org.millscript.millscript.syntax
Class ProcedureSyntax

java.lang.Object
  org.millscript.millscript.syntax.Syntax
      org.millscript.millscript.syntax.PrefixSyntax
          org.millscript.millscript.syntax.ProcedureSyntax

All Implemented Interfaces:

PrefixSyntaxInterface

Direct Known Subclasses:

FunctionSyntax, FunSyntax, MemoSyntax, MethodOverrideSyntax, MethodSyntax, SpiceClassInitSyntax

public abstract class ProcedureSyntax
extends PrefixSyntax

This class is a convenience for implementing procedure synyax elements. e.g. functions, fun's, methods and memoes.

Constructor Summary

protected

ProcedureSyntax(java.lang.String closing, boolean nameNeeded) Creates a proceedure syntax parser instance, with the specified closing character sequence.

Method Summary

Expr	prefix(java.lang.String sym, Parser parser) Parse the syntax for the specified symbol, using the specified Parser.
abstract Expr	procedure(FunctionHeader header, Expr body, Parser parser) Returns the expression for this type of proceedure syntax.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ProcedureSyntax

protected ProcedureSyntax(java.lang.String closing,
                          boolean nameNeeded)

Creates a proceedure syntax parser instance, with the specified closing character sequence.

Parameters:

closing - the closing character seqeunce for this procedure syntax parser instance

nameNeeded - a boolean indicating if this function must have a name or not.

Method Detail

prefix

public Expr prefix(java.lang.String sym,
                   Parser parser)

Description copied from interface: PrefixSyntaxInterface

Parse the syntax for the specified symbol, using the specified Parser. The symbol is specified because different symbols may share the same syntax, but result in slightly different expressions. The Parser is supplied as the source to parse from.

Specified by:

prefix in interface PrefixSyntaxInterface

Specified by:

prefix in class PrefixSyntax

Parameters:

sym - the symbol to parse this syntax for

parser - Parser to parse from, i.e. the source to parse from

Returns:

an expression for this syntax

See Also:

PrefixSyntaxInterface.prefix(java.lang.String, org.millscript.millscript.syntax.Parser)

procedure

public abstract Expr procedure(FunctionHeader header,
                               Expr body,
                               Parser parser)

Returns the expression for this type of proceedure syntax.

Parameters:

header - the procedure header

body - the procedure body

parser - the current parser

Returns:

an Expr for this procedure