/
Expr.hx
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Expr.hx
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/*
* Copyright (C)2005-2019 Haxe Foundation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
package haxe.macro;
#if (macro && !doc_gen)
@:coreType abstract Position {}
#else
/**
Represents a position in a file.
**/
typedef Position = {
/**
Reference to the filename.
**/
var file:String;
/**
Position of the first character.
**/
var min:Int;
/**
Position of the last character.
**/
var max:Int;
}
#end
enum StringLiteralKind {
DoubleQuotes;
SingleQuotes;
}
/**
Represents a constant.
@see https://haxe.org/manual/expression-constants.html
**/
enum Constant {
/**
Represents an integer literal.
**/
CInt(v:String, ?s:String);
/**
Represents a float literal.
**/
CFloat(f:String, ?s:String);
/**
Represents a string literal.
**/
CString(s:String, ?kind:StringLiteralKind);
/**
Represents an identifier.
**/
CIdent(s:String);
/**
Represents a regular expression literal.
Example: `~/haxe/i`
- The first argument `haxe` is a string with regular expression pattern.
- The second argument `i` is a string with regular expression flags.
@see https://haxe.org/manual/std-regex.html
**/
CRegexp(r:String, opt:String);
}
/**
A binary operator.
@see https://haxe.org/manual/types-numeric-operators.html
**/
enum Binop {
/**
`+`
**/
OpAdd;
/**
`*`
**/
OpMult;
/**
`/`
**/
OpDiv;
/**
`-`
**/
OpSub;
/**
`=`
**/
OpAssign;
/**
`==`
**/
OpEq;
/**
`!=`
**/
OpNotEq;
/**
`>`
**/
OpGt;
/**
`>=`
**/
OpGte;
/**
`<`
**/
OpLt;
/**
`<=`
**/
OpLte;
/**
`&`
**/
OpAnd;
/**
`|`
**/
OpOr;
/**
`^`
**/
OpXor;
/**
`&&`
**/
OpBoolAnd;
/**
`||`
**/
OpBoolOr;
/**
`<<`
**/
OpShl;
/**
`>>`
**/
OpShr;
/**
`>>>`
**/
OpUShr;
/**
`%`
**/
OpMod;
/**
`+=` `-=` `/=` `*=` `<<=` `>>=` `>>>=` `|=` `&=` `^=` `%=`
**/
OpAssignOp(op:Binop);
/**
`...`
**/
OpInterval;
/**
`=>`
**/
OpArrow;
/**
`in`
**/
OpIn;
/**
`??`
**/
OpNullCoal;
}
/**
A unary operator.
@see https://haxe.org/manual/types-numeric-operators.html
**/
enum Unop {
/**
`++`
**/
OpIncrement;
/**
`--`
**/
OpDecrement;
/**
`!`
**/
OpNot;
/**
`-`
**/
OpNeg;
/**
`~`
**/
OpNegBits;
/**
`...`
**/
OpSpread;
}
enum EFieldKind {
Normal;
Safe;
}
/**
Represents a node in the AST.
@see https://haxe.org/manual/macro-reification-expression.html
**/
typedef Expr = {
/**
The expression kind.
**/
var expr:ExprDef;
/**
The position of the expression.
**/
var pos:Position;
}
/**
Represents a AST node identical to `Expr`, but it allows constraining the
type of accepted expressions.
@see https://haxe.org/manual/macro-ExprOf.html
**/
typedef ExprOf<T> = Expr;
/**
Represents a switch case.
@see https://haxe.org/manual/expression-switch.html
**/
typedef Case = {
/**
The value expressions of the case.
**/
var values:Array<Expr>;
/**
The optional guard expressions of the case, if available.
**/
var ?guard:Expr;
/**
The expression of the case, if available.
**/
var ?expr:Expr;
}
/**
Represents a variable in the AST.
@see https://haxe.org/manual/expression-var.html
**/
typedef Var = {
/**
The name of the variable.
**/
var name:String;
/**
The position of the variable name.
**/
var ?namePos:Position;
/**
The type-hint of the variable, if available.
