org.eclipse.xtext.serializer.analysis
Interface IGrammarConstraintProvider

All Known Implementing Classes:

GrammarConstraintProvider

public interface IGrammarConstraintProvider

Based on an Xtext grammar, the IGrammarConstraintProvider provides constraints that the semantic model must comply with. The structure of the constraints is as follows:

 XtextGrammar 
 \- 0..n IConstraintContext (one for each ParserRule and AssignedAction) 
    \- 1..n IConstraint (one for each EClass) 
       \- tree IConstraintElement (one for each relevant Group, Alternative, RuleCall and assigned Keyword)
 

Author:

Moritz Eysholdt - Initial contribution and API

Nested Class Summary

static class	IGrammarConstraintProvider.ConstraintElementProduction
static class	IGrammarConstraintProvider.ConstraintElementType The ConstraintElementType distinguishes different kinds of IGrammarConstraintProvider.IConstraintElement
static interface	IGrammarConstraintProvider.IConstraint One constraint defines all conditions one semantic object must comply with.
static interface	IGrammarConstraintProvider.IConstraintContext A ConstraintContext is defined by a ParserRule or an AssignedAction.
static interface	IGrammarConstraintProvider.IConstraintElement IConstraintElements form a tree that is in fact a view on the grammar's AbstractElements.
static interface	IGrammarConstraintProvider.IFeatureInfo
static class	IGrammarConstraintProvider.RelationalDependencyType

Field Summary

static int

MAX

Method Summary

java.util.List<IGrammarConstraintProvider.IConstraintContext>

getConstraints(Grammar context) Returns all constraints form this grammar.

Field Detail

MAX

static final int MAX

See Also:

Constant Field Values

Method Detail

getConstraints

java.util.List<IGrammarConstraintProvider.IConstraintContext> getConstraints(Grammar context)

Returns all constraints form this grammar. If a constraint belongs to multiple ConstraintContexts, it is important to call this method to ensure there is inly one instance fo this constraint.