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Class espresso.util.SymbolTable

java.lang.Object
   |
   +----java.util.Dictionary
           |
           +----java.util.Hashtable
                   |
                   +----espresso.util.SymbolTable

public class SymbolTable

extends Hashtable

NUMBER_METHODS

SymbolTable()

SymbolTable(int, float)

addField(Symbol, FieldDeclarationNode)

Adds a field name to the symbol table.

addFormal(Symbol, FormalParameterNode)

Adds a formal param to the symbol table.

addLabel(Symbol, LabeledStatementNode)

Adds a statement label to the symbol table.

addLocal(Symbol, LocalVarDeclarationNode)

Adds a local var to the symbol table.

addMethod(Symbol, MethodDeclarationNode)

Adds a method name to the symbol table.

addPackage(Symbol, CompilationUnitNode)

Adds a package declaration to the symbol table.

addPrimop(Symbol, MethodType)

Adds a primop name to the symbol table.

addType(Symbol, TypeDeclarationNode)

Adds a class or an interface name to the symbol table.

lookupField(Symbol)

Looks up a field declaration in the symbol table.

lookupFormal(Symbol)

Looks up a formal parameter in the symbol table.

lookupLabel(Symbol)

Looks up a statement label in the symbol table.

lookupLocal(Symbol)

Looks up a local var in the symbol table.

lookupMethod(Symbol)

Looks up a method declaration in the symbol table.

lookupPackage(Symbol)

Looks up a package declaration in the symbol table.

lookupPrimop(Symbol)

Looks up a primop in the symbol table.

lookupType(Symbol)

Looks up a class or interface declaration in the symbol table.

 static final int NUMBER_METHODS

 public SymbolTable()

 public SymbolTable(int size,
                    float factor)

 public CompilationUnitNode addPackage(Symbol name,
                                       CompilationUnitNode node)

Adds a package declaration to the symbol table. The name should be fully qualified.

 public CompilationUnitNode lookupPackage(Symbol name)

Looks up a package declaration in the symbol table. If the name is not present or does not correspond to a package null is returned.

 public TypeDeclarationNode addType(Symbol name,
                                    TypeDeclarationNode node)

Adds a class or an interface name to the symbol table. Names should be fully qualified.

 public TypeDeclarationNode lookupType(Symbol name)

Looks up a class or interface declaration in the symbol table. If the name is not present or does not correspond to a class or an interface then null is returned.

 public FieldDeclarationNode addField(Symbol name,
                                      FieldDeclarationNode node)

Adds a field name to the symbol table. Names should be fully qualified. A forward declaration may be resolved.

 public FieldDeclarationNode lookupField(Symbol name)

Looks up a field declaration in the symbol table. If the name is not present or does not correspond to a field, null is returned.

 public Vector addMethod(Symbol name,
                         MethodDeclarationNode node)

Adds a method name to the symbol table. Names should be fully qualified. A key is built by appending "()" to the name. A vector is kept for each name (method overloading).

 public Vector lookupMethod(Symbol name)

Looks up a method declaration in the symbol table. A key is built by appending "()" to the name. If the name is not present or does not correspond to a method, null is returned.

 public FormalParameterNode addFormal(Symbol name,
                                      FormalParameterNode node)

Adds a formal param to the symbol table. A name must be qualified with the method (that also includes package and class) and a unique index identifying outermost scope.

 public FormalParameterNode lookupFormal(Symbol name)

Looks up a formal parameter in the symbol table. If the name is not present or does not correspond to a field, null is returned.

 public LocalVarDeclarationNode addLocal(Symbol name,
                                         LocalVarDeclarationNode node)

Adds a local var to the symbol table. A name must be qualified with the method (that also includes package and class) and a unique index identifying the scope.

 public LocalVarDeclarationNode lookupLocal(Symbol name)

Looks up a local var in the symbol table. If the name is not present or does not correspond to a field, null is returned.

 public Vector addPrimop(Symbol name,
                         MethodType mtype)

Adds a primop name to the symbol table. A vector is kept for each name (overloading).

 public Vector lookupPrimop(Symbol name)

Looks up a primop in the symbol table. If the name is not present or does not correspond to a primop, null is returned.

 public LabeledStatementNode addLabel(Symbol name,
                                      LabeledStatementNode node)

Adds a statement label to the symbol table. Appends a ":" to avoid name clashes.

 public LabeledStatementNode lookupLabel(Symbol name)

Looks up a statement label in the symbol table. Appends ":" to the name before searching.

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