**/
var ?type:ComplexType;
/**
The expression of the variable, if available.
**/
var ?expr:Expr;
/**
Whether or not the variable can be assigned to.
**/
var ?isFinal:Bool;
/**
Whether or not the variable is static.
**/
var ?isStatic:Bool;
/**
Metadata associatied with the variable, if available.
**/
var ?meta:Metadata;
}
/**
Represents a catch in the AST.
@see https://haxe.org/manual/expression-try-catch.html
**/
typedef Catch = {
/**
The name of the catch variable.
**/
var name:String;
/**
The type of the catch.
**/
var ?type:ComplexType;
/**
The expression of the catch.
**/
var expr:Expr;
}
/**
Represents the way something is quoted.
**/
enum QuoteStatus {
/**
No quotes
**/
Unquoted;
/**
Double quotes `"`
**/
Quoted;
}
/**
Represents the field of an object declaration.
**/
typedef ObjectField = {
/**
The name of the field.
**/
var field:String;
/**
The field expression.
**/
var expr:Expr;
/**
How the field name is quoted.
**/
var ?quotes:QuoteStatus;
}
/**
Represents function kind in the AST
**/
enum FunctionKind {
/**
Anonymous function
**/
FAnonymous;
/**
Named function
**/
FNamed(name:String, ?inlined:Bool);
/**
Arrow function
**/
FArrow;
}
/**
Represents the kind of a node in the AST.
**/
enum ExprDef {
/**
A constant.
**/
EConst(c:Constant);
/**
Array access `e1[e2]`.
**/
EArray(e1:Expr, e2:Expr);
/**
Binary operator `e1 op e2`.
**/
EBinop(op:Binop, e1:Expr, e2:Expr);
/**
Field access on `e.field`.
If `kind` is null, it is equal to Normal.
**/
EField(e:Expr, field:String, ?kind:EFieldKind);
/**
Parentheses `(e)`.
**/
EParenthesis(e:Expr);
/**
An object declaration.
**/
EObjectDecl(fields:Array<ObjectField>);
/**
An array declaration `[el]`.
**/
EArrayDecl(values:Array<Expr>);
/**
A call `e(params)`.
**/
ECall(e:Expr, params:Array<Expr>);
/**
A constructor call `new t(params)`.
**/
ENew(t:TypePath, params:Array<Expr>);
/**
An unary operator `op` on `e`:
- `e++` (`op = OpIncrement, postFix = true`)
- `e--` (`op = OpDecrement, postFix = true`)
- `++e` (`op = OpIncrement, postFix = false`)
- `--e` (`op = OpDecrement, postFix = false`)
- `-e` (`op = OpNeg, postFix = false`)
- `!e` (`op = OpNot, postFix = false`)
- `~e` (`op = OpNegBits, postFix = false`)
**/
EUnop(op:Unop, postFix:Bool, e:Expr);
/**
Variable declarations.
**/
EVars(vars:Array<Var>);
/**
A function declaration.
**/
EFunction(kind:Null<FunctionKind>, f:Function);
/**
A block of expressions `{exprs}`.
**/
EBlock(exprs:Array<Expr>);
/**
A `for` expression.
**/
EFor(it:Expr, expr:Expr);
/**
An `if (econd) eif` or `if (econd) eif else eelse` expression.
**/
EIf(econd:Expr, eif:Expr, eelse:Null<Expr>);
/**
Represents a `while` expression.
When `normalWhile` is `true` it is `while (...)`.
When `normalWhile` is `false` it is `do {...} while (...)`.
**/
EWhile(econd:Expr, e:Expr, normalWhile:Bool);
/**
Represents a `switch` expression with related cases and an optional.
`default` case if `edef != null`.
**/
ESwitch(e:Expr, cases:Array<Case>, edef:Null<Expr>);
/**
Represents a `try`-expression with related catches.
**/
ETry(e:Expr, catches:Array<Catch>);
/**
A `return` or `return e` expression.
**/
EReturn(?e:Expr);
/**
A `break` expression.
**/
EBreak;
/**
A `continue` expression.
