dcodeIO/webassembly

File `build.js` has 609 lines of code (exceeds 250 allowed). Consider refactoring.
Open

// This is a custom build script that compiles a statically linkable object file of the underlying
// libc (musl) and this package's functionality to LLVM bitcode.

// This is super experimental, doesn't cover all of musl and will probably require a lot of tweaks
// in the future. If you need something special from libc, feel free to send a PR, but beware that

Found in lib/build.js - About 1 day to fix

Function `main` has 145 lines of code (exceeds 25 allowed). Consider refactoring.
Open

exports.main = (argv, callback) => {

    if (!callback)
        callback = util.defaultCallback;

Found in cli/compiler.js - About 5 hrs to fix

Similar blocks of code found in 2 locations. Consider refactoring.
Open

    if (files.length !== 1) {
        util.printLogo("Assembler");
        process.stderr.write([
            chalk.bold.white("Assembles WebAssembly text format to a module."),
            "",

Found in cli/assembler.js and 1 other location - About 5 hrs to fix

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cli/linker.js on lines 27..47

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 136.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Don't Repeat Yourself on the C2 Wiki
Duplicated Code on SourceMaking
Refactoring: Improving the Design of Existing Code by Martin Fowler. Duplicated Code, p76

Similar blocks of code found in 2 locations. Consider refactoring.
Open

    if (files.length !== 1) {
        util.printLogo("Linker");
        process.stderr.write([
            chalk.bold.white("Links multiple WebAssembly modules to one."),
            "",

Found in cli/linker.js and 1 other location - About 5 hrs to fix

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cli/assembler.js on lines 25..45

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 136.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Don't Repeat Yourself on the C2 Wiki
Duplicated Code on SourceMaking
Refactoring: Improving the Design of Existing Code by Martin Fowler. Duplicated Code, p76

Function `load` has 92 lines of code (exceeds 25 allowed). Consider refactoring.
Open

function load(file, options) {

    /**
     * Options as used by {@link load}.
     * @interface LoadOptions

Found in src/index.js - About 3 hrs to fix

Function `main` has a Cognitive Complexity of 24 (exceeds 5 allowed). Consider refactoring.
Open

exports.main = (argv, callback) => {

    if (!callback)
        callback = util.defaultCallback;

Found in cli/compiler.js - About 3 hrs to fix

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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 `load` has a Cognitive Complexity of 16 (exceeds 5 allowed). Consider refactoring.
Open

function load(file, options) {

    /**
     * Options as used by {@link load}.
     * @interface LoadOptions

Found in src/index.js - About 2 hrs to fix

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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 `main` has 52 lines of code (exceeds 25 allowed). Consider refactoring.
Open

exports.main = (argv, callback) => {

    if (!callback)
        callback = util.defaultCallback;

Found in cli/assembler.js - About 2 hrs to fix

Function `main` has 52 lines of code (exceeds 25 allowed). Consider refactoring.
Open

exports.main = (argv, callback) => {

    if (!callback)
        callback = util.defaultCallback;

Found in cli/linker.js - About 2 hrs to fix

Function `main` has 47 lines of code (exceeds 25 allowed). Consider refactoring.
Open

exports.main = (argv, callback) => {

    if (!callback)
        callback = util.defaultCallback;

Found in cli/disassembler.js - About 1 hr to fix

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

exports.main = (argv, callback) => {

    if (!callback)
        callback = util.defaultCallback;

Found in cli/linker.js - About 1 hr to fix

Read up
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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 `main` has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.
Open

exports.main = (argv, callback) => {

    if (!callback)
        callback = util.defaultCallback;

Found in cli/assembler.js - About 1 hr to fix

Read up
Read up

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 `run` has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.
Open

exports.run = function run(cmd, argv, options) {
    if (!argv)
        argv = [];
    if (!options)
        options = {};

Found in cli/util.js - About 1 hr to fix

Read up
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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 `run` has 32 lines of code (exceeds 25 allowed). Consider refactoring.
Open

exports.run = function run(cmd, argv, options) {
    if (!argv)
        argv = [];
    if (!options)
        options = {};

Found in cli/util.js - About 1 hr to fix

Function `download` has 29 lines of code (exceeds 25 allowed). Consider refactoring.
Open

function download(callback) {
    var req = https.get("https://github.com/dcodeIO/webassembly/releases/download/" + pkg.tools + "/" + archive, res => {
        if (res.statusCode !== 200) {
            req.abort();
            callback(Error("no prebuilt binaries available for " + platform + " (code " + res.statusCode + ")"));

Found in scripts/setup.js - About 1 hr to fix

Function `main` has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.
Open

exports.main = (argv, callback) => {

    if (!callback)
        callback = util.defaultCallback;

Found in cli/disassembler.js - About 1 hr to fix

Read up
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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 `req` has 27 lines of code (exceeds 25 allowed). Consider refactoring.
Open

    var req = https.get("https://github.com/dcodeIO/webassembly/releases/download/" + pkg.tools + "/" + archive, res => {
        if (res.statusCode !== 200) {
            req.abort();
            callback(Error("no prebuilt binaries available for " + platform + " (code " + res.statusCode + ")"));
            return;

Found in scripts/setup.js - About 1 hr to fix

Identical blocks of code found in 2 locations. Consider refactoring.
Open

     argv = minimist(argv, {
        alias: {
            out: "o",
            debug: "d",
            quiet: "q",

Found in cli/assembler.js and 1 other location - About 55 mins to fix

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cli/linker.js on lines 13..22

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 54.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Don't Repeat Yourself on the C2 Wiki
Duplicated Code on SourceMaking
Refactoring: Improving the Design of Existing Code by Martin Fowler. Duplicated Code, p76

Identical blocks of code found in 2 locations. Consider refactoring.
Open

     argv = minimist(argv, {
        alias: {
            out: "o",
            debug: "d",
            quiet: "q",

Found in cli/linker.js and 1 other location - About 55 mins to fix

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cli/assembler.js on lines 13..22

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 54.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Don't Repeat Yourself on the C2 Wiki
Duplicated Code on SourceMaking
Refactoring: Improving the Design of Existing Code by Martin Fowler. Duplicated Code, p76

Identical blocks of code found in 3 locations. Consider refactoring.
Open

    var file = path.normalize(files[0]),
        out = argv.out && path.normalize(argv.out) || undefined;

Found in cli/disassembler.js and 2 other locations - About 40 mins to fix

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cli/assembler.js on lines 54..55

cli/compiler.js on lines 81..82

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 48.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Don't Repeat Yourself on the C2 Wiki
Duplicated Code on SourceMaking
Refactoring: Improving the Design of Existing Code by Martin Fowler. Duplicated Code, p76