AST::ClosureDecl Struct Reference

A closure declaration. More...

#include <ast.hh>

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Public Member Functions
Obj	interpretClosure (Interpreter::Context &c, MysoreScript::Closure *self, Obj *args)
	Interprets the closure in the current context. More...
Obj	interpretMethod (Interpreter::Context &c, MysoreScript::Method *mth, Obj self, MysoreScript::Selector sel, Obj *args)
	Interprets the closure, assuming that it is a method. More...
Public Member Functions inherited from AST::Expression
virtual bool	isConstantExpression ()
	Returns true if the expression is constant and therefore doesn't need interpreting every time. More...
Obj	evaluate (Interpreter::Context &c)
	Evaluate the expression, caching the result if it's a constant expression. More...
void	interpret (Interpreter::Context &c) override final
	Interpret this expression as if it were a statement. More...
void	compile (Compiler::Context &c) override final
	Compile this expression as if it were a statement. More...

Public Attributes
ASTChild< Identifier >	name
	The name of this closure. More...
ASTPtr< ParamList >	parameters
	The parameter list. More...
ASTPtr< Statements >	body
	The statements that make up the body of the closure. More...

Protected Member Functions
Obj	evaluateExpr (Interpreter::Context &c) override
	Evaluate this closure, returning the closure object representing it. More...
llvm::Value *	compileExpression (Compiler::Context &c) override
	Compile the closure declaration. More...

Additional Inherited Members
Protected Attributes inherited from AST::Expression
Interpreter::Value	cache
	Cached result for constant expression. More...

Detailed Description

A closure declaration.

Closures in MysoreScript represent methods, functions, or true closures.

Definition at line 473 of file ast.hh.

Member Function Documentation

compileExpression()

Value * ClosureDecl::compileExpression ( Compiler::Context &  c )

overrideprotectedvirtual

Compile the closure declaration.

This does not compile the closure itself, it merely generates code that constructs a Closure object with the correct bound variables.

Implements AST::Expression.

Definition at line 377 of file compiler.cc.

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evaluateExpr()

Obj ClosureDecl::evaluateExpr ( Interpreter::Context &  c )

overrideprotectedvirtual

Evaluate this closure, returning the closure object representing it.

This is not invoked for methods, because classes are responsible for creating the method table entries corresponding to their methods.

Implements AST::Expression.

Definition at line 492 of file interpreter.cc.

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interpretClosure()

Obj ClosureDecl::interpretClosure	(	Interpreter::Context &	c,
		MysoreScript::Closure *	self,
		Obj *	args
	)

Interprets the closure in the current context.

When closures are created, one of their instance variables is the AST for that closure, the remaining fields are the bound variables

Definition at line 571 of file interpreter.cc.

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interpretMethod()

Obj ClosureDecl::interpretMethod	(	Interpreter::Context &	c,
		MysoreScript::Method *	mth,
		Obj	self,
		MysoreScript::Selector	sel,
		Obj *	args
	)

Interprets the closure, assuming that it is a method.

The AST is stored in the class, so can be looked up when the method must be executed.

Definition at line 521 of file interpreter.cc.

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Member Data Documentation

body

ASTPtr<Statements> AST::ClosureDecl::body

The statements that make up the body of the closure.

Definition at line 486 of file ast.hh.

name

ASTChild<Identifier> AST::ClosureDecl::name

The name of this closure.

Definition at line 478 of file ast.hh.

parameters

ASTPtr<ParamList> AST::ClosureDecl::parameters

The parameter list.

Definition at line 482 of file ast.hh.

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The documentation for this struct was generated from the following files:

• ast.hh
• interpreter.cc
• compiler.cc