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Implement ES2015 class feature (part II.) (#2439)

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This patch is the second milestone of the implementation of this new language element.

Supported:
 - Single class inheritance
 - Functionality of 'super' keyword
 - Implicit constructor in class heritage
 - Specific behaviour while extending with the built-in 'Array' or '%TypedArray%' object
 - Abstract subclasses (Mix-ins)

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
This commit is contained in:
Robert Fancsik
2018-10-25 16:00:48 +02:00
committed by Akos Kiss
parent e0e6363f85
commit d1860d0e34
54 changed files with 2543 additions and 199 deletions
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jerry-core/vm/vm.h
+32 -1
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@@ -209,6 +209,21 @@ typedef enum
VM_OC_FINALLY, /**< finally */
VM_OC_CONTEXT_END, /**< context end */
VM_OC_JUMP_AND_EXIT_CONTEXT, /**< jump and exit context */
#ifndef CONFIG_DISABLE_ES2015_CLASS
VM_OC_CLASS_HERITAGE, /**< create a super class context */
VM_OC_CLASS_INHERITANCE, /**< inherit properties from the 'super' class */
VM_OC_PUSH_CLASS_CONSTRUCTOR, /**< push class constructor */
VM_OC_SET_CLASS_CONSTRUCTOR, /**< set class constructor to the given function literal */
VM_OC_PUSH_IMPL_CONSTRUCTOR, /**< create implicit class constructor */
VM_OC_CLASS_EXPR_CONTEXT_END, /**< class expression heritage context end */
VM_OC_CLASS_EVAL, /**< eval inside a class */
VM_OC_SUPER_CALL, /**< call the 'super' constructor */
VM_OC_SUPER_PROP_REFERENCE, /**< resolve super property reference */
VM_OC_PUSH_SUPER, /**< push resolvable super reference */
VM_OC_PUSH_CONSTRUCTOR_SUPER, /**< push 'super' inside a class constructor */
VM_OC_PUSH_CONSTRUCTOR_THIS, /**< push 'this' inside a class constructor */
VM_OC_CONSTRUCTOR_RET, /**< explicit return from a class constructor */
#endif /* !CONFIG_DISABLE_ES2015 */
#ifdef JERRY_DEBUGGER
VM_OC_BREAKPOINT_ENABLED, /**< enabled breakpoint for debugger */
VM_OC_BREAKPOINT_DISABLED, /**< disabled breakpoint for debugger */
@@ -217,7 +232,7 @@ typedef enum
VM_OC_RESOURCE_NAME, /**< resource name of the current function */
VM_OC_LINE, /**< line number of the next statement */
#endif /* JERRY_ENABLE_LINE_INFO */
VM_OC_NONE, /**< a special opcode for */
VM_OC_NONE, /**< a special opcode for unsupported byte codes */
} vm_oc_types;
/**
@@ -236,6 +251,21 @@ typedef enum
VM_OC_RESOURCE_NAME = VM_OC_NONE, /**< resource name of the current function is unused */
VM_OC_LINE = VM_OC_NONE, /**< line number of the next statement is unused */
#endif /* !JERRY_ENABLE_LINE_INFO */
#ifdef CONFIG_DISABLE_ES2015_CLASS
VM_OC_CLASS_HERITAGE = VM_OC_NONE, /**< create a super class context */
VM_OC_CLASS_INHERITANCE = VM_OC_NONE, /**< inherit properties from the 'super' class */
VM_OC_PUSH_CLASS_CONSTRUCTOR = VM_OC_NONE, /**< push class constructor */
VM_OC_SET_CLASS_CONSTRUCTOR = VM_OC_NONE, /**< set class constructor to the given function literal */
VM_OC_PUSH_IMPL_CONSTRUCTOR = VM_OC_NONE, /**< create implicit class constructor */
VM_OC_CLASS_EXPR_CONTEXT_END = VM_OC_NONE, /**< class expression heritage context end */
VM_OC_CLASS_EVAL = VM_OC_NONE, /**< eval inside a class */
VM_OC_SUPER_CALL = VM_OC_NONE, /**< call the 'super' constructor */
VM_OC_SUPER_PROP_REFERENCE = VM_OC_NONE, /**< resolve super property reference */
VM_OC_PUSH_SUPER = VM_OC_NONE, /**< push resolvable super reference */
VM_OC_PUSH_CONSTRUCTOR_SUPER = VM_OC_NONE, /**< push 'super' inside a class constructor */
VM_OC_PUSH_CONSTRUCTOR_THIS = VM_OC_NONE, /**< push 'this' inside a class constructor */
VM_OC_CONSTRUCTOR_RET = VM_OC_NONE, /**< explicit return from a class constructor */
#endif /* CONFIG_DISABLE_ES2015 */
VM_OC_UNUSED = VM_OC_NONE /**< placeholder if the list is empty */
} vm_oc_unused_types;
@@ -315,6 +345,7 @@ typedef enum
{
VM_NO_EXEC_OP, /**< do nothing */
VM_EXEC_CALL, /**< invoke a function */
VM_EXEC_SUPER_CALL, /**< invoke a function through 'super' keyword */
VM_EXEC_CONSTRUCT, /**< construct a new object */
} vm_call_operation;