adcf05d26f
* parsing variable function types * finished variadic functions * fix case where number of passed args to variadic function is 0 * remove extraneous OpVarArgs * allow multiple variables in variadic function declaration * fix IdentList string method to print multi-arg variadic functions correctly * round 2 of fix IdentList string method to print multi-arg variadic functions correctly round 2 of fix IdentList string method to print multi-arg variadic functions correctly * clean up tasks in OpCall handling, add tests for variadic closures * cleanup for pr - add syntax documentation - cleanup parseIdentList - cleanup OpCall handling for functions and closures - cleanup tests
62 lines
1.5 KiB
Go
62 lines
1.5 KiB
Go
package objects
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import (
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"github.com/d5/tengo/compiler/source"
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"github.com/d5/tengo/compiler/token"
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)
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// CompiledFunction represents a compiled function.
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type CompiledFunction struct {
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Instructions []byte
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NumLocals int // number of local variables (including function parameters)
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NumParameters int
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VarArgs bool
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SourceMap map[int]source.Pos
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}
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// TypeName returns the name of the type.
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func (o *CompiledFunction) TypeName() string {
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return "compiled-function"
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}
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func (o *CompiledFunction) String() string {
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return "<compiled-function>"
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}
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// BinaryOp returns another object that is the result of
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// a given binary operator and a right-hand side object.
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func (o *CompiledFunction) BinaryOp(op token.Token, rhs Object) (Object, error) {
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return nil, ErrInvalidOperator
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}
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// Copy returns a copy of the type.
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func (o *CompiledFunction) Copy() Object {
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return &CompiledFunction{
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Instructions: append([]byte{}, o.Instructions...),
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NumLocals: o.NumLocals,
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NumParameters: o.NumParameters,
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VarArgs: o.VarArgs,
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}
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}
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// IsFalsy returns true if the value of the type is falsy.
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func (o *CompiledFunction) IsFalsy() bool {
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return false
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}
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// Equals returns true if the value of the type
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// is equal to the value of another object.
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func (o *CompiledFunction) Equals(x Object) bool {
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return false
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}
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// SourcePos returns the source position of the instruction at ip.
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func (o *CompiledFunction) SourcePos(ip int) source.Pos {
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for ip >= 0 {
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if p, ok := o.SourceMap[ip]; ok {
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return p
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}
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ip--
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}
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return source.NoPos
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}
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