ddmd.ctfeexpr

struct CtfeStatus;

Global status of the CTFE engine. Mostly used for performance diagnostics

class ClassReferenceExp: ddmd.expression.Expression;

A reference to a class, or an interface. We need this when we point to a base class (we must record what the type is).

class VoidInitExp: ddmd.expression.Expression;

An uninitialized value

class ThrownExceptionExp: ddmd.expression.Expression;

Fake class which holds the thrown exception. Used for implementing exception handling.

class CTFEExp: ddmd.expression.Expression;

This type is only used by the interpreter.

bool needToCopyLiteral(Expression expr);

Aggregate literals (AA/string/array/struct)

ArrayLiteralExp createBlockDuplicatedArrayLiteral(Loc loc, Type type, Expression elem, size_t dim);

Helper for NewExp Create an array literal consisting of 'elem' duplicated 'dim' times.

Parameters:

Loc loc	source location where the interpretation occurs
Type type	target type of the result
Expression elem	the source of array element, it will be owned by the result
size_t dim	element number of the result

Returns:

Constructed ArrayLiteralExp

StringExp createBlockDuplicatedStringLiteral(Loc loc, Type type, dchar value, size_t dim, ubyte sz);

Helper for NewExp Create a string literal consisting of 'value' duplicated 'dim' times.

bool isTypeInfo_Class(Type type);

TypeInfo operations

bool isPointer(Type t);

Pointer operations

bool pointToSameMemoryBlock(Expression agg1, Expression agg2);

Return true if agg1 and agg2 are pointers to the same memory block

bool isCtfeComparable(Expression e);

Constant folding, with support for CTFE

Return true if non-pointer expression e can be compared

with >,is, ==, etc, using ctfeCmp, ctfeEqual, ctfeIdentity

int specificCmp(TOK op, int rawCmp);

Returns cmp OP 0; where OP is ==, !=, <, >=, etc. Result is 0 or 1

int intUnsignedCmp(TOK op, dinteger_t n1, dinteger_t n2);

Returns e1 OP e2; where OP is ==, !=, <, >=, etc. Result is 0 or 1

int intSignedCmp(TOK op, sinteger_t n1, sinteger_t n2);

Returns e1 OP e2; where OP is ==, !=, <, >=, etc. Result is 0 or 1

int realCmp(TOK op, real_t r1, real_t r2);

Returns e1 OP e2; where OP is ==, !=, <, >=, etc. Result is 0 or 1

int ctfeEqual(Loc loc, TOK op, Expression e1, Expression e2);

Evaluate ==, !=. Resolves slices before comparing. Returns 0 or 1

int ctfeIdentity(Loc loc, TOK op, Expression e1, Expression e2);

Evaluate is, !is. Resolves slices before comparing. Returns 0 or 1

int ctfeCmp(Loc loc, TOK op, Expression e1, Expression e2);

Evaluate >,<=, etc. Resolves slices before comparing. Returns 0 or 1

void assignInPlace(Expression dest, Expression src);

Assignment helper functions

UnionExp changeArrayLiteralLength(Loc loc, TypeArray arrayType, Expression oldval, size_t oldlen, size_t newlen);

Given array literal oldval of type ArrayLiteralExp or StringExp, of length

oldlen, change its length to newlen. If the newlen is longer than oldlen,

all new elements will be set to the default initializer for the element type.

bool isCtfeValueValid(Expression newval);

CTFE Sanity Checks

UnionExp voidInitLiteral(Type t, VarDeclaration var);

Void initialization