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Files with examples of grammar generated in rust-code-analysis project using tree-sitter along with logical lines of code counts
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// Program | |
public class Person { | |
// ClassDeclaration | |
// Modifiers | |
// Public | |
// Class | |
// Identifier | |
// ClassBody | |
// LBRACE | |
private String name; | |
// FieldDeclaration | |
// Modifiers | |
// Private | |
// TypeIdentifier | |
// VariableDeclarator | |
// Identifier | |
// SEMI | |
public Person(String name){ | |
// ConstructorDeclaration | |
// Modifiers | |
// Public | |
// Identifier | |
// FormalParameters | |
// LPAREN | |
// FormalParameter | |
// TypeIdentifier | |
// Identifier | |
// RPAREN | |
// ConstructorBody | |
// LBRACE | |
this.name = name; // +1 | |
// ExpressionStatement | |
// AssignmentExpression | |
// FieldAccess | |
// This | |
// DOT | |
// Identifier | |
// EQ | |
// Identifier | |
// SEMI | |
// Comment | |
} | |
// RBRACE | |
public String getName() { | |
// MethodDeclaration | |
// Modifiers | |
// Public | |
// TypeIdentifier | |
// Identifier | |
// FormalParameters | |
// LPAREN | |
// RPAREN | |
// Block | |
// LBRACE | |
return name; // +1 | |
// ReturnStatement | |
// Return | |
// Identifier | |
// SEMI | |
// Comment | |
} | |
// RBRACE | |
} | |
// RBRACE |
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// Program | |
int x = 10; // +1 | |
// LocalVariableDeclaration | |
// IntegralType | |
// Int | |
// VariableDeclarator | |
// Identifier | |
// EQ | |
// DecimalIntegerLiteral | |
// SEMI | |
// Comment | |
x=+90; // +2 var + unary | |
// ExpressionStatement | |
// AssignmentExpression | |
// Identifier | |
// EQ | |
// UnaryExpression | |
// PLUS | |
// DecimalIntegerLiteral | |
// SEMI | |
// Comment | |
int y = x * 2; // +2 var + binary | |
// LocalVariableDeclaration | |
// IntegralType | |
// Int | |
// VariableDeclarator | |
// Identifier | |
// EQ | |
// BinaryExpression | |
// Identifier | |
// STAR | |
// DecimalIntegerLiteral | |
// SEMI | |
// Comment | |
IntFunction double = (n) -> n*2; // +3 var + lambda + binary | |
// LocalVariableDeclaration | |
// TypeIdentifier | |
// VariableDeclarator | |
// Identifier | |
// EQ | |
// LambdaExpression | |
// InferredParameters | |
// LPAREN | |
// Identifier | |
// RPAREN | |
// DASHGT | |
// BinaryExpression | |
// Identifier | |
// STAR | |
// DecimalIntegerLiteral | |
// SEMI | |
// Comment | |
int y2 = double(x); // +2 var + paren expression | |
// LocalVariableDeclaration | |
// IntegralType | |
// Int | |
// VariableDeclarator | |
// Identifier | |
// EQ | |
// Error | |
// FloatingPointType | |
// Double | |
// ParenthesizedExpression | |
// LPAREN | |
// Identifier | |
// RPAREN | |
// SEMI | |
// Comment | |
System.out.println("double " + x + " = " + y2); // +4 method + binary x 3 | |
// ExpressionStatement | |
// MethodInvocation | |
// FieldAccess | |
// Identifier | |
// DOT | |
// Identifier | |
// DOT | |
// Identifier | |
// ArgumentList | |
// LPAREN | |
// BinaryExpression | |
// BinaryExpression | |
// BinaryExpression | |
// StringLiteral | |
// PLUS | |
// Identifier | |
// PLUS | |
// StringLiteral | |
// PLUS | |
// Identifier | |
// RPAREN | |
// SEMI | |
// Comment | |
String message = (x % 2) == 0 ? "Evenly done." : "Oddly done."; // +5 lloc : 1 var assignment + ternary + binary + param exp + binary | |
// LocalVariableDeclaration | |
// TypeIdentifier | |
// VariableDeclarator | |
// Identifier | |
// EQ | |
// TernaryExpression | |
// BinaryExpression | |
// ParenthesizedExpression | |
// LPAREN | |
// BinaryExpression | |
// Identifier | |
// PERCENT | |
// DecimalIntegerLiteral | |
// RPAREN | |
// EQEQ | |
// DecimalIntegerLiteral | |
// QMARK | |
// StringLiteral | |
// COLON | |
// StringLiteral | |
// SEMI | |
// Comment | |
Object done = (Runnable) () -> { System.out.println("Done!"); }; // +4 var + cast + lamda + method invoc | |
// LocalVariableDeclaration | |
// TypeIdentifier | |
// VariableDeclarator | |
// Identifier | |
// EQ | |
// CastExpression | |
// LPAREN | |
// TypeIdentifier | |
// RPAREN | |
// LambdaExpression | |
// FormalParameters | |
// LPAREN | |
// RPAREN | |
// DASHGT | |
// Block | |
// LBRACE | |
// ExpressionStatement | |
// MethodInvocation | |
// FieldAccess | |
// Identifier | |
// DOT | |
// Identifier | |
// DOT | |
// Identifier | |
// ArgumentList | |
// LPAREN | |
// StringLiteral | |
// RPAREN | |
// SEMI | |
// RBRACE | |
// SEMI | |
// Comment | |
String s = "string"; // +1 | |
// LocalVariableDeclaration | |
// TypeIdentifier | |
// VariableDeclarator | |
// Identifier | |
// EQ | |
// StringLiteral | |
// SEMI | |
// Comment | |
boolean isS = (s instanceof String); // +3 var assignment + paren exp + instanceof | |
// LocalVariableDeclaration | |
// BooleanType | |
// VariableDeclarator | |
// Identifier | |
// EQ | |
// ParenthesizedExpression | |
// LPAREN | |
// InstanceofExpression | |
// Identifier | |
// Instanceof | |
// TypeIdentifier | |
// RPAREN | |
// SEMI | |
// Comment | |
done.run(); // +1 method invoc | |
// ExpressionStatement | |
// MethodInvocation | |
// Identifier | |
// DOT | |
// Identifier | |
// ArgumentList | |
// LPAREN | |
// RPAREN | |
// SEMI | |
// Comment |
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// Program | |
int max = 100; | |
// LocalVariableDeclaration | |
// IntegralType | |
// Int | |
// VariableDeclarator | |
// Identifier | |
// EQ | |
// DecimalIntegerLiteral | |
// SEMI | |
/* | |
Loop through and print | |
from: 0 | |
to: max | |
*/ | |
// Comment | |
for (int i = 0; i < max; i++) { | |
// ForStatement | |
// For | |
// LPAREN | |
// LocalVariableDeclaration | |
// IntegralType | |
// Int | |
// VariableDeclarator | |
// Identifier | |
// EQ | |
// DecimalIntegerLiteral | |
// SEMI | |
// BinaryExpression | |
// Identifier | |
// LT | |
// Identifier | |
// SEMI | |
// UpdateExpression | |
// Identifier | |
// PLUSPLUS | |
// RPAREN | |
// Block | |
// LBRACE | |
// Print the value | |
// Comment | |
System.out.println(i); | |
// ExpressionStatement | |
// MethodInvocation | |
// FieldAccess | |
// Identifier | |
// DOT | |
// Identifier | |
// DOT | |
// Identifier | |
// ArgumentList | |
// LPAREN | |
// Identifier | |
// RPAREN | |
// SEMI | |
} | |
// RBRACE |
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// Program | |
package com.company; | |
// PackageDeclaration | |
// Package | |
// ScopedIdentifier | |
// Identifier | |
// DOT | |
// Identifier | |
// SEMI | |
/** | |
* The HelloWorldApp class implements an application that | |
* simply prints \"Hello World!\" to standard output. | |
*/ | |
// Comment | |
class HelloWorldApp { | |
// ClassDeclaration | |
// Class | |
// Identifier | |
// ClassBody | |
// LBRACE | |
public void main(String[] args) { | |
// MethodDeclaration | |
// Modifiers | |
// Public | |
// VoidType | |
// Identifier | |
// FormalParameters | |
// LPAREN | |
// FormalParameter | |
// ArrayType | |
// TypeIdentifier | |
// Dimensions | |
// LBRACK | |
// RBRACK | |
// Identifier | |
// RPAREN | |
// Block | |
// LBRACE | |
String message = args.length == 0 ? "Hello empty world" : "Hello world"; // +2 lloc : 1 var assignment + binary exp | |
// LocalVariableDeclaration | |
// TypeIdentifier | |
// VariableDeclarator | |
// Identifier | |
// EQ | |
// TernaryExpression | |
// BinaryExpression | |
// FieldAccess | |
// Identifier | |
// DOT | |
// Identifier | |
// EQEQ | |
// DecimalIntegerLiteral | |
// QMARK | |
// StringLiteral | |
// COLON | |
// StringLiteral | |
// SEMI | |
// Comment | |
System.out.println(message); // Display the string. +1 lloc | |
// ExpressionStatement | |
// MethodInvocation | |
// FieldAccess | |
// Identifier | |
// DOT | |
// Identifier | |
// DOT | |
// Identifier | |
// ArgumentList | |
// LPAREN | |
// Identifier | |
// RPAREN | |
// SEMI | |
// Comment | |
} | |
// RBRACE | |
} | |
// RBRACE |
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// Program | |
int i=0; // +1 | |
// LocalVariableDeclaration | |
// IntegralType | |
// Int | |
// VariableDeclarator | |
// Identifier | |
// EQ | |
// DecimalIntegerLiteral | |
// SEMI | |
// Comment | |
while(i < 10) { // +2 ParenthesizedExpression + BinaryExpression | |
// WhileStatement | |
// While | |
// ParenthesizedExpression | |
// LPAREN | |
// BinaryExpression | |
// Identifier | |
// LT | |
// DecimalIntegerLiteral | |
// RPAREN | |
// Block | |
// LBRACE | |
// Comment | |
i++; // +1 | |
// ExpressionStatement | |
// UpdateExpression | |
// Identifier | |
// PLUSPLUS | |
// SEMI | |
// Comment | |
System.out.println(i); // +1 | |
// ExpressionStatement | |
// MethodInvocation | |
// FieldAccess | |
// Identifier | |
// DOT | |
// Identifier | |
// DOT | |
// Identifier | |
// ArgumentList | |
// LPAREN | |
// Identifier | |
// RPAREN | |
// SEMI | |
// Comment | |
} | |
// RBRACE |
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A note on this version (2). The LLOC counts are wrong. They are based on expression count rather than solely statements.