kawa.lang
Class Syntax

java.lang.Object
  kawa.lang.Syntax

All Implemented Interfaces:

Named, Printable

Direct Known Subclasses:

AutoloadSyntax, begin, constant_fold, defcustom, defgroup, define, define_alias, define_autoload, define_class, define_member_alias, define_syntax, define_unit, define_variable, DefineNamespace, defun, defvar, export, fluid_let, function, Lambda, let, let_syntax, location, Macro, module_compile_options, module_extends, module_implements, module_name, module_static, object, prim_method, prog1, Quote, require, SaveExcursion, set_b, setq, syntax_case, syntax_error, syntax_rules, thisRef, UnwindProtect, While, with_compile_options

public abstract class Syntax
extends java.lang.Object
implements Printable, Named

Abstract class for "syntax" objects. Builtins and macros are instances of this class.

Constructor Summary

Syntax()

Syntax(java.lang.Object name)

Method Summary

java.lang.String	getName()
java.lang.Object	getSymbol()
void	print(Consumer out)
Expression	rewrite(java.lang.Object obj, Translator tr) Re-write an expression that is an "application" of this Syntax object.
Expression	rewriteForm(java.lang.Object form, Translator tr)
Expression	rewriteForm(Pair form, Translator tr)
boolean	scanForDefinitions(Pair st, java.util.Vector forms, ScopeExp defs, Translator tr) Check if a statement is a definition, for initial pass.
void	scanForm(Pair st, ScopeExp defs, Translator tr)
void	setName(java.lang.Object name)
void	setName(java.lang.String name)

Methods inherited from class java.lang.Object

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

Constructor Detail

Syntax

public Syntax()

Syntax

public Syntax(java.lang.Object name)

Method Detail

getName

public final java.lang.String getName()

Specified by:

getName in interface Named

getSymbol

public java.lang.Object getSymbol()

Specified by:

getSymbol in interface Named

setName

public void setName(java.lang.Object name)

setName

public void setName(java.lang.String name)

Specified by:

setName in interface Named

rewrite

public Expression rewrite(java.lang.Object obj,
                          Translator tr)

Re-write an expression that is an "application" of this Syntax object.

Parameters:

obj - the arguments to this "application" (i.e. the cdr of the macro/builtin invokation)

tr - the Translator that provides context

Returns:

the re-written expression

rewriteForm

public Expression rewriteForm(java.lang.Object form,
                              Translator tr)

rewriteForm

public Expression rewriteForm(Pair form,
                              Translator tr)

scanForm

public void scanForm(Pair st,
                     ScopeExp defs,
                     Translator tr)

scanForDefinitions

public boolean scanForDefinitions(Pair st,
                                  java.util.Vector forms,
                                  ScopeExp defs,
                                  Translator tr)

Check if a statement is a definition, for initial pass. Semi-deprecated - should convert calls to use scanForm.

Parameters:

st - the statement to check

forms - where to append the (possibly-modified) statement

defs - where to add Declarations for found definitions

tr - the compilation state

Returns:

true on success

print

public void print(Consumer out)

Specified by:

print in interface Printable