50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
package commands
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import (
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"fmt"
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"strings"
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"c65gm/internal/compiler"
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"c65gm/internal/preproc"
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"c65gm/internal/utils"
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)
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// FuncCommand handles FUNC declarations
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// Syntax:
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//
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// FUNC name # void function
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// FUNC name ( param1 param2 ) # function with parameters
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// FUNC name ( in:x out:y io:z ) # with direction modifiers
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// FUNC name ( {BYTE temp} out:result ) # with implicit declarations
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type FuncCommand struct {
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funcName string
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}
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func (c *FuncCommand) WillHandle(line preproc.Line) bool {
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params, err := utils.ParseParams(line.Text)
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if err != nil || len(params) == 0 {
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return false
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}
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return strings.ToUpper(params[0]) == "FUNC"
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}
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func (c *FuncCommand) Interpret(line preproc.Line, ctx *compiler.CompilerContext) error {
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c.funcName = ""
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funcName, err := ctx.FunctionHandler.HandleFuncDecl(line)
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if err != nil {
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return err
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}
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c.funcName = funcName
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return nil
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}
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func (c *FuncCommand) Generate(_ *compiler.CompilerContext) ([]string, error) {
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if c.funcName == "" {
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return nil, nil // No function name parsed
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}
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// Prepend marker before the function label
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marker := fmt.Sprintf("; @@FUNC_BEGIN %s", c.funcName)
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return []string{marker, c.funcName}, nil
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}
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