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43 lines
1.2 KiB
43 lines
1.2 KiB
/**
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* @fileoverview Rule to flag or require global strict mode.
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* @author Nicholas C. Zakas
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*/
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"use strict";
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//------------------------------------------------------------------------------
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// Rule Definition
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//------------------------------------------------------------------------------
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module.exports = function(context) {
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var mode = context.options[0];
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if (mode === "always") {
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return {
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"Program": function(node) {
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if (node.body.length > 0) {
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var statement = node.body[0];
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if (!(statement.type === "ExpressionStatement" && statement.expression.value === "use strict")) {
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context.report(node, "Use the global form of \"use strict\".");
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}
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}
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}
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};
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} else { // mode = "never"
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return {
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"ExpressionStatement": function(node) {
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var parent = context.getAncestors().pop();
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if (node.expression.value === "use strict" && parent.type === "Program") {
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context.report(node, "Use the function form of \"use strict\".");
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}
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}
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};
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}
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};
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