type(node: &Node) -> HalsteadType {
use Cpp::*;

let id = node.kind_id();
match id.into() {
DOT | LPAREN | LPAREN2 | COMMA | STAR | GTGT | COLON | SEMI | Return | Break
| Continue | If | Else | Switch | Case | Default | For | While | Goto | Do | Delete
| New | Try | Catch | Throw | EQ | AMPAMP | PIPEPIPE | DASH | DASHDASH | DASHGT
| PLUS | PLUSPLUS | SLASH | PERCENT | PIPE | AMP | LTLT | TILDE | LT | LTEQ | EQEQ
| BANGEQ | GTEQ | GT | GT2 | PLUSEQ | BANG | STAREQ | SLASHEQ | PERCENTEQ | GTGTEQ
| LTLTEQ | AMPEQ | CARET | CARETEQ | PIPEEQ | LBRACK | LBRACE | QMARK | COLONCOLON
| PrimitiveType | TypeSpecifier | Sizeof => HalsteadType::Operator,
Identifier | TypeIdentifier | FieldIdentifier | RawStringLiteral | StringLiteral
| NumberLiteral | True | False | Null | Nullptr | DOTDOTDOT => HalsteadType::Operand,
_ => HalsteadType::Unknown,
}
}
}

impl Getter for PreprocCode {}
Expand Down
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