Traceability Matrix

Each requirement paragraph in the Language Specification, the SC API Reference, and the other chapters of this manual carries a unique identifier, shown as a [sls.…] badge at the end of the paragraph. A test case declares which requirements it verifies by listing their identifiers in //#sls.… comments. This matrix lists every requirement paragraph with the test cases that declare it. Requirements not yet covered by any test are marked ❌. Informative paragraphs — the document conventions (sls.meta.…) and examples — are not listed; the examples are compiled by the doctests test instead.

Tests marked case: are executed test cases from api/slint-sc/tests/cases/, tests marked syntax: are compiler syntax tests from internal/compiler/tests/syntax/slint-sc/.

Coverage: 65 of 90 requirement paragraphs are covered by at least one test.

Slint Language Specification

Source Files

Paragraph	Tests
sls.source.file-extension	❌
sls.source.encoding.utf8	syntax: bom-encoding.slint ↗
sls.source.encoding.bom	syntax: bom-encoding.slint ↗
sls.source.line-terminators	syntax: crlf-line-terminators.slint ↗
sls.source.bare-cr	syntax: crlf-line-terminators.slint ↗
sls.source.whitespace.chars	❌
sls.source.whitespace.collapse	syntax: whitespace.slint ↗
sls.source.comment.line	case: component/with_comments.slint ↗ syntax: comments.slint ↗
sls.source.comment.block	case: component/with_comments.slint ↗ syntax: comments.slint ↗
sls.source.comment.whitespace-equivalent	case: component/with_comments.slint ↗ syntax: comments.slint ↗
sls.source.comment.no-doc-comments	syntax: comments.slint ↗

Lexical Structure

Paragraph	Tests
sls.lex.tokens	❌
sls.lex.identifier.classes	❌
sls.lex.identifier.no-leading-hyphen	syntax: identifier_leading_hyphen.slint ↗ syntax: identifier_leading_hyphen_element_id.slint ↗ syntax: identifier_leading_hyphen_inherits.slint ↗ syntax: identifier_leading_hyphen_property.slint ↗
sls.lex.identifier.normalization	❌
sls.lex.identifier.normalization-example	syntax: identifier_normalization_collision.slint ↗
sls.lex.identifier.canonical-form	syntax: identifier_normalization_collision.slint ↗
sls.lex.contextual-keywords	❌

File Structure

Paragraph	Tests
sls.file.source-file	syntax: source_file.slint ↗
sls.file.source-file.empty	syntax: empty_file.slint ↗
sls.file.top-level-item	syntax: enums.slint ↗ syntax: globals.slint ↗ syntax: source_file.slint ↗ syntax: structs.slint ↗
sls.file.component.definition-forms	❌
sls.file.component.name	❌
sls.file.component.inherits	❌
sls.file.component.body-braces	❌
sls.file.component.body	case: component/nested_rectangles.slint ↗ syntax: bindings.slint ↗ syntax: element_nesting.slint ↗ syntax: for_and_if.slint ↗
sls.file.component.body.empty	case: component/empty.slint ↗
sls.file.element.instantiation-form	case: component/nested_rectangles.slint ↗ syntax: element_nesting.slint ↗
sls.file.element.instantiation-typename	❌
sls.file.element.body	case: component/background_color.slint ↗ case: component/nested_rectangles.slint ↗ syntax: element_nesting.slint ↗
sls.file.element.tree	case: component/nested_rectangles.slint ↗ syntax: element_nesting.slint ↗

Exports

Paragraph	Tests
sls.export.placement	❌
sls.export.default-private	❌
sls.export.forms	❌
sls.export.declaration-site	case: component/empty.slint ↗
sls.export.list	❌
sls.export.rename	❌
sls.export.left-must-exist	syntax: export_specifiers.slint ↗
sls.export.no-duplicates	❌

Properties

Paragraph	Tests
sls.prop.def	❌
sls.prop.decl.form	case: component/properties.slint ↗ syntax: properties.slint ↗
sls.prop.decl.visibility	syntax: properties.slint ↗ syntax: property_protected.slint ↗
sls.prop.decl.in	case: component/properties.slint ↗
sls.prop.decl.out	case: component/properties.slint ↗
sls.prop.decl.in-out	case: component/properties.slint ↗
sls.prop.decl.private	case: component/properties.slint ↗
sls.prop.decl.root-only	syntax: properties.slint ↗
sls.prop.decl.types	syntax: properties.slint ↗
sls.prop.decl.default	case: component/properties.slint ↗

Bindings

Paragraph	Tests
sls.binding.form	case: component/background_color.slint ↗ syntax: color_literals.slint ↗
sls.binding.target-must-exist	syntax: bindings.slint ↗
sls.binding.type	syntax: binding_types.slint ↗

Expressions

Paragraph	Tests
sls.expr.forms	syntax: bindings.slint ↗
sls.expr.color.forms	syntax: color_literals.slint ↗
sls.expr.color.channels	❌
sls.expr.color.short-forms	❌
sls.expr.color.type	❌
sls.expr.length.form	case: component/rectangle_position.slint ↗ syntax: length_literal_space.slint ↗ syntax: units.slint ↗
sls.expr.length.integral	syntax: units.slint ↗
sls.expr.length.px-only	syntax: units.slint ↗
sls.expr.length.type	case: component/rectangle_position.slint ↗

Types

Paragraph	Tests
sls.type.kinds	❌
sls.type.color	❌
sls.type.length	case: component/properties.slint ↗ case: component/rectangle_position.slint ↗
sls.type.brush	case: component/rectangle_position.slint ↗
sls.type.conversions	syntax: binding_types.slint ↗
sls.type.convert.color-to-brush	case: component/rectangle_position.slint ↗ syntax: binding_types.slint ↗

Geometry

Paragraph	Tests
sls.geom.properties	syntax: units.slint ↗
sls.geom.relative	case: component/rectangle_nesting.slint ↗
sls.geom.window.root	❌
sls.geom.window	syntax: elements.slint ↗
sls.geom.default-position	case: component/rectangle_centered.slint ↗ case: component/rectangle_nesting.slint ↗
sls.geom.default-size	case: component/rectangle_nesting.slint ↗

SC API Reference

Rectangle

Paragraph	Tests
sls.ref.rectangle.background	case: component/rectangle_position.slint ↗
sls.ref.rectangle.empty	case: component/rectangle_position.slint ↗

Window

Paragraph	Tests
sls.ref.window.background	case: component/rectangle_position.slint ↗

Safety Manual

Generated Code

Paragraph	Tests
sls.gen.component	case: component/empty.slint ↗
sls.gen.window-root	syntax: window_root.slint ↗
sls.gen.new	case: component/empty.slint ↗
sls.gen.render-rgb8	case: component/window_background.slint ↗
sls.gen.render-error	case: component/window_background.slint ↗
sls.gen.prop.field	❌
sls.gen.prop.names	case: component/properties.slint ↗
sls.gen.prop.get	case: component/properties.slint ↗
sls.gen.prop.set	case: component/properties.slint ↗
sls.gen.prop.types	case: component/properties.slint ↗

Rendering

Paragraph	Tests
sls.paint.model	case: component/rectangle_nesting.slint ↗ case: component/rectangle_position.slint ↗
sls.paint.order	case: component/rectangle_nesting.slint ↗
sls.paint.clip	case: component/rectangle_nesting.slint ↗ case: component/rectangle_wider_than_window.slint ↗
sls.paint.no-parent-clip	case: component/rectangle_nesting.slint ↗