Fix Pseudo Modules and Implicit Globals

This skill fixes pseudo module access and implicit global issues that the UI5 linter detects but cannot auto-fix because they require understanding proper module import patterns.

Linter Rules Handled

Rule ID	Message Pattern	This Skill's Action
no-pseudo-modules	Deprecated access of enum pseudo module '...'	Import via library module
no-pseudo-modules	Deprecated access of DataType pseudo module '...'	Import via library module
no-implicit-globals	Access of module '...' not exported by library '...'	Import module directly
no-implicit-globals	OData built-in global symbols must not be used implicitly	Import ODataExpressionAddons

When to Use

Apply this skill when you see linter output like:

MyController.js:5:5 error Deprecated access of enum pseudo module 'sap/ui/core/BarColor'  no-pseudo-modules
MyController.js:8:5 error Deprecated access of DataType pseudo module 'sap/ui/core/CSSSize'  no-pseudo-modules
MyController.js:15:5 error Access of module 'sap/ui/unified/DateRange' not exported by library 'sap/ui/unified/library'  no-implicit-globals
MyView.view.xml:20:5 error OData built-in global symbols must not be used implicitly  no-implicit-globals

Background: Pseudo Modules

In UI5, enums and DataTypes were historically accessed as if they were modules (e.g., sap/ui/core/BarColor). These are "pseudo modules" - they don't exist as real files but are resolved at runtime from the library module. In modern UI5, direct pseudo module imports are deprecated.

Fix Strategy

1. Enum Pseudo Module Access

Problem: Importing enums as direct modules.

// Before - triggers no-pseudo-modules
sap.ui.define([
    "sap/ui/core/mvc/Controller",
    "sap/ui/core/BarColor",           // Pseudo module!
    "sap/m/ListSeparators"            // Pseudo module!
], function(Controller, BarColor, ListSeparators) {
    "use strict";

    return Controller.extend("my.app.controller.Main", {
        onInit: function() {
            var color = BarColor.Positive;
            var separator = ListSeparators.All;
        }
    });
});

Fix Strategy: Import from the library module and access the enum as a property.

// After - import from library
sap.ui.define([
    "sap/ui/core/mvc/Controller",
    "sap/ui/core/library",           // Import library
    "sap/m/library"                  // Import library
], function(Controller, coreLibrary, mLibrary) {
    "use strict";

    // Extract enums from library
    var BarColor = coreLibrary.BarColor;
    var ListSeparators = mLibrary.ListSeparators;

    return Controller.extend("my.app.controller.Main", {
        onInit: function() {
            var color = BarColor.Positive;
            var separator = ListSeparators.All;
        }
    });
});

Common Enum Pseudo Modules and Their Libraries:

Pseudo Module	Library Module	Enum Access
sap/ui/core/BarColor	sap/ui/core/library	coreLibrary.BarColor
sap/ui/core/ValueState	sap/ui/core/library	coreLibrary.ValueState
sap/ui/core/TextDirection	sap/ui/core/library	coreLibrary.TextDirection
sap/ui/core/TextAlign	sap/ui/core/library	coreLibrary.TextAlign
sap/ui/core/MessageType	sap/ui/core/library	coreLibrary.MessageType
sap/m/ListSeparators	sap/m/library	mLibrary.ListSeparators
sap/m/ListMode	sap/m/library	mLibrary.ListMode
sap/m/ListType	sap/m/library	mLibrary.ListType
sap/m/ButtonType	sap/m/library	mLibrary.ButtonType
sap/m/InputType	sap/m/library	mLibrary.InputType

2. DataType Pseudo Module Access

Problem: Importing DataTypes as direct modules.

// Before - triggers no-pseudo-modules
sap.ui.define([
    "sap/ui/core/mvc/Controller",
    "sap/ui/core/CSSSize"            // DataType pseudo module!
], function(Controller, CSSSize) {
    "use strict";

    return Controller.extend("my.app.controller.Main", {
        // Using CSSSize type
    });
});

Fix Strategy: Import from the library module.

// After - import from library
sap.ui.define([
    "sap/ui/core/mvc/Controller",
    "sap/ui/core/library"
], function(Controller, coreLibrary) {
    "use strict";

    var CSSSize = coreLibrary.CSSSize;

    return Controller.extend("my.app.controller.Main", {
        // Using CSSSize type
    });
});

Common DataType Pseudo Modules:

Pseudo Module	Library Module
sap/ui/core/CSSSize	sap/ui/core/library
sap/ui/core/CSSColor	sap/ui/core/library
sap/ui/core/URI	sap/ui/core/library
sap/ui/core/ID	sap/ui/core/library
sap/ui/core/Percentage	sap/ui/core/library

3. Implicit Globals via Library Access

Problem: Accessing modules via library exports that aren't actually exported.

// Before - triggers no-implicit-globals
sap.ui.define([
    "sap/ui/unified/library",
    "sap/ui/core/library"
], function(unifiedLibrary, coreLibrary) {
    "use strict";

    // These modules are NOT exported by the library!
    var DateRange = unifiedLibrary.DateRange;              // Error
    var DOMAttribute = coreLibrary.tmpl.DOMAttribute;      // Error
});

Fix Strategy: Import the module directly.

// After - import modules directly
sap.ui.define([
    "sap/ui/unified/DateRange",           // Direct import
    "sap/ui/core/tmpl/DOMAttribute"       // Direct import
], function(DateRange, DOMAttribute) {
    "use strict";

    // Use directly
});

Rule of Thumb:

• Enums and DataTypes: Access via library module (e.g., library.EnumName)
• Classes/Controls: Import directly (e.g., sap/ui/unified/DateRange)

4. OData Expression Addons

Problem: Using OData built-in functions in expression bindings without importing.

// Before - triggers no-implicit-globals
sap.ui.define([
    "sap/ui/core/mvc/Controller",
    "sap/m/Text"
], function(Controller, Text) {
    "use strict";

    return Controller.extend("my.app.controller.Main", {
        onInit: function() {
            var oText = new Text({
                // Using odata.compare without import!
                text: "{= odata.compare(${/value1}, ${/value2}) }"
            });
        }
    });
});

Fix Strategy: Import ODataExpressionAddons module.

// After - import ODataExpressionAddons
sap.ui.define([
    "sap/ui/core/mvc/Controller",
    "sap/m/Text",
    "sap/ui/model/odata/ODataExpressionAddons"  // Required for odata.* functions
], function(Controller, Text, ODataExpressionAddons) {
    "use strict";

    return Controller.extend("my.app.controller.Main", {
        onInit: function() {
            var oText = new Text({
                // Now works - ODataExpressionAddons is imported
                text: "{= odata.compare(${/value1}, ${/value2}) }"
            });
        }
    });
});

OData Functions Requiring Import:

OData Function	Alternative Direct Module
odata.compare	sap/ui/model/odata/v4/ODataUtils
odata.fillUriTemplate	sap/ui/thirdparty/URITemplate
odata.uriEncode	sap/ui/model/odata/ODataUtils

Note: Importing sap/ui/model/odata/ODataExpressionAddons is the simplest solution as it registers all OData expression functions.

5. OData Functions in XML Views

Problem: Using OData functions in XML view bindings without import.

<!-- Before - triggers no-implicit-globals -->
<mvc:View
    xmlns:mvc="sap.ui.core.mvc"
    xmlns="sap.m">
    <Text text="{= odata.compare(${/price1}, ${/price2}) }" />
</mvc:View>

Fix Strategy: Add core:require for ODataExpressionAddons.

<!-- After - with core:require -->
<mvc:View
    xmlns:mvc="sap.ui.core.mvc"
    xmlns="sap.m"
    xmlns:core="sap.ui.core"
    core:require="{
        ODataAddons: 'sap/ui/model/odata/ODataExpressionAddons'
    }">
    <Text text="{= odata.compare(${/price1}, ${/price2}) }" />
</mvc:View>

Implementation Steps

1. Identify the issue type from the linter message:

   • "enum pseudo module" → Import from library
   • "DataType pseudo module" → Import from library
   • "not exported by library" → Import module directly
   • "OData built-in global" → Import ODataExpressionAddons

2. Determine the correct library for enums/DataTypes:

   • Check the module path prefix (e.g., sap/ui/core/ → sap/ui/core/library)

3. Update imports:

   • Add library import for enums/DataTypes
   • Add direct module import for classes
   • Add ODataExpressionAddons for OData functions

4. Update code references:

   • Extract enum/DataType from library: var EnumName = library.EnumName;
   • Use directly imported modules

5. For XML views: Add core:require when needed

Example Fix Session

Given linter output:

MyController.js:3:5 error Deprecated access of enum pseudo module 'sap/ui/core/ValueState'  no-pseudo-modules
MyController.js:4:5 error Access of module 'sap/ui/unified/DateRange' not exported by library 'sap/ui/unified/library'  no-implicit-globals
MyController.js:25:5 error OData built-in global symbols must not be used implicitly  no-implicit-globals

Before:

sap.ui.define([
    "sap/ui/core/mvc/Controller",
    "sap/ui/core/ValueState",
    "sap/ui/unified/library"
], function(Controller, ValueState, unifiedLibrary) {
    "use strict";

    var DateRange = unifiedLibrary.DateRange;  // Error: not exported

    return Controller.extend("my.app.controller.Main", {
        onInit: function() {
            var state = ValueState.Error;

            var oDateRange = new DateRange({
                startDate: new Date()
            });
        },

        formatComparison: function() {
            return "{= odata.compare(${/val1}, ${/val2}) }";  // Error: no import
        }
    });
});

After:

sap.ui.define([
    "sap/ui/core/mvc/Controller",
    "sap/ui/core/library",                          // For ValueState enum
    "sap/ui/unified/DateRange",                     // Direct import
    "sap/ui/model/odata/ODataExpressionAddons"      // For odata.* functions
], function(Controller, coreLibrary, DateRange, ODataExpressionAddons) {
    "use strict";

    var ValueState = coreLibrary.ValueState;  // Extract from library

    return Controller.extend("my.app.controller.Main", {
        onInit: function() {
            var state = ValueState.Error;

            var oDateRange = new DateRange({
                startDate: new Date()
            });
        },

        formatComparison: function() {
            return "{= odata.compare(${/val1}, ${/val2}) }";  // Now works
        }
    });
});

Notes

• Library modules only export enums and DataTypes, not classes/controls
• Always import controls and classes directly by their full module path
• The ODataExpressionAddons import is needed even though you don't use the variable directly - it registers the functions at load time
• Pseudo module deprecation helps identify improper dependencies and improves load time optimization

Related Skills

• fix-js-globals: For other JavaScript global access patterns (no-globals on JS files — e.g., sap.ui.getCore(), jQuery, sap.ui.controller()), use fix-js-globals
• fix-control-renderer: If pseudo module errors appear in renderer code alongside renderer-specific issues, use fix-control-renderer for the renderer modernization