**/
EContinue;
/**
An `untyped e` source code.
**/
EUntyped(e:Expr);
/**
A `throw e` expression.
**/
EThrow(e:Expr);
/**
A `cast e` or `cast (e, m)` expression.
**/
ECast(e:Expr, t:Null<ComplexType>);
/**
Used internally to provide completion.
**/
EDisplay(e:Expr, displayKind:DisplayKind);
/**
A `(econd) ? eif : eelse` expression.
**/
ETernary(econd:Expr, eif:Expr, eelse:Expr);
/**
A `(e:t)` expression.
**/
ECheckType(e:Expr, t:ComplexType);
/**
A `@m e` expression.
**/
EMeta(s:MetadataEntry, e:Expr);
/**
An `expr is Type` expression.
**/
EIs(e:Expr, t:ComplexType);
}
enum DisplayKind {
DKCall;
DKDot;
DKStructure;
DKMarked;
DKPattern(outermost:Bool);
}
/**
Represents a type syntax in the AST.
**/
enum ComplexType {
/**
Represents the type path.
**/
TPath(p:TypePath);
/**
Represents a function type.
@see https://haxe.org/manual/types-function.html
**/
TFunction(args:Array<ComplexType>, ret:ComplexType);
/**
Represents an anonymous structure type.
@see https://haxe.org/manual/types-anonymous-structure.html
**/
TAnonymous(fields:Array<Field>);
/**
Represents parentheses around a type, e.g. the `(Int -> Void)` part in
`(Int -> Void) -> String`.
**/
TParent(t:ComplexType);
/**
Represents typedef extensions `> Iterable<T>`.
The array `p` holds the type paths to the given types.
@see https://haxe.org/manual/type-system-extensions.html
**/
TExtend(p:Array<TypePath>, fields:Array<Field>);
/**
Represents an optional type.
**/
TOptional(t:ComplexType);
/**
Represents a type with a name.
**/
TNamed(n:String, t:ComplexType);
/**
Represents an intersection type `T1 & T2 & ... & TN`.
**/
TIntersection(tl:Array<ComplexType>);
}
/**
Represents a type path in the AST.
**/
typedef TypePath = {
/**
Represents the package of the type path.
**/
var pack:Array<String>;
/**
The name of the type path.
**/
var name:String;
/**
Optional parameters of the type path.
**/
var ?params:Array<TypeParam>;
/**
Sub is set on module sub-type access:
`pack.Module.Type` has `name = "Module"`, `sub = "Type"`, if available.
**/
var ?sub:String;
}
/**
Represents a concrete type parameter in the AST.
Haxe allows expressions in concrete type parameters, e.g.
`new YourType<["hello", "world"]>`. In that case the value is `TPExpr` while
in the normal case it's `TPType`.
**/
enum TypeParam {
TPType(t:ComplexType);
TPExpr(e:Expr);
}
/**
Represents a type parameter declaration in the AST.
**/
typedef TypeParamDecl = {
/**
The name of the type parameter.
**/
var name:String;
/**
The optional constraints of the type parameter.
**/
var ?constraints:Array<ComplexType>;
/**
The optional default type of the type parameter.
**/
var ?defaultType:Null<ComplexType>;
/**
The optional parameters of the type parameter.
**/
var ?params:Array<TypeParamDecl>;
/**
The metadata of the type parameter.
**/
var ?meta:Metadata;
}
/**
Represents a function in the AST.
**/
typedef Function = {
/**
A list of function arguments.
**/
var args:Array<FunctionArg>;
/**
The return type-hint of the function, if available.
**/
var ?ret:ComplexType;
/**
The expression of the function body, if available.
**/
var ?expr:Expr;
/**
An optional list of function parameter type declarations.
**/
var ?params:Array<TypeParamDecl>;
}
/**
Represents a function argument in the AST.
**/
typedef FunctionArg = {
/**
The name of the function argument.
**/
var name:String;
/**
Whether or not the function argument is optional.
**/
var ?opt:Bool;
/**
The type-hint of the function argument, if available.
**/
var ?type:ComplexType;
/**
The optional value of the function argument, if available.
**/
var ?value:Expr;
/**
The metadata of the function argument.
**/
var ?meta:Metadata;
}
/**
Represents a metadata entry in the AST.
**/
typedef MetadataEntry = {
/**
The name of the metadata entry.
**/
var name:String;
/**
The optional parameters of the metadata entry.
**/
var ?params:Array<Expr>;
/**
The position of the metadata entry.
**/
var pos:Position;
}
/**
Represents metadata in the AST.
**/
typedef Metadata = Array<MetadataEntry>;
/**
Represents a field in the AST.
**/
typedef Field = {
/**
The name of the field.
**/
var name:String;
/**
The documentation of the field, if available. If the field has no
documentation, the value is `null`.
**/
var ?doc:String;
/**
The access modifiers of the field. By default fields have private access.
@see https://haxe.org/manual/class-field-access-modifier.html
**/
var ?access:Array<Access>;
/**
The kind of the field.
**/
var kind:FieldType;
/**
The position of the field.
**/
var pos:Position;
/**
The optional metadata of the field.
**/
var ?meta:Metadata;
}
/**
Represents an access modifier.
@see https://haxe.org/manual/class-field-access-modifier.html
**/
enum Access {
/**
Public access modifier, grants access from anywhere.
@see https://haxe.org/manual/class-field-visibility.html
**/
APublic;
/**
Private access modifier, grants access to class and its sub-classes
only.
@see https://haxe.org/manual/class-field-visibility.html
**/
APrivate;
/**
Static access modifier.
**/
AStatic;
/**
Override access modifier.
@see https://haxe.org/manual/class-field-override.html
**/
AOverride;
/**
Dynamic (re-)bindable access modifier.
@see https://haxe.org/manual/class-field-dynamic.html
**/
ADynamic;
/**
Inline access modifier. Allows expressions to be directly inserted in
place of calls to them.
@see https://haxe.org/manual/class-field-inline.html
**/
AInline;
/**
Macro access modifier. Allows expression macro functions. These are
normal functions which are executed as soon as they are typed.
**/
AMacro;
/**
Final access modifier. For functions, they can not be overridden. For
variables, it means they can be assigned to only once.
**/
AFinal;
/**
Extern access modifier.
**/
AExtern;
/**
Abstract access modifier.
**/
AAbstract;
/**
Overload access modifier.
**/
AOverload;
}
/**
Represents the field type in the AST.
**/
enum FieldType {
/**
Represents a variable field type.
**/
FVar(t:Null<ComplexType>, ?e:Expr);
/**
Represents a function field type.
**/
FFun(f:Function);
/**
Represents a property with getter and setter field type.
**/
FProp(get:String, set:String, ?t:ComplexType, ?e:Expr);
}
/**
Represents a type definition.
**/
typedef TypeDefinition = {
/**
The package of the type definition.
**/
var pack:Array<String>;
/**
The name of the type definition.
**/
var name:String;
/**
The documentation of the type, if available. If the type has no
documentation, the value is `null`.
**/
var ?doc:String;
/**
The position to the type definition.
**/
var pos:Position;
/**
The optional metadata of the type definition.
**/
var ?meta:Metadata;
/**
The parameter type declarations of the type definition.
**/
var ?params:Array<TypeParamDecl>;
/**
Whether or not the type is extern.
**/
var ?isExtern:Bool;
/**
The kind of the type definition.
**/
var kind:TypeDefKind;
/**
The fields of the type definition.
**/
var fields:Array<Field>;
}
/**
Represents a type definition kind.
**/
enum TypeDefKind {
/**
Represents an enum kind.
**/
TDEnum;
/**
Represents a structure kind.
**/
TDStructure;
/**
Represents a class kind.
**/
TDClass(?superClass:TypePath, ?interfaces:Array<TypePath>, ?isInterface:Bool, ?isFinal:Bool, ?isAbstract:Bool);
/**
Represents an alias/typedef kind.
**/
TDAlias(t:ComplexType); // ignore TypeDefinition.fields
/**
Represents an abstract kind.