Allow loaders to access the mode

lib/NormalModule.js

@@ -212,6 +212,7 @@ class NormalModule extends Module {
 			rootContext: options.context,
 			webpack: true,
 			sourceMap: !!this.useSourceMap,
+			mode: options.mode,
 			_module: this,
 			_compilation: compilation,
 			_compiler: compilation.compiler,

test/configCases/loaders/mode-default/index.js

@@ -0,0 +1,3 @@
+it("provides mode to loaders when the option is omitted", function() {
+	expect(require("./a")).toBe("production");
+});

test/configCases/loaders/mode-default/loader.js

@@ -0,0 +1,3 @@
+module.exports = function(source) {
+	return `module.exports = "${this.mode}";`;
+};

test/configCases/loaders/mode-default/webpack.config.js

@@ -0,0 +1,10 @@
+module.exports = {
+	module: {
+		rules: [
+			{
+				test: /a\.js$/,
+				use: "./loader"
+			}
+		]
+	}
+};

test/configCases/loaders/mode-development/index.js

@@ -0,0 +1,3 @@
+it("provides mode to loaders when the option is 'development'", function() {
+	expect(require("./a")).toBe("development");
+});

test/configCases/loaders/mode-development/loader.js

@@ -0,0 +1,3 @@
+module.exports = function(source) {
+	return `module.exports = "${this.mode}";`;
+};

test/configCases/loaders/mode-development/webpack.config.js

@@ -0,0 +1,11 @@
+module.exports = {
+	mode: "development",
+	module: {
+		rules: [
+			{
+				test: /a\.js$/,
+				use: "./loader"
+			}
+		]
+	}
+};

test/configCases/loaders/mode-none/index.js

@@ -0,0 +1,3 @@
+it("provides mode to loaders when the option is 'none'", function() {
+	expect(require("./a")).toBe("none");
+});

test/configCases/loaders/mode-none/loader.js

@@ -0,0 +1,3 @@
+module.exports = function(source) {
+	return `module.exports = "${this.mode}";`;
+};

test/configCases/loaders/mode-none/webpack.config.js

@@ -0,0 +1,11 @@
+module.exports = {
+	mode: "none",
+	module: {
+		rules: [
+			{
+				test: /a\.js$/,
+				use: "./loader"
+			}
+		]
+	}
+};

test/configCases/loaders/mode-production/index.js

@@ -0,0 +1,3 @@
+it("provides mode to loaders when the option is 'production'", function() {
+	expect(require("./a")).toBe("production");
+});

test/configCases/loaders/mode-production/loader.js

@@ -0,0 +1,3 @@
+module.exports = function(source) {
+	return `module.exports = "${this.mode}";`;
+};

test/configCases/loaders/mode-production/webpack.config.js

@@ -0,0 +1,11 @@
+module.exports = {
+	mode: "production",
+	module: {
+		rules: [
+			{
+				test: /a\.js$/,
+				use: "./loader"
+			}
+		]
+	}
+};