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tom-weatherhead/thaw-lexical-analyzer

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src/midnight-hack-tokenizer.ts

Summary

Maintainability
F
3 days
Test Coverage

Function getToken has a Cognitive Complexity of 81 (exceeds 5 allowed). Consider refactoring.
Open

    protected getToken(): IToken {
        let result: IToken;
        let startColNum = this.colNum;
        const localLastTokenWasASingleQuote = this.lastTokenWasASingleQuote;
Severity: Minor
Found in src/midnight-hack-tokenizer.ts - About 1 day to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function getToken has 210 lines of code (exceeds 25 allowed). Consider refactoring.
Open

    protected getToken(): IToken {
        let result: IToken;
        let startColNum = this.colNum;
        const localLastTokenWasASingleQuote = this.lastTokenWasASingleQuote;
Severity: Major
Found in src/midnight-hack-tokenizer.ts - About 1 day to fix

    File midnight-hack-tokenizer.ts has 305 lines of code (exceeds 250 allowed). Consider refactoring.
    Open

    // tom-weatherhead/thaw-lexical-analyzer/src/midnight-hack-tokenizer.ts

// The lexical analyzer (tokenizer) implementation corresponding to LexicalAnalyzerSelector.MidnightHack

// The original C# version was a product of the Midnight Coding Club,
    Severity: Minor
    Found in src/midnight-hack-tokenizer.ts - About 3 hrs to fix

      Function constructor has 65 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

          constructor(gs: LanguageSelector) {
        super();

        // This dictionary is used to recognize single-character tokens.
        this.dictCharToTokenType.set('(', LexicalState.tokenLeftBracket);
      Severity: Major
      Found in src/midnight-hack-tokenizer.ts - About 2 hrs to fix

        Function constructor has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.
        Open

            constructor(gs: LanguageSelector) {
        super();

        // This dictionary is used to recognize single-character tokens.
        this.dictCharToTokenType.set('(', LexicalState.tokenLeftBracket);
        Severity: Minor
        Found in src/midnight-hack-tokenizer.ts - About 1 hr to fix

        Cognitive Complexity

        Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

        A method's cognitive complexity is based on a few simple rules:

        • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
        • Code is considered more complex for each "break in the linear flow of the code"
        • Code is considered more complex when "flow breaking structures are nested"

        Further reading

        Avoid deeply nested control flow statements.
        Open

                                if (c === '\n') {
                            throw new TokenizerException(
                                'Quoted literal is not terminated before the end of the line.',
                                this.lineNum,
                                startColNum
        Severity: Major
        Found in src/midnight-hack-tokenizer.ts - About 45 mins to fix

          Avoid deeply nested control flow statements.
          Open

                                  if (this.charNum >= this.str.length) {
                            throw new TokenizerException(
                                'Quoted literal is not terminated before the end of the input.',
                                this.lineNum,
                                startColNum
          Severity: Major
          Found in src/midnight-hack-tokenizer.ts - About 45 mins to fix